China"s "Eleventh Five Year" Plan pointed out that to build a resource saving and environment friendly society, focusing on the development of circular economy has insisted on developing equal emphasis on conservation, conservation priority, according to reduction, re use, resource oriented principle, resource extraction, production of consumption, waste generation, consumption and other sectors, and gradually establish the resources of society as a whole recycling system; to save energy, water conservation, saving land, saving materials and strengthening the comprehensive utilization of resources to strengthen the promotion of conservation policies. Machinery manufacturing industry from the simple pursuit of scale and efficiency of the model to build 4R cycle of economic direction.

For the natural environment and achieve the harmonious development of the required mining machinery "eco", with the help of advanced technologies on manufacturing model, manufacturing resources, manufacturing, process manufacturing organizations continually innovate to make our products throughout the life cycle does not produce environmental pollution or environmental pollution minimize the maximum utilization of resources, the lowest energy consumption, and ultimately corporate co ordination of economic and social benefits. Efficient, zero emission fuel cell mining machinery has good development prospects. Geothermal energy as green, renewable resources has been identified as countries around the world to maintain social sustainable development, new energy, the geothermal resource rich developed countries have been a better use of resources and the development of crustal heat treatment of solid waste resources for the Mining Machinery expanded its service areas. Mining machinery in the computer technology, network technology, multi disciplinary integrated support for economic development, driven by demand in the market, in the harmonious development of mankind and nature, the mining machinery has been upgraded to digital, intelligent, ecological and pleasant oriented direction.

Therefore, the state owned mining machinery plant in Henan With this favorable opportunity, and vigorously develop new products and equipment, such as coarse broken jaw breaking series of mobile crushing machines, broken the back breaking series of mobile crushing machine, crushing cone breaking series of mobile crushing machines, MTW European edition trapezoidal milling machine, large vertical milling machine, CS cone crusher, the EU version of JC series of jaw crusher (jaw crusher), VSI New Type Sand, 5X Series New Sand (system of sand machine), large scale hydraulic milling machine, and so a number of high gold content of the mining machinery and equipment, specifically for the current needs of the natural environment and national construction standards used in aggregate research and development, and is widely used in key national highways, railway engineering projects, including water conservancy, hydropower and other industries strong advantage, especially the European version of trapezoidal vertical milling machine and a large flour mill with a typical representative of the two mill products, popular with all major cement welcome and favor, is the only energy saving and environmentally friendly cement by the best equipment.

The development of a mining machinery of the technological progress of mankind, modern science and technology and is closely related to the overall industrial level, particularly with the mechanical engineering sciences and closely linked to the development of mining disciplines. Forefront of modern science and technology has obvious time domain, area, and dynamic properties. Information science, materials science, life science, nano science, management science and manufacturing science are changing the 21st century; mainstream science, the resulting high tech and the industry will change the world.

The intersection between the integration of different scientific will generate new scientific focus, economic development and social progress of the mining machinery to generate new demands and expectations. Mechanical Engineering, the general trend of scientific development will be digital, intelligent, precision, miniaturization, life oriented, and ecological. Mining machinery, as a branch of mechanical engineering disciplines, but also follows this general trend. At the same time, combining the characteristics of mining industry and its development trend is the digital, intelligent, and ecological and amenity oriented. Mining machinery manufacturing industry should continue to integrate into the human outstanding achievements in various fields, facing the major national economic development needs of the scientific outlook on development as guidance, to achieve sustainable development.

The overall level of China’s mining machinery, compared with the international advanced level there are still gaps. In the run mining machinery manufacturing power journey, opportunities and challenges coexist. Product design is the soul of the manufacturing industry, product structure, function, quality, cost, delivery time and manufacturability, maintainability, and disposal post processing, and human, machine and environment relationship, in principle, are in the product design stage decision. Product innovation and design capability has become a deciding the status of global competition in the primary factor.

Mining Machinery is a high technological content and integration of equipment, development of new equipment constantly results in all areas of human integration in, along with materials science, manufacturing technology, information technology, computer technology, each product has a into new technologies, parts and components updates become shorter and shorter, faster and faster replacement of new equipment, in particular the development of large scale mining machinery, non mature experience to draw on, but the design does not allow any mistakes and must therefore be With the integration of multi-disciplinary technologies to improve design efficiency and design quality, enhance corporate capability of independent innovation and market competitiveness. Mining machinery and computer technology, network technology, based on the formation of an integrated digital technology trends. As the professional manufacturer of complete sets of mining machinery, such as  hammer crusher and ore beneficiation machine, Henan Hongxing is  always doing the best in products and service. 

I have received several emails this week asking my thoughts on the current price action in precious metals. Some subscribers are asking how low gold and silver might go in the short term and my honest response is “I have no idea.” Anyone that claims they can predict the short-term price movements in a market as manipulated as this one is blowing hot air. The banks can utilize leveraged paper contracts to take gold down to $1,200 and silver to $20 if they want to, in the short term.

However, they absolutely can not keep prices this low for very long, as free market forces will bring things back into equilibrium. In fact, recent take down attempts have been met rather quickly with buying from strong hands, much of it likely coming from China. While I still believe that the manipulators can create rather substantial take downs that scare weak hands out of their positions in the short term, they are becoming less effective and more impotent each day. This has been obvious in the charting, where buyers are stepping up to take advantage of these paper-driven artificial sell offs. I view this manipulation of paper prices as insignificant. Whether gold falls to $1,200 or only drops to $1,600 and bounces, I have no doubt it will continue to preserve wealth and continue to increase the purchasing power of those holding it over time.

I believe it is important not to give into emotions during corrections such as these. If you have been staring at your computer screen and stressing the price action this week, you are doing yourself a great disservice. I would suggest that your focus should be mustering the strength to stick with your convictions, ignore the noise and keep your eye on the longer-term picture. I see nothing wrong with hedging via put options or inverse ETFs, but I’ve found it easier and more effective to simply hold onto core positions and buy the dips.

I am convinced that gold and silver will eclipse their previous inflation-adjusted highs before this bull market is over. This means that gold will climb above $2,400 and silver above $150 at an absolute minimum. If we use more realistic inflation numbers such as those calculated by John Williams of Shadow Stats, the true inflation-adjusted highs are more than triple the prices listed above. Whether gold climbs to $8,890 and silver to $517 remains to be seen, but I believe we are likely to see the lower price targets listed above within the next 12 to 18 months.

If you agree with this assessment of the situation, then there is no reason to be concerned when silver falls by 5% or 10% in a week. When silver is trading anywhere from $150 to $517 per ounce, will it matter much if you bought at $30 or $35? Will the temporary decline that we are currently experiencing have any meaning at all? As the professional manufacturer of complete sets of mining machinery, such as jaw crusher and Impact crusher, Henan Hongxing is always doing the best in products and service.

I have received several emails this week asking my thoughts on the current price action in precious metals. Some subscribers are asking how low gold and silver might go in the short term and my honest response is “I have no idea.” Anyone that claims they can predict the short-term price movements in a market as manipulated as this one is blowing hot air. The banks can utilize leveraged paper contracts to take gold down to $1,200 and silver to $20 if they want to, in the short term.

However, they absolutely can not keep prices this low for very long, as free market forces will bring things back into equilibrium. In fact, recent take down attempts have been met rather quickly with buying from strong hands, much of it likely coming from China. While I still believe that the manipulators can create rather substantial take downs that scare weak hands out of their positions in the short term, they are becoming less effective and more impotent each day. This has been obvious in the charting, where buyers are stepping up to take advantage of these paper-driven artificial sell offs. I view this manipulation of paper prices as insignificant. Whether gold falls to $1,200 or only drops to $1,600 and bounces, I have no doubt it will continue to preserve wealth and continue to increase the purchasing power of those holding it over time.

I believe it is important not to give into emotions during corrections such as these. If you have been staring at your computer screen and stressing the price action this week, you are doing yourself a great disservice. I would suggest that your focus should be mustering the strength to stick with your convictions, ignore the noise and keep your eye on the longer-term picture. I see nothing wrong with hedging via put options or inverse ETFs, but I’ve found it easier and more effective to simply hold onto core positions and buy the dips.

I am convinced that gold and silver will eclipse their previous inflation-adjusted highs before this bull market is over. This means that gold will climb above $2,400 and silver above $150 at an absolute minimum. If we use more realistic inflation numbers such as those calculated by John Williams of Shadow Stats, the true inflation-adjusted highs are more than triple the prices listed above. Whether gold climbs to $8,890 and silver to $517 remains to be seen, but I believe we are likely to see the lower price targets listed above within the next 12 to 18 months.

If you agree with this assessment of the situation, then there is no reason to be concerned when silver falls by 5% or 10% in a week. When silver is trading anywhere from $150 to $517 per ounce, will it matter much if you bought at $30 or $35? Will the temporary decline that we are currently experiencing have any meaning at all? As the professional manufacturer of complete sets of mining machinery, such as jaw crusher and Impact crusher, Henan Hongxing is always doing the best in products and service.

In line with marble dust powder production, the units consists of grinding mill, powder classifying machine, cyclone collector, retarder, blower, hammer mill and elevator, power and control cabinet. Crushing plant is widely used marble to produce ground calcium carbonate (marble dust, marble dust in sizes from 20 to 200 mesh or gravel) as filler in concrete and paving materials.Hongxing Machinery marble dust powder production plant is widely used in Iran marble processing plant powder.

The mill is the best choice for customers to produce powder of different sizes from 2mm - 5 microns. Line gypsum powder processing making use of advanced processing equipment such as ball type mill, grinder, etc. The grinding machine gypsum has the advantages of compact size, simple structure, high productivity, low power consumption, stable physical performance, ease of use and low operating cost. Today, our production of gypsum powder is well received in the United States, Canada, France, Germany, England, Spain, Iran, Pakistan, Thailand, Australia, Thailand, Uzbekistan, Colombia, Mexico, etc. Hongxing Machinery can produce gypsum powder production line with an output ranging from 0.3 to 100 TPH TPH. China mainly uses talcum powder dry machining process, the equipment used to Raymond, mechanical impact mill, jet mill types of main plant and other plants use less. The basic technology used in Hongxing Machinery German production plant spray is widely used. Hongxing Machinery has now proven technology and its ability to produce talc-45μm 5 microns or finer.

The activation technology, change and granulation is gradually promoting the use of nano-talc products have been developed in the common institutions of higher education with Hongxing Machinery. In production line of talcum powder, talc ground is ground to a powder with 200 mesh and 325 mesh, used for papermaking. Talcum powder fine is less than 5 microns, and mainly used in coatings, paints, pharmaceuticals, cosmetics, plastics and other industries. Mill is the major powder making machine to produce calcium carbonate from marble rocks. Hongxing Machinery is a professional manufacturer of grinding mill and exporter, we can design and manufacture ball type mill, Raymond mill, trapezium mill, trapezium mill European type, coarse powder mill, super thin grinding mill and so on. Ball mill has many types. Accordin to the working type, it is decided into wet ball mill and dry ball mill.
Energy-saving ball mill has made a great improvement in the structure compared to the traditional ones. Its cylinder and supporting fame compose an integral system, thus, when it is being fixed, Energy-saving ball mill will be hung on the foundation once. Equipped with double-tiered centripetal roller bearing, its power consumption will be reduced by 30%. The intrinsic grill pattern forcing discharge is replaced by overall pattern controlling discharge, which enhances the fineness of final product, and meanwhile increase the capacity by 15-20%.
Ball mill another application is used as cement grinder. Cement manufacturing mill is mainly used to grind the clinker and raw materials in cement industry and also can be applied in metallurgy, chemical, electric power and other industries to grind all kinds of ores .Cement  mill is not only suitable for over-flow grinding, but also applicable for cyclic close-flow grinding together with powder collector.

Traditional paving stone system is environmental friendly as grass-pavers allow the filtering through of rainwater. The soil below the ground is allowed to drink and breathe. Rain fall is not allowed to run waste. A traditional paving stone is not only aesthetically appealing and enhances the appeal of the garden landscape and the curb but its strength is treble that of concrete or asphalt. A paving stone never cracks or wears out and it is resistant to skidding. The maintenance cost is minimal; it does not store heat and can withstand seismic undulations without showing cracks. The joints are mortals and thus there are no grouts that will crack or chip. A paving stone is ideal for cold climes because of the improved ratio between freezing and thawing. Allowing for a modest down time, the paving stone can be used as soon as it is installed. The paving stone can be set either by hand or machine and the price are modest.

The best part of shopping for paving stone is that one can go online and view all the various designs, colors and shapes. Most of the traditional paving stone are mortar less and the stones are interlocking. This adds security especially in times of earthquakes when the paving stone moves with the lust lines and thus there are no cracks. The individual paving stone comes in many shapes, sizes and textures the colours being suitable for any décor. The use of traditional paving stone is advantageous to permanently mark parking bays, walking zones for crossing, traffic routes and other areas that need to be identified. With the laying of the paving stone system repair of streets become simplified without requiring shut down of large traffic zones or patchwork ugliness.

If the paving stone system is installed properly then shifting, sinking and buckling does not happen. It is best answer for pathways scheduled for walking, cycling or for heavy traffic like trucks and even fork lifters. Most firms give a lifetime warranty for paving stone used for residences. The pavers come are of different textures smooth but not slippery and slightly coarse for the rustic look. Those with fine texture show up the subtle play of colours and designs.

Concrete on the other hand cracks with the weather and is not proof to earthquakes. The strength of a traditional paving stone is three times more than concrete. These can be easily repaired and hardly requires curing time. Repairs leave no scars unlike concrete. In the case of concrete the choice of colours is limited but with paving stone there is a wide range of customized colour and myriad shapes to suit individual tastes. The non-modular paving stone has the unique ability of spreading the load and tension over wide areas bricement paversdging the action between each separate unit This allows it to bear heavy traffic easily without resorting to the reinforcing it with steel as is done with concrete. The traditional paving stone is the answer to giving the touch of class to the great outdoors driveways and pathways sturdy as well as beautiful. With its high quality products such as hammer crusher, Raymond mill, Hongxing Machinery has ascended in the front rank of the world in the exporting of mining equipment.

South African-based Pilot Crushtec, manufactures of crushing, screening and conveying systems, is making its contribution to development in Africa by providing equipment used to develop infrastructure and to boost minerals production. Foreign investment into African countries for development has boosted African sales for the company by almost 80% in the past five years, with the greater portion of this growth being in the past 12 to 16 months, according to Mr. Graham Kleinhans, sales manager for the company.

Mr. Kleinhans said this accounted for 12% to 15% of the company turnover, and during the past year, this represented sales of about R25-m. He said he anticipated that sales into Africa by the company would grow to 30% to 40% of turnover within the next few years. Equipment manufactured at its Jet Park facility in Gauteng, is being used by the mining industry in the DRC, and in mining and infrastructure development on the continent, in Namibia, Botswana, Mozambique, Angola, and Zambia, and as far a field as Kenya. Giving examples of recent major sales, Mr Kleinhans said Pilot Crushtec had sold a vertical shaft impact type crusher to provide a solution for a major road-making contract in Botswana. In Namibia, large investments were made in mobile screening equipment from Pilot Crushtec for use in diamond mining operations.

We have embarked upon a serious marketing drive into Africa. There is so much potential on the continent and politically, Africa is now considered to be more stable. Apart from mining, we also see the potential associated with other projects like the construction of highways, airports, sugar mills as well as huge dam projects, he said. Our company is aiming at a 30% to 40% growth rate per annum and we believe we can achieve this with our growing sales into Africa.

Mr Kleinhans went on to add that 80% of sales into African countries comprise complete systems from its modular range of semi-mobile, skid mounted, ready-to-run crushing, screen and conveying equipment. These systems meet current needs in Africa because they are cost-effective and relatively easy to move around. The modular system is readily extended as the need for production increases, he said. An additional aspect in our favour is that in spite of high demand, we can still deliver plant in four to six weeks, which is unheard of in the industry. For a relatively big plant, this delivery time is nothing, but we would like to reduce the delivery time to only two to three weeks.

Another interesting development is that foreign companies investing in Africa have a preference for equipment from South African-based companies because they are assured of an efficient back-up service. Now we can see the benefit of a Made in South Africa sticker on our products. Investors want to know the product they buy has a warranty that means something, he said. Mr Kleinhans added that while other manufacturers sold crushers and conveyors, Pilot Crushtec is the only company that sells solutions. We put everything together in one package by providing a system for material to be fed in at one end, processed and for the finished product to come out on the other end, he said. We put it all together quickly, with a 12-month warranty, and we guarantee that it will work smoothly. Today, people prefer to buy the whole puzzle, and this is the unique service that we provide. With its high quality products such as hammer crusher, Raymond mill, Hongxing Machinery has ascended in the front rank of the world in the exporting of mining equipment.

In 1923, the British Government exclusive concessions of theUSA and South African mining territory granted groups over large areas inZambia (then Northern Rhodesian). Copper began in 1927 at the Chambisi mine in “Copperbelt Province”. Development of mining inZambia was on the agenda of the first years of colonization. The British South Africa company in 1889 ceased to “extend the railway and telegraph network in the North to the Zambezi River, to promote the migration and colonization and trade and mining concessions” to develop. Until 1923,Zambia was maintained within the direct control of the company. This period created a large number of small businesses for prospecting and extraction. Many prospectors thoughtZambia was a secondSouth Africa, with a wealth of precious metals, but soon had ambitions to copper exploitation limit. TheRhodesia copper company was founded in 1902 and began the copper mines of Kafue and Bwana Mkubwa develop.

In 1920, two other companies that were associated with copper Rhodesia exclusive mineral rights granted set up of the copper company venture from the British South Africa on an area of 80,000 square kilometers, on the border with the Belgian Congo (Zaire now is). Another mining company,Tanganyika concessions already 1899 established mining rights inZambia was given by British South Africa, andZaire by the King of the Belgians. Founded in 1906, the company in cooperation with the Belgian State, you the Union Minière HautKatanga which much later was in theKatanga secession for the independence of theCongo. Two companies then out: Rhodesian selection trust and Rhodesian Anglo American Corporation, the Zambian mines for more than 40 years were the control. In 1930, around 6,000 tonnes per year and until 1940 was 266,000 tonnes per year, the copper production inZambia. Copper mining decreased with the Second World War but in the 1950s, the production of 280,000 to 568.000 tons per year increased. In the 1960s was much slower growth in the field of mining and copper output increased by 30% between 1960 and 1970. Here the production growth reflects the worldwide demand for copper, then very quickly increases tend to stabilize the.

In the 1970s, the mining companies were copper production nationalized peaked at more than 750,000 tonnes per year achieved. Such a level should be achieved never again in the 1970s a decade that the crisis of copper marked specialisation inZambia despite huge reserves. In the early 1980’s copper output was only approximately 550,000 tons. In many waysZaire was similar to that experience. As inZambia, the development of the mining industry had the basis of a colonization by financial capital since the beginning of the century led been. The first copper Mills back until 1911 in Lubumbashi. Invested in the 1930s, the Belgian financial groups strongly in mining. But unlike inZambia, the copper mining inZaire grew relatively faster in the 1960s and 1970s, than it had in the 1940s and 1950s. 237,000 To 500,000 tons copper output rose between 1958 and 1974. Between the wars, copper specialization in Central and southern Africa was already well developed, since about a fifth of world production, provided these areas until 1970, when she began to fall. Among other metallic minerals, chromium as important in this time, since Africa was also provided one-fifth of world production. Iron year’s production much later, during the 1950s and 1960s. As a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete stone crushing station. We also supply individual jaw crusher and Raymond mill as well as spare parts of them.

The expenditure method: the total amount of domestic spending by consumers, firms, government and foreigners. National income accounting is the process whereby countries attempt to measure these flows. The result of each the three methods is the gross domestic product. An examination of the national income accounts gives an insight into the economy. In reality the households do not spend all their current income. Some is saved. This represents a leakage from the circular flow. In addition to the consumer spending, firms also carry out investment spending. This is an injection to the circular flow of income Biz/auricular flow of income, as it does not originate from consumers current income.

The Virtual Developing Country is a case study of Zambia. There are a series of field trips available looking at different circular flow of incoming issues connected with economic development. This trip is the Copper Tour and this page looks at the Circular Flow of Income. The circular flow of income is a model of the economy showing flows of goods and services and sectors of production between firms and households. In the absence of government and international trade this model shows that households provide the sectors of production for firms who produce goods and services. In return the sectors of production receive sector payments, such as wages, which in turn are spent on the output of firms. This basic flow is shown in the diagram below.

In the real world the government and international trade sectors must also be included. Economic systems are in reality three sector open economies. Consequently there will be additional leakages and injections. Government spending will be injected into the circular flow and taxation will leak from it. Export flows will be injected and imports flows leaked. A full circular flow with leakages and injections is shown below. This model of the economy demonstrates that economic activity is a flow. In actual ct it can be considered two flows, one of goods and services and a flow of money. The size of these flows is an indicator of the amount of economic activity. The circular nature of the flows means that there will be a number of different ways of measuring the size of the flow. Economists maintain that there are three possible ways of measuring this flow with each way looking at a different part of the circular flow of income. It provides data which governments and external agencies can use in a variety of different ways.  As a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete stone crushing station. We also supply individual jaw crusher and Raymond mill as well as spare parts of them.

A model for analysis and monitoring of energy consumption was made at the Department of Surface Mining, Faculty of Mining and Geology in Belgrade, headed by Prof. dr Radomir Simic. The model consists of four main blocks as follows: analytic block for structural design, analytic block for project design, correction for technological block and a block for existing technological process. The mentioned blocks permit that within a model zone, where analysis and preparation works are carried out, constructive and project designs are studied with the aim to estimate the installed power at machines, then working and technological parameters, as well as the adjustment of natural factors with the opening of the pit. In case the solutions within the construction and the project are correct, they are applied at the block of the existing technological process, namely the zone of the input data. The main part of the model represents the determining of standards and recording, thus allowing computer preparation and modelling in the coding and modelling zone. The final part of the model represents the zone of optimization and output data where the technological, spatial and organizational parameters are optimized and where the realized specific energy consumption and the economic effects are determined.

Elaboration of the said models was carried out by dr Miodrag Gomilanovid in the conditions of the “Potrlica” coal open pit mine in the Pljcvlja coal basin. The annual coal capacity of the “Potrlica” coal open pit mine is 1.5 million tons, and 6.1 million m3 of overburden. The pit belongs to a deep type having exceptionally complex exploitation conditions. The complexity of conditions is determined by: depth of occurrence and angle of inclination of coal scam, properties of overburden, foot wall and coal seam with partings, strong presence of ground and surface waters, pronounced geomechanical problems, problems of storing the excavated overburden, seismically effects on the town of Pljevlja and other settlements. All those conditions determined the technology which during the process of excavating, loading and transportation of coal appears as discontinues, while it is combined in the process of overburden transportation.

Excavation of overburden and interlayer tailing is carried out at several levels from 5 to 15 meters, in high and depth, by bucket dredgers and draglines, with shovel bucket volume from 4 to 15 m3. Prior to excavation, drilling-blasting works on coal are performed as well as the works on interlayer tailing in almost entire hanging wall – overburden. Only the surface part of overburden, composed of humus and alluvial (pebble, sand and clay) is not blasted. As a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete stone crushing station. We also supply individual jaw crusher and Raymond mill as well as spare parts of them.

Transportation of overburden, within the limits of the open pit surface itself, to internal waste dump and crushing equipment is carried out by dumper capacity from 50 to 70 t, and volume of loading frame from 30 to 50 m3. Transportation of overburden to the external deposit is carried out by belts with previous crushing of material by crushers. At the present stage of exploitation, six transporters were installed, three of which being permanent and three mobile, in a total length of around 4500 m. The said transportation system also consists of below-level dump stackers and above- level dump stackers having the capacity adjusted to transporters. Coal transportation from open pit mine to crushing and separation plant is also performed by dumpers capacity of 36 t, volume frame of 26 m’. In this plant classification of coal is made depending on its market purpose.

General prognosis that deals with the development of surface exploitation of coal inYugoslavia, along with ecological issues also covers large energy and materials consumption in this field as a strong limiting factor. Such estimation is based on the ever increasing requirements for energy. Spare parts and various materials that in surface exploitation of coal are growing with increase of the physical volume of production.

The complex analysis of the factors influencing consumption of energy and materials in the surface exploitation recognizes three groups of main factors such as natural, technological and organizational. The group of natural factors covers separation of deposits, relief of terrain, coefficient of overburden, physic-mechanical properties of the deposit, and depth of mining, mineral materials quality and length of transportation roads. Technological factors include structural equipment design, project designs, installed power, method of excavation, loading and transportation, method of piling, development of excavated faces, useful value of mined materials and mineral processing. Quality mineral materials and the length of transportation roads can also be listed among the technological factors. The organizational factors are represented by: managing of process, qualification of stuff, maintenance of mechanization and monitoring the energy as well as material consumption.

Evaluation of the existing position of energy and material consumption at open pit mines inYugoslavia under the stated influential factors indicates that the possibilities for consumption are present. The consumption could be realized if the whole problem is thoroughly studied and if systematic monitoring, analyzing and planning all the standards as concerns the conditions characteristic for the open pit is provided for. The existing Yugoslav practice applied in the surface exploitation, the principles of planning and monitoring the energy and material consumption have not been regulated by the unique methodology. The principles of planning the material consumption have mainly been grounded on monitoring the empirical indicators. The data from previous years arc mostly taken and the consumption used is divided into the realized production and in a such a way the value of consumption per production unit is obtained. Such a way of planning the consumption permitted a constant struggle for achieving better results than during the previous year but it lacked professionally and scientifically defined methodology of real planning. Thus similarly the monitoring of energy consumption is carried out. While monitoring electric power consumption the data used refer to periodical control of such energy consumption and a comparison with the planned quantities was accordingly made, having in most cases quite a negative effect, as the adequate interventions failed when a large consumption was in question. Somewhat less complex system of evidencing was applied when monitoring fuel consumption, particularly in case of open pits having their own pump stations. Rarely, complex factors influencing the consumption of energy and material were analyzed such as the efficient technological processes and efficient organization of labor. Since recently, consumption of energy and material at open pits in Yugoslavia has become much actual. As a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete stone crushing station. We also supply individual jaw crusher and Raymond mill as well as spare parts of them.

Certain open pit mines initiate the study of a series of mutually interlinked issues concerning technology, efficiency and organization of production, thus overpassing the accepted principle that the planning standards are only based on the previously achieved consumption standards. Defining the modem methods of monitoring energy and material consumption might be considered as the general scientific-research direction in surface exploitation for the purpose of decrease in overall costs and better productivity.

In the final part of our Mining Financial Basics series, we briefly cover ten common financial terms you might hear around the mine site. This is the final post in the series, and I hope you’ve enjoyed the series and learnt a little about the financial concepts you’re likely to encounter around a mining operation or mining company head office. To finish off, here’s a brief list of some other common financial terms you might hear:

Earnings Before Interest and Tax – this is the most common measure of what we normally call profit. It is total revenues minus total costs, but excluding the costs of paying interest on borrowings or paying tax. Interest and tax are excluded to basically show the net profit achieved before taking into consideration taxes and finance costs. We exclude interest and tax as these costs are not directly related to how profitable or well performing the operation is. They are more like costs of doing business rather than directly telling us how well we are going. EBIT is the most common form of measuring operational profit.

Earnings Before Interest, Tax, Depreciation and Amortization – another measure of profit. This time it is revenues minus costs, again excluding the costs of interest and tax. This time we also exclude depreciation costs (see below) and amortization costs (see below). Again this is just a different measure for profits taking out some additional measures that aren’t directly related to operational performance (i.e. depreciation is more related to capital assets than how well the business actually did).

Depreciation is basically how much the assets of the business decline in value. For example your car will decline in value over time – if you were a business, the amount by which it declines in value each year could be claimed as a depreciation cost. It is recognised as a cost even though no cash is involved. It is essentially a cost item which recognises how much value the company’s assets have lost each period.

Amortisation is the same as depreciation, except it applies to loss or gain in value of intangible assets of the company. Where depreciation applies to physical capital assets, amortisation applies to intangible assets. Intangible assets are those things a company puts a value on, even though there is nothing that physically exists. Intangible assets include things like the value of goodwill, a brand, deferred tax assets, patents, and capitalised R&D - things that make the company worth more in rotary kiln and dryer machine manufacturing even though you can’t actually see them. Amortisation then is recognising the change in value of these assets as either a cost or revenue to the company, which once again is obviously a non-cash item.

Executives at manufacturing companies across state are grappling with a perplexing dilemma: Despite unemployment remaining at a traditionally high level, manufacturing is being crippled by a lack of skilled workers. This problem is not new. Manpower Inc. reported in its “2009 Talent Shortage Survey” that manufacturing-related occupations — skilled trades, technicians, engineers, et al — rank among the top five positions that employers were having the most trouble filling. Fast forward three years later, and the problem is not getting any better. An October 2011 survey from Deloitte and The Manufacturing Institute showed American manufacturers cannot fill as many as 600,000 skilled positions.

More disturbing is that the survey results show that while 67 percent of manufacturers say they have a moderate to severe shortage of available and qualified workers, 56 percent expect the problem to increase in the next three to five years. Demand for skilled workers is at a peak, a crescendo that threatens to drown out any possibility of a recovery in the sector. Sixty-four percent of respondents to the Deloitte survey say this lack of talent is having “a significant impact” on their ability to expand operations or improve productivity. Many West Michigan manufacturers are tired of the search for talent. They are finding they have to grow their own.

"People are just starting to realize that they need to grow these skilled workers from within or with internships they can use to train them in the most beneficial way,” said William C. Small, VP of technical services at The Right Place Inc. and west regional director of the Michigan Manufacturing Technology Center. “That can be quite an undertaking.” The trend of companies developing internal avenues for talent development is in its infancy, Small said, noting that many seasoned people on the manufacturing shop floor are being asked to step up to management. While Small said many people believe candidates have a great opportunity to pursue CNC machining, for example, he believes the need among local manufacturers is a little more general than that.

Now, they don’t feel so blessed. Sources say that not only are the veteran skilled workers gone from the industry, but also the younger generations — those at ages when people historically went into manufacturing — want nothing to do with factory life. They’ve been tempered by a negative image many people associate with manufacturingof vibrating screen and other mining machines such as Raymond mill. They — and their parents, in many cases — believe it is dirty and dangerous, even though advanced manufacturing is none of the above, experts say. That has been a problem for manufacturing since the mid-1970s. But now the sector faces a new dilemma. It was counted out for so many years, and its rebirth has been totally underreported.

When a pair of socks is designed from scratch specifically to suit the mining industry, we just had to check out a pair and see how good they are!

The feet of a miner have a hard time that’s for sure - stuck in rubber or leather boots for twelve hours on end through heat, cold, dirt, mud and water. We’re on our feet a lot and our boots always eventually end up full of dirt or leaking water at some point. The socks we wear are pretty important then in keeping us comfortable, hygienic and productive shift after shift.

I’ve just been sent a pair of socks that have been designed by a miner, specifically for use in the mining industry, both surface and underground. The socks are produced and sold by Miners Corp Essentials, a Perth-based company started by a miner who saw a need and came up with a solution!

The socks feature a number of elements custom made to make them more practical, durable and comfortable in a mining environment:

(1) Elastic at the top helps the sock stay up above the top of a gumboot or long boot

(2) Elastic section around the middle of the foot keeps it in place in your boot

(3) Thick, hard wearing material (and I’m told they’re made in st1:country-region w:st="on" New Zealand to ensure the quality)

(4) Sanitized to reduce foot odors etc

(5) Constructed to maximize moisture absorption

(6) Good cushioning under all of the foot

I’ve been trialing a pair the Miners Corp “Gumboot” socks for a few months now, with long lace up boots, gumboots, and short elastic-sided boots.

The material is holding up well despite the amount of wear I’ve been giving them, and the amount of times they’ve been wet and dirty. They fill my boot well but didn’t heat up my feet when it was warm. They seem to wash out well, and the elastic is all staying nice and tight to keep them up above the top of the gumboot (the way I like it!). In fact after a few months of wear they’re still as undamaged and tightly fitted as when I got them.

Overall, Miners Corp seem to have done a good job of designing a sock with the right features for mining environment for manufacturing impact crusher and other professional vibrating screen, and then gone and got them made out of some quality materials to make sure they’ll last. Let me know in the comments section below if you’ve tried them, and what you think of the idea – are there any other features they should have added?

There are few formal education requirements for new extraction workers, although a considerable amount of job training and experience is needed before workers can perform most duties or advance to more skilled positions. Skilled maintenance and construction workers usually need several years of vocational training in their field, while workers in professional occupations need at least a bachelor"s degree.

Workers in extraction occupations usually must be at least 18 years old, be in good physical condition, and pass a drug test. A high school diploma is not necessarily required, but is usually preferred; some companies also require workers to pass a basic skills test. Most workers start as helpers to experienced workers and learn skills on the job; however, formal training is becoming more important, as more technologically advanced machinery and methods are used. Given the increasing complexity of operations and the sophisticated nature of technology used today, employers now demand a higher level of skill and adaptability, including the ability to work with computers and other more complex equipment. As a result, some employers prefer to hire recent graduates of high school vocational programs in mining or graduates of junior college or technical school programs in mine technology. Such programs usually are found only at schools in mining areas.

Because of the unique dangers in mining operations, workers also need extensive safety training. The Federal Mine Safety and Health Act of 1977 mandates that each U.S. mine have an approved worker training program in health and safety issues. Each plan must include at least 40 hours of basic safety training for new miners with no experience in underground mines, and 24 hours for new miners in surface mines. In addition to new miner training, each miner must receive at least 8 hours of refresher safety training a year, and miners assigned to new jobs must receive safety training relating to their new task. The U.S. Mine Safety and Health Administration (MSHA) also conducts classes on health, safety, and mining methods, and some mining machinery manufacturers offer courses in machine operation and maintenance as well. Increasingly, mines use more high-tech tools for miner training, such as machinery simulators and virtual reality simulators. By simulating actual mine conditions and emergencies, mine workers are better prepared and companies can instantly assess a mineworker"s progress and skills.

As workers gain more experience, they can advance to higher paying jobs requiring greater skill. A mining machine operator"s helper, for example, might become an operator, or a roughneck may become a derrick operator. Due to the extreme environment and critical nature of the work, offshore oil crews generally are more experienced than land crews. Many companies will not employ someone who has no knowledge of oilfield operations on dryer machine and ore beneficiation machine manufacturing to work on an offshore rig, so workers who have gained experience as part of a land crew might advance to offshore operations. Positions are usually filled on the basis of seniority and ability. Miners with significant experience or special training also can become mine safety, health, and compliance officers, whose duties include mine safety inspection.

Environmental concerns will continue to affect mining operations. Increasingly, government regulations are restricting access to land and restricting the type of mining that is performed in order to protect native plants and animals and decrease the amount of water and air pollution. As population growth expands further into the countryside, new developments compete with mine operators for land, and residents are increasing their opposition to nearby mining activities. These concerns, together with depletion of the most accessible coal deposits in the East, will result in a shift in coal production. Coal mining will increase in the Central, and particularly the Western, United States and decrease in the East. Overall, coal mining employment is expected to grow by 4 percent as rising demand for coal is coupled with limited productivity gains from more efficient and automated production operations.

Employment in mining for metal ores is expected to decline by 10 percent through 2018. Because metals are used primarily as raw materials by other industries, such as telecommunications, construction, steel, aerospace, and automobile manufacturing, the strength of the metal ore mining industry is greatly affected by the strength of these industries. Most metals are sold and bought in a world market, so demand stems not only from domestic industries but also from fast growing industries in developing countries. Demand from these countries has caused prices for many metals to increase substantially in recent years. This has caused st1:country-region w:st="on" U.S. mining companies to expand production at existing mines and restart production at some mines that were closed when low metal prices made them unprofitable. However, in the long term the potential stabilization of prices together with many of the same environmental concerns as in coal mining will cause employment in metal ore mining to decline.

Nonmetallic mineral mining should experience little change in employment. Although demand will continue to increase for crushed stone, sand, and gravel used in construction activities, advances in mining technology will require fewer workers for operation and maintenance of new mining machines. Like the metal ore mining industry, the nonmetallic mineral mining industry is influenced by the strength of the industries that use its outputs in the manufacture of their products. Nonmetallic minerals are used to make concrete and asphalt for road construction and also as materials in residential and nonresidential building construction.

Transportation costs for stone, sand, and gravel are high, so mining of these materials is spread across the country, making it not as susceptible to industry consolidation. This geographical spread, together with the small size of many mines, also causes some mines to operate only during warm months. Many workers laid off during the winter find jobs in other industries and must be replaced when the mines reopen. Jobs in nonmetallic mineral mining attract many migrant workers and those looking for summer employment.

Despite an overall decline in mining industry employment, there will be job opportunities in most occupations due to the need to replace workers who leave the industry. A large number of workers, particularly in the professional occupations, will become eligible for retirement in the coming years, and some companies may have trouble coping with the loss of many experienced workers to retirement at a time when the industry is expanding production on dryer machine and ball mill machines. At the same time, past declines in employment in the industry have dissuaded potential workers from considering employment in the industry, and many colleges and universities have shut down programs designed to train professionals for work in mining. Employment opportunities will be best for those with previous experience and with technical skills, especially qualified professionals and extraction workers who have experience in oil field operations and who can work with new technology.

Employment in mining is projected to decrease. The growing U.S. and world economies will continue to demand larger quantities of the raw materials produced by mining, but the increased output will be able to be met by new technologies and new extraction techniques that increase productivity and require fewer workers. Wage and salary employment in mining is expected to decline by 14 percent through the year 2018, compared with 11 percent growth projected for the entire economy. Mining production is tied closely with prices and demand for the raw materials produced, and as prices for oil, gas, and metals have risen rapidly in recent years, production and employment in the industry have also grown. In the short term, employment may fluctuate due to changes in prices, but over the course of the projections period, technological advances will increase productivity and cause employment declines in the mining industry as a whole.

Petroleum and natural gas exploration and development in the United States depends upon prices for these resources and the size of accessible reserves. Stable and favorable prices are needed to allow companies enough revenue to expand exploration and production projects. Rising worldwide demand for oil and gas-particularly from developing countries such as India and China-is likely to cause prices to remain elevated and generate the needed incentive for oil and gas producers to continue exploring and developing oil and gas reserves. U.S. reserves of oil and gas should remain adequate to support continued production through 2018. However, environmental concerns, accompanied by strict regulation and limited access to protected Federal lands, also continue to have a major impact on this industry. Restrictions on drilling in environmentally sensitive areas and other environmental constraints should continue to limit exploration and development, both onshore and offshore.

In addition to resource availability, new production technologies also will impact employment in the industry. New drilling and extraction techniques allow for more efficient production from a reduced number of drill sites. As a result, employment in oil and gas extraction is expected to decline by 16 percent through 2018. However, changes in policy could expand exploration and drilling for oil and natural gas in currently protected areas, potentially boosting employment. Demand for coal will increase as coal remains the primary fuel source for electricity generation. Although environmental concerns exist regarding coal power-burning coal releases pollutants and carbon dioxide-few alternatives exist on a scale large enough to meet the fuel demand of utilities. Natural gas burns cleaner than coal, but coal power plants manufacturing hammer crusher and professional rotary kiln machines equipped with scrubbers reduce this disadvantage, and natural gas prices have been more volatile than coal prices in recent years. Future increased use of nuclear power or renewable energy sources, such as solar or wind power, could reduce demand for coal, but over the projection period neither is expected to increase rapidly enough to contribute significantly to U.S. energy supplies.

How are governments laying down the law to ensure health and safety in the mining industry? Joseph A. Main, Assistant Secretary of Labor for the Mine Safety and Health Administration (MSHA), talks to Sarah Blackman about the US Department"s policies and what lessons his fellow politicians have learned from recent global mining disasters. We"ve heard from several global mining conglomerates about how they are implementing important strategies into their sites to ensure their staff is protected from harm. Over the years they have acquired modern technologies and equipment to prepare workers for potentially dangerous situations and introduced multi-gas monitors, hazard detections systems and intelligent mine management software to decrease the risk of a life threatening event.

But, what are governments doing to improve health and safety in the mining industry? US mining spokesman Joseph A. Main explains how his government is guiding workforces to prevent future mining disasters and provides details on the policies being enforced in the country to make sure miners are held accountable for violating critical safety standards. The history of mine emergencies has taught us that we can never be too prepared to respond to these life-threatening events. Despite the development of modern rescue equipment and techniques, gaps still remain that can hamper or harm a successful mine rescue effort. The Pike River mine disaster consisted of a series of four mine explosions. There has been much speculation about the cause of these explosions ranging from pumps, cables, collapse, lack of methane drainage and so on.

We will not know for sure until the mine investigation concludes and a final report is published. However, we know communications and power were knocked out. Mine operators must design mines to prevent these types of events, conduct risk assessments to identify hazards and make critical systems more resilient and redundant. The Copiapó mining accident in Chile involved the collapse of the one and only mine entry. The mine was located in a very remote area. Drillers and drilling resources had to come from great distances, some from the United States. A mine rescue capsule had to be fabricated in country to implement the escape. Lesson learned - mining companies must maintain at least two escape ways at all times (a requirement in the US). Drilling technology needs to be identified before an incident occurs and arrangements with drillers should be made in advance. Pre-surveying, matching important locations underground with markers on the surface, is essential.

During the last five years, mine safety has improved through, among other things, the implementation of the MINER Act, the use of impact inspections to target problem mines, a revamped pattern of violations programme and the Rules to Live By initiative. In fact, according to preliminary data, 37 miners died in work-related accidents at the nation"s mines in 2011, the year with the second-lowest number of mining deaths since statistics were first recorded. MSHA places a major emphasis on miner training and we have awarded more than $3m in Brookwood-Sago Mine Safety Grants since 2007. These grants are specifically aimed at providing the funding for education and training programmes to better identify, avoid and prevent unsafe working conditions in and around mines when manufacturing sand maker and other mining machines such as ore beneficiation equipment.

Many people might think of Genzink Steel as a local steel supplier, welding company and erector of steel frame buildings. That view would have fit the company up to the turn of the 21st century, but since then, the 50-year-old fabricator has shifted its focus more to companies outside the state and region in a range of growth industries.

“People would be surprised how much out-of-state and out-of-country work we do — and the companies we work for,” Ken Genzink, president of the company and son of founder Donald Genzink, told MiBiz in an exclusive interview. “We work with top-grade international companies.” The company got its start at the family’s farm in Holland, where it made clothesline poles and crates for hog farmers and performed welding jobs for customers around the area. He got its first big break making machine bases for Prince Corp. and others in the die industry. Building off that success and capitalizing on the manufacturing boom, the business started a structural steel division and had a part in the construction of many local plants, which led to additional contracts for maintenance and various steel items for the shop floor, ranging from bridge cranes to mezzanines, he said. “In the late ’80s and ’90s was when things really started to grow,” he said.

Another major shift, both in terms of industries served and how their partners with other companies, occurred when the company started building mining shuttle cars for Joy Mining Machinery, a major manufacturer of “the Cadillac of mining equipment,” said John Maxson, COO of this Steel and the manager of the shuttle car project. That he was able to meet Joy’s high standards of workmanship and on-time project deliveries led the Holland supplier to work with other segments of the mining industry. “They said that if you’re able to work with Joy, you’re the type of company we’d like to work with,” Maxson said, noting the project helped hem secure business with major public companies including the likes of Halliburton, FMC Technologies and Wärtsilä. It is now beginning to target private mining companies. “The focal point has been around our core competencies in heavy duty, complex fabrication. … The value we bring isn’t something they can get in their backyard, and that’s surprised us as the days go on. We ask ourselves, aren’t there someone between their local area and Holland that could do what we do? It’s a testament to the quality of people we have here, our discipline of process flow, and making and holding people accountable.”

He excels by delivering consistency on low- to medium-volume projects. Taking a page out of the auto industry, it aimed to deliver high standards for production in industries that did not normally demand such exacting quality, Maxson said. In many cases, they were leading their customers’ expectations higher, and that led him to be considered a preferred supplier-to the point where customers are looking to move new hammer crusher products to the company or place them there from other ore beneficiation machines suppliers.

Coal mill plays an important role in the coal-fired power plant. The other type of coal mills are grinding mill. The coal gradually breaks into powder. The outlet of the mill includes a blower that blows the fine powder up to the boiler furnace.

After the coal has grind to micro powder, it will transported to boilers via a round pipe. The crushed coal is conveyed using primary combustion air into the furnace side of the boiler. The coal powder is feed into the coal mill through a central inlet pipe where gravity is used to lead the coal to the bottom of the coal mill, where the grinding table and heavy rollers of coarse powder pulverizes or micro powder grinding mills pulverizes the coal to particles. The air flow is fed through the mill with the purpose of heating and lifting the coal particles out of the coal mill and into the boiler furnace. Though coal has many usages such as gasification, liquefaction, ethanol production, the major usage is used as fuel and coke. In order to make full use of coal and reduce the pollution of the environment, after the coal have been mined, people usually crush the larger coal block to small one by coal crushing plant, use coal mill or coal pulverize to grind the coal.

Coal Crusher is acknowledged in coal processing industry for a long time. Hongxing Machinery has many years manufacturing experience in coal crushing plant (coal crushing process, washing plant and conveyor equipment). Hongxing Machinery is a major coal crusher supplier for power plants and coke ovens, crushing limestone for blast furnaces, and crushing a wide range of raw and manufactured materials for industry. As the largest exporter in the design and manufacture of coal crushers and spare parts, Hongxing crushers are used in a wide variety of material reduction and processing applications in 100 countries around the world. As coal powder is the most important fuel in the power plant, the plant owners need coal mill or coal pulverize to grind the coal to micro powders. Raw coal (crushed) is fed through hopper at the top of the coal pulverize and falls down to grinder ring to be pressed, crushed and milled into pieces by rollers. After the first crush, coal powder fall into the second and third layer. The pumping of the high-pressure centrifugal blower put the outside air into the coal mill. The coarse coal powder will be brought into the classifying machine. In the coal crushing plant, coal crushing can resize the coal stone so that it can be easily handled and processed. For the Mesh hardness of coal is usually under 5, the miners can use jaw crusher, JC jaw crusher, impact crusher, and hammer type crusher etc. to handle it. After the coal has been crushed, we need screening equipment to grade the coal by size and then transport the coal via conveyors. In this process, dewatering screen is optional to remove water from the product.

Dry magnetic separating equipment is commonly used iron and manganese equipment, mainstream intensity of mineral processing equipment. This machine used for dry magnetic separation of magnetic minerals beneficiation machinery, as opposed to wet one to use when sorting mineral liquid as a diluent to improve separation efficiency, the equipment is required to be separation of the mineral drying, particles can move freely, into independent free state, otherwise it will affect the magnetic effect, or even result in non-separation of the consequences. Dry magnetic separating machine is used for particle size below 3mm magnetite, pyrrhotite, roasted ore, limonite and other materials, wet magnetic separation, but also for coal, non-metallic minerals, building materials and other materials in addition to iron work.

Germany Coal washer is an important washing machine in coal washing process. We know, when the raw coals are mined from underground, they need to pass some coal working procedure so that coal can be used in our modern life. Coal washing is an essential pre-process of coal cooking. Coal can divide into raw coal and clean coal. Raw coal is generally used as fuel for energy, clean coal or fine coal is used for coal cooking. Clean coal should be washed with water to sulfur, to impurities and other industrial processes, in order to achieve the criteria used coke. Germany Clean coal needs to be washed with water to sulfur, to impurities along with other industrial processes; to have the criteria used coke. So, coal washer also known as coal washing machine plays a crucial role within this coal processing. Clean coal ought to be washed with water to sulfur, to impurities along with other industrial processes, to have the standards used coke.

How is the washer machine is installed and debugged?

1. Motor should outfit rain shelter to protect equipment from creep age.

2. Sand washer ought to be installed on the rear of vibrating screen. The rotary direction must strictly according to the requirement.

3. Check every connective bolt has been fastened before trial run.

4. Check every movable part continues to be lubricated ahead of when trial run.

5. Drive belt pulley run by man before trial run. Make sure there are not any blocks along the way of working, then user can transport on blank test. During two hours there aren’t any striking, pulley swinging and bearing loosen occur as well as the bearing temperature rise cannot exceed 35 centigrade. In the event the above trouble occurs, please stop machine immediately and check it.

6. The machine needs to be installed on the reinforced concrete. Beside this, machine users have to develop a concrete sedimentation basin to handle the waste water. The waste water can be reused after precipitation. These techniques not just meet the environmental requirement but additionally reduce the sand’s cost.

7. Because this machine’s working place and conductor materials are contacted with water, so users must ensure the lead is insulated.

Innovation is the creation of better or more effective products, processes, services, technologies, or ideas that are accepted by markets, governments, and society. Innovation differs from invention in that innovation refers to the use of a new idea or method, whereas invention refers more directly to the creation of the idea or method itself.

In business and economics, innovation is the catalyst to growth. With rapid advancements in transportation and communications over the past few decades, the old world concepts of factor endowments and comparative advantage which focused on an area’s unique inputs are outmoded for today’s global economy. Economist Joseph Schumpeter, who contributed greatly to the study of innovation, argued that industries must incessantly revolutionize the economic structure from within, that is innovate with better or more effective processes and products, such as the shift from the craft shop to factory. He famously asserted that “creative destruction is the essential fact about capitalism. In addition, entrepreneurs continuously look for better ways to satisfy their consumer base with improved quality, durability, service, and price which come to fruition in innovation with advanced technologies and organizational strategies.

Machinery industry is one of the industries that directly related to the level of industrialization, China is already the mining machinery manufacturing, but the industrial power want to develop, needs to experience a very long time. Machinery industry is a pillar of the industry, is the state supported and promoted industry, and as the main industry of mining machinery, crusher machine industry benefit. Of course, our ultimate goal is hope China’s machinery industry can place on the international stage, but it also has a process, not unrealistic expectations, first need to gain a firm foothold in the domestic arena. Many factories engaged in the machinery industry in our country, between each other is fierce competition.

However, not all products are the same quality, this requires the investor to purchase equipment in the process of polish his eyes, choose the most appropriate equipment. Based on domestic, crusher manufacturers need to be actively looking for domestic tourists and put the main business on the domestic, while the object is to focus on some of the more remote areas in the country the development of relatively backward areas, these areas requires the construction of roads, railways and etc. some mountainous areas also need to develop their own mining, will required the jaw crusher, cone and hammer type crusher, ball mill and other stone crushing machines in great demand. Conclude, the development of any industry can not be completed overnight, as well as crusher industry, companies need to constantly adhere to a long time, slow accumulation of experience, do well the brand strategy, in the changing market occupied a large share.

Crusher has many different kinds. With so many devices, hammer crushing machines as infrastructure have a great impact on the project. Hammer rock crushing equipment must be commissioning after it is installed in order to avoid the shortcomings in the work process. Then, when the user receives the stone breaking machine should be checked, but which aspects we should mainly check?

Ensure that all loose bolts are tightened on a daily basis. If any bolt becomes loose it may create a more serious problem for you at a later stage due to the immense constant vibrations surging through the machine. The following bolts should be checked on a daily basis when carrying out maintenance: skid frame, all mounting bolts, main frame cheek plates, toggle plate tension bolts and many others.

Lubrication is a very important step in maintaining the health and efficiency of your jaw type crusher. The labyrinth seals and bearings need to be greased as per the manufacturer’s recommendation. Read your machine manuals thoroughly to ensure you are familiar with the greasing requirements. Greasing the bearings when they are still warm will assist with the flow of the greasing into the bearings. Always check the V-belts of your jaw breaking machine, namely in the crusher drive motor and the feeder drive motor. Re-tension the belts if necessary.

Check the jaw crusher’s closed side setting (CSS) daily as this will affect the production output. Also, make sure you keep an eye out for any cracks you may find on the toggle plates when performing this maintenance. This machine is relentless crushing machines that tirelessly and effortlessly perform hour after hour. However, a machine only runs and works as well as it is maintained. Maintenance should be performed when required and is a critical step in maintaining the throughput levels of your asset.

The foundation drawing that the manufacturer supplied. Only mean the placement of crusher and motor. Users with reference to the drawings combined the actual situation to design the installation plans. Jaw crusher should be installed on concrete foundation, you should consider the discharge position when design.

To reduce the vibration, in order to avoid the vibration that the crusher machine working produced effect the construction. Between the local and the concrete foundation you should embedded in hardwood base plate or other relief vibration material. In installation, the center of the motor and the rotor shaft should be ensured straight. The transmission of cone crusher is on the right of the machine. But its position can be changed according to the actual needs.

The Environmental Protection Agency (EPA) has been dragging its feet deciding whether or not to truck fresh water to residents and determining whether or not the town’s drinking water contains toxic level chemicals. As the mining machinery industry has more serious overcapacity, the phenomena that the high pollution and high energy of backward productivity and advanced productivity compete for raw materials and market exist in varying degrees, caused a serious waste of energy resources and environmental pollution can not be ignored. In terms of the important symbol of a country’s industrial strength-crusher machine, because it plays an important role in national economy so as a major alteration target.

For those unfamiliar with the hydraulic fracturing, or the more commonly known fracking, process, it involves pumping water, sand and chemicals into deep methane-rich shale formations underground to release natural gas. According to the U.S. Energy Department, fracking accounts for about a third of the st1:country-region w:st="on" U.S. gas supply, which is a 14 percent increase from 2009 figures. The Obama administration has advocated for fracking in the st1:country-region w:st="on" U.S. to release the nation’s natural gas, thus reducing the nation’s dependence on foreign oil and coal which has a long list of harmful effects.

At present, in our country’s mining machinery industry more mature are mining machinery, beneficiation equipment, crushing and grinding machine, sand making device, ore washing equipment, screening machine, driving machine for mining, mining loading and accessory equipment and other equipment. But in the market for small scale mining machinery factory, because of its small production scale, low productivity, coupled with cannot adapt to the supply requirements after the integration of resources, this is the main reason to cause our country’s mining machinery excess production capacity. Long-term business, not only waste a lot of raw materials, but also for energy saving and emission reduction cannot control. Long-term development will not only cause decline in company benefit, but also have adverse consequences for countries implementing energy-saving and emission reduction. As the country put on the agenda of mining machinery industry energy-saving and emission reduction, while eliminate backward production capacity is also a matter of time.

Aiming at the enterprise product structure adjustment and technical innovation, famous mining machinery, crushing and grinding machine, ore dressing machines manufacturer-Hongxing Machinery in the face of energy-saving and emission reduction and eliminate backward products doing extremely well. We bravely give up on high cost of production, high energy consumption, low production of small type jaw crusher, impact crusher and other equipment production, and continuously improve the production capacity of large models equipment.

At present, the competition of the crusher manufacturing industry market in st1:country-region w:st="on" China is very extensive, including chemical, mining, construction, water conservancy, metallurgy, coal mining, glass and other industries. With the increasing market demand, the service life of the stone crushing equipment determines the efficiency of project, thus in order to meet the demand of mining machinery manufacturers, our company with high chromium cast iron and low whole magic material which increases the life of the crusher product.

1. The jaw plates of jaw type crusher with great usage and wide applications. Our company use the composite technology combines high hardness, high wear resistance of high chromium cast iron and low combined with all magic, in order to improve the wear resistance of the jaw plate. Mainly used for crushing the medium hard materials, the life is a high-manganese steel jaw plates 2.5 times.

2. The spare parts on the material use the high chromium cast iron, in casting process use the controlled solidification techniques; make use of the compound modifier for modification, grain refinement, increased toughness, improve the morphology and distribution of the carbide, so that the carbide growth direction perpendicular to the wear surface. Heat treatment using the optimal heat treatment process, the casting with high hardness, toughness and great impact resistance. In the gravel area, our company developed a large impact crusher flat hammer, by the user testing, the utilization ratio of equipment improved.

3. The spare parts of cone crusher. After three years of research and development, our company constantly improving technology, adjusting the composition, produces a variety of cone crusher liners. Crushing wall, concave using the modified high-manganese steel to product, due to the change of the cavity of the crusher to reduce the wear, the life compared to traditional materials can be increased by 20% to 35%, the price is cheaper than imported spare parts, the range of cost performance increased.

4. The hammer of composite crusher. Hammer handles using the low alloy, high strength and high toughness; hammer use of the wear-resistant materials, give full play to the advantages of two materials, make use of the composite technology to combine the two together, expanding the application scope of high wear- resistant materials, so that increase the working life.

5. The spare parts of hammer crusher. Cement industry commonly used the hammer crusher hammer made of the vanadium-molybdenum alloy which is the high wear-resistant materials. Its refinement, small columnar grain, spherical carbide so that the performance was further optimized.

Some market competition stronger consciousness in the enterprise, the constant development of new technology, a target on the domestic high-end users and products based on the components and independent production, in export trade friction constant international situation, domestic equipment and parts will naturally and foreign competitors and suppliers according to force fight. So crusher in the future development gravity of the center in the revitalization of mechanical constantly shifting to the base technology and basic parts, in order to improve the independent research and development up manufacturing level.

The overall size of the mechanical manufacturing industry in our country has broken into international production country ranks, as our country mining machinery industry of constant exploration and innovation,the whole competition and development has been basically in the future which close to manufacture level of developed countries .

China manufacturing industry market is very wide, including chemical industry, mining, construction, water conservancy, metallurgy, coal mine, glass, and other industries. In China"s most important application fields are cement industry, mining, application and pave in this send several industry of the whole industry accounts for about the crusher of around 30%.

According to the different grinding process and the grinding characteristics of different positions, there sets a Archimedes spiral enhance lining plate and a double curved surface lifting grading lining plate with different lifting force on the high efficiency and energy saving ball mill. It sets an efficient combined compartment in tube for inner classification, which forms the unique properties of the balanced powder abrasive flow and it provide a activation loop in a fine grinding barn, which strengthen the grinding function.

It can automatic tracking the variation of the motor speed control inverter by the detecting the changing current of the motor rotor loop which is processed by the computer when the current flow through the control center. The control converter change the alternating current with a frequency of 50HZ into a same electric potential with the current frequency of asynchronous motor rotor.

It sets machinery, electronics, micro-computer control in one through the large capacity high voltage intelligent reactive power compensation of frequency control technology applying in energy saving ball grinder, which realizes the reactive power compensation of the tube mill power drag, automatic diagnosis and repair fault, realize the grinding efficiency, low power consumption by the use of the programmable intelligent.

The grinding process is high power consumption, and it is the essential department in aerated concrete equipment. The building industry promotes the development of aerated concrete industry, as well as stimulates the widely use.

In your whole life especially when you are young, you must be dying to know which is the most suitable dryer when you want to start a mining business. Because a reasonable selection of drying plant can save investment, reduce running cost to ensure product quality, get the maximum economic benefit. The ideal selection must be according to user"s conditions and material"s factor, having the stress to find the most suitable model for you materials.

Coal slime dryer equipment mainly consists of draft fan, scattered, belt device feeder, feeding machine, rotary roller, heat source, belt discharging machine, unloaded feeder and distribution ark to form.The work area consists of guide material area, lift up the stripper plate area, the material discharging area and clean up area.

The refractories is the key factor to extend the service life, the use length of refractories directly affect the rotary dryer"s availability.If frequently stop refractory kiln lining, it not only increased overhaul strength, but also affect its normal operation, increasing manufacturing cost, bringing huge economic losses. The service life of the refractory materials mainly depends on the operation status, the corresponding process, as well as refractory material selection, the right building method. Properly laying refractory materials will be the key to the service life, not only be helpful to prolong service life, still can eliminate this should lead to premature damage to some of the stress; The wrong laying method can greatly shorten the refractory materials using life.

Wet coal is already low moisture loose state and don"t have the binding phenomenon in this area.After heat transfer, coal slime reach the demand water moisture, then goes to the next material area. Wet coal slime in cleaning area is copy plate start to copy form curtain material condition.Material falls easily formed wall binding phenomenon. In the cleaning up area, for mechanical design having cleaning device, cleaning device reasonably cleans material adhesion on the wall. In the process, cleaning device also plays materials group ball agglomerate crushing effect, which increases the heat transfer area, improves drying rate

In the construction site inspection, we often find the anchor is not firmly welded, sometimes even appear off phenomenon with a feet touch, if that is not handled in time, it will appear that large area pouring materials chunks in the production. It can cause accidents. In the process of daily work, we should be strictly to the rotary dryer reviews, solve the problems in time, increase production efficiency, bring benefit to the company, as well as increase safety insurance.

New-energy vehicles have been made exempt from the annual vehicle and vessel tax, the Ministry of Finance announced yesterday, as part of the government"s effort to boost the use of green vehicles in China.

"The move indicates that the government is hoping to guide consumers toward purchasing low energy consumption vehicles, and shows a supporting attitude to China"s new-energy auto sector," Zhang Yu, managing director of Shanghai-based Automotive Foresight Co, told the Global Times yesterday. However, Zhang noted that the vehicle tax for cars with engine capacities of up to 2.0 liters (accounting for the majority of domestic cars) is only some 400 yuan ($63.38) each year, which means the policy may not be a very strong stimulus for sales of new-energy vehicles.

Currently, new-energy cars are still not widely accepted by Chinese consumers. In 2011, only around 8,100 new-energy vehicles were sold nationwide, compared with a total of 18 million vehicles sold in the domestic auto market during the same year. Earlier this week, the Ministry of Science and Technology released a five-year plan to guide the development of the country"s new-energy vehicles. The plan said that electricity-powered vehicles will account for a majority of new-energy vehicles by 2020.

However, analysts noted that progress in battery technologies and construction of charging stations will be vital for domestic new-energy producers, and it remains unlikely that the sector will gain a strong foothold any time soon. "A car battery can only last for cruising 300 to 400 kilometers, which will be very inconvenient for consumers if there are not enough charging stations. Besides, an electricity-powered car and hammer crusher may cost twice the price of a regular car, something that has put off many consumers," said Zhang. Zeng Zhiling, an auto analyst at Shanghai-based LMC Automotive, said that a reduction in the vehicle purchase tax, which currently accounts for 10 percent of a car"s price, would serve as a much more effective incentive for the sector.

Zeng noted that it is still hard for new-energy vehicles to get accepted by most consumers, and that to reduce prices and improve sand maker technologies will be the key factors for further development in the sector. "New-energy automobiles might at best manage to gain a 4 percent market share in the domestic auto market by 2020. It would be better for the government to first introduce new-energy vehicles in the public transportation sector, instead of trying to boost consumption among regular consumers," said Zeng.

The history of Chinese cuisine stretches back for many centuries and produced both change from period to period and variety in what could be called traditional Chinese food, leading Chinese to pride themselves on eating a wide range of foods. Chinese people feel very proud of their various kinds of dishes. Diet is one of the most important factors in Chinese culture. There are eight cuisines in China including spicy Sichuan cuisine and light Cantonese cuisine and Chinese restaurants enjoy wide popularity all over the world. These styles are distinctive from one another due to factors such as available resources, climate, geography, history, cooking techniques and lifestyle. One style may favour the use of lots of garlic and shallots over lots of chilli and spices, while another may favour preparing seafood over other meats and fowl. Jiangsu cuisine favours cooking techniques such as braising and stewing, while Sichuan cuisine employs baking, just to name a few. Hairy crab is a highly sought after local delicacy in Shanghai, as it can be found in lakes within the region. Beijing Roast Duck (otherwise known as "Peking Duck") is another popular dish well known outside of China. Based on the raw materials and ingredients used, the method of preparation and cultural differences, a variety of foods with different flavours and textures are prepared in different regions of the country. Many traditional regional cuisines rely on basic methods of preservation such as drying, salting, pickling and fermentation.

However, the lifestyle of Chinese people is changing gradually, no matter having meals at home or dinning out, there have been brand new diet habits. For example, cheese and tomato ketchup sand maker are added into some traditional dishes and city consumers frequently visit some fast-food restaurant chains such as MacDonald’s, KFC and Pizza Hut. The market research shows that in the next few years, the consumption of western fast-food in China will keep increasing at the speed of over 45% every year while the number of Chinese fast-food restaurants is expected to increase by 15%.

People’s income is increasing constantly, and many people know more and more about international food combined with the convenience of supermarket shopping impact crusher so that a new generation of consumers that prefer to try packaged and battled food appeared in China. With the fact that more and more households have fridges and constant increase of frozen food in the supermarket, everything that you need ranging from quick frozen dumplings to fried chips can be found in the supermarket. In addition, green and organic food also shows in the shops in the big cities while the price is more expensive compared with traditional food. Because of the change of lifestyle, more and more Chinese people are not willing to purchase food every day, which makes packaged food more easily for the common people to accept. More and more people having cars and new city districts springing up, supermarkets are becoming more and more popular.

With the repeating turning up of the problem on the quality of the houses, people are paying more and more attention to the question of housing quality. The construction of security housing has strict quality surveillance, and the so called “exterminating the problem on the source” refers to the three backbones that guaranteeing the quality of the houses, which is reinforcing steel bar, cement and concrete. And the government should strictly control the quality problem of the three pillar industries; put an end to the incident matters like cheating on workmanship and materials and let people live at ease in the room.

In recent years, our country has issued the related policies and regulations with regard to the construction of security housing in order to strengthen and specify the distribution and management of security housing. Various regions also gradually establish and perfect the application and examination systems and promote the smooth progress of the construction of security rooms. According to the relevant information, in the past year, the actual construction of such houses was 10.43 million sets, and basically built 4.32 million set, thus completing the annual index. And this year, our country puts forward the new objective that new construction of guarantee room should be more than 7 million sets and basically completed more than 5 million sets.

All of the security rooms’ construction involves its raw materials--sand aggregate whose manufacturing has a direct link with crushing and grinding equipment. Now the excellent and professional crushers on the market in general are jaw crusher, impact crusher, cone type crusher and other few kinds. Every machine has its own advantages and unique characteristics so that the customers should purchase the equipment according to the yield to decide to buy what kind of equipment. Among them jaw crusher belongs to coarse crushing equipment, and also is the primary crushing equipment, and it is a kind of the most commonly used, the industries that has not very much demand for the grain size can choose such a machine. And one of the impact crusher belongs to secondary crushing and also fine crushing equipment, the aggregate manufactured by this equipment has the strongest ability to combine with the cement so that it is the perfect choice for building tall buildings in order to producing aggregate.

Pay attention to people"s livelihood and solve their difficulties and fundamentally serve them with the best for the people"s welfare!

South Africa"s gold industry has been the principal focus of black economic empowerment, resulting in a changing ownership structure. With the increase in the price of gold and the worldwide economic slowdown, investment in gold has increased, with investors seeking safe haven investments. Demand for gold also increased in 2009, particularly from India and China.

Up until a few years back, South Africa was the world"s largest gold producer. China surpassed South Africa as the world’s largest producer in 2007. China continues to increase gold production and remained the leading gold-producing nation in 2009, followed by Australia, South Africa, and the United States. According to the US Geological Survey, South Africa produced 210 metric tons of gold in 2009.

South Africa is estimated, by US Geological Survey, to have 6000 metric tons of gold reserves. 95% of South Africa"s gold mines are underground operations, reaching depths of over 3.8 km. Coupled with declining grades, increased depth of mining and a slide in the gold price, costs have begun to rise, resulting in the steady fall in production. The future of the gold industry in South Africa therefore depends on increased productivity.

South Africa"s enormous gold ore reserves represent a substantial part of the world’s reserves. The main gold producing area is concentrated on the Archaean Witwatersrand Basin. The Witwatersrand basin, which has been mined for more than 100 years and has produced more than 41 000 t of gold, remains the greatest unmined source of gold in the world. Major new projects, new technology, new approaches to the organisation of work, better labour relations and some commercial innovations are starting to reshape this industry.

Unlike most other gold deposits in the world, the Witwatersrand ("Wits") is a gold placer deposit, with gold being hosted by conglomerates and grits. The Wits sedimentary basin is massive and stretches through an arc of approximately 400km across the Free State, North West and Gauteng Provinces. The gold bearing conglomerates or reefs are generally tabular with varying dips. Most of the Wits basin is covered by later stage sediments of the Ventersdorp and Karoo groups, with the Wits outcropping in Johannesburg, which started the Wits gold rush over a hundred years ago and resulted in formation of the city of Johannesburg.

South Africa does have other smaller gold producers outside of the Witwatersrand, in the form of Archaean greenstone belts. The main gold producing greenstone belts are the Barberton Greenstone Belt and the Kraaipan greenstone belt. The Barberton greenstone belt is situated in the Mpumalanga province, just north of Swaziland. The Kraaipan belt is located west of Johannesburg, near Kuruman. Other smaller belts exist in the Northern Province, but have been worked sporadically.

Gold mining machine has an important role in gold mining industry. Hongxing Machinery is a professional gold mining machine manufacturer of gold ore crusher, ore gold mining crusher and gold mill machines. In gold mining, high technology gold mining equipment, such as gold detectors, elegant modern dredges, and lightweight sluices will be needed.

Gold crusher is also used as the primary crusher for crushing gold ore in gold ore crushing industry. Jaw crusher is the most used gold mining machine for crushing ore. It can reach the crushing ratio of 4-6 and the shape of final product is even. So they are widely applied to crush high hardness, mid hardness and soft rocks and ores such as slags, construction materials, marble, etc.

Gold mobile crusher is the newly type of gold mining machine for gold crushing. Gold ore mobile crusher can eliminate the obstacles of the crushing places and circumstances, and offer the high efficient and low cost project plants for the client. To the client, gold mobile cursher is the best choice as a gold mining machine.

Conventional wisdom holds that if one has nothing to hide, one has nothing to fear. The increasing ubiquity of unsleeping electronic eyes demonstrates that we all have something to hide, whether or not we believe it. Much of our daily lives could, when scrutinized without context, appear sinister or eccentric. This lesson has been learned the hard way by a still-anonymous (at time of writing) citizen of a town of France’s Maine-et-Loire region. A camera car operated by Google Street View, photographing the burg in question, happened to catch our man urinating in his front garden. The image has subsequently gone viral.

At this point, the only proper response is juvenile tittering, followed by sympathy. Such misfortune could have befallen any of us. Everybody-come on, we’re all grownups here-has taken relief in a location without a roof. In France, it’s indeed a cornerstone of the culture: This is the nation that gave us the purpose-built outdoor convenience called the pissoire impact crusher and professional sand maker. The sensible course for Street View’s inadvertent victim, who wasn’t the first, would have been to sportingly absorb the ribbing of his friends and wait for the online mob to be distracted by the next theremin-playing cat. Instead, incredibly, he has retained counsel and is seeking to force Google to remove the image. No matter that his face is blurred and that no one who didn’t intimately know the town of 3,000 people could possibly recognize him. He also wants €10,000 ($13,115) by way of compensation, which seems a low price to put on dignity, even for that of a Frenchman.

This appears an elementary failure to heed the Streisand Effect-the law which holds that attempting to suppress online information will inevitably result in its widespread dissemination. (The principle is named for Barbra Streisand, whose efforts to remove pictures of her Malibu home from the Internet made it one of the most famous dwellings in California). Perhaps the plaintiff is playing a cannier game. Before Street View’s car drove past, he was just a middle-aged Frenchman; had he not made a fuss, which is what he would have remained. However, in a world limitlessly willing to confer gratifying and profitable celebrity upon unlikely candidates, he might yet parlay this apparently idiotic lawsuit into chat show appearances, a reality show, and a branded range of bathroom appliances. From village idiot to global village idiot. He may not have known it at the time, but he was aiming at the stars.

Vertical mill is a large ideal grinding machine, and is widely used in cement industry, electric power, metallurgy, chemicals, and non-metallic mineral industry. It can grind coal, marble, granite, kaolin, hard coke etc. So it is also called vertical coal mill or vertical cement grinder.

When it is put into use, the materials to be grinded are put into the main frame through the feed-in bin on the side cover. Then it revolves round the vertical axis line by the milling roller hung on the star rack. With the centrifugal force by rotation, milling roller wings outside and presses fast on milling rings to make relieving tool carry materials between milling roller and ring, thus the materials are crushed by the rolling and milling of the milling roller.

Compared with ball type mill, what"s advantages of vertical coal mill ?

1. Low Investment Cost
This mill itself can crush, dry, grinding, classifying, so the system is simple, and occupation area is about 50% of ball mill system. In addition, it can be installed outside, so it will reduce a large number of investment costs.

2. Low Operation Cost
A. High efficiency: roller compacted materials directly onto the grinding disc, so power consumption is low. Compared with ball mill, it saves energy consumption by 30% ~ 40%.
B. Less wear and tear: As the roller is not in direct contact with the disc, and material of the roller and liner is high quality, so life lime is long.

3. High Drying Ability
As the hot air inside contacts directly with the material, drying ability is higher, and it saves energy. By regulating the air temperature, it can meet requirements with diffirent humidity.

4. Simple and reliable operation
A. It is equipped with automatic control systems, so remote control makes it easy to operate.
B. It is equipmented with one device,which prevents the roller from contacting with the liner directly, and avoids the destructive impact and severe vibration.

5. the stability of product quality
As the material stays in the mill for a short time, the Raymond mill is easy to detect and control the product particle size and chemical composition, to reduce duplication of milling, stable product quality.

6. Maintenance convenience
By repairing fuel tank, rotating the arm, it is fast to replace the roller sleeve, and liner, and reduce the downtime loss.

7. Environmental protection
It is with small vibration, low noise, and the overall sealing. The system works under negative pressure, so there is no dust going out. It meets the requirements of the state Environmental Protection.

The first requirement for a successful mine operation is a market for the product, metallic or nonmetallic. The second requirement is to deliver a quality salable product to that market for payment in an amount exceeding the cost of the operation. There are a vast number of mineral products, literally from A to Z, and there are an infinite number of ways to get them out of the ground and delivered in a form acceptable at the marketplace.

One may start by looking at what a particular industry needs, such as silica for glass or cement manufacture. Low-iron silica is desperately needed for making glass, and at least one California cement company would dearly love to see a prospector walk in the front door with samples from his nearby silica claims.

Another example, also nonmetallic, is bentonite clay, the water impervious material commonly mandated to line the floors, walls, and caps of landfill disposal sites. This material, which swells when wet, is extensively used in oil drilling mud. It frequently occurs along earthquake faults and it was along the Garlock Fault in Kern County that Joe Mathewson, a Los Angeles area resident, searched for the commodity in the 1980s. He found a suitable deposit on land next to Red Rock Canyon State Park east of Mojave. The swelling-type calcium clay was tested by independent laboratories and was determined to meet the low permeability specifications for landfill use.

Mathewson purchased the land, which had been actively mined during its pre-WWII years as the source of Old Dutch Cleanser kitchen and bath scrubbing powder. Over 120,000 tons of white, high-quality had been mined underground. It occurs as a layer over the pumicite, in places very close to the surface. The exposed edge of the clay overlooks Last Chance Canyon for thousands of feet. The layered beds in this portion of the Ricardo Formation dip twenty degrees northeast and plunge beneath Highway 14 to the north.

Mathewson had the pumicite tested for a variety of uses, such as an abrasive, a filler product, a pesticide carrier, and as a Portland cement additive. Investigations performed at the Mineral Research Laboratory, with the assistance of the Materials Testing Laboratory at California State Polytechnic University at Pomona, showed an increase in concrete strength using pumicite, but at an unacceptable cost.

Applications for a conditional use and operating permit for surface mining were submitted to Kern County and State of California officials in 1988 and after several revisions were approved in 1989. The Kern County Department of Planning and Development Services issued a Conditional Use Permit containing 46 major conditions required before, during, and after operating on the property. For several years truckload shipments were sent to an eastern market, but interest was weak. Meanwhile, the owner, determined to avoid capital expenses for equipment, located a contractor who would perform the necessary stripping and reclamation operations as needed, and truck the raw product to a distant mill for fine grinding. Removed overburden had to be carefully spread to conform to the existing topography and ground surface characteristics. In order to meet landfill specifications another contractor was hired to dry, crush, and vibrating screen by way of hammer crusher the on-site using a portable plant.

On those seldom-seen days in this region when the sun comes out, the inside passage of Alaska displays rare vistas that have been obscured by fog for weeks. Rainfall reaches 200 inches in some years. Sunny days thus would prompt me to lock the doors to the Alaska Territorial Assay Office and to venture alone into the far wilderness in my boat at high speed in my life-long search for gold.

Earlier years had been spent preparing for the quest, studying and working at the assaying, mining, and metallurgy of the precious metal in well-known mines and colleges of the American West. Alaska"s frontier became the forge which shaped my skills and individuality. The challenge to produce something useful to society from untouched regions went hand in hand with a concern for the undefended vastness and the impact mining activity might have on its grandeur.

My boat trip led from Ketchikan to all the land I could quickly reach by water. The arc of blue sky above me, the green adorning the land around me, the silvery darkness of the sea split by the arrow of the boat"s white wake, lured me far from my home port. The forests I reached had no human footprints or memory of them. Deer and black bear roamed these woods. The gray wolf was present but seldom seen. Sounds were of wind whistling through tall treetops, of water rushing to reach the sea, of the loon"s cry from its watery home, and of waves lapping against rocky beaches.

My only companion on these journeys was Duke, a Mackenzie husky of unfettered eagerness. With the boat beached or anchored nearby, Duke and I examined the exposed geology and rock along the shoreline. Inland exploration was hampered by the thick carpet of muskeg covering everything, including rock outcrops. The muskeg was a dense tangle of roots, vines, plants, bushes, leaves, and evergreen needles.

The banner year, the year of my find, was one of gradual, step-by-step success. The first indication was a pathfinder to gold rather than the mineral itself. I found pieces and chunks of white quartz on one bank of a river flowing into the salt water. Little vugs crushed by sand maker in the whiteness had a story to tell of former occupants long oxidized out of existence, departed metallic compounds often found with gold.

A mile into the Sitka spruce rain forest from the river, through devil" s club thorny growth and fallen five-foot-thick rotting trees, I found pieces of native gold lying on the rock shelf beside a log-cluttered stream. The loose nuggets and flakes and jaw crusher had washed down from the hillside or from upstream. Pieces of accompanying white quartz identical to those along the river let me know a vein existed someplace between the two waterways.

This mill is a kind of widely used mining equipment. The whole grinding mill is of a standing structure, features small occupying space and strong integration capacity. Raymond grinder is main part of the whole grinding machine; it is collocated with jaw type crusher, elevator, hopper, electromagnetic vibrating feeding machine, main unit, classifying equipment, collector, cloth deduster and high-pressure blower. Different Raymond grinder mills have different rollers, so the finished size is also different. Raymond grinder is applicable to the grinding and processing of more than 280 kinds of non-flammable and non-explosive materials with hardness less than 7 and humidity less than 6% in mining, construction, chemical industry and metallurgy, such as barite, calcite, feldspar, talcum, marble, limestone, clay, glass. The fineness of the finished product can be adjusted from 100 Mesh to 325 Mesh according to requirements. The product size is adjustable in the range of 80-325 (600 the largest) meshes. It is possible to product 30-80 mesh coarse powder through special device in the machine.

Maintenance of this equipment:

1. Staff who should be responsible for milling machine must have a certain level of technology. Before operating milling machines, the operator must carry out the necessary technical training so that they understand the principles of performance milling machine, and are familiar with the operating regulations.

2. In order to make mill powder machine normal work, should develop "the safe operation of equipment maintenance system", it can guarantee long-term security mill operation.

3. When Raymond mill powder machine has been used for a period of time, the overhaul should be carried out, while the Roller Mill Central blade repair, and other vulnerable parts replacement processing, roll grinding equipment in use around the nut on the bolt should be carefully examined to see whether there is a loosening phenomenon Lubricants whether additional foot.

4. When the mill powder machine grinding roll device use time is more than 500 hours, replace the grinding roll, Inner rolling must be cleaned, damaged parts of should be replaced timely.

How is it operated?

When it is put into use, the materials to be grinded are put into the main frame through the feed-in bin on the side cover. Then ball mill revolves round the vertical axis line by the milling roller hung on the star rack. With the centrifugal force by rotation, milling roller wings outside and presses fast on milling rings to make relieving tool carry materials between milling roller and ring, thus the materials are crushed by the rolling and milling of the milling roller.

As we everyone knows, in the using progress of screening machine, it"s necessary to maintain this equipment. Then what"s its maintenance, how will it have a long life? Here, engineers of Hongxing Machinery will give you some tips for its maintenance.

1. When disassemble the surface of precision parts, should be especially careful to protect these parts of surface to avoid damage.

2. Open the machine parts of surface which would be rust and intend to be stored outside of machine more than a few hours, must be well protected and coated with oil, or coated with rust inhibitor.

3. Disassemble the machine parts with bearing surface and machined surface, should lay a wooden plate on the ground to prevent a direct contact between precision work surfaces and ground.

4. Before equipping parts on screening machine should be cleaning and oiling in advance.

5. Percussion of hammer direct to parts is not allowed when loading and unloading process, there must be copper stick or other pad between hammer and parts. It should be special attention to the damage and cracks of casting parts because of percussion. Sometimes the cracks of these parts would exist after operation heating only.

6. When the bearing is damaged, it is best to replace two of bearing at the same time. If due to limited condition, can not replace both two of bearing, should disassemble all the bearing, clean them and then do the installation.

7. When install a new vibrating screen mesh, must make the connection between screen mesh and screen box angle steel or groove steel firmed, and tighten them.

Main characteristics of this equipment:

1. The side plate and the beam of ZSR hot ore vibrating screen are made of high quality and heat -resisting stainless steel and they are connected firmly by ring groove rivet. That"s all for the high temperature of those materials under screening.

2. Special equipment is designed to fix the screen plate in order to make it work normally under high temperature. It is characteristic by the firm structure, the stable performance, the low noise and the high efficiency

The above are the suggestions to the maintenance of vibrating screen for mining use. If you have other questions about the mining screens or crushing machines, such as jaw crusher, high frequency screen or powder-grinding machines and ore dressing machines, etc, please don"t hesitate to contact us, you will get satisfied answers.

The diamond is an extremely rare mineral composed of pure carbon. It is well known for its extreme hardness, brilliance, and thermal and electrical characteristics. Natural diamond has been discovered in approximately 35 different countries. Because of their beauty and physical characteristics, diamonds have been regarded as symbols of love, beauty and eternity. The following countries produce industrial grade diamonds: Australia, Botswana, Brazil, China, Congo, Russia and South Africa.

Because it is the hardest substance known, diamond will cut through any material. The principal use of diamonds is in jewellery with the market increasing over 250% over the past 15 years. However, not all diamonds are of gem quality, in fact most diamond deposits contain a varying proportion of industrial and gem quality stones.

Diamond crushing begins with the communition of extracted ore in preparation for further activities to achieve ore values. Crushing operations are designed to produce uniform size particles by crushing, grinding, and wet or dry classification. The capital investment and operation costs of milling equipment are high. For this reason, it is important for us to choose the suitable crushing equipment. Factors that decide the choosing of crushing machine include the value concentration of the ore, its mineralogy, hardness, and moisture content.

Crushing is a multi-staged process and may use dry or wet ore feed. Typically, primary crushing take place at the mine site. Primary crushing is accomplished by using jaw crusher or cone type crushers. Primary crushing yields chunks of ore ranging in size from 6 to 10 inches. Oversize material is passed through additional crushers and classifying equipment to achieve the desired particle size. The ore is then crushed and sized at a secondary milling facility.

Four have been killed so far and more than 54 injured in violence related to the strike at the operation, northwest of Johannesburg. Police dispersed miners gathering to protest last week by firing on crowds with rubber bullets. Shops were looted and roads blocked with burning tires. Impala will re-employ the dismissed workers under their former terms and conditions if they apply by 29 February, the company said. The workers won’t be paid for the days on which they were on strike, it added.

Hongxing Machinery, as a leading manufacturer of mining equipment, can provide you with high quality and low price stone crushing machine, powder grinding machine, and stone making machine and ore beneficiation equipment. As a professional manufacturer, our products have been exported to more than one hundred countries and were quite popular with them. If you have any needs about this, please let we know. We are looking forward to your cooperation.

A grinding mill is a kind of equipment designed to break a solid material into smaller pieces. There are many different types of grinding mills and many types of materials processed in them. Some grinding mill we often used are ball type mill, Raymond kind mill, high pressure suspension grinding mill, vertical mill and super thin grinding mill. The following are some detailed information about them.

Vertical mill is a kind of advanced mill which adopts top technology domestic and abroad based on many years’ mill experiences. It can crush, dry, grind, and classify the materials. This milling machine can be widely used in such industries as cement, power, metallurgy, chemical industry, non-metallic mineral. It is used to grind granular and powdered materials into powder.

The super thin grinding mill is mainly used in processing powder of mineral materials of metallurgy, building materials, chemical industry, mining, etc. This ultrafine mill can grind non-flammable and non-explosive materials with moisture less than 6% such as Feldspar, calcite, talc, barite, fluorite, rare earth, marble, ceramics, bauxite, manganese ore, iron ore, copper ore, phosphate rock, iron oxide red, slag, slag, activated carbon, dolomite, granite, iron oxide yellow, bean cake, chemical fertilizer, compound fertilizer, fly ash, bituminous coal, coke, lignite, Ling U.S. sand, gold, red mud, clay, Kaolin, coke, coal gangue, porcelain clay, kyanite, fluorspar, bentonite, muddy green rock, leaf wax rock, shale, purple rock, Diego rock, basalt, gypsum, graphite, insulation material, etc.

In order to make the size of molybdenum ore materials as fine as possible before entering into milling machine, the crusher must have an excellent fine crushing capability to reduce molybdenum ore size. To achieve this crushing effect, two grades of jaw crushing machine and one fine crusher (high thin breaker machine) are applied in the crushing process. Two types of jaw crushers are coarse and fine jaw crusher. Tertiary fine crushing machine is the key of the whole production line.

Vibrating molybdenum ore feeder is used to feed molybdenum ore evenly to molybdenum ore crushing and grinding machine. Jaw crusher is used in primary crushing station. It can crush molybdenum ore into smaller sizes. Thus, these small molybdenum ore can be fed into mill such as mill equipment for grinding. Impact crusher is generally used after jaw crusher, and can crush hard stones, not only the molybdenum ore, but also other ores such as copper, bauxite, antimony, Kaolinite, gold etc.

The grinding mill manufactured by our company is of high quality, low price, reliability, easy maintenance and so on. Our grinding mills are designed to bring your operating cost down. If you are interested in any kind of our mill, please feel free to contact us.

South Africa, Kazakhstan and Turkey are the world’s largest producers of chromite ore. While many minerals contain chromium, it is the only commercial ore mineral. It has several industrial end uses, primarily based on its Cr: Fe content. High chromium ores are used for producing ferro-chromium for metallurgical applications such as stainless steel (the most important application by volume (85%) and special uses (superalloys, special steels, plating). High iron chromitites are being used for the production of low quality ferro chromium, foundry sands, chromium salts (used in the leather tanning industry, as a pigment and in chromium plating) and refractory purposes.

The crushing process begins with the communition of extracted ore in preparation for further activities to achieve ore values. Crushing operations are designed to produce uniform size particles by crushing, grinding, and wet or dry classification. The capital investment and operation costs of milling equipment are high. For this reason, it is important for us to choose the suitable crushing equipment. Factors that decide the choosing of crushing machine include the value concentration of the ore, its mineralogy, hardness, and moisture content.

Crushing is a multi-staged process and may use dry or wet ore feed. Typically, primary crushing take place at the mine site. Primary crushing is accomplished by using jaw crusher or cone crusher. Primary crushing yields chunks of ore ranging in size from 6 to 10 inches. Oversize material is passed through additional crushers and classifing equipment to achieve the desired particle size. The ore is then crushed and sized at a secondary milling facility. Secondary milling (comminution) further reduces particle size and prepares the ore for beneficiation processes that require finely ground ore feed. The product gold from this additional crushing is usually less than 1 inch (1/2 to 3/4 inches). Secondary crushing, if necessary and economical, is accomplished by using standard cone type or impact type crusher.

Subsequent fine grinding further reduces the ore particles to the consistency of fine powder (325 mesh, 0.0017 inches, and 0.44 microns). The choice of grinding circuit is based on the density and hardness of the ore to be ground. Ball grinder was used as ore grinding mill. Vibrating gold feeder is used to feed ore evenly to crushing and grinding machine. Vibrating gold screen is the screening machine. It screens out the appropriate chromite ore particles, these particles enter into ball grinder for grinding.

As the professional manufacturer of complete sets of mining machinery in mining industry, SBM is always doing the best in products and service.

GP Series cone type crusher adopted the first class crusher design and crushing technology. As a result, the GP Series offers a few outstanding features that enable you to work efficiently in any secondary, tertiary or quaternary crushing application. After taking a closer look at the GP Series crusher, you will be sure to find a GP Series cone breaker ideally satisfy your crushing need.

The compact size and low weight contributes to a high crushing performance, making the Nordberg GP Series crushers highly popular world wide. Several thousands of GP Series gyratory crushers are working around the globe today, a testimony to their first-class reliability and versatility.

The whole range of the GP cones enjoy a global Hongxing Machinery pre and after sales product support including process simulation and planning services, and a comprehensive range of OEM wear parts.

The crusher company plans to construct a quarry to satisfy the needs of creating stone materials within Malaysia. Our company supplies the entire crushing plants as well as service.

The complete crushing plant are utilized to crush large rocks into little size or fine sand for construction along with other purposes. The uncooked stones of quarry tend to be mostly lime stones. The project may be the broad heading. The capability of crushing should be up to 800 — 1000 TPH. And its purpose would be to provide the creating aggregates and sands with regard to infrastructure.

Advanced automation, easy adjustment along with a limited number associated with maintenance points help to make the Nordberg Series really friendly for that operator. The automation program helps the operator to obtain the right crusher settings quickly. You need much less human surveillance throughout crushing.

Hydraulic adjustment from the crusher is secure and fast, and can be carried out continuously under mashing load. For support, GP cones could be dismantled completely in the top. Changing of the liners doesn’t need any backing materials because of the machined put on parts.

Continuous research as well as product development has cheated the simple idea of the floating base type design to make sure reliability. The exceptionally large diameter from the main shaft and also the heavy-duty mainframe make sure robustness. Automation is standard of all GP cone crusher, which contribute significantly in order to ensuring the unit’s dependable operation.

For to higher serve Malaysia clients, Hongxing will set up Malaysia office within 2008, if you need to buy jaw crusher or even get cone crusher costs, please contact all of us. We are here to assist your business.

We can supply any type of used ball grinders for the food, chemical, mining, pharmaceutical, sugar, oil processing, marine, waste water treatment, rendering, environmental, industry and process industries. Used, industrial and commercial mills include pebble mills, slag mills and more. Crushers and mills are used to reduce chemicals, materials or other products to a desired particle or aggregate size range.

This mill machine is the most effective Industry mills for batch-wise, rapid comminution of medium-hard to very hard samples down to the finest particle sizes. The grinding can take place dry or wet. Grinding sets of many different materials are available. The mills can also be used for mixing and homogenisation.

As a professional mill manufacturer, the industry ball grinders manufactured by Hongxing Machinery are of reliable structure, stable running, high efficiency and energy-saving. Its application is pretty wide such as the cement, silicate products, new building material, refractory material, chemical fertilizer, and chemical industry, black and non-ferrous metal beneficiation and glass-ceramic production industries. The products are used to wet grinding or dry grinding of various ores and other grind able materials.

Ball mill is used to grinding various ores and other materials, and tube ball mill is widely used in mineral processing equipment, construction and chemical industry and other national economic departments. This equipment is used to grind ore and other material with different hardness by drying method. They are the main powder grinding equipment widely served in metal ore dressing, building material industry and chemical industry. It gets its name for installing discharging grid plate at the discharging end. The equipment consists of driving part, rotating part, main bearing, feeding and discharging part, lubrication part and electric control part.

This equipment is the key equipment for re-grinding materials after the primary crushing. The application is quite wide such as cement, silicate, products, new building material, refractory material, chemical fertilizer, black and non-ferrous metal beneficiation and grass-ceramic industries. It can be used to wet grinding or dry grinding various ores and other grind able materials. According to the material and ore discharge pattern, the vertical Raymond mill equipment can be chosen as wet type grid ball mill equipment and dry type grid ball grinder equipment.

This ball mill is horizontal type and tubular running device, has two warehouses. This machine is grid type and its outside runs along gear. The material enters spirally and evenly the first warehouse of the milling machine along the input material hollow axis by input material device. In this warehouse, there is a ladder scale board or ripple scale board, and different specification steel balls are installed on the scale board, when the barrel body rotates and then produces centrifugal force, at this time , the steel ball is carried to some height and falls to make the material grinding and striking. After grinded coarsely in the first warehouse, the material then enters into the second warehouse for regrinding with the steel ball and scale board. In the end, the powder is discharged by output material board and the end products are completed.

Simplicity is the key to tilt-up concrete construction. Panels are cast as near to their final position as possible-the most convenient casting base is most often the concrete floor slab of the building. Wood or steel edge forms are prepared and positioned on the casting base. Reinforcing steel, vapor seal, insulation, door and window frames, electric conduit, and outlet boxes are then positioned. Wall panels are cast on the horizontal base, cured, tilted into a vertical position and moved into place with a mobile crane.

It is believed to have been developed in the early 1900s. Records indicate that Robert Aiken, an Illinois contractor, used tilt-up methods to build retaining walls and buildings in the Midwest before 1910. However, tilt-up construction did not increase significantly until after World War Two when contractors recognized that it provides a quick, efficient method of meeting the demand for buildings despite a shortage of labor and materials.

This kind of concrete material is an economically viable method for building individually designed reinforced concrete structures. The process requires few forms and makes efficient use of modern mechanical equipment like impact crusher. Ready mixed concrete for tilt-up is locally available and special labor skills are not required. Panels are formed and cast on the jobsite, and can be quickly tilted, lifted, set in place, and braced with the aid of high capacity mobile cranes.

This process readily lends itself to mass production-panel lengths and heights are easily changed and adapted to meet any individually designed building. It also can be colored, textured, and shaped to meet almost any architectural demand using techniques such as paint, brick facing, curved surfaces, and exposed aggregate.

Tilt-up construction is most frequently used for one-story commercial buildings such as warehouses or office buildings, though two, three and four-story office buildings are becoming commonplace. Condominiums and hotels as tall as ten stories have been constructed with tilt-up concrete. However, it is no longer limited to use in industrial and commercial buildings. In 1993, tilt-up concrete panels were used to construct trickling filter tanks using sand maker at a wastewater treatment plant.

Concrete pavements are made by mixing cement with water, sand, and "virgin aggregates" obtained from rock quarries located in the proximity of the construction site. In Indiana most of these aggregates are quarried limestone.

If you are going to pave, you may have to remove the old concrete and break it into pieces anyway, so recycling makes sense. The researchers are testing concrete mixtures that contain varying percentages of recycled concrete. They also are developing cost-analysis software that will enable the state and construction contractors to estimate how much they could save by using recycled concrete. Crushing old concrete pavements into aggregate that can be recycled in new concrete can potentially reduce materials costs by 10 percent to 20 percent, depending on whether any quarries are located near construction sites.

In recent years, with the rapid construction development home and abroad, huge demand for construction sand sharply rise, but the amount of natural sand collected has been unable to satisfy the amount of sand required for the construction development.

Sand prices began to rise year after year, due to the lack of natural sand. In order to deal with the problem that the shortage of the construction sand between production and consumption, then manufactured sand was produced. Manufactured sand is also called artificial sand, which was produced by crush the cobble stone or other stone into sand by sand manufacturing machine in sand production line.

As the basic materials of concrete, cement mortar of architectural sand, Successful application of artificial sand is an indisputable fact that a large number of engineering practices (including the Three Gorges Project) has demonstrated the possibility and necessity of using sand. The sand manufacturing line consists by vibrating feeding machine, jaw type crusher, screening machine and belt conveying equipment and other mining equipment. According to different process requirements, various types of mining equipment can be combined to meet the technological requirements of different customers.

Firstly, the stone was broken by primary crushing machine such as jaw crusher, impact crusher, then, the coarse sand grain was transported to secondly crusher such as cone type crusher for further crush. Then the broken small stone can be screened out the two major sands via screening machine, one kind can be transported to sand manufacturing machine, the other will be crushed again. The small stone will be made into manufactured sand by sand producing machine, after washing by sand washing device(optional), the final artificial sand was made.

Core equipment for manufactured sand production line is sand manufacturing machine such as vsi crusher, vsi5x crusher etc. There are three generations of this kind of machines produced by our company and each generation has a superior performance and better economic benefits than its previous one. Now most of the manufactured sand are medium, coarse sand, the fineness modulus is of 2.6-3.6 in turbid, particle size distribution even and adjustable, with a certain amount of powder, rough surface, sharp edges.

High strength pumping concrete made by manufactured sand will not block the pump in the process of pumping. The concrete of right use of manufactured sand has large density, impermeability, good freezing-resisting property, other physical properties and long-term durability can use to meet the design requirement too. Manufactured sand is particularly suitable for the preparation of high strength concrete, high-performance concrete and pumping concrete.

Gold is a precious metal mined to create practical and ornamental pieces of work. Refined gold ore can be melted, poured and cast into almost any shape to make jewelry. There are numerous industrial applications for gold, as well. Many electronics and medical devices rely on gold"s ability to conduct electricity and resist corrosion. Here"s how to identify gold ore.

Gold-Ore is an international mining and exploration company with one operating gold mine and several gold and base metal exploration properties at various stages of development. The Bjorkdal Gold Mine and the company"s exploration properties are all located in the safe, highly developed and mining friendly jurisdiction of Sweden. Bjorkdal is currently producing gold from both underground and open-pit operations at an annualized rate approaching 40,000 oz/year. The company is currently focused on expanding the resource base at the mine through development drilling, while also searching for new deposits on highly prospective ground surrounding the minesite. The physical assets of the company are complemented by an experienced operations team at the Bjorkdal Mine and an experienced management team, located in Vancouver, Canada.

How is gold manufactured?

1. Rock is removed from the mine. Rock containing gold, is hauled to the crushing facility. Rock without gold is taken to the overburden storage areas.

2. Large haul trucks are used to move the rock from the Mine to the crushing Facility, or to the overburden storage areas.

3. Ore is processed at the two stage Crushing and Screening Facility,and hauled to the Valley Leach Facility.

4. The Valley Leath Facility is a lined, zero discharge area where dilute sodium cyanide process solution dissolves the gold, and is captured in the bottom of the lined area.

5. The gold is recovered from the process solution with a carbon adsorption process. The final product is a gold and silver button called Dore.

To separate the gold from the ore collected by the diggers in the mine tunnel, the ore was first crushed by a series of hammers in the stammer head. The crushed ore was then run over copper plates that had been treated with cyanide and then tinned with "quick-silver" (mercury). Mercury has a chemical affinity to gold and hence catches it. The resulting mixture was then heated to evaporate the mercury until only the gold remained. This method of extraction was used for many years although it was generally accepted that it was only 60% effective.

Gold mining machine has an important role in gold mining industry. Hongxing Machinery is a professional gold mining machine manufacturer of gold ore crusher ore gold mining crusher and gold mill machines. In gold mining, high technology gold mining equipment, such as gold detectors, elegant modern dredges, and lightweight sluices will be needed.

Gold crusher is also used as the primary crusher for crushing gold ore in gold ore crushing industry. Jaw crusher is the most used gold mining machine for crushing ore. It can reach the crushing ratio of 4-6 and the shape of final product is even. So gold jaw crusher is widely applied to crush ores and rocks with high hardness, mid and soft hardness and ores such as slag, construction materials, marble, etc.

Gold mobile crusher is the newly type of gold mining machine for gold crushing. Gold ore mobile crusher can eliminate the obstacles of the crushing places and circumstances, and offer the high efficient and low cost project plants for the client. To the client, gold mobile crusher is the best choice as a gold mining machine.

In the last decade, construction industry has been conducted research on the utilization of waste products in concrete. Some of waste products are fly ash, rice husk, saw dust, and discarded tires, plastic, glass rock, steel slugs, stone dust and ceramic. Each waste product has its specific effect on properties of fresh and hard concrete. The use of waste products in concrete not only makes it economical but also solves some of the disposal problems. The crushed rock flour can be used to replace the natural sand in concrete. The use of crushed ceramic aggregate can be used to produce lightweight concrete, without affecting strength. The stone dust can be used as alternative material in place of sand in concrete based on grain size data. Sand can replace by rock flour up to 40% without affecting strength and workability. The sand can be replaced fully with rock flour. However a slight loss in workability has been noticed with increase in replacement of san by rock flour. Sand can be replaced fully by rock flour without much loss of workability.

Nearly 20% of rock is converted into rock flour while crushing rock into aggregate at stone breaking plants. In ceramic insulator industry, there is a mass failure of about 30 to 50% of the total production due to improper mixing of raw materials, excess water, improper drying and too much of heating. No work has been reported using stone dust and ceramic scrap together in concrete so far. Hence the present work has been planned to evaluate suitability of these waste materials in concrete production.

The quantities of the constituents of the concrete were obtained from the Indian Standard Mix Design method. The variation of strength of hardened concrete using stone dust as fine aggregate and ceramic scrap as partial / full replacement is studied by casting cubes, cylinders and prisms. The concrete was prepared in the laboratory using mixer and jaw crusher. The cement, fine aggregate and coarse aggregate were first mixed in dry state to obtain uniform color and calculated amount of water obtained from workability test was added and the whole concrete was mixed for five minutes in wet state. Meanwhile the moulds are screwed tightly to avoid leakage; Oil was applied on inner surface of the moulds. The concrete after mixing using the hammer crusher was poured into moulds in three layers by poking with a tamping rod. The cast specimens were removed from moulds after 24 hours and the specimens were immersed in a clean water tank. After curing the specimens for a period of 28 days, the specimens were removed from the water tank and allowed to dry under shade.

Concrete from roads, pavements, airfield runways, buildings, and other sources can be crushed for reuse. After crushing, magnets remove the steel rebar and the resulting aggregates are screened according to planned use. The crushed concrete produces hard, granular aggregates composed of inert mineral materials including sand, gravel, and aid crushed stone.

The American Concrete Pavement Association estimates that approximately 322 kilometers of concrete pavement is being recycled each year and approximately 5.440 metric tons of crushed concrete can be reclaimed from 1.6 km of concrete pavement with an average thickness. This shows that 2.6 million metric tons of reclaimed concrete is being recycled annually in the st1:country-region w:st="on" United States.

TxDOT has specifications that allow crushed concrete to be used in flex base, cement-stabilized base, and riprap. Additionally, crushed concrete can be used as coarse aggregates in Portland Cement Concrete and as fine aggregates in asphalt stabilized base.

Recycling of Portland cement stated in Europe after World War. With time and through necessity, recycled aggregates have become increasingly acceptable as road construction. It is estimated that approximately 100 million tons of concrete nibble is generated annually in the st1:country-region w:st="on" United States. Tins amount is projected to exceed 150 million by the year 2000. Landfill life will be unnecessarily shortened if this volume of nibble is dumped there; furthermore, a valuable material will be wasted if not recycled into usable aggregate products.

IN comparison with the national annual aggregate production of more that 2 billion tons, concrete nibble represents only 5 percent of the aggregate market if it is all recycled. Since some nibble is lost during demolition and some will be disposed of in landfills, recycled concrete aggregate is probably less than 3 percent of the total aggregate market. Crushed concrete, none-the-less represents significant opportunities for economic and environmental benefits.

The Center for Transportation Research (CTR) of the University of Texas at Austin conducted a study on recycled materials for TxDOT. According to its findings, Phan district had the biggest stockpile (3.624 metric tons) of old concrete. Nine of the twenty-one TxDOT districts responded to the survey already had stockpiles of crushed concrete and nineteen districts believed that old concrete could be used as road-base material. TxDOT engineers from Abilene, Atlanta, Beaumont and Dallas districts rated the performance of concrete as excellent and professional final product manufactured by Hongxing sand maker.

Recycling of old concrete pavement has become an important issue as more concrete pavement reaches the end of its functional and structural life. Currently, economic considerations are the primary thrust for the use of recycled concrete aggregate (RCA) in Portland cement concrete (PCC) pavement. However, as landfill spaces become scarcer and more expensive, environmental considerations will play an important role as well.

The section of IH10 in Houston District between Loop 610 and IH 45 is under reconstruction. The contractor decided to use 100 % of RCA in the new pavement concrete. This project is the first one in the nation where all the aggregates used for pavement concrete crushed by impact crusher, both coarse and fine, are recycled with no virgin aggregates used. As such, there is not much information available regarding the performance of PCC pavement with 100% RCA.

This crusher is widely used in metallurgical industry, highway, building, railway, chemical industry, water conservancy project, communications, mining and quarry and road paving etc. It is a machine designed to break large rocks into a more manageable size. Usually, two types can be sorted—stationary and mobile one and they can be used with any rock found in nature, or with man-made materials like reclaimed concrete. It can be used to create gravel or rock dust, or simply to smash large rocks into smaller ones. The product created this equipment can be used for a variety of functions such as construction aggregates, landscaping, erosion control and more. Currently, usage of crusher in significant application areas such as cement industry, building, paving and mining approximately accounts for 60% or so across the industry. Next, I will analyse the use of for most significant applications.

Housing as we all know is the basic need of the society. Hence, it is receiving increased focus. All the building constructions whether it is housing or industrial construction activities all require crushed stone. Therefore, with the growth of its housing industry, the demand for crushed stone will continue to grow sharply.

Annually, 10 thousands sqm of old construction would produce 7000~12000 tons of building waste every time when they are demolished in the line with the rough statistics on construction spillage of material, that is to say, reformation of the cities and towns would generate mountains of building waste. Once the range of application of jaw crusher can be extended effectively, the building resource will be saved effectively as well. Disposal of multitudes of building wastes brings about directly improvement of the living environment of citizens.

No matter highway construction or rapid transit construction, the use of vast gravel aggregate is increasingly demanded. And as the ascendant of urbanization, highway construction industry and rapid transit construction industry are in badly need of jaw crusher. With the development of national infrastructure, demands for this equipment in cement industry provide large development opportunities for merchants, at the same time, stimulate enterprises engaging in this industry to improve their core competitiveness.

Impact crusher which drives economic development to a great extent has become an indispensable machine in many application files and in socialist modernization development. After years of development, crusher industry has developed to a certain high extent with increasing capacity to manufacture. As long as possessing of innovative spirit, we believe crusher industry will have a brighter future and enjoy large market.

Using the correct installation technology knowledge and tools, we can ensure that the bearing of screen machine is not damaged. However, not all the machines are equipped with advanced instruments. In this case, the operator or maintenance engineers must keep alert on the bearing fault signal, such as noise, temperature and vibration. Listening, touching and watching are the common and simple three methods. The equipment is a new kind of high efficiency screen equipment. It is manufactured with long material screen rifling, multiple layers and various specifications. It is featured with clear screening and high screening efficiency. It has been widely used for screening in the mining and sandstone industries. It can also be used for product grading in the industries of coal dressing, beneficiation, building materials, electric power, chemical engineering, etc. So we can provide the methods of listening as your reference. It is especially designed for screening stones and features reliable structure, strong vibration force, high screening efficiency, low vibrating noise, excellent durability, convenient maintenance, safe use, etc.

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We can ensure the highest bearing life through the proper lubrication and protection plan, and bearing state detection. It is a very common method by using hearing to identify irregular operation, such as experienced operator can use an electronic stethoscope to look up abnormal noise of a part. If the equipment is in good operation condition, it will have a low voice; if it is sharp sound, so bearing usually is in an abnormal operation condition. Sharp creak may be caused due to the inappropriate lubrication. The dentin the bearing outer track can cause smooth clear voice.

If we install the bearing to make percussive wound, it will also produce noise, the noise will be different with the speed of bearing; if there are intermittent noise, it means that the rolling may be damaged; After the damaged surface is rolled, if there is pollutant in the bearing, it often causes hissing sound and the serious bearing will produce irregular and great noise.

Although we can check vibrating screen by hearing, bearing must be replaced immediately at that time. So, it is a better method to use electronic testing instrument, this can diagnose ahead of the workings of the bearing. Compared with the old method, it is a more accurate method to use advanced instruments. Hongxing is a professional vibrating screen manufacturer in China, which was established in 1986. We mainly supply stone crushing machine, sand makers, powder-grinding machine and ore dressing machines and we also can accept product line or turnkey project.

As the important part of the production process of HPC220 hydraulic cone type crusher manufactured by Hongxing Machinery, quality supervision is also the significant content of quality management. This machine is widely applied in cement making industry, building, sand making, metallurgical industry, etc. It is suitable for both metallic minerals and non-metallic minerals, such as iron ore, nonferrous metal ore, granite, limestone, quartzite, sandstone, pebble, etc. Illustration of How CS Series Crusher crush through a horizontal axle and a pair of bevel gear, the motor drives the eccentric sleeve to revolve. The revolution of the eccentric sleeve makes the mantle move towards to the bowl liner from time to time. In this way, the ores and rocks will be pressed and finally crushed. At present, the quality supervisors has taken part in the whole monitor of the production process, containing machine processing, assembly, welding and other aspects.They can summarize and feedback the problems timely to ensure to meet the customers" demands faster and better.

When referring to the significance of the job, our quality supervisor has his own attitude: creating perfect quality is always our unremitting pursuit, and the arrangement of the quality supervisor is aimed at prompting the process. "To tell the truth, the pressure is really great when you are in this position. Although I have engaged in related work for many years, the supervisor is required to control the whole process, and be good at discovering problems so as to summarize and improvement. So constant learning is a must." Reportedly, in addition to the selection by the internal layers, the quality supervisor has got systematic training about law, producing procedure, and relative rules. Fortunately there is good documentation of financial outcomes at healthcare sites which use various quality improvement approaches. What is more, our company specially appoints Engineer the senior technician to take guidance of the supervision process. In addition, our quality supervisors will summarize and analyze the problems found at the producing scene , and then carry out special training for the counterpart staff in related area. As for the achievements of the quality supervisor, our company will conduct regular assessment according to the production and the feedback of the customers. Good continuous quality improvement programs improve the bottom line. Another measure of patient satisfaction relates to personal care. Hospitals with higher nurse to bed ratios show generally improved patent care and attention.

The quality supervisor has shown us all the record of supervising producing cone crusher, and only the assembly process, there are more than 20 process supervision records including cleaning, installation of sealing ring, spindle assembly, installed oil seals and so on. According to the introduction, each test data will be collected and sorted, and recorded in the corresponding database of HPC220 cone crusher.

Time has quietly come to the year of 2012. As for the domestic industry, the infrastructure construction has lifted a new upsurge again; and what is happening in the international market? Many third world countries such as Africa and other countries has shown new dawn in the reconstruction efforts again; many such good news will promote the mining machinery industry to welcome a new year with unlimited business opportunities.

(1) Domestic infrastructure construction lifts a new upsurge.

2012 is a year when the twelfth five year plan of our nation has a strong development. The new rural construction, security housing construction, highway, and railway and water conservancy facilities construction become a top priority. The tendency that our country has a strong support for buildings will certainly increase the demand for raw materials such as cement, sand and concrete and will provide mining machinery industry with new development opportunities.

In addition, as the policy of development of western regions is promoting continuously, the rich coal and rock resources in the western region will inject new and fresh blood for the industrial development of our country. For this reason, the research and development of highly efficient, energy saving and environmentally friendly crushing equipment, coal mining and manufacturing equipment has become the magic weapon of the mining machinery manufacturing companies for taking up the western market.

(2) Third world countries show new dawn in reconstruction efforts.

In recent years, the third world countries have had remarkable period of development, especially Egypt, Libya, Iraq, Tunisia and other countries, their national reconstruction will become the first priority for the new government to win over popular support and lay the dominant position after coming to power, and road and houses construction are inseparable from the support mining machinery.

In its development course of twenty years, as the tycoon of the domestic mining equipment industry, Hongxing Machinery dominates exclusively the domestic and foreign market with mature products equipment like jaw crusher and Raymond mill and perfect service systems. Advanced technology content, high reliability, low operation and maintenance cost have enabled our products to take the leading position in the field. Our products have been exported to more than 130 countries and are widely used in global mining and construction industry. Being innovative and perfect is our incessant pursuit, and also our vigor source of energy and harmony. We will continuously create better products and better services, and always bring more value for our customers.

As the concept of energy conservation and emissions reduction gradually enjoy popular support, many enterprises and companies begin to pay attention to the research and development of high efficient and energy saving products. In architecture industry, bulk cement gradually becomes the favor object of contractors. The facts that the generalization amount of such material in Xuzhou exceeds over ten million tons and Hubei determines bulk cement as the twelfth five years development planning goal show that it enjoys good development tendency.

What is on earth bulk cement? It is said relative to the bag one. It refers to that directly transported from the factory to the freight station or end users through special equipment or containers without any small packing after it is manufactured in the factory. This industry in our country began in the 1950s and promoted to a peak in this century and has become an important part of the energy saving cause. Its development is not only the reform of the traditional flow way which will be beneficial to high efficiency and modernization of construction technology, but also has obvious economic benefits. It will make great contributions to saving resources and improving the economic benefit; improving the quality of the project; reducing the noise pollution and improving the construction environment, improving work efficiency; reducing dust and improving the atmospheric environment quality and sulfur dioxide emissions so that it has significant ecological benefits.

Hongxing ball mill is used exclusively for its production and is widely used in building material industry. This machine is the best choice for the bulk cement production machines products manufactured by which has been in wide application in all parts of the country. Demand is growing so fast and continues to grow, and you can’t cap that. The main work process is that the material evenly goes into the first mill storehouse through the material feeding device, and the storehouse has liners or corrugated linings inside, and there are steel balls with different specifications. The cylinder turns and produces centrifugal force to bring the steel ball to a certain height and then drop down to produce thumping and abrasive effects to the material. The powder material screened through the vibrating screen and is discharged through the discharging board and in the end the powder grinding work is done and the material that conforms to the demand of construction industry will be manufactured. Because the ball mill is highly efficient and energy saving and has little pollution and high processing capacity in the production process so that it enjoys high praise among the manufacturing companies.

Conventional hindered-bed separators are used extensively for classification and gravity concentration of minerals such as ore, coal, and titanium-bearing beach sands. The process can be inefficient due to wide variations in the solids content and size distribution of the feed. The poor efficiency has an adverse impact on plant performance (product recovery, concentrate quality and throughput capacity), and on operating costs (power consumption, water usage and reagent consumption).

Design improvements are needed to correct inefficiencies associated with conventional hydraulic separators. Compared with a conventional classifying machine, the CrossFlow design combines the use of an improved feed injection system and simplified water distribution system. This makes it possible to increase both the separation efficiency and throughput capacity, while eliminating mechanical problems associated with existing designs.

Operating demands, including power, water and maintenance, are expected to be significantly lower for the CrossFlow design when reporting on a per ton of concentrate basis because of higher throughput capacity. The HydroFloat separator , a novel air-assisted hydraulic concentrator , is an innovative process that combines the flexibility of a flotation process with the high capacity of a density separator. The machine"s unique design features will make it ideal for recovering very coarse particles that are too large to be upgraded by existing froth flotation processes.

Fine particle classification is practiced at essentially all mineral and coal processing operations. Therefore, the entire industry is expected to benefit from the industrial research work outlined in this project. The proposed work will initially focus on only phosphate, mineral sands, and coal-related applications. However, the technological improvements will positively impact many other mining related applications.

These goals will be achieved through two phases. In Phase I, these new technologies will be further developed through systematic pilot-scale testing of key design and operating variables at three industrial sites. In Phase II, the technologies will demonstrate improved performance capabilities in field trials conducted at one of the industrial sites, using a production-scale prototype. Data from the pilot-scale and prototype tests will be used to develop simulation programs for process scale-up and to develop optimized high-efficient flowsheet.

Upon successful completion of Phase I, the industrial team members will evaluate the feasibility of upgrading existing processing circuits and/or installing new processing circuits based on the projected benefits. Virginia Tech and the University of Kentucky will assist with flowsheet design and projected processing performance, utilizing the simulator developed during Phase I of this project. The sand maker manufacturer will provide the design and engineering functions to scale up the unit for commercial production and will also manufacture the production-scale unit. As such, we will take a leading role in the long-term commercialization efforts for these new hammer crusher technologies.

By way of Analyzing and exploring the domestic and international advanced technology and combining the common problems occurring in the production process, RedStar Machinery researched and developed new type of ancillary equipment such as energy-saving Raymond grinders, crushers and vibrating sieves and many of such machines are applied into chemical industry, building materials, metallurgy, mining and other industries, and they form a special characteristic in the country"s mining machinery products market and commit to the development of overseas market.

Material crushing is an indispensable link in the chemical industry, mining and cement and other industrial production, and generally speaking, the granularity and processing capacity of the mill is a contradiction that is difficult to coordinate because high fineness will certainly have an influence on the production capacity of the mill. In order to solve this problem, Hongxing mining machinery regard the research on mill fineness and high yield as an important object of studying. At the same time, analyze and study the high-end technology that is introduced from other countries. In addition, according to the industrial environment and market development, develop hanging Raymond mill with competitive advantages, and this kind of product not only has fine degree but the production was subsequently heightened which successfully solves the uncoordinated problems exiting in the ordinary grinding machine.

We adhere to strict scientific ideas, not only make great breakthroughs in technology, but strive for perfection in the manufacturing process. We set checkpoints in every link from raw materials to finished products in order to maker sure the stability reliability of the product quality. In the raw material aspect, all adopt high quality steel products, forgings select famous high-tech forging plant products, which adds quality insurance for the products from the source; as for the technology, we actively absorb domestic and foreign advanced technology and use it for ourselves, work to make professional model in this industry with science and technology so that the product quality and content of science and technology can be continuously improved, with the high-tech science and technology content we add a second quality insurance for the ore beneficiation products; Quality control, the company has a set of strict quality testing procedures equipment, each set of products is inspected over and over again before they leave the factory so as to add the third quality insurance. The three quality insurances effectively ensure the product quality, making the vulnerable parts not easy to be damaged and fundamentally extending the life of the equipment, thus we set a good public praise for the company with rigorous attitude of scientific research and sincere service attitude.

In today"s industry field of mining machinery, grinding machine is the most widely used equipment as for the miners. If you want to get some benefits from the industry field of mining machinery, you should have some basic but useful knowledge about this series machines. The grinding machine consists of a power driven grinding wheel spinning at the required speed (which is determined by the wheel’s diameter and manufacturer"s rating, usually by a formula) and a bed with a fixture to guide and hold the work-piece. The grinding head can be controlled to travel across a fixed work piece or the work piece can be moved whilst the grind head stays in a fixed position. Very fine control of the grinding head or table position is possible using a venire calibrated hand wheel, or using the features of numerical controls.

With the rapid development of the Chinese economy, the equipment of grinding machine will certainly play a vital role in its project territory. Today"s grinding machine of mining equipment industry has walked through the extensive development moment that relied on the cheap labor advantage and the expense of the environment. Conforming to the trends of low-carbon economy, the grinding machine industry is positively exploring the energy conservation and environment protection development path.

Grinding machine is kind of mining machinery equipment that may be used versatile, expedient and maneuverable, especially Hongxing Machinery’s ball mill machines, they always bring you the optimized characteristics.

In recent years, the grinding machine industry has got a rapid development. During this period, the industry of mining machinery has also so many elite companies came to the fore. There have been many new products and new equipment appeared in the market and showing the strong vitality. Henan Hongxing Mining Machinery Co., Ltd is a professional company which produces the mining equipment. The grinding machines our company produces mainly consists of Medium Speed Trapezium Mill, MTW continental trapezoid mill, SCM Super-micro Mill, Efficient crushing-type mills, Reinforced ultrafine mill, LM series vertical grinding mill and Raymond Mill. They all have the optimized structure, excellent performance, long tool life and easy tool changing. They are always vigorous. Since the establishment of the company, he always being at the forefront of the mill technology and even pushing the Chinese mill technology to the leading stage of the world.

Our company has independent import-export right with a special international market department to deal with exporting affair. We have a professional after-sale service faculty to provide considerate and all-around-way service for the customers. Advanced technology content, high reliability, low operation and maintenance cost have enabled our products to take the leading position in the field. Our products have been exported to more than 130 countries and are widely used in global mining and construction industry. Being innovative and perfect is our incessant pursuit, and also our vigor source of energy and harmony. We will continuously create better products and better services, and always bring more value for our customers.

Market demand is the drive and basis of our endless innovation. Rich technical experience and the application of high technology make our products rank a leading place in the industry in technology content, performance, reliability and maintenance cost, etc. We expect your choice and prepare to provide you with heartfelt service at any time.

In the stone production and manufacturing line, the equipment that is relatively frequently used is crushing machine, of which there is jaw crushing machine used for coarse stone crushing, impact breaking machine used for secondary crushing or heavy stone crushing machine for one-time breaking. Sometimes according to the technical requirement, the production line needs to configure impact breaking equipment. For this reason, in this manufacturing line, most of the maintenance work of the equipment refers to the maintenance work of the crushing devices. Only doing this part of job well can make sure the job of keeping the stone processing line in good condition to go well. Next, we will analyze this part of work from the following three aspects:

(1) Maintenance of bearings:

The bearing part is the most easily broken part, in actual use, the wear is relatively big, so it needs frequent maintenance, only by refueling can increase the service life of the bearings.

(2) Daily maintenance:

It is done in order to make sure the crusher is in good state for technology and can put into operation at any time, reduce downtime, improve the utilization rate of pipe, reduce crusher wear and prolong service life; regular and periodic service is necessary and sometimes it may need to be done with an order. An enterprise should correctly deal with the relationship of use maintenance and repair and only use or repair is not allowed.

(3) Lubrication Aspect:

Often paying attention and timely do the lubrication work to the friction surface can make sure the jaw crusher operates normally and extends its service life. The lubricating grease added into the bearing pedestal should be 50-70 percent of the volume and it should be changed every three months. When changing oil, the technician should use clean gasoline or kerosene to carefully clean the runway of the bearing roller. If the toggle plate touches the toggle plate mat, lubricating grease should be injected before the crusher is operated.

When it is necessary, or desirable, to operate a gyratory crusher at discharge settings below the minimum standard, the safe procedure is to fit the machine with a reduced throw eccentric. The crusher manufacturer will be able to advise the operator about these special throws for machines of his make.

If a reduced throw eccentric is installed, the capacity at any given setting will drop off approximately in direct proportion to the reduction in throw. In some cases it is possible to compensate, partially at least, for this drop-off by speeding up the machine. Here, again, the manufacturer will be able to advise the operator as to the maximum safe speed for any particular impact crusher of his line.

In the afternoon of July 24, 2010, the competition for the post about metalworking section chief was held in the meeting room of second floor. It was another milestone that Hongxing Machinery enhanced management and innovation for promoting the development of the enterprise.

Metalworking section is only the position in the production line. However, it is an important position for mining machinery industry. With the increasing production order, the members of metalworking section are also increasing constantly. This adjustment aims at improving the work efficiency and enhancing the customers" response time. Meanwhile, it also enhances the staff management, standardizes the work ticket classification, accelerates the inspection and transport of complete work piece, improves the work efficiency, and thus enhances the whole economic benefits of the whole company. We offer not only products with good quality and competitive price, but also top service and solution.

Since it is established, Hongxing Machinery has been enhancing the management ability constantly, increasing the innovation strength and promoting the corporate image. During the unremitting innovation process, our company insists on the idea that customer is the first. Our success depends on the success of customers. Every time, the innovation will bring the tangible benefits for the customers. We believe that we will create a world-class brand in the crushing and screening industry by our creative spirit and professional skill.

We have many technical experts in domestic crushing and screening field, and possess the powerful ability in developing new products. We regard demands of customers as our motility and endlessly develop new products with high performance, which could satisfy the demands of customers and reach the world level

With the rapid development of market home and abroad, our competitive ability enhances continuously, and our products have been broadly applied in the national key projects. In the course of construction of the national expressway network and the large-sale hydropower station, we offer the self-contained crushing plants lots of whole set of crushing and screening production lines, which could offer concrete aggregate of high quality. While expanding the domestic market continuously, our crushing and grinding equipment such as jaw crusher and ore beneficiation has been exported to Russia, Mongolia, Chile, Middle and East Asia, Africa, etc.

We have perfect after-sale service network. After strict train, the after-sale service engineer could offer customer the rapid maintenance service on demand. Moreover, we have our own foundry plant where lots of spare parts of the crushing and screening equipment are manufactured and many stored, which could offer customers spare parts conveniently. We insist on innovating, improving our equipment and enhancing its reliability constantly. We aspire to be the global brand in the crushing and screening field, and we are fully aware that our success is based on the success of our customers.

Sand is one of the key components of concrete and sand pulp, and it is also the fundamental raw material of civil construction and engineering. It can be divided into natural sand and artificial sand. Natural one is formed in nature condition (mainly from rock weathering). Generally, we call it natural for the rock grain size is below 5mm. Artificial one is manufactured sand, which refers to the rock grain size less than 4.75mm which has been processed and screened by crusher machines. The standard one is divided into three kinds of coarse, medium and fine according the modulus of fineness.

Coarse: the modulus of fineness is 3.7-3.1, the average size is above 0.5mm

Medium: the modulus of fineness is 3.0-2.3; the average grain size is 0.5-0.35mm

Fine: the modulus of fineness is 2.2-1.6; the average grain size is below 0.25 mm.

The modulus of fineness is finer, the sand is coarser. The range of modulus of fineness for regular concrete sand is 3.7-1.6. The medium size sand is better. Or you can mix little fine sand to coarse sand, and the mixing proportion is 4:1.

The grain composition of sand refers to proportion. The space cavity of two same-sized is large, and it will be small under the condition of the proportion of two different grainsizes; it will be smaller if there are three kinds. So, the rate of space cavity depends on the proportion of different grainsize. It can save cement consumption, and increase the density and strength of concrete and sand pulp if the proportion is well.

Hongxing Machinery produces a wide range sand maker or we can also call it vertical shaft impact crusher, with the advantage of low consumption, cost effective, the final product size is shaped well and low iron and dust pollution. Its fineness size can be adjusted, so the sand and gravel proportion is well, which is suitable for providing aggregate to highway, railway, civil engineering, dam construction and concrete batching plant.

This machine is a high-efficiency rock crushing equipment with home and international leading level; the machine is developed by introducing the crushing theory and technology from Barmac Company of America and combining the actual situation of sand making. It is widely used for crushing of hard and brittle materials, such as rock, grinding material, refractory material, cement clinker, quartzite, iron ore and concrete aggregate; and it is especially suitable for the sand and sandstone making for construction and road paving.

In 2010, the sales performance in Hongxing Machinery achieves the great success again compared with the corresponding period last year. As the famous crushing and screening manufacturer and system service provider, in order to enhance the popularity of Hongxing brand and the reputation of the products such as construction waste disposal equipment, Henan Hongxing Mining Machinery Co., Ltd makes concerted efforts and works together in the several respects that organization and management, production control, sales training and service specifications in the new year.

What is the most need in 21st century? It is talents. If a company wants to develop, the most important resources and competitive advantages are the talents. In order to get this kind of advantage, our company provides enough development space and invites the person with lofty ideals to join the company. After many selections, the foreign trade department, the domestic trade department, e-business department, technology research and development department, financial department have accepted some new employees.

The issue with many companies today is that their organizations put tremendous effort into attracting employees to their company, but spend little time into retaining and developing talent. A talent management system must be worked into the business strategy and implemented in daily processes throughout the company as a whole. It cannot be left solely to the human resources department to attract and retain employees, but rather must be practiced at all levels of the organization. The business strategy must include responsibilities for line managers to develop the skills of their immediate subordinates. Divisions within the company should be openly sharing information with other sand maker producing departments in order for employees to gain knowledge of the overall organizational objectives. Mining Machinery manufacturing companies that focus on developing their talent integrate plans and processes to track and manage their employee talent.

We all know that teams with the best people can perform at a higher level. We also know that to deliver topline growth even the best people need to be engaged, developed, and rewarded. Leading organizations know that exceptional business performance is driven by superior talent that’s managed with consistent processes. The supplement of new members makes the sales, promotion, design research and development, cost control and other aspects expand further, and the strength is stronger. The centripetal force, coagulative power and combat power reach to a new height. Thus it is predictable that the company will also appear a new vigorous sight. For all staff, it is the common struggling goal that Hongxing Machinery can develop better and faster and become the No.1 mining machinery brand in China in manufacturing hammer crusher.

It is the most difficult period for China mining machinery industry in the 1990s, this industry started to recover after 1999, loss of business out of the predicament, ushered in the development of historic opportunity. But at present, its technological base is weak, since the reform and opening up, as the market for technology to improve the level of product technology the main way, and face of foreign competitors in China"s investments and the grim situation at the same moment. Experts suggest that China should seize the opportunity to accelerate the development, first in research and technical innovation aspects.

There are two aspects of problem for this industry: First, the overall strength is not strong, the majority of enterprises in scientific research, new product development, technological innovation and business management, energy and capital investment are at a standstill. Varieties of domestic machinery products, especially the key to nation-building much-needed equipment can not meet the requirements, and there is a low-tech products, value-added products is not high, unstable product quality, labor productivity is low and so on. Resulting in  manufacturing enterprises, which produced growth and profit growth did not match. Second, product variety, technology, quality, service, etc. problems led to the actual contribution of the mining rate. The metallurgical and mining, for example, currently there are 1180 kinds of equipment used in China to only 26 percent self-sufficiency, and most low-tech and quality is less demanding equipment, and the remaining 74% still need to import. Domestic high-tech equipment, particularly mobile devices, such as TBM, mining vehicles, excavators, scrapers, etc., and there is a large gap between the imported equipment.

To this end, the experts proposed to increase the innovation approach: First, the jaw crusher manufacturing industry should be taken with foreign companies and professional design institutes to establish different forms of joint, including the formation of groups, unions, the introduction of technology, introduction of talents, at least to fight in a joint project on the design approach, the first intervention and then increase, so win-win situation.

Second, establish and improve the advantages of professional applications laboratory, product, manufacturing process of applied technology research. Laboratory should be a high start, based on the practical; including test theory and methods, test ore beneficiation equipment and scale, and control and detection technology, if necessary, should be the introduction of foreign advanced technology.

In addition, domestic and foreign institutions of higher learning not only is the technology talent base, but also is the origin of basic theory and experimental research for mining machinery, it must use its power, and take different forms of joint cooperation with them.

Cement manufacturing as a procedure and as a big production line has undergone many phases of makeover in current times.

An integrated cement manufacturing process is that prepares the raw mix, feeds it to the pyro-processing system (kiln), and then grinds the clinker from the kiln system into various cement products. Finished cement is stored in large silos on site or bagged for small quantity use.

Crushing process: The raw materials mainly limestone, clay, coke are crushed in the separate crushers and stored automatically into the respective silos.

Storage and Proportioning: The different raw materials are extracted from the silos in the desired proportion through table feeders and conveyed to raw mill.

Raw Milling: The raw mix is ground into a ball grinder at desired fineness to produce Raw Meal, and transported for Homogenizing.

Blending & Homogenization: The raw meal is homogenized in the blending silos, and is stored automatically into a storage silo for feeding to the kiln.

Palletizing & Burning: The nodules are made into a nodulisor and charged into the kiln for burning. The clinker after discharge is stored in the clinker yard through deep Bucket Elevator.

Clinker/gypsum crushing, storage & proportioning:

Clinker & Gypsum after crushing stored into the hoppers and extracted in the desired proportion with the help of table feeders and transported to the mill Hopper.

Cement Grinding: The clinker & Gypsum mix is ground to produce cement.

Storage & Packing: The cement is stored into the cement silos and aerated, tested and packed for dispatch.

Cement manufacturing plants:

Cement manufacturing plants should be include high efficient separator which has such characteristics as low energy consumption, cooling and drying, high availability, relatively low capital expenditure, high selectivity, and, proper product separation.

Hongxing Machinery is a famous and professional crushing and grinding machines manufacturer in China, and offers various types of crushers, screens and grinding mills for cement manufacturing lines in USA, Russia, Brazil, Kuwait, Pakistan, Ghana, Korea, India, UAE, Bangladesh. The development way depends on the concept and the good product comes out of the good faith. Our company also designs cement manufacturing process according to the layout for cement factories. Hongxing Brand is a "China Famous Brand" for reliable and stable quality. We firmly believe that we can get sincere repayment with our sincere dedication.

Cement Grinding Mill

Cement Crusher

Coal Mill in cement plant

Vertical Cement Grinding Mill in cement plant

Ball mill used in cement industry

Gypsum powder production line

The vertical mill is a kind of mill equipment which is widely used in cement chemicals, coal, electricity and other fields. With the advantages of small footprint, low power consumption, small noise, simple process, layout compact, combined with crushing, drying, grinding, classifying as a whole, it has become the preferred equipment for milling cement raw meal in the modern cement production factories.

The world"s first vertical mill was developed by Loesche Company from Germany, who had the mature design already in the year of 1925. At present, the largest one - LM63．4, has a capacity of 840 TPH, with the millstone diameter of 6.3mm, the power of 5600 KW and is equipped with 4 rollers.

The current abroad manufacturers mainly include Loesehe Company, Fuller Company, UBE Company, FLS Company (Atox Mill), KHD Company (RM mill) and Pfeiffer Company. The domestic manufacturers have a relatively small amount, whose R&D and production are still in the developing level. However, compared with international brands, the domestic brands have some unique characteristics, which are better suited to the domestic market.

Compared with other grinding equipment, this machine has the following features.

1. High efficiency of grinding. Using the principle of material bed’s crushing and squeezing, the material is rolled, cut, impacted in the mills; the airflow in the mill can take the grinded materials out timely to avoid excessively grinded; the materials generally stay in the mill for 2-4 minutes. It has the 165% grinding efficiency as the ball mill and the power consumption can be reduced by 30% or so.

2. High drying efficiency. Hot air spray in from the annular gap with high wind speed; there is a large ventilation cross-section in the mill and the air resistance is very small. The materials with 8% moisture can be dried by the exhaust gas from preheater in the end of kiln. If there is a hot air furnace, the materials with 15%-20% water content will be dried. So it has many advantages over dryer machine.

3. The feeding size can be very large and usually can be up to the length as 5% of the roller diameter. The large ball mill’s feeding size can be up to 150 ~ 200 mm. The equipment has superior technical performance and is of high capacity. It has high rate of operation and lower metal-worn than the ball mill.

4. Strong adaptability to grinded materials. It can be used to grind a variety of materials, such as limestone, sandstones (Si02 90%), coals, cement clinkers, blast furnace slags and so on. No matter the differences of raw material’s easy-grinding or abrasive, the equipment can produce qualified products with different fineness and different specific surfaces just by adjusting the internal structure and operating properly.

5. Simple process and compact layout, lower routine maintenance cost. It can be used as open-air setting and can save 70% construction investment than the ball mill.

The biggest business concern for rock crushing machines operators, undoubtedly, has to be crusher maintenance. Being able to properly run and maintain the rock breaker in order to maximize its life expectancy is an essential prerequisite. This will come from knowing the specifications. Being able to understand how much you can do and how to clean the crusher properly are the keys in extending its service life. Simply knowing when things need to be changed or replaced on the crushers will allow for increased life as well.

The development of crusher industry is quite fast, and there is a vast potential for future development in the heavy industry. At present, the popular and leading crusher in the world mostly develops on the basis of America Newell Corporation. The production and development of crusher are closely linked the scrap steel industry. At the beginning, it only handles the light and thin materials. With the development of recognition about it and the appearance of broken steel’s advantage, various standards’ crusher is developed continuously. The range of application is also more and more extensive. It even can handle the scrapped automobiles and some household appliances.

For increasing the service time of crusher, it is necessary to learn some skills of operational maintenance, so as to accomplish the combination of use and maintenance.

There are some methods of maintenance for crusher as follows:

The first is the preparation work before driving.

●To check jaw plate, bearings, draw bar, supporting plate, spring and triangle belt are in good condition; fasteners are firm; Protective devices are complete; there is no barrier around the moving parts and so on.

●To check the bearings have refueled.

●To ensure no materials are in the crushing chamber before opening the crusher.

The start-up sequence is in turn dust collector, crusher, discharging belt conveyor，charging belt conveyor, vibrating feeder and so on.

●To adjust the feeding quantity of vibrating feeder, and increase from small materials to big materials, it is usually controlled the height of materials is 4/5 of the jaw chamber height. In addition, it should be also noticed that the largest particle size of materials is no more than 4/5 of the feed opening width. What’s more, when the feed particle size is continuous and uniform, the crusher can brings into play its optimal efficiency.

Many problems that would occur can be prevented if employees are trained properly. Employees can be trained on one-to-one basis or through a group session. Group sessions are more advisable if a new technique or process has to be imparted to employees. Employee training program should be designed in such a manner that it keeps in mind each employee"s needs and current skill status. Proper training of employees increases their morale, confident in operating the crusher, their efficiency to work and decreases employee turnover which in turn lead to better working machine and an increase in profit over the long run. Employee training is not a one time job rather it should be done periodically so that each person is well equipped with the correct and updated knowledge of operating and maintenance.