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.

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 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.