There is a large gap between the mature technology and the equipment of our country
Quartz sand color separator has chosen technology is based on different ore composition reflects vulnerable to test the physical properties of (optical, radioactive, magnetic and electrical, etc.), through a variety of detection methods were identified, and rely on outside force will ore or waste rock separated a physical separation method.
The belt feeding system speeds up the ore in a steady way through the irradiation detection area. The belt feeding system designed by Beijing metallurgical research general hospital has the characteristics of stable feeding, wide variety of conveying materials, large space of irradiation and detection system, large amount of ore, etc. The speed of the mine can be adjusted at 2-5m/s to meet the requirements of the testing and separation system.
This kind of feed system has been widely used abroad, such as Germany Commodas ROM series separator feed also adopt this way, with the highest speed can be up to 6 m/s, when selecting 6-75 - mm particle size of ore, capacity has reached 100 t/h.
In terms of the application of X-ray fluorescence separation technology, the domestic ore selection researchers combined the Russian X-ray radiative separator to carry out the industrial experiment work in the domestic metal mine. For example, a key mine in henan province first used the sorting machine in 2008 to raise the grade of the primary mine key from 0.167% to 0.217%, and the average enrichment ratio was about 1.3.
Coarse grain color separator with the continuous development of the picking technology and application of testing technology types, separation of execution system responsiveness, stand-alone capacity is more and more big, the separation material range and grade separation continuously expanded. In the next five years, the main tasks will focus on improving the selection accuracy, lowering the cost of equipment, expanding the selection of minerals and advancing industrial applications.
Although the research work carried out very early in our country, but in mature technology and equipment and application and are obviously larger than abroad, and because the domestic ore complex, difficult to choose, also for research and development and application of technology and equipment to a lot of problems. At present, the domestic mining enterprises are faced with the pressure of cost, reduction and environmental protection, which will surely create a favorable environment for the research and development of the selected technology and equipment suitable for the national conditions