Henan Zhengzhou Mining Machinery Co., Ltd. introduce the updating of dressing equipment and the application of new technology applications as follows according to many years production experience of dressing equipment, combined with the development of the industry.
In order to reduce the crushing granularity, the cone crushing machine and disc crusher after technical improvement will soon put into production, adopting wet autogenous grinding or semi autogenous grinding technology for the ore which is suitable for the grinding. compared with conventional crushing process, the autogenous grinding process is simple, which can save crushing and grinding integrated investment and production cost, improve the working environment.
So far, the mining field with self grinding process has reached more than 50 seats. The maximum size of mill is Ф7.5m×2.8m and the mill in oversea is Ф11m×4.6m. Nearly ten years at home and abroad, it’s in the in the research and application of linear vibrating screen, a high frequency sieve, vibration sieve, and other classifying equipment wiht high effeciency in grinding ore loop.
To stabilize and improve grinding ore grade and reduce the rock into the grinding, improve the ore dressing plant processing capacity, reduce the mineral processing cost, some of the ore dressing plants process the ore preliminary selection, discarding tailings before grinding. Gravity concentration must adopt the centrifugal force field and comprehensive force field dressing equipment. Weakly magnetic minerals generally adopt the wet high intensity magnetic separator and the high gradient magnetic separator. High-efficiency concentrator has already used in production.
Vacuum filter adopt the water jet pump to replace the vacuum pump and air pressure machine, which can save energy and water consumption. In recent years, vacuum belt filter, belt filter, automatic filter press to reduce concentrate and moisture. In recent ten years, the tailings dam is designed to control the flood discharge and seepage, make the length of infiltration line height and the dry beach conducive to the safety and stability of dam, adopt a variety of ore dressing methods to broaden the range of conventional mineral processing technology for maximizing the comprehensive utilization of mineral resources. In recent ten years, the gold smelting technology has got a rapid development, all slime cyanidation, dust replacement carbon plasma method, resin-in pulp process successfully used in production, which reduce the gap between our country and foreign countries.
