The ores dressing technology in our country is influenced deeply through the former Soviet Union. The key crushing equipment is vertical roller mill, with only a few enterprises using rod mill to protect the fragile minerals such as tungsten, tin, antimony and key.
The key vertical roller mill in our country includes the cement vertical roller mill, tubular vertical roller mill, cone vertical roller mill, chinaware vertical roller mill, internal, overflow type and lattice type vertical roller mill. The rotating speed mainly ranges from 17 to 28r/min, with the discharging particle sizes ranging from 0.075 to 0.89mm, the productivity from 0.65 to 100t/h plus the total weight from 5.5 to 175t.
The coming years will be the rapidly developing period of vertical roller mill all over the world, especially for Chinese vertical roller mill. It is important for the domestic mining enterprises to improve the research and update of product and build the systematic and comprehensive after-sale service.