The high pressure suspension grinder is to grind the following non-inflammable and non-explosive materials with the hardness below scale 9.3 of Moh's and the moisture content below 6%, such as quartzite, feldspar, calcite, talcum, barite, fluorite, rare-earth, marble, potter's clay, bauxite, manganese-ore, iron-ore, copper-ore, phosphate-ore, ferric-oxide(red), slag, limestone, ferric-oxide(yellow),bean-coal, etc. The production is higher than other grinders by 20-30% under the same power condition. The pressure from roller to stuff is raised 800-1200 kilograms under the function of pressure spring. All mining stuff below scale 9.3 of Moh's hardness can be grinded and processed. The fineness of product ranges widely from 0.013mm (1000 meshes) to 0.613mm (30 meshes). And it is 0.033mm (425 meshes).
After crushing, large size is sent to the hopper by elevator and then to the grinding cavity continually and uniformly by vibrating feeder. It is shoveled into the space between the roller and the ring. The blower brings the air from the base to the cavity and the crushed stuff to the separator. Large size stuff falls back to the cyclone collector with the air; it comes out from the discharge opening and becomes the final product. The circulation wind returns to the blower to repeat the above process.Because the ground stuff contains certain water, it will generate heat resulting in the water evaporates. And the outside air will be drunk in because of unclose join of each rope. Both lead to the addition of the circulation wind. To guarantee the grinder's working status, the additional wind rope between the blower and mainframe. Then it goes to the air.