DEVICE FOR GRAVITY SEPARATION OF FINE-GRAINED MATERIALS Russian patent published in 1998 - IPC

FIELD: devices for gravity concentration of ground mineral raw materials; may be used in concentration of ores or noble, rare and nonferrous metals. SUBSTANCE: device includes conical bowl installed for rotation round vertical axis and having circular grooves on internal surface and false bottom, and appliance for supply into bowl of treated materials. Appliance for supply of water for loosening up of material is made in the form of perforated tubes from elastoplastic located in recesses between grooves. Appliance for unloading of light fraction is made in the form of circular trough. Appliance for unloading of heavy fraction is made in the form of a row of holes in bottom of conical bowl. EFFECT: higher efficiency. 2 dwg, 1 tbl