METHOD OF DRY CONCENTRATION OF KAOLIN Russian patent published in 2002 - IPC

FIELD: dry concentration of metal-ore minerals, mainly kaolin; concentration of table and dolomite, limestone and other non-metal-ore materials. SUBSTANCE: proposed method includes drying, grinding, three-stage separation, deposition and dust accumulation operations. Kaolin fractions are separated by deposition in aspiration air conditioning line and deposition and dust accumulation in waste drying gas treatment line; they are combined in one flow and are directed for grinding operation. EFFECT: increased extraction of kaolin from raw material; reduced power requirements; increased productivity of productivity of production line and material flows. 1 dwg, 1 ex