METHOD AND APPARATUS FOR SEPARATING LOOSE MATERIALS Russian patent published in 1999 - IPC

FIELD: loose material separation, possibly in agriculture for separating hard-to-separate materials. SUBSTANCE: material is fed from charging hopper by solid layer, then material is separated by two fractions with use of plane-parallel nozzle joined with pumping branch pipe of blower. Nozzle is arranged between charging hopper and separation chamber. Separated fraction material is alternatively fed by batches in equal time periods from supply unit having two reservoirs arranged on separation chamber by means of valve connected with crank drive mechanism into horizontal separation chamber. The last is joined with pumping branch pipe of blower. EFFECT: enhanced quality of separation. 2 cl, 3 dwg