PNEUMATIC SORTING APPARATUS Russian patent published in 2003 - IPC

FIELD: grain sorting and cleaning equipment. SUBSTANCE: pneumatic sorting apparatus has vertical pneumatic channel with charging device, fan and separation product collectors. Transfer plates are fixed in inclined position to pneumatic channel wall internal surface. Troughs are arranged in at least two rows inside charging device. Width of troughs exceeds by 10-15 times average length of particles under sorting process. Troughs are mounted for adjustment of their position in vertical plane. Tiered troughs provide feeding of separate flows of material under process into pneumatic channel. Such construction enables free passage of light particles to upper parts of apparatus. EFFECT: simplified construction and improved quality of sorting process. 6 dwg