PNEUMATIC SEPARATOR Russian patent published in 1999 - IPC

FIELD: equipment for separating bulk materials by air flows, in particular, removal of light contaminants from cereals. SUBSTANCE: pneumatic separator has pneumatic separation channel with cross window for introducing material to be separated, and feeder mounted in separation channel for displacement in vertical plane and made in the from of corrugated roll with cells on its outer surface. Cells are defined by blades, which are positioned in offset relation to radial direction and oriented to side opposite to direction of rotation of corrugated roll. EFFECT: increased efficiency in separating light contaminants by uniform distribution of material over separation channel and elimination of accumulation of material in lower part of channel. 1 dwg