PNEUMATIC SEPARATOR Russian patent published in 2010 - IPC B07B4/02 A01F12/44 

FIELD: engines and pumps.

SUBSTANCE: pneumatic separator comprises aspiration channel made at an angle to horizontal plane and hopper for initial material arranged above aforesaid channel and furnished with the device to feed initial material into aspiration channel. Channel upper end has branch to communicate it with dust separator and blower. Wall of the branch inner radius enters inside aspiration channel to secure a part of its cross section. Initial material feed device represents several shutters arranged to turn about horizontal axes, one above the other along hopper wall adjoining aspiration channel. Shutter axles support levers interconnected by tie rod furnished with locking device. Shutter width is set depending upon distance between axles.

EFFECT: higher quality of separation.

3 cl, 3 dwg