TWO ASPIRATION PNEUMOSYSTEM OF GRAIN CLEANER Russian patent published in 2012 - IPC A01F12/44 B07B4/02 

FIELD: agriculture.

SUBSTANCE: two aspiration pneumosystem comprises a device of distribution and entry of grain heap, pneumoseparating channels of pre-screen and after-screen aspiration, two sediment chambers and air intake channel connecting the sediment chamber of pre-screen aspiration with an external fan. The sediment chambers have devices of output of impurities selected with aspirations and are interconnected with the pneumoseparating channel of pre-screen aspiration in a single aspiration unit. The pneumoseparating channel of pre-screen aspiration is made horizontal and is provided with a valve of adjustment of airflow rate. The sediment chamber of pre-screen aspiration is divided with the adjacent wall with the adjustment valve into two sections - for sedimentation of the heap components selected with aspiration and for grains cleaned with aspiration with their output on the screen separator with the sloping channel with the sealing gravitational valve.

EFFECT: improving the quality of cleaning while reducing energy consumption of the cleaning process.

1 dwg