PNEUMATIC SEPARATING SYSTEM OF GRAIN CLEANING MACHINE Russian patent published in 2020 - IPC B07B4/02 

FIELD: agriculture; machine building.

SUBSTANCE: present invention relates to agricultural machine building and can be used in grain cleaning machines. Pneumatic separating system of the cleaning machine comprises a receiving hopper, an air channel for cleaning the grain to the screen with a settling chamber and a fan mounted thereon, air channel for cleaning grain after sieves with sedimentation chamber and installed on it fan, wherein each fan with its settling chamber is connected by confusor, i.e. pipes of rectangular cross-section tapering from width of settling chamber to inlet of fan, wherein in each confusor there is a device which balances air speed in air channel. In each settling chamber the confuser is separated from the working volume of the sedimentation chamber by a partition which is interfaced with the confusor so that the confusor is built-in into the rectangular air duct.

EFFECT: high technological efficiency of separating light impurities from the settling chamber, as well as high operating efficiency of the entire pneumatic separating system of the grain cleaning machine.

1 cl, 1 dwg