DEVICE FOR PNEUMATICALLY SEPARATING AND CLEANING GRAIN MATERIALS Russian patent published in 2018 - IPC B07B4/00 B07B7/00 

FIELD: agriculture.

SUBSTANCE: device for pneumatically separating and cleaning grain materials includes a fan, a sluice gate, in the housing of which an inlet and an outlet window and a rotating blade drum, connected to one another by radius walls, are located, at least one control valve, a separator equipped in the upper part with an inlet branch pipe for airmix and an exhaust branch pipe connected to the suction branch pipe of the fan, and in the lower part - with an unloading window connected to the inlet window of the sluice gate, and a bypass channel and a pneumatic separating channel, the lower and upper parts of which are separated by an input device, connected to each other and to the separator. The lower part of the pneumatic separating channel is located under the outlet window of the sluice gate. The inlet and outlet windows of the sluice gate are offset in different directions in such a way that the radius wall connecting them covers half or part of the drum, located under the inlet window of the sluice gate. The control valve is located in the housing of the sluice gate above its outlet window above the drum axis, and forms with the latter the bypass channel. The blade drum serves as an input device for the pneumatic separating channel. The pneumatic separating channel via the bypass channel is connected to the exhaust branch pipe of the separator and/or the suction branch pipe of the fan in bypass of the separator.

EFFECT: increased efficiency of separating and cleaning grain materials, simplifying the device design.

2 cl, 3 dwg