FIELD: agriculture.
SUBSTANCE: pneumatic system of grain cleaning machine consists of aspiration channels of preliminary and main cleaning assembled before grid part, of sedimentation chamber, of installed therein fan and throttle gates for regulating air flow rate in aspiration channels, of loading-distributing device, of located beneath it feeding roller, and of device for output of cleaned grain and wastes. A suction port of the channel of preliminary cleaning is situated between the loading distributing device and the feeding roller. The aspiration channels of preliminary and main cleaning in their upper part have common adjacent wall, on the edge of which there is installed the throttle gate.
EFFECT: upgraded quality of grain material cleaning and decreased dimensions of pneumatic system of grain cleaning machine.
1 dwg
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