GRAIN CLEANING MACHINE FOR CLEANING AND FRACTIONATION OF GRAIN MATERIAL Russian patent published in 2002 - IPC

FIELD: grain cleaning equipment. SUBSTANCE: machine has receiver, closed pneumatic system with cross-flow fan, charging window, air supplying channel and settling chamber. Feeding device is mounted in receiver. Supercharging branch pipe of cross-flow fan is joined through adjustable baffle-type member of feeding device to inclined pneumatic separating channel. Charging window is formed in upper wall of channel and devices for receiving grain material separation products are positioned in lower part of channel, in opposed relation to charging window. Rotary surfaces are pivotally fixed to walls of separation product receiving devices. Suction window of cross-flow fan is communicated with feeding device through baffle-type wall and with discharge devices of separation product receiving devices through dust discharge channel. EFFECT: improved quality of cleaning grain material, reduced power consumption and metal usage and improved working conditions. 1 dwg