PNEUMATIC SEPARATING APPARATUS OF GRAIN CLEANING MACHINE Russian patent published in 2002 - IPC

FIELD: agricultural production, flour milling, elevator and grain storage, feed mill industry. SUBSTANCE: apparatus for cleaning grain mixtures with air flow has two pneumatic separating systems with settling chambers, pneumatic separating and air supplying channels, charging devices arranged inside pneumatic separating channel walls, cross-flow fan arranged between pneumatic separating systems and equipped with suction window and delivery branch pipe. The latter is joined to first aspiration separating channel and communicated with additional channel defined by wall adjacent to cross-flow fan suction window. Delivery branch pipe of cross-flow fan is directly joined to baffle-type pneumatic supplying device which is communicated with air discharge channel via auxiliary channel defined by charging device wall and first separating channel wall. Adjusting gate is positioned on the latter. Charging device of first pneumatic separating channel is communicated via dust discharge channel with first aspiration settling chamber. Tilt surface of charging device of second pneumatic separating channel is communicated via suction channel with second aspiration settling chamber at point of delivery of ground, undersized and broken grain. EFFECT: simplified construction and improved grain cleaning quality. 1 dwg