AERODYNAMIC APPARATUS FOR DRYING BULK MATERIALS Russian patent published in 1999 - IPC

Abstract RU 2135916 C1

FIELD: agricultural engineering. SUBSTANCE: apparatus has fans 1, air distributors and drying boxes 5 arranged one below the other. Upper drying box has upper hopper and lower drying box is equipped with discharge device. Drying boxes are separated by perforated grids 12 into upper drying conveying channel and lower drying agent supplying channel. Active hollow overflow walls 18 are positioned above perforated grids at side adjacent to discharge windows. Cavities of walls 18 are in communication with compressed air source for providing additional action upon material. Upper perforated surface of wall 18 is made curved, with uniform curvature radius, to facilitate maintaining of uniform moisture content by stirring grain mass, returning it for recirculation and active stratification with following throwing of the material over wall 18. Surface of wall 18 faced to perforated grid has curvature gradually reducing to side reverse with respect to material conveying direction. EFFECT: intensified drying process, reduced power consumption and improved quality of material. 3 cl, 3 dwg

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RU 2 135 916 C1

Authors

Zimin E.M.

Volkhonov M.S.

Sidorov S.I.

Volkhonov S.S.

Berezovskij G.S.

Dates

1999-08-27Published

1997-08-06Filed