FIELD: drying of grain by ecologically clean air. SUBSTANCE: drier has grain drying chamber with perforated top cover, perforated members arranged on upper part of chamber side walls, controllable gate mounted in front perforated members and adapted to cut off upward air flow during pneumatic grain discharge process. Reversal system for directing controlled portion of hot air in the form of ejected stream to compressor input is mounted in delivery air duct. EFFECT: increased efficiency, simplified construction and improved environment control. 5 cl, 9 dwg
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