FIELD: heating, drying.
SUBSTANCE: method of grain drying provides for incomplete grain drying not to normal amount of moisture, but binning and cooling in outer air flow to normal moisture content and unloading. The novel element is the invention is that the grain is binned in flow during the period derived from the formula: 
where τrd - period of moisture re-distribution between single seeds while grain is binned in solid layer, in hours; τu, τc - respectively, period of unloading cycles and total period of dryer operation cycle, in hours. Facility for grain drying consists of a housing with perforated walls, tapered bottom, air-distributing pipe, piston, level meters and fan. The novel element is that top level meters altitude ht is defined from formula: 
where G - dryer output, t/h; γ - volumetric weight of grain, t/m3; F - cross section area of chamber with grain, m2; τfl - binning period in flow, in hours.
EFFECT: improvement of grain drying efficiency and binning process implementation in flow.
2 cl, 1 dwg
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|
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