METHOD FOR GRAIN DRYING IN COLUMN-TYPE DRIERS Russian patent published in 1994 - IPC

FIELD: agriculture. SUBSTANCE: method consists in grain preheating, blowing through gravitationally moving grain layer with drying agent, discharge of worked drying agent and its repeated use. In this case, worked drying agent is separated into two flows, one of which constituting 65-70% of total flow is taken from upper part of drying column and directed for grain preheating, and other flow is discharged from lower part of drying column and cleaned, mixed with ambient air, heated and again fed to drying column. EFFECT: higher efficiency. 1 dwg