GRAIN AND SEEDS AFTER HARVESTING TREATMENT METHOD Russian patent published in 1996 - IPC

FIELD: agriculture. SUBSTANCE: after preliminary and primary cleaning grain material is fed to secondary cleaning. In the case preliminary, primary and secondary cleanings are exercised by air-lattice machines. At stage of secondary cleaning grain material is separated by grain size for three fractions ( big-size, medium size and small size). Then produced big size and medium size fractions are separately treated by correspondingly wild oats and pupa grain cleaners. Cleaned from impurities big size, medium size and small size grain fractions are separately fed for drying in bunkers of active ventilation. Then big size and medium grain fractions are separately fed to final cleaning by air-lattice machines. EFFECT: increased quality of grain cleaning. 1 tbl