APPARATUS FOR SEPARATING GRAIN MIXTURE INTO FRACTIONS Russian patent published in 2002 - IPC

FIELD: agriculture. SUBSTANCE: apparatus has charging hopper, first and second aspiration channels, sieve shoe, trays and grain pan. First and second aspiration channels are connected to settling chamber. Sieve shoe has upper, middle and lower tier sieves. Trays are located under upper tier sieve outlet part and under middle tier sieve inlet part. Grain pan connects leading end of lower tier sieve to tailing end of middle tier sieve. EFFECT: increased efficiency and improved quality of separating grain material into fractions. 1 dwg