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

FIELD: agriculture and other branches of industry. SUBSTANCE: apparatus has charging hopper, first aspiration channel and second aspiration channel communicated with settling chambers, and two sieve shoes with pans. Both sieve shoes have two tiers of sieves. Grain pans are positioned under upper sieve of first sieve shoe. Outlets of sieve part of second tier and of pan of first sieve shoe are connected with upper and lower tiers of second shoe sieves through additional grain pans, respectively. EFFECT: increased efficiency by high-quality separation of grain mixture into fractions for further cleaning of fractions on separating working tools. 1 dwg