DEVICE FOR SEPARATING GRAIN MIXTURES Russian patent published in 2006 - IPC B07B1/22 B07B1/46 

FIELD: agriculture engineering.

SUBSTANCE: device comprises hopper, driving cylindrical drum provided with bent blades, receiver for fine and coarse fractions, and screw mounted coaxially with respect to the drum. The blades are secured to the inner side of the drum and made of comb-like members provided with teeth made of triangle prismatic rods whose ribs define a screen. The free ends of the blades face the inlet part of the working surface of the screw and bent in the direction of rotation of the drum. The distance between the teeth in the comb should be 1.4-1.6d, where d is the averaged diameter of grains.

EFFECT: enhanced efficiency.

1 cl, 4 dwg, 1 tbl