SEED CLEANING UNIT Russian patent published in 2006 - IPC A01F12/44 B07B9/00 

FIELD: agricultural engineering.

SUBSTANCE: seed cleaning unit has feeding hopper, charging bucket elevator, primary, secondary and final cleaning machines, hoppers for forage and cleaned seeds. Primary cleaning machine has air-cleaning part and four sieve shoes. Secondary cleaning machines have air-cleaning parts and sieve shoes with three tiers of sieves. Transverse chutes of second sieve trays for primary cleaning machine are connected through conveyor apparatus with charging bucket elevator. Tails sieves of middle tier sieves of each secondary cleaning machine are coupled to final cleaning machine of one line, and tails sieves of lower tier sieves are coupled to additional hopper for cleaned seeds or to final cleaning machine of other line.

EFFECT: increased yield of seed material and cleaned seeds.

1 dwg