GRAIN CRUSHER WITH SEPARATION Russian patent published in 2016 - IPC B02C13/02 B02C13/286 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural industry, specifically, to machines for grinding of components of mixed fodder. Grain crusher comprises housing (1), loading pipe (3) with magnet (4), discharge pipe (19), grinding chamber (5) with hammer rotor (6), screen (7) and fan (18). Fan is installed into a separate ventilation chamber (21) of housing. Ventilation chamber is formed by partition (11) with a hole in centre. Crusher comprises ribbing in form of truncated cone (9). Between grinding chamber and ventilation chamber there is one more separation chamber (8). Separation chamber is separated by partitions (10, 11). Drum of separation chamber (13) is installed on rotor shaft (12) of engine (2). Cylinder of drum is made in form of screen (14) with holes. On outer side of drum there are transverse blades (16). Drum comprises screen (15) with holes on side of fan. In ventilation chamber there is one more discharge pipe (17). Fan sucks dust fraction through a screen of drum in evacuation chamber (20). Uniformity of granulometric composition of ground material is achieved by separating oveground and dust-like fraction of crushed grain.

EFFECT: invention improves quality of preparation of feedstuffs and fodder digestibility by animals and birds.

1 cl, 3 dwg