DISC MILL FOR GRAIN GRINDING Russian patent published in 2014 - IPC B02C7/18 

FIELD: agriculture.

SUBSTANCE: mill comprises a hopper, a housing with loading and unloading openings. Inside the housing the drive and passive discs are eccentrically mounted. The drive disc is cantilever fitted on the drive shaft and is provided with a central opening for loading of the ground material into the inter disc space. The passive disc located on the shaft fixed to the housing is mounted with the ability to rotate freely and change the eccentricity relative to the drive disc. The grinding surface of each disc consists of an inner (12), medium (13) and outer (14) belts with riffles. The grinding discs are equipped with radial channels (15) of constant diameter of different length parallel to diametrical disc axes with access to the grinding surface of the middle belt of the discs. The channels have windows (16) with the width equal to the diameter of the channel. The lateral sides of the channels and sides of the channels closest to the centre of the disc are formed perpendicular to the diametrical disc axes. The side (18) of the channel furthest from the centre of the discs is made at an angle to the bottom of the channel. Between the middle and outer belts of the discs the ring grooves are made of triangular cross section (19).

EFFECT: improving conditions of transfer of the ground product from the middle belts to the outer belts of the discs leads to more complete filling them and improves the performance of the mill.

5 dwg