GRINDING TACKING FOR DISK MILL Russian patent published in 2018 - IPC B02C7/12 D21D1/30 

FIELD: desintegrators and crushing devices.

SUBSTANCE: invention relates to a grinding set for a disc mill and can be used for grinding various fibrous materials in the form of fiber suspensions with a concentration of 1–2 %. Grinding headset contains two mating knife rings of the stator and the rotor, provided with rectilinear radial knives. Blades are made in the form of truncated, evenly distributed, radial sectors alternating with the inter-groove radial grooves. Cutting edges of the knives are shaped like chamfers. Angle of slope of the bevels of the knives to the grinding knife plane of the rotor is 7…10°, while for the stator is 15…18°, while the width of the sides of the facets at the periphery of the disc is 0.1–0.2 of the width of the knife, and at the entrance is equal to 0.8–1.0 of the width of the knife.

EFFECT: grinding headset makes it possible to intensify the grinding process by ensuring that the planes of the bevels grip the knives.

1 cl, 4 dwg