CENTRIFUGAL DISK SHREDDER Russian patent published in 2020 - IPC B02C13/14 

FIELD: devices for grinding of material.

SUBSTANCE: disclosed is a centrifugal disk shredder comprising a cylindrical housing and oppositely rotating top and bottom disks. On top surface of lower disc and on lower surface of upper disc there are arc-shaped grooves of semicircular cross section, which are directed on lower and upper disks in opposite sides. Vertical gap between recesses of arc-like grooves of the lower and upper discs decreases from the center to the periphery. On upper surface of lower disk perpendicular to its surface from center to periphery is rigidly fixed concentric perforated rings, which height decreases from center to periphery in proportion to reduction of vertical gap between recesses of arc-shaped grooves of lower and upper disks. Holes in perforated rings are tapered with diameter of larger base on outer side of rings.

EFFECT: invention is aimed at improvement of grinding process efficiency.

1 cl, 4 dwg