CENTRIFUGAL DISC GRINDER Russian patent published in 2023 - IPC B02C7/00 B02C13/20 

FIELD: material grinding.

SUBSTANCE: devices for grinding various materials, used in the production of construction materials, as well as in other industries The centrifugal disc grinder contains a cylindrical body 1 with loading 2 and unloading 3 branch pipes, oppositely rotating upper 4 and lower 5 discs. Radial rectilinear ribs 7 are rigidly fixed on the lower surface of upper conical disk 4. In the centre of lower horizontal disk 5, radial rectilinear ribs 8 and 9 of greater and lesser height, alternating one after another, are rigidly fixed, to the outer ends of which rectilinear radial ribs 10 of lower height, rigidly fixed on lower horizontal disk 5, adjoin. The vertical gap between the lower surface of upper conical disk 4 and the upper surface of lower horizontal disk 5 decreases uniformly from the centre of disks 4 and 5 to their periphery from (1.1… 1.2)D_max to (0.1… 0.5)D_max, where D_max is the maximum particle size of the crushed material. Between the radial rectilinear ribs 7 and 10 of the two disks 4 and 5 there is a process gap, and their height decreases towards the periphery in proportion to the decrease in the vertical gap between the surfaces of upper conical 4 disk and lower horizontal disk 5. In front of each radial rectilinear rib 10, adjacent to radial rectilinear rib 8 of greater height, in the direction of rotation of lower horizontal disk 5, on its upper surface there is radial groove 11 of rectangular cross section with a width exceeding 2D_max and a depth equal to (0.1… 0.2) D_max.

EFFECT: improving the efficiency of the grinding process.

1 cl, 4 dwg