DRUM MILL Russian patent published in 2022 - IPC B02C17/00 

FIELD: materials grinding.

SUBSTANCE: invention relates to devices for grinding various materials and can be used in the building materials industry in the production of cement. The drum mill contains a housing 1 mounted on hollow loading 2 and unloading 3 trunnions. In the case 1, discs 4-21 pressed against each other with holes and grooves made on the surfaces of the discs 4-21 are freely placed. The grooves are made spiral, while on the adjacent surfaces of the discs are directed towards each other. The depth and width of the spiral grooves on each subsequent disk 4-21 in the direction from the boot 2 to the unloading pin 3 decreases, and the number of spiral grooves increases. Aspiration holes in each disk 4-21 are made in its central part. A perforated outlet grate 40 is installed in the housing 1 of the mill.

EFFECT: drum mill provides an increase in the efficiency of the grinding process and the productivity of the finished product.

1 cl, 7 dwg