TECHNOLOGICAL MODULE AND METHOD OF CLOSED GRINDING CYCLE Russian patent published in 2018 - IPC B02C23/00 

FIELD: separation; mixing.

SUBSTANCE: invention relates to the technique of fine dry grinding of solid materials, namely grinding in mills, and is intended for use in the chemical, metallurgical, construction, pharmaceutical and other industries. Method involves grinding the material in mill 1, and sorted - in centrifugal separator 3. Grinding of the material is carried out in three stages in one mill 1 with three grinding chambers 11, 12, 13. Wherein grinding of the coarse fraction of the material is carried out in upper chamber 11, grinding of the middle fraction of the material in middle chamber 12, and grinding of the fine fraction of the material in lower chamber 13. After each grinding stage, the material is sorted in centrifugal air-to-air separator 3 with two separation zones.

EFFECT: invention provides an increase in efficiency by improving the quality of the finished product.

1 cl, 1 dwg