CHAMBER GRINDER Russian patent published in 2021 - IPC B02C19/06 B02C23/02 

FIELD: chemical, mining, and construction industries.

SUBSTANCE: invention relates to devices designed for fine grinding of materials in the chemical industry, mining industry, in the construction industry in the production of dry building mixtures as well as in other industries where the production conditions require fine grinding and activation of bulk materials. The grinder has bunkers (1) of the source material with material pipelines (2) for supplying material with counter flows into the grinding chamber (6), two sluice catapults (3) with drives (4). The upper sides of the sluice catapults (3) for the entry of the original bulk material from the bunkers (1) through the material pipelines (2) into the sluice chamber are as close as possible to the shell holes with a diameter of 0.5 shell radius. In this case, the sluice catapults (3) are coaxially attached to the grinding chamber (6) with outlet nozzles for ejection through them into the grinding chamber (6) of the starting material with counter flows at a speed of more than 100 m / sec. A vacuum wire (7) is fixed to the upper part of the grinding chamber (6) for taking the finished product from the grinding chamber (6) through the precipitator (8) into the storage tank (9) of the finished product. A collector (10) and a hoist (11) are connected to the lower part of the grinding chamber (6) to return the uncrushed product to the bunker (1) of the starting material.

EFFECT: grinder ensures expansion of technological possibilities.

3 cl, 4 dwg