DEVICE FOR MINE WORKING DUST TREATMENT Russian patent published in 2020 - IPC E21F5/10 

FIELD: mining.

SUBSTANCE: invention relates to mining, in particular to equipment for prevention of explosions of dust-air mixtures in coal mines hazardous by gas and dust, and is intended for application of inert dust on sides and roof of mine workings by mechanized method. Device includes a hopper, at least two spreaders and at least two windows in the hopper wall connecting the hopper inner volume with the spreaders. Each spreader is a centrifugal air compressor, the supply of which is connected to the window in the bin wall, and the end of the pressure pipe is connected to the angular shape chamber, which is limited by the upper wall, the outer wall, the bottom wall, the inner wall. Upper and outer walls of the chamber are made in the form of a confusor ending with an angular slot provided with a flow divider.

EFFECT: improving efficiency of mechanized mine working dust treatment in automatic mode, including in the presence of air flows in the mine working.

8 cl, 6 dwg