A double-screw blowing-suction gathering fog curtain dust control device suitable for roadheaders

Abstract

A double-helix blowing-suction gathering-type fog curtain dust control device suitable for roadheaders, including a cyclone blowing system, a high-pressure spray system, a fog curtain dust isolation system and a filter water bath dust removal system; The single wind flow is dispersed into multiple uniform wind flows through the air delivery hose and the blowing pipe to form a whirlwind flow field, which is superimposed with the whirlwind flow field formed by the counterclockwise rotation of the rotating blades of the aerodynamic vortex fog screen to form a double helix whirlwind flow field, and then Use the negative pressure generated by the high-pressure exhaust fan to suck the dust into the suction pipe. The captured dust enters the filter dust collector through the suction pipe to remove the large particle size dust, and then removes the small particle size dust through the water bath dust collector. The high pressure spray system uses the magnetized water device to purify the water quality, and uses the high pressure nozzle to spray the tunneling face to reduce dust. And use the coercion effect of the double helix cyclone flow field to enhance the collision probability with the dust and improve the dust removal efficiency.

Description

technical field [0001] The invention is an underground coal mine roadway dust control technology, which belongs to the technical field of roadway dust removal, and in particular relates to a double-screw blowing-suction gathering type fog curtain dust control device suitable for roadheaders. Background technique [0002] A large amount of dust is generated during the tunneling of underground coal mines, and a large number of respirable dust particles are suspended in the air, which not only reduces the work efficiency of the staff, but also seriously threatens the life and health of the staff, especially the harm of respirable dust to the human body. harm. [0003] At present, the flour dust control of roadheading work in my country mainly adopts two methods of spraying inside and outside the roadheader to reduce dust. The spray inside the roadheader is to remove dust at the source of the cutting dust produced by the roadheader, which has a good dust removal effect. On the h...

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Problems solved by technology

[0003] At present, the flour dust control of roadheading work in my country mainly adopts two methods of spraying inside and outside the roadheader to reduce dust. The spray inside the roadheader is to remove dust at the source of the cutting dust produced by the roadheader, which has a good dust removal effect. On the helical line of the head pick, the nozzle is easy to block and the service life is short

[0004] The external spraying system of the roadheader is simple in process and easy to install, but the amount of dust will be particularly large when the large-section whole-rock roadway is excavated. The single external spraying system of the roadheader is insufficient for dust treatment and cannot meet the requirements of coal mine safety regulations.

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