Coal mine underground dust removal device and dust removal method

Abstract

The invention relates to a coal mine underground dust removal device, and belongs to the field of dust removal. The coal mine underground dust removal device and dust removal method comprise an ejector, a pneumatic fan, a mixing cylinder, a dust removal chamber, a filter polygonal cylinder, an outlet chamber and a movable bracket, wherein the air flow is used to drive the pneumatic fan to rotate from an air flow inlet and a compressed air inlet; an air injection of a dry mist nozzle is carried out by the ejector, the water flow is connected with the dry mist nozzle, a spray is formed in the pneumatic fan, and the mixing cylinder and the dust removal chamber through the gas-liquid mixing; polluted air is sucked into the cylinder from the outside; at the same time, the air flow in the ejector ejects the polluted air from the air inlet to the dust removal chamber; through the dust removal by the adsorption of the dry mist, the dust removal of the polygonal net filter cylinder, and the dedusted air enters the outlet chamber through a filter cylinder outlet to be discharged finally; and the filter cylinder rotates while the aircurrent enters, and dust particles attached on the filter cylinder net is dropped into a dust discharge groove and discharged from a dust discharge opening. The coal mine underground dust removal device and the dust removal method are high in dust removal efficiency, small in volume, convenient to operate, capable of moving, simple in structure, low in dust removal, and the respirable dust is thoroughly treated.

Description

technical field [0001] The invention relates to a dust removal device and a dust removal method, in particular to an underground dust removal device and a dust removal method used in underground mining. Background technique [0002] Coal mine dust is one of the disasters of underground coal mine mining. During the process of tunneling or mining, the greater the dust, the lower the visibility, which will affect the operation of workers, and prone to operational errors, resulting in industrial accidents. At the same time, the existence of dust will accelerate the wear of bearings and gear equipment, block equipment, pollute hydraulic oil and lubricating oil, reduce the service life of equipment, and increase equipment maintenance costs. The respirable dust produced during the mining process is very harmful to human health, and often makes operators suffer from pneumoconiosis. And when the dust concentration reaches 35mg / m 3 When there is enough ignition energy, a coal dust e...

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Problems solved by technology

The particle size of the spray dust is large, and the working space is limited, the dust removal efficiency is not high, and the treatment of the respirable dust that is extremely harmful to the human body is not thorough; although the filter bag dust removal is very effective for the dust removal of the respirable dust, it is limited by the roadway space. At the same time, there is a problem of dust removal; and by increasing the air volume, the dust-laden air can be diluted, but the effect is not obvious, and it is difficult to increase the air volume due to the limitation of compressed air and power

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