Mine tunneling working face dust control and removal device and use method

Abstract

The invention discloses a mine tunneling working face dust control and removal device and a use method. The mine tunneling working face dust control and removal device comprises a dust collection chamber, a plurality of pressurizing and mixing chambers and a purifying device. The plurality of pressurizing and mixing chambers are installed in the dust collection chamber and the purifying device. Every two adjacent pressurizing and mixing chambers are connected through a dust exhaust air duct. The outer circumferential surface of each pressurizing and mixing chamber is provided with a fixing support for the dust control and removal device. Gas is primarily pressurized through a plurality of gas pressurizing nozzles, then gas is secondarily accelerated and pressurized through the pressurizingand mixing chambers, and meanwhile negative pressure is generated to automatically suck dust and air around the dust collection chambers into the pressurizing and mixing chambers. Due to two times ofpressurizing, dust suction and collection capacity of the dust control and removal device is increased; sucked-in dust and air collide in convergence inner walls at the rear portions of the inner walls of the pressurizing and mixing chambers, and dust and air are sufficiently mixed; and due to spray shield generated by high-pressure spray nozzles, dust humidity is increased, dust wetted by waterenters the purifying device, the air quality in a long-distance excavation roadway is greatly guaranteed, and health of workers is guaranteed.

Description

technical field [0001] The invention belongs to the technical fields of coal mine safety and mine dust control and dedusting, and in particular relates to a dust control and dedusting device for a mine excavation working face and a use method thereof. Background technique [0002] As one of the five major disasters in mines, dust disasters seriously affect the health of workers and threaten mine safety. At present, due to the production technology, a large amount of dust is generated in the mine excavation face, especially in the long-distance excavation roadway with a single head, the wind flow is easy to gather, and the dust concentration in some areas of the roadway is very high. Coal miners have been exposed to working environments containing coal dust and rock dust for a long time, and are prone to lung diseases such as pneumoconiosis and silicosis, which affect their health. On the other hand, a large amount of combustible dust (coal dust) is suspended in the excavati...

AI Technical Summary

Problems solved by technology

And it is necessary to lay special air ducts in the air inlet tunnel and the air return tunnel respectively, which requires a huge amount of work and is inconvenient to operate

Due to the requirements of engineering characteristics, this equipment is not suitable for single-head long-distance excavation roadway

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