A dust control and dust removal device for mine excavation working face and its application method

Abstract

A dust control and dust removal device for mine excavation working face and its use method, comprising a dust collecting chamber, a plurality of pressurized mixing chambers and a purification device; the dust collecting chamber and the purification device are equipped with a plurality of pressurized mixing chambers, adjacently pressurized The mixing chambers are all connected by dust exhaust air cylinders, and the round surface of the pressurized mixing chamber is provided with fixed brackets for dust control and dust removal devices. The first pressurization of the gas is completed through multiple gas booster nozzles, and then the second acceleration and pressurization of the gas is realized through the pressurized mixing chamber. At the same time, negative pressure is generated to automatically suck the dust and air around the dust collection chamber into the pressurized mixing chamber. The two times of pressurization increase the dust suction and dust collection capabilities of the present invention; the inhaled dust and air collide in the convergent inner wall at the rear of the pressurized mixing chamber to achieve full mixing of dust and air; the high-pressure water mist nozzle produces The water mist barrier increases the humidity of the dust, and the dust wetted by water enters the purification device, which greatly guarantees the air quality in the long-distance excavation roadway and protects the health of workers.

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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