Dust removing system for fully-mechanized coal mining workface

Abstract

The invention discloses a dust removing system for a fully-mechanized coal mining workface. The system includes a dust control system installed on one side of a roadheader, a dust suction system and a dust collecting system installed on the other side of the roadheader, wherein the dust control system comprises a press-in type fan, a press-in type air duct and a wall-attached air duct which are connected with each other in turns; the dust suction system comprises a first suction hood for sucking dust on the cutting head position of the roadheader, a second suction hood for sucking dust on the insertion board position of the roadheader, a third suction hood for sucking dust on the break-of-bulk-point position of a scraper conveyor and belt conveyor, a dust suction air duct and a suction hood assembly box, and the first suction hood, the second suction hood, the third suction hood and the dust suction air duct are all connected to the suction hood assembly box; the dust collecting system comprises an extraction type air duct, a dust remover and an extraction type fan which are connected with each other in turns, and the extraction type air duct is connected to the suction hood assembly box. The dust removing system for the fully-mechanized coal mining workface can effectively control diffusing and spreading of dust in underground roadways, has a good dust suction effect and high dust collecting efficiency, and can greatly reduce the dust concentration of the fully-mechanized coal mining workface.

Description

technical field [0001] The invention relates to the technical field of dust removal in coal mines, in particular to a dust removal system for fully mechanized excavation working faces in coal mines. Background technique [0002] Fully mechanized excavation working face is one of the main dust-producing points in coal mines. With the continuous improvement of coal mining mechanization and the widespread use of high-efficiency and high-power roadheaders, the mine mining intensity is increasing, and the dust in fully mechanized excavation working face The sharp increase in production has seriously affected the health of workers and threatened the safe production of mines. The coal seam occurrence conditions in my country are complex and the production process is very different. Especially in the underground fully mechanized excavation working face, there are problems such as large dust generation, high concentration, and difficult ventilation. A large amount of dust is suspende...

AI Technical Summary

Problems solved by technology

However, the application of dust curtain and net-enclosed dust removal technology will affect the roadheader driver's sight and operation of the roadheader, and the air curtain closed dust removal process will also bring noise pollution and affect the operation of the roadheader.

At the position of the mining face, the wind blows directly to the fully mechanized excavation face of the coal mine, and a lot of dust cannot be sucked away by the dust removal fan. In addition, the coal mine mechanized excavation produces a large amount of dust, high concentration, high dispersion, and the ventilation is difficult. The distribution of dust sources at dust production points is not concentrated, and the traditional dust collection methods cannot effectively collect dust, and the dust removal effect is poor

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