Air curtain dust collection and removal system for fully mechanized excavation face

Abstract

The embodiment of the invention provides an air curtain dust collection and removal system for a fully-mechanized excavation face. The air curtain dust collection and removal system comprises an air curtain module and a pipeline module. The fan is started, generated high-pressure gas is conveyed to the jet flow modules through the air supply pipeline, the jet flow modules convert the high-pressure gas into high-pressure jet flow, an inner air curtain and an outer air curtain are formed, the air curtains separate a fully-mechanized excavation working area from a worker operation area, and meanwhile the draw-out type fan draws out dust on the fully-mechanized excavation working face through the draw-out type air duct. The purpose of dust control is achieved. The air curtain module is arranged in a circular arc shape and can adapt to a higher roadway, an inner air curtain and an outer air curtain with the better dust isolation effect are formed, the angle of the air curtain can be adjusted according to needs, the draw-out type air duct is placed in the inner air curtain formed by the air curtain module, and the effect of the efficient dust removal effect on the air curtain is reduced to the minimum.

Description

technical field [0001] The invention relates to the technical field of mining engineering ventilation and dust removal, in particular to an air curtain dust collection and dust removal system for fully mechanized excavation working faces. Background technique [0002] my country's coal mine excavation surface is seriously damaged by dust. Coal mine comprehensive roadheaders are widely used in coal mine excavation roadways, which generate a large amount of dust, which seriously affects the safety of mines and endangers the health of workers. At home and abroad, a lot of research has been done on the problem of dust prevention in fully mechanized excavation in coal mines. At present, the measures commonly used in the prevention and control of dust in the fully mechanized excavation face are: spray dust reduction technology inside and outside the unit, ventilation and dust removal technology, wet dust removal technology, and dust removal methods such as ejector dust collectors....

AI Technical Summary

Problems solved by technology

For some higher roadways, the air curtain cannot separate the work area from the driver's work area well, and dust will still spread to the driver's work area from the top of the roadway;

[0005] 2. The air curtain angle cannot be adjusted

[0006] 3. The influence of the withdrawable air duct

In order to achieve the dust removal effect, the draw-out air duct will be placed on the fully mechanized excavation face, but the placement of the draw-out air duct will affect the effect of the air curtain

If the draw-out air duct is placed on the side, far away from the fully mechanized excavation working face, the dust removal effect will be limited; if the draw-out air duct is placed near the front end of the fully mechanized excavation work face, it will affect the dust isolation effect of the air curtain

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