Heading face dry dust removing system with follow-up air duct support

Abstract

A heading face dry dust removing system with a follow-up air duct support comprises a heading machine (1), a reversed loader (2), a movable rack (3), a belt conveyor (4), a dry filter dust remover (5), an extraction type fan (6), a dust suction hood (7), a negative pressure air duct (8), a support rack (9), a suspension slideway (10) and a suspension support (12), wherein the suspension support is fixed at the tail of the belt conveyor, the suspension slideway is suspended on the suspension support, and pulleys (11) matched with the suspension slideway are mounted in the suspension slideway; the negative pressure air duct is divided into a fixed section connected with the dust suction hood and a telescopic section connected with the dry filter dust remover, the fixed section is fixed on the reversed loader through the support rack, and the telescopic section is suspended onto the suspension slideway through the pulleys. The heading face dry dust removing system has the advantages that high dust removing efficiency is coordinated with a heading process, the negative pressure air duct can move along with the heading machine, the work intensity of miners is lowered, the work efficiency of the miners is increased, and time and labor are saved.

Description

technical field [0001] The invention relates to a dust removal system, in particular to a dry dust removal system for an excavation face with a follower air duct support, and belongs to the technical field of mine roadway ventilation and safety. Background technique [0002] Due to factors such as narrow space, limited ventilation, and large dust production in underground working spaces such as coal mines and railway and highway tunnels, the dust concentration in the working space is high, which deteriorates the working environment and endangers the health of workers. With the improvement of coal mining mechanization, dust pollution in coal mine excavation work is particularly serious. However, the dust removal effect of traditional dust removal methods is poor. For example, spraying water not only has a weak ability to capture respirable dust, consumes a lot of water resources, but also causes secondary pollution to the working environment; foam dust removal agents are more...

AI Technical Summary

Problems solved by technology

However, the dust removal effect of traditional dust removal methods is poor. For example, spraying water not only has a weak ability to capture respirable dust, consumes a lot of water resources, but also causes secondary pollution to the working environment; foam dust removal agents are more expensive, and later investment is larger , and the foam will obstruct the driver's sight while covering the dust source, affecting the driver's work; ventilation and dust removal can only allow the dust to diffuse to the back of the roadway with the wind direction, and cannot essentially eliminate the dust source

At present, as people pay more attention to their own health, dry filter dust collectors are widely recognized for their high-efficiency dust removal advantages. Large size makes it difficult for dry filter dust collectors to be conveniently used

[0003] The patent with the publication number CN105525939A discloses a dry filter and dust removal system for roadway excavation working face. The negative pressure air cylinder in this system is suspended on the top of the roadway by monorail crane. When the machine, dry filter and dust collector and extractor fan move forward, they cannot move forward because the monorail crane is suspended on the top of the roadway. Miners need to remove the monorail crane and install it to the front. However, the roadway is generally as high as 3m Left and right, in addition, there is a steel ring skeleton inside the negative pressure air duct, which is heavy, which makes it inconvenient for miners to operate, time-consuming and laborious. The disassembly, assembly and hanging process of the monorail crane increases the work intensity of the miners and reduces the work efficiency.

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