A Safe and Clean Ventilation System Applicable to the Mining Face of the Roof Cutting and Pressure Relief 110 Method

A roof cutting pressure relief and ventilation system technology, applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc., can solve the problems of personnel health impact, toxic and harmful gas concentration exceeding the limit, and high dust concentration in the operation area. To achieve the effect of eliminating the concentration of toxic and harmful gases exceeding the limit, reducing the risk of spontaneous combustion of coal residues, and preventing gas disasters and accidents
CN109083674BActive Publication Date: 2019-11-12CHINA UNIV OF MINING & TECH (BEIJING) +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH (BEIJING)
Publication Date
2019-11-12

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Abstract

The invention discloses a safe and clean ventilating system suitable for a top cutting pressure relief construction method 110 mining working face. The safe and clean ventilating system comprises a mining area air return downhill roadway and a mining area belt downhill roadway, the right wing recovery working face is arranged on the right side of the mining area belt downhill roadway, a right boundary track downhill roadway is arranged on a mining area right boundary position, a mine is provided with a track main roadway, a belt main roadway and a total air return way, the mining area belt downhill roadway is communicated with the belt main roadway, the right boundary track downhill roadway is communicated with the track main roadway, and the mining area air return downhill roadway is communicated with the total air return way; the right wing recovery working face comprises a recovery-completed working face, an in-mining working face and a to-be-mined working face, when mining of the in-mining working face is performed, the mining area belt downhill roadway is sequentially communicated with a first air inlet roadway of the in-mining working face, the recovery working face, an air return roadway and the mining area air return downhill roadway, and the right boundary track downhill roadway is communicated with a second air inlet roadway. The safe and clean ventilating system canreduce air leakage of a gob region, improve the working environment and eliminate corner gas accumulation.
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Description

technical field

[0001] The invention belongs to the technical field of mining by the 110 method of roof cutting and pressure relief in coal mines, and in particular relates to a safe and clean ventilation system suitable for mining working faces by the 110 method of roof cutting and pressure relief. Background technique

[0002] In the process of coal mining, the traditional wall and pillar coal mining methods need to dig a large number of roadways to ensure mine ventilation and material transportation. In order to protect the roadway and prevent the roadway from collapsing, a large number of coal pillars need to be reserved in the planning of the working face. As a result, a large amount of coal resources are left underground, and the recovery rate of underground coal mines is often only 50%-70%. The existence of underground coal pillars leads to the waste of a large amount of coal resources and the increase of mining costs. Use is extremely disadvantageous.

[0003] In or...

Claims

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