Coal mining method with direct coal pillar recovery

A coal mining method and coal pillar technology, applied in the field of coal pillar direct recovery coal mining method, can solve problems such as low resource recovery rate, achieve large roadway deformation, avoid waste of resources, and improve safety

Active Publication Date: 2010-06-23
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low resource recovery rate existing in the existing coal mini

Method used

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  • Coal mining method with direct coal pillar recovery
  • Coal mining method with direct coal pillar recovery
  • Coal mining method with direct coal pillar recovery

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Experimental program
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Embodiment Construction

[0021] Such as figure 1 As shown, a coal mining method for direct recovery of coal pillars, specifically:

[0022] 1. On both sides of the large-width working face 10 of coal mining, set up a trough roadway 2 and 6, one of which is used as a belt transport and air inlet lane 2, and the other is used as a return air lane 6 or an air inlet lane according to the design of the ventilation system ; The two outer sides of the tunnel roadway 6 are left as continuous isolated coal pillars 9,

[0023] 2. Arrange the rest of the ventilation lanes and auxiliary lanes 8 and 7 between the two sides of the above-mentioned working face along the trough lanes 2 and 6 according to the needs. Coal pillars and corresponding ventilation methods,

[0024] 3. Arrange coal mining equipment in front of the large-width working face 10 between the two down-trough roadways 2 and 6: scraper conveyor and coal shearer 13,

[0025] 4. Manipulate the shearer 13 to cut coal from one side of the large-width...

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Abstract

The invention relates to a coal mining method, in particular to a coal mining method with direct coal pillar recovery, full-width heading of the coal pillar in a stope and arrangement of a single coal curtain between adjacent working surfaces, which solves the problem of low resource recovery rate in the prior coal mining technology. The coal mining method comprises the following steps: firstly, arranging a gate roadway respectively on the two sides of the large-width coal mining working surface; secondly, arranging the rest ventilation connections and service roadways between the gate roadways on the two sides of the working surface according to the need; thirdly, arranging coal mining equipment along the large-width working surface between the two gate roadways; fourthly, operating a coal cutter to cut coal from one side of the large-width working surface to the to the other side thereof. The involved coal curtains can be all mined once. Accordingly, the coal in the entire large-width working surface can be all cut out; the essence of the coal mining method is to move the coal pillars into the heading range of the working surface and changing non-mineability into direct mining.

Description

technical field [0001] The invention relates to a coal mining method, in particular to a coal pillar direct recovery coal mining method in which a coal pillar is advanced in full width in a mining working face and a single isolated coal pillar is left between adjacent working faces. Background technique [0002] With the continuous improvement of mechanization, large scale and automation of coal mine equipment, my country's coal mining methods have experienced room and pillar mining, high-grade general mining, fully mechanized mining, layered mechanized mining, top coal caving, and the latest high mining height once The full-height coal mining method has made great progress, and the resource recovery rate of the mine has gradually increased with the improvement of the coal mining method, and better economic benefits have been achieved. However, the current coal mining method still wastes a lot of resources in terms of resource utilization. Even if the most advanced full-heigh...

Claims

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Application Information

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IPC IPC(8): E21C41/16E21F1/00
Inventor 闫振东杨栋赵旭东程建祯
Owner SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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