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Mining system and mining method of pseudo-dipping layout in steeply inclined coal seam mining area

A pseudo-incline and steep inclination technology, applied in ground mining, mining equipment, underground mining, etc., can solve problems such as high degree of equipment dependence, limited working face length, flying gangue on the working face, etc., to achieve long-term operation, The effect of improving ventilation conditions and coal mining safety, and reducing the time for transportation and installation

Active Publication Date: 2022-03-15
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current production practice, the mining methods of steeply inclined coal seams mainly adopt inverted bench longwall mining method, short-wall horizontal layered mining, pseudo-inclined longwall mining method, fully mechanized mining with large dip angle, etc., but these mining methods There is a high degree of dependence on the equipment in the working face, the equipment is easy to slip, the phenomenon of gangue flying in the working face is serious, and the length of the working face is limited, and the problems of low mining efficiency are still difficult to solve

Method used

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  • Mining system and mining method of pseudo-dipping layout in steeply inclined coal seam mining area
  • Mining system and mining method of pseudo-dipping layout in steeply inclined coal seam mining area

Examples

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Embodiment 1

[0034] Example 1 A mining system with pseudo-inclined layout in a steeply inclined coal seam mining area

[0035] Such as figure 1 As shown, this embodiment includes a working face 6, a transport lane 4, a return air lane 5, a return wind uphill 3 and a transport uphill 2, wherein the working face 6 is arranged in a pseudo-sloping manner with the upper end ahead, and the working face 6 is provided with The coal mining machine, the scraper conveyor and the hydraulic support used for support, the advancing direction of the working face 6 is backwardly advancing along the direction perpendicular to the working face 6 . In this embodiment, the scraper conveyor is used to transport the coal mined by the shearer to the transportation lane 4. The hydraulic support can effectively control the deformation of the coal wall and roof in front, and prevent the occurrence of sidewalls and roof fall. The advancement of working face 6 adopts retreat mining, that is, the advancing direction ...

Embodiment 2

[0045] Example 2 A mining method of pseudo-sloping layout in a steeply inclined coal seam mining area

[0046] According to Embodiment 1, this embodiment provides a mining method for a pseudo-inclined mining area in a steeply inclined coal seam, including the following steps:

[0047] S1. Coal is mined by a shearer on the working face 6, and the coal is transported to the transport lane 4 by a scraper conveyor;

[0048] S2. The coal mined at the working face 6 passes through the transport lane 4 and then passes through the coal sliding hole 8, enters the transport uphill 2, and then transports the coal out;

[0049]Among them, the ventilation is continued during steps S1 and S2, and the ventilation route is as follows: the fresh air flows through the transportation uphill 2 and enters the transportation alley 4 along the Shimen 9, and then enters the working face 6, becomes dirty air and enters the return air uphill through the return air alley 5 3. The continuous ventilatio...

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Abstract

The invention belongs to the technical field of steeply inclined coal seam mining, and discloses a mining system with pseudo-inclination arrangement in a steeply inclined coal seam mining area, including a working face, a transport lane, a return air lane, a return air uphill and a transport uphill, and the working face is arranged according to a pseudo-depression The upper end is arranged in an oblique manner, and the working face is equipped with a shearer, a scraper conveyor and a hydraulic support for support; the invention also discloses a mining system with a pseudo-inclined arrangement in the mining area of ​​the steeply inclined coal seam mining method. The present invention arranges the transport lane and the air return lane vertically to the direction of the working face respectively, reduces the angle between the working face and the horizontal plane, and improves the coal mining output, mining efficiency and coal mining safety of the working face.

Description

technical field [0001] The invention belongs to the technical field of steeply inclined coal seam mining, and in particular relates to a mining system and mining method with pseudo-inclined arrangement in a steeply inclined coal seam mining area. Background technique [0002] Steeply inclined coal seam refers to a coal seam with an inclination angle greater than 45°. my country has huge reserves of steeply inclined coal seams, which are usually distributed in western regions such as Sichuan, Xinjiang, and Guizhou, and are often accompanied by thick coal seams and high calorific value. essential raw material. The mining method of steeply inclined coal seam resources has been continuously explored since the 1980s, and a series of achievements have been made in the aspects of working face layout, support equipment improvement, and roadway layout. In the current production practice, the mining methods of steeply inclined coal seams mainly adopt inverted bench longwall mining met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/18E21D9/14E21F1/00
CPCE21C41/18E21D9/14E21F1/006
Inventor 王家臣杨胜利唐岳松王兆会张锦旺李良晖
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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