Method for supporting triangular area in coal mine support-dismantling process

A technology for triangular area and coal mine, which is applied to the roof beam, mining equipment, earth-moving drilling, etc. to support the roof of the mine. , the effect of reducing physical exertion

Active Publication Date: 2011-04-06
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low efficiency of the maintenance method for the roof of the space of the fully-mechanized mining face

Method used

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  • Method for supporting triangular area in coal mine support-dismantling process
  • Method for supporting triangular area in coal mine support-dismantling process
  • Method for supporting triangular area in coal mine support-dismantling process

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Embodiment Construction

[0012] Such as image 3 , 4 As shown in the diagram, a support method for the triangular area of ​​a coal mine is provided. Three protective frames 4, 5, and 7 are set in the triangular area. After each support 1 is withdrawn, two cantilevered sheds are erected at the original support position in the direction of the vertical protective frame. The 9 beams of the canopy are about 750±50mm away from the top beam of the next support to be removed, and the distance between the 9 beams of the two canopies is 750±50mm, which is supported by three columns (each canopy beam is cut from the side beam end of the old pond to the support to be removed) The top line is basically flush, supported by two single columns with a column distance of 400-800mm at the same time, and the other side is supported by a single column at a distance of 1-1.5m from the end of the beam, and at the same time, it must be ensured that this end can be covered in the middle The length on the front beam of the f...

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Abstract

The invention relates to a moving and recycling method of comprehensive collecting equipment, in particular to a method for supporting a triangular area in a coal mine support-dismantling process and solves the problem of low efficiency of a maintenance method of a support-dismantling space top plate in a support-dismantling process of the traditional comprehensive collecting working face. Three shielding frames are arranged at the original triangular area; after a support is dismantled, two frame canopies are arranged at the place of the original support in a direction vertical to the shielding frames; three columns are used for supporting; plate beams are used for supporting above a single column, and then the shielding frames are drawn, wherein the drawing sequence of the shielding frames is that: the shielding frame close to a coal upper side is drawn firstly to bear the plate beams on the front ends of the supports to be dismantled, after chocks are piled behind the shielding frame and the shielding frame is returned to the back of a coal upper column, the middle shielding frame is drawn secondly to make the ends of the beams bear the plate beams in the triangular area, and the shielding frame close to an old pond side is drawn finally to bear the plate beams; and after an old pond and the single column affecting the dismantling of the support are returned back, the supporting and circulating process of shielding the support is finished. By the method, the working efficiency is improved and materials are saved.

Description

technical field [0001] The invention relates to a method for moving and recovering fully mechanized mining equipment, in particular to a method for supporting a triangular area of ​​a coal mine. Background technique [0002] In the process of moving or recovering fully mechanized mining equipment, the safe and smooth removal of the hydraulic support is the key to the smooth progress of the entire project, and the maintenance of the roof in the triangle area of ​​the removal of the support is the focus of the removal of the hydraulic support. Therefore, it is of great significance to improve the support method of the triangular area of ​​the removal frame for the smooth progress of the moving or recycling project. [0003] In the previous process of removing the frame in the fully mechanized mining face, the maintenance method for the roof of the frame removal space is usually a combination of two shield frames and a single column in the triangular area. Such as figure 1 , ...

Claims

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Application Information

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IPC IPC(8): E21D11/00E21D15/00E21D17/00
Inventor 郭家红李虎旦郭小占岳继国闫胜桥
Owner SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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