Methods for treating fully mechanized coal mining face roof accidents through flexible air bags

A technology of fully mechanized mining face and flexible air bag, which is applied in mining equipment, earth-moving drilling, mining equipment and other directions, can solve the problems of many processes, long time and complex process.

Inactive Publication Date: 2018-02-13
KAILUAN ENERGY CHEM
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN103321654B discloses a method for treating coal mine roadway roof fall with a flexible air bag, which is a method for semi-permanent support in the roadway during excavation (that is, the air bag must be kept in good condition during the use of the roadway to achieve the purpose of long-term support

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  • Methods for treating fully mechanized coal mining face roof accidents through flexible air bags
  • Methods for treating fully mechanized coal mining face roof accidents through flexible air bags
  • Methods for treating fully mechanized coal mining face roof accidents through flexible air bags

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Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] see figure 1 , in the roof caving area of ​​the fully mechanized mining face, a space is formed on the top of the support, and the support cannot be connected to the roof. When the coal wall does not have a side or the distance between the sides is less than 1m, the roof cannot be effectively controlled, which may lead to the expansion of the scope of the roof fall, and it is necessary to build wooden piles When connecting to the roof, the flexible air bag can be used to inflate and pressurize it, so as to realize rapid roof connection, effectively control the roof, and prevent the aggravation of the roof fall. The specific operation steps are as follows:

[0043] (1) According to the actual range of the headspace in the roof fall area of ​​the fully mechanized mining face, select a suitable size and quantity of flexible airbags 3 and fold them i...

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Abstract

The invention relates to methods for treating fully mechanized coal mining face roof accidents through flexible air bags. The methods comprise the treatment method for fully mechanized coal mining face roof caving, the treatment method for fully mechanized coal mining face roof caving and wall caving, the treatment method for fully mechanized coal mining face coal wall cheek corner non-supporting,and the treatment method for fully mechanized coal mining face roadway wall non-supporting. According to the methods, the flexible air bags are adopted and are pressurized through air inflation to replace to cantilever slabs, driven nogs, backboards and driven columns to provide temporary support, and quick roof connection and wall sealing are ensured; and finally through timely pulling and moving of a support and control over a caved roof, a caved wall area, the coal wall cheek corners, the roadway walls and nearby surrounding rocks, the problems of fully mechanized coal mining face roof caving, the wall caving area, coal wall cheek corner non-supporting, roadway wall non-supporting and the like can be solved quickly, safely and reliably. The methods are simple, operation is easy, the effect is good, and the reliable guarantee is provided for construction safety; and the problems that as for existing methods, in the treating process, roof caving work and aloft work are needed, the construction technology is complex, the construction time is long, and the construction safety is difficult to guarantee are solved.

Description

technical field [0001] The invention relates to a method for treating a roof accident of a fully mechanized mining face, in particular to a method for treating a roof accident of a fully mechanized mining face with a flexible air bag. Background technique [0002] Roof caving, ledges, and hollows in fully-mechanized coal mines are one of the major disasters in coal mine production. Improper handling of the roadway roof in the area of ​​roof caving, ledges, and hollows in the roadway will easily cause the roof to collapse again, causing casualties and equipment damage. damage, affecting the safe production of coal mines. [0003] At present, domestic and foreign coal mines mainly use the following methods to deal with roadway roof caving, side splitting, and roadway side emptying: picking boards, stacking wood piles to connect the roof, bumping wedges, small board filling and inserting backs, etc. These methods require construction workers to work for a long time. When worki...

Claims

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Application Information

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IPC IPC(8): E21F17/00
CPCE21F17/00
Inventor 蔡晓光马建野许景存宁义国卞立国孙贺权刘殿平王志忠张学强刘明辉王春坡冯秀军于平衡
Owner KAILUAN ENERGY CHEM
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