Abandoned roadway timbering device and construction method of fully mechanized coal mining face passed through abandoned roadway

A technology of fully mechanized mining face and empty roadway, applied in mining equipment, temporary shield, ground mining and other directions, can solve the problem that the fully mechanized mining face cannot be guaranteed to quickly pass through large-section empty roadway, the economic benefits are poor, and the safety cannot be guaranteed. and other problems, to achieve the effect of shortening the passage time, improving the support strength, and reducing the accident of the roof falling in the roadway.

Active Publication Date: 2014-04-02
CHINA SHENHUA ENERGY CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above traditional methods of passing through the goblin cannot guarantee the rapid passage of the fully mechanized mining face through the large cross-section goblin due to poor economic benefits or no guarantee of safety.
Fully mechanized mining face passing through the gob has always been a technical problem that has not been solved well in coal mining, and there is no special reinforcement support equipment for the gob to help the fully mechanized mining face pass through the gob

Method used

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  • Abandoned roadway timbering device and construction method of fully mechanized coal mining face passed through abandoned roadway
  • Abandoned roadway timbering device and construction method of fully mechanized coal mining face passed through abandoned roadway
  • Abandoned roadway timbering device and construction method of fully mechanized coal mining face passed through abandoned roadway

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Embodiment Construction

[0028] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] The empty roadway is the roadway left in the middle of the mining face during the coal mining process. The fully mechanized mining working face is the recovery working face equipped with comprehensive mechanized equipment in the underground of the coal mine. The coal mining equipment is a shearer, and the transportation equipment of the working face is a flexible scraper conveyor. The roof support of the working face adopts hydraulic supports, and belt type conveyor.

[0030] Such as figure 1 As shown, the fully mechanized mining face 1 advances to the gob 2 along the direction of the arrow, so as to mine the coal seam in the gob 2 area, maximize coal mining, and avoid waste of resources. The place on the left side of the arrow or after the fully mechanized mining face 1 is pushed is the goaf 101, and the coal mining roadw...

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Abstract

The invention discloses an abandoned roadway timbering device which comprises a metal net, a steel belt, a protective net, timbering anchor ropes, hanging timbering anchor ropes, anchor rods and a hydraulic support. The steel belt is installed on a top plate of an abandoned roadway through multiple hanging timbering anchor ropes, the hanging timbering anchor ropes located at two ends of the steel belt and the top plate form an included angle alpha, the metal net is fixed under the top plate through the hanging timbering anchor ropes and the timbering anchor ropes, the steel belt is located under the metal net, multiple timbering anchor ropes are installed on the top plate located on a central line of the abandoned roadway, a hydraulic chock is located in the abandoned roadway, a top beam of the hydraulic chock abuts against the top plate, and the protective net is installed on the roadway side of the abandoned roadway through the anchor rods. The invention further discloses a construction method of a fully mechanized coal mining face passed through the abandoned roadway.

Description

technical field [0001] The invention relates to the technical field of gob support in the coal mining process, in particular to a gob support device and a construction method for a fully mechanized mining face passing through a gob. Background technique [0002] The empty roadway is the roadway left in the mining area due to disorderly mining of small coal kilns or due to the change of the design scheme of the fully mechanized mining face. During the recovery process of the fully mechanized mining face, due to the influence of mining and advanced pressure, the roof in the gob is easy to sink. When the fully mechanized mining face is connected with the gob, large-scale roof fall is prone to occur, and the support will be crushed and affect the safety of production. . If the coal seam in the gob area is not exploited, it will cause waste of resources. The traditional methods of crossing the gob in the fully mechanized mining face at home and abroad include: jump mining to by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00E21D19/00E21D15/46E21C41/16
Inventor 周海丰田臣刘英杰
Owner CHINA SHENHUA ENERGY CO LTD
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