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Roof reinforcing protection method for equipment withdrawing channel of fully mechanized coal mining face

A technology of fully mechanized mining face and retraction channel is applied in the field of roof reinforcement protection of the retraction channel of fully mechanized mining face equipment, which can solve problems such as low efficiency, improve retraction efficiency, increase stability and save retraction cost. Effect

Pending Publication Date: 2022-07-26
SHANXI FENXI MINING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the low-efficiency problem of the method of strengthening and supporting the roof of the working face in the prior art, the present invention proposes a method for strengthening and protecting the roof of the equipment retraction channel of the fully mechanized mining face

Method used

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  • Roof reinforcing protection method for equipment withdrawing channel of fully mechanized coal mining face
  • Roof reinforcing protection method for equipment withdrawing channel of fully mechanized coal mining face

Examples

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Embodiment

[0016] Example: as Figure 1 to Figure 2 The shown method for strengthening the protection of the roof of the retraction channel of the fully mechanized mining face equipment includes: fixing a few steel wire ropes at the bottom of a whole fiber net 1 along its long side direction and rolling it up and pulling it to the working face. One end of 1 is fixed at the front beam of the roof of the retraction roadway through the anchor rod, and the steel wire rope is fixed at both ends of the working face through the anchor cable, and the rest is located on the hydraulic support 2; For the rope reel 4, the top of the front end is fixed with the corresponding pulley, the steel strand 5 of each rope reel 4 is fixed on the top plate through the corresponding pulley, and a plurality of steel strands form an accommodation cavity 6 at the pulley and the top plate. , the unrolled fiber mesh and wire rope are located in the receiving cavity through the top of the hydraulic support; the fiber...

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Abstract

The invention provides a top plate reinforced protection method for a fully mechanized coal mining face equipment withdrawing channel, which comprises the following steps: fixing a plurality of steel wire ropes at the bottom of a whole fiber net along the long edge direction, rolling up and dragging to a working face, fixing the end parts of the fiber net and the steel wire ropes on a top plate, and positioning the rest parts on a hydraulic support; a rope coiling device and a pulley are fixed on the hydraulic support, a steel strand passes through the pulley, and a containing cavity is formed at the pulley and the top plate and used for containing a fiber net and a steel wire rope which are not spread; the fiber net and the steel wire ropes are laid along with pushing of the hydraulic support, all the rope coiling devices are tightened at intervals, and the steel wire ropes on the two sides of the laid fiber net are tensioned and fixed to a top plate through anchor cables; and the hydraulic support is pushed to be close to a mining stopping line of the retracement roadway, the front end of the hydraulic support extends the remaining fiber net and the steel wire rope to the top plate and the side of the retracement channel, and the fiber net and the steel wire rope in the channel area are fixed. The labor intensity of workers is reduced, and the supporting efficiency is improved.

Description

technical field [0001] The invention relates to the field of roof protection of coal mine roadways, in particular to a roof reinforcement protection method for a retraction channel of fully mechanized mining face equipment. Background technique [0002] Coal mine roadway roof support has always been an important safety protection in coal mines. The supporting equipment of the fully mechanized mining face needs to strengthen the support for the roof of the working face in the early stage of retraction to form a retraction channel to ensure the normal retraction of the hydraulic support and the scraper conveyor. At present, the way to strengthen the support of the roof of the working face in the coal mine is the joint support of metal mesh, wire rope and I-beam. Each metal mesh needs to be laid with a steel wire rope. The meshes of the small pieces of metal mesh are fixed by wire binding, and the head end of the metal mesh is fixed by the steel pipe. After that, the hydraulic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D17/04E21D17/10E21D23/04E21D20/00
CPCE21D17/04E21D17/10E21D23/0427E21D20/00
Inventor 成轶斌刘永成张路王兵兵李小军翟莉莉兰吉奎
Owner SHANXI FENXI MINING GRP
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