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A method for recovering coal side bolts in fully mechanized mining face

A fully-mechanized mining face and recovery method technology, applied in the field of coal side bolt recovery in fully-mechanized mining face, can solve the problems of high roof pressure, affecting production time, mine loss, etc., and achieve the effect of simple production and convenient operation

Inactive Publication Date: 2019-02-26
神华神东保德煤矿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in many coal mines, there is a large pressure on the roof and two side drums in the tunnel roadway of the return wind. In order to ensure the safety of personnel, it is necessary to install threaded steel bolts on the two sides to strengthen the quality of support. However, in the process of mining The threaded steel bolts of the gang will fall. This kind of threaded steel bolts is not easy to be crushed by the shearer, and it is easy to enter the system. Once the threaded steel bolts fall into the scraper conveyor, it will cause the chain of the scraper conveyor to break and damage the equipment. , entering the belt conveyor may also cause a tearing accident, which affects the production time and causes huge losses to the mine.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A method for recovering coal side bolts in a fully mechanized mining face: firstly connect the free end of the bolt with a hoisting ring, then connect the hoisting ring with one end of a pull rope, and connect the other end of the pull rope to the telescopic oil cylinder of a shearer First, when the coal shearer cuts the coal next to the bolt, when the bolt is loose, the telescopic oil cylinder drives the pull rope to pull the bolt out to realize the recovery of the bolt.

[0010] Preferably, the stay rope is connected by a horseshoe ring and a steel wire rope; the anchor rod is one meter away from the coal wall.

Embodiment 2

[0012] A method for recovering coal side bolts in a fully mechanized mining face: firstly connect the free end of the bolt with a hoisting ring, then connect the hoisting ring with one end of a pull rope, and connect the other end of the pull rope to the telescopic oil cylinder of a shearer First, when the coal shearer cuts the coal next to the bolt, when the bolt is loose, the telescopic oil cylinder drives the pull rope to pull the bolt out to realize the recovery of the bolt.

[0013] Preferably, the stay rope is connected by a horseshoe ring and a steel wire rope; the anchor rod is 0.5 meters away from the coal wall.

Embodiment 3

[0015] A method for recovering coal side bolts in a fully mechanized mining face: firstly connect the free end of the bolt with a hoisting ring, then connect the hoisting ring with one end of a pull rope, and connect the other end of the pull rope to the telescopic oil cylinder of a shearer First, when the coal shearer cuts the coal next to the bolt, when the bolt is loose, the telescopic oil cylinder drives the pull rope to pull the bolt out to realize the recovery of the bolt.

[0016] Preferably, the stay rope is composed of a horseshoe ring and a steel wire rope; the anchor rod is 0.1 meters away from the coal wall.

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PUM

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Abstract

The invention discloses a fully mechanized coal mining face coalside anchor rod recovery method. Firstly, an anchor rod and a lifting ring are connected together; then, the lifting ring is connected with one end of a stay rope, and the other end of the stay rope is connected to a telescopic oil cylinder of a coal mining machine; and after coal beside the anchor rod is mined by the coal mining machine, the anchor rod is released, and the telescopic oil cylinder drives the stay rope to pull out the anchor rod so as to realize the recovery of the anchor rod. The fully mechanized coal mining face coalside anchor rod recovery method has the advantages of simple material taking and production and convenience for control, effectively recovers the fully mechanized coal mining face coalside anchor rod, and solves the problems of chain break and belt tearing caused by the anchor rod entering the system.

Description

technical field [0001] The invention relates to a recovery method, in particular to a method for recovery of coal side bolts in a fully mechanized mining face. Background technique [0002] At present, in many coal mines, there is a large pressure on the roof and two side drums in the tunnel roadway of the return wind. In order to ensure the safety of personnel, it is necessary to install threaded steel bolts on the two sides to strengthen the quality of support. However, in the process of mining The threaded steel bolts of the gang will fall. This kind of threaded steel bolts is not easy to be crushed by the shearer, and it is easy to enter the system. Once the threaded steel bolts fall into the scraper conveyor, it will cause the chain of the scraper conveyor to break and damage the equipment. , Entering the belt conveyor may also cause a tearing accident, which affects the production time and causes huge losses to the mine. Contents of the invention [0003] The invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D20/00
CPCE21D20/00
Inventor 王鹏王晓峰邱会强王志宏
Owner 神华神东保德煤矿