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Device and method for releasing anchoring of mining chemical anchor rope

An anchor cable and chemical technology, applied in mining equipment, earth square drilling, installation of bolts, etc., to achieve the effects of saving the amount of strong acid, reducing labor intensity, and simplifying the construction process of anchor removal

Active Publication Date: 2015-07-22
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem: The purpose of this invention is to address the defects of existing mechanical anchor removal methods, and propose a mining chemical anchor cable anchor removal device and method, using chemical anchor cables to artificially control the failure time of the anchor body, so as to achieve safe anchor removal Effect

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  • Device and method for releasing anchoring of mining chemical anchor rope
  • Device and method for releasing anchoring of mining chemical anchor rope

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Embodiment Construction

[0027] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0028] The anchor withdrawal device for chemical anchor cables for mines of the present invention is mainly composed of a drug bag 2, a diversion tube 3, a flow valve 4, a lock 6, a special anchor ring 7 and a joint tray 8. The lock 6 and the tray 8 are worn on the exposed section of the anchor cable 1, and the special anchor ring 7 is arranged between the lock 6 and the tray 8, and the radial direction of the special anchor ring 7 is provided with two asymmetric guides up and down. Orifice 5, a diversion hole 5 on the upper part is provided with a diversion tube 3, and the diversion tube 3 is connected with the medicine pack 2 arranged on the top plate 9, and the medicine pack 2 is filled with a mixture with a concentration of 5-12mol / L Acid liquid; the said guide pipe 3 is provided with a throttling valve 4 .

[0029] The method for withdrawing the ancho...

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Abstract

The invention discloses a device and method for releasing anchoring of a mining chemical anchor rope. The device and method are suitable for roadway anchoring releasing operation. The device mainly comprises four parts including a chemical bag, a flow guide pipe, a specially-made anchor ring and a throttle valve. Acid liquor in the chemical bag is led into a gap between the specially-made anchor ring and the anchor rope through the flow guide pipe, the anchor rope is corroded and weakened through the acid liquor, and waste liquor generated after a reaction flows out through a flow guide hole in the lower side of the specially-made anchor ring. Then, the anchoring releasing effect is achieved through the hysteresis mining pressure. The corrosion speed can be set by controlling the flowing speed of the throttle valve or adjusting the concentration of the acid liquor of the chemical bag to adjust the anchor rope failure time. By means of the device, the anchoring releasing construction technology is simplified, and the labor intensity of workers is reduced; in addition, the anchoring failure time can be artificially controlled, the safety of the anchoring releasing procedure is improved, and the device is simple in structure and easy to popularize.

Description

technical field [0001] The invention relates to a mine-used chemical anchor cable anchor withdrawal device and method, and is especially suitable for the anchor withdrawal operation of roadways. Background technique [0002] Coal roadway bolt and cable support is a support method commonly used in my country. It has the advantages of simple operation and good support effect, but it will also cause a large area of ​​​​the end of the working face to hang from the roof, resulting in the accumulation of gas at the end. Roof and gas management bring great hidden dangers. Therefore, how to ensure that the roof does not collapse before the working face is pushed over, and how to collapse in time after the working face is pushed over is an urgent problem to be solved for the coal roadway support. For this reason, often carry out the operation of moving back anchor in the coal mining operation process. [0003] At present, mechanical anchor withdrawal is widely used, and there are ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D20/00
CPCE21D20/00
Inventor 张农张天池徐骁勇潘东江
Owner CHINA UNIV OF MINING & TECH
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