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Water infusion hole sealing method and device of coal face coal

A coal mining face, water injection sealing hole technology, applied in safety devices, mining equipment, earthwork drilling and mining, etc., can solve problems such as unsatisfactory effect, poor effect, water leakage, etc., achieve good promotion and use value, and reduce dust production The effect of quantity and saving money

Inactive Publication Date: 2010-03-10
枣庄矿业(集团)付村煤业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using a hole sealer to seal the hole is easy to leak water from the anchor hole, and the effect is not good; there is also a hole that uses quick cement to seal the hole, the sealing depth is greater than 6 meters, but the effect is still not ideal

Method used

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  • Water infusion hole sealing method and device of coal face coal
  • Water infusion hole sealing method and device of coal face coal

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0018] After repeated tests, the present invention finally adopts the principle of using kelp to expand when it encounters water, that is, selects high-quality dry kelp, wraps the water injection pipe with kelp for 3 meters, and seals it with 5 meters of rapid cement, which prevents the water injection pressure from rising with the water injection hole. High, the water in the injection hole is easy to overflow around the hole and the bolt eye.

[0019] A kind of coal body water injection sealing hole method of coal mining face of the present invention is as follows: figure 1 As shown, it includes: water injection hose 6, the rear end of water injection hose 6 is connected with flow gauge pressure gauge 7, the other end of flow gauge pressure gauge 7 is connected with water inlet hose 9, and valve 8 is housed on water inlet hose 9. The coal body wat...

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Abstract

The invention relates to water infusion hole sealing method and device of coal face coal. The water infusion hole sealing device of the coal face coal comprises a water infusion rubber pipe, and the rear end of the water infusion rubber pipe is connected with a pressure gage of a flow gauge. The water infusion hole sealing method of the coal face coal comprises the following steps: firstly prewetting dry kelp so that the dry kelp is flexible; then winding the front section of the water infusion rubber pipe with the dry kelp so that the diameter of the water infusion rubber pipe corresponds tothe diameter of a water infusion hole; then stretching the water infusion rubber pipe wound with the dry kelp into the water infusion hole; and then plugging a gap between the rear section of the water infusion rubber pipe and the inner wall of the water infusion hole by fast cement. Through trial and error, the invention finally adopts a principle that the kelp is swelled when contact water, i.e.the high-quality dry kelp is used for winding 3 meters of the front end of the water infusion rubber pipe and externally sealing 5 meters of the fast cement at the rear section of the water infusionrubber pipe, thereby prevents water in the water infusion hole from easily overflowing outwards from the periphery of a hole opening and an anchor rod hole along with the increases of water infusionpressure in the water infusion hole. The invention adopts a dry kelp and fast cement duplexing hole sealing technique and has good hole sealing quality and low hole sealing cost.

Description

technical field [0001] The invention relates to a coal body water injection sealing hole method and a water injection hole sealing device in a coal mining face. Background technique [0002] Water injection into the coal body of the coal mining face is one of the most important dust-proof measures in the mining face. Before mining, a number of drill holes are drilled in the coal seam, and pressure water is injected through the drill holes to make it penetrate into the coal body and increase the moisture content of the coal. , so as to reduce the amount of dust produced in the coal seam mining process and eradicate coal dust from the source. [0003] Effective implementation of coal water injection is one of the main measures to prevent and control coal dust in coal mining face. Coal water injection is to eradicate coal dust from the source. The long-arm coal water injection of the previous working face failed to achieve the design effect due to the limitation of the drillin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/02
Inventor 殷少举陈克生徐继宽张培勤王美光李强付玉法侯修勇
Owner 枣庄矿业(集团)付村煤业有限公司
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