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Intelligent coal mine underground gas extraction device

A gas extraction and coal mine technology, which is applied in the field of underground gas extraction devices in coal mines, can solve the problems of wasting resources, polluting the environment, leakage, etc., and achieves the effects of avoiding sealing performance, reducing leakage, and improving extraction concentration.

Active Publication Date: 2021-10-26
ANHUI UNIV OF SCI & TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gas explosion is one of the major disasters in coal mines. Draining gas and reducing the gas concentration in the coal mine production process is an important operation process to reduce gas explosions. Leakage between the gas pumps leads to low concentration of gas drainage and cannot be used directly, and the leaked gas is discharged into the atmosphere, which pollutes the environment and wastes its resources. Therefore, there is an urgent need for a gas drainage system with good sealing performance and suitable collection concentration. device

Method used

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  • Intelligent coal mine underground gas extraction device
  • Intelligent coal mine underground gas extraction device
  • Intelligent coal mine underground gas extraction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to Figure 1-6 As shown, this embodiment provides an intelligent underground gas extraction device for coal mines, including a bracket 1, a gas-liquid separator 2 is fixedly connected to the bracket 1, a water tank 3 is connected to the bottom of the gas-liquid separator 2, and the gas-liquid separator 2. The outlet end of the gas pump station 4 is connected to the gas pumping station 4. The outlet end of the gas pumping station 4 is connected to the gas collection box 5. The inlet end of the gas-liquid separator 2 is connected to the first pipeline 8. The first pipeline 8 is equipped with an intelligent valve 6. The first The end of the pipeline 8 away from the gas-liquid separator 2 is connected to the confluence end of the collecting pipe 9, and the diverging ends of the collecting pipe 9 are respectively connected to the extraction pipe 12, and the extraction pipe 12 extends into the borehole, and the outside of the extraction pipe 12 A fifth sealing structure...

Embodiment 2

[0056] refer to Figure 7As shown, the difference between the extraction device of this embodiment and the first embodiment is that a plugging assembly is sleeved on the outside of the extraction pipe 12, and the plugging assembly is located below the fifth sealing structure 18. The air bag 13 on the outside of the extraction pipe 12, the first passage 904 is opened in the side wall of the diversion end of the collecting pipe 9, the second passage 1203 is opened in the side wall of the extraction pipe 12, the first passage 904 communicates with the second passage 1203, The end of the first channel 904 away from the second channel 1203 is connected to the communication tube 15 , the end of the communication tube 15 away from the first channel 904 is connected to the pump body 11 , and the end of the second channel 1203 away from the first channel 904 is connected to the airbag 13 .

[0057] The pump body 11 is electrically connected with the controller, and the operation of the...

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Abstract

The invention relates to the technical field of gas extraction, and particularly relates to an intelligent coal mine underground gas extraction device. The intelligent coal mine underground gas extraction device comprises a support, wherein a gas-liquid separator is fixedly connected to the support; a water tank is communicated with the bottom of the gas-liquid separator; a gas pump station is communicated with the outlet end of the gas-liquid separator; a gas collection tank is communicated with the outlet end of the gas pump station; a first pipeline is communicated with the inlet end of the gas-liquid separator; an intelligent valve is arranged on the first pipeline; a flow converging end of a flow converging pipeline is communicated with one end of the first pipeline; an extraction pipe is communicated with the flow dividing end of the flow converging pipeline and stretches into a drill hole; a fifth sealing structure is arranged on the outer side of the extraction pipe; a second sealing structure is arranged at the joint of the first pipeline and the flow converging pipeline; a third sealing structure is arranged at the joint of the flow converging pipeline and the extraction pipe; and leakage detection sensors are arranged in the second sealing structure, the third sealing structure and the fifth sealing structure and electrically connected with a controller. By means of the intelligent coal mine underground gas extraction device, efficient extraction without leakage of gas extraction can be achieved.

Description

technical field [0001] The invention relates to the technical field of gas drainage, in particular to an intelligent underground gas drainage device for coal mines. Background technique [0002] Gas is formed by the decomposition of cellulose and organic matter by anaerobic bacteria in the initial stage of coal accumulation by ancient plants. In the environment of high temperature and high pressure, while coal is formed, gas continues to be generated due to physical and chemical effects. The permeability of gas is 1.6 times that of air. It is difficult to dissolve in water. It does not support combustion and cannot maintain breathing. When it reaches a certain concentration, it can cause people to suffocate due to lack of oxygen, and can burn or explode. Gas explosion is one of the major disasters in coal mines. Draining gas and reducing the gas concentration in the coal mine production process is an important operation process to reduce gas explosions. Leakage between the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F7/00
CPCE21F7/00
Inventor 李尧斌薛生龚选平郑春山成小雨郑晓亮高涵李寿山江丙友徐伟杰杨超宇罗亚涛岳彩昊江涛
Owner ANHUI UNIV OF SCI & TECH
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