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Liquid injection system capable of automatically sealing coal body around extraction drill hole and method of application

A technology for automatic sealing and drainage of boreholes, applied in sealing/seal, mining equipment, mining equipment, etc., can solve the problem of gas leakage in boreholes, affect the efficiency of gas drainage, and cannot effectively improve the efficiency of gas drainage in boreholes and other problems to achieve the effect of improving extraction efficiency and saving extraction time

Inactive Publication Date: 2016-01-27
HENAN POLYTECHNIC UNIV
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Problems solved by technology

[0003] At present, in the process of underground gas extraction, due to the continuous development of coal seam fissures, the boreholes leak gas, and the gas concentration often drops below 30% within 2 months of extraction, which affects the efficiency of gas extraction.
At present, the control of gas leakage in gas drainage drilling is mainly to optimize the sealing material and sealing process. These measures are based on one-time sealing, so these measures still cannot effectively improve the gas drainage of drilling holes. efficiency

Method used

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  • Liquid injection system capable of automatically sealing coal body around extraction drill hole and method of application
  • Liquid injection system capable of automatically sealing coal body around extraction drill hole and method of application

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Embodiment Construction

[0019] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings.

[0020] figure 1 It is a structural schematic diagram of a liquid injection system for automatically sealing and extracting coal around the borehole of the present invention. Such as figure 1 As shown, the liquid injection system for automatically sealing the coal body around the gas drainage borehole of the present invention may specifically include: a signal collection module 1 , an analysis and processing module 2 , an execution module 3 and a database 4 .

[0021] Among them, the signal collection module 1 is used to collect gas drainage parameters in the underground gas drainage process, which may include: orifice temperature, gas concentration, gas flow rate and orifice negative pressure parameters; analysis and processing module 2 is used to obtain received signals Collect...

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Abstract

The invention provides a liquid injection system capable of automatically sealing coal body around an extraction drill hole and a method of application. The liquid injection system capable of automatically sealing the coal body at around the extraction drill hole comprises a signal collection module, an analysis and processing module, an execution module, and a database. The signal collection module is used for collecting gas execution parameters during execution. The analysis and processing module is used for mating collected gas density data and a threshold value, and determining whether liquid injection is needed or not. The execution module is used for executing a result of determination of the analysis and processing module. The database is used for storing the gas extraction parameters collected by the signal collection module. By adopting the technical scheme of the invention, gas leakage in a drill hole can be timely found out and treated, disadvantages caused by on-site measurement of gas extraction parameters can be overcome, the extraction of gas in the drill hole can be effectively controlled, and the efficiency of extraction can be raised.

Description

technical field [0001] The invention belongs to the technical field of underground gas control in coal mines, and in particular relates to a liquid injection system for automatically sealing the coal body around a drainage borehole and a use method thereof. Background technique [0002] Gas is an important factor restricting coal mine safety production. At the same time, gas is a valuable non-renewable clean energy. In the process of coal mine gas control, underground gas drainage is an effective outburst prevention measure. In the underground gas drainage process, hole sealing is an extremely important link, and the continuous sealing effect of the borehole directly affects the gas drainage effect. [0003] At present, in the process of underground gas extraction, due to the continuous development of coal seam fissures, the boreholes leak gas, and the gas concentration often drops below 30% within 2 months of extraction, which affects the efficiency of gas extraction. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18E21F7/00E21B33/13
Inventor 魏国营秦宾宾李茹李娇娇
Owner HENAN POLYTECHNIC UNIV
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