Intelligent control method for efficient extraction of coalbed methane in goafs

A technology of intelligent control and goaf, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve problems such as simplification of drainage control parameters, low drainage efficiency, and no safety control guarantee in the drainage process, etc.

Inactive Publication Date: 2012-09-19
CCTEG SHENYANG RES INST
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Problems solved by technology

[0004] In particular, the present invention provides an intelligent control method for high-efficiency coalbed methane drainage in goafs. In practice, this method basically overcomes the existing problems in existing goaf extraction technologies that each goaf acts independently and the extraction control parameters are single. The extraction process has no safety control guarantee, basically solves the problem of low extraction efficiency, achieves the expected goal of the present invention to realize system optimization, and maximizes the utilization rate of the system when the extraction capacity is certain and extraction efficiency

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  • Intelligent control method for efficient extraction of coalbed methane in goafs
  • Intelligent control method for efficient extraction of coalbed methane in goafs
  • Intelligent control method for efficient extraction of coalbed methane in goafs

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[0019] The intelligent control method for the high-efficiency extraction of coalbed methane in the goaf described in this embodiment uses mine mobile pumping stations or constructs underground fixed extraction pipe networks, and determines whether the concentration of CH4 in the goaf, working face, and return airway exceeds the standard. , judging whether to extract the coalbed methane in each goaf, wherein the control method performs real-time monitoring on the ethylene, carbon monoxide, oxygen gas components and gas temperature in the coalbed methane that restrict the extraction.

[0020] The intelligent control method for high-efficiency coalbed methane extraction in the goaf described in this embodiment, wherein, the setting of the safety control index of the intelligent control method for high-efficiency coalbed methane extraction in the goaf: ethylene detection is based on whether the coalbed methane contains ethylene The gas composition is a reliable indicator for judgin...

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Abstract

An intelligent control method for efficient extraction of coalbed methane in goafs includes judging whether extracting the coalbed methane in each goaf or not by utilizing a mobile mining pump station or constructing a fixed downhole extraction pipe network and according to whether concentration of CH4 in the goafs, a working face and a return gasway exceeds the standard or not. In addition, the control method includes real-time monitoring of other gas compositions and gas temperature restricting extraction of the coalbed methane, and the gas compositions include ethylene, carbon monoxide and oxygen. The invention particularly provides the intelligent control method for efficient extraction of the coalbed methane in the goafs. During application and practice, the method basically solves the problems of independent operation and single extraction control parameter in each goaf, no safety control guarantee during extraction process and low extraction efficiency. Prospective objective of system optimization is achieved, and utilization rate and extraction efficiency can be brought into full play under the condition that the extraction capacity is consistent.

Description

technical field [0001] The invention relates to coal bed gas extraction technology in goaf areas of coal mines, and in particular provides an intelligent control method for efficient extraction of coal bed gas in goaf areas. Background technique [0002] In China's coal mine industry, the extraction of coalbed methane in the goaf is already an indispensable process link in coal mine safety production, energy saving and emission reduction, and gas utilization. The quality of coalbed methane extraction directly affects the safety and stability of coal mines production, improve energy saving and emission reduction level, and efficiently utilize gas; at present, the coalbed methane extraction methods in gobs of coal mines in China are traditional and backward, and they are multi-variety, and the technical means are uneven. The drainage control process of most mines is simple, During the formation of the goaf, the drainage pipeline with the suction port is pre-buried, and when th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418E21F7/00
CPCY02P90/02
Inventor 李铁良祝釗孙凡赵克涛陈骋
Owner CCTEG SHENYANG RES INST
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