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Method of preventing producing firing resource in coal mine tunnel and apparatus of realizing said method thereof

A technology for coal mine tunnels and fire sources, which is applied in mining devices, fire prevention, safety devices, etc., can solve problems such as poor effect and improper power recovery conditions.

Inactive Publication Date: 2006-11-15
TIANJIN FIRE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The recent research of the applicant for the patent of the present invention has found that the effect of this method and device for preventing ignition sources in the coal mine roadway is not good, and the specific problem lies in the improper power recovery conditions specified

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  • Method of preventing producing firing resource in coal mine tunnel and apparatus of realizing said method thereof
  • Method of preventing producing firing resource in coal mine tunnel and apparatus of realizing said method thereof
  • Method of preventing producing firing resource in coal mine tunnel and apparatus of realizing said method thereof

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Embodiment Construction

[0032] As pointed out in the previous part of the background technology, the method for preventing ignition sources in the coal mine roadway and the device for realizing the method in the prior art did not consider the explosive gas mixture section formed by the gas outburst in the coal mine roadway at a certain speed when determining the power restoration conditions. The time required for the movement to flow out of the coal mine roadway, so that the power recovery before the explosive gas mixture section flows out of the coal mine roadway may cause the explosive gas mixture section in the coal mine roadway to explosion. The applicant for the patent of the present invention has proved this by the simulated test carried out in the test roadway.

[0033] In a test roadway with a length of 20m, a width of 3.1m, and a height of 2.5m, with one end closed and one end open to the atmosphere, an air duct is installed on the top left side 7m away from the closed end face to supply air...

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Abstract

The present invention relates to a method for preventing production of ignition source in coal mine tunnel and equipment for implementing said method. Said method includes the following steps: setting first sensor for monitoring alarm methane concentration and second sensor for monitoring power cut-off methane concentration nearby gas source point, setting third sensor for monitoring methane concentration in process end point and setting fourth sensor for defining continuous power cut-off time nearby gas source point. Said invention also provides the concrete working principle and concrete operation steps of said method.

Description

technical field [0001] The invention relates to a method for preventing an ignition source from being generated in a coal mine roadway, which is used for a gas-air mixture section (including a gas-air mixture section that may be formed by gas gushing, ejection or protrusion in the coal mine production driving process and / or mining process). Explosive mixed gas section) did not flow out of the end of the process to prevent ignition sources. [0002] The present invention also relates to a method for realizing that the gas-air mixture section (including the explosive gas mixture section) formed by gas gushing, ejection or protrusion in the coal mine production excavation workflow and / or recovery workflow does not flow out of the end of the process Means for preventing the generation of ignition sources during the process. Background technique [0003] At present, coal mines have installed methane sensors and methane power-off devices in coal mines for safe production, and spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18E21F5/00
Inventor 王保兴经建生
Owner TIANJIN FIRE RES INST