Coal mine gas extraction effect evaluation system

Abstract

The invention relates to a coal mine gas extraction effect evaluation system. The coal mine gas extraction effect evaluation system can effectively solve the problem of actual drainage conditions of areas in an existing gas extraction evaluation unit. According to the adopted technical scheme, negative pressure sensors, flow sensors and concentration sensors are arranged for drill holes of a coalmine, drainage negative pressure, flow and concentration of extraction areas of the coal mine are monitored and metered, whether drainage blind areas exist in extraction evaluation areas or not is analyzed, data are uploaded to a wireless communication system, extraction time, extraction pure quantity, extraction negative pressure and extraction difference coefficients are automatically analyzed through the wireless communication system, whether related requirements of evaluation standards are met or not is judged, and actual judgment conclusions are concluded. According to the coal mine gas extraction effect evaluation system, the drainage conditions of all areas in the gas extraction evaluation unit can be known in real time, extraction blind areas can be effectively avoided, and the coal mine gas extraction effect evaluation system is an innovation of the coal mine gas extraction effect evaluation system.

Description

technical field [0001] The invention relates to the field of coal mines, in particular to an evaluation system for coal mine gas drainage effects. Background technique [0002] In the safe production of coal mines, gas drainage compliance is an important part of gas control, and it is determined whether there will be gas overruns, coal and gas outbursts; , each drainage unit is measured and evaluated separately. In the actual gas drainage evaluation process, the entire evaluation unit is independently measured and evaluated. The boreholes with poor drainage effects cannot be effectively measured, and the drainage gas cannot be analyzed. Blind areas cause the distortion of the drainage standard, mislead the authenticity of the drainage standard, and bring great safety hazards to the safety work of coal mine gas control and outburst prevention. [0003] When developing Shihmen with a long distance and unearthing coal at the working face, using the existing metering device has...

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Problems solved by technology

[0004] In view of the above situation, in order to solve the defects of the prior art, the purpose of the present invention is to provide a coal mine gas drainage effect evaluation system, which can effectively solve the problem of the actual situation of each area in the existing gas drainage evaluation unit