XU Xuezhan, MENG Xiangrui, ZOU Yunlong. Coal and gas outburst early-warning technology based on change of gas concentratio[J]. Journal of Mine Automation, 2016, 42(9): 17-21. DOI: 10.13272/j.issn.1671-251x.2016.09.005
Citation: XU Xuezhan, MENG Xiangrui, ZOU Yunlong. Coal and gas outburst early-warning technology based on change of gas concentratio[J]. Journal of Mine Automation, 2016, 42(9): 17-21. DOI: 10.13272/j.issn.1671-251x.2016.09.005

Coal and gas outburst early-warning technology based on change of gas concentratio

  • In order to realize real-time, accurate and advanced prediction of coal and gas outburst in heading face, a coal and gas outburst earlywarning method based on change of gas concentration was proposed. Through inversion technique of coal gas pressure in heading face, critical condition of coal and gas outburst was determined, and early-warning model of coal and gas outburst was built. A non-contact early-warning system of coal and gas outburst was developed based on change of gas concentration. The application result shows that the system can monitor change of gas concentration and volume information real-timely, and make non-contact and real-time hazard early-warning in coal and gas outburst regional in advance of a work shift.
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