8203面采空区“三带”分布及防灭火技术应用

doi:10.19286/j.cnki.cci.2022.08.029

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Abstract In order to prevent spontaneous combustion of coal in goaf, the distribution law of ' three zones ' of scattered tropical zone, heating zone and suffocation zone in goaf of No.8203 Face was simulated with Comsol. The temperature of ' three zones ' was ladder-type distribution. According to the simulation results, the grouting scheme was adopted in the heating zone, and the CO gas content and temperature in this region were measured and analyzed after grouting. The results showed that after the grouting scheme was adopted, the CO concentration decreased to 2.4 ppm, and the ground drilling temperature was stable at about 16 °C, with good control effect.

Key words： goaf heating zone grouting prevention and extinguishing technology CO gas content

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	Tian Ye

Cite this article:

Tian Ye. Distribution of ' three zones ' and application of fire prevention and extinguishing technology in goaf of No.8203 Face[J]. CCI, 2022, 45(8): 105-107.

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http://www.mtyhg.com.cn/EN/10.19286/j.cnki.cci.2022.08.029 OR http://www.mtyhg.com.cn/EN/Y2022/V45/I8/105