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首页> 外文会议>International Symposium on Mine Safety Science and Engineering >Causes of Spontaneous Combustion of Coal and Its Prevention Technology in The Tunnel Fall of Ground of Extra-thick Coal Seam
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Causes of Spontaneous Combustion of Coal and Its Prevention Technology in The Tunnel Fall of Ground of Extra-thick Coal Seam

机译：煤炭自发燃烧的原因及其防厚煤层隧道隧道落地

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摘要

On the basis of the four factors of spontaneous combustion of coal, the causes of such combustion in the tunnel fall of ground were comprehensively analyzed. The causes include the generation of float coal, influence of hot wind pressure on the laneway, and airflow dynamic pressure caused by sloping roadways. According to the characteristics of a fire that occurred in the intake airflow roadway of working face 12190 in the Geng Cun Coal Mine, a three-phase foam composed of mud, nitrogen, and water was used to extinguish the fire. The foam was injected into the fire zone through boreholes on the tunnel roof. Given the precise scheme and reliability of the technology, the fire was successfully extinguished. The specific technological process and parameters of the technology are discussed in detail. It is concluded that the three-phase foam is useful in preventing spontaneous combustion of coal in the tunnel fall of ground. It serves as a new method for preventing such phenomenon in extra-thick coal seam.
机译：在煤炭自发燃烧的四个因素的基础上，全面分析了地面隧道下落中这种燃烧的原因。原因包括浮法煤，热风压力对巷道的影响，以及倾斜道路引起的气流动力压力。根据在Geng CUN煤矿的工作面12190中的进气场12190中发生火灾的特点，使用由泥浆，氮气和水组成的三相泡沫来熄灭火灾。通过隧道屋顶上的钻孔将泡沫注入火区。鉴于该技术的精确方案和可靠性，火已成功熄灭。详细讨论了该技术的具体技术过程和参数。结论是，三相泡沫可用于防止煤在地面隧道中的自燃燃烧。它用作防止超厚煤层中这种现象的新方法。

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