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东峡煤矿52°急倾斜综放开采是世界性开采技术的突破。通过对52°急倾斜372201工作面停产期间发火经过、发火原因的分析,研究、讨论、制定了大型火灾事故液氮防灭火技术方案和相应对策,取得了较快灭火的效果,保障了东峡煤矿急倾斜综放工作面安全生产,促进了急倾斜综放开采期间防灭火技术的发展。
The 52 ° sharp inclined fully mechanized top coal caving mining in Dongxia Coal Mine is a breakthrough of worldwide mining technology. Through analyzing and researching and discussing the cause of fire during the stoppage of 372201 working face with 52 ° steep working face, the technical scheme of liquid nitrogen fire fighting and extinguishing for large-scale fire accident and its corresponding countermeasure have been developed and the fire extinguishing effect has been achieved. Safe production in steep inclined fully mechanized top coal caving face promotes the development of fire prevention technology during the steep inclined fully mechanized top coal caving mining.