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以小煤矿严重破坏区复采综放工作面3起火灾事故为案例,分析火灾原因,提出了复采工作面穿越小煤矿破坏区特殊支护、消火道防灭火等防治小煤矿自然发火技术,结合工作面破坏区灌浆超前防治、局部均压、注氮等防灭火措施,有效地消除了火灾事故,确保工作面顺利回采。
Taking the case of 3 fire accidents in the fully mechanized top coal caving mining face in the serious destruction area of small coal mine as a case, the paper analyzes the reason of the fire, puts forward the technical measures to prevent and control the spontaneous combustion of the small coal mine through the special support of the mining face through the destruction area of the small coal mine, Combining with the advanced grouting prevention and control, partial pressure equalization and nitrogen injection and other fire prevention measures in the damaged area of the working face, the fire accident is effectively eliminated to ensure the smooth mining face.