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煤层火灾是矿井主要灾害之一,发生火灾轻则影响生产,重则可能烧毁煤炭资源和矿井设备,甚至会酿成人员伤亡的重大恶性事故。注氮防灭火技术是煤炭开采中,较为常用的、经济有效的技术手段之一。因此,对综放开采工作面,采取注氮防灭火技术等有效的防灭火措施,防止采煤工作面火灾发生,是矿井安全生产工作的重中之重。
Coal seam fire is one of the major disasters in coal mines. In the event of a fire, it affects production by a small amount, while coal resources and mine equipment may be burned in the worst cases. It may even lead to a serious malignant accident involving casualties. Nitrogen injection fire prevention and control technology is one of the more commonly used and cost-effective techniques in coal mining. Therefore, it is a top priority of coal mine safety work to take effective fire prevention and extinguishing measures such as nitrogen injection fire prevention technology to prevent working face fire in fully mechanized coal caving mining face.