宝鼎矿区花山煤矿多诱因大范围火区治理关键技术
Multi-inducement large-scale fire control key technology in Baoding Huashan Mine
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摘要: 为治理花山矿4238工作面极复杂+1 030 m水平四采大范围蔓延隐蔽阴燃状态火区,以主动灭火与分区隔离治火相结合为基本思路,先后采取远距离封闭后缩封、无机材料充填、液态二氧化碳降温冷却、注氮惰化、施工措施巷灌注粉煤灰浆、阴燃火区外围巷道充填等综合灭火技术进行治理。结果表明:4238工作面火区火已熄灭;外围阴燃火区经高强度、长时间治理,火已逐渐熄灭,CO气体体积分数控制在1×10-5以下,目前,火区治理处于收尾阶段。Abstract: In order to control the extremely complex +1 030 m horizontal fourth mining fire area with a wide spread concealed smoldering state at 4238 working face of Huashan Mine, combine active fire-fighting with partition isolation and fire control as the basic idea, comprehensive fire-fighting techniques, such as remote sealing after shrinkage, inorganic material filling, liquid carbon dioxide cooling, nitrogen injection inerting, flyash slurry filling in the roadway and filling in the surrounding roadway in smoldering fire areas, have been successively adopted for treatment. The results show that the fire in 4238 working face has been extinguished, after a long time of high intensity treatment, the fire has been gradually extinguished, the concentration of carbon monoxide gas is controlled below 1×10-5, at present, the management of the fire area is at the end stage.
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Keywords:
- Huashan Mine /
- multi-inducement /
- large fire area /
- smoldering /
- fire area governance
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