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延安市车村二号煤矿于2010年6月6日发生煤炭自燃火灾。在62 d的紧张灭火抢险工作中,首先尝试了注水、注氮、注三相泡沫等各种方法均未取得明显效果,之后采用矿用固化泡沫灭火技术。该技术可以在井下安全地带向火区巷道打钻充填矿用固化泡沫材料形成密闭墙,从而使火源点被封闭在较小区域逐渐窒息,同时又使火区与在采工作面隔离,正式恢复采煤生产,灭火工作取得圆满成功。
Coal Mine No. 2 Yan’an Coal spontaneous combustion fire occurred on June 6, 2010. In the 62 days of intense fire fighting and rescue work, the first attempt to water, nitrogen injection, injection of three-phase foam and other methods did not achieve significant results, followed by mining solidified foam fire-fighting technology. The technology can be safely underground to the fire zone roadway drilling filling mineral solidified foam material to form a closed wall, so that the fire source was closed in a smaller area gradually suffocated, while leaving the fire area and the mining face in the formal mining Resumption of coal production, fire extinguishing work a complete success.