猫儿沟露天矿立体火区快速治理技术研究应用

Research and Application of Three-dimensional Fire Area Fast Management Technology in Maoergou Open Coal Mine

猫儿沟露天矿920平盘A采区火区火势严重,沿巷道外部着火区域不断向内部蔓延,形成大范围立体火区。基于此,采用三相泡沫技术对立体火区进行快速灭火降温,形成防火隔离带,同时为防止火区复燃,利用粉煤灰改性材料对降温后的采空区进行填充隔离。通过这两种技术的相互配合,分区域完成了猫儿沟露天矿大范围火区的快速治理工作。火区治理结果表明:采用以上两种技术对采空区立体火区进行治理,既可以对高位火源进行灭火降温,又能够对低位火源进行覆盖,并有效防止火区遗煤复燃,火区治理效果显著。

The three-phase foam technology was used to quickly extinguishing and cooling the fire,forming a fire-proof separation zone. Meanwhile,in order to prevent the fire from coming back,the coal ash modified material was used. Two technologies were combined for the quick fire putting out operation.