Then a new technique was taken to extinguish the fire by making use of the existing slurry injecting system to inject composite fly ash gel into the fire zone.

• 接着启开火区下部的运输上山,从运输上山向火区打钻,由钻孔直接向火区注复合胶体,彻底扑灭了火灾,保障了矿井安全生产。