This paper discusses the application about the fire preventing and extinguishing technique of gelatin inhibitor in Xiaonan Mine of Tiefa Coal Mining Group to check the air leak passage for the working face and to reasonably arrange the fire preventing drill for air leak zone. The gelatin is flowed in the fire preventing drill. Simultaneously, the inhibiting fire preventing of boiloff is put in practice for the goaf and the easy roof fall zone. The coal layer is blocked up to leak air, isolated to supply... This paper discusses the application about the fire preventing and extinguishing technique of gelatin inhibitor in Xiaonan Mine of Tiefa Coal Mining Group to check the air leak passage for the working face and to reasonably arrange the fire preventing drill for air leak zone. The gelatin is flowed in the fire preventing drill. Simultaneously, the inhibiting fire preventing of boiloff is put in practice for the goaf and the easy roof fall zone. The coal layer is blocked up to leak air, isolated to supply the oxygen and inhibited to decrease the temperature. Consequently, the safety production of flammability and layered working face is realized. |