The Comprehensive Technology of Fire Prevention and Extinguishing at the First Mining Face in Beixinyao Coal Mine

The first mining face of Beixinyao Coal Mine facing the the problems of unknown location of fire zone in the upper goafs, the lack of a comprehensive fire prevention systems that can fast and efficiently govern the fire, as well as the possible gas-inrush from the goafs during the mining. Combined with the actual conditions of the first mining face, the paper developed the measures of using drilling temperature and gas measuring method to detect the fire zone; establishing a comprehensive fire prevention systems of perfusing three-phase retarding foam; taking measures such as uniform pressure ventilation technology to prevent the inrush of harmful gases to the face during mining. The above measures effectively prevent hazards from the fire zone in the upper goafs, and ensure the safe recovery of the first mining face of Beixinyao Coal Mine.