Technologies of emergency refuge and rescue used in underground coal mine

The paper analyzed special pipeline technology for emergency refuge, and pointed out that “six systems” with the special pipeline for underground safe refuge can improve anti-disaster ability of pipeline, but the underground safe refuge system derived from the special pipeline cannot replace coal mine communication system, monitoring and control system and personnel positioning system, and it cannot perceive disasters. It compared and analyzed technical characteristics of life-saving shelter and refuge chamber, pointed out that the life-saving shelter has shortcomings of being susceptible by disaster, needs cooling and high cost. It put forward that coal mine should be equipped with high-power submersible pump, and should be careful to use rescue equipments of flood drilling. It proposed area captain and group leaders should be part-time draegerman. It also proposed that hand-over works should try to be completed on the ground, so as to reduce underground personnel.