Design of permanent refuge chamber in Tuncheng Coal Mine underground
The permanent refuge chamber should have multi-level functions such as explosion-proof sealing,power and oxygen supply,monitoring,communication and personnel positioning,toxic and harmful gas treatment,cavern temperature control,food and drinking wa-ter supply,etc.In order to achieve these functions,the chamber should be equipped with various equipments and facilities.Taking the design of the permanent refuge chamber in the 7th mining area of Tuncheng Coal Mine as an example,the system capacity was reasona-bly configured and facilities and equipment were optimized according to the rated capacity of 80 people.The refuge chamber was built,and all functions achieved the expected goals,improving the level of mine safety protection and ensured the safety of mine personnel.