Experimental Study on Gas Desorption Rules of Residual Coal in Coal Mine Goaf
A large number of coal mining goaf produced by long-time mining in China is rich in coalbed methane resources.If the coal CBM is not used properly,it not only causes the waste of resources,but also affects the safe production of the coal mine,and will pollute the environment at will.However,at present,there are few studies on the gas desorption law of abandoned coal in goaf,which is an important part of gas source in goaf.Therefore,in this paper,a new experimental device is developed for the desorption of large size primary lump coal in the goaf,and a new empirical formula is derived for the desorption test of different particle sizes of raw coal at different temperatures.
Coal mine Goaf Residual coal Gas desorption rule
Wang Ran Dai Linchao
Gas Research Branch,China Coal Technology Engineering Group Chongqing Research Institute,Chongqing 400037,China;State Key Laboratory of the Gas Disaster Detecting Preventing and Emergency Controlling,Chongqing 400037,China
国际会议
青岛
英文
53-57
2018-11-03（万方平台首次上网日期，不代表论文的发表时间）