Experimental Study on Oxidation and Heat Emission Law of Lost Coal in Goaf
Under the condition ofeontinuing air leakage, the lost coal in goaf will be able to have the retarded oxidation and to cause temperature increment, which subsequently possibly will initiate the spontaneous combustion. Therefore the research on oxidation and heat emission law of lost coal in goal has the vital practical significance to prevent and control the residual coals spontaneous combustion. In this paper, a self designed test installation of oxidation with elevating temperature was used to carry out experiments on the different coal samples. The result of experiments are used to calculate the coals speed rate of consuming oxygen (SRCO) and the heat-release rate (HRR) of different coal samples at different temperatures. The critical temperature (CT) of residual coals oxidation exothermic was obtained through the relations of SRCO, HRR and temperature. On this basis, it is concluded that the residual coals oxidation exothermic is relatively slowly with temperature below the CT and the residual coals oxidation exothermic is sharply increased with temperature above CT.
goal lost coal hcating-up and oxidation experiment
QIN Yueping SONG Yimeng ZHU Jianfang ZHAHG Tian GE Ji
School of Resource & Safety Engineering.China University of Mining and Technology (Beijing),Beijing School of Safety Engineering,North China Institute of Science and Technology,Beijing 101601,China
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
1409-1414
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）