Application of Three-phase Foam Technology for Spontaneous Combustion Prevention in Longdong Coal Mine
According to the status of 7312-2 light-face in Longdong Coal Mine, the technology of three-phase foam and its application were studied. The threephase foam and its extinction theory are particularly introduced in this paper. The primary form of coal ash and yellow mud samples were received by analysis with instrument Laser Partical Sizer, and the coal ash was determined as the experimental material. With experiments of the proportion of ash and water and performance of foaming agent, the optimum proportion is 1:4, and the performance of foaming agent is best when the critical micelle concentration is 0.7％. Continuously, through matching experiments with foaming agents, No.3 and No.6 foaming agents were selected finally, and matching proportion was 1:1. Based on the practice of 7312-2 light-face, the process flow of three-phase foam and its primary technical parameters were designed. The monitoring results of the concentration of CO and temperature show that the effect of the three-phase foam for extinction is outstanding.
Longdong Coal Mine Three Phase Foam Technology of Spontaneous Combustion Prevention Gob Area
Xie Zhenhua Li Xiaochao Liu Mingming
Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
1251-1257
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）