Research of the air leakage law and control techniques of the spontaneous combustion dangerous zone of re-mining coal body
The float coal in the gob of re-mining face spontaneous combustion mechanisms was studied and the physical model was built. With the boundary condition determined by analyzing the on-the-spot data, the distribution of oxygen concentration and the velocity of air flow in the gob were calculated by numerically simulating the flow field. Based on the results, a type of composite gel was chosen to control the development of the spontaneous combustion dangerous zone, at the same time, the characteristics and form of the gel was introduced, the equipments and systems of injectting gel was shown in the paper. The spontaneous combustion zone was controlled after injecting the composite gel with fly ash, while the temperature and CO gas reducing.
Coal re-mining coal spontaneous combustion Numerical simulation, Prediction Gel fire extinguishing technology
Zhai Xiao-wei Deng Jun Wen Hu Ma Wei
School of Energy, Xi an University of Sciences and Technology, Xi an 710054, China Key Laboratory Chongqing Institute of Coal Science Research Institute, Chongqing, 400037, 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
101-108
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）