摘要
通过分析采空区原有气体的运移特征,得出影响采空区注氮效果的主要影响因素;再通过建立采空区注氮防灭火惰化数学模型,利用FLUENT软件对数学模型进行解析模拟,同时结合煤矿现场实际情况进行验证,研究了注氮口位置及注氮量对于采空区"三带"变化的影响过程。
Through analyzing the moving characteristic of the original gas in goaf, it obtained the major influence factors affecting the nitrogen injection effect in goaf. Then according to the foundation of the inerting mathematical model about nitrogen injection for fire prevention and extinguishing, it used the FLUENT software to make analytical simulation for the mathematical model, and it verified the results combined with the actual situation of the coal mine site. It studied the influence of the position of nitrogen injection port and the nitrogen injection capacity on the three zones change of goaf.
出处
《煤矿安全》
CAS
北大核心
2013年第5期22-25,共4页
Safety in Coal Mines
基金
河南省科技厅基础与前沿研究项目(122300413210)
河南省教育厅科学技术研究重点资助项目(12B440004)
关键词
采空区注氮
松散煤体
防灭火
惰化过程
nitrogen injection in the goaf
loose coal
fire prevention and extinguishing
inerting process
