瓦斯抽采对采空区浮煤自燃影响及防治措施  

The influence of gas drainage on goaf spontaneous combustion and its prevention measures

作　　者：余明高[1] 赵志军[1] 褚廷湘[1,2] 周世轩[1] 董艳军[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000 [2]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008

出　　处：《河南理工大学学报（自然科学版）》2011年第5期505-509,共5页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(50974055);河南省基础与前沿技术研究计划项目(082300463205);中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(10KF01)

摘　　要：针对立体瓦斯抽采对采空区自燃带分布及浮煤自燃的影响,以采空区风流速度的变化为切入点,以义马集团U+Ⅰ型通风系统为背景,研究在立体瓦斯抽采系统中由于漏风而造成采空区"三带"分布变化及对浮煤自燃的影响.结果表明,瓦斯抽采及采空区浮煤自热产生的"内生火风压"加剧了采空区的漏风,使自燃带的划分范围更复杂,增加了采空区发火的危险性,最后提出了增阻漏风及同步注氮、注水、注浆的综合防灭火措施.Based on the effection of stereo gas drainage to the spontaneous combustion zones distribution and coal spontaneous combustion, inthis paper, it had used the change of the airflow velocity as the entry point, and choosed U ＋ Ⅰ type ventilation system of Yima mine as the background. It had researched the change of ＂three zones＂ distribution and the coal spontaneous combustion in the goaf by the air leakage under the stereo gas drainage system. It is found that the gas drainage and＂ endogenous fire heating air pressure＂ can intensify the wind leakage in the goaf, complicate the differentiate limits of the spontaneous combustion zones range, and increase the risk of spontaneous combustion in the goaf. Finally, it had put forward the comprehensive fire prevention measures such as increasing the resistance to control air leakage, nitrogen injection and water injection, and grouting synchronization.

关 键 词：瓦斯抽采 采空区 漏风 火风压 自燃 

分 类 号：TD75[矿业工程—矿井通风与安全]