采动卸压区地面钻井抽采诱导煤自燃研究现状与分析  

Research Status and Analysis of Coal Spontaneous Combustion Induced by Surface Drilling in Mining-induced Pressure Relief Area

作　　者：成玮 王浩 CHENG Wei;WANG Hao(School of Safety Engineering,North China Institute of Science and Technology,Langfang 065201,Hebei,China)

机构地区：[1]华北科技学院安全工程学院,河北廊坊065201

出　　处：《能源与节能》2023年第4期45-47,66,共4页Energy and Energy Conservation

摘　　要：分析了地面钻井抽采瓦斯过程对采动区“三带”分布影响的研究现状,从瓦斯对煤自燃的影响、地面钻井分布位置以及地面钻井抽采负压三个方面阐述了地面钻井对采动区煤自燃的影响,表明了一定浓度的瓦斯对煤自燃可以产生抑制作用,煤在低浓度瓦斯环境下放热量和放热速度降低,瓦斯会对煤中与煤自燃有关的官能团的产生起到抑制作用。地面钻井是通过增大采空区一定区域的漏风量来影响采空区“三带”的分布。地面钻井的分布位置对于采空区“三带”分布的影响大于抽采负压对“三带”分布的影响。总结研究成果,分析研究中存在的不足和需改进之处,提出之后研究的大致方向,以期为相关工作提供参考。This paper analyzed the research status of the influence of surface drilling on the distribution of"three zones"in the mining area in the process of gas extraction,expounded the influence of surface drilling on coal spontaneous combustion in the mining area from three aspects:the influence of gas on coal spontaneous combustion,the distribution position of surface drilling and the negative pressure of surface drilling extraction,and showed that a certain concentration of gas can inhibit coal spontaneous combustion.In the low concentration gas environment,the heat release and heat release rate of coal decrease,and gas will inhibit the generation of functional groups related to spontaneous combustion of coal.Surface drilling affects the distribution of"three zones"in goaf by increasing the air leakage in a certain area of goaf.The influence of surface drilling location on the"three zones"distribution of goaf is greater than that of pumping negative pressure.Summarize the research results,analyze the shortcomings and possible improvements in the research,and put forward the general direction of future research to provide reference for related work.Summarize the research results,analyze the shortcomings and possible improvements in the research,and propose the general direction of the future research to provide reference for related work.

关 键 词：地面钻井 瓦斯抽采 煤自燃 三带 

分 类 号：TD712[矿业工程—矿井通风与安全]