瓦斯抽采下采空区自然发火监测分析  

Monitoring and Analysis for Goaf Spontaneous Combustion During Gas Extraction

作　　者：宋志刚 张永明 

机构地区：[1]神华宁夏煤业集团公司白芨沟煤矿,宁夏石嘴山753000 [2]煤科集团沈阳研究院有限公司,辽宁沈阳110016

出　　处：《煤矿安全》2016年第11期190-192,共3页Safety in Coal Mines

摘　　要：为防止高瓦斯矿井自燃煤层在瓦斯抽采过程中发生煤层自然发火,需对瓦斯抽放钻孔内的气体定期检测,对钻孔内CO变化规律进行分析。结合高浓度CO钻孔位置及其与周边采空区、火区分布关系,利用示踪气体测漏风和施工钻孔监测相邻采空区CO气体变化等措施,验证CO来源,判断采空区自然发火状态。In order to prevent coal spontaneous combustion in high gas mine and spontaneous combustion seam during gas drainage process, by regularly checking the gas of drainage drill, we find the laws of CO. Based on the distribution of high concentration CO drillings and near gob fire zone position, we use measures of measuring air leakage by tracer gas and monitoring CO gas change in adja- cent goaf by construction drillings to verify CO source and judge goal spontaneous combustion state. We use SF6 to find the air - leakage passage, and construct drill hole to detect CO concentration of near gob to judge the state of spontaneous combustion in Goaf.

关 键 词：高瓦斯矿井 瓦斯抽采 采空区 自然发火 火区 

分 类 号：TD752.2[矿业工程—矿井通风与安全]