梁宝寺煤矿孤岛面自燃危险区域划分  

Division of Spontaneous Combustion Danger Zone for Insular Face of Liangbaosi Coal Mine

作　　者：常绪华[1] 王德明[1] 董钦亮 张茂增 时国庆[1] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221116 [2]梁宝寺能源有限责任公司,山东嘉祥272404

出　　处：《煤矿安全》2013年第3期21-24,共4页Safety in Coal Mines

基　　金：国家自然科学基金委员会与神华集团有限公司联合资助项目(51134020);国家自然科学基金资助项目(50927403);国家自然科学基金资助项目(51104154);煤炭资源与安全开采国家重点实验室自主课题资助项目(SKLCRSM08X06);中央高校基本科研业务费专项基金资助项目(2011QNA05)

摘　　要：基于理论分析和现场试验,得出3206和邻近采空区内的O2和CO浓度随距离的变化规律,在分析数据的基础上,提出回风邻近采空区顺槽内存在2个氧化带。对3206和邻近采空区岩石碎胀系数进行分析,结合通风系统压力分析漏风范围。最后,叠加漏风范围、浮煤分布和气体变化,把3206孤岛面自燃危险区域划分为动态危险区域和静态危险区域,结果显示,回风邻近采空区内的动态危险区域是该工作面的防灭火重点。Based on theory analysis and field test, change laws of 02 and CO concentrations with the distance are obtained in 3206 and adjacent goals. On the basis of analyzing datum, two oxidation zones which are located in the erossheading of return air adjacent goals are presented. Rock bulking coefficient of 3206 and adjacent goals is analyzed and air leakage boundary is obtained by combining venti- lation system pressure. Finally, using the superposition of air leakage boundary, residual coal distribution and gas change, spontaneous combustion danger zone of 3206 insular face is divided into dynamic and static danger zones. The results show that dynamic danger zone of return air adjacent goals is the emphasis of fire prevention and extinguishment in 3206 face.

关 键 词：孤岛面 自燃危险区域 氧化带 采空区 

分 类 号：TD752.2[矿业工程—矿井通风与安全]