综放工作面停采撤架期间煤自燃防治技术研究  

Study on Prevention and Control Technology of Coal Spontaneous Combustion in Fully Mechanized Top Coal Caving Face During Stopping and Withdrawing Supports

作　　者：邢立杰 刘华 刘芬 王帆 权岩萍 Xing Lijie;Liu Hua;Liu Fen;Wang Fan;Quan Yanping(Shanxi guojiahe Coal Industry Co.,Ltd.,Shanxi Baoji 721500 China;School of safety science and engineering,Xi'an University of science and technology,Shanxi Xi'an 710054 China;Safety production command center,Shanxi Shangan Branch of Jiangsu energy Co.,Ltd.,Shaanxi Baoji 720000 China;Honghui No.1 coal mine of Jingyuan Coal Power Co.,Ltd.,Gansu Baiyin 730614 China)

机构地区：[1]陕西郭家河煤业有限责任公司通风部,陕西宝鸡721500 [2]西安科技大学安全科学与工程学院,陕西西安710054 [3]江苏能源股份有限公司陕甘分公司安全生产指挥中心,陕西宝鸡720000 [4]靖远煤电股份有限公司红会一矿,甘肃白银730614

出　　处：《同煤科技》2021年第5期6-9,共4页Datong Coal Science & Technology

摘　　要：针对郭家河煤矿1308综放工作面在停采期间采空区域内遗煤发生自燃、架间及回风流的CO浓度超出安全范围等问题,采取了局部正压通风、封堵减漏、架间插管注凝胶、高位钻孔灌注高分子材料等综合性预防灭火技术和措施,解决了采空区域内的遗煤自燃难题,使工作面架间CO浓度下降至合理、安全的区间,确保综放工作面支架的安全回撤。In view of the problems of spontaneous combustion of residual coal in goaf,the CO concentration exceeding the safe range between the support and the return air during the period of stopping mining in the 1308 fully mechanized top coal caving face of Guo Jiahe Coal Mine,the comprehensive fire prevention techniques and measures such as local positive pressure ventilation,plugging and leakage reduction,gel grouting between supports,high level drilling and pouring polymer materials are adopted.The problem of spontaneous combustion of residual coal in goaf area is solved,the CO concentration between working faces is reduced to a reasonable and safe range,and the safe withdrawal of supports in fully mechanized top coal caving face is ensured.

关 键 词：综放工作面 煤自燃 撤架 防灭火 高位钻孔注浆 

分 类 号：TD752.2[矿业工程—矿井通风与安全]