大采高综采工作面撤架期间采空区浮煤自燃防治技术研究  

Research on Prevention and Control Technology for Gob Float Coal Spontaneous Combustion in a Fully-mechanized Face with Large-mining Height during Support Withdrawal

作　　者：邓军[1] 刘文永[1] 王金平 翟小伟[1] 张福勇[1] 

机构地区：[1]西安科技大学西部矿井开采与灾害防治教育部重点实验室,陕西西安710054 [2]神华宁夏煤业集团公司羊场湾煤矿,宁夏银川750001

出　　处：《矿业安全与环保》2011年第3期29-31,35,共4页Mining Safety & Environmental Protection

基　　金：教育部创新团队项目(IRT0856);国家自然科学基金项目(50704025);陕西省自然科学基础研究计划项目(2010JM6016)

摘　　要：随着煤矿高产高效开采技术的发展,采空区浮煤自燃灾害威胁着煤矿工人的生命财产安全。针对羊场湾Y212工作面撤架期间采空区浮煤自燃特点与工作面实际开采条件,通过对工作面气体情况和井下实际生产条件的分析,提出在工作面前方重新施工巷道,采用高位孔灌注胶体材料、封闭注氮相结合的降温、降氧的防灭火方案,有效控制了该工作面在停采撤架期间的CO气体浓度和温度,为成功回撤奠定了基础,也为易自燃厚煤层自然发火机理研究与防治积累了主要的技术数据和实践经验。With the development of high-output and efficient mining technology in coal mines,the float coal spontaneous combustion disaster in the gob seriously threatens the miners＇ life and property safety.To counter the characteristics of float coal combustion in the gob of Y212 working face in Yangchangwan Mine during support withdrawal and the actual mining condition of the face and through the analysis on the gas state in the face and the actual production condition,a new spontaneous combustion prevention and control technology including reconstructing a roadway in front of the face,pouring the colloidal material into the gob,closed nitrogen injection,cooling and oxygen reduction was put foreward,the CO concentration and temperature were effective controlled with this technology during the stop production and support withdrawal in this face.This technology laid a foundation for successful support withdrawal and accumulated the major technical data and pracical experiences for the study of spontaneous combustion mechanism and its prevention and control.

关 键 词：煤自燃 大采高综采工作面 采空区 注胶防灭火 

分 类 号：TD75[矿业工程—矿井通风与安全]