摘要
通过对小窑破坏区下东一203复采工作面自然发火情况进行分析,采用钻探技术进行验证,提出了灌浆、注氮防灭火、开区均匀技术、采空区有害气体引排泄压、加强预测预报工作及现场监督管理等防灭火技术.该综合防灭火技术应用于东一203采煤工作面,实现了工作面的安全顺利回采、回撤.
Abstract
Based on the analysis of the spontaneous ignition of the secondary mining face of Dong-203 in the damaged area of small kiln,and the verification by drilling technology,this paper puts forward some anti-fire technologies,such as grouting,nitrogen injection anti-fire,uniform opening area technology,harmful gas drainage pressure in goaf,strengthening prediction and prediction work,and on-site supervision and management,etc.The comprehensive anti-fire technology is applied to the mining face of Dong-203.The safe and smooth mining and withdrawal of the working face are realized.
NETL
NSTL
万方数据