综采面终采撤架期防灭火定量化注胶技术研究  

Quantitative gels injection technology during the final mining and support removal period of fully mechanized mining face

作　　者：谢军[1] 刘润杭 徐书荣 高永文 王怡 XIE Jun;LIU Runhang;XU Shurong;GAO Yongwen;WANG Yi(College of Safety and Environmental Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Guizhou Qianxi Energy Development Co.,Ltd.,Bijie 551700,China)

机构地区：[1]山东科技大学安全与环境工程学院,山东青岛266590 [2]贵州黔西能源开发有限公司,贵州毕节551700

出　　处：《煤炭工程》2025年第2期112-118,共7页Coal Engineering

基　　金：山东省自然科学基金面上项目(ZR2023ME052)。

摘　　要：为降低工作面终采撤架期间的自燃风险,提升防灭火措施中胶体压注过程的可控性,以青龙煤矿21802综采工作面终采期注胶防灭火为工程背景,研发出一种定量精准的自动制胶泵送装置。同时计算并确定了胶体扩散半径、组分配比、压注量等关键注胶参数,继而以所研发的装置为载体,以推导得出的关键注胶参数为依据,开展了架间定量压注与端头压注相结合的现场防灭火注胶应用试验。研究结果表明:运用所研发的注胶装置并结合关键参数进行注胶,有效降低了工作面进回风隅角及支架后采空区的CO浓度,CO浓度从注胶前最高的14×10^(-6)降至1×10^(-6)以下。与大面积粗放型注胶相比,该方法显著降低了成本,保障了工作面终采撤架期间的安全。Mitigating spontaneous combustion during longwall panel retreat remains a critical safety challenge in underground coal mining.Here,we present an automated,precise gel preparation and pimping system developed for the 21802 working face at Qinglong Mine,integrating optimized gel parameters(diffusion radius,composition ratio,and injection volume)with targeted delivery between hydraulic supports and working face end zones.Field trials demonstrate that precision injection reduces CO concentrations in upper corners and goaf areas from 14×10^(-6)(pre-treatment peak)to below 1×10^(-6).The technology eliminates the need for large-scale,high-volume gel applications,and greatly saves the cost while ensuring the safety in retreat mining.

关 键 词：综采工作面 终采撤架期 采空区 防灭火 注胶技术 

分 类 号：TD752[矿业工程—矿井通风与安全]