采空区遗煤高温氧化区域辨识与综合治理

Identification and Comprehensive Management of High Temperature Oxidation Area of the Residual Coal in Goaf

通过对杨柳煤矿10414工作面推进受阻期间大范围采空区内部及周围受压破碎煤柱处遗煤、漏风供氧、环境蓄热和时间4个因素辩证分析,判断采空区及围岩处的煤炭疑似高温氧化区域的空间位置,辨识遗煤氧化蓄热的发展程度,从而针对性地实施防灭火钻孔,灌注液态CO2,三相泡沫以及高分子胶体等防灭火介质,最终使高温氧化区域得以快速治理。

During the period of the propulsion hindering of 10414 working face in Yangliu Coal Mine,it made dialectical analysis of four factors-residual coal,air leakage and oxygen supply,environment heat storage and time in the large area of goaf and the surrounding compression crushing pillar.Then it estimated the spatial position of suspected high temperature oxidation area of coal in the goaf and surrounding rocks,and identified the development degree of oxidation heat storage of the residual coal.Thus,it could specifically carry out the fire prevention and extinguishing drilling,infusing some fire-fighting medium such as the liquid carbon dioxide,three-phase foam and polymer colloid.Finally,the high temperature oxidation area could be governed rapidly.