摘要
生辉煤业20106工作面采煤方法为低位放顶煤机械化开采,而放顶煤工作面遗煤过多易发生自燃,造成拆架前出现温度异常区域及CO异常涌出。同时,顶板压力大、支架老化等问题使拆架进程缓慢,难以在规程要求的时限内完成封闭。为保证拆架期间的人机安全,生辉煤业调整了通风系统,两巷同时拆架,并采取注氮、注浆等防灭火措施,确保了在封闭时限内安全完成拆架工作。
Lower position top-coal mechanized mining is used on 20106 working face in Shenghui Coal Industry.However,excessive residual coal in the caving face is prone to spontaneous combustion,causing abnormal temperature and CO emission before dismantling.Meanwhile,problems such as high pressure on roof and aging supports slow down the dismantling process and make it difficult to complete the sealing within the required time limit.In order to guarantee human and machine safety during the demolition,Shenghui Coal Industry adjusted the ventilation system.The two roadways were dismantled at the same time and fire control measures,such as nitrogen injection and grouting,were taken to ensure the completion of the dismantling work within the time limit.
作者
王瑞
WANG Rui(Fenxi Energy Co.,Ltd.,Linfen 041099,China)
出处
《山西煤炭》
2021年第2期79-83,共5页
Shanxi Coal
基金
国家自然科学基金资助项目(52074188)。
关键词
自燃
拆架
人机安全
防灭火
封闭
spontaneous combustion
dismantling
human and machine safety
fire prevention
sealing
