论文部分内容阅读
鹤壁中泰矿业有限公司位于鹤壁矿区北中部,开采煤层为石炭二迭系山西组二_1煤,煤层平均厚度为8 m,自燃发火期为6～2个月,工作面自1992年采用综采放顶煤开采工艺以来,基本上达到了高产、高效的目的。但由于放顶煤回采工艺的特殊性,导致一系列防灭火问题,使工作面采空区自燃发火问题日益严重。特别是工作面相邻采空区回采期间,由于隔离煤柱较薄,工作面采空区推过后,隔离煤柱被压碎,导致后部采空区连成一片,形成漏风通道,导致采空区一氧化碳时有超限。考虑到全层放顶
Hebi Zhongtai Mining Co., Ltd. is located in the north of Hebi Mining Area. The coal seam is composed of Permafrost Shanxi Formation II-1 coal, the average thickness of coal seam is 8m, spontaneous combustion period is 6 ~ 2 months, Since the top coal mining and mining process has basically reached the goal of high yield and high efficiency. However, due to the particularity of caving coal mining process, a series of fire prevention and extinguishing problems have caused the problem of spontaneous combustion in the gob of the working face becoming more and more serious. In particular, during the mining of the adjacent goaf in the working face, the isolated coal pillar is crushed due to the thinly-isolated coal pillar and the gob of the working face. As a result, the gob of the rear part is connected together to form a leakage air passage, Empty area when there is carbon monoxide limit. Considering full-height roofing