沿空掘巷综采工作面下行通风防灭火预防

On Fire Precaution Called Downwards Ventilation Used in the Combined Coal Face

〗沿空掘巷综采工作面回采期间因受上阶段已采工作面采动影响,工作面轨道顺槽压力集中,巷道变形严重,给生产及安全带来极大威胁,同时,因沿空掘巷巷道与临近采空区中间隔离煤柱宽度很窄,随着工作面的回采工作面上隅角隔离煤柱完全被压酥,工作面上隅角及老塘漏风量增大,给工作面上隅角及老塘防火带来极大难题;针对该工作面的特殊性,采取下行通风方法,解决了该工作面原先钻孔无法施工这一难题和工作面上隅角瓦斯积聚的问题,进一步加快了工作面的推进进度,遏止了工作面回采期间的发火隐患。

With an example of 1542(3) combined working face of Panji No.3 coal mine, this paper introduces the way of downwards ventilation to prevent fire occurring. Because of particularity of the working face in the course of mining, downwards ventilation not only can overcome the original difficulties with drill, but also solve the question of gas gathering in the corner. Thus, efficiency can be highly improved, and hidden danger also be effectively removed in the working face during the mining.