浅析注氮防灭火技术在综放工作面的应用

Brief Analysis about Application of Nitrogen Injection Fire Prevention and Extinguishing Technology in Fully Mechanized Caving Face

公乌素煤矿011601综放工作面由于推进缓慢,极易造成采空区遗煤自燃,针对该工作面情况,结合公乌素煤矿现有设备及注氮防灭火技术的特点,采取向采空区注氮的方法,使采空区内氧气含量降低,并达到不再使采空区浮煤自燃的程度,达到防灭火的目的。

Due to the slow advance of 011601 fully mechanized caving face in Gongwusu Coal Mine,it is easy to cause spontaneous combustion of residual coal in goaf. According to the situation of this working face,combined with the characteristics of existing equipment and nitrogen injection fire prevention and extin. guishing technology in the mine,the method of nitrogen-injection into goaf is adopted. The oxygen content in goaf is thus reduced and the degree of spontaneous combustion of floating coal in goaf is no longer achieved,and the purpose of fire prevention and extinguishing is achieved.