工作面采空区自燃发火防治技术

Prevention and Extinguishing Technology of Spontaneous Combustion in Goaf

通过对神华金烽煤炭公司唐公沟煤矿5#煤层自燃倾向性的测定,及对采空区遗煤量、遗煤位置和采空区漏风状况的实测研究,分析了5206工作面采空区自燃发火的原因,从而提出了自燃发火预测预报、堵漏、压注MEA防灭火剂、注氮、均压及填堵地表裂隙等综合防灭火技术。这些技术措施已在实践中取得了一定的效果。

The spontaneous combustion tendentiousness of 5 ^# coal seam is measured, the emission and location of float coal and condition of air leakage in goaf are measured and analyzed. This thesis sum up the reasons for spontaneous combustion in goal and put forward comprehensive measures to expounds the application about preventing and extinguishing mire fire. The comprehensive measures include prediction of spontaneous combustion, plugging up the leakage flow, pressing MEA, injecting nitrogen, balanced- pressure, logical mining speed at working face, stuffing the crack on the earth＇s surface. The effects of these technical measures have been achieved certain effects in practice.