摘要
根据唐口煤矿6305综放面的开采情况,利用采空区自燃危险区域判定理论,分析了引起采空区遗煤自燃的最小浮煤厚度、下限氧浓度和极限漏风强度等参数,制定了采空区煤自燃危险区域的实测方案;分析了采空区氧气浓度和漏风强度的变化规律,确定了工作面的极限推进速度,为工作面防灭火工作提供了技术支撑和科学依据。
According to the situation of Tang Kou coal mine 6305 fully mechanized mining face, and based on the goaf spontaneous combustion dangerous region determining theory, the paper analyzes the cause of the minimum foat coal thickness, and such parameters as the lower limit of oxygen concentration and air leakage intensity limit etc., formulates a measurement scheme for the determination of spontaneous combustion dangerous region. In the paper the variation law of oxygen concentration and air leakage intensity in goaf is analyzed., and he limit advancing speed of working face is determined as well, which provides technical support and scientifc basis for fre prevention and control work in working face.
出处
《山东煤炭科技》
2017年第12期79-81,共3页
Shandong Coal Science and Technology
关键词
自燃危险性
采空区
自燃“三带”
spontaneous combustion hazard goaf spontaneous combustion three-zones
