赤城煤矿特厚下分层1502-2工作面采空区煤自燃“三带”研究  

Research on the"Three Zones"of Coal Spontaneous Combustion in the Goaf Area of the 1502-2 Working Face in the Extra Thick Lower Layer of Chicheng Coal Mine

作　　者：孔德玺 李永元 赵龙祥 安明胜 郭建龙 Dexi Kong;Yongyuan Li;Longxiang Zhao;Mingsheng An;Jianlong Guo(Huating Coal Group Chicheng Coal Mine Limited Liability Company,Pingliang,Gansu 744000;Huaneng Coal Technology Research Co.,Ltd.,Beijing 100070)

机构地区：[1]华亭煤业集团赤城煤矿有限责任公司,甘肃平凉744000 [2]华能煤炭技术研究有限公司,北京100070

出　　处：《新疆钢铁》2025年第1期168-170,共3页Xinjiang Iron and Steel

基　　金：华能集团总部科技项目HNKJ23-H11资助。

摘　　要：为了更好地指导赤城煤矿5-2煤层自燃防治工作,根据赤城煤矿5-2特厚煤层1502-2工作面开采后采空区遗煤特点,并通过在1502-2工作面倾向方向和采空区两巷铺设束管,采集气体进行分析,在现场测定氧气浓度等相关参数的基础上,同时结合数值模拟,得到了工作面自然发火“三带”分布规律,明确了氧化带最大距离并计算出了工作面安全推进速度,这为赤城煤矿5-2煤层制定科学的自燃火灾防治策略提供了坚实的数据支撑与理论依据。In order to better guide the prevention and control of spontaneous combustion in the 5-2 coal seam of Chicheng Coal Mine,based on the characteristics of residual coal in the goaf after mining in the 1502-2 thick coal seam of Chicheng Coal Mine,and by laying bundle pipes in the direction of the 1502-2 working face and the two lanes of the goaf,gas was collected for analysis.On the basis of on-site measurement of oxygen concentration and other related parameters,combined with numerical simulation,the distribution law of the"three zones"of spontaneous combustion in the working face was obtained,the maximum distance of the oxidation zone was clarified,and the safe driving speed of the working face was calculated.This provides solid data support and theoretical basis for the scientific prevention and control strategy of spontaneous combustion fires in the 5-2 coal seam of Chicheng Coal Mine.

关 键 词：采空区 遗煤自燃 “三带” 数值模拟 

分 类 号：TD752[矿业工程—矿井通风与安全]