潘三矿1652(3)工作面采空区自燃危险区域判定研究  

Study on Determination of Spontaneous Combustion DangerArea in 1652(3) Working Face of Pansan Mine

作　　者：叶春辉 陈勇[2] YE Chunhui;CHEN Yong(Pingan Coal Mining Engineering Technology Research Institute Co.,LTD.,Huainan 232000,China;Huainan Mining(Group)Co.,LTD.,Huainan 232000,China)

机构地区：[1]平安煤炭开采工程技术研究院有限责任公司,安徽淮南232000 [2]淮南矿业(集团)有限责任公司,安徽淮南232000

出　　处：《煤》2023年第10期14-17,25,共5页Coal

基　　金：2022年安徽省重点研究与开发计划项目(2022l07020020)。

摘　　要：为确定潘三矿1652(3)工作面采空区自燃危险区域范围,通过实验测试、数值模拟、现场观测以及理论分析等综合研究方法,分析潘三矿13_(-1)煤层的煤自燃极限参数特征,并确定现场采空区内氧气体积分数、漏风强度、浮煤厚度的分布规律。最终确定了1652(3)工作面采空区的煤自燃危险区域为采空区内进、回风两侧氧化带的范围,并且工作面的安全推进速度不应小于1.76 m/d,否则可能引起采空区煤层自燃。In order to determine the scope of spontaneous combustion danger area in the goaf of 1652(3)working face of Pansan Mine,comprehensive research methods such as experimental test,numerical simulation,field observation and theoretical analysis were adopted to analyze the characteristics of coal spontaneous combustion limit parameters in 13_(-1) coal seam of Pansan Mine,and to determine the distribution law of oxygen concentration,air leakage intensity and floating coal thickness in the goaf.Finally,it is determined that the coal spontaneous combustion danger area in the goaf of 1652(3)working face is the oxidation zone on both sides of the inlet and return air in the goaf,and the safe advancing speed of the working face should not be less than 1.76 m/d,otherwise it may cause spontaneous combustion of the coal seam in the goaf.

关 键 词：自燃危险区域 极限参数特征 数值模拟 煤自燃 

分 类 号：TD752.2[矿业工程—矿井通风与安全]