基于COMSOL仿真模拟采空区自燃“三带”研究  

Simulation of spontaneous combustion“three zones”of goaf based on COMSOL

作　　者：李权 LI Quan(Shanxi Changzhi Jingfang Zhuangzihe Coal Industry Co.,Ltd.,Datong 073000,China)

机构地区：[1]山西长治经坊庄子河煤业有限公司,山西大同073000

出　　处：《陕西煤炭》2024年第12期26-30,共5页Shaanxi Coal

摘　　要：为了精准划分山西铺龙湾煤矿5110综放工作面采空区自燃“三带”分布范围。通过COMSOL Multiphysics数值模拟软件有针对性地建立5110综放工作面采空区数学模型,并根据现场实际工程条件设置相关参数和边界条件,通过模拟得出采空区的流场分布和氧浓度场分布,以此作为依据精准划分出铺龙湾煤矿5110综放工作面采空区自燃“三带”分布范围。结果表明,5110综放工作面采空区散热带为0~34 m;自燃带为34~128 m;窒息带为采空区128 m以里,采空区氧化带宽度为94 m。In order to accurately divide the distribution range of spontaneous combustion“three zones”in the goaf of the 5110 fully mechanized working face of Shanxi Pulongwan Coal Mine,the COMSOL Multiphysics numerical simulation software is used to establish a mathematical model of the goaf of the 5110 fully mechanized face,and the relevant parameters and boundary conditions are set according to the actual on-site engineering conditions,and the flow field distribution and oxygen concentration field distribution of the goaf are obtained through simulation,which is used as the basis to accurately divide the distribution range of spontaneous combustion“three zones”in the goaf of the 5110 fully mechanized face of the mine.The results show that the heat dissipation zone in the goaf of the working face is 0~34 m,the spontaneous combustion zone is 34~128 m,the suffocation zone is within 128 m of the goaf,and the width of the goaf oxide zone is 94 m.

关 键 词：采空区 自燃“三带” 流场 氧浓度场 数值模拟 

分 类 号：TD752[矿业工程—矿井通风与安全]