202107

基于CFD对五盘区煤窑密布煤层群漏风流场研究
发布人:网站管理员 发布时间:2021/7/22 点击次数:99次
  

基于CFD对五盘区煤窑密布煤层群漏风流场研究
李开舜1,闫谈便1,武建国1,杨文忠1,吴占全1,何启林2
(1. 山西汾西矿业(集团)有限责任公司柳湾煤矿,山西 孝义 032303;2. 安徽理工大学安全科学与工程学院,安徽 淮南 232001)
摘要: 鉴于山西汾西矿业(集团) 有限责任公司柳湾煤矿周边小煤窑开采破坏十分严重,火灾频发,对现有煤层群
的开采造成严重干扰的问题,针对五盘区漏风情况,采用理论分析、数学建模、现场实测与计算模拟等方法研究五盘区
漏风量、漏风流场及漏风情况随探火巷压力变化而变化等情况,得出五盘区整体漏风情况与烟气可能溢出的位置,指导
现场准确判定火源位置与发展状况。
关键词: 遗煤自燃;流场模拟;CFD;小煤窑火区;阻力系数
中图分类号: TD722     文献标识码: A     文章编号: 2095-0802-(2021)07-0026-04
Study on Air Leakage Flow Field in Coal Seam Groups with Coal Kilns in Wupan District
Based on CFD
LI Kaishun1, YAN Tanbian1, WU Jianguo1, YANG Wenzhong1, WU Zhanquan1, HE Qilin2
(1. Liuwan Coal Mine, Shanxi Fenxi Mining (Group) Co., Ltd., Xiaoyi 032303, Shanxi, China; 2. School of Safety Science and
Engineering, Anhui University of Technology, Huainan 232001, Anhui, China)
Abstract: Aiming at the problem that small coal kilns around Liuwan Coal Mine of Shanxi Fenxi Mining (Group) Co., Ltd., are
seriously damaged, causing frequent fires and causing serious interference on the mining of existing coal seam groups, this paper
adopted the theory for the air leakage in Wupan District, mathematical modeling, field measurement and calculation simulation
methods to study the air leakage volume, air leakage flow field and changes of air leakage with the pressure change of the fire
detection lane in Wupan District, and drew the overall air leakage and the possible smoke overflow location in Wupan District, so
as to guide the site to accurately determine the fire source location and development status.

Key words: spontaneous combustion of leftover coal; flow field simulation; CFD; small coal kiln fire area; resistance coefficient