202401

浅埋藏大采高自燃煤层堵漏风防灭火技术实践
发布人:网站管理员 发布时间:2024/2/7 点击次数:6次
  

浅埋藏大采高自燃煤层堵漏风防灭火技术实践
李瑞森
(山西煤炭运销集团阳泉有限公司,山西 阳泉 045000)
摘要:以A 矿1205 综采工作面火灾防治需求为背景,在对工作面自然发火危险性进行深入分析的基础上,阐
述了工作面火灾防治的重点是抑制采空区漏风,提出了进回风巷端头封堵和联络巷密闭封堵相结合的堵漏风措
施,并以后者为重点。结合数值模拟,详细论述了密闭位置、密闭墙体结构、充填材料和墙体厚度。应用结果表
明:堵漏风防灭火技术实施后,采空区遗煤自燃得到有效抑制,工作面未发生火灾事故,保障了生产安全。
关键词:采空区遗煤;堵漏风;密闭;数值模拟;自燃
中图分类号:TD725     文献标志码:A     文章编号:2095-0802-(2024)01-0094-04
Practice of Fire Prevention Technology of Plugging Air Leakage in Shallowburied
Spontaneous Combustion Coal Seam with Large Mining Height
LI Ruisen
(Yangquan Co., Ltd., Shanxi Coal Transportation and Sales Group, Yangquan 045000, Shanxi, China)
Abstract: Based on the fire prevention requirements of 1205 fully-mechanized mining face in A Mine, it was expounded
that the key point of fire prevention was to control air leakage in goaf on the basis of in-depth analysis of the risk of
spontaneous combustion in the working face, and the air leakage prevention measures that combine the end sealing of
inlet and return air lane and the airtight sealing of connecting roadway were put forward, in which the latter was the focus.
Combined with numerical simulation, the closed location, closed wall structure, filling material and wall thickness were
discussed in detail. The application results show that the spontaneous combustion of coal left in goaf was effectively
suppressed and no fire accident occurred in the working face, which can ensure the safety of production.
Key words: coal left in goaf; plugging air leakage; airtight; numerical simulation; spontaneous combustion