在向下通风条件下,CFD模拟研究注射以抑制Goaf的煤炭自发燃烧
Jianwei Wang1,2, Xianfeng Liu3
1Mining Disaster Prevention and Control-Ministry of State Key Laboratory Breeding Base, College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
ACS omega
|July 7, 2025
概括
将注入煤矿的中,有效地抑制了自发燃烧. 优化400m3/h的注射,距离面部90米,增强防火能力,降低安全风险.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 化学工程是化学工程的重要组成部分.
- 安全科学安全科学 安全科学
背景情况:
- 煤炭自燃在采矿操作中存在重大风险.
- 将注入木是灭火的一种经济高效的方法.
- 优化气输送是最大化有效性和安全性的关键.
研究的目的:
- 为了调查一个特定的煤矿的自发燃烧风险.
- 分析注入参数对燃烧区的影响.
- 提出一个优化的注入策略,以改善防火.
主要方法:
- 计算流体动力学 (CFD) 数值模拟.
- 氧气和甲度场的分析.
- 模拟U+L和下风通风条件.
主要成果:
- 确定了距离工作面90米的最佳注射端口位置.
- 确定了400m3/h的最佳注射速率.
- 显著降低了自发燃烧风险.
结论:
- 优化的注射策略显著提高了防火和灭火效率.
- 拟议的战略减少了与煤炭自燃相关的安全风险.
- 具有成本效益的注射对于矿山安全至关重要.
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