在"110方法"中,气体-温度合场的时空进化定律和防止自燃的方法
Song Wei1, Zhenqing Fang1, Zongxiang Li2,3
1Liaoning University of Technology, Liaoning, China.
PloS one
|November 20, 2023
概括
这项研究揭示了"110"矿山洞中的空气泄漏如何造成自燃灾难 (SCD) 区域. 消除公路附近的这些区域有效地减少了煤炭自燃风险,并提高了采矿安全.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 地质技术工程 地质技术工程
- 煤炭燃烧科学 煤炭燃烧科学
背景情况:
- 自发燃烧灾害 (SCD) 在地下煤矿中构成重大风险.
- 这是一个很棒的节目,这是一个很棒的节目.
- 110 110 一百一十 一个
- 采用U + L通风的采矿方法在防火方面提出了独特的挑战.
研究的目的:
- 为了调查SCD区域的空间分布在goaf的美国.
- 110 110 一百一十 一个
- 采矿方法.采矿方法.
- 分析通风和空气泄漏对煤炭氧化的影响.
- 提出有效的消防预防策略.
主要方法:
- 封闭式煤炭氧化实验是在东龙煤矿的煤上进行的.
- 建立了一个结合的三维特异元素代码 (3DEC) 和计算流体动力学 (CFD) 模型.
- 在U + L通风下分析了SCD区域的3D短暂分布特征.
主要成果:
- 空气泄漏显著改变了氧气和温度的分布.
- 一个持久的氧化区域 (与保留的道路平行20-60米) 被确定为自燃高风险区域.
- 在SCD区域的区域,随着工作面的前进,出现了"双拐点"模式.
结论:
- "保留的道路氧化区"是导致自燃风险的关键因素.
- 在尾门内注射是一种用于防止煤炭自燃的方法.
- 在"保留道路氧化区"中减轻风险对于确保采矿安全和防止SCD至关重要.
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