优化双管道强制辅助通风系统以减轻聚金属地下矿环境中的颗粒物排放:混合式方法
Abdullah Rasheed Qureshi1, Sergei Sabanov1, Emil Bayramov1
1School of Mining and Geosciences, Nazarbayev University, Astana, Kazakhstan.
PloS one
|May 2, 2025
概括
优化双通道强制 (DDF) 辅助通风系统 (AVS) 对于减少矿山中的颗粒物 (PM) 是至关重要的. 设计AVS 2和AVS 3显著改善了柴油设备操作期间的PM分散,提高了矿工的安全性.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 环境科学 环境科学
- 计算流体动力学的流体动力学.
背景情况:
- 辅助通风系统 (AVS) 在地下矿山中对空气流和颗粒物 (PM) 的管理至关重要.
- 现有的研究不足以解决柴油驱动设备 (DPE) 操作的最佳双管道强制 (DDF) AVS设计.
- 暴露于颗粒物对地下矿工的健康构成重大风险.
研究的目的:
- 评估四个DDF-AVS设计在DPE装载和卸载期间改善空气流和PM管理方面的有效性.
- 确定最佳的DDF-AVS配置,以最大限度地减少在地下采矿环境中的PM暴露.
- 解决在特定DPE操作场景中DDF-AVS性能方面的研究缺口.
主要方法:
- 一种混合方法,结合使用Ansys-Fluent的数值模拟.
- 评估了四个DDF-AVS设计 (AVS1-4).
- 模拟两个不同的DPE操作场景:装载 (S1) 和卸载 (S2).
主要成果:
- 矿井漂移中的复杂空气流模式显著影响PM运输.
- 场景S2 (在垃圾填埋场卸载) 构成PM暴露风险最高,其次是S1 (在工作面上加载).
- AVS 2和AVS 3在空气流量不那么复杂和有效的PM转移方面表现出卓越的性能.
结论:
- AVS 2 和 AVS 3 是更高效的 DDF-AVS 设计,用于地下矿山的 PM 管理.
- 与AVS 1. 1相比,S1的颗粒分散率提高了15.66% (AVS 2) 和7.83% (AVS 3) 在S1中.
- 与AVS 1相比,S2的颗粒分散率提高了27% (AVS 2) 和46% (AVS 3),突出了它们对更清洁生产的潜力.
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