研究尘埃迁移和尘埃沉积规则的呼吸区在完全机械化采矿面孔的研究
Tianxuan Hao1,2, Lei Wang1, Zehua Wang1
1College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China.
ACS omega
|October 30, 2023
概括
矿山灰尘对健康构成风险. 这项研究分析了完全机械化的采矿面的呼吸区中的尘埃分布和沉积,确定了高度区域和颗粒大小模式,以告知尘埃控制策略.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 职业健康和安全问题 职业健康和安全问题
- 环境科学 环境科学
背景情况:
- 采矿操作的呼吸区中的尘埃对工人健康和安全构成重大风险.
- 了解尘埃分布和沉积模式对于有效地减轻尘埃和改善矿山环境至关重要.
研究的目的:
- 分析完全机械化采矿面的呼吸区内的尘埃度分布和颗粒大小沉积模式.
- 建立一个减少尘埃度和改善矿工工作环境的基础.
主要方法:
- 利用计算流体动力学 (CFD) 模拟与现场深孔测量相结合.
- 在新疆煤矿开发了一种高度模拟的3D固体模型,2302完全机械化的采矿面.
- 根据颗粒大小分析了尘埃沉积量,并确定了沉积区域 (快速,中等,缓慢).
主要成果:
- 在人行道呼吸区高度确定了一个高度的尘埃污染区域,距离煤矿区20-60米以内,起源于先进的支和煤炭切割.
- 呼吸区中的尘埃颗粒主要在1至40微米之间.
- 返回气道中的流有助于增加呼吸区的20-40微米粉尘颗粒.
结论:
- 该研究提供了关于在完全机械化的采矿环境中尘埃行为的关键见解.
- 这些发现为开发矿山呼吸区有针对性的灰尘管理策略提供了理论基础.
- 了解颗粒大小分布和沉积动态是减轻职业健康风险的关键.
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