在门关闭过程中,在沟飞灰泥管道中的水动态表征
Yuxin Hao1, Xuepeng Song2, Chengshuai Wang2,3
1School of Energy and Mining Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China. haoyuxin@outlook.com.
Scientific reports
|May 20, 2024
概括
在煤矿泥运输中,门突然关闭会导致危险的水效应. 增加泥度和流速加剧了压力波动,需要仔细设计管道和采取保护措施.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 煤炭填充采矿使用流飞灰泥 (GFS) 运输.
- 在GFS运输过程中门突然关闭可能会导致危险的水事件.
- 管道安全对于GFS运输系统至关重要.
研究的目的:
- 在GFS中调查门突然关闭的压力波动.
- 分析泥风学对水现象的影响.
- 提供用于水保护和管道选择的数据.
主要方法:
- 试验性确定煤灰泥的风湿学参数.
- 使用计算流体动力学 (CFD) 的过渡数值模拟.
- 对各种门关闭时间和泥度的分析.
主要成果:
- 泥产量压力随着度的增加而显著增加,高达38.4%,度>76%.
- 门的关闭会导致泥中的周期性动态压力振荡.
- 水压力随着距离的增长而下降,但随着度和速度的增加而加剧.
结论:
- 污泥度和流速是影响水强度的关键因素.
- 较长的门关闭时间减少了水事件的频率.
- 这些发现为更安全的管道设计和采矿回填泥的水减轻策略提供了信息.
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