相关实验视频
Updated: Jan 20, 2026
01:22
Bioavailability: Influencing Factors
Published on: October 3, 2025
348
影响因素和优化煤矿煤的可搬运性 钻孔屏幕管道
Xuebo Zhang1,2,3,4, Kaige Tian1, Jianliang Gao1,2,3,4
1School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan Province 454003, China.
ACS omega
|January 19, 2026
概括
这项研究模拟了在屏幕管道中运输煤炭细的模型,发现更高的限制压力会增加吞吐量,直到发生堵塞. 较强的颗粒键可以改善抗堵塞性,而圆孔和较低密度可以提高煤炭细颗粒的可运输性.
科学领域:
- 地质技术工程 地质技术工程
- 粒子力学 粒子力学
- 材料科学 是一种材料科学.
背景情况:
- 煤炭罚金运输对于采矿业务至关重要.
- 屏幕管的性能受到各种物理参数的影响.
- 了解煤炭罚金的行为是优化运输效率的关键.
研究的目的:
- 用粒子流模型和离散元素方法模拟和分析通过屏幕管道运输的细煤.
- 调查封闭压力,结合强度和排水负压对可运输性的影响.
- 为了确定最佳的屏幕管道参数,以高效地运输煤炭细金.
主要方法:
- 开发了一种基于离散元素方法的粒子流模型.
- 结合数值模拟与实验研究.
- 分析了封闭压力,结合强度,光圈形状,面积比和光圈密度的影响.
主要成果:
- 限制压力非线性地增加吞吐量到关键值,导致6MPa的堵塞.
- 增加的粒子键强度增强了抗堵塞能力,但降低了可运输性.
- 圆形孔径显示,随着尺寸比的增加,吞吐量下降;在中间颗粒大小时,可传输性达到顶峰.
- 较高的光圈密度降低了整体的可运输性,尽管较大的颗粒从低密度中受益.
- 与单独的限制压力相比,结合的限制压力和负排水压力将吞吐量增加约1.3倍.
结论:
- 优化的参数包括圆形光圈,主要轴垂直,面积比为4,光圈密度为35/m.
- 限制压力和排水对煤炭罚金运输产生重大影响,需要谨慎管理以防止堵塞.
- 离散元素方法为了解和优化屏幕管道中的颗粒物材料流提供了宝贵的工具.
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