粒子行为和孔径优化可变振动幅度选基于离散元件方法模拟的可变振动幅度
Jinpeng Qiao1, Jinshuo Yang1, Junyu Lu1,2
1Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China.
ACS omega
|September 4, 2023
概括
通过调整光圈大小来实现新型变量振幅等厚振动屏幕 (VAETVS) 的优化. 离散元件方法模拟显示了最佳设置,以提高选效率.
科学领域:
- 机械工程 机械工程
- 颗粒技术 颗粒技术
- 分离科学 分离科学
背景情况:
- 新的查技术正在从粒子规模的研究中出现.
- 变幅等厚振动屏幕 (VAETVS) 是这样的创新之一.
- 优化VAETVS性能对于高效的材料分离至关重要.
研究的目的:
- 通过使用各种光圈大小来研究VAETVS的优化.
- 在不同的屏幕配置下分析粒子动态和空间分布.
- 开发一个基于光圈变化的选效率的预测模型.
主要方法:
- 使用离散元件方法 (DEM) 进行模拟.
- 在三个不同的屏幕面板上有不同的光圈大小.
- 分析颗粒物质量分布和选效率.
- 应用Box-Behnken响应表面方法进行建模.
主要成果:
- VAETVS可以通过使用各种振幅和光圈大小进行优化.
- 振幅变化对于硬和障碍粒子特别有效.
- 从料到排放结束时,观察到粗细颗粒质量分布的差异显著增加.
- 增加光圈大小通常会增加这种粒子质量差.
结论:
- 可变光圈大小为VAETVS提供了有效的优化策略.
- 开发了一个数学模型来预测查效率.
- 为了实现最大的选效率 (分别为86.35%和87.82%) 确定了最佳的光圈大小和开口区域.
相关概念视频
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