基于离散元模型的石灰石曲线挡板实验研究
Experimental Study of Limestone Curved Baffles Based on Discrete Element Modeling
张文超 1匡枝俏1
作者信息
- 1. 湖南机电职业技术学院,湖南 长沙 410100
- 折叠
摘要
采用离散元单元法对石灰石转运过程中的颗粒运动及破碎率进行了研究.通过建立石灰石颗粒的物理模型,分析不同转运方式对破碎的影响,并设计了曲线挡板与传统直线挡板的比较实验.结果表明,曲线挡板通过优化切入角和减小冲击速度,有效减少了石灰石的破碎率,相较于直线挡板,其破碎率降低约1.8～2.0个百分点.此次研究为石灰石转运设备的曲线优化设计提供了计算依据.
Abstract
The particle motion and crushing rate during the limestone transshipment process were investigated using the discrete element cell method.The physical model of limestone particles was established to analyze the effect of different transfer methods on crushing,and a comparative experiment between curved baffle and traditional linear baffle was designed.The results show that the curve baffle effectively reduces the crushing rate of limestone by optimizing the angle of incision and reducing the impact velocity,and the crushing rate is reduced by about 1.8～2.0 percentage points compared with that of the straight line baffle,with a view that this study provides a computational basis for the curve-optimized design of the limestone transfer equipment.
关键词
石灰石/离散元/直线挡板/曲线挡板/破碎率Key words
limestone/discrete element/linear baffle/curved baffle/crushing rate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据