基于CFD-DEM耦合的梯级溜槽的设计与分析  

Design and analysis of transfer chute based on CFD-DEM coupling

作　　者：孙晓霞[1] 胡枫 孟文俊[1] SUN Xiaoxia;HU Feng;MENG Wenjun(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,Shanxi,China)

机构地区：[1]太原科技大学机械工程学院,山西太原030024

出　　处：《中国工程机械学报》2024年第5期652-656,661,共6页Chinese Journal of Construction Machinery

基　　金：国家自然科学基金资助项目(52075356);山西省技术创新中心资助项目(202104010911023)。

摘　　要：针对传统物料转运过程中溜槽和输送带磨损严重、出口处粉尘浓度过高的问题,建立含臂架的梯级溜槽几何模型,采用基于计算流体力学与离散单元法(CFD-DEM)耦合的数值模拟方法,分析了臂架对转运溜槽的磨损以及对其出口处粉尘排放浓度的影响。仿真结果表明:含臂架的梯级溜槽可以有效控制物料流的速度和方向,降低对溜槽内表面的冲击磨损,降低出口处的粉尘量。Aiming at the problems of serious wear of chute and conveyor belt and high dust concentration at the outlet in the process of traditional material transfer,a geometric model of cascade chute with boom was established.The numerical simulation method based on computational fluid dynamics and discrete element method(CFD-DEM)coupling was used to analyze the influence of boom on the wear of transfer chute and conveyor belt and the dust emission concentration at its outlet.The simulation results show that the cascade chute with boom can effectively control the speed and direction of the material flow,reduce the wear on the inner surface of the chute and the conveyor belt,and reduce the amount of dust at the exit.

关 键 词：转运溜槽 计算流体力学与离散单元法(CFD-DEM)耦合 粉尘 

分 类 号：TD714.4[矿业工程—矿井通风与安全]