Numerical and experimental study on the particle erosion and gas–particle hydrodynamics in an integral multi-jet swirling spout-fluidized bed  

作　　者：Wenbin Li Feng Wu Liuyun Xu Jipeng Sun Xiaoxun Ma 

机构地区：[1]School of Chemical Engineering,Northwest University,Xi’an 710069,China [2]Luoyang Jianguang Special Equipment Co.,Ltd,Luoyang 471003,China

出　　处：《Chinese Journal of Chemical Engineering》2023年第9期90-101,共12页中国化学工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(22178286);Shaanxi Qin Chuangyuan“scientist and engineer”team construction project(2022KXJ-041)。

摘　　要：In this paper,using the computational fluid dynamics based on Euler Lagrange and the commercial software Barracuda VR,the gas-particle hydrodynamics and the erosion of particles on the inner wall and internal components of the spouted bed in the integrated multi-jet swirling spout-fluidized bed(IMSSFB)are studied.Erosion experiments have obtained the characterization of particle erosion on internal components and verified the relevant numerical models.The results show that:the particle distribution within the IMSSFB is uneven due to the cyclonic effect of the axial swirl vane(ASV),resulting in particle erosion for the ASV being concentrated on one side;when the gas reaches the top,too high an erosion gas velocity leads to gas backflow.As the filling height increases,there is a tendency for the erosion position of the particles on the ASV to expand upwards.However,the effect of increasing gas velocity on the erosion position is insignificant.

关 键 词：Integral multi-jet swirling spout-fluidized bed Gas–particle hydrodynamics Axial swirl vane Uneven Erosion 

分 类 号：O35[理学—流体力学]