Numerical analysis of enhanced mixing in a Gallay tote blender

作     者：Xinxin Ren Guangzheng Zhou Ji xu Lijie Cui Wei Ge 

作者机构：State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2016年第14卷第6期

页      面：95-102页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0814[工学-土木工程] 081201[工学-计算机系统结构] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：This work was supported by the National Key Basic Research Program of China under Grant No. 2015CB251402  the National Natural Science Foundation of China under Grant Nos. 21206167  21225628  91434201  and 91334204  the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No. XDA07080203  and CAS Interdisciplinary Innovation Team 

主　　题：Powder mixing Tote blender Granular materials Discrete element method Simulation Baffle 

摘      要：The mixing performance of a multi-bladed baffle inserted into a traditional Gallay tote blender is explored by graphic processing unit-based discrete element method software. The mixing patterns and rates are investigated for a binary mixture, represented by two different colors, under several loading profiles. The baffle effectively enhances the convective mixing both in the axial and radial directions, because of the disturbance it causes to the initial flowing layer and solid-body zone, compared with a blender without a baffle. The axial mixing rate is affected by the gap between the baffle and the wall on the left and right sides, and an optimal blade length corresponds to the maximum mixing rate. However, the radial mixing rate increases with the blade length almost monotonically.