摘要
目的研究外加离子风风场对粉体充填过程粉尘落袋的影响,探究离子风机应用于粉体除静电包装的可行性。方法基于气固耦合机理,利用Fluent软件,使用κ-ε湍流模型与离散相模型(DPM),模拟外加风场情况下粉体包装的粉尘落袋过程,分析离子风风速对不同粒径粉尘颗粒捕获率的影响。结果模拟结果显示,在外加离子风风场风速≤0.4m/s时,风场对粉尘颗粒捕获率影响较小,在风速为0.4~0.6m/s时,对直径1~30.m的粉尘颗粒的捕获率有明显的提升作用。结论通过设置适当的离子风风速,外加风场不会加剧粉体充填过程中出现的扬尘,在粉体填充包装过程中使用离子风机消除静电是可行的。
The work aims to study the effect of ionic wind field on dust bagging in powder filling process,and to explore the feasibility of ionic fan applied in powder electrostatic packaging.Based on the mechanism of gas-solid coupling,the dust bagging of powder packaging was simulated by the κ-ε turbulence model and the discrete phase model (DPM) through Fluent software,and the effects of different ion wind speed on the capture rate of dust particles in different particle sizes were analyzed.The simulation results showed that when the wind speed of the applied ionic wind field was ≤0.4 m/s,the influence of the applied wind field on the dust particle capture rate was small.When the wind speed was in the range of 0.4 m/s-0.6 m/s,the capture rate of dust particle with particle diameter of 1 micron to 30 micron was obviously increased.Setting appropriate ion wind speed will not aggravate the dust in the powder filling.It is feasible to use ion blower to eliminate static electricity in the powder filling and packaging.
作者
孟坤鹏
李永祥
徐雪萌
唐静静
李飞翔
陈静
MENG Kun-peng;LI Yong-xiang;XU Xue-meng;TANG Jing-jing;LI Fei-xiang;CHEN Jing(School of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou 450001,China)
出处
《包装工程》
CAS
北大核心
2019年第15期170-174,共5页
Packaging Engineering
基金
国家重点研发计划(2018YFD0400704)
河南省科技厅自然科学项目(182102110163)
关键词
粉体包装
气固耦合
静电消除
powder packaging
gas-solid coupling
electrostatic elimination
