黑龙江科技大学学报2023，Vol.33Issue(6)：854-860,7.DOI:10.3969/j.issn.2095-7262.2023.06.013
气体分布板对制粒流化床流化质量的影响
Influence of gas distribution plate on fluidization quality of fluidized bed granulation
刘训涛 1刘福灿 1沙宇峰 2刘金辉2
作者信息
- 1. 黑龙江科技大学 机械工程学院,哈尔滨 150022
- 2. 哈尔滨纳诺机械设备有限公司,哈尔滨 150078
- 折叠
摘要
Abstract
This paper presents an investigation of the influence of structural parameters of gas distri-bution plates on particle circulation at work of a granulation fluidized bed,and proposes three different structural designing methods for gas distribution plates.The study consists of employing Euler-Euler method and using Hertz-Mindlin no-slip contact model;utilizing CFD-DEM simulation method to compare the performance differences among different distribution plates;and revealing the fluidization process and dynamic characteristics behind particles in fluidized bed under the three types of gas distribution plates with different perforation.The results indicate that as installing the distribution plate A and distribution plate B,the unstable circulation is generated inside the fluidized bed,with particles exhibiting periodic motion around the wall surface,with low expansion height of the bed,with particles accumulating near the inner wall,as which is unfavorable for the mixing of gas and solid phases.As the distribution plate C installed,symmetrical circulation is formed inside the fluidized bed,with the effect of gas on particles en-hanced,the particles exhibiting a circulating motion,the higher bed expansion height,and more efficient mixing of gas and particle.关键词
流化床/气体分布板/气固两相流/动力学特性Key words
fluidized bed/gas distribution plate/gas-solid two-phase flow/kinetic characteristic分类
数理科学引用本文复制引用
刘训涛,刘福灿,沙宇峰,刘金辉..气体分布板对制粒流化床流化质量的影响[J].黑龙江科技大学学报,2023,33(6):854-860,7.
