摘要
振动流化床因具有流化气速低、传热传质速率快等优点,近年来在粗颗粒加工领域很受欢迎,但受实验条件等制约,其基础理论还不完善。分类概述了单组分、双组分及多组分粗颗粒振动流化特性及离析分离实验研究进展,介绍了粗颗粒振动流化计算流体力学模拟研究动态,指出其未来发展趋势:对异类粒群混合物床层振动流化与混合分离特性、流化流相图与流相转变临界条件等稳定控制机制基础理论研究。
With such advantages as low fluidization velocity, high heat and mass transferring speed and so on, the vibrated fluidized bed is popular in coarse particle processing. Due to experimental limitation, its basic theory is not perfect. This paper summarizes the experimental research achievements about fluidization characteristics and segregation pattern of monodisperse,binary and polydisperse coarse particles,introduces CFD simulation study dynamics,and points out its future development trends： the basic theory research on fluidization, mixing and segregation characteristics of fluidized bed made of heterogeneous mixtures,the stability control mechanism on fluidization flow diagrams and critical conditions of phase transformation.
出处
《煤炭工程》
北大核心
2015年第10期115-118,共4页
Coal Engineering
基金
国家重点基础研究发展计划(973)资助项目(2012CB214904)
关键词
振动流化床
粗颗粒
单组分颗粒
双组分颗粒
多组分颗粒
计算流体力学
vibrated-fluidized-bed
coarse-particle
monodisperse-particle
binary-particle
polydisperse-particle
computational fluid dynamics
