摘要
According to fluidization and bond laws for type D particles, the processes from normal fluidization to shut-down controlled by solid-bridge force were investigated by experiment.Near-wall wind and spiral wind were used to improve the bond behavior of coarse cohesive particles in fluidization process.S attractor comparison method was adopted to evaluate various measures.The results showed that both near-wall wind and spiral wind could improve particle bond behavior in total, slowing down bond evolution and decreasing bond effect.Near-wall wind could delay the happening of fluidization abnormalities while spiral wind could bring forward the happening of fluidization abnormalities.S value reflected the bond effect and bond evolution well in various cases, so it could be used as a criterion of fluidization quality in fluidized processes.
According to fluidization and bond laws for type D particles, the processes from normal fluidization to shut-down controlled by solid-bridge force were investigated by experiment.Near-wall wind and spiral wind were used to improve the bond behavior of coarse cohesive particles in fluidization process.S attractor comparison method was adopted to evaluate various measures.The results showed that both near-wall wind and spiral wind could improve particle bond behavior in total, slowing down bond evolution and decreasing bond effect.Near-wall wind could delay the happening of fluidization abnormalities while spiral wind could bring forward the happening of fluidization abnormalities.S value reflected the bond effect and bond evolution well in various cases, so it could be used as a criterion of fluidization quality in fluidized processes.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2011年第1期53-58,共6页
CIESC Journal
基金
国家重点基础研究发展计划项目(2006CB200305)~~
关键词
黏性大颗粒
S吸引子比较法
黏结改善
贴壁风
旋转进风
coarse cohesive particle
S attractor comparison method
bond improvement
near-wall wind
spiral wind
