摘要
对不同粒径的°SiC粘性颗粒的流态化实验表明，颗粒粒径对流化性能有较大影响，颗粒粒径越小，颗粒间粘附力越大，其流化性能越差；提出了粘性颗粒自然聚团数Ae_n和流态化聚团数Ae_f，用来表征颗粒的流化性能；指出了应开展粘性颗粒聚团流态化的研究。
The fluidization of cohesive particles of different sizes shows that the fluidization characteristics are greatly affected by the size of particles.The smaller the size of particles,the larger the interparticle forces,and the worse the fluidization behavior.The natural agglomerate number Ae_n and the fluidized agglomerate number Ae_f，which can be used to describe the fluidization behavior of particles,are proposed on the basis of balance of forces between the agglomerate and the outer-most cohered particles.The calculation of the fluidzed agglomerate number Ae_f shows that cohesive particles can be fluidized if the fluidized agglomerate number Ae_f≤40000．
出处
《化工学报》
EI
CAS
CSCD
北大核心
1998年第5期528-533,共6页
CIESC Journal
基金
国家自然科学基金!No.29736190
关键词
碳化硅
粘性颗粒
聚团流态化
粒径
流态化
cohesive particles,agglomerate fluidization,cohesive force,agglomerate number
