Influence of multi-factor interactions on particle growth during top-spray fluidized bed agglomeration  

作　　者：Chunyin Wang Jiliang Ma Jialiang Cai Han Pu Xiaoping Chen 

机构地区：[1]Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,School of Energy and Environment,Southeast University,Nanjing,210096,China

出　　处：《Particuology》2024年第11期173-186,共14页颗粒学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(grant No.52276149).

摘　　要：Considering the strong dependence of agglomerate characteristics on various operating parameters,this study employs the control variable methodology(CVM)and response surface methodology(RSM)to investigate the influence of multi-factor interactions on particle growth during top-spray fluidized bed agglomeration.First,CVM is conducted to assess the effects of individual operating parameters on the agglomerate properties,such as mean particle size,relative width,and sphericity.Then,the interactive relationship between these input variables and the quality attributes of the process is investigated using RSM.The results show that the mean particle size increases with the increase of binder viscosity and spray rate,while it decreases with the increase of fluidization gas velocity and inlet gas temperature.The relative width of the particle size distribution increases with the spray rate,binder viscosity,and fluidization gas velocity,and hardly changes with the inlet gas temperature.The mean particle size is more sensitive to the binder spray rate at a lower level of fluidization gas velocity or a higher level of inlet gas temperature.The fluidization gas velocity corresponding to the maximum D_(50) changes when the binder viscosity and binder spray rate are at different levels.

关 键 词：Top-spray fluidized bed granulation AGGLOMERATION Response surface methodology Particle size distribution 

分 类 号：O35[理学—流体力学]