自浮颗粒三相体系的搅拌混合技术(Ⅲ)——气体分布器的影响  

Mixing Technology of Gas Liquid Floating Particle(Ⅲ) Influence of Gas Sparger

作　　者：徐世艾[1] 任万忠[1] 韩晓丽[1] 虞乐舜[1] 王凯[2] 

机构地区：[1]烟台大学化学工程系,山东烟台264635 [2]浙江大学聚合反应工程国家重点实验室,浙江杭州310027

出　　处：《烟台大学学报（自然科学与工程版）》2000年第1期64-69,共6页Journal of Yantai University(Natural Science and Engineering Edition)

基　　金：国家自然科学基金!(29776041) ;山东省自然科学基金!(Y98B07026)

摘　　要：研究了直径不同的气体分布器对自浮颗粒三相体系的颗粒临界分散转速、釜底颗粒浓度、气含率和搅拌功耗的影响，发现：当下层桨为翼盘涡轮、气量较高时采用小气体分布环是最有效的，当下层桨为圆盘涡轮、气量较低时采用大气体分布环较好．The influence of the diameter of gas sparger on mixing of gas?liquid?floating particle in an agitated vessel is investigated. The associated critical rotational speed for particle dispersion, power, gas hold?up and solids concentration at the bottom of the vessel are measured. It is concluded that small sparger is compatible when gas rate is high and WT is used as the lowest impeller, larger sparger is suited when gas rate is low and DT is used as the lowest impeller.

关 键 词：自浮颗粒 三相体系 气体分布器 搅拌混合技术 

分 类 号：TQ027.38[化学工程]