流化床喷雾造粒产品粒度分布的影响因素研究  

Investigation of Factors Effecting Fluidized Bed Granulation Production's Granularity Distribution

作　　者：宋志军[1] 程榕[1] 郑燕萍[1] 孙勤[1] 杨阿三[1] 贾继宁[1] 

机构地区：[1]浙江工业大学化学工程与材料学院,浙江杭州310014

出　　处：《中国粉体技术》2005年第2期34-36,43,共4页China Powder Science and Technology

摘　　要：在一下端直径188mm、上端直径396mm、高1000mm的倒锥形流化床喷雾造粒器内,以碳酸钙(CaCO3)粉末作为制药工业上的替代性原料,以明胶作为粘结剂,实验研究了床层温度、流化气速、雾化空气压等因素对造粒产品粒度分布的影响。结果表明,在本实验范围内,造粒产品颗粒的平均粒径随着流化气速、床层温度、雾化空气压的增大而减小,且粒度分布趋向于发散。With gelatin as bond solvent and calcite as substitutes using in pharmacy industry, the effects of fluidizing gas velocity, bed temperature, nozzle air pressure and solution concentration on fluidized bed granulation production’s granularity distribution are studied experimentally in a reverse batch conical fluidized bed with a bottom diameter of 188 mm, upper diameter of 396 mm and height of 1 000 mm. The experimental results show that average diameter deceased with increasing gas velocity, bed temperature and air pressure.

关 键 词：造粒 碳酸钙 明胶 柱度分布 

分 类 号：TQ026.7[化学工程]