POWDER COATING IN SUSPENDED STATE

摘要：

　　The aim of this paper was the development and testing of a powder coating system for pharmaceuticals,analyzing the effects of system configuration on fluid dynamics and solids flow patterns using model particles.The configuration parameters evaluated were the open area of the gas distributing plate and the presence or absence of a draft tube.Selected system configurations were tested for film coating application on glass beads (composition based on hydroxyl-ethyl-cellulose).The system configuration with internal draft tube and distributor open area ranging from 1.9 to 4.5% showed homogeneous solids circulation flow patterns.Product agglomeration and coating efficiency were significantly affected by particles size and operating conditions.

关键词： Powder coating internally circulating fluidized bed Wurster system

作者: G.Ravagnani W.P.Oliveira

作者单位: University of S(a)o Paulo,Faculty of Pharmaceutical Sciences of Ribeir(a)o Preto Av.do Café s/n,Ribeir(a)o Preto,P.O.B.14040901,Brazil

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-8

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）