化学工程2017，Vol.45Issue(1)：27-30,35,5.DOI:10.3969/j.issn.1005-9954.2017.01.006
内嵌锥筒连续式多晶硅固渣干燥机的流动行为
Fluid flow in continuous polysilicon slurry dryer with cone
王晓静 1刘雅茜 1黄益平 2马东云 1秦凤祥 2孙启蒙 1徐义明2
作者信息
- 1. 天津大学化工学院,天津300354
- 2. 中建安装工程有限公司,江苏南京210023
- 折叠
摘要
Abstract
A new continuous polysilicon slurry dryer with a cone and ribbons was designed.The fluid flow and particle track were simulated by Fluent and proved by experiment.The result shows that the simulation method in fluid flow and particle track (DPM) and UDF code are correct.Tracked particle's residence time in cone is 15.8％-25.4％ of it in outer cylinder,cone extended slurry's residence time.The rotational structure composed of cone,spoke and ribbon can push the fluid to move:one is axial movement to the exit;the other is the rotary motion along the walls.This movement can form whirlpools and then strengthen heat transfer,and the intensive degree increased with the increase of rotating speed.And inlet velocity had little influence on flow field,it can only affect the flow capacity:the residence time became shorter when the inlet velocity increased,so the drying level decreased.关键词
锥筒/螺带/连续/干燥机/多晶硅Key words
cone/ribbon/continuous/dryer/polysilicon分类
通用工业技术引用本文复制引用
王晓静,刘雅茜,黄益平,马东云,秦凤祥,孙启蒙,徐义明..内嵌锥筒连续式多晶硅固渣干燥机的流动行为[J].化学工程,2017,45(1):27-30,35,5.
