种分槽改进Intermig桨搅拌性能的实验研究  

Experimental Study on Mixing Performance of Improved Intermig Impeller in an Alumina Seed Precipitator

作　　者：王淑婵[1] 张廷安[1] 张超[2] 刘燕[1] 赵秋月[1] 

机构地区：[1]东北大学材料与冶金学院多金属共生矿生态化利用教育部重点实验室,辽宁沈阳110004 [2]沈阳铝镁设计研究院,辽宁沈阳110001

出　　处：《过程工程学报》2011年第2期204-208,共5页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(编号:50974035);国家重点基础研究发展规划资助项目(编号:2007CB613504);辽宁省青年人才基金资助项目(编号:2005221012);教育部高校博士点专项基金资助项目(编号:20050145029);中国博士后科学基金资助项目(编号:20090451277);辽宁省财政厅/省计划资助项目(编号:200921007)

摘　　要：为了研究改进的Intermig桨的搅拌性能,在无挡板的氧化铝种分搅拌槽内,采用PC6D颗粒浓度测量仪对水-玻璃珠液-固体系在不同条件下的颗粒轴向和径向局部浓度进行了测量与分析.结果表明,较高的搅拌转速和体系粘度更有利于固体颗粒的悬浮.粘度μ=3.50×10-3Pa·s、转速n=172r/min时,实验浓度平均值是理论浓度平均值的1.011倍,可见该条件下实验浓度值与理论浓度值更接近,混合更均匀.In order to study mixing performance of a new-style impeller,improved Intermig impeller,in an unbaffled stirred tank of alumina seed precipitator,the profiles of local solid concentration in a liquid-solid system of water-glass bead particles were measured using a PC6D fiber optic reflection probe and analyzed at different conditions.The results showed that the high agitation speed and viscosity of the system are more conducive to uniform distribution.When μ=3.50×10-3 Pa·s and n=172 r/min,the multiple relationship of average values of the practice and theory is 1.011 times.It shows that the experimental concentration is closer to theoretical one under this condition,resulting in more even mixing.

关 键 词：Intermig桨 种分槽 混合 浓度分布 转速 粘度 

分 类 号：TQ021.1[化学工程]