桨叶层数对导流筒搅拌槽内搅拌影响的数值模拟  

Numerical simulation of the influence of blade layer number on the stirring characteristics in draft tube stirred tank

作　　者：罗璇 冯羽生[2] 逄启寿[3] LUO Xuan;FENG Yusheng;PANG Qishou(College of Machinery and Electronics,Jiangxi Environmental Engineering Vocational College,Ganzhou 341000,Jiangxi,China;School of Economics Management,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;School of Mechanical and Electrical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西环境工程职业学院机械与电子学院,江西赣州341000 [2]江西理工大学经济管理学院,江西赣州341000 [3]江西理工大学机电工程学院,江西赣州341000

出　　处：《有色金属科学与工程》2023年第5期728-733,共6页Nonferrous Metals Science and Engineering

基　　金：江西省教育厅科学技术研究项目(GJJ160621);江西省高校人文社会科学研究项目(GL19127)。

摘　　要：搅拌桨叶层数对导流筒搅拌槽的搅拌特性有着极其重要的影响。以赣南某稀土企业容积为10m3的导流筒搅拌槽实物模型数据为参考,利用Solidworks三维软件建立了导流筒搅拌槽及不同搅拌桨叶层数的三维模型。运用流体软件Fluent对其进行网格等数据处理,然后根据相关公式选取桨叶层间距450mm为基础数据,以相近性原则选取甘油水溶液为载体,对料液在不同搅拌桨叶层数的导流筒搅拌槽中的混合过程进行仿真模拟。以时均速度分布、速度、湍流动能和功率消耗等参数作为评价依据,选不同桨叶层数的导流筒搅拌槽的搅拌特性进行分析评价,验证了双层搅拌桨叶的导流筒搅拌槽的搅拌特性较好。The number of stirring blade layers has an extremely important effect on the stirring characteristics of the draft tube stirred tank.In this paper,the physical model data of a draft tube stirred tank with a volume of 10 m3 in a rare earth enterprise in the southern part of Jiangxi province were taken as a reference,and a three-dimensional model of the draft-tube stirred tank and different layers of the stirring blades was established using SolidWorks 3D software.The 3D model was processed by the fluid software FLUENT,and the blade intervals of 450 mm were selected as basic data according to the relevant formula.The glycerin aqueous solution was selected as the carrier according to principle of similarity,and the stirring process of material and liquid in the stirring tank with different stirring blade layers number was simulated.Based on the parameters of time-averaged velocity distribution,velocity,turbulent kinetic energy,and power consumption,the stirring characteristics in draft tube mixing tank with different stirring blade layer numbers were analyzed and evaluated,verifying the optimal stirring characteristics of the draft-tube stirred tank with double-layer impeller blades.

关 键 词：搅拌桨叶层数 导流筒搅拌槽 数值模拟 搅拌特性 

分 类 号：TF804.2[冶金工程—有色金属冶金]