摘要
建立了双向平行流铜电解过程计算机仿真模型,详细分析了电解液流场的分布情况。研究结果表明,整个铜电解槽内的流动情况有4种:1)阴阳极板间及槽体两端近似半圆弧的双向旋转流动;2)电解槽侧壁由上至下的径向流动;3)槽体底部由高到低的水平流动;4)槽体角落区域形成的回流死区。槽体中,喷嘴和出口区域流速最大,流速范围为4.00×10^(-4)~2.73×10^(-1)m/s;槽体两侧区域流速在4×10^(-4)~8×10^(-4)m/s之间变化;阴阳极板之间流域、槽体底部流域和两端流域速度相对较小,流速在4.88×10^(-8)~4.00×10^(-4)m/s之间。槽体底部电解液整体向出口流动,但X方向上电解液有从槽体高处缓慢向槽体低处流动的趋势,有利于阳极泥的收集和排放。
The simulation model of copper electrolysis process with bi-directional parallel flow was established in this paper,and the distribution of electrolyte flow field was analyzed in detail.The results show that there are four kinds of flow conditions in the electrolytic cell:the first is the bi-directional rotating flow with approximate semi-circular arc between anode and cathode plates and at both ends of the cell,and the second is the radial flow from top to bottom on the side wall of the electrolytic cell,the third is the horizontal flow from high to low at the bottom of the tank,and the fourth is the reflux dead zone formed in the corner area of the tank.In the tank,the flow velocity in the nozzle and outlet area is the largest,and the flow velocity range is 4.00×10^(-4)~2.73×10^(-1)m/s;The flow velocity at both sides of the tank is 4×10^(-4)~8×10^(-4)m/s;The velocity of the area between anode and cathode plates,the bottom of the tank and at both ends is relatively small,and the velocity is 4.88×10^(-8)~4.00×10^(-4)m/s.The electrolyte at the bottom of the tank flows to the outlet as a whole,but the electrolyte tends to flow slowly from the high part of the tank to the low part of the tank in the X direction,which is conducive to the collection and discharge of anode mud.
作者
王志刚
李明周
徐明明
张红亮
WANG Zhigang;LI Mingzhou;XU Mingming;ZHANG Hongliang(Central South University School of Metallurgy and Environment,Changsha,Hunan 410083,China;China Nerin Engineering Co.,Ltd.,Nanchang,Jiangxi 330038,China;Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000,China)
出处
《有色冶金设计与研究》
2022年第4期9-13,共5页
Nonferrous Metals Engineering & Research
基金
国家自然科学基金资助项目(项目编号:62133016)。
关键词
双向平行流
铜电解
流场
仿真
bidirectional parallel flow
copper electrolysis
flow field
simulation
