Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第25卷    第8期    总第197期    2015年8月

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文章编号:1004-0609(2015)08-2259-09
铜电解槽内电解液流场的数值模拟
李明周1, 3,黄金堤2,童长仁1,张文海1,周孑民3,李贺松3,张 鹏4

(1. 江西理工大学 冶金与化学工程学院,赣州 341000;
2. 江西理工大学 软件学院,南昌 330013;
3. 中南大学 能源科学与工程学院,长沙 410083;
4. 福建紫金矿冶设计研究院,上杭 364200
)

摘 要: 以国内某冶炼厂铜电解槽为原型,基于计算流体力学,利用Fluent软件对铜电解槽内流场进行数值模拟,并对槽内不同特征截面上电解液流动状态进行分析。结果表明:模拟计算得到的槽面电解液流动状况与现场观测结果基本吻合,从而验证模拟结果的有效性;采用该“下进上出”电解液循环方式对槽内特征区域电解液的有效流量进行计算,发现电解液有效利用率仅15.41%左右。针对该问题分析成因后提出了具体建议和措施,为进一步优化电解槽结构、改进操作工艺和扩大产能提供理论依据。

 

关键词: 铜电解;流场;数值模拟;流动状态

Numerical simulation of electrolyte flow in copper electrolytic cell
LI Ming-zhou1, 3, HUANG Jin-di2, TONG Chang-ren1, ZHANG Wen-hai1, ZHOU Jie-min3, LI He-song3, ZHANG Peng4

1. School of Metallurgy and Chemical Engineering, Jangxi University of Science and Technology,
Ganzhou 341000, China;
2. School of Software, Jiangxi University of Science and Technology, Nanchang 330013, China;
3. School of Energy Science and Engineering, Central South University, Changsha 410083, China?
4. Fujian Zijin Design and Research Institute of Mining and Metallurgy, Shanghang 364200, China

Abstract:With the copper electrolytic cell of domestic copper smelter as the prototype based on computational fluid dynamics, the flow fields in the copper electrolytic cell were simulated with Fluent software,and the flow condition of electrolyte on different characteristics cross-section inner cell were analyzed. The results show that the electrolyte flow conditions from simulation basically agrees well with the local observation results, then, the effectiveness of simulation results is validated. The electrolyte effective flux in characteristic region using the “Bottom inlet to top outlet” circulation way of electrolyte were calculated, and the effective utilization of the electrolyte is only about 15.41%. After analyzing of the causes for the problem, the specific suggestions and measures were proposed,and the theoretical basis to optimize the cell structure, improve operation process and expand capacity was put forward.

 

Key words: copper electrolysis; flow field; numerical simulation; flow condition

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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