铜电解槽的极间短路温度效应  

Temperature Effect of Interelectrode Short-circuit of Copper Electrolytic Cell

作　　者：曾箐雨 蒙毅 李纯 铁军 赵仁涛 ZENG Qingyu;MENG Yi;LI Chun;TIE Jun;ZHAO Rentao(School of Mechanical and Materials Engineering,North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学机械与材料工程学院,北京100144

出　　处：《湿法冶金》2020年第5期429-433,共5页Hydrometallurgy of China

基　　金：国家自然科学基金资助项目(21978004)。

摘　　要：极间短路对铜电解精炼电流效率有显著影响。用光纤电流传感器和K型热电偶分别检测铜电解槽极间短路过程的阴极电流和阴极导电棒与槽间导电排凸台搭接点温度,确定温度与电流呈现一致的分段式增长模式。利用电热耦合方程建立了阴极导电棒与槽间导电排的多物理场模型,模拟了温度随短路电流变化情况。论证了利用槽间导电排凸台温度变化信息诊断极间短路的可行性。研究结果可为开发基于温度变化的极间短路快速检测技术提供支持。Interelectrode short-circuit affects the current efficiency of copper electrorefining.The optical fiber current sensor and K-Thermocouple were used to monitor the short-circuit current between the electrodes and the connection point temperature of cathode current-conducting rod with cell conductive bar.It is found that the temperature is the same piecewise growth pattern with current.The multi-physical field model of the cathode current-conducting rod and cell conductive bar is established by the electrothermal coupling equation,and the change of temperature with short-circuit current is simulated.The feasibility of diagnosing interelectrode short-circuit by the temperature change of intercell bar is demonstrated.The results can provide data for rapid diagnostic method for interelectrode short-circuit based on temperature trend.

关 键 词：电解 铜 极间短路 电流 温度 测量 数值模拟 

分 类 号：TF811[冶金工程—有色金属冶金]