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10卷    第2期    总第35期    2000年4月

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文章编号:1004-0609(2000)02-0274-04
160 kA预焙铝电解槽区域电流效率
曾水平1,刘业翔2

(1. 北方工业大学自动控制研究所,北京100041; 2. 中南工业大学有色冶金系,长沙410083)

摘 要: 论述了区域电流效率的意义,利用电流效率综合机理模型和区域参数估计模型计算出了160 kA预焙槽的区域电流效率。结果表明,160kA预焙槽中各区域的电流效率很不均匀,最大值与最小值相差20%以上,阳极底掌下的区域电流效率相差可达4%以上。采用区域电流效率的观点,分析了某厂160kA 预焙铝电解槽电流效率的特点,认为低电流效率区域的存在和面积偏大导致电解槽平均电流效率偏低,并由此提出了提高电流效率的途径。

 

关键字: 铝电解;电流效率;预焙铝电解槽

Zone current efficiency in 160kA prebake aluminum electrolysis cell
ZENG Shui-ping1, LIU Ye-xiang2

1. Institute of Automatic Control, North China University of Technology, Beijing 100041, P.R.China;
2. Department of Metallurgy, Central South University of Technology, Changsha 410083, P.R.China

Abstract:The zone current efficiency for prebake aluminum electrolysis cell was investigated. The comprehensive mechanism model for aluminum loss and some semi-empiric equations for calculating the parameters in the cell were used to compute the zone current efficiency in aluminum electrolysis on the basis of previous work. The uneven current efficiency of the whole cell is so obvious that the gap between different zones is over 20%, which varies with the different partitions of zone. According to the analysis of both calculation and measurement, some suggestions were put forward to improve the cell operation and to raise the current efficiency for prebake aluminum production cell.

 

Key words: aluminum electrolysis; current efficiency; prebake aluminum electrolysis cell

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

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

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