Research on statistical process control for aluminium electrolysis reduction

被引：1
|
作者：
Cao, Danyang [1 ]
Song, Xizhong [1 ]
Li, Jinhong [1 ]
机构：
[1] Beijing Univ Sci & Technol, Sch Comp & Commun Engn, Beijing 100083, Peoples R China
来源：
INDUSTRIAL INSTRUMENTATION AND CONTROL SYSTEMS, PTS 1-4 | 2013年 / 241-244卷
关键词：
statistical process control; aluminium electrolysis reduction; process capability index; control chart;
D O I：
10.4028/www.scientific.net/AMM.241-244.1839
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In order to lower the measurement system errors in aluminum electrolysis reduction, and find out the abnormity of process parameters, this paper considered the process parameters in the production process, used mean-range control chart in statistical process control to analyse aluminium level data during aluminium electrolysis reduction, designed and implemented the statistical process control system for aluminum electrolysis reduction data, presented process improvement method for aluminium level data. Results for the 300KA aluminium electrolysis cell show the statistical process control system can ensure the stability of aluminium electrolysis pot process parameters, find out specific reasons of abnormal data, keep the material balance and energy balance, improve current efficiency, and reduce the energy consumption.
引用
收藏
页码：1839 / 1844
页数：6
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