Electrolyte Temperature Based Control Method for Aluminum Fluoride Addition in Hall-Heroult Cell

被引：2

作者：

Huang Yongbo ^{[1
,2
]}

Zhou Jiemin ^{[1
]}

Qu Xiangdong ^{[2
]}

S'un Zhiqiang ^{[1
]}

机构：

[1] Cent S Univ, Sch Energy Sci & Engn, Changsha 410083, Hunan, Peoples R China

[2] CHALCO, Guangxi Branch, Aluminum Elect Plant, Baise 531400, Peoples R China

来源：

PROCEEDINGS OF THE 27TH CHINESE CONTROL CONFERENCE, VOL 7 | 2008年

关键词：

Aluminum reduction; Hall-heroult cell; Aluminum fluoride; Addition control; Electrolyte temperature;

D O I：

10.1109/CHICC.2008.4605449

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Addition of aluminum fluoride is an important parameter adopted to control electrolyte temperatures in Hall-Heroult cells. However, determination of the optimal addition is still a difficult issue. This paper puts forward a new control method to select the present-day aluminum fluoride addition optimally based on the yesterday electrolyte temperature. Experiments were carried out on two industrial cells with the same cell age. A proposed prediction correlation for the aluminum fluoride addition was derived from the regression analysis of the test data. The results show that the cell performance is fairly stable through adopting the predicted aluminum fluoride addition in comparison with the existing control method. In view of its simplicity and practicability, this prediction method for aluminum fluoride addition is acceptable in the industrial field.

引用

页码：99 / +

页数：3

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