Aluminum electrolyzer control system
Thread Content
Abstract of the aluminum electrolyzer control system: Through industrial experimental studies, the relationship curve between the apparent resistance of the aluminum electrolyzer and the alumina concentration was determined. On this basis, by analyzing the experimental data, a fuzzy control model for alumina concentration was established, enabling regulated feeding to the aluminum electrolyzer and significantly reducing the anode effect coefficient. At the same time, models for self-diagnosis of cell conditions, pole pitch adjustment, automatic correction of set voltage, and prediction of anode effects were developed and successfully applied in a new type of aluminum electrolysis cell control box based on PLC control. Keywords PLC, fuzzy control, alumina concentration, effect prediction, pole distance control. Introduction: Many organizations at home and abroad have been working on the development and research of automatic control technologies for aluminum electrolysis. Starting from early methods such as constant-region adjustment of cell voltage or apparent cell resistance, as well as timed feeding controls, to more recent adaptive control techniques used abroad, and now to the fuzzy control of alumina concentration employed in China
The slot control machines used in China are mainly those developed by the Zhengzhou Research Institute of China Aluminium Corporation and those developed by Central South University.
The Shenyang Aluminum and Magnesium Research Institute is the earliest and also the best.