APPLICATION OF MATHEMATICAL METHODS TO OPTIMIZE ALUMINIUM PRODUCTION INPRE-BAKED ANODE CELLS

摘要

The OA-300 cell as well as the aluminium production technologyin 300 kA cells were developed by “SibVAMI”. At present,studies aimed at increasing current load in the cell are performed.330 kA amperage has been reached and a possibility of furtheramperage increase is studied. Mathematical modeling methodswere used in order to study possibilities of current increase andforecast results.The paper is dedicated to two of them: numerical modeling in theANSYS system and proper estimation coefficient to make up theanode change sequence. Numerical modeling of temperaturefields in the cell was performed using parametrical construction ofthe model. Such an approach allowed estimation the cellefficiency at increased amperage. Estimation coefficient ofcurrent distribution irregularity in anodes is suggested as well assoftware for design of anode change sequences is described in thepaper. The principle for the anode change sequence is suggestedto provide the most uniform current distribution in the anodes.