VERTICAL MAGNETIC FIELD SYMMETRY IN ALUMINUM ELECTROLYSIS CELLS

摘要

This paper shows the results of the magnetic field calculations within an aluminum electrolysis cell in an industrial plant, and we emphasize the asymmetry of the vertical components of the magnetic field. Then we show the results obtained following the introduction of some additional bars in order to get the symmetry of these vertical components. We get a total symmetry and so a reduction of the specific electric energy consumption is possible by interpolar distance decrease.