INFLUENCE OF THE ELECTRODES BLANKS LOCATION ON THE ELECTRIC HEATING POWER DISTRIBUTION IN THE ACHESON FURNACES CORE
The modeling of electromagnetic and thermoelectric processes on the basis of numerical realization by finite element method of the generalized three-dimensional models of DC and AC graphitization is proposed. The features of furnace structure and side busbar packages, spatial arrangement of the electrodes blanks in the conductive backfill of core, temperature dependence of the electromagnetic and thermal properties of materials, technological regimes of graphitization are taken into account. The high accuracy and efficiency of numerical implementation are provided. The character and regularities of the spatial distribution of specific thermal power in the core at the vertical and horizontal location of the electrode blanks in the core are defined. It is revealed that the specific electric resistance of the core is determined by the ratio of specific electric resistance of electrode blanks, backfill materials, shunt layers and don’t practically depend on the orientation of the electrodes blanks in the Acheson furnace. It is found that in vertical stacking of blanks in the Acheson furnace core at diametric section blanks more heating capacity is allocated compared with the horizontal transverse stacking. Intensification of the heating, reduction in the duration the campaign and energy are provided