FURNACE WITH AUXILIARY ELECTRODES BETWEEN MAIN ELECTRODES TO REDUCE LINING EROSION

摘要

An electric reduction furnace with a furnace vessel having a refractory lining and electrodes which are connected to a three-phase current power supply unit and which extend into the furnace vessel. In the region between, in each case, two first electrodes and the wall of the furnace vessel, additional second electrodes are provided which form with each two of the first electrodes substantially isosceles triangles. The additional second electrodes extend substantially parallel to the first electrodes and are electrically connected to the furnace lining.