PURPOSE: To prevent the damage of the water-cooled wall of an electric furnace as well as the loss of arc heat by fixing plural spouting nozzles for obliquely spouting gas toward the surface of molten metal under the nozzles to scatter molten slag in all directions in the water-cooled wall.
CONSTITUTION: An electric furnace is composed of the body 1, a lid 4 and plural electrodes 5 placed through the lid 4. The body 1 has a water-cooled wall 3 on the periphery of a molten metal reservoir 2 having a tap hole 2a. Plural spouting nozzles 6 are fixed in the wall 3 and molten slag 7 is scattered by obliquely spouting gas from the nozzles 6 toward the surface of molten metal under the nozzles 6 to form a slag film on the whole surface of the wall 3.
KAMEYAMA EIHIKO
KOREYASU MASAHIRO
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