ELECTRIC FURNACE WITH TILTABLE AND REMOVABLE HEARTH

摘要

ABSTRACT OF THE DISCLOSUREA direct arc electric furnace having a tiltable base forpouring molten metal from the furnace. A refractory lined hearthsupported by the base is pivotal with respect to the base fortilting to a degree greater than that capable by the base. Thefurnace includes shell refractory lining material supported uponthe hearth encompassed by a removable shell. Replacement of theshell lining is accomplished by removing the shell, collapsingthe shell lining into the hearth, and tilting the hearth withrespect to the base sufficiently to dump the collapsed liningfrom the hearth into the pit adjacent the furnace. Further,the use of the tilting and removable hearth permits the hearthto be removed from the base, inverted in the pit, and the re-fractory lining of the hearth may then be readily removed forreplacement purposes.