F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
307/18
F27B 14/02 (2006.01) F27B 3/06 (2006.01) F27B 3/08 (2006.01) F27B 3/12 (2006.01) F27D 1/16 (2006.01) F27D 11/08 (2006.01) F27D 3/00 (2006.01)
Patent
CA 1071676
ABSTRACT OF THE DISCLOSURE A direct arc electric furnace having a tiltable base for pouring molten metal from the furnace. A refractory lined hearth supported by the base is pivotal with respect to the base for tilting to a degree greater than that capable by the base. The furnace includes shell refractory lining material supported upon the hearth encompassed by a removable shell. Replacement of the shell lining is accomplished by removing the shell, collapsing the shell lining into the hearth, and tilting the hearth with respect to the base sufficiently to dump the collapsed lining from the hearth into the pit adjacent the furnace. Further, the use of the tilting and removable hearth permits the hearth to be removed from the base, inverted in the pit, and the re- fractory lining of the hearth may then be readily removed for replacement purposes.
260115
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