Direct current-light arc furnace
AssigneeFlohe GmbH & Co.
InventorsHerbert Dung, Emil Elsner
Life of this patent
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Abstract
A direct current arc furnace, includes a graphite cathode; and a container forming a hearth with a hearth base surface and having a container bottom acting as anode. The container bottom includes a supporting copper-plated sheet steel base consisting of a steel sheet and a copper plating plated on the steel sheet; electrical connection means extending through the steel sheet to contact the copper plating to supply an anode current to the copper plating; and a refractory brick lining having a graphite content above the copper-plated sheet steel base with the copper-plated layer adjacent the brick lining. In a preferred embodiment the graphite content in the brick lining decreases from the vicinity of the copper-plated sheet steel base to the vicinity of the hearth base surface.
Claims8
A direct current arc furnace, comprising a graphite cathode;
- and
- a container forming a hearth with a hearth base surface and having a container bottom, wherein said container bottom includes a supporting copper-plated sheet steel base consisting of a steel sheet and a copper plating on said steel sheet;
- electrical connection means extending through said steel sheet to contact said copper plating to supply an anode current to said copper plating;
- and a brick lining of refractory material arranged on said copper-plated sheet steel base, said copper plating being positioned between said brick lining and said steel sheet.
Dependencies are inferred from the claim text.