Water-cooled roof of electric-arc furnace

Details Water-cooled roof of electric-arc furnace Water-cooled roof of electric-arc furnace

1976-09-20

1978-08-15

Envall, Jr., R. N.

F27D 900

Patent

active

041074491

ABSTRACT:
A water-cooled roof comprises a roof ring of a circular cross section, and the ring supports a box-shaped structure welded from metal plates. The structure consists of two portions, a central portion in the form of a hollow disc and a peripheral portion in the form of a hollow ring. The joint between the central and peripheral portions is packed with a gasket of an electric-insulating material. The roof is lined with a refractory material from the side of the furnace.
The endurance of such a roof exceeds that of a conventional roof 25 - 30 times.

REFERENCES:
patent: 1992465 (1935-02-01), Blagg
patent: 3756172 (1973-09-01), Brereton et al.
patent: 3967048 (1976-06-01), Longenecker

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