Arc furnace roof

Details Arc furnace roof Arc furnace roof

1979-07-24

1981-06-16

Envall, Jr., Roy N.

13 32, F27D 102, F27D 112

Patent

active

042739497

ABSTRACT:
An arc furnace roof has a central portion formed by a circular group of individually suspended segments having sides which cooperatively form openings for the passage of arcing electrodes. Each segment is formed by a metal shell having cooling water inlets and outlets and internal baffles causing cooling water to be guided through the shell so that cooling is adequate to avoid the need for lining the bottoms of the segments with thick refractory linings, the bottoms being only coated with a thin layer of refractory electrical insulation. The electrode openings have refractory electrical insulation to isolate the segments from electrode currents.

REFERENCES:
patent: 4107449 (1978-08-01), Sosonkin et al.

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