F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
307/21
F27D 1/02 (2006.01) F27D 1/12 (2006.01) F27D 1/18 (2006.01) F27D 9/00 (2006.01)
Patent
CA 1121422
ABSTRACT OF THE DISCLOSURE A roof assembly for an electric arc furnace formed by a series of water cooled panels supportingly arranged be- tween the water conveying outer ring and a water conveying center ring encircling the electrode-refractory area. One or more of these panels are constructed of a copper face sheet brazed to a steel backing sheet having groups of several machined traverse passageways, and are located in critical areas in the roof. Communicating with each group of passageways is a water entry header and a water discharge header. The outer ring acts as both a water source and drainage for the panels and center ring. The panels are suspended from a self-supporting spider web structure which carries the center ring and is supported by the outer ring.
344347
Hewitt Neville S.
Wean United Inc.
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