Industrial electric heating furnaces – Arc furnace device – Furnace body detail
Patent
1984-04-19
1987-01-13
Envall, Jr., Roy N.
Industrial electric heating furnaces
Arc furnace device
Furnace body detail
E27D 112
Patent
active
046370340
ABSTRACT:
A water cooling panel forms a part of or substitute for the wall of a metallurgical furnace, such as an electric arc furnace. The panel can be formed alternately as a tube type cooler formed of parallel pipes connected at its ends in headers, with the latter having internal baffles to define a serpentine path, or as a box type cooler formed of steel plates or sheet and having internal baffle plates defining a serpentine path for the cooling fluid. In either case, fluid orificies are provided to permit a minor amount of flow through the baffles or baffle plates where there is a direction change in the serpentine flow path. This serves to prevent stagnation, and prevent the problems of hot spots and steam bubbles where there is a change of direction in the cooling flow. Projections welded along the furnace-facing side of the panel permit the panel to be covered with a layer of refractory material or solidified slag.
REFERENCES:
patent: 4207060 (1980-06-01), Zangs
patent: 4273949 (1981-06-01), Fischer et al.
Bleimann et al., An Update on Electric Arc Furance Melting with Water Cooled Side Panels and Up to 100% Sponge Iron, Iron and Steel Engineer, Aug. 1978, pp. 1-5.
K. S. Roberts & O. E. Prenn, Hot Spot Protection for UHP Electric Arc Furnaces Progress Report, I&SM, Apr. 1976, pp. 22-26.
Dr-Lng Ludger Zangs, Water-Cooled Linings for Direct Arc Melting Furnaces, Steel Times, Oct. 1978, pp. 912-916.
L. J. Voisinet, Worldwide Look at Electric Arc Furnace Performance, I&SM, Mar. 1975, pp. 44-49.
Envall Jr. Roy N.
Hylsa, S.A.
S. Safford A. Thomas
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