Shroud for arc furnace

Details Shroud for arc furnace Shroud for arc furnace

1985-01-29

1987-01-20

Envall, Jr., Roy N.

Industrial electric heating furnaces

Environmental control

Arc furnace

951151, 266158, F27D 2300

Patent

active

046384871

ABSTRACT:
A suction duct having two opposed suction ports is disposed at the top wall of a shroud for a steel making arc furnace such that the two suction ports are in opposed relationship with respect to each other across an opening formed through the top wall of the shroud for permitting the lateral movement of a scrap bucket suspension device. An injection pipe or pipes are horizontally disposed in the suction port such that the injection pipes disposed in one of the suction ports are staggered vertically with respect to those disposed in the other suction port. A fluid is horizontally sprayed from a nozzle or nozzles of the injection pipes across the opening so that vertically spaced fluid shelves are formed across the opening.

REFERENCES:
patent: 3149191 (1964-09-01), McFeaters et al.
patent: 3760446 (1973-09-01), Payton
patent: 3772448 (1973-11-01), Bowermaster et al.
patent: 3913888 (1975-10-01), Wolters
patent: 3938788 (1976-02-01), Josten
patent: 4088824 (1978-05-01), Bouistalli
patent: 4089640 (1978-05-01), Overmyer et al.
patent: 4160117 (1979-07-01), Schempp
patent: 4395023 (1983-07-01), Tomizawa et al.

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