Reversible refractory plate in sliding closure unit and method f

Details Reversible refractory plate in sliding closure unit and method f Reversible refractory plate in sliding closure unit and method f

1986-08-07

1987-10-27

Sheehan, John P.

Metallurgical apparatus

Process

Plugging or tapping

266287, 222600, 222590, B22D 4108

Patent

active

047024607

ABSTRACT:
A refractory plate used as a stationary and/or as a movable closure plate in a sliding closure unit for discharging molten metal from a metallurgical vessel includes a refractory plate body having parallel opposite planar surfaces. A first discharge opening extends through the body between the parallel surfaces and is used for initial operation. At least one other discharge opening extends through the body between the parallel surfaces and is sealingly closed by a stopper plug of refractory material. Upon erosion damage to the first discharge opening, such damaged opening may be closed by a stopper plug of refractory material, the stopper plug may be removed from the other discharge opening, and the plate may be reversed such that the other discharge opening then is employed for further operation of the plate.

REFERENCES:
patent: 3684267 (1972-08-01), Andrzejak et al.
patent: 3866806 (1975-02-01), Shapland, Jr.
patent: 4141478 (1979-02-01), Meier
patent: 4314659 (1982-02-01), Shapland
patent: 4376501 (1983-03-01), Hafner et al.
patent: 4601416 (1986-07-01), Schittknecht et al.
Russian Language Document "Modern Methods in the Operation of Cupola Furnaces", 12/1960, pp. 28-31, by A. A. Ananjin.
"On Further Developments of Basic Ceramic Components in Sliding-Gate System", Wilfried Deilmann et al, 1979, pp. 1156-1168.

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