Slide gate nozzle including sequentially replaceable refractory

Details Slide gate nozzle including sequentially replaceable refractory Slide gate nozzle including sequentially replaceable refractory

1993-11-23

1995-07-04

Kastler, Scott

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

With means to discharge molten material

222600, B22D 4128

Patent

active

054293421

ABSTRACT:
A slide gate nozzle for controlling the discharge of molten metal from a spout of a converter vessel includes a refractory bottom plate to be positioned stationarily with a discharge opening thereof aligned with an opening of the spout. A refractory slide valve plate is mounted for sliding movement relative to the bottom plate such that a discharge opening of the slide valve plate is brought into and out of alignment with the discharge opening of the bottom plate. A plurality of refractory shut-off plates are positioned sealingly between the bottom plate and the slide valve plate. A coupling mechanism is operably mounted to the shut-off plates to sequentially connect the shut-off plates rigidly either to the bottom plate or to the slide valve plate. As a result, the shut-off plates may be used sequentially to replace the slide valve plate.

REFERENCES:
patent: 4260081 (1981-04-01), Detalle et al.
patent: 4520860 (1985-06-01), Haissig et al.

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