Tuyere for metallurgical vessels

Details Tuyere for metallurgical vessels Tuyere for metallurgical vessels

1976-01-28

1977-05-17

Dost, Gerald A.

Metallurgical apparatus

Process

75 60, 266222, 266268, 266281, C21C 548

Patent

active

040237818

ABSTRACT:
This invention relates to a process for refining metals in a refining vessel, by means of a tuyere embedded in the bottom or sidewall of the vessel and through which a refining gas is blown into the vessel. The tuyere is composed of at least three concentric pipes, the refining gas being made to pass through the central pipe and a protective medium being made to pass into the vessel through the spaces between the pipes which surround the central pipe. All of the pipes except the outermost pipe which is fixedly embedded in the refractory lining of the vessel, are individually movable longitudinally into the vessel.

REFERENCES:
patent: 405392 (1889-06-01), Bertrand
patent: 3811386 (1974-05-01), Knuppel et al.
patent: 3817505 (1974-06-01), LeRoy et al.
patent: 3819165 (1974-06-01), Courard et al.
patent: 3829073 (1974-08-01), Courard

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