Concentric multi-tube-system nozzle situated beneath the surface

Details Concentric multi-tube-system nozzle situated beneath the surface Concentric multi-tube-system nozzle situated beneath the surface

1982-12-09

1984-03-06

Rutledge, L. Dewayne

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

Having means for simultaneously feeding diverse materials

266270, 138 42, 239553, 239590, C21B 716

Patent

active

044349769

ABSTRACT:
The present invention relates to a concentric multi-tube-system nozzle situated beneath the surface of the melt in a refining vessel, especially a refining vessel for converting molten pig iron into steel.
The stability and life of the concentric double-tube nozzle is the most crucial factor in carrying out refining in a bottom-blown converter.
In accordance with the present invention, there is provided a concentric multi-tube-system nozzle situated beneath the surface of the melt in a refining vessel, comprising:

REFERENCES:
patent: 1762166 (1930-06-01), Fausek et al.
patent: 3703279 (1972-11-01), Saccomano et al.
patent: 3779534 (1973-12-01), Leroy et al.
patent: 4182581 (1980-01-01), Uehara et al.
patent: 4249719 (1981-02-01), Knuppel et al.

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