Multiflow refining blastpipes for equipping converters for refin

Details Multiflow refining blastpipes for equipping converters for refin Multiflow refining blastpipes for equipping converters for refin

1979-11-05

1981-07-07

Rosenberg, P. D.

Metallurgical apparatus

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

Having means for simultaneously feeding diverse materials

C21B 716

Patent

active

042770548

ABSTRACT:
Improvements in multiflow refining blastpipes for equipping converters for refining and including at least two concentric tubes 1 and 3, which define between them an annular gap 4 and an annular ring 8 connected by welding onto the outer tube 3, which consist in arranging at the end of the outer tube 3 which is located next to the inlet for the fluids into the blastpipe, a shoulder 12 prolonged by a cylindrical portion 13 which defines an annular chamber 14 for the introduction of a protective fluid, and in arranging the annular ring 8 on the said cylindrical portion 13.

REFERENCES:
patent: 3781002 (1973-12-01), Courard
patent: 3898079 (1975-08-01), Eriksson
patent: 4023781 (1977-05-01), Fritz
patent: 4040612 (1977-08-01), Leroy

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