Metallurgical apparatus – Means for introducing fluent into vessel – e.g. – tuyere – With flow control means or internal flow guide
Patent
1989-06-02
1990-07-03
McDowell, Robert
Metallurgical apparatus
Means for introducing fluent into vessel, e.g., tuyere
With flow control means or internal flow guide
266270, C21C 548
Patent
active
049384619
ABSTRACT:
An impervious refractory plug clad in a metal canister, adapted for insertable registration in an opening in a refractory block of a ladle, is provided with an array of narrow peripheral passages formed in the plug's lateral surface to distribute a flow of inert gas into molten metal within the ladle. The passages are defined by slots preformed in the plug's peripheral surface and the inner surface of the tightly fitted canister. An elongated metallic strip is preferably located in each passage to induce solidification of any molten metal which tends to flow against the output ends of the passages.
REFERENCES:
patent: 4535975 (1985-08-01), Buhrmann et al.
patent: 4560149 (1985-12-01), Hoffgen
patent: 4632367 (1986-12-01), La Bate
patent: 4657226 (1987-04-01), Illemann et al.
patent: 4741515 (1988-05-01), Sharma et al.
Atwell George C.
McDowell Robert
Zedmark Refractories Corp.
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