Side mounted lance for ladles

Details Side mounted lance for ladles Side mounted lance for ladles

1985-09-06

1986-05-13

Rosenberg, Peter D.

Metallurgical apparatus

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

By means introducing treating material

75 53, 266217, 266218, C21C 532

Patent

active

045881707

ABSTRACT:
A nitrogen bubbling lance for a hot metal ladle having a refractory lining has a refractory body shaped to facilitate the positioning of the lance in a vertical groove in the side wall of the ladle so as to become part of the refractory lining. A tubular member is positioned longitudinally within the lance and communicates with one or more openings in the lower side wall thereof communicating with the interior of the ladle and the molten hot metal therein. The openings are plugged with porous or nonporous material. Nitrogen introduced through the tubular member is delivered through the openings and/or the porous plugs to bubble upwardly through the molten hot metal in a stirring action.

REFERENCES:
patent: 3230075 (1966-01-01), Nakamura
patent: 3310238 (1967-03-01), Bryant
patent: 3945820 (1976-03-01), Brotzmann
patent: 3961779 (1976-06-01), Tiberg
patent: 4179103 (1979-12-01), Bentz
patent: 4211553 (1980-07-01), Honkaniemi
patent: 4389245 (1983-06-01), Blair
patent: 4401466 (1983-08-01), Wells
patent: 4433832 (1984-02-01), Butts

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