Process and apparatus for refining steel in a metallurgical vess

Details Process and apparatus for refining steel in a metallurgical vess Process and apparatus for refining steel in a metallurgical vess

1983-11-16

1985-05-21

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, C21C 702

Patent

active

045184224

ABSTRACT:
A process and apparatus for the desulphurization, deoxidation and purification of a metal melt is presented. The process is particularly well suited for use in a ladle during the refining of steel. The present invention comprises means for defining at the surface of a melt at least a first working zone preferably via a plunger tube. Thereafter, combustible materials and oxygen are delivered to the working zone at a single impact point, preferably by a plurality of lances or by a multiple flow lance. As a result, a reactive high temperature slag is produced thereby. Finally, the melt is mixed so as to evenly distribute the heat preferably by permeable elements and/or at least one auxiliary lance.

REFERENCES:
patent: 3218157 (1965-11-01), Dobrowsky
patent: 3556773 (1971-01-01), Grenfell
patent: 3907548 (1975-09-01), Steinmetz
patent: 3980469 (1976-09-01), Forster
patent: 4130417 (1978-12-01), Breuer

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