Method of operation of a top-and-bottom blown converter

Details Method of operation of a top-and-bottom blown converter Method of operation of a top-and-bottom blown converter

1982-07-13

1983-09-06

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 59, 266 47, C21C 532, C21C 534

Patent

active

044027397

ABSTRACT:
In the operation of a top-and-bottom blown converter, top-blowing oxygen gas is blown such that the center of a hot spot created by the oxygen gas jet from each of the nozzles of a top-blowing multi-nozzle lance is positioned outside a bubbling region of the molten metal surface which rising bubbles of gas from bottom-blowing tuyeres reach.

REFERENCES:
patent: 3661560 (1972-05-01), Grenfell
patent: 4178173 (1979-12-01), Gorges
patent: 4190238 (1980-02-01), Schoop
patent: 4195985 (1980-04-01), Brotzmann
patent: 4290802 (1981-09-01), Hirata

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