Method and apparatus for introducing gas into molten metal baths

Details Method and apparatus for introducing gas into molten metal baths Method and apparatus for introducing gas into molten metal baths

1987-02-24

1988-07-19

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266265, C21B 716

Patent

active

047582693

ABSTRACT:
A method and apparatus for introducing gas into a molten metal bath contained within a refractory-lined vessel by the distribution of gas bubbles in the metal bath. The distribution is disbursed and covers a wide areas and mixing within the bath is improved. This is accomplished with the use of a tuyere having a plurality of passageways which cause gas passing through the tuyere to exit into the bath as a series of gas jets which exit from the tuyere at an angle to its longitudinal axis. Preferably, the passageways in the tuyere are spiral so as to produce a swirling or vortical gas motion within the bath.

REFERENCES:
patent: 3574603 (1971-04-01), Rassenfoss
patent: 3645520 (1972-02-01), Acre et al.
patent: 4413815 (1983-11-01), Duhomez
patent: 4462824 (1984-07-01), Nauman

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