Method of switching bottom-blown gases and apparatus therefor

Details Method of switching bottom-blown gases and apparatus therefor Method of switching bottom-blown gases and apparatus therefor

1982-02-23

1983-07-26

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 59, 266 47, 266 89, C21C 534

Patent

active

043952836

ABSTRACT:
A method of switching bottom blown gases and an apparatus suitable for carrying such method into practice in blowing successively in turn a plurality of gases through piping into molten steel in a steel-making furnace through tuyeres or porous plugs for gas blowing located in a lower portion of the steel-making furnace. The method includes the step of directly releasing into atmosphere at least a portion of the gas flowing in and through the piping in response to a rise in the pressure of the gas when switching the blown gases.

REFERENCES:
patent: 3992194 (1976-11-01), Leroy
patent: 3997334 (1976-12-01), Dlubek
patent: 4045214 (1977-08-01), Wetzel
patent: 4047937 (1977-09-01), Kolb
patent: 4050681 (1977-09-01), Brotzmann
patent: 4272286 (1981-06-01), Schempp

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