Process and apparatus for making molten steel

Details Process and apparatus for making molten steel Process and apparatus for making molten steel

1993-05-13

1994-09-27

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75501, 75503, 75504, C22B 400

Patent

active

053504348

ABSTRACT:
The process for making a refined molten steel includes melting preheated solid iron sources and solid carbon sources in a melting vessel with heat generated by electric arc to form a carbon-containing molten material and then melting other preheated solid iron and carbon sources in the carbon-containing molten material by heat generated by combustion reaction in the melting vessel. In the combustion reaction oxygen is fed into the molten material through nozzles located in the melting vessel below the surface of the molten bath. The exhaust gases formed in the melting vessel are used to preheat the solid iron sources and then are burned in an afterburner to reduce pollution. An apparatus for performing the process is also described.

REFERENCES:
patent: 3033673 (1962-05-01), Collin
patent: 4304598 (1981-12-01), von Bogdandy
patent: 4957545 (1990-09-01), Hikosaka
patent: 5000784 (1991-03-01), Takahashi

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