Process for melting scrap iron, sponge iron and/or solid pig iro

Details Process for melting scrap iron, sponge iron and/or solid pig iro Process for melting scrap iron, sponge iron and/or solid pig iro

1988-08-22

1990-05-15

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C21B 1100

Patent

active

049254898

ABSTRACT:
For the purpose of melting scrap iron, pelletized sponge iron in reduced condition, solid pig iron or the like, there is introduced into the melting heat from below a charge-accepting receptacle by means of burners the carbon content within the molten bath is adjusted by a sub-stoichiometric combustion of hydrocarbon. Addition of any coal to the charged material is avoided. By reducing the oxygen flow, in particular by performing the combustion with approximately 0.9-times of the stoichiometric amount of oxygen, and by optionally adding slag formers, the aggressivity of the slag in relation to the furance lining is simultaneously reduced.

REFERENCES:
patent: 2546936 (1951-03-01), Vignos
patent: 3772000 (1973-11-01), Hyde et al.
patent: 3982926 (1976-09-01), Geck et al.
patent: 4001008 (1977-01-01), Stift
patent: 4203761 (1980-05-01), Rose
patent: 4556418 (1985-12-01), Syska

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