ISSN 2594-5300
51° Seminário de Fusão, Refino e Solidificação de Metais — vol. 51, num.51 (2022)
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Abstract
THE AIM TO THIS PAPER IS EVALUATING THE SLAG PROPERTIES (VISCOSITY, DENSITY, CAO SATURATION CONTENT AND CAO ACTIVITY) ON THE BLOWING BEGINNING ON PARTICLE LIME DISSOLUTION IN THE BOF STEELMAKING PROCESS. THE TESTS WERE CARRIED OUT IN AN ELECTRIC RESISTANCE FURNACE OVEN USING LIME SAMPLES WITH DIAMETERS OF 9.0MM. TO EVALUATE THE INCREASE IN FEO CONTENT DIFFERENT SLAG MIXTURES WERE PREPARED AND IN A SECOND GROUP 5.0G MORE FEO WAS ADDED. THE MAIN DIFFERENCE BETWEEN THE RESULTS OF THIS STUDY AND THE LITERATURE IS IN THE LIME MASS USED. IN THE CASE OF WHAT WAS FOUND IN THE LITERATURE, THE PERCENTAGE AND CAO MASS WAS LOWER THAN THAT USED IN THIS STUDY AND THIS CONTRIBUTED TO A HIGHER DISSOLUTION RATE. THE RESULTS ALSO SHOWED THAT THE HIGHER THE FEO CONTENT IN THE SLAG THE SHORTER THE LIME DISSOLUTION TIMES, AS THEY INTERFERE IN THE INCREASE OF THE DENSITY AND THE LIME ACTIVITY AND IN THE VISCOSITY REDUCTION. IT WAS ALSO FOUND THAT THE HIGHER THE %FEO/%SIO2 RATIO THE LESS LIME IS SPENT TO SATURATE THE SLAG IN LIME DECREASING ITS CONSUMPTION WHICH MAKES THE TERM ∆(%CAO) ONE OF THE GREATEST CHARACTERISTICS INFLUENCE ON THE DISSOLUTION RATE.
THE AIM TO THIS PAPER IS EVALUATING THE SLAG PROPERTIES (VISCOSITY, DENSITY, CAO SATURATION CONTENT AND CAO ACTIVITY) ON THE BLOWING BEGINNING ON PARTICLE LIME DISSOLUTION IN THE BOF STEELMAKING PROCESS. THE TESTS WERE CARRIED OUT IN AN ELECTRIC RESISTANCE FURNACE OVEN USING LIME SAMPLES WITH DIAMETERS OF 9.0MM. TO EVALUATE THE INCREASE IN FEO CONTENT DIFFERENT SLAG MIXTURES WERE PREPARED AND IN A SECOND GROUP 5.0G MORE FEO WAS ADDED. THE MAIN DIFFERENCE BETWEEN THE RESULTS OF THIS STUDY AND THE LITERATURE IS IN THE LIME MASS USED. IN THE CASE OF WHAT WAS FOUND IN THE LITERATURE, THE PERCENTAGE AND CAO MASS WAS LOWER THAN THAT USED IN THIS STUDY AND THIS CONTRIBUTED TO A HIGHER DISSOLUTION RATE. THE RESULTS ALSO SHOWED THAT THE HIGHER THE FEO CONTENT IN THE SLAG THE SHORTER THE LIME DISSOLUTION TIMES, AS THEY INTERFERE IN THE INCREASE OF THE DENSITY AND THE LIME ACTIVITY AND IN THE VISCOSITY REDUCTION. IT WAS ALSO FOUND THAT THE HIGHER THE %FEO/%SIO2 RATIO THE LESS LIME IS SPENT TO SATURATE THE SLAG IN LIME DECREASING ITS CONSUMPTION WHICH MAKES THE TERM ∆(%CAO) ONE OF THE GREATEST CHARACTERISTICS INFLUENCE ON THE DISSOLUTION RATE.
Keywords
Lime dissolution; FeO; Slag; Slag Properties
Lime dissolution; FeO; Slag; Slag Properties
How to refer
Inamara, Inamara Amanda Souza;
Oliveira, Heitor Cristo Clem de;
Grillo, Felipe Fardin;
Souza, Raphael Mariano de;
Oliveira, Jose Roberto de.
INFLUENCE OF SLAG PROPERTIES ON THE BLOWING BEGINNING IN THE LIME DISSOLUTION
,
p. 181-191.
In: 51° Seminário de Fusão, Refino e Solidificação de Metais,
São Paulo,
2022.
ISSN: 2594-5300
, DOI 10.5151/2594-5300-34412
