Physical Modeling of Side-Blown Converters

• In order to increase the knowledge of the metallurgical process in an AOD converter, physical modeling has been done. The work has been focused on the chemical reactions, measuring the pH level in a NaOH solution with injection of CO2 gas. Also, some trials have been made to investigate the effect of the slag phase upon the flow field using PIV measurement. The effect of different ratios of solid/liquid slag on the flow field and slag entrapment has been studied. It was found that the mass transfer product of CO2 in water, kwA, increase with an increased gas flow rate and bath height. Furthermore, the effect of slag layer on the flow field was also found necessary to consider in order to more realistically resemble the actual system in an industrial AOD. Here, it was found necessary to take the solid fraction of the slag into account to describe the viscosity of an AOD slag.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)

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