Piptyuk Vitaly Petrovich, PhD (Engin.), Senior Research Scientist, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail;piptyuk_vp@i.ua ORCID 0000-0002-2915-1756
Prokopenko Pavel Grigorovich, chief metrologist, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107
Grekov Stanislav Viktorovich, Research Scientist, Head of Department, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail;GSV4321@i.ua, ORCID 0000-0003-2848-0999
Andrievsky Georgy Alexandrovich, junior researcher, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail:
grifon1787@gmail.com

Investigation of the effect of slag on mixing of a bucket bath at bottom
blowing by a method of physical modeling

Abstract. The purpose of the work is to determine the effect of slag on the
processes of mixing the steel melt in the ladle during its bottom purge. The
study by physical modeling was carried out on a transparent bucket model with
its bottom purge without slag layer and, if any, it was present. Water was used
as the liquid of the metal, and slag was sunflower oil. The bath was washed
with air at various costs. Controled the thickness of the slag layer and the
surface area of the metal surface from it. The level of conductivity of a water
bath was determined depending on the variables. A slight decrease in the
electrical conductivity of the melt mist (water) in the presence of slag is
observed, as well as an increase in the thickness of the slag layer and the
surface area of the melt surface with increasing air flow. The factors which can
be applied for the calculation of hydrodynamic processes during the processing
of steel on the “ladle-furnace” installation, taking into account the slag
component, are revealed. It is shown that when the air flow increases, the
diameter of the water released from the slag (oil) increases, and when the
volume of the latter is stored, the thickness of its layer increases. The
expediency of continuation of researches by cold physical modeling of
hydrodynamics, heat and mass transfer with and without slag is shown, which
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will allow them to be taken into account in hot modeling and in industrial
conditions.
Keywords: ladle furnace, modeling, slag, calculation of hydrodynamic
processes, electrical conductivity
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