FORMATION PECULARITIES OF METALL-SLAG SKULLS ON TWO-LEVEL OXYGEN LANCES AT BLOWING OF CONVERTER BATH
https://doi.org/10.17073/0368-0797-2015-4-248-257
Abstract
The paper considers technological options of converter melting
when using two-level lances of different design. The formation peculiarities of metal and slag scaffold on the surface of two-level oxygen lances at top bath blowing of 160-ton converters, depending on the blowing progress with different levels of foamed slag-metal emulsion formation in the working space of the aggregate are reported. An adjoined three-dimensional mathematical model of hydrodynamic and mass-transferring processes in the slag and metal converter phases is proposed; it can be used for the study of circulation process regularities in the converter cavity at different positions of two-level lance, nozzle number in the upper and lower levels, nozzle angles of inclination, the oxygen consumption through the nozzle and other process parameters. Numerical simulation of metal blowing in a 160-ton converter with the use of two-level lance with fi ve Laval nozzles in the bottom tip and eight nozzles in the top row was carried out. These data form an idea of the nature of the metal and gas and slag phase in the converter.
About the Authors
E. V. Protopopov
Siberian State Industrial University 42, Kirova str., Novokuznetsk, Kemerovo Region, 654007, Russia
Russian Federation
Dr. Sci. (Eng.), Professor, Rector
Russian Federation
Dr. Sci. (Eng.), Professor, Rector
A. G. Chernyatevich
Institute of Ferrous Metallurgy named after Nekrasov Z.I., Ukrainian National Academy 1, Academica Starodubova sqrю, Dnepropetrovsk, 49050, Ukraine
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Head of the Chair of physicotechnical problems of steel metallurgy
S. V. Feiler
Siberian State Industrial University 42, Kirova str., Novokuznetsk, Kemerovo Region, 654007, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Ferrous Metallurgy”
V. V. Vakul’chuk
Institute of Ferrous Metallurgy named after Nekrasov Z.I., Ukrainian National Academy 1, Academica Starodubova sqrю, Dnepropetrovsk, 49050, Ukraine
Russian Federation
Russian Federation
Junior Researcher of the Chair of physicotechnical problems of steel metallurgy
A. N. Sokol
Dneprodzerzhinsk State Technical University 2, Dneprostroevskaya str., Dneprodzerzhinsk, Dnepropetrovsk Region, 51918, Ukraine
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Lecturer of the Chair “Applied Mathematics”
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Review
For citations:
Protopopov E.V., Chernyatevich A.G., Feiler S.V., Vakul’chuk V.V., Sokol A.N. FORMATION PECULARITIES OF METALL-SLAG SKULLS ON TWO-LEVEL OXYGEN LANCES AT BLOWING OF CONVERTER BATH. Izvestiya. Ferrous Metallurgy. 2015;58(4):248-257. (In Russ.) https://doi.org/10.17073/0368-0797-2015-4-248-257
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