TY - GEN
T1 - Modelling research of high gas flow rate blowing of the liquid steel in the ladle unit
AU - Merder, Tomasz
AU - Pieprzyca, Jacek
AU - Warzecha, Marek
PY - 2016
Y1 - 2016
N2 - The application of wire scrap from tire recycling can be very important, especially when the steel is melted in induction furnace. However, in the induction furnace there is no possibility for steel decarburization because of the danger of lining erosion, and as a result unavoidable furnace failure due to liquid metal leakage. Thus, this operation can be moved outside the furnace, to the ladle. Proposals of such solution are found in literature, especially with application of blowing the liquid steel by the gas-oxygen mixture through the bottom of the ladle and the further secondary treatment in ladle furnace. Such innovative way of decarburization of liquid steel in ladle with bottom blowing by gas-oxygen mixture was the main object of the presented research. The aim of this research, conducted on the physical model, was the preliminary identification of hydrodynamic conditions caused by the intensive mixing of modelling liquid by the gas. During such research, the mechanism of gas bubbles cone creation was observed. The following parameters are also very important: the level of gas bubbles dispersion in the modelling liquid, behavior of the modelling liquid surface as a result of flowing out gas bubbles, and the flow rate of occurring breakouts of modelling liquid, above the height of modelling liquid surface.
AB - The application of wire scrap from tire recycling can be very important, especially when the steel is melted in induction furnace. However, in the induction furnace there is no possibility for steel decarburization because of the danger of lining erosion, and as a result unavoidable furnace failure due to liquid metal leakage. Thus, this operation can be moved outside the furnace, to the ladle. Proposals of such solution are found in literature, especially with application of blowing the liquid steel by the gas-oxygen mixture through the bottom of the ladle and the further secondary treatment in ladle furnace. Such innovative way of decarburization of liquid steel in ladle with bottom blowing by gas-oxygen mixture was the main object of the presented research. The aim of this research, conducted on the physical model, was the preliminary identification of hydrodynamic conditions caused by the intensive mixing of modelling liquid by the gas. During such research, the mechanism of gas bubbles cone creation was observed. The following parameters are also very important: the level of gas bubbles dispersion in the modelling liquid, behavior of the modelling liquid surface as a result of flowing out gas bubbles, and the flow rate of occurring breakouts of modelling liquid, above the height of modelling liquid surface.
KW - High intensity gas blowing
KW - Ladle
KW - Liquid steel
KW - Physical modeling
UR - https://www.scopus.com/pages/publications/85010837012
M3 - Conference contribution
AN - SCOPUS:85010837012
T3 - METAL 2016 - 25th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings
SP - 210
EP - 215
BT - METAL 2016 - 25th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings
PB - TANGER Ltd.
T2 - 25th International Conference on Metallurgy and Materials, METAL 2016
Y2 - 25 May 2016 through 27 May 2016
ER -