ISSN 2594-5300
28º Seminário de Aciaria — Vol. 01 , num. 28 (1997)
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Abstract
Recent papers in the North American literature have shown that existing tundish furniture designs can have a negative impact both on the quality of steel produced during the ladle transition period and on the predictability and repeatability of mixed grade casting practices. They further report on the application of novel Turbulence Suppression designs that reduce the variability of flow during this transitionary phase. This paper documents the experiences at two North American steelplants and details the methodology undertaken to firstly watermodel the existing tundish design configurations and compares the results both at steady state and at ladle change with novel Turbulence Suppressing flow modification systems. In addition to the steady state residence time and ladle change mixed grade studies, a variety of physical methods were used to identify pourbox slag emulsification, and vortex flow formation at both steady state and during ladle change. The paper also documents the impact on the steelmaking process of both the existing flow systems and the new designs and relates this to the incidence of nozzle clogging, slab downgrades, yield and quality in the finished slabs at the steelplants.
Recent papers in the North American literature have shown that existing tundish furniture designs can have a negative impact both on the quality of steel produced during the ladle transition period and on the predictability and repeatability of mixed grade casting practices. They further report on the application of novel Turbulence Suppression designs that reduce the variability of flow during this transitionary phase. This paper documents the experiences at two North American steelplants and details the methodology undertaken to firstly watermodel the existing tundish design configurations and compares the results both at steady state and at ladle change with novel Turbulence Suppressing flow modification systems. In addition to the steady state residence time and ladle change mixed grade studies, a variety of physical methods were used to identify pourbox slag emulsification, and vortex flow formation at both steady state and during ladle change. The paper also documents the impact on the steelmaking process of both the existing flow systems and the new designs and relates this to the incidence of nozzle clogging, slab downgrades, yield and quality in the finished slabs at the steelplants.
Keywords
Tundish, Fluid Flow, Turbulence Suppression
Tundish, Fluid Flow, Turbulence Suppression
How to cite
Dainton, Albert Edward.
Development of a Novel Tundish Flow System: The Application and Results in North American Steelplants,
p. 365-380.
In: 28º Seminário de Aciaria,
São Paulo, Brasil,
1997.
ISSN: 2594-5300, DOI 10.5151/2594-5300-28Aciaria-365-380
