Abstract
Slag vortexing, Reoxidation of the liquid steel from tundish open eye with high superheat casting are main causes behind many customer complains as well as high rejection of metal in integrated steel plants. In present investigation a novel stopper rod with refractory water cooled sub-chamber has been proposed. This is capable to reduce 60% skull generation and will help to reduce supeheat of liquid steel within the tundish nearly 50%. A Novel Filter Shroud concept has been developed which will capable to generate 'No Tundish Eye' formation. This will avoid re-oxidation of liquid steel during transfer of liquid steel from ladle to tundish. Finally a modified multi reactor with argon purging technology has been proposed as a future scope of study. All design concepts are studied computationally by ANSYS FLUENT Software. All proposed works are patentable.
Highlights
Slag entrainment, yield improvement and re-oxidation of liquid steel have got tremendous importance in recent decade
40% re-oxidation of steel melt happen during transfer of the liquid steel from ladle to tundish in continuous casting caster due to formation of tundish open eye [5]
Slag entrainment during drainage of liquid steel from tundish at the end of each sequence casting is the main reason behind this huge amount of metal and money loss
Summary
Yield improvement and re-oxidation of liquid steel have got tremendous importance in recent decade. Stopper rod, Superheat, Tundish open eye, Re-oxidation, Filter shroud, Water cooled Sub-Chamber, Multi reactor with argon purging
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