FILTER FOR REMOVING NONMETALLIC INCLUSION IN MOLTEN STEEL

摘要

PURPOSE:To adsorb away a fine Al2O3 inclusion by installing cylindrical refractories of lime by paralleling the axial direction thereof in the flow direction of a molten steel, between the inflow port and outflow port for the molten steel in a tundish. CONSTITUTION:Cylinders 1 formed of lime refractories are stacked between a long nozzle 3 which charges a molten steel from a ladle into a tundish 2 and a charging nozzle 4 which charges the molten steel from the tundish 2 into a continuous casting mold. Said cylinders are held by a keep plate 5 and are thus prevented from floating. The refractories 1 are so disposed that the axial direction thereof parallels with the flowing direction of the molten steel in the tundish 2. Fine Al2O3 is thus absorbed by the refractories 1 and the refractories 1 are hardly eroded.