APPARATUS FOR OPENING MOLTEN METAL EXIT OF LADDLE UTILIZING POROUS PLUGS INSERTED IN HEAT RESISTANCE BRICKS FORMING THE EXIT

摘要

PURPOSE: An apparatus for opening molten steel exit of ladle promptly and effectively by inserting porous plug into supporting brick of the molten steel exit of the ladle and crushing sintered filler layer using argon gas ejected from the porous plug, thereby opening the molten steel exit of the ladle is provided. CONSTITUTION: In a ladle comprising a molten steel exit consisting of upper and lower supporting bricks(21,22), the apparatus for opening the molten steel exit of the ladle using porous plug inserted supporting brick is characterized in that at least one of porous plug(51) is arranged at the right place of the upper supporting brick(21), and an inert gas is supplied into the porous plug(51) through a pipe connected to the porous plug(51) so that the supplied gas is emitted into the molten steel exit through the front end part inside the ladle of the porous plug(51), wherein the porous plug is consisted of two or more porous plugs(51,52,53) arranged at different locations inside the upper supporting brick(21), and the porous plugs(51,52,53) are arranged in such a manner that the front end part inside the ladle of each of the porous plugs(51,52,53) has different height position.