UN METODO, CON SU CORRESPONDIENTE APARATO, PARA EL INTERCAMBIO DEL SUPLEMENTO REFRACTARIO PERMEABLE, EN LOS DEPOSITOS DECOLADA.

摘要

A vessel, such as a ladle or converter has a wall having extending therethrough a bore. A tube is fixed in a gas tight manner within the bore. The tube has therethrough a cylindrical passage. At least one gas permeable insert is fitted in a gas tight manner within the passage. The insert may be a pre-shaped insert or may be a mass tamped and packed into the passage. The insert may be replaced by drilling the insert from the passage of the tube and fitting a new insert within the passage. A gas connection is connected to the outer end of the tube to supply gas into the tube and through the insert into the interior of the vessel.