LADRILLO PARA EL BARRIDO DE GAS

EN UNA PIEZA DE INYECCION DE GAS CON UNA PARTE EXTERIOR (2) RESISTENTE AL FUEGO E IMPERMEABLE AL GAS, UNA PARTE INTERIOR (3) RESISTENTE AL FUEGO; PERMEABLE AL GAS Y AREA (4) DISTRIBUIDOS DE GAS, SE DEBE SIMPLIFICAR LA CONFIGURACION DEL AREA (4) DISTRIBUIDORA DE GAS. EL AREA (4) DISTRIBUIDORA DE GAS PRESENTA EN EL LATERAL FRONTAL (5) DE LA PARTE EXTERIOR (2) UNA APERTURA LIBRE (6) QUE CONTACTA CON LA PERIFERIA DE UNA SUPERFICIE COMPACTA (7). SOBRE EL LATERAL FRONTAL (5) SE ASIENTA DE FORMA COMPACTA UNA PIEZA OBTURADORA (11) ABRIBLE CON RACORES DE EMPALMES DE GAS (12). A gas washing sink for use in introducing gas through a metallurgical vessel into molten metal therein includes a gas permeable refractory inner brick portion and a gas impermeable refractory outer brick portion surrounding the inner brick portion. The inner and outer brick portions define a first sink end to be exposed to the molten metal. The outer brick portion has an end face defining a second sink end to be directed away from the molten metal. A gas distribution chamber has a first end open to the inner brick portion and a second end opening onto the end face of the outer brick portion and defined thereat by an opening. A sealing surface extending concentrically of the opening has pressed thereagainst, at a pressure sufficient to achieve a seal therebetween, a closure member for closing the second end of the gas distribution chamber and having a gas inlet connection for introducing gas into the gas distribution chamber.