RECIPIENTE METALURGICO QUE COMPRENDE UN ELECTRODO DE SOLERA

EL RECIPIENTE COMPRENDE: LERA QUE SE EXTIENDE A TRAVES DE LA PARED DE FONDO (10) DE LA CUBA (3) Y DEL REVESTIMIENTO (12) Y QUE COMPRENDE, SUPERPUESTOS: REFRACTARIO; IADA INTERIORMENTE, DE DIAMETRO INFERIOR AL DE LA BARRA, Y UNIDA A ESTA POR SU SUPERFICIE FRONTAL SUPERIOR (28), A UN NIVEL SITUADO EN EL ESPESOR DEL REVESTIMIENTO REFRACTARIO (12), Y UN ANILLO (30) SOLIDARIA DE LA CUBA (3), QUE RODEA LA CONTERA (24) Y CUYA CARA SUPERIOR (36) ESTA SITUADA BAJO LA BARRA PARA SOPORTARLA. PARA EVITAR QUE ESTOS MATERIALES LIQUIDOS PENETREN POR INFILTRACION ENTRE LA BARRA Y EL ANILLO, LA BARRA SE PROLONGA HACIA LA PARED DE FONDO (10), POR UNA FALDA (38) QUE RODEA LATERALMENTE LA CONTERA (24). LA INVENCION SE APLICA EN PARTICULAR EN LOS HORNOS DE ARCO DE ACERERIAS DE CORRIENTE CONTINUA. The vessel includes: - a tank (3) and an internal refractory lining (12) of the tank; - a bottom electrode (2) extending through the bottom wall (10) of the tank (3) and the lining (12) and comprising, superposed: - a bar (22) which is flush with the refractory lining; - an adaptor (24) fixed under the bar (22), internally cooled, having a diameter less than that of the bar and connected to this bar by its upper front surface (28) at a level located in the thickness of the refractory lining (12) and - a ring (30), integral with the tank (3) which surrounds the adaptor (24) and the upper face (36) of which is located under the bar in order to support it. In order to prevent liquid materials from penetrating by infiltration between the bar and the ring, the bar is extended towards the bottom wall (10) in a skirt (38) which laterally surrounds the adaptor (24). The invention applies in particular to DC arc furnaces of steelworks.