| 摘要 |
<p>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. <IMAGE></p> |
