Patent ID: 6719944
Filing Date: 2004-04-13
Classification: C21C,F27B,F27D,Y02P,Y10S

Abstract:
An electric steel-making furnace including the combination of:a furnace roof carried by an upper furnace shell on a lower furnace shell to substantially envelop an atmosphere above liquid steel and slag floating thereon in said lower furnace shell, said lower furnace shell having a refractory lining with a deslagging passageway in a sidewall thereof: a transfer car supporting said lower furnace shell for transport from a furnace operating site to a remote exchange site for exchanging one or more of said furnace roof, said upper furnace shell and said lower furnace shell, said transfer car further includes a furnace support frame supported by wheel assemblies; and support including an actuator to tilt said lower furnace shell at said furnace operating site about two fixedly spaced axes on said transfer car in a direction to increase the depth of slag at said deslagging passageway for decanting slag floating on liquid steel in said lower furnace shell, and wherein said actuator includes spaced apart link arms defining said fixedly spaced axes on said transfer car to pivotally interconnect said furnace support frame with said wheel assemblies and wherein said transfer car further includes a drive to control pivotal displacement of said furnace support frame about said link arms.