The utility model provides a kind of submerged entry
nozzle electric heating baking device, including
hearth shell, the wall of
hearth shell includes nanometer microporous heat insulation plate layer,
light clay brick layer and high-
alumina refractory brick layer in turn from outside to inside,
hearth shell is equipped with one or more heat-resistant partition, for the inner cavity of hearth shell is divided into multiple baking chambers, each baking chamber is used to install submerged entry
nozzle, each baking chamber is evenly arranged with multiple
silicon carbide heating rods around the periphery of submerged entry
nozzle, the cold end of each
silicon carbide heating rod is passed through hearth shell and is connected with power supply, hearth shell is equipped with insulating sealing sleeve
pipe at the wall penetration position of each
silicon carbide heating rod. It can meet the high-temperature preheating demand of submerged entry nozzle, and multiple submerged entry nozzles can be simultaneously and evenly electrically heated and radiantly baked, the temperature field distribution of submerged entry nozzle is uniform, local
stress concentration problem is not prone to occur, and the heat insulation effect of hearth shell is good, heat loss is small, and energy
utilization rate is high.