Submerged nozzle replacement apparatus

Abstract

The present invention provides a submerged nozzle replacement apparatus capable of quickly and easily moving a blank plate to a standby position. The submerged nozzle replacement apparatus 1 of the present invention comprises: a pressing section to press a lower surface of a flange portion of a submerged nozzle 200; an introducing section 4 to, when attaching the submerged nozzle 200, guide said submerged nozzle to the pressing section; an ejecting section 5 to, when detaching the submerged nozzle 200 from the pressing section, guide said submerged nozzle to a detaching position; and a holding section 6 that holds a blank plate 300. The holding section 6 is movable between a first position where the blank plate 300 is opposed to the submerged nozzle 200 in a state of being supported by the pressing section, and a second position where the lower surface of the flange portion of the submerged nozzle can be supported by the holding section 6 and the introducing section 4.

1 . A submerged nozzle replacement apparatus mounted to an under side of a molten steel discharge port of a tundish, the submerged nozzle replacement apparatus comprising:
 a pressing section to press a lower surface of a flange portion of a submerged nozzle;   an introducing section to, when attaching the submerged nozzle, guide said submerged nozzle to the pressing section;   an ejecting section to, when detaching the submerged nozzle from the pressing section, guide said submerged nozzle to a detaching position; and   a holding section that holds a blank plate,   wherein the holding section is movable between a first position where the blank plate is opposed to the submerged nozzle in a state of being supported by the pressing section, and a second position where the lower surface of the flange portion of the submerged nozzle can be supported by the holding section and the introducing section.   
     
     
         2 . The submerged nozzle replacement apparatus as claimed in  claim 1 , wherein the holding section comprises a first holding sub-section that holds the blank plate, and a second holding sub-section capable of supporting the lower surface of the flange portion of the submerged nozzle. 
     
     
         3 . The submerged nozzle replacement apparatus as claimed in  claim 1 , wherein when the holding section is in the first position, a gap is present between the immersion nozzle and the blank plate. 
     
     
         4 . The submerged nozzle replacement apparatus as claimed in  claim 2 , wherein when the holding section is in the first position, a gap is present between the immersion nozzle and the blank plate.