Device for Preventing Ingress of Floating Matter on Free Surfaces of Ladle and Tundish During Continuous Casting Process

Abstract

A device for preventing ingress of floating matters on the free surfaces of a ladle and a tundish, each having a discharge port, during a continuous casting process according to an embodiment of the present invention is configured for installation at the discharge ports of the ladle and the tundish, and comprises: a disc-shaped plate; and a support part installed at the plate and configured to support the plate on a surface around each of the discharge ports of the ladle and the tundish, wherein each of the ratio of the radius of the discharge port of the ladle to the width of the plate and the ratio of the radius of the discharge port of the tundish to the width of the plate has a value equal to or greater than 1.

1 . A device for preventing ingress of floating matters on free surfaces of a ladle and a tundish, the ladle and the tundish each having a discharge port, during a continuous casting process, the device configured for installation at the discharge ports of the ladle and the tundish, and comprising:
 a disc-shaped plate; and   a support part installed at the plate and configured to support the plate on a surface around each of the discharge ports of the ladle and the tundish,   wherein each of a ratio of a width of the plate to a radius of the discharge port of the ladle and a ratio of the width of the plate to a radius of the discharge port of the tundish has a value equal to or greater than 1.   
     
     
         2 . The device of  claim 1 , wherein each of the ratio of the width of the plate to the radius of the discharge port of the ladle and the ratio of the width of the plate to the radius of the discharge port of the tundish has a value equal to or greater than 2. 
     
     
         3 . The device of  claim 1 , wherein each of the ratio of the width of the plate to the radius of the discharge port of the ladle and the ratio of the width of the plate to the radius of the discharge port of the tundish has a value less than or equal to 8. 
     
     
         4 . The device of  claim 3 , wherein each of the ratio of the width of the plate to the radius of the discharge port of the ladle and the ratio of the width of the plate to the radius of the discharge port of the tundish has a value less than or equal to 4. 
     
     
         5 . The device of  claim 1 , wherein a ratio of a distance between surfaces around the plate and the discharge port to the radius of the discharge port of the ladle or a ratio of the distance between the surfaces around the plate and the discharge port to the radius of the discharge port of the tundish has a value equal to or greater than 2. 
     
     
         6 . The device of  claim 5 , wherein the ratio of the distance between the surfaces around the plate and the discharge port to the radius of the discharge port of the ladle or the ratio of the distance between the surfaces around the plate and the discharge port to the radius of the discharge port of the tundish has a value less than or equal to 4. 
     
     
         7 . The device of  claim 1 , wherein the support part includes a plurality of protruding elements protruding from the plate. 
     
     
         8 . The device of  claim 7 , wherein the plurality of protruding elements are arranged to be spaced apart from each other in a circumferential direction with respect to a central portion of the plate.