THE RISE COURSE REVISION DEVICE OF LANCE

摘要

The present invention raises the main lance to inject oxygen into the molten steel after use, and then removes it to the outside to replace the lance, which is attached to the outer surface side of the main lance to prevent frictional damage to the main lance hole of the hood. The ascending path correction apparatus, and the cylinder 10 is rotatably mounted to the frame 180 on the upper side of the lance hole 122 formed above and below the hood 120 via the pin 11, and the cylinder 10 At the end of the rod 21 mounted so as to be able to move forward and backward, the female thread forming member 30 is rotatably mounted via the pin 21, and the screw shaft is screwed to the female thread forming member 30. A handle 50 is provided at 40, and a bracket on which the lance support roll 70 is rotatably mounted to the front end of the screw shaft 40 to have a shape substantially the same as the outer surface of the lance 110. Rotating the lance support part 60 including 62 It is mounted so that the female threading member 30, one end of the support rod 80 to be mounted to the frame 180 via the pin 82 is rotatably mounted via the pin 81. It features.