| 摘要 |
PURPOSE:To smoothly draw out an injecting pipe and to prevent the damage at repairing part at the time of drawing out by blowing refractory repairing material from the injecting pipe inserted into a steel tapping hole, pressing the repairing material by a pressing metal and drawing out the injecting pipe as removing the pressing metal. CONSTITUTION:The injecting pipe 3 is inserted into the partial melted steel tapping hole 14 of a converter 13 as parallel and coinciding with center axial line and the refractory repairing material 12 is supplied as sending to pipe 3, to blow on the working face at the inner circumference of the hole 14 from an injecting nozzle 8. Then, the pipe 3 is rotated to rotate the nozzle 8, and the pipe 3 is gradually repeated to go forward and backward, to line the repairing material 12. Further, coated repairing material 12 is executed to finish coating as pressing at inner circumferential face of the hole 14 by side circumferential face of repairing material pressing metal 9 at tip part of the pipe 3. And, when the nozzle 8 part reaches the furnace inside of converter 13, the pipe 3 is reversely rotated and the metal 9 screwed at the tip of pipe 3 is removed to drop into the furnace and in succession, the pipe is drawn back.
|
