| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxygen cleaning device of a ladle nozzle which is capable performing oxygen cleaning in the state where an air seal pipe is kept attached to a ladle nozzle and eliminates need of a replacing work of an air seal pipe.SOLUTION: An oxygen cleaning device of a ladle nozzle is equipped with: an oxygen gas piping 42 which is inserted from a lower opening of an air seal pipe 25 such that an opening of a tip portion 42a faces vertically upward in the air seal pipe 25; and a filler removing lance 46 which is inserted from an upper opening of the air seal pipe 25 and connected to the tip portion 42a of the oxygen gas piping 42. The filler removing lance 46 has: a first pipe 44; and a second pipe 45 which can go up/down with respect to the first pipe 44 and to the tip portion of which an ignition agent is attached. When the oxygen gas piping 42 and the filler removing lance 46 are inserted into the air seal pipe 25, the first pipe 44 of the filler removing lance 46 is connected to the tip portion 42a of the oxygen gas piping 42. |
