To safely and surely execute the removing and the cleaning works of remaining slag in a short time by providing a swingable removal tool for the remaining slag and a finish tool for removing and finishing the residue in a cleaning part.
At the time of a rotating a rotary body 2a in the A direction with a driving part 4, each arm 2c is shifted in the inner wall 33a direction of a nozzle insert hole in a tuyere block 33 while using each arm shaft 2b as the supporting point with the centrifugal force. Then, the tip part of the removal tool 2e is brought into contact with the wreck of a nozzle and the remaining slag, metal, mortar, etc., to remove the residue. Further, as the same way as the removal tool 2e, the finish tool 2f executes te removing and the finishing of the residue developing from the removing of the remained slag, etc., while rotating to the shaft 2d at the time of abutting on the nozzle inserting hole in the tuyere block 33. In such a way, at the time of changing an upper nozzle, the removing work for the remaining slag, etc., and the work for removing and finishing the residue in the inner surface of the tuyere block 33 are mechanized without using human labor and also, since two working processes can be executed in one working process, this work can safely and surely be executed in a short time.
MIZUTANI SHOGO
TSUJIMOTO KENICHI
YAMAZAKI KEISUKE
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