| 摘要 |
PROBLEM TO BE SOLVED: To provide a crusher for radioactive waste and a replacement method of rotation blade unit capable of performing replacement work of a rotation blade and fix blade etc. remote from the crusher and capable of preventing crushed material from flying away from the crusher to the external environment.SOLUTION: A pair of an insertion guide part 6 and a discharge guide part 7 which are communicate with a crushing part 12 provided with a rotation blade unit 2, and a rotation shaft 23b of the rotation blade unit 2 is connected to a drive shaft 28b that transmits a rotation to the rotation shaft 23b via a detachable joint. In a state that a drive shaft 28b is removed from the insertion guide part 6, a new rotation blade unit 2 is inserted into the insertion guide part 6. The new rotation blade unit 2 is pushed toward the crushing part 12 into the storage container 60 which stores an old rotation blade unit 2 mounted on the crushing part 12 into the discharge guide part 7. Subsequently, the new rotation blade unit 2 is mounted on the crushing part 12; thus, the replacement work can be carried out. |
