| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a granulation method for efficiently manufacturing fine granulated bodies of a uniform grain size when granulating nuclear fuel powder using a rotary blade type granulating machine. <P>SOLUTION: In a method of granulating nuclear fuel powder by using a rotary blade type granulating machine, the granulation method includes a step of adding and mixing a binder under low-speed rotation of a rotary blade and a step of stopping the rotary blade, measuring an addition amount of the binder and accurately managing the addition amount of the binder, and preferably includes a step of performing agitation at the low-speed rotation without adding the binder before and after the steps. By performing granulation under high-speed rotation thereafter, segregation of the binder is prevented and uniform and fine nuclear fuel granulated bodies are manufactured with excellent reproducibility and at a high yield. <P>COPYRIGHT: (C)2013,JPO&INPIT |
