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    • 24. 发明专利
    • Solidification processing method of radioactive waste
    • 放射性废物的固体加工方法
    • JP2009281964A
    • 2009-12-03
    • JP2008136490
    • 2008-05-26
    • Toshiba Corp株式会社東芝
    • MIKURA MICHITAKASATO TATSUAKIKAWABE AKIHIROOKANO TOSHIAKIOKITA SOSHIYAMASHITA TAKEOHARUGUCHI YOSHIKOSHOJI YUICHIKANEKO MASAAKI
    • G21F9/30
    • PROBLEM TO BE SOLVED: To provide a solidification processing method of radioactive wastes capable of solidifying a radioactive waste to have a highly reduced volume and high strength by an easy process in a short time.
      SOLUTION: A binder in a powder form (powdery binder) 10 formed by mixing at least an inorganic binder composed of an alkali silicate compound, a curing accelerator composed of a cement material, and a lubricant is added to a radioactive waste in a powder form (dried powdery material) 11 obtained by drying a radioactive waste and processing it into a powder form, and the mixture is mixed with a high speed vertical blade mixer 1. Subsequently, water 12 is added as a binder auxiliary, and the powdery mixture 13, which is a mixture obtained by mixing with the high speed vertical blade mixer 1, is press-molded into a pellet form by a granulating machine 2 and cured to provide a granulated material 14.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够在短时间内通过简单的方法使放射性废物固化而具有高度减小的体积和高强度的放射性废物的固化处理方法。 解决方案:将至少由碱性硅酸盐化合物组成的无机粘合剂,由水泥材料组成的固化促进剂和润滑剂混合形成的粉末形式的粘合剂(粉末粘合剂)10加入到放射性废物中 通过干燥放射性废物并将其处理成粉末形式的粉末形式(干燥粉末状材料)11,并将混合物与高速立式叶片混合器1混合。随后,加入水12作为助剂, 作为通过与高速立式叶片混合器1混合获得的混合物的粉末混合物13通过造粒机2被压制成颗粒形式并固化以提供造粒材料14.版权所有(C) 2010年,JPO&INPIT