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1. 发明专利

JP2004069348A Nuclear fuel reprocessing and agitation type powder dissolving apparatus 有权
公开(公告)号：JP2004069348A
公开(公告)日：2004-03-04
申请号：JP2002225654
申请日：2002-08-02
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , Japan Nuclear Cycle Development Inst States Of Projects , 日立エンジニアリング株式会社 , 株式会社日立製作所 , 核燃料サイクル開発機構
发明人： YAMAI HIDEKI , OURA MASATO , UCHIDA KAZUNARI , WASHITANI TADAHIRO , KOYAMA TOMOZO
IPC分类号： B01F1/00 , G21C19/46
CPC分类号： G21C19/46 , B01F1/0011 , B01F1/0016 , B01F2001/0083 , B01F2215/0095 , G21F9/28 , Y02W30/883
摘要： PROBLEM TO BE SOLVED: To solve the problems that ascending swirl occur along walls of a dissolver tank at an upper part of an agitator and that undissolved particulates flow out of an extraction opening for a dissolved solution at an upper part of the dissolver tank. SOLUTION: This powder dissolving apparatus comprises the dissolver tank; the agitator rotation-freely arranged in the dissolver tank; and an ascent preventing means arranged in the dissolver tank at a location above the agitator in order to prevent powder from ascending in a swirl due to the rotation of the agitator. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2007101206A Method and device for melting treatment 有权
标题翻译：用于熔融处理的方法和装置
公开(公告)号：JP2007101206A
公开(公告)日：2007-04-19
申请号：JP2005287583
申请日：2005-09-30
申请人： Fuji Denki Thermosystems Kk , Japan Nuclear Cycle Development Inst States Of Projects , Mitsubishi Materials Corp , 三菱マテリアル株式会社 , 富士電機サーモシステムズ株式会社 , 核燃料サイクル開発機構
发明人： WASHITANI TADAHIRO , TOYA YUICHI , SASAKI TAKASHI , NISHIKAWA TAKESHI , MORITA ARIMICHI
IPC分类号： G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide a method and device for melting treatment of radioactive contaminated metal capable of efficiently separating radioactive material 8 and steel-based metal 9 and improving the safety. SOLUTION: In the method for melting treatment of the radioactive contaminated metal, the steel-based metal 9 and radioactive material 8 are separated from a nuclear fuel rod 2 as radioactive contaminated metal contaminated with the radioactive material 8 in a melting furnace 15. The nuclear fuel rod 2 is crushed, the crushed mixed waste (c) is heated and floated with the melting furnace 15, and the molten metal 21 separated in the melting furnace 15 is tapped to a mold 22. After melting the mixed waste (c), the heat amount is reduced before tapping, slug 20 produced by solidifying the radioactive material 8 is formed on the surface of liquid 23, and only the molten metal 21 is tapped. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够有效分离放射性物质8和钢基金属9并且提高安全性的放射性污染金属的熔融处理方法和装置。解决方案：在放射性污染金属的熔化处理方法中，将钢基金属9和放射性材料8作为放射性污染金属与核燃料棒2分离，在放射性污染金属8中在熔化炉15中将核燃料棒2粉碎，用熔化炉15将粉碎的混合废弃物（c）加热浮起，在熔融炉15中分离的熔融金属21被轻敲到模具22上。在混合废物（ c），在攻丝之前热量减少，在液体23的表面上形成通过固化放射性物质8产生的块塞20，并且只有熔融金属21被敲击。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2003043187A Reprocessing apparatus of spent nuclear fuel 有权
标题翻译：代替核燃料燃料的替代装置
公开(公告)号：JP2003043187A
公开(公告)日：2003-02-13
申请号：JP2001230289
申请日：2001-07-30
申请人： Japan Nuclear Cycle Development Inst States Of Projects , 核燃料サイクル開発機構
发明人： KOBAYASHI TSUGUYUKI , FUKUSHIMA MINEO , KOYAMA TOMOZO , KOIZUMI KENJI , KOIZUMI TSUTOMU , WASHITANI TADAHIRO
IPC分类号： G21C19/44 , C25C3/34 , C25C7/00 , G21C19/46 , H05B6/22
CPC分类号： Y02W30/882 , Y02W30/883
摘要： PROBLEM TO BE SOLVED: To enhance flexibility in a container arrangement, to enlarge an apparatus, to increase a throughput, and to lengthen the service life by integrating a cathode and an anode as an electrode module. SOLUTION: This reprocessing apparatus has a crucible 31 for housing molten salt 30, a heating means (a heating furnace 32) for heating the molten salt, and the electrode module 33 inserted into the molten salt. The electrode module is composed of the bar-shaped cathode 37 positioned in the center, the cylindrical anode 38 positioned at an interval to surround the cathode, and an insulating material 39 for joining and holding both, and is formed as a structure that a suction port 40 opens in a lower part of the anode, and a discharge port 41 opens in the vicinity of a molten salt liquid level of the anode. Deposit is deposited on the cathode by electrolysis by carrying an electric current to the molten salt between the anode and the cathode in a state of dissolving spent nuclear fuel in the molten salt. The molten salt is sucked in from the suction port by a gas lift effect using gas generated in the anode, and is made to flow out to the outside of the anode from the discharge port, and the molten salt in the crucible is agitated.
摘要翻译：要解决的问题：通过将阴极和阳极作为电极模块进行集成，提高容器布置的灵活性，扩大设备，提高生产量，延长使用寿命。解决方案：该再处理装置具有用于容纳熔融盐30的坩埚31，用于加热熔融盐的加热装置（加热炉32）和插入熔融盐中的电极模块33。电极模块由定位在中心的棒状阴极37，围绕阴极的间隔定位的圆柱形阳极38和用于接合和保持两者的绝缘材料39构成，并且形成为吸引端口40在阳极的下部开口，排出口41在阳极的熔盐液面附近开口。通过在将废核燃料溶解在熔融盐中的状态下，通过在阳极和阴极之间的熔融盐中携带电流，通过电解将沉积物沉积在阴极上。通过使用在阳极中产生的气体的气举效应从吸入口吸入熔融盐，使其从排出口流出到阳极的外部，搅拌坩埚中的熔融盐。

4. 发明专利

JP2005054209A Electrolyzer for oxide electrolytic process 有权
标题翻译：氧化铝电解工艺电解液
公开(公告)号：JP2005054209A
公开(公告)日：2005-03-03
申请号：JP2003206262
申请日：2003-08-06
申请人： Japan Nuclear Cycle Development Inst States Of Projects , 核燃料サイクル開発機構
发明人： KOIZUMI KENJI , OKAMURA NOBUO , WASHITANI TADAHIRO , AOSE SHINICHI
IPC分类号： G21C19/44 , C22B7/00 , C22B34/12 , C22B59/00 , C25C3/34 , C25C7/00 , C25C7/02
CPC分类号： G21C19/46 , C22B7/001 , C22B34/129 , C22B59/00 , Y02P10/214 , Y02W30/883 , Y10S204/07
摘要： PROBLEM TO BE SOLVED: To provide an electrolyzer for oxide electrolysis where the bias of electrodeposited products can be prevented, further, the improvement of a treatment rate and the improvement in the durability of a crucible are attained, and the recycling of used nuclear fuel can be performed by a dry reprocessing method on a commercial scale. SOLUTION: A common cathode 12 and two kinds of anodes different in shape and arrangement (wherein, the first anode 14 provided on the lower direction of the cathode and the second anode 16 provided in parallel with the cathode) are installed inside an electrolytic cell 10. A first electrolysis control part 18 is connected between the cathode and the first anode, and a second electrolysis control part 20 is connected between the cathode and the second anode. The cathode and each anode can be one or may be a plurality of pieces. Then, the object 22 to be treated in the electrolytic cell is subjected to electrolytic treatment using a combination of the cathode and one of the anodes as the main electrolysis, and a combination of the cathode and the other anode as auxiliary electrolyte. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供可以防止电沉积产物的偏压的氧化物电解用电解槽，进一步提高了处理率的提高和坩埚的耐久性的提高，并且使用了核燃料可以通过商业规模的干法再处理方法进行。解决方案：一种常见的阴极12和两种不同形状和布置的阳极（其中，设置在阴极的下方的第一阳极14和与阴极平行设置的第二阳极16）安装在第一电解控制部分18连接在阴极和第一阳极之间，第二电解控制部分20连接在阴极和第二阳极之间。阴极和每个阳极可以是一个或可以是多个片。然后，使用阴极和一个阳极的组合作为主电解，并且将阴极和另一个阳极的组合用作辅助电解质，在电解池中待处理的物体22进行电解处理。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004069351A Centrifugal extractor 有权
公开(公告)号：JP2004069351A
公开(公告)日：2004-03-04
申请号：JP2002225769
申请日：2002-08-02
申请人： Japan Nuclear Cycle Development Inst States Of Projects , 核燃料サイクル開発機構
发明人： OGINO HIDEKI , WASHITANI TADAHIRO
IPC分类号： G21C19/46 , B01D11/04 , B01D17/02 , B04B5/06 , B04B15/00 , C02F1/38 , G21C19/40 , G21F9/04
CPC分类号： B01D17/0217 , B01D11/048 , C02F1/38
摘要： PROBLEM TO BE SOLVED: To upgrade criticality safety and durability when a centrifugal extractor is increased in size/capacity.
SOLUTION: The centrifugal extractor has a structure in that a rotor 12 is rotatably supported in a housing 10, aqueous phase and organic phase are supplied to the circumference of the rotor to be mixed between the housing and the rotor, mixed phase is aspirated to the interior of the rotor to be separated into two phases by a centrifugal force field inside the rotor, and the aqueous phase and the organic phase separated are ejected to an aqueous phase collector 50 and an organic phase collector 44 respectively. A hollow part is provided at the rotor center, and a neutron absorber 60 is installed by using the hollow part. And a structure is preferred in that a lower part rotation support mechanism (sliding bearing 66 etc) is arranged and neutron-absorbing material is sealed inside the lower part rotation support mechanism.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2004198180A Centrifugal extractor with non-contact shaft supporting structure 有权
公开(公告)号：JP2004198180A
公开(公告)日：2004-07-15
申请号：JP2002365075
申请日：2002-12-17
申请人： Japan Nuclear Cycle Development Inst States Of Projects , 核燃料サイクル開発機構
发明人： OGINO HIDEKI , FUJISAKI KAZUHIKO , WASHITANI TADAHIRO
IPC分类号： G21C19/46 , B01D11/04 , B04B5/12 , B04B9/04 , B04B9/12 , F16C39/02
CPC分类号： B04B9/04 , B01D11/048 , B04B5/12 , B04B9/12 , F16C32/047 , F16C39/02
摘要： PROBLEM TO BE SOLVED: To provide a centrifugal extractor which makes it possible to obtain high reliability without causing problems of the corrosion and deterioration of parts, is free from maintenance and can operate for long hours even under the environment of a corrosive gas like nitric acid mist generated in a process for reprocessing a spent nuclear fuel or a liquid in the form of mist.
SOLUTION: A rotor 12 which is accommodated in a rotor housing 10 and whose main shaft 14 is supported is rotated and driven by a motor 16. The main shaft 14 is surrounded by a driving component housing 30, and has a thrust magnetic disc 36 at its upper end and radial magnetic cylinders 46 and 48 and a motor rotor section 54 on its circumference. Thrust shaft bearing electromagnets 38a and 38b, radial shaft bearing electromagnets 50 and 52 and a motor stator section 56 are incorporated into the driving component housing 30 and are covered with non-magnetic and corrosion-resistant protective plates 40 and 42 and a protective pipe 64, and the motor rotor section 54 is also covered with a protective can 58. Fluoropolymer sliding bearings 66 and 68 for touchdown are placed on the inner wall of the driving component housing 30 in the vicinity of the upper ends of the main shaft and the rotor.
COPYRIGHT: (C)2004,JPO&NCIPI

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