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1. 发明授权

US06976947B2 Centrifugal extractor of non-contact journaled construction 失效
标题翻译：非接触式记录式离心式离心机
公开(公告)号：US06976947B2
公开(公告)日：2005-12-20
申请号：US10699818
申请日：2003-11-04
申请人： Hideki Ogino , Kazuhiko Fujisaku , Tadahiro Washiya
发明人： Hideki Ogino , Kazuhiko Fujisaku , Tadahiro Washiya
IPC分类号： G21C19/46 , B01D11/04 , B04B5/12 , B04B9/04 , B04B9/12 , F16C39/02 , B04B5/06
CPC分类号： B04B9/04 , B01D11/048 , B04B5/12 , B04B9/12 , F16C32/047 , F16C39/02
摘要： A centrifugal extractor of non-contact journaled construction is provided in which, even under the environments of corrosive gase and mist-like liquid such as nitric acid mist generated in the reprocessing of a spent nuclear fuel, no problem in corrosion or deterioration of parts occurs and high reliability is obtained, and operation is enabled for a long period of time free from maintenance. A rotor 12 housed in a rotor housing 10 is journaled by a main shaft 14 and rotated and driven by a motor 16. The main shaft is surrounded by a drive-portion housing 30, and has a thrust magnetic disk 36 on the upper end and radial magnetic disks 46, 48 and a motor-rotor portion 54 in the circumference thereof. Thrust bearing electromagnets 38a, 38b, radial bearing electromagnets 50, 52 and a motor stator portion 56 are incorporated into the drive-portion housing, and covered by non-magnetic anticorrosive protective plates 40, 42, and a protective pipe 64, the motor-rotor portion being also covered by a protective can 58. Slide bearings 66, 68 for touch down made of fluorocarbon resin are disposed on the upper end of the main shaft and on the inner wall of the drive-portion housing in the vicinity of the upper end of the rotor.
摘要翻译：提供一种非接触式轴颈结构的离心萃取器，即使在废核燃料后处理中产生的腐蚀性气体和雾状液体如硝酸雾的环境下，也不会发生腐蚀或零件劣化的问题并且获得高可靠性，并且能够长时间地进行操作而没有维护。容纳在转子壳体10中的转子12由主轴14支承并由马达16旋转驱动。主轴被驱动部分壳体30包围，并且在上端具有推力磁盘36，在其周边具有径向磁盘46,48和电动机转子部分54。推力轴承电磁体38a，38b，径向轴承电磁体50,52和电动机定子部分56并入驱动部分壳体中，被非磁性防腐保护板40,42和保护管64覆盖，电动机转子部分也被保护罐58覆盖。用于由碳氟树脂制成的用于触摸的滑动轴承66,68设置在主轴的上端和驱动部分壳体的内壁上，在转子的上端附近。

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