| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-sliding agitation tank using a magnetic bearing as the bearing of an agitator for the non-sliding form of the bearing to eliminate the occurrence of foreign matters on a bearing part. SOLUTION: A receiving shaft 2a connected to the upper end of an agitation shaft 2b passing through the upper face wall of the tank 1 and extending downward therefrom is rotatably supported on the upper wall of the tank 1 via the bearing part. The bearing part includes a radial magnetic bearing 30 and a thrust magnetic bearing 41 formed integrally with annular and cylindrical permanent magnets 31, 32, 41a, 41b, 42a, 42b. These permanent magnets have fixed magnetic properties, magnetizing conditions and configurations to maintain non-contact with one another against horizontal reaction on a rotary vane. COPYRIGHT: (C)2009,JPO&INPIT
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