| 摘要 |
PURPOSE:To certainly classify crystallized particles, by providing a dispersing plate below the throttle pipe provided in a classifying tube. CONSTITUTION:A liquid and crystallized particles naturally falling through a classifying tube 8 from a crystallizing vessel 1 are gathered to the center of said tube 8 by a throttle pipe 14. In this case, the crystallized particles falling along the inner periphery of the throttle pipe 14 are gathered to the center by a liquid stream flowing as shown by the arrow A17 and fallen from the outlet 14a of the throttle pipe 14 through a vortex stream preventing plate 19 to be impinged to a dispersing plate 16 where uniformly dispersed. In addition, fine particles among the crystallized particles generated between the inlet of the throttle pipe 14 and the dispersing plate 16 are carried by the liquid stream rising as shown by the arrow A13 to be again returned into the crystallizing vessel 1 while the crystallized particles with a large particle size falling against the outflow of the liquid are guided to a centrifugal separator through an arranged pipe 12 to be separated as a crystal. As a result, the crystallized particles can be certainly classified.
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