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    • 4. 发明授权
    • Classification device
    • 分类装置
    • US08757387B2
    • 2014-06-24
    • US12629430
    • 2009-12-02
    • Nobuyasu MakinoMasakazu YashiroKazuo Kuratani
    • Nobuyasu MakinoMasakazu YashiroKazuo Kuratani
    • B07B7/00B07B7/04
    • B07B4/06B07B7/083B07B9/02G03G9/0817
    • A classification device for classifying particles by size including an upper impeller-type rotor, a first end of which is covered with a cover disc without penetration hole and a second end of which is covered with an upper cover disc with a penetration hole; and a lower impeller-type rotor, a first end of which is covered with a cover disc without penetration hole and a second end of which is covered with a lower cover disc with a penetration hole. The upper impeller-type rotor and the lower impeller-type rotor are provided so that axes thereof are coincident and the first ends face with each other forming a gap therebetween in an axial direction, and the diameters of the penetration holes of the upper cover disc and the lower cover disc are different.
    • 一种分级装置,用于按照尺寸对颗粒进行分级,包括上叶轮式转子,第一端用不具有穿透孔的盖盘覆盖,第二端覆盖有具有穿透孔的上盖盘; 以及下部叶轮型转子,其第一端覆盖有没有穿透孔的盖盘,并且其第二端覆盖有具有穿透孔的下盖盘。 上叶轮式转子和下叶轮型转子设置成使其轴线重合,并且第一端部彼此面对,在轴向方向上形成间隙,并且上盖板的贯通孔的直径 下盖盘不同。