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    CLEANING BASKET
    3.
    发明公开
    CLEANING BASKET 审中-实审

    公开(公告)号：EP4382218A1

    公开(公告)日：2024-06-12

    申请号：EP22851012.9

    申请日：2022-07-14

    申请人： Tokuyama Corporation

    发明人： ICHITSUBO, Koki

    IPC分类号： B08B3/04 ,  B08B13/00 ,  C01B33/02

    CPC分类号： B08B3/04 ,  B08B13/00 ,  C01B33/02

    摘要： In order to reduce an amount of a cleaning liquid remaining in a cleaning basket and to improve efficiency of drying polycrystalline silicon accommodated in the cleaning basket, a cleaning basket (1) is used for at least one of cleaning and drying of polycrystalline silicon in a state in which the polycrystalline silicon is accommodated and includes: a bottom plate (2) provided with a plurality of through holes formed therein; oblique plates (3) each of which has an inner surface (33) that makes, with an upper surface (23) of the bottom plate (2), an angle (θ1) of not less than 10° and not more than 80°, the oblique plates (3) each being connected to the bottom plate (2) and inclining in an upward and outward direction: and respective side plates (4) which are connected to the oblique plates (3) and which extend in an upward direction. (Fig. 3)

    METHOD AND DEVICE FOR MIXING GYPSUM GRANULES DERIVED FROM WASTE GYPSUM BOARD AND GYPSUM SLURRY
    4.
    发明公开
    METHOD AND DEVICE FOR MIXING GYPSUM GRANULES DERIVED FROM WASTE GYPSUM BOARD AND GYPSUM SLURRY 审中-实审

    公开(公告)号：EP4357011A1

    公开(公告)日：2024-04-24

    申请号：EP21946116.7

    申请日：2021-10-20

    申请人： Tokuyama Corporation

    发明人： MATSUO, Kentarou ,  HIRANAKA, Shingo

    IPC分类号： B01F23/50 ,  B01F25/40 ,  B28C1/02 ,  B28C5/06 ,  C01F11/46

    CPC分类号： B28C1/02 ,  B28C5/06 ,  B01F23/50 ,  B01F25/40 ,  C01F11/46 ,  Y02W30/91

    摘要： Hemihydrate and/or anhydrous Type III gypsum granules derived from wasted gypsum boards are fed into a flow path of an aqueous gypsum slurry containing dihydrate gypsum, are mixed with the gypsum slurry, and are fed into a deposition tank of dihydrate gypsum. The gypsum slurry is fed from an inlet of the flow path, and the hemihydrate and/or anhydrous type III gypsum granules derived from wasted gypsum boards are fed into the gypsum slurry from above. The gypsum slurry after mixing is made to flow to an outlet of the flow path while the upper surface of the gypsum slurry is always exposed to air. The gypsum slurry is fed into a pipe by free fall. The gypsum slurry is made to impinge on the far side of the pipe as viewed from the outlet and fall or to fall down the center portion of the pipe. The generation of gypsum scale is suppressed in the mixing device for mixing gypsum granules derived from wasted gypsum boards with gypsum slurry.