DEWATERING DEVICE
    1.
    发明公开
    DEWATERING DEVICE 审中-公开
    排水设备

    公开(公告)号:EP1137843A1

    公开(公告)日:2001-10-04

    申请号:EP99971876.0

    申请日:1999-11-04

    IPC分类号: D21C9/18 B01D33/06 B30B9/20

    摘要: Apparatus is disclosed for dewatering aqueous suspensions including a pair of rotatable rolls forming a nip therebetween, so that the aqueous suspension can pass downwardly through the nip and be dewatered by removing a filtrate from the suspension, and the dewatered suspension can pass downwardly from the nip, at least one of the rolls being liquid permeable, and at least one screen adjacent to the roll and disposed below the nip, the screen is separated from the roll by a predetermined distance and extends along its length, the predetermined distance being a sufficient distance so that a film of filtrate on the roll passes between the roll and upper end of the screen on one side of the screen and the dewatered suspension passes on the other side of the screen so that the filtrate is prevented from contacting the dewatered suspension below the nip.

    METHOD AND DEVICE FOR TREATING AN AQUEOUS WORKING MEDIUM WITH AT LEAST ONE TREATING FLUID
    2.
    发明公开
    METHOD AND DEVICE FOR TREATING AN AQUEOUS WORKING MEDIUM WITH AT LEAST ONE TREATING FLUID 失效
    方法和装置水介质中工作与至少一个处理液处理

    公开(公告)号:EP1009522A1

    公开(公告)日:2000-06-21

    申请号:EP98928745.3

    申请日:1998-06-03

    IPC分类号: B01F7/00 D21C9/10

    CPC分类号: B01F7/008 D21C9/10

    摘要: A method and device for treating for instance a paper pulp suspension with at least one treatment fluid has a treatment chamber, in which a rotor (1) rotates and carries a number of rigidly interconnected coaxial rotor rings (23) at its periphery, a number of stationary stator rings (25) being coaxially inserted between the rotor rings, so that at least two annular axial treatment slots (27) are formed between the rotor rings and the stator rings. An inlet member (19) for the working medium and an inlet member (21) for the treatment fluid are arranged on one side of said treatment slots and an outlet for the treated working medium on the other side, the working medium with treatment fluid being subjected to a shearing in the slots. The treatment slots are formed in such a way that their radial extensions increase with increasing distance to the rotational axis (A-A) of the rotor so that a substantially homogeneous shearing velocity is achieved in all of the annular treatment slots.