Sludge dewatering filter press
    2.
    发明授权
    Sludge dewatering filter press 失效
    污泥脱水压滤机

    公开(公告)号:US4963259A

    公开(公告)日:1990-10-16

    申请号:US338882

    申请日:1989-04-17

    IPC分类号: B01D33/04 B30B9/24 C13B15/02

    摘要: A mechanical sludge dewatering system including a plurality of first rollers, one or more second rollers and a liquid-permeable, endless belt passing between the first and second rollers from an inlet to an outlet end. At least some of the rollers of the first set are tapered from their ends to a smaller diameter at the center, the amount of taper decreasing from the roller at the inlet end to that at the outlet end, the opposing one or more second rollers being of constant diameter. The sludge carried on the belt passes through the cavities defined by the tapered first rollers and the cylindrical second roller(s), which decrease in cross section from the inlet to the outlet end, thereby squeezing water from the sludge. The first rollers each have grooves around their periphery adjacent each end, and the belt carries a protruding strip along each side, the belt being laterally constrained by the strips riding in the grooves. In a first embodiment, the second roller comprises a single drum; in a second embodiment a second, endless, liquid-impermeable belt is superposed with the liquid-permeable belt; in a third embodiment the single drum is replaced by a plurality of cylindrical rollers arranged in opposed relation with corresponding ones of the first rollers.

    摘要翻译: 一种机械污泥脱水系统,包括多个第一辊,一个或多个第二辊和透液性环形带,其从入口到出口端在第一和第二辊之间通过。 第一组的至少一些辊从它们的端部到中心处的较小直径逐渐变细,锥度从入口端处的辊子到出口端处的量减小,相对的一个或多个第二辊子是 恒定直径。 携带在带上的污泥通过由锥形第一辊和圆柱形第二辊限定的空腔,其从入口到出口端的横截面减小,从而从污泥中挤出水。 第一辊每个在其两端各自具有围绕其周边的凹槽,并且带沿着每一侧承载突出的条带,该带由沿着槽的条带横向约束。 在第一实施例中,第二辊包括单个滚筒; 在第二实施例中,第二无端液体不可渗透带与透液性带重叠; 在第三实施例中,单个滚筒由与相应的第一滚筒相对设置的多个圆柱滚子代替。

    Edge seal for liquid filtration apparatus
    3.
    发明授权
    Edge seal for liquid filtration apparatus 失效
    液体过滤装置的边缘密封

    公开(公告)号:US4880538A

    公开(公告)日:1989-11-14

    申请号:US231963

    申请日:1988-08-15

    IPC分类号: B01D29/09

    CPC分类号: B01D29/096 B01D2201/34

    摘要: A labyrinth seal incorporated in liquid filtration apparatus to prevent migration of unfiltered liquid carrying solid contaminants and air which may be entrapped in such liquid past the lateral edges of a filter media carried on an endless conveyor into an underlying chamber for receiving filtered liquid. The seal includes a pair of low friction strips and an underlying seal support fixedly attached in superposed relation along both interior sides of the tank and extending between positions where the conveyor enters and exits the unfiltered liquid. The seal further includes one layer in a first embodiment, and two, superposed layers in a second embodiment, of fluid-impervious material affixed to each lateral edge of the conveyor chain or belt about the entire periphery thereof, and movable therewith. The outermost lateral edge portions of the media are engaged and move slidingly between opposing surfaces of the stationary strips, as are edge portions of the upper movable layer in the second embodiment, and edge portions of the single (or lower) movable layer are engaged between the lower strip and upper surface of the seal support.

    摘要翻译: 混合在液体过滤装置中的迷宫式密封件,以防止携带固体污染物和空气的未过滤液体迁移,这些液体可能被夹带在这种液体中,通过承载在环形输送机上的过滤介质的侧边缘进入下面的腔室,以接收过滤液体。 密封件包括一对低摩擦条和下面的密封件支撑件,其沿着箱的两个内侧固定地重叠地连接,并且在输送机进入和离开未过滤液体的位置之间延伸。 密封件还包括第一实施例中的一个层,以及在第二实施例中的两层叠层,其不透液材料固定在输送链或带的每个侧边缘的周围,并且可与其移动。 介质的最外侧边缘部分在第二实施例中被接合并在固定条的相对表面之间滑动移动,如上可移动层的边缘部分,并且单个(或下)可移动层的边缘部分接合在 密封支撑件的下带和上表面。