Filtration apparatus with means for preventing peeling off of a pre-coat
layer
    14.
    发明授权
    Filtration apparatus with means for preventing peeling off of a pre-coat layer 失效
    具有防止预涂层剥离的装置的过滤装置

    公开(公告)号:US4786408A

    公开(公告)日:1988-11-22

    申请号:US13447

    申请日:1987-02-11

    Abstract: A filtration apparatus having one or more upright tubular filter elements having a surface coated with a pre-coat layer of a filter aid through which a liquid is filtered. Different from conventional apparatuses, the filter element of the present invention is provided with a gas exhaust tube or liquid drain tube connected to the upper or lower part of the filter element, respectively. By virtue of this means, the liquid used for forming the pre-coat layer as the suspension medium can be completely discharged out of the apparatus prior to introduction of the liquid to be filtered so that the liquid in the apparatus can be switched from the pre-coat forming liquid to the filtered liquid without producing a mixture thereof, and without causing defects in the pre-coat layer.

    Abstract translation: 一种具有一个或多个直立管状过滤元件的过滤装置,其具有涂覆有助滤剂的预涂层的表面,通过该过滤器过滤液体。 本发明的过滤元件与传统装置不同之处在于分别连接到过滤元件的上部或下部的排气管或排液管。 通过这种方式,用于形成作为悬浮介质的预涂层的液体可以在引入待过滤的液体之前被完全排出装置,使得装置中的液体可以从预先的 在不产生其混合物的情况下将涂层形成液体加入到过滤液中,并且不会在预涂层中引起缺陷。

    A filtration apparatus
    18.
    发明公开
    A filtration apparatus 失效
    过滤装置

    公开(公告)号:EP0245585A2

    公开(公告)日:1987-11-19

    申请号:EP87101791.9

    申请日:1987-02-10

    Abstract: The filtration apparatus of the invention is of the type having one or more of upright tubular filter elements with the surface coated with a pre-coat layer of a filter aid through which a liquid is filtered. Different from conventional apparatuses, the filter element in the inventive apparatus is provided with a gas exhaust tube or liquid drain tube connected to the upper or lower part of the element. By virtue of this means, the liquid used for forming the pre-coat layer as the suspension medium can be completely discharged out of the apparatus prior to intro­duction of the liquid to be filtered so that the liquid in the apparatus can be switched from the pre-coat forming liquid to the filtered liquid without producing a mixture thereof causing no defects in the pre-coat layer.

    Abstract translation: 本发明的过滤装置是具有一个或多个直立管状过滤元件的类型,其表面涂覆有过滤助剂的预涂层,液体通过该助滤层过滤。 与常规装置不同,本发明装置中的过滤元件设有连接到元件上部或下部的排气管或排液管。 借助于这种方式,用于形成作为悬浮介质的预涂层的液体可以在引入待过滤的液体之前被完全排出设备之外,使得设备中的液体可以从预过滤器 形成液体而不产生其混合物,从而不会在预涂层中产生缺陷。

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