G-factor compensated hydraulic flocculation system
    1.
    发明授权
    G-factor compensated hydraulic flocculation system 失效
    G因子补偿液压絮凝系统

    公开(公告)号:US4179368A

    公开(公告)日:1979-12-18

    申请号:US901255

    申请日:1978-04-28

    CPC classification number: B01D21/01 B01D21/24

    Abstract: A hydraulic flocculation system having a first stage tank receiving a liquid through an elbow conduit having an upwardly directed outlet. Liquid from the first stage tank flows into a pair of second stage tanks through respective elbow conduits also having upwardly directed outlets. Liquid is discharged from each of the second stage tanks into a third stage tank through respective elbow conduits having an upwardly directed outlet. Each outlet of the conduits is covered by a plate which slidably receives a plurality of upstanding rods secured to the conduits so that the plate can move toward and away from the outlet as the flow through the conduit varies. The plate acts as a constant pressure-loss valve to produce a head loss which is proportional to the weight of the plate in order to maintain the G-factor of the system relatively constant as the flow rate of liquid through each of the conduits varies. The G-factor of each stage of the system can thus be adjusted as desired by varying the weight of each plate. Other constant pressure-loss valves may be employed in other embodiments including a plate pivotally connected along one edge of the conduit and resiliently biased against the outlet of the conduit.

    Abstract translation: 液压絮凝系统,其具有通过具有向上指向的出口的弯头导管接收液体的第一级容器。 来自第一级罐的液体通过也具有向上指向的出口的相应的弯头导管流入一对第二级罐。 液体通过具有向上指向的出口的相应弯头管道从每个第二级罐排出到第三级罐中。 导管的每个出口被可滑动地容纳固定到导管的多个直立杆的板覆盖,使得当通过导管的流动变化时,板可以朝向和离开出口移动。 该板用作恒定的压力损失阀,以产生与板的重量成比例的压头损失,以便通过每个导管的液体的流速变化来保持系统的G因子相对恒定。 因此,通过改变每个板的重量,可以根据需要调节系统每个阶段的G因子。 在其他实施例中可以采用其它恒定的压力损失阀,包括沿导管的一个边缘枢转地连接的板,并且弹性偏压地抵靠导管的出口。

    Apparatus for and method of filtering solid particles from a
particulate-bearing liquid
    4.
    发明授权
    Apparatus for and method of filtering solid particles from a particulate-bearing liquid 失效
    用于从含颗粒的液体中过滤固体颗粒的装置和方法

    公开(公告)号:US3977970A

    公开(公告)日:1976-08-31

    申请号:US536974

    申请日:1974-12-23

    Abstract: Waste water containing particulate matter is saturated with air or other gas by a dynamic mixer and ejected into a gravity filter system at a point above the filter media but below the water surface level. Upon entering the filter tank, the dissolved gas is released, forming small bubbles on filterable particles to float these particles to the surface for removal. The system further includes a back pressure valve at the sewage inlet port which, if obstructed, is automatically flushed. During the backwash cycle, the water level above the filter bed may be lowered to the level of a wash-through zone, and filtered water then pumped upward through the filter media, thereby carrying particles from the filter media out through the wash-through zone.

    Abstract translation: 含有颗粒物质的废水通过动态混合器被空气或其他气体饱和,并在过滤介质上方但在水面以下的一点喷射到重力过滤系统中。 在进入过滤罐时,溶解的气体被释放,在可过滤颗粒上形成小气泡,以将这些颗粒漂浮到表面以除去。 该系统还包括在污水入口处的背压阀,如果被阻塞,则自动冲洗。 在回洗循环期间,过滤床上方的水位可以降低到洗涤区的水平,然后将过滤的水向上泵送通过过滤介质,从而将来自过滤介质的颗粒通过洗涤区域 。

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