MEMBRANE SPARGERS FOR GRAVITY SEPARATORS AND FLOTATION MACHINES

    公开(公告)号:WO2022249144A1

    公开(公告)日:2022-12-01

    申请号:PCT/IB2022/055014

    申请日:2022-05-27

    Applicant: FLSMIDTH A/S

    Abstract: A separator device (100) includes a separation chamber (107) defined at its lower end by a fluidization fluid panel (111). The separation chamber (107) receives incoming slurry (113) via a slurry inlet (102). The separator device may be characterised in that means (122) for supplying pre-sheared aerated fluidization fluid is provided above the fluidization fluid panel (111). The means (122) for supplying pre-sheared aerated fluidization fluid includes a novel sparger (119) comprising a flexible perforated membrane which is configured to supplementally shear the pre-sheared aerated fluidization fluid and uniformly distribute microbubbles (129) throughout the separation chamber (107).

    FEED DILUTION APPARATUS FOR THICKENER/CLARIFIERS

    公开(公告)号:WO2022157748A1

    公开(公告)日:2022-07-28

    申请号:PCT/IB2022/050652

    申请日:2022-01-25

    Applicant: FLSMIDTH A/S

    Abstract: A feedwell assembly (1) having a feedwell (3) and feed dilution apparatus (27) is characterised in that the feed dilution apparatus (27) includes a centrifugal impeller (16) arranged within a pump housing (9). The pump housing is arranged below a weir box (12) having an upper opening and a spill lip (12b). The spill lip (12b) is arranged at an upper periphery of the weir box (12). The spill lip (12b) is configured to be arranged below an air-liquid interface (20) during operation such that there is a depth of submergence (26) between the spill lip (12b) and the air-liquid interface (20).

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