METHOD FOR CONVERTING A NATURALLY-ASPIRATED FLOTATION CELL TO A FORCED-GAS FLOTATION CELL, AND APPARATUS THEREOF

    公开(公告)号:WO2019092620A1

    公开(公告)日:2019-05-16

    申请号:PCT/IB2018/058755

    申请日:2018-11-07

    Applicant: FLSMIDTH A/S

    Inventor: WALKER, Mathew

    Abstract: The disclosure relates to an adapter (200) for converting a naturally-aspirated flotation cell (10) to a forced-gas flotation cell without replacing the naturally-aspirated flotation cell reducer (21) with a specialized conversion reducer (103). The adapter (200) is designed to be located below the naturally-aspirated flotation cell reducer (21) and at a location along the drive shaft. The adapter (200) comprises an outer static casing (201) having a forced gas inlet (210); an inner rotating spanner (204) having at least one port (205) therein; sealing means (203, 224, 225, 226) provided between the static casing (201) and the spanner (204); and, a chamber (213) formed between the outer static casing (201) and the spanner (204). Related methods and apparatus incorporating the adapter (200) are further disclosed.

    VIBRATING CENTRIFUGE
    4.
    发明申请
    VIBRATING CENTRIFUGE 审中-公开
    振动中心

    公开(公告)号:WO2015162587A1

    公开(公告)日:2015-10-29

    申请号:PCT/IB2015/052981

    申请日:2015-04-23

    CPC classification number: B04B3/06 B04B7/02

    Abstract: A two degree of freedom vibrating centrifuge 10 used for separation of materials such as, for example, coal from slurry. The vibrating centrifuge 10 has horizontally aligned tuning leaf springs 50 and a vertically arranged support leaf spring 52. The tuning leaf springs 50 have a high stiffness that provides a damping effect to the system without the need for separate compression springs, or the like. The horizontal arrangement of the tuning leaf springs 50 reduces local bending loads.

    Abstract translation: 用于分离材料的两个自由度的振动离心机10,例如来自浆料的煤。 振动离心机10具有水平对准的调谐板簧50和垂直布置的支撑板簧52.调谐板簧50具有高刚度,其不需要单独的压缩弹簧等而对系统提供阻尼效果。 调谐板簧50的水平布置减少局部弯曲载荷。

    VALVE APPARATUS FOR FLOTATION CELLS
    5.
    发明申请
    VALVE APPARATUS FOR FLOTATION CELLS 审中-公开
    用于浮选细胞的阀装置

    公开(公告)号:WO2015175862A1

    公开(公告)日:2015-11-19

    申请号:PCT/US2015/030942

    申请日:2015-05-15

    CPC classification number: B03D1/1443 F16K27/07

    Abstract: Disclosed, is a retro-fittable valve apparatus for a flotation cell comprising: a valve assembly having a dart attached to a distal end of a linear-actuated valve rod; the valve assembly being provided on an upstream side of the flotation cell, wherein the valve assembly comprises a box which fluidly communicates with an upstream flotation cell. Also disclosed, is a method of flotation comprising: providing a valve assembly having a dart attached to a distal end of a linear-actuated valve rod; the valve assembly being provided on an upstream side of the flotation cell, wherein the valve assembly comprises a box which fluidly communicates with an upstream flotation cell; and linearly adjusting the linear-actuated valve rod to increase or decrease a flow rate of slurry or pulp between said flotation cell and said upstream flotation cell.

    Abstract translation: 公开了一种用于浮选槽的可逆适配阀装置,包括:阀组件,其具有附接到线性致动阀杆的远端的飞镖; 所述阀组件设置在所述浮选槽的上游侧,其中所述阀组件包括与上游浮选槽流体连通的箱体。 还公开了一种浮选方法,包括:提供具有附接到线性致动阀杆的远端的飞镖的阀组件; 所述阀组件设置在所述浮选槽的上游侧,其中所述阀组件包括与上游浮选槽流体连通的箱体; 并且线性调节线性致动阀杆以增加或减少所述浮选槽和所述上游浮选槽之间的浆料或纸浆的流速。

    VALVE APPARATUS FOR FLOTATION CELLS
    6.
    发明申请

    公开(公告)号:WO2020008443A2

    公开(公告)日:2020-01-09

    申请号:PCT/IB2019/055810

    申请日:2019-07-08

    Applicant: FLSMIDTH A/S

    Abstract: Disclosed, is a valve apparatus for use with flotation cells. The valve apparatus is characterized in that it comprises a nozzle tube (202) for attaching to the wall (110) adjacent the orifice (102). The nozzle tube (202) is provided between the orifice (102) and the dart (100) and configured such that while in use, the dart (100) does not come into direct contact with the orifice (102) provided to the wall (100). The nozzle tube (202) further comprises an inwardly-tapered inlet (204) which extends from a wider open end to a throat (206) of smaller diameter. By virtue of the shape of the upstream-facing surface (112) of the dart (100) and the inwardly-tapered inlet (204), a nozzle structure is formed as the dart (100) moves upstream or closer to the throat (206) of the nozzle tube (202). This nozzle structure is particularly adapted for reducing head losses.

    FLOTATION MACHINE APPARATUS AND METHOD OF USING THE SAME

    公开(公告)号:WO2019180682A1

    公开(公告)日:2019-09-26

    申请号:PCT/IB2019/052361

    申请日:2019-03-22

    Applicant: FLSMIDTH A/S

    Inventor: WALKER, Mathew

    Abstract: A flotation machine includes a wash water system that is connectable adjacent a tank to direct sprays of water into froth within a froth zone. Wash water panel assemblies of the system can be positioned adjacent the tank so that each of the wash water panel assemblies are moveable between an open position and a closed position. Each wash water panel assembly can include an outer panel body that at least partially defines a reservoir in which wash water is passable and a spray membrane positionable adjacent the outer panel body. The spray membrane can have a plurality of spray holes in fluid communication with the reservoir such that water is passable from the reservoir and through the spray membrane via the spray holes for spraying water into the froth in the froth zone.

    VALVE APPARATUS FOR FLOTATION CELLS
    8.
    发明申请

    公开(公告)号:WO2020008443A3

    公开(公告)日:2020-01-09

    申请号:PCT/IB2019/055810

    申请日:2019-07-08

    Applicant: FLSMIDTH A/S

    Abstract: Disclosed, is a valve apparatus for use with flotation cells. The valve apparatus is characterized in that it comprises a nozzle tube (202) for attaching to the wall (110) adjacent the orifice (102). The nozzle tube (202) is provided between the orifice (102) and the dart (100) and configured such that while in use, the dart (100) does not come into direct contact with the orifice (102) provided to the wall (100). The nozzle tube (202) further comprises an inwardly-tapered inlet (204) which extends from a wider open end to a throat (206) of smaller diameter. By virtue of the shape of the upstream-facing surface (112) of the dart (100) and the inwardly-tapered inlet (204), a nozzle structure is formed as the dart (100) moves upstream or closer to the throat (206) of the nozzle tube (202). This nozzle structure is particularly adapted for reducing head losses.

    CENTRIFUGE SEALS AND SEALING ARRANGEMENTS AND CENTRIFUGES CONTAINING THE SAME
    9.
    发明申请
    CENTRIFUGE SEALS AND SEALING ARRANGEMENTS AND CENTRIFUGES CONTAINING THE SAME 审中-公开
    离心密封和密封装置和包含其的密封

    公开(公告)号:WO2016046704A1

    公开(公告)日:2016-03-31

    申请号:PCT/IB2015/057162

    申请日:2015-09-17

    CPC classification number: B04B7/00 B04B3/06 F16J15/3216

    Abstract: A seal for a centrifuge for preventing material from leaking out of an effluent portion into a drive portion where the seal is disposed between a basket carrier and a drive portion, and the basket carrier is disposed between the effluent portion and the drive portion. The seal can also be disposed on a stiffener, the stiffener disposed between the basket carrier and the drive portion. A sealing arrangement for a centrifuge including a contact seal and a labyrinth disc, for preventing liquid from leaking out of an effluent portion into a product discharge outlet and for preventing material from entering into the effluent portion through the product discharge outlet. Also provided is a centrifuge incorporating the seal and / or the sealing arrangement.

    Abstract translation: 一种离心机的密封件,用于防止材料从流出物部分泄漏到密封件设置在筐架和驱动部分之间的驱动部分中,并且筐架被布置在流出物部分和驱动部分之间。 密封件也可以设置在加强件上,加强件设置在篮托架和驱动部分之间。 一种用于离心机的密封装置,其包括接触密封件和迷宫式盘片,用于防止液体从流出物部分泄漏到产品排出口中并防止材料通过产品排出口进入流出物部分。 还提供了包括密封件和/或密封装置的离心机。

    DISTRIBUTOR FOR A SCROLL SCREEN CENTRIFUGAL SEPARATOR
    10.
    发明申请
    DISTRIBUTOR FOR A SCROLL SCREEN CENTRIFUGAL SEPARATOR 审中-公开
    滚动筛网离心机分配器

    公开(公告)号:WO2015092715A1

    公开(公告)日:2015-06-25

    申请号:PCT/IB2014/067033

    申请日:2014-12-17

    CPC classification number: B04B11/06 B04B3/00 B04B3/04 B04B2001/2033

    Abstract: A scroll screen centrifugal separator includes a distributor that is configured to receive slurry received from a feed conduit. The distributor is configured to deflect the received slurry to a screen of the scroll screen centrifugal separator. In some embodiments, the distributor may include a distributor that has a flat surface encircled by a lip or having one or more lips positioned on the flat surface, an inclined surface, or a declined surface that faces the mouth of the feed conduit. In other embodiments, the distributor may include a plurality of dam members for defining passageways through which slurry is passable through the distributor prior to being ejected to a screen of the separator. In other embodiments, the distributor may include a distributor plate that has a plurality of radial arms attached thereto that are configured to direct slurry to the basket with a rotational velocity.

    Abstract translation: 涡旋式筛离离心分离器包括配置成接收从进料导管接收的浆料的分配器。 分配器构造成将接收的浆料偏转到涡旋筛离心分离器的筛网。 在一些实施例中,分配器可以包括分布器,其具有由唇部包围的平坦表面或者具有位于平坦表面上的一个或多个唇部,倾斜表面或面向进料导管口的倾斜表面。 在其他实施例中,分配器可以包括多个用于限定通道的阻挡构件,浆料在被排出到分离器的筛网之前可通过分配器通过。 在其他实施例中,分配器可以包括分配器板,其具有附接到其上的多个径向臂,其被构造成以浆液的速度将浆料引导到篮子。

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