Air contactor with foam separation vessel system
    82.
    发明授权
    Air contactor with foam separation vessel system 失效
    空气接触器与泡沫分离容器系统

    公开(公告)号:US5662790A

    公开(公告)日:1997-09-02

    申请号:US539242

    申请日:1995-10-04

    Abstract: A deinking system for use with recycled paper pulp includes a number of gas sparged hydrocyclones mounted around the outer periphery of a foam separation vessel, with the slurry outlet from each hydrocyclone introducing slurry into the vessel below the level of liquid in the vessel, and above the accepts outlet from the bottom of the vessel. An annular trough is provided adjacent the top and outer periphery of the vessel, and has a bottom sloping to one or more drain outlets. The hydrocyclone discharge conduits into the vessel are tangential to cause bubble-releasing swirling of the slurry in the vessel. The cyclone preferably is pedestal-less, and has a single gas inlet, and a deflector within the annular air jacket of the hydrocyclone. At least one substantially conical substantially uniform back pressure generator may be disposed in the hydrocyclone slurry outlet, a foam conveyance and breaking device may be associated with the drain outlet from the trough, and a foam and rejects handling tank connected to the foam conveyance and breaking device and including a substantially spiral downwardly extending feed ramp may also be provided.

    Abstract translation: 用于再生纸浆的脱墨系统包括安装在泡沫分离容器的外周周围的多个气体喷射水力旋流器,其中每个水力旋流器的浆料出口将浆料引入容器内的容器中的液体以下,以上 从容器底部接受出口。 在容器的顶部和外部周边附近提供环形槽,并且具有向一个或多个排出口倾斜的底部。 水力旋流器排放管道进入容器是切向的,导致容器中浆液的气泡释放漩涡。 旋风分离器优选是无底座的,并且具有单个气体入口和在水力旋流器的环形空气套内的偏转器。 至少一个基本上圆锥形的基本上均匀的背压发生器可以设置在水力旋流器浆料出口中,泡沫输送和断开装置可以与槽的排水出口相关联,并且泡沫和废物处理罐连接到泡沫输送和断裂 并且还可以提供包括大致螺旋形的向下延伸的进料斜坡。

    Method and apparatus for separation by flotation
    83.
    发明授权
    Method and apparatus for separation by flotation 失效
    浮选分离方法及装置

    公开(公告)号:US5660718A

    公开(公告)日:1997-08-26

    申请号:US495649

    申请日:1995-09-13

    Abstract: A suitably conditioned slurry feed is introduced to a trough from which it is distributed into a slurry layer-flow forming chamber provided with a discharge weir which discharges an evenly spread layer of slurry onto an inclined plate feeding into a mixing passage and then into a vessel. Recirculated slurry from the vessel is also fed into the mixing passage via a recycle gate which forms it into a layer of slurry. An array of clean liquid jets accelerates thin gas envelopes and impinges between layers of slurry and causes intensive mixing of all streams in the mixing passage. A high shear rate produces high intensity turbulence and shears gas into very small bubbles. A multiphase mixture flow is discharged from the mixing passage into the vessel, where it flows past one or more longitudinal stabilizing baffles. Gas bubbles loaded with hydrophobic particles disengage from the stream, rise toward the liquid surface and are diverted by bubble-diverting guides toward a froth discharge end of the vessel. A layer of froth travels toward a froth weir where it is discharged. Residual slurry leaves a discharge launder via a weir to a following flotation cell or process stage.

    Abstract translation: PCT No.PCT / AU94 / 00026 Sec。 371日期1995年9月13日 102(e)1995年9月13日PCT PCT 1994年1月20日PCT公布。 公开号WO94 / 17920 PCT 日期1994年8月18日将适当调节的浆料进料引入到槽中,从槽中分配到具有排出堰的浆料层流动形成室,浆料层流动形成室将均匀铺展的浆料浆排放到倾斜板上, 然后进入船只。 来自容器的再循环浆料也经由循环浇口进料到混合通道中,循环浇口形成浆料层。 一系列清洁的液体射流加速薄气体包络并撞击浆料层之间,并引起混合通道中所有流的强烈混合。 高剪切速率产生高强度湍流并将气体剪切成非常小的气泡。 多相混合物流从混合通道排放到容器中,在那里它流过一个或多个纵向稳定挡板。 负载有疏水性颗粒的气泡与物流分离,朝向液体表面上升,并且通过气泡转向引导件朝向容器的泡沫排出端转向。 一层泡沫向着排出的泡沫堰行进。 残留的浆料通过堰将排放液从下一个浮选池或处理阶段中排出。

    Method and apparatus for improving flotation separation
    85.
    发明授权
    Method and apparatus for improving flotation separation 失效
    改善浮选分离的方法和装置

    公开(公告)号:US5240621A

    公开(公告)日:1993-08-31

    申请号:US737247

    申请日:1991-07-29

    Abstract: A method of separating an aqueous solids containing suspension includes (a) subjecting a first solids containing suspension to centrifugal forces so as to separate the suspension into a first gas containing flow, a second gas-free flow and a third flow; (b) feeding the third flow into a flotation cell having a bottom; (c) introducing air at the bottom of the flotation cell into the third flow for separating from the third flow a fourth partial flow; (d) withdrawing the air containing third flow after the separation of the fourth partial flow from the flotation cell; and (e) subjecting the third flow to the centrifugal forces of step (a). An apparatus for the separation of gas and lightweight material from a gas and lightweight material containing aqueous solids suspension is also described and includes a centrifugal pump for separating the gas and lightweight material from the solids suspension with a suspension inlet and an outlet for the lightweight material; a flotation cell for separating the lightweight material from a solids suspension; and a circulation loop connecting the outlet of the centrifugal pump, the flotation cell and the suspension inlet of the pump.

    Abstract translation: 分离含水固体的悬浮液的方法包括(a)使第一固体含悬浮液经受离心力,以将悬浮液分离成第一气体包含流动,第二无气流和第三流; (b)将第三流送入具有底部的浮选槽; (c)将浮选槽底部的空气引入第三流中,以从第三流中分离第四部分流; (d)在将第四部分流从浮选槽分离出之后,抽出含有第三流的空气; 和(e)使第三流经受步骤(a)的离心力。 还描述了一种用于从气体和轻质材料中分离气体和轻质材料的装置,其含有含水固体悬浮液,并且包括用于将气体和轻质材料与固体悬浮液分离的离心泵,其具有用于轻质材料的悬浮入口和出口 ; 用于将轻质材料与固体悬浮液分离的浮选槽; 以及连接离心泵的出口,浮选槽和泵的悬浮入口的循环回路。

    Method for deinking recycled fiber by applying direct current electric
field
    86.
    发明授权
    Method for deinking recycled fiber by applying direct current electric field 失效
    通过施加直流电场对循环纤维进行脱墨的方法

    公开(公告)号:US5238538A

    公开(公告)日:1993-08-24

    申请号:US797689

    申请日:1991-11-25

    CPC classification number: D21B1/327 Y02W30/646

    Abstract: A method for the deinking of recycled fibers, in which the macerated fibers are slurried with water; introduced to a deinking cell which has a central anode and a perimetal cathode; subjected to a direct current electric field applied between the anode and the cathode, causing the ink to be attracted away from the fibers and to electrocoagulate the ink then floating to the surface of the slurry with the aid of gas bubbles generated during the application of the electric field; and washed to recover a cleaner, brighter pulp of recycled fibers.

    Abstract translation: 用于脱水的再生纤维的脱墨方法,其中浸渍的纤维用水浆化; 引入具有中心阳极和周边阴极的脱墨电池; 经受在阳极和阴极之间施加的直流电场,导致墨被吸引离开纤维,并且电凝凝墨然后借助于在施加期间产生的气泡而浮动到浆料的表面 电场; 并洗涤以回收更清洁,更亮的再生纤维纸浆。

    Flotation-deinking-device
    87.
    发明授权
    Flotation-deinking-device 失效
    浮选脱墨装置

    公开(公告)号:US5236090A

    公开(公告)日:1993-08-17

    申请号:US931905

    申请日:1992-08-18

    Abstract: The invention relates to a flotation-deinking-device comprising a flotation vessel and at least one inlet for introducing the suspension into the flotation vessel, the inlet being a staged diffusor (12) in which in a region of the stage transition (26) an air inlet opening (20) is arranged. A turbulence generator (28) without an air supply is arranged upstream of the stage transition (26) as seen in the direction of flow.

    Abstract translation: 本发明涉及一种浮选脱墨装置,其包括浮选容器和用于将悬浮液引入浮选容器的至少一个入口,所述入口是分级扩散器(12),其中在阶段转变(26)的区域中 进气口(20)布置。 没有空气供应的湍流发生器(28)被布置在阶跃转(26)的上游,如从流动方向看。

    Froth flotation apparatus and method
    88.
    发明授权
    Froth flotation apparatus and method 失效
    泡沫浮选装置及方法

    公开(公告)号:US5028315A

    公开(公告)日:1991-07-02

    申请号:US448439

    申请日:1989-12-11

    Abstract: In froth flotation apparatus for separating solid particle impurities from a liquid suspension stock in a flotation cell, provision is made for aerating the stock flowing through the inlet conduit leading to the cell by positioning a drum-shaped rotor having an irregular outer surface in the conduit on an axis extending transversely of the conduit, directing a supply of air against the rotor surface on the upstream side of its rotational axis, and causing the rotor to rotate at a linear speed of its outer surface which is substantially higher than the linear flow rate of the stock in the conduit so that the rotor surface breaks up the air impinging thereon into bubbles and distributes those bubbles in the stock flowing therepast to create foam within the cell.

    Abstract translation: 在用于从浮选槽中的液体悬浮液原料中分离固体颗粒杂质的泡沫浮选装置中,提供通过将导管通过导入导管的原料定位在管道中的不规则外表面的鼓形转子 在横向于导管延伸的轴线上,将空气供应引导到其旋转轴线的上游侧上的转子表面上,并使转子以其外表面的线速度旋转,该速度基本上高于线性流速 的管道中的原料,使得转子表面将其上撞击的空气分解成气泡,并将那些气泡分布在流过其中的原料中,以在电池内产生泡沫。

    Process for removing ink from wastepaper
    90.
    发明授权
    Process for removing ink from wastepaper 失效
    从废纸上清除墨水的方法

    公开(公告)号:US4749473A

    公开(公告)日:1988-06-07

    申请号:US68716

    申请日:1987-07-01

    Abstract: Wastepaper is treated by a ink-removing process in which an aqueous wastepaper pulp slurry is introduced into a treating vessel, air is blown into the wastepaper pulp slurry preferably through a number of air-blowing orifices formed on a peripheral surface of at least one horizontal cylinder located in the bottom portion of the vessel to absorb ink particles floating in the wastepaper pulp slurry by air bubbles ejected from the orifices and rising toward the wastepaper pulp slurry surface. The resultant ink-absorbed froth is then removed. In this process, air is blown in an amount satisfying the relationship (I)G/L.gtoreq.5.0 (I)wherein L is the volume (m.sup.3) of the wastepaper pulp slurry in the treating vessel and G is the total volume (Nm.sup.3) of the air bubbles blown into the vessel, to promote the contact of the air bubbles with the ink particles in the wastepaper pulp slurry.

    Abstract translation: 废纸通过除油方法处理,其中将水性废纸浆液引入处理容器中,优选通过形成在至少一个水平面的外周表面上的多个空气喷吹孔将空气吹入废纸浆浆中 位于容器底部的气缸,用于吸收从孔中喷出的气泡并向废纸浆浆表面上升的漂浮在废纸浆浆中的油墨颗粒。 然后除去所得的吸墨泡沫。 在该方法中,以满足式(I)G / L> / = 5.0(I)的关系(I)的方式吹送空气,其中L是处理容器中废纸浆浆的体积(m3),G是总体积( 吹入容器中的气泡的Nm3),以促进气泡与废纸纸浆中的油墨颗粒的接触。

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