Sludge dewatering process using multiple layer plate
    12.
    发明授权
    Sludge dewatering process using multiple layer plate 失效
    污泥脱水工艺采用多层板

    公开(公告)号:US4632764A

    公开(公告)日:1986-12-30

    申请号:US629722

    申请日:1984-07-11

    Inventor: Morris M. Riise

    Abstract: A system for rapidly dewatering sludge in large quantities makes use of a filter plate that is capable of supporting heavy mechanized removal equipment without damage to the filter plate. The filter plate is monolithic and includes granular filter material that is rigidified and bonded together. In the disclosed process, sludge is pretreated with a polymer coagulant that breaks up solids and flocculates the sludge particles. The flocculated sludge is then spread on a bed of filter plates. As the bed is being filled, the large coagulated sludge particles settle and water is drawn off by gravity. A vacuum is then applied to the bed and the sludge is rapidly dewatered. Upon completion of dewatering, front end loading equipment may be used to remove the dried sludge cake from the bed.

    Abstract translation: 用于大量快速脱水污泥的系统使用能够支撑重型机械化去除设备而不损坏过滤板的过滤板。 过滤板是整体的,并且包括刚性化并结合在一起的颗粒状过滤材料。 在所公开的方法中,用聚合物凝结剂预处理污泥,其分解固体并使污泥颗粒絮凝。 然后将絮凝的污泥铺在滤板上。 当床被填充时,大的凝结的污泥颗粒沉降,水被重力排出。 然后将真空施加到床上,并且污泥快速脱水。 脱水完成后,可以使用前端装载设备从床上除去干燥的污泥饼。

    Method for naturally drying mineral pulps
    13.
    发明授权
    Method for naturally drying mineral pulps 失效
    自然干燥矿浆的方法

    公开(公告)号:US4579664A

    公开(公告)日:1986-04-01

    申请号:US472811

    申请日:1983-03-07

    CPC classification number: B01D24/205 B01D37/03 B01D2201/10

    Abstract: A method of spreading a pulp for the purpose of drying it naturally, the pulp having a solid fraction which has a d.sub.80 of less than 100 microns. This method comprises the following steps:(a) adjusting the level of solids of the pulp to between 2 and 25%;(b) adding a flocculating agent to the pulp and mixing it with same, the amount of said flocculating agent being between two thirds and 98% of the optimum required for the flocculation of said pulp; and(c) spreading the mixture of pulp and flocculating agent, in the open air, in a bed the sides of which are permeable, and the bottom of which has a slope of less than 5 meters per 1000 meters, said spreading taking place 1 to 20 minutes after the adding and mixing of the flocculating agent.

    Abstract translation: 用于自然干燥纸浆的方法,纸浆具有d80小于100微米的固体部分。 该方法包括以下步骤:(a)将纸浆的固体含量调节至2至25%; (b)向纸浆中加入絮凝剂并将其与其混合,所述絮凝剂的量为所述纸浆絮凝所需最佳的三分之二至98%; 和(c)将露出的浆液和絮凝剂的混合物在露天的床上撒布在其两侧是可渗透的床上,其底部的斜度小于每1000米的5米,所述的铺展发生在1 加入和混合絮凝剂后20分钟。

    Filter elements, apparatus and methods
    14.
    发明授权
    Filter elements, apparatus and methods 失效
    过滤元件,设备和方法

    公开(公告)号:US4431549A

    公开(公告)日:1984-02-14

    申请号:US420609

    申请日:1982-09-20

    CPC classification number: B01D39/2079 B01D29/03 B01D2201/10

    Abstract: Modules for use in forming rigid filter beds by laying a plurality of the modules side-by-side upon a flat base are in the form of porous, planar elements having a continuous, polygonal upper surface, a continuous lower surface approximately coterminous to the upper surface, and sides normal to said surfaces of substantially equal depth much shorter than their length, such elements comprising laminated layers, each layer being formed of particulate material of substantially uniform size rigidly fixed together in a matrix of cured binder, the particles of the layers being substantially different in size than the particles of the adjacent layers, the top surface being flat and the bottom surface being channelled. In preferred forms, the modules' surfaces are square, there are only a top layer and a bottom layer, the top layer is much thinner than the bottom layer and the particles in the top layer are appreciably smaller than the bottom layer particles.Methods of forming the modules and of using them to form filter beds are also disclosed.

    Abstract translation: 用于形成刚性过滤床的模块通过将多个模块并排放置在平坦的基部上而形成为具有连续的多边形上表面的多孔平面元件的形式,与上部大致相邻的连续下表面 表面和垂直于所述表面的与其长度短得多的相同深度的这些表面,这些元件包括层压层,每个层由基本上均匀的尺寸的颗粒材料形成,这些颗粒材料刚性地固定在固化粘合剂的基体中,层的颗粒 其尺寸与相邻层的颗粒基本上不同,顶表面是平坦的并且底表面被引导。 在优选的形式中,模块的表面是正方形的,仅有顶层和底层,顶层比底层薄得多,并且顶层中的颗粒明显小于底层颗粒。 还公开了形成模块并将其用于形成过滤床的方法。

    Eductor truck
    15.
    发明授权
    Eductor truck 失效
    电动车

    公开(公告)号:US4389314A

    公开(公告)日:1983-06-21

    申请号:US40551

    申请日:1979-05-21

    Abstract: An eductor truck having a frame with a settling tank pivotally mounted thereon. The settling tank having an eductor unit and a valve for the eductor mounted on the tank. The valve has an arm which can be used manually or by use of a hydraulic unit to operate the valve. A storage unit is mounted on the frame adjacent the settling tank. Pivoting means and door latching means are also provided.

    Abstract translation: 一种喷射器,其具有框架,其具有枢转地安装在其上的沉降罐。 沉淀池具有喷射器单元和安装在罐上的喷射器的阀。 该阀具有可手动使用的臂或通过使用液压单元来操作阀。 存储单元安装在靠近沉淀池的框架上。 还提供了转动装置和门闩装置。

    Waste water filtration and sludge removal system
    16.
    发明授权
    Waste water filtration and sludge removal system 失效
    废水过滤和污泥清除系统

    公开(公告)号:US4190534A

    公开(公告)日:1980-02-26

    申请号:US903781

    申请日:1978-05-08

    CPC classification number: B01D24/205 B01D2201/10

    Abstract: A waste water filtration and sludge removal system for filtering and removing sludge materials suspended in water resulting from steel pickling and cleaning operations and the like. The system includes a trough-like filtering tank having weep holes along the lower edge draining into an inclined channel for capturing filtered water for reuse, and also includes a multiple layer filter bed containing an upper layer of fine jagged surfaced particles for capturing filtered sludge. The sludge layer deposited on the surface of the upper filter layer is periodically moved by means of an adjustable screed blade toward an elevated discharge station for removal from the tank without significantly disturbing the filter bed. The screed blade may be automatically raised out of contact with the sludge layer when operated in the reverse direction.

    Abstract translation: 用于过滤和除去由钢酸洗和清洗操作等引起的悬浮在水中的污泥物料的废水过滤和污泥去除系统。 该系统包括槽状过滤槽,其具有沿着下边缘的排水孔,用于捕获用于再利用的过滤水的倾斜通道,并且还包括多层过滤床,其包含用于捕获过滤污泥的上层精细锯齿状表面颗粒。 沉积在上部过滤层表面上的污泥层通过可调节的刮板刮刀周期性地朝着升高的排放站移动,以便从罐中取出而不会明显地扰乱过滤床。 当反向操作时,熨平板叶片可能会自动升高与污泥层的接触。

    Divided phase separator
    18.
    发明授权
    Divided phase separator 失效
    分相分离器

    公开(公告)号:US6004461A

    公开(公告)日:1999-12-21

    申请号:US113217

    申请日:1998-07-10

    Inventor: Ronald B. Harris

    CPC classification number: B01D35/30 B01D29/23 B01D2201/10

    Abstract: A portable liquid-solid separator tank having a bed with a drain, surrounding sides and a dividing wall. A grate overlays the interior of the vessel, bed, and sides, and forms the dividing wall. A filter overlays the grate, extending up the sides and covering the top and the dividing wall. The separator, which may be vacuum loadable, is filled with a sludge which is then separated from the liquid it contains by gravity and hydrostatic pressure which force the liquid through the filter. Liquid is drained out of the bottom of the vessel and the solids are transported within the vessel. The solids are removed through a gate that may be provided in the tank, or by using a hydraulic lift system in much the same manner as a garbage truck empties a municipal dumpster. The filter is removed with the solids and usually discarded.

    Abstract translation: 一种便携式液固分离罐,其具有带有排水口,围绕侧面和分隔壁的床。 格栅覆盖了船只,床和侧面的内部,形成了分隔壁。 过滤器覆盖格栅,向上延伸并覆盖顶部和分隔壁。 可以是真空负载的分离器填充有污泥,然后通过重力和静水压力将其与其包含的液体分离,迫使液体通过过滤器。 液体从容器的底部排出,固体在容器内运输。 固体通过可以设置在罐中的闸门或通过使用液压提升系统以与垃圾车清空市政垃圾箱大致相同的方式被移除。 过滤器用固体除去,通常被丢弃。

    Selectively removable gravitational and vacuum sludge filtration
apparatus and method
    19.
    发明授权
    Selectively removable gravitational and vacuum sludge filtration apparatus and method 失效
    选择性可移动的重力和真空污泥过滤装置及方法

    公开(公告)号:US5858226A

    公开(公告)日:1999-01-12

    申请号:US848523

    申请日:1997-04-28

    CPC classification number: B01D29/15 B01D2201/10 B01D2201/26

    Abstract: A selectively removable gravitational and vacuum sludge filtration apparatus and method that provides for retrofit into a container and separation of the sludge solids from the sludge liquids therein. A pair of spaced vertically oriented filter assemblies each define a filtrate cavity therein and are connected by separator plates. The filter assemblies permit the flow of sludge liquids into the filtrate cavity, but not sludge solids. A separator divides each filtrate cavity into two cavity sections, a first filtrate cavity and a second filtrate cavity. Filtrate drains into first and second filtrate cavities by either vacuum or gravitational drainage, depending on the level of sludge within the container. Vacuum drainage occur in first or second filtrate cavity if either cavity is situated below the level of the sludge within the container. A first and second filtrate evacuation means provide for the evacuation of filtrate from the first and second filtrate cavities by the use of a vacuum pump. A set of fasteners hold the filter assemblies in the container and bias the filter assemblies against the container bottom. The fasteners may be released to provide for removal of the sludge filtration system from the container. Functionally applying this sludge filtration system provides a method of retrofitting a container with a sludge filtration system and removing filtrate from a sludge in the container.

    Abstract translation: 一种选择性可移除的重力和真空污泥过滤装置和方法,其提供改造成容器并将污泥固体与其中的污泥液体分离。 一对间隔开的垂直取向的过滤器组件在其中限定滤液空腔,并通过分隔板连接。 过滤器组件允许污泥液体流入滤液腔,但不允许污泥固体。 分离器将每个滤液腔分成两个空腔部分,第一滤液腔和第二滤液腔。 根据容器内的污泥含量,滤液通过真空或重力排水而排入第一和第二滤液腔。 如果任一空腔位于容器内的污泥水平以下,则在第一或第二滤液腔中发生真空排水。 第一和第二滤液抽出装置提供通过使用真空泵将滤液从第一和第二滤液腔抽出。 一组紧固件将过滤器组件固定在容器中并将过滤器组件偏压抵靠容器底部。 紧固件可以被释放以提供从容器中去除污泥过滤系统。 功能性地应用该污泥过滤系统提供了一种用污泥过滤系统改造容器的方法,并从容器中的污泥中除去滤液。

    Self-supporting straining device for a continuous digester
    20.
    发明授权
    Self-supporting straining device for a continuous digester 失效
    用于连续蒸煮器的自支撑应变装置

    公开(公告)号:US5744005A

    公开(公告)日:1998-04-28

    申请号:US501070

    申请日:1995-08-14

    CPC classification number: D21C7/14 B01D29/05 B01D2201/10

    Abstract: The present invention relates to a straining device in association with the displacement of liquid through a pulp bed preferably in connection with the withdrawal of cooking liquid in a continuous digester (1) for producing chemical pulp, which straining device (2) is preferably rectangular and comprises a number of strainer-bars (3), arranged in parallel, which have been fixed to at least two rod elements (4, 5), which are placed transversely in relation to the lengthwise extension of the bar-strainers, the said rod elements (4, 5) being made of metal, preferably stainless steel, and having a strength value RP 0.2 at 100.degree. C. which exceeds 200 MPA, preferably 300 MPA, and more preferably 350 MPA, and the width of the said rod element (4) being less than 800 mm, preferably 650 mm, and more preferably 550 mm, so that the straining device becomes self-supporting.

    Abstract translation: PCT No.PCT / SE94 / 00020 Sec。 371日期1995年8月14日 102(e)日期1995年8月14日PCT 1994年1月14日PCT PCT。 第WO94 / 19533号公报 1994年9月1日本发明涉及一种与通过纸浆床的液体移位有关的应变装置,优选与在用于生产化学纸浆的连续蒸煮器(1)中取出烹饪液体相关联,该应变装置(2 )优选地是矩形的并且包括多个平行布置的过滤棒(3),其已被固定到至少两个杆元件(4,5)上,所述至少两个杆元件相对于杆状件的纵向延伸横向放置, 过滤器,所述杆元件(4,5)由金属制成,优选为不锈钢,并且在100℃下具有超过200MPA,优选为300MPA,更优选为350MPA的强度值RP 0.2,宽度 的所述杆元件(4)小于800mm,优选为650mm,更优选为550mm,使得所述应变装置变得自支撑。

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