公开(公告)号：US5290454A

公开(公告)日：1994-03-01

申请号：US974604

申请日：1992-11-12

Applicant: Joseph Dorica ,  Steven Prahacs ,  Pritham Ramamurthy

Inventor： Joseph Dorica ,  Steven Prahacs ,  Pritham Ramamurthy

IPC: B01D33/09 ,  B01D36/02 ,  B01D37/02 ,  C02F1/52 ,  C02F9/00

CPC classification number: C02F1/5236 ,  B01D33/09 ,  B01D36/02 ,  B01D37/02 ,  B01D2201/282 ,  C02F2103/28 ,  Y10S210/919 ,  Y10S210/928

Abstract: A process is for removal of suspended solids including resin and fatty acids from pulp mill effluents including Chemi-Thermo-Mechanical Pulp (CTMP) mill effluents. The process involves filtration of untreated or primary treated effluents through a mat of primary sludge, pulp or woodroom sludge. A sludge mat is formed on a wire screen or punched drum and the effluent to be treated is filtered through the mat. Most of the suspended solids and a part of colloidal material and dissolved solids are retained by the mat. Following the filtration stage, the sludge is dewatered and removed. A portion of the sludge is recycled to form the mat for the next filtration cycle, while the excess sludge is purged. The filtration is achieved by the application of vacuum below the filter mat or pressure over mat. The process will produce treated effluent with low suspended solids and sludge at high solids consistency and eliminate the need not only for a clarifier but also for sludge thickening and filtration units often used in pulp mills. Calcium chloride may be added to the effluent prior to primary settling or before filtration, to enhance the removal of suspended and total solids.

Abstract translation: 一种方法是从包括Chemi-Thermo-Mechanical Pulp（CTMP）研磨废水的纸浆厂废液中除去包括树脂和脂肪酸在内的悬浮固体。 该过程包括通过初级污泥，纸浆或木材污泥的垫过滤未处理或初级处理的废水。 在丝网或打孔鼓上形成污泥垫，并且待处理的流出物通过垫过滤。 大多数悬浮固体和一部分胶体材料和溶解的固体被垫子保留。 过滤阶段后，将污泥脱水除去。 一部分污泥被再循环以形成用于下一个过滤循环的垫，同时清除多余的污泥。 过滤通过在过滤垫下方施加真空或在垫上施加压力来实现。 该方法将产生具有低悬浮固体和高固含量稠度的污泥的经处理的废水，不仅不需要澄清器，而且不需要经常用于纸浆厂的污泥增稠和过滤装置。 氯化钙可以在初次沉淀之前或过滤之前加入到流出物中，以增强悬浮和全部固体的去除。

公开(公告)号：US5284581A

公开(公告)日：1994-02-08

申请号：US997283

申请日：1992-12-17

Applicant: Robert A. Benson

Inventor： Robert A. Benson

IPC: B01D35/16 ,  B01D29/11 ,  B01D29/64 ,  B08B9/04 ,  B08B9/057 ,  B01D29/23 ,  B01D35/00

CPC classification number: B08B9/055 ,  B01D29/118 ,  B01D2201/282

Abstract: A processing wall is made part of a boundary of a continuous reentrant lumen, and wall conditioning runners circulate around this lumen to dislodge accumulated material from the processing wall and thereby continually restore the wall to the condition required for efficient operation.

Abstract translation: 处理壁被制成连续的可重入内腔的边界的一部分，并且壁调节流道在该内腔周围循环，以从处理壁移出积聚的材料，从而不断地将壁恢复到有效操作所需的状态。

公开(公告)号：US5246580A

公开(公告)日：1993-09-21

申请号：US943518

申请日：1992-09-11

Applicant: Hans Stedfeldt

Inventor： Hans Stedfeldt

IPC: B01D29/31 ,  B01D24/46 ,  B01D29/11 ,  B01D29/25 ,  B01D29/37 ,  B01D29/62 ,  B01D33/06 ,  B01D33/073 ,  B01D35/22 ,  B01D36/00 ,  C02F11/12

CPC classification number: B01D36/001 ,  B01D29/115 ,  B01D33/073 ,  B01D2201/084 ,  B01D2201/282 ,  B01D2201/287

Abstract: An improved method for separating solid particles from liquids, such as dewatering and thickening of sludge collected in a container (1), involves the use of at least one drainage unit (9) having doubled screened jacket walls (25, 26) defining a dewatering chamber (10). The liquid relieved of solids within the chamber is subjected to a turbulent motion acting against said screened jacket walls for obstruction of the solids deposition at the wall surfaces of the chamber facing the sludge in the container. The turbulent motion is obtained by a forced fluid F introduced in the chamber through one or more tubes (30, 31). The fluid may favourably be in form of compressed air or water returned from the reject system (14, 16).

Abstract translation: 一种用于从液体中分离固体颗粒的改进方法，例如在容器（1）中收集的污泥的脱水和增稠，涉及使用至少一个排水单元（9），该排水单元具有双重筛分的护套壁（25,26），限定脱水 室（10）。 在室内释放的固体的液体受到作用在所述屏蔽护套壁上的湍流运动，以阻止在面向容器中的污泥的室的壁表面处的固体沉积。 湍流运动是通过一个或多个管（30,31）引入腔室中的强制流体F获得的。 流体可有利地是压缩空气或从废物系统（14,16）返回的水的形式。

公开(公告)号：US5202019A

公开(公告)日：1993-04-13

申请号：US721548

申请日：1991-07-22

Applicant: Magne Skogland

Inventor： Magne Skogland

IPC: B01D29/35 ,  B01D29/64 ,  C02F1/00 ,  E03F5/14

CPC classification number: E03F5/14 ,  B01D29/356 ,  B01D2201/282

Abstract: One has aimed at providing a simple, reliable and efficient purification device for the mechanical purification of sewage. At this end, the sewage purification device (1) comprises substantially a strainer pipe (2), which may be designed to be coupled to a sewage pipe (P1), and which is perforated in that portion thereof which, in the position of use, constitutes the bottom portion. The strainer pipe (2) is assigned a water collecting pipe (4) underlying the former in the position of use, extending parallely thereto and, preferably, being sealingly connected thereto, said water collecting pipe (4) being adapted to receive mechanically purified sewage from the strainer pipe (2). The water collecting pipe (4) is open or, respectively, provided with holes, perforations or slots in the portion thereof being opposite to the strainer pipe (2). Within the strainer pipe (2), which has an opening (6) at one end thereof, there is provided a scraper or pusher device (18, 18', 18") adapted to push out more or less solid sewage mass through said opening (6 ) of the strainer pipe (2).

Abstract translation: PCT No.PCT / NO90 / 00016 Sec。 371日期1991年7月22日 102（e）日期1991年7月22日PCT 1990年1月24日PCT PCT。 出版物WO90 / 09352 日期为1990年8月23日。其目的是为污水的机械净化提供简单，可靠和高效的净化装置。 在这一点上，污水净化装置（1）基本上包括过滤管（2），其可被设计成与污水管道（P1）联接，并且在其使用位置被穿孔 ，构成底部。 过滤管（2）在其使用位置上分配有位于前者的集水管（4），并且优选地与其密封连接，所述集水管（4）适于接收机械净化的污水 从过滤管（2）。 集水管（4）在与过滤管（2）相对的部分开口或分别设有孔，穿孔或槽。 在其一端具有开口（6）的过滤管（2）内设置有刮刀或推动装置（18,18'，18“），其适于将更多或更少的固体污水块推出所述的 过滤管（2）的开口（6）。

公开(公告)号：US5173196A

公开(公告)日：1992-12-22

申请号：US438731

申请日：1989-11-17

Applicant: Dennis P. Macrae

Inventor： Dennis P. Macrae

IPC: B01D29/25 ,  B30B9/06 ,  B30B9/26

CPC classification number: B30B9/267 ,  B01D29/25 ,  B30B9/062 ,  B30B9/26 ,  B01D2201/282

Abstract: A device for the removal of solids from slurries by continuous compaction in a screen chamber. Pressure of liquid in the chamber causes continuous extrusion of a dewatered solid from an open ended chamber. The walls of the chamber may be constructed from longitudinal wedge bars spaced apart to provide filtering spaces between them. A high pressure pumping arrangement, including a first slurry pump and an auxiliary piston pump, is provided to maintain a high-pressure throughout the chamber to facilitate the continuous extrusion.

Abstract translation: 用于通过在筛分室中连续压实从浆料中除去固体的装置。 室内的液体压力导致从开放式腔室连续挤出脱水固体。 室的壁可以由间隔开的纵向楔形杆构成，以在它们之间提供过滤空间。 提供包括第一浆料泵和辅助活塞泵的高压泵送装置以在整个室中保持高压以促进连续挤出。

公开(公告)号：US5154825A

公开(公告)日：1992-10-13

申请号：US690952

申请日：1991-05-09

Applicant: Dieter Kupka

Inventor： Dieter Kupka

IPC: B01D25/12 ,  B01D29/11 ,  B01D33/073 ,  B01D35/16

CPC classification number: B01D35/16 ,  B01D29/114 ,  B01D33/073 ,  B01D2201/282 ,  B01D2201/287

Abstract: Disclosed is a filter press comprising a substantially cylindrical vessel, a plurality of filter elements disposed in the vessel parallel to one another, and a rotor having a rotor shaft rotatably mounted in the vessel and a plurality of rotor elements fixedly connected to the rotor shaft and extending each between two adjacent filter elements, the surface of the rotor elements being adapted to be forced towards the filter elements for mechanically compressing filter cakes accumulated thereon, wherein the axis of the vessel is disposed in an upright position, the filter elements and rotor elements being formed as cylindrical wall members disposed in concentric relationship to one another with the rotor elements extending into the spaces between adjacent filter elements and being secured to a mounting structure connected to the rotor shaft, while the filter elements are supported on a carrier grid in the vessel. The lower ends of the rotor elements can be lowered to an advanced position in which they close the lower end of the sludge space between the respective rotor element and the associated filter element.

Abstract translation: PCT No.PCT / EP89 / 01385第 371日期1991年5月9日 102（e）日期1991年5月9日PCT提交1989年11月17日PCT公布。 出版物WO90 / 05574 日期为1990年5月31日。公开是一种压滤机，其包括基本上圆柱形的容器，多个过滤元件，彼此平行地设置在容器中，转子具有可转动地安装在容器中的转子轴和多个转子元件， 连接到转子轴并且在两个相邻的过滤器元件之间延伸，转子元件的表面适于被迫朝向过滤器元件，用于机械地压缩其上积聚的过滤蛋糕，其中容器的轴线设置在直立位置， 过滤器元件和转子元件形成为彼此同心地设置的圆柱形壁构件，其中转子元件延伸到相邻的过滤元件之间的空间中并且固定到连接到转子轴的安装结构，同时过滤元件被支撑 在船上的载体网格上。 转子元件的下端可以下降到高级位置，在该位置上它们关闭相应转子元件和相关过滤元件之间的污泥空间的下端。

公开(公告)号：US5026487A

公开(公告)日：1991-06-25

申请号：US471953

申请日：1990-01-29

Applicant: Antoine G. Abdulmassih

Inventor： Antoine G. Abdulmassih

IPC: D21G3/00 ,  B01D33/073

CPC classification number: B01D33/073 ,  B01D2201/282

Abstract: A method and apparatus is provided for aiding in the removal of a fibrous material sheet from a smooth porous filter surface. An intermittent pattern of round-bottomed compression irregularities is impressed upon the sheet blunt round-edged device to cause it to be released from the filter surface in the areas where the irregularities are impressed by the device so that it will not stick to the filter surface nor split when it is contacted by the doctor device which guides it away from the filter surface. The spacing and the geometry of the compression pattern are according to the pulp characteristics and the operating conditions of the filter.

Abstract translation: 提供了一种用于帮助从光滑的多孔过滤器表面去除纤维材料片的方法和装置。 圆形的圆形压缩不规则性的间歇性图案被压在片状扁平圆形装置上，以使其在不规则部分被装置印刷的区域中从过滤器表面释放，使得其不会粘附到过滤器表面 当医生装置接触时，也不会将其从过滤器表面引导出来。 压缩图案的间距和几何形状根据纸浆特性和过滤器的操作条件而定。

公开(公告)号：US4995988A

公开(公告)日：1991-02-26

申请号：US286386

申请日：1988-12-14

Applicant: Aaro Ahlgren

Inventor： Aaro Ahlgren

IPC: B01D33/06 ,  B01D24/46 ,  B01D33/073 ,  B01D33/44 ,  B01D33/58 ,  B01D35/31 ,  D21C9/06 ,  D21C9/18 ,  D21D1/40 ,  D21F9/04 ,  B01D33/044

CPC classification number: D21C9/06 ,  B01D33/073 ,  B01D2201/282 ,  B01D35/31

Abstract: Method and drum filter for thickening of slurry and for treatment of the slurry with liquid. The slurry to be thickened is passed onto the filter face of a drum (3) revolving in a basin (3), and the treatment liquid is passed through the pulp web formed on the drum. The consistency of the pulp web is increased by pressing a compression plate (10) against the pulp web. The compression force of the compression plate (10) is produced by means of the pressure of a liquid and/or gas passed to the convex side of the plate. The compression force can be adjusted by adjusting the pressure prevailing in the gas space outside the drum (3).

Abstract translation: 方法和鼓式过滤器用于浆料的增稠和用液体处理浆料。 将要加稠的浆料通过在盆（3）中旋转的滚筒（3）的过滤面上，处理液通过形成在滚筒上的纸浆纸幅。 通过将压板（10）压靠在纸浆网上来增加纸幅的稠度。 压缩板（10）的压缩力通过传递到板的凸面的液体和/或气体的压力产生。 可以通过调节鼓（3）外的气体空间中的压力来调节压缩力。

公开(公告)号：US4994183A

公开(公告)日：1991-02-19

申请号：US319235

申请日：1989-02-24

Applicant: Bjarne Nilsson

Inventor： Bjarne Nilsson

IPC: B01D33/21

CPC classification number: B01D33/215 ,  B01D2201/282

Abstract: A disk filter including a plurality of rotatable, annular filter disks (3) arranged mutually spaced in an axial direction, and disposed for being partially immersed in a liquid or a suspension to be filtered. Each filter disk comprises a plurality of filter sections (4) which are in communication with axially directed filtrate conduits (2) arranged in the peripheries of the disks (3) for discharge of filtrate. The filtrate conduits (2) are provided with backwash barriers which are adapted to prevent liquid flow from the filtrate conduits radially inwards when the filter sections (4) rise above the liquid surface. The backwash barriers have been achieved by each filter section (4) being connected to an axial filtrate conduit in the form of a pipe (2), the main portion of the cross-section of the pipe at the place of attachment being located after each part of the filter section (4) as seen in the direction of rotation (A).

Abstract translation: PCT No.PCT / SE88 / 00349 Sec。 371日期1989年2月24日 102（e）日期1989年2月24日PCT Filed 1988年6月22日PCT Pub。 出版物WO88 / 10144 日期：1988年12月29日。一种盘式过滤器，包括沿轴向相互间隔布置的多个可旋转环形过滤盘（3），并且被设置为部分地浸没在待过滤的液体或悬浮液中。 每个过滤盘包括多个过滤器部分（4），其与布置在盘（3）的周边中的轴向指向的滤液管道（2）连通，用于排出滤液。 滤液管道（2）设置有反冲洗屏障，反洗屏障适于防止当过滤器部分（4）升高到液体表面上方时液体从滤液导管径向向内流动。 已经通过每个过滤器部分（4）连接到管道（2）形式的轴向滤液导管来实现回洗屏障，在附接位置处的管道的横截面的主要部分位于每个 过滤器部分（4）的一部分（如旋转方向（A）所示）。

公开(公告)号：US4936992A

公开(公告)日：1990-06-26

申请号：US319236

申请日：1989-02-24

Applicant: Bjarne Nilsson

Inventor： Bjarne Nilsson

IPC: B01D33/21

CPC classification number: B01D33/215 ,  B01D2201/282

Abstract: A disk filter, including a plurality of rotatable, axially spaced annular filter disks (6:1-6:11) adapted to be partially immersed in a liquid or a suspension which is to be filtered. Each filter disk comprises a plurality of filter elements 6:1a-f . . . 6:11a-f) which are in communication with axial filtrate conduits (2a-2l) arranged at the outer peripheries of the annular disks for discharge of filtrate. For increasing the flow speed of the filtrate in the axial filtrate conduits these slope downwards in the flow direction. This has been achieved in that a filter element (6:1a) of a filter disk (6:1b) is displaced relative to the filter element (6:2a) of the filter disk (6:2) connected to the same filtrate conduit (2a) and being the following filter disk, counted in the flow direction in the axial filtrate conduit, so that the first mentioned filter element is in advance of the later mentioned filter element, as counted in the direction of rotation.

Abstract translation: PCT No.PCT / SE88 / 00350 Sec。 371日期1989年2月24日 102（e）日期1989年2月24日PCT Filed 1988年6月22日PCT Pub。 公开号WO88 / 10145 日期：1988年12月29日。一种盘式过滤器，包括多个可旋转的，轴向隔开的环形过滤盘（6：1-6：11），其适于部分地浸没在待过滤的液体或悬浮液中。 每个过滤盘包括多个过滤元件6：1a-f。 。 。 6：11a-f），其与设置在环形盘的外周处的排出滤液的轴向滤液导管（2a-21）连通。 为了提高滤液在轴向滤液管道中的流速，这些斜率沿流动方向向下倾斜。 这已经实现了，过滤盘（6：1b）的过滤元件（6：1a）相对于连接到同一滤液管道的过滤盘（6：2）的过滤元件（6：2a） （2a），并且是在轴向滤液导管中沿流动方向计数的以下过滤盘，使得首先提到的过滤元件比后面提到的过滤元件提前，如在旋转方向上计数的。