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    Apparatus and method for separating liquids and solids
    181.
    发明授权
    Apparatus and method for separating liquids and solids 失效
    用于分离液体和固体的装置和方法

    公开(公告)号：US4886608A

    公开(公告)日：1989-12-12

    申请号：US261777

    申请日：1988-10-24

    Applicant: Gary E. Cook

    Inventor： Gary E. Cook

    IPC: B01D33/03

    CPC classification number: B01D33/0376 ,  B01D2201/204

    Abstract: An apparatus for separating liquids and solids from a mixture thereof comprises a trough structure (12) in which is suspended a filter means (14) on which the mixture can be placed. A vacuum mechanism (16) draws a vacuum beneath the filter means to draw the liquids downwardly from the solids, and a oscillating mechanism (20) causes the remaining solids on the filter to move in a conveying direction. A flexible perforated sheet (60) is provided beneath and in generally continuous contact with the filter means (14) and which can be intermittently flexed to maintain the filter means unobstructed by solids.

    Abstract translation: 用于从其混合物中分离液体和固体的装置包括槽结构（12），其中悬挂有可以放置混合物的过滤装置（14）。 真空机构（16）在过滤器装置下方抽取真空以将液体从固体中向下抽吸，并且振荡机构（20）使过滤器上的剩余固体沿输送方向移动。 柔性穿孔板（60）设置在过滤器装置（14）的下方并与其大致连续接触，并且可以间歇地弯曲，以保持过滤装置不被固体阻挡。

    Intermittent vacuum filter apparatus incorporating a double valve arrangement
    182.
    发明授权
    Intermittent vacuum filter apparatus incorporating a double valve arrangement 失效
    具有双阀装置的间歇真空过滤装置

    公开(公告)号：US4857194A

    公开(公告)日：1989-08-15

    申请号：US181103

    申请日：1988-04-13

    Applicant: Henri G. W. Pierson

    Inventor： Henri G. W. Pierson

    IPC: B01D29/09 ,  F16K11/044

    CPC classification number: F16K11/044 ,  B01D29/09 ,  B01D2201/204

    Abstract: A double valve arrangement is installed in intermittently operating vacuum filter apparatus in a pipeline connecting the filter means to a vacuum source to vent the line to atmosphere whenever the vacuum is shut off. This valve arrangement comprises a pipe section provided with a lateral opening, connected to the filter means, and with internal mutually facing annular shoulders disposed at respective sides of the lateral opening, and a piston-mounted sealing disc which is of smaller diameter than the pipe section and is reciprocable inside same to abut sealingly the one or the other of the shoulders and thereby bring the lateral opening into communication with the respective opposing end of the pipe section, which is connected, respectively, either to the vacuum source or to atmosphere. An annular gap is always present between the peripherly of the disc and the internal surface of the pipe section so that movement of the disc, e.g. at a frequency of 5 to 20 cycles per minute, is not impeded by rubbing.

    Abstract translation: 双重阀装置安装在间歇式操作的真空过滤装置中，连接过滤器装置到真空源的管道，每当真空被切断时将其排出到大气中。 该阀装置包括：管段，其设置有连接到过滤装置的侧向开口，以及设置在侧向开口的相应侧面的内部相互面对的环形肩部，以及直径小于管道的活塞安装密封盘 并且在其内部可往复运动以密封地邻接肩部中的一个或另一个，从而使侧开口与管段的相应的相对端分别连通，该连接部分别连接到真空源或大气。 在盘的外围和管部分的内表面之间始终存在环形间隙，使得盘的移动，例如， 以每分钟5到20个循环的频率，不受摩擦的阻碍。

    Microscreen method and apparatus
    183.
    发明授权
    Microscreen method and apparatus 失效
    微型方法和装置

    公开(公告)号：US4198299A

    公开(公告)日：1980-04-15

    申请号：US794892

    申请日：1977-05-09

    Applicant: Lloyd Ewing ,  Michael J. Bykowski

    Inventor： Lloyd Ewing ,  Michael J. Bykowski

    IPC: B01D33/067 ,  B01D33/10

    CPC classification number: B01D33/067 ,  B01D2201/202 ,  B01D2201/204 ,  B01D2201/282

    Abstract: Drop-back of solids into the drum pool of a rotary microscreen is reduced by applying a limited gas pressure differential across an unsubmerged portion of the screen cloth. The pressure is not for the purpose of increasing the driving force, .DELTA.H, of the liquid passing through the cloth. For purposes of this disclosure, .DELTA.H is the pressure differential existing across the screen below the surface of both the drum pool and tank pool. In fact, assuming other factors remain equal, application of a gas pressure differential to an unsubmerged portion of the screen cloth, with consequent reduction in drum pool suspended solids concentration, will normally reduce .DELTA.H even though the gas pressure also acts on the surface of the drum pool. More significantly, the invention enables operation of a microscreen unit at increased flow capacity at a given .DELTA.H. Whatever pressure is applied, there will be some reduction of torque, bearing load and wear at any given .DELTA.H.

    Abstract translation: 通过在筛布的未浸没部分施加有限的气体压差来减少固体落入旋转微型筛的滚筒中。 压力不是为了增加通过布料的液体的驱动力（DELTA H）。 为了本公开的目的，DELTA H是存在于鼓池和储罐池表面下方的屏幕上的压力差。 事实上，假设其他因素保持不变，将气体压力差施加到筛布的未浸泡部分，从而减少鼓池悬浮固体浓度，通常会降低DELTA H，即使气体压力也作用在 鼓池。 更重要的是，本发明能够在给定的DELTA H下以增加的流动能力操作微型荧光屏单元。无论施加什么压力，在任何给定的DELTA H处将有一些扭矩，轴承负载和磨损的减小。

    Method and device for separating liquids and solids from a mixture
    184.
    发明授权
    Method and device for separating liquids and solids from a mixture 失效
    用于从混合物中分离液体和固体的方法和装置

    公开(公告)号：US4038193A

    公开(公告)日：1977-07-26

    申请号：US309286

    申请日：1972-11-24

    Applicant: Jacob van Oosten

    Inventor： Jacob van Oosten

    IPC: B01D33/04

    CPC classification number: B01D33/04 ,  B01D2201/204

    Abstract: The invention relates to a method and a device for separating liquids and solids from a mixture, in which the mixture is applied in the form of a layer to a movable, endless filter belt, which is supported from a subjacent suction box adapted to move parallel to the belt, in which box a subatmospheric pressure is intermittently produced, the liquid constituents of the mixture being drawn across the filter belt during the periods of subatmospheric pressure, while the filter belt and the suction box are in intimate contact with each other and do not move relatively to each other owing to the suction force, whereas at the restoration of the atmospheric pressure in the suction box a relative displacement of the filter belt and the suction box is carried out.

    Process for treating a slurry of cellulosic material
    185.
    发明授权
    Process for treating a slurry of cellulosic material 失效
    处理纤维素材料浆料的方法

    公开(公告)号：US4014736A

    公开(公告)日：1977-03-29

    申请号：US533692

    申请日：1974-12-17

    Applicant: Ernest Arthur Sexton

    Inventor： Ernest Arthur Sexton

    IPC: D21C9/02 ,  B01D11/00 ,  B01D33/04 ,  D21C9/06 ,  D21C9/18 ,  D21F1/80

    CPC classification number: D21F1/80 ,  B01D33/04 ,  D21C9/06 ,  B01D2011/002 ,  B01D2201/204

    Abstract: A slurry of cellulosic material is diluted to a flowable consistency and subjected to a pressure differential on a permeable surface to increase the slurry consistency to a value between the consistency of the diluted slurry and the consistency of th slurry prior to dilution thereby forming a mat of cellulosic material on the permeable surface. The liquid and solids which pass through the permeable surface as a result of the pressure differential are recycled for use as slurry diluent, and to the mat of cellulosic material is applied a treating liquid, such as a washing liquid.

    Abstract translation: 将纤维素材料的浆料稀释至可流动的稠度，并在可渗透表面上进行压差，以将浆料稠度提高到稀释浆料的稠度与稀释浆料的稠度之间的值，从而形成垫 可渗透表面上的纤维素材料。 作为压力差的结果，通过可渗透表面的液体和固体被再循环用作浆料稀释剂，并且对纤维素材料的垫施加处理液体，例如洗涤液体。

    Suction backwash means for a low pressure,multiple element,filter assembly
    187.
    发明授权
    Suction backwash means for a low pressure,multiple element,filter assembly 失效
    低压，多功能元件，过滤器组件的吸收反冲装置

    公开(公告)号：US3476248A

    公开(公告)日：1969-11-04

    申请号：US3476248D

    申请日：1968-03-01

    Applicant: RENARD P ADAMS

    Inventor： ADAMS RENARD P

    IPC: B01D29/11 ,  B01D35/22

    CPC classification number: B01D29/118 ,  B01D29/54 ,  B01D29/668 ,  B01D2201/204 ,  B01D2201/282

    Abstract: 1,183,429. Filters for liquids. R. P. ADAMS CO. Inc. 6 Aug., 1968 [1 March, 1968], No. 37454/68. Heading B1D. Backwashing suction is applied to opposite ends of filter tubes 58 simultaneously by sleeves e.g. 130, 130' which can move to communicate sequentially with the filter tubes. As described, there are two sets of filter tubes 58, 60 arranged in concentric circles, in a chamber immersed in raw water which flows into the open ends of the tubes and out at 44. Pressure applied through lines 184, 194 to eductors 180, 190 induces suction in tube 80 connected to sleeves 124, 154, 124', 154' caused to rotate (when required) by motor 102. Each sleeve, e.g. 134 is sealed against the inlet port, e.g. 50, by a tube (136) sliding inside the sleeve and urged against the port by a spring (138), Fig. 4 (not shown). A spring-urged seal plate (144, 146) surrounds each sleeve and seals off the open ends of two adjacent tubes, to reduce bypassing through them. Reference has been directed by the Comptroller to Specifications 982,425 and 1,071,310.

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