公开(公告)号：US10857491B2

公开(公告)日：2020-12-08

申请号：US15316379

申请日：2015-06-05

申请人： Evoqua Water Technologies, LLC

发明人： Marco Braschi ,  Roberto Negrini

IPC分类号： B01D33/23 ,  B01D29/07 ,  B01D29/41 ,  B01D33/21 ,  B01D29/01 ,  B01D33/067 ,  B01D33/11 ,  B01D33/50 ,  B07B1/46

摘要： The present invention relates to a filtering panel (100) for a disk filter and a disk filter for water purification, comprising a metal filter cloth (16, 116) such as a stainless steel filter cloth, pre-tensioned in both warp and weft directions and fastened to a frame (10, 110) comprising a peripheral portion (11, 111), which is integral with an inner grillwork (12) and which divides the inner area of the peripheral portion (11, 111) into fields (15, 115). The frame (10, 110) comprises a plastic material reinforced with glass fibers or carbon fibres such as polypropylene loaded with fibreglass in an amount of at least 20 weight percent. Each field of the grillwork (12, 112) has an area not exceeding 10% of the inner area of the peripheral portion (11, 111). The pre-tensioning of the filter cloth (16, 116) in both directions is from at least 20% of the yield stress of the cloth (16, 116). Further the present invention relates to a disk filter comprising said filtering panels (100) and method of making said filtering panel (100).

公开(公告)号：US10589201B2

公开(公告)日：2020-03-17

申请号：US16332908

申请日：2017-09-19

申请人： Per Larsson ,  Veolia Water Solutions & Technologies Support

发明人： Per Larsson

IPC分类号： B01D33/13 ,  B01D33/21 ,  B01D33/50 ,  B01D33/80 ,  B01D33/11

摘要： A frame-type disc filter (100) is provided with a bypass water collector (33) disposed adjacent an inlet to the disc filter. Influent water overflows the inlet into the bypass water collector. A conduit is communicatively connected to the bypass water collector for directing the bypass water from the frame-type disc filter to an effluent channel that is independent of the frame-type disc filter.

公开(公告)号：US10391455B2

公开(公告)日：2019-08-27

申请号：US14779809

申请日：2014-03-26

申请人： MST MICROSIEVE TECHNOLOGIES GMBH

发明人： Franz Liebermann ,  Cornelis Johannes Maria Van Rijn

IPC分类号： B01D33/21 ,  B01D33/50 ,  B01D63/16 ,  B01D65/02 ,  B01D65/08 ,  B01D33/23 ,  B01F3/08

摘要： The invention relates to a device for the microfiltration, ultrafiltration, or nanofiltration and/or the emulsification of liquids. The device has at least one rotatable membrane medium, which has a filtrate/permeate side or a side facing a dispersed phase and a concentrate/retentate side or a side facing a coherent phase and which can be rotated in a container in order to produce a vacuum on an unfiltered liquid side or the side facing the coherent phase on partial regions of the at least one rotatable membrane medium in the container in small time segments at a frequency of 1-100 Hz. Said container has at least one feed for an unfiltered liquid or the coherent phase, at least one overflow for an unfiltered liquid or an emulsion, and at least one rotatable channel for filtrate/permeate drainage or feed of the dispersed phase, and a suction device, in particular in the manner of a suction strip or nozzle plate. The suction device has at least one suction strip or nozzle plate arranged parallel to the rotatable membrane medium or is such a suction strip or nozzle plate, which is attached at a distance of less than 0.1 to 10 mm from the membrane medium, and thus cleans non-permeating materials collected on the unfiltered liquid side during a filtration process from a surface of the membrane medium, or promotes drop formation of the dispersed phase exiting from a membrane surface on the side facing the coherent phase during an emulsification process. The invention further relates to uses of the device.

公开(公告)号：US20180318737A1

公开(公告)日：2018-11-08

申请号：US15771179

申请日：2016-10-14

申请人： GEA MECHANICAL EQUIPMENT GMBH

发明人： Wilfried MACKEL ,  Verena GRÖNE

IPC分类号： B01D33/21 ,  B01D33/68 ,  B01D63/16

CPC分类号： B01D33/21 ,  B01D33/68 ,  B01D63/16 ,  B01D2313/025 ,  B01D2313/04 ,  B01D2313/12 ,  B01D2313/20 ,  B01D2313/243 ,  B01D2315/02 ,  B01D2319/04

摘要： A filtration arrangement for a filtration device having a container is provided. The filtration arrangement includes at least two hollow shafts rotatably mounted in a machine frame and on which a plurality of membrane filter disks are arranged. The at least one or the plurality of hollow shafts being assigned at least one drive device, the discharge of permeate from the container being possible through the hollow shafts, and it being possible to insert each hollow shaft at one of its ends with the plurality of membrane filter disks into the container, such that its opposite end projects out of the container. A rotatable pump disk, which forms part of a centrifugal pump arrangement for pumping permeate, is arranged or formed at the opposite end of each rotatable hollow shaft.

公开(公告)号：US20180222769A1

公开(公告)日：2018-08-09

申请号：US15505957

申请日：2015-08-25

申请人： PRIME SERVICES TRUSTEE LIMITED

发明人： CRAIG NAZZER

IPC分类号： C02F1/00 ,  C02F1/38 ,  B01D33/21 ,  B01D33/54 ,  B01D33/68

CPC分类号： C02F1/004 ,  B01D33/21 ,  B01D33/54 ,  B01D33/68 ,  C02F1/38 ,  C02F11/121 ,  C02F11/127 ,  C02F2103/16 ,  C02F2103/28 ,  C02F2103/343 ,  C02F2103/365

摘要： This invention relates generally to a filtration process and apparatus for separating valuable or harmful process liquids from mixtures or slurries that contain such liquids and solid particles. In particular, the invention relates to a filtration process for separating Process Liquid from a feed slurry that comprises a mixture of the Process Liquid and solid particles, the process employing a Sweep Liquid that is less dense than the Process Liquid.

公开(公告)号：US09938159B2

公开(公告)日：2018-04-10

申请号：US13879256

申请日：2011-10-07

申请人： Per Larsson

发明人： Per Larsson

IPC分类号： B01D33/21 ,  B01D33/15 ,  B01D33/23 ,  B01D33/25 ,  C02F1/00 ,  B01D33/46

CPC分类号： C02F1/001 ,  B01D33/15 ,  B01D33/155 ,  B01D33/21 ,  B01D33/215 ,  B01D33/23 ,  B01D33/25 ,  B01D33/463

摘要： A device is provided for cleaning a filter cloth that forms a part of a filter element in a rotary disc filter. The device includes a flush tube and a spray nozzle operatively connected to the flush tube for receiving a cleaning fluid from the flush tube and directing the cleaning fluid onto the filter cloth.

公开(公告)号：US09833732B2

公开(公告)日：2017-12-05

申请号：US14509472

申请日：2014-10-08

申请人： Andritz AG

发明人： Rainer Prader

IPC分类号： B01D33/21 ,  B01D36/00 ,  B01D33/46 ,  B01D33/48

CPC分类号： B01D36/001 ,  B01D33/21 ,  B01D33/466 ,  B01D33/48

摘要： The invention relates to a filter for continuous filtration of a suspension under pressure, with a pressure vessel (1), rotating filter elements (2) disposed in the pressure vessel (1), where the filter element (2) passes through one filter cycle for each rotation, with filter zones in liquid and gaseous phase, also with filtrate channels (4′) that are connected between the filter elements (2) and separate filtrate outlets (14, 14′, 215) for each filter zone, as well as a device to control the individual filtrate zones by means of a control disc (44), where the control disc (44) has filtrate outlets (114, 115) for liquid and gaseous phase. It is primarily characterized in that a venting zone (46) is provided before the filtrate outlet of the liquid phase, viewed in the direction of the filter cycle. Thus, the compressed air in the filter elements (2) and filtrate channels (4′) can be carried off and pressure-relieved in a favorable manner.

公开(公告)号：US09669338B2

公开(公告)日：2017-06-06

申请号：US14645064

申请日：2015-03-11

申请人： GL&V Luxembourg S.à.r.l.

发明人： Eric Giasson ,  Gregory Gilmore ,  Karl Gabrielsson ,  James P. Burns ,  John O. Milliken

IPC分类号： B01D33/23 ,  B01D33/25 ,  B01D33/80 ,  B01D33/31 ,  B01D33/21

CPC分类号： B01D33/23 ,  B01D33/21 ,  B01D33/25 ,  B01D33/803 ,  B01D2201/04 ,  B01D2201/60

摘要： A disc filter sector comprising a trapezium tubular support frame, and a trapezium screen frame supporting a screen cloth, the trapezium filter medium element being connected to the trapezium tubular support structure. More particularly, there is a pair of such filter sectors, and the sectors are connected together by an overlying cap.

公开(公告)号：US09636611B2

公开(公告)日：2017-05-02

申请号：US14377040

申请日：2013-02-05

申请人： ANDRITZ OY

发明人： Pentti Luukkanen

IPC分类号： B01D33/46 ,  B01D37/02 ,  B01D33/21 ,  D21C11/00

CPC分类号： B01D33/463 ,  B01D33/21 ,  B01D33/466 ,  B01D37/02 ,  D21C11/0064

摘要： A method associated for treating a precoat on a rotating filtering surface of lime sludge filter including: accumulating a precoat of lime sludge on the filtering surface by rotating the filtering surface in a first direction through a lime sludge slurry; after accumulating the precoat, rotating the filtering surface in an opposite direction to the first direction; while rotating the filtering surface in the opposite direction, spraying a liquid onto the precoat on the filtering surface wherein the spraying is applied to the precoat above a scraper adjacent the filtering surface and the spraying removes at least a portion of the precoat from the filtering surface, and flowing the removed precoat over the scraper and into a basin.

公开(公告)号：US09610545B2

公开(公告)日：2017-04-04

申请号：US14418708

申请日：2013-03-29

申请人： LG ELECTRONICS INC.

发明人： Junseok Lee ,  Sumin Lee ,  Hyunhwan Oh ,  Changho Lee ,  Minjoung Kim

IPC分类号： B01D33/21 ,  B01D39/00 ,  B01D67/00 ,  B01D69/08 ,  B01D71/34 ,  D01D5/247 ,  D01F6/12 ,  B01D69/02

CPC分类号： B01D69/08 ,  B01D69/02 ,  B01D69/087 ,  B01D71/34 ,  B01D2323/08 ,  B01D2325/02 ,  B01D2325/026 ,  B01D2325/30 ,  D01D5/247 ,  D01F6/12

摘要： The present invention relates to a hollow-fibre membrane having a novel structure and to a production method therefor. The hollow-fibre separation membrane of the present invention has an outermost shell surface pore size of between 0.001 and 0.05 μm and a mean pore size of between 0.01 and 0.1 μm while having, in sequence from the outermost shell surface, a dense sponge structure, a finger-like sponge structure and a mixed sponge-bead structure; and, because of this specific triple structure, the invention has outstanding mechanical strength, porosity and water permeability alike while also having a high performance whereby it is possible to eliminate even viruses.