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公开(公告)号：US12023629B2
公开(公告)日：2024-07-02
申请号：US16999843
申请日：2020-08-21
CPC分类号： B01D63/0821 , B01D25/215 , B01D29/46 , B01D2221/04 , B01D2313/13 , B01D2313/2011 , E21B21/065
摘要： Stacked-plate filters may include a plurality of stacked filter plates with small gaps therebetween. The present disclosure provides a stacked-plate filter apparatus comprising a plurality of filter plates stacked along a longitudinal axis with the filter plates substantially parallel. Each filter plate has a respective outer rim, first face and second face. Each of the filter plates defines a respective opening therethrough. The outer rim forms a first peripheral edge at the first face and a second peripheral edge at the second face. The first peripheral edge is radially misaligned from the second peripheral edge to form an offset gap interface for each adjacent pair of the filter plates. For each of the filter plates, the respective outer rim may be tapered from the first face to the second face to provide the radial misalignment.
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公开(公告)号：US20240091679A1
公开(公告)日：2024-03-21
申请号：US17945219
申请日：2022-09-15
CPC分类号： B01D25/215 , B01D25/1645 , B01D25/284 , B01D25/34 , B01D37/02 , B01D37/03
摘要： A process for the preparation of a concentrated filter cake from an admixture of partially-decomposed organic material and a polar liquid using a filter press without the input of thermal heat or superheated steam or other pressurized gas or liquid is provided by this invention. The admixture is mixed with an additional amount of the polar liquid to produce a feed slurry of the admixture having a moisture content of about 90-99% wt. The resulting slurry admixture is then introduced into the filter press having a plurality of filter plates with porous membranes secured along their outlet. The pressure condition introduced inside the filter plate chambers is increased by a pressurized gas or liquid to force the polar liquid from the admixture slurry though apertures contained in the membrane, thereby leaving a filter cake of the partially-decomposed organic material having a moisture content that is lower than the moisture content of the initial partially-decomposed organic material feed. The process and its equipment may be used to treat a variety of partially-decomposed organic material/polar liquid slurry admixtures, including high moisture peat containing water, and reduce the moisture content of the resulting peat filter cake to as low as 60% wt for peat or about 50% wt for a peat/Biochar admixture.
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公开(公告)号：US11565215B2
公开(公告)日：2023-01-31
申请号：US16924577
申请日：2020-07-09
发明人： Mark Vander Hoff , Todd Benson , Marc Pugh
摘要： The present invention relates to modification to permeate channels and permeate materials in a cross-flow filtration system to improve performance in counter current filtration having both retentate channels and permeate channels wherein a solution is pumped through one of the channels and drawn through a membrane to one of the other channels to assist in positive pressure driven filtration by using the osmotic pressure, concentration, or preferential solubility difference between the retentate and permeate flow streams thereby increasing or altering the flux through the membrane separating the flow streams.
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公开(公告)号：US20230023076A1
公开(公告)日：2023-01-26
申请号：US17792853
申请日：2020-04-17
发明人： Mirva MUSTAKANGAS , Ismo JUVONEN , Janne KAIPAINEN , Teemu ELORANTA , Mika ILLI , Kari VÄNTTINEN
IPC分类号： B01D25/21 , B01D25/164 , B01D25/28
摘要： A filter plate frame assembly with a filter plate frame and a subframe housed within the frame, such that the subframe can be removed from the frame without removing the frame from the filter press. In this way, consumable components can be provided in connection with the subframe, which can be easily removed from the filter press. This, in turn, makes replacement of worn components faster, as the whole frame does not need to be removed from the filter press. An associated horizontal filter press and a method of replacing worn components of such a filter press is also provided.
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公开(公告)号：US11541356B2
公开(公告)日：2023-01-03
申请号：US16753026
申请日：2018-10-03
IPC分类号： B01D63/08 , B01D61/14 , B01D69/02 , B01D69/10 , B01D61/18 , C12M3/06 , A61M1/34 , C12M1/00 , C12M1/26 , B01D25/21
摘要： A disposable cell enrichment kit includes a crossflow filtration device configured to be disposed along a main loop pathway and to receive a process volume containing a biological sample and utilize crossflow filtration, via a micro-porous membrane, to retain a specific cell population in a retentate from the process volume and to remove a permeate including certain biological components from the process volume. The crossflow filtration device includes a laminated filtration unit that includes the micro-porous membrane, a first mating portion, a second mating portion, and a membrane support. The membrane support includes a first plurality of structural features that define a first plurality of openings, wherein the first plurality of structural features are coupled to the micro-porous membrane and provide support to the micro-porous membrane, and the first plurality of openings allow the permeate to flow through them after crossing the micro-porous membrane.
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公开(公告)号：US11253800B2
公开(公告)日：2022-02-22
申请号：US15969936
申请日：2018-05-03
发明人： Jürgen Sebastian
IPC分类号： B01D25/32 , B01D25/12 , B01D25/21 , B01D41/04 , A61J3/00 , A61M1/34 , B01D25/164 , B01D25/28
摘要： A plate for a filter press, a filter press, the use of such a filter press as well as a method of cleaning and sterilization of such a filter press. The plate for a filter press has a base body, consisting of a first material with a hardness H1 and having an outer circumferential surface, and a frame arranged on the outer circumferential surface, consisting of a second material with a hardness H2, where H2
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公开(公告)号：US20210316234A1
公开(公告)日：2021-10-14
申请号：US17225264
申请日：2021-04-08
申请人： Jürgen Berthold
发明人： Jürgen BERTHOLD , Hermann BERTHOLD
IPC分类号： B01D25/172 , B01D25/21 , B01D25/19 , B01D37/04
摘要： A filter press, including a housing, which receives a liquid to be filtered that contains particles to be separated off, and a pressing device arranged in the housing for pressing the liquid through a filter device, wherein the pressing device, which rotates about a vertical axis, has at least one cross-sectionally round pressing element which rotates about an axis of rotation situated at an angle to the vertical axis and which has an outer casing formed from an elastic material, by which the pressing element rolls on the filter device, wherein the filter device includes a filter and, upstream of the filter, a filter plate which has a plurality of apertures which are open toward the pressing element and each of which has a cross section reducing toward the filter.
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公开(公告)号：US10533796B2
公开(公告)日：2020-01-14
申请号：US15454479
申请日：2017-03-09
申请人： Larry Baxter , Eric Mansfield , Kyler Stitt , David Frankman , Skyler Chamberlain , Nathan Davis , Stephanie Burt , Steven Malone
发明人： Larry Baxter , Eric Mansfield , Kyler Stitt , David Frankman , Skyler Chamberlain , Nathan Davis , Stephanie Burt , Steven Malone
摘要： A method for thickening a cryogenic slurry is disclosed. The method comprises providing a cryogenic slurry flow path, a cryogenic liquid discharge path, and a filter medium between the cryogenic slurry flow path and the cryogenic liquid discharge path. The cryogenic slurry comprises a solid and a cryogenic liquid. The cryogenic slurry is fed into the cryogenic slurry flow path, generally tangential to the filter medium. This causes a portion of the cryogenic liquid to cross the filter medium into the cryogenic liquid discharge path as a cryogenic liquid discharge and the cryogenic slurry to thicken to produce a thickened slurry. The filter medium comprises a cryogenically-stable material such that adsorption of gases is inhibited, deposition of solids is prevented, and temperature-change induced expansion and contraction of the filter medium is optimized.
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公开(公告)号：US20190314765A1
公开(公告)日：2019-10-17
申请号：US16386470
申请日：2019-04-17
发明人： Todd BENSON , Marc PUGH , Jason BELL , Mark VANDER HOFF , Kelly JOHNSON , Jonathan BARTH , Bradford EAST , Cameron Gunter , Max PRENDERGAST
摘要： A filtration cassette including a multilaminate array of sheets including filter sheets alternating with permeate sheet members and retentate sheet members, and a cross-flow filter device comprising a multiplicity of stacked filtration cassettes of such type. The improvements associated with the filtration cassettes described herein include, but are not limited to, at least one of: reinforced inlet(s) providing for longevity and improved cleanability of the cassettes; spacer permeate screens to limit throughput restriction; stainless steel or otherwise stiffened permeate sheets to prevent movement and increase flux; and stainless steel permeate sheets that can be used with ultrasonic transmission to minimize fouling of the filter sheets and extend cleaning cycles. Advantageously, the filtration cassettes are more resistant to higher temperatures than the filtration cassettes of the prior art.
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公开(公告)号：US09975067B2
公开(公告)日：2018-05-22
申请号：US14418211
申请日：2013-07-25
IPC分类号： B01D29/05 , B01D25/164 , B01D25/21 , B01D25/30
CPC分类号： B01D29/05 , B01D25/1645 , B01D25/215 , B01D25/302
摘要： A membrane for a membrane filter plate, having an elastic compression face and a peripheral fastening means. The membrane displays an elastic compression face and a peripheral fastening means. An opening for a fluid communication into a filter chamber is configured in the membrane. The invention furthermore relates to an arrangement of at least two filter plates of which one filter plate is a membrane filter plate having a membrane. One membrane is fastened on the first filter plate by means of the peripheral fastening means such that a compression means chamber is formed between the membrane and the first filter plate. The second filter plate bears on the first filter plate such that a filter chamber is formed between the compression face of the membrane and the second filter plate. At the periphery of the filter plates, a duct is formed between the filter plates.
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