公开(公告)号：US20240216839A1

公开(公告)日：2024-07-04

申请号：US18557975

申请日：2022-04-29

Applicant: Inheriting Earth Limited

Inventor： Reuben D'Orton-Gibson ,  Michael Lawrance-Owen ,  Reuben Kettle Aiers ,  Fergal Feeney ,  Adam Root

IPC: B01D29/68 ,  B01D29/92 ,  B01D35/26 ,  D06F39/10

CPC classification number: B01D29/682 ,  B01D29/92 ,  B01D35/26 ,  D06F39/10 ,  B01D2201/084 ,  B01D2201/087

Abstract: A separator prevents microplastics from entering the environment by regenerating the pressure consumption of filters for removing microplastics in effluent from any source but in particular removing microfibers from domestic and commercial washing machine wastewater, industrial textile processing waste and roadside runoff. The separator separates microplastics from an effluent, and includes a chamber with an inlet and an outlet, a sieve structure forming a permeable barrier between the inlet and the outlet to filter the effluent, and a pump in fluid communication with the outlet of the chamber.

公开(公告)号：US11957999B2

公开(公告)日：2024-04-16

申请号：US16314286

申请日：2017-07-03

Applicant: BWT Holding GmbH

Inventor： Jürgen Johann ,  Anton Mairhofer

IPC: B01D29/62 ,  B01D29/23 ,  B01D29/66 ,  B01D29/68

CPC classification number: B01D29/682 ,  B01D29/23 ,  B01D29/66 ,  B01D29/688 ,  B01D2201/082 ,  B01D2201/29 ,  B01D2201/583

Abstract: A backflushing filter having an inlet, an outlet, and a drain; a filter that divides a housing into an inlet chamber that is connected to the inlet and an outlet chamber that is connected to the outlet; a backflushing device having a suction element arranged so that it is able to rotate around the filter on the inlet side of the housing with at least one suction opening that is oriented in the suction direction toward the filter for filter-cleaning purposes; a backflushing duct connected to a suction opening and the drain; and a rotating device which drives the rotational movement of the suction element around the filter when a pressure drop occurs in the backflushing duct; wherein when the pressure drop in the backflushing duct occurs, the rotating device drives the rotational movement of the suction element by the suction direction of the suction opening that is inclined relative to the radial direction of the suction element.

公开(公告)号：US11872507B2

公开(公告)日：2024-01-16

申请号：US17293546

申请日：2019-11-13

Applicant: BOLLFILTER NORDIC APS

Inventor： Robert Jellinggaard ,  Sigurd Ildvedsen

IPC: B01D29/68 ,  B01D29/35

CPC classification number: B01D29/682 ,  B01D29/35 ,  B01D29/688 ,  B01D2201/583

Abstract: A filter candle (1) in a backflush filter housing (2) has a cylindrical filter wall (3) and includes an internal hollow flushing element (8) divided into a flushing section (9) having a flushing port (10) for backflushing and a turbine section (11) for rotation of the flushing element. The flushing section tapers from a first end to a second end. The turbine section tapers from a first end to a second end and has turbine blades arranged on the outside. The first end of the flushing section is connected to the first end of the turbine section at a transition position (21). An outside of the flushing element forms a cylindrical restriction at the transition position so that the part of the cylindrical filter wall of the filter candle extending at the turbine section may be backflushed by means of fluid also driving the turbine.

公开(公告)号：US20210261440A1

公开(公告)日：2021-08-26

申请号：US17130487

申请日：2020-12-22

Applicant: OZONO POLARIS, S.A. DE C.V.

Inventor： David Ross MACKAY PETT

IPC: C02F1/28 ,  B01D29/68

Abstract: The invention provides methods and systems for washing adsorptive media with minimal water consumption. More specifically, the invention provides methods and systems for in situ regeneration and/or sanitization of adsorptive media, such as activated carbon, using back-and-forth washing.

公开(公告)号：US20210253462A1

公开(公告)日：2021-08-19

申请号：US17246737

申请日：2021-05-03

Applicant: SHANGHAI TECHASE ENVIRONMENT PROTECTION CO., LTD.

Inventor： Gangfan SUN ,  Daoguang LIU ,  Wenbiao ZHANG

IPC: C02F9/00 ,  B01D29/64 ,  B01D29/03 ,  B01D29/56 ,  B01D29/35 ,  C08L59/02 ,  B01D29/01 ,  B01D29/46 ,  B01D29/68 ,  B01D29/90 ,  B01D36/02 ,  C02F11/122 ,  C02F11/125 ,  C08J5/00 ,  C08L71/02

Abstract: The present invention provides a multi plate screw press sludge dewatering machine and a helical shaft thereof. The multi plate screw press sludge dewatering machine includes fixed rings, movable rings, the helical shaft, a sludge inlet tank and a sludge discharging tank; the helical shaft adopts a variable diameter variable pitch helical shaft, a lead angle arrangement sequence of a helical blade of the whole helical shaft is gradual reduction from the sludge discharging tank to the sludge inlet tank, and the lead angle arrangement sequence is gradually reduced from 16°-22° to 6°-14°; a pitch of the helical shaft is gradually increased along a direction from the sludge inlet tank to the sludge discharging tank; a diameter of a shaft body of the helical shaft is gradually increased along with a direction of the sludge discharging tank from a ⅓ position of a shaft length; and blockage prevention plates are arranged on two sides of the bottom of the helical blade. The helical shaft in the present invention is specially designed, so that the pitch is more reasonable, a helical angle is gentler, frictional resistance when sludge passes through the helical shaft may be effectively reduced, and phenomena of shaft blockage and shaft sticking of the sludge may be reduced.

公开(公告)号：US20210170312A1

公开(公告)日：2021-06-10

申请号：US16769296

申请日：2018-11-16

Applicant: HYDAC PROCESS TECHNOLOGY GMBH

Inventor： Bernhard SCHLICHTER ,  Jörg Hermann GERSTNER ,  Albert KAINTS

IPC: B01D29/68 ,  B01D29/52

Abstract: A filter device, comprising a filter housing (1) having a fluid inlet (8) for unfiltered matter and having a fluid outlet (9) for filtrate and having at least one one-piece or multi-part filter insert (05, 17) held in the filter housing (1), which filter insert (15, 17) can be cleaned using a backwash device (25) having at least one backwash element (31) in counter flow to the direction of filtration, which backwash element can be moved along the inside of the relevant filter insert (15, 17) by means of a fluid-conveying drive shaft (29) of a rotary drive (69, 71), wherein the individual backwash element (31) has, at the end adjacent to this inside, at least one gap-shaped passage opening, which extends in parallel to the axis of rotation of the drive shaft (29) and which opens into a flow chamber connected to the drive shaft (29) in a fluid-conveying manner, is characterized in that at least one further backwash device (27) having at least one further backwash element (31) is present, in that the fluid-conveying drive shaft (29) is divided into chambers (73, 75) separated from each other, and in that in each case one backwash element (31) of one backwash device (25) is connected to one of the chambers (73, 75) and the other backwash element (31) of the other backwash device (27) is connected to another chamber (73, 75).

公开(公告)号：US10967406B2

公开(公告)日：2021-04-06

申请号：US16141749

申请日：2018-09-25

Applicant: JCT Analysentechnik GmbH

Inventor： Thomas Grechshammer ,  Berndt Vancl ,  Günter Zimmel

IPC: B08B3/04 ,  G01N1/22 ,  B01D29/68

Abstract: A backflush device for filters of a sampling system having a connecting element, which is passed through by a retrieval line that is connectable to the filter and which has at least one backflush line ending in the retrieval line, having a check valve arranged at or in the backflush line, where the check valve is connectable to a pressure line for a pressurized flush medium such that in the case of an open check valve, the backflush line may be flowed through by the flush medium in a backflush direction oriented towards the retrieval line, and where the backflush line ends in the retrieval line at an obtuse angle, observed in the direction of the backflush direction.

公开(公告)号：US10905981B2

公开(公告)日：2021-02-02

申请号：US14474534

申请日：2014-09-02

Applicant: Alfa Laval Corporate AB

Inventor： Charles G. Dannemann

IPC: B01D29/68 ,  C02F1/00 ,  B01D29/39 ,  B01D35/10 ,  B01D29/64 ,  C02F1/56 ,  C02F1/52

Abstract: A backwash header for a cloth filter includes a body having a length, a diameter, first and second ends, a longitudinal axis, and an exterior surface, the body defining at least one internal cavity. The body includes at least one suction slot sized to allow fluids and solids to enter the internal cavity from outside of the exterior surface. A structure is attached to a portion of the exterior surface of the body around and extending away from the suction slot to form an open-ended chamber defined by the structure and a portion of the exterior surface near the suction slot. The structure allows fluids and solids to enter the open-ended chamber and then the suction slot and cavity from a material being cleaned. Cloth filters and methods of treating water and wastewater using the backwash headers and cloth filters.

公开(公告)号：US10737950B2

公开(公告)日：2020-08-11

申请号：US15688896

申请日：2017-08-29

Applicant: Tyler Bennett ,  Adam Sabourin

Inventor： Tyler Bennett ,  Adam Sabourin

IPC: C02F1/00 ,  B01D29/56 ,  B01D29/60 ,  B01D29/66 ,  B01D29/90 ,  B01D35/02 ,  B01D29/11 ,  B01D29/23 ,  B01D29/68 ,  A01G25/16 ,  C02F1/66 ,  C02F1/50 ,  C02F103/20 ,  E03B7/07

Abstract: The present invention provides an improved filtering system and method for filtering effluent water for use in irrigation and other applications. The improved filtering system offers significant advancements to the flow rate, efficiency, and reliability of effluent water filtration. The present invention provides systems and methods for filtering of effluent water with a multi-staged filter system, which are self-cleaning, requiring less down time and nearly continuous filtration function.

公开(公告)号：US10688418B2

公开(公告)日：2020-06-23

申请号：US15536740

申请日：2016-01-04

Applicant: Jain Irrigation Systems Limited

Inventor： Abhijit Bhaskar Joshi ,  Ajit Bhavarlal Jain

IPC: B01D29/00 ,  B01D29/64 ,  B01D29/68 ,  B01D29/11 ,  C02F1/00 ,  B01D29/01

Abstract: There is disclosed an apparatus for cleaning circular filter screens comprising at least one suction chamber fitted to a conduit of the dirt collection conduit system extending along a central axis of the housing of the filter screen. The suction chamber comprises a central nozzle through which fluid is forced to flow by virtue of a pressure differential between the outer surface of the filter screen and an extremity of the dirt collection conduit system. The fluid flow through the central nozzle creates a low pressure regime near the mouth of the central nozzle such that fluid is forced through a plurality of peripheral suction nozzles arranged around the central nozzle from the outer surface of the filter screen to the inside of the suction chamber, thereby forcing the dirt and retentate accumulated along the inner surface of the filter screen to be washed away.