Abstract: The invention concerns a module for filtering media. More particularly, the invention concerns a module for filtering fluids and including one or more filter cells stacked on top of one another. The invention also relates to an installation set for the installation of at least one such filter module in a filter housing, as well as to a filter device with a filter housing, in which the filter module or the filter modules is/are installed together with the installation set.

Abstract: The present invention realizes electronic commerce by providing a reception section that receives product information and service information and a barcode formation section that forms a barcode based on the received information, displaying the barcode formed by the barcode formation section on a display section and allowing a barcode reader provided at a shop terminal, etc. to read this barcode.

Abstract: A filter cartridge assembly, and method for constructing the same, wherein the assembly has at least two axially adjacent filter cells separated by a spacer ring and a lifting means having a mounting portion with an opening formed therein for surrounding the outer periphery of the spacer ring. The lifting means also includes opposed elongated arms which extend radially outwardly from the central mounting portion and have gripping portions for facilitating lifting the filter cartridge assembly.

Abstract: A module filter has a container with an admission for a non-filtrate and a discharge for the filtrate. A filter module is arranged in the container and has several stacked, disc-shaped filter cells of filter material having an inner space. The filter cells have central openings forming a central channel connected with the inner space. The central channel is connected to the admission. The container has a space surrounding the filter cells and connected with the filtrate discharge. Circular disc-shaped drainage support bodies are arranged between the filter cells and extend approximately over the entire surface area of the filter cells. The drainage support bodies have drainage channels that extend toward their outer rim. The drainage support bodies have projections projecting axially away from the drainage support bodies and extending radially. Between the projections intermediate spaces are defined which form the drainage channels and remove the filtrate.

Abstract: A high shear rotating disc filter having a hollow interior and constructed of a porous material such as sintered metal or ceramic with finely structured openings. The disc is mounted and secured onto a hollow shaft. The hollow shaft is connected to a vacuum source, external to the filter, that allows for the passage of the filtrate to a receiver. There are elongated slots in the wall of the shaft which provide the passage of filtrate from the disc. The shaft provides rotational force for the discs.

Abstract: A laminated modular water filter includes superposed annular plates. A filter unit is disposed between each adjacent pair of the annular plates. The annular plates include a top plate, a bottom plate, a plurality of intermediate plates, and at least one flow-guiding plate sandwiched between two of the intermediate plates. Each of the top plate, the intermediate plates, and the bottom plate has an annular outer passage unit in fluid communication with a curved outer passage unit in the flow-guiding plate. Dirty water is introduced into two side openings in the top plate, and flows into central holes in the annular plates via the filter units so as to form filtered water. Solid particles in the dirty water are guided into two side openings in the bottom plate via the annular outer passage units and the curved outer passage unit.

Abstract: The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.

Abstract: The invention relates to a filter module, whose casing unit comprises a media-tight sleeve (30, 30)′ and two retaining rings (32, 34, 34)′, the sleeve (30, 30)′ being fixed to the retaining rings (32, 34, 34′) in a media-tight manner and each retaining ring (32, 34, 34′) being mounted on an adapter (24, 26, 26′). The sleeve (30, 30′) consists of a flexible and/or elastic material. Said sleeve prevents a contamination of the filter housing. The invention also relates to an installation kit for installing at least one filter module of this type in a filter housing and to a filter device.

Abstract: The invention relates to a filter element for removing moisture contained in a material to be dried and for creating a filter cake of the material to be dried on the filtering surface of the filter element. According to the invention, the filtering surface (1. 6) the filter element (11) is composed of at least two parts (2,3;7,8) where mutually different filtering conditions can be created in order to form a filter cake containing at least one component to be filtered on the whole filtering surface (1,6) of the filter element (11).

Abstract: A positive pressure disc-type filtration apparatus (10) including a collection trough (40) internal to the cylindrical pressure vessel housing the filter discs (24). The collection trough (40) is entirely disposed within the cylinder of the pressure vessel (12) and configured and located to receive and direct filter cake removed from the discs (24) and then reslurried and sluiced toward the center of the trough using jets of liquid (32), to be discharged longitudinally centrally through a single outlet extending downwardly from the trough and through the wall of the pressure vessel (12). A method of filtration is also disclosed.

Abstract: A filter or screen for a membrane filter. The filter or screening discs being mounted on a hollow shaft made up of several shaft elements.

Abstract: A filter/screening disc for membrane filtration includes a base structure connected to a hollow shaft and to which screening/filter elements are secured. The filter/screening disc is made up of two halves.

Abstract: The present invention provides filters comprising supports (55) that are relatively flat. They may have knife seals (54, 56) or convention edge seals and porous fibrous media (58) is positioned there between and methods of manufacturing filters. The media may also be relatively flat providing for a self supporting non-lenticular filtration structure.

Abstract: A laminated modular water filter includes a top plate, a bottom plate and a plurality of superposed intermediate plates disposed between the top and bottom plates. Each adjacent pair of the top, intermediate and bottom plates are interconnected removably, and define an accommodating space therebetween, within which a filter unit is received fittingly. Each of the top and bottom plates has a central hole which is in fluid communication with central holes in the intermediate plates, and two side openings which are in fluid communication with a plurality of annular outer passages units in the intermediate plates that are in fluid communication with the accommodating spaces. Each of the filter units includes two filter films interconnected fixedly along outer peripheries thereof, and a filter net disposed between the films so as to define an annular filtered-water passage between the films that is fluid communication with the central holes.

Abstract: A high shear rotating disc filter having a hollow interior and constructed of a porous material such as sintered metal or ceramic with finely structured openings. The disc is mounted and secured onto a hollow shaft. The hollow shaft is connected to a vacuum source, external to the filter, that allows for the passage of the filtrate to a receiver. There are elongated slots in the wall of the shaft which provide the passage of filtrate from the disc. The shaft provides rotational force for the discs.

Abstract: The present invention provides a device for the filtration of fluids using porous fibrous filtration media. The present invention comprises a central support layer, one or more layers of porous media mounted on each side of the central support layer and an elastomeric seal on the outer edge of the support/media that forms a liquid tight seal so that all fluid must flow through the media before reaching the central support layer.

Abstract: A filter device for extruders and injection moulding machines designed to process thermoplastics, comprising filter elements that are fitted in at least two separate ducts of a housing between at least one main admission duct and one main exit duct and are interchangeably mounted in sieve carrier bolts in sieve openings that can be moved inwards and outwards with said sieve carrier bolts in the respective bore hole of the housing. At least one locking mechanism is provided in the vicinity of the main admission duct upstream from the sieve carrier bolts. When in a flow position, the locking mechanism does not impede the flow of plastic from the main admission duct to the filter elements.

Abstract: A filter sector for a rotating filter disc has filtrate conduits for filtrate resulting from filtration which is discharged at the more narrow end of the filter sector. The filtrate conduits are outwardly defined by a filtrating layer permeable to the filtrate. The filter sector has at least one element provided with a profiling forming the filtrate conduit. The profiled element itself forms the filtrating layer because the profiled element has a perforation permeable to the filtrate.

Abstract: In a filter apparatus 1, a central filter rod 6 is arranged in the interior 14 of a filter housing 2, the diameter d of which filter rod tapers in the direction of flow of the plastic melt. On the filter rod 6 are arranged filter discs 7 which are parallel to one another and have outer and inner diameters of equal size. The filter apparatus 1 operates as a continuous-flow filter apparatus in which the plastic melt flows in via an intake 4 and flows out via an outlet 5. A filter housing wall inner surface 3 tapers in the direction of flow of the plastic melt, so that a gap width h.sub.a (x) between a filter disc outer rim 8 and the filter housing wall inner surface 3 decreases in the direction of flow of the plastic melt.

Abstract: Filter apparatus for filtering contaminants from a fluid, such as machine tool coolant, are disclosed. One filter apparatus includes a filter drum unit having a generally cylindrical open perforated support sheet with a cylindrical screen element mounted thereabout. Circumference varying mechanisms, such as turnbuckles, are connected relative to the support plate to vary the circumference of the support plate and the tautness of the screen element. A disc filter assembly having a mandrel and fluidly attached annular disc filter elements is also described. Each annular disc filter element has an inner structure with concentric ribs forming concentric grooves therebetween which are connected to radially extending grooves. A screen element is supported by the ribs so that the microscreen will not tear while allowing filtering of fluid into the grooves which are in fluid communication with the mandrel.

Abstract: A disc filter for separation of liquids from suspensions, in particular fiber stock suspensions, having several filter elements, in particular sector-shaped filter elements, which have a frame and filter areas mounted on both sides, over which a filter medium is mounted, with the filter areas having a lower-lying and higher-lying sections that form area filtrate channels, and having a center core which is provided with core filtrate channels. The filter elements contain collecting channels that receive and collect filtrate flow from the area filtrate channels formed by the lower-lying and higher-lying sections for delivery of the collected filtrate.

Abstract: A porous ceramic filter obtainable from a thin and flat green filter material, wherein round components are punched out of the green material and stacked, leaving at least one hollow interior that can communicates with an outlet, and the stack is then sintered together into a homogeneous unit. The green material is produced by casting, the separate components are punched out of it in the form of two flat disks (2 & 3) and a ring (4) with the same outside diameter, joined subject to pressure and leaving the interior (1), and sintered into a homogeneous unit.

Abstract: A disc filter used in the pulp and paper industry meets modern requirements by axially dividing the tank and shaft (with the flow channels) into at least two separate and distinct portions, so that the treatment of pulp in several different stages using the same disc filter is possible.

Abstract: A pressure filter has a fluid compartment with a fluid inlet and at least one filter surface in the fluid compartment having a plurality of apertures, one side of the filter surface bounding the fluid compartment and the other side thereof bounding a filtrate compartment having a filtrate outlet. The backwashing system includes a backwashing head sweeping over the filter surface and sealing a part thereof with respect to the fluid compartment. The backwashing head restricts a backwashing compartment having at least one suction chamber open in a slot-like manner to the filter surface and having connected thereto a reject drain. The filter includes two filter surfaces located in the front side range of a hub. The hollow shaft is rotatably supported within the hub. The hollow shaft is coupled at its front sides to a respective backwashing head and at its cylindrical part to a drive means located outside of the fluid compartment.

Abstract: Filter for continuous filtration of liquids containing solids in a closed cylindrical vessel with a pressure difference between the liquid to be filtered and the filtrate, with disks which are formed by hollow filter sectors and supported at a distance from one another on a driven horizontal hollow shaft normal to the shaft, with filter beds on both sides of every filter sector and a hollow space located between the latter allowing the filtrate to flow out through the hollow shaft, and with devices which are movably pressed against on both sides of every filter disk for removing and discharging solids from the filter beds forming the outer sides of the filter disks and for cleaning these filter beds, wherein every device for removing and discharging solids from and cleaning the filter beds is formed by a closed hollow box unit which is completely surrounded by the liquid to be filtered and has a plurality of chambers which are separated from one another, wherein every chamber has at least one inlet gap compre

Abstract: A stacked membrane disk module has a number of membrane disks interleaved with seal rings and includes a biasing subassembly for maintaining a compressive force between the membrane disks and interleaved seal rings so that the module can be repeatedly pressurized/depressurized. The membrane disks preferably include a central first aperture and a pair of second apertures which are radially spaced from the central first aperture. These apertures will thus be respectively registered when a number of such membrane disks are stacked between a pair of end plates so as to establish a central fluid passageway and a pair of second fluid passageways. A rigid perforated tube is positioned within the central fluid aperture and is connected to the end plates so that at least one of the end plates is capable of being axially displaced relative to the perforated tube. A biasing member (e.g.

Abstract: A tandem waterwheel type trommel apparatus having a laterally-disposed drain-off drum and a laterally-disposed classifying drum combined through a short pipe to form a main body, which is rotatably disposed on a base and is connected to a drive unit. A front end plate and a rear end plate each having a doughnut-like shape are respectively provided at the front and rear ends the drain-off drum. A plurality of buckets are provided in the drain-off drum, and gutters are provided on the back side of upper end portions of the buckets. The gutters communicate with drain holes formed in the rear end plate. A fixed shoot is provided which extends through the drain-off drum to the classifying drum. The classifying drum has a cylindrical portion and a truncated-cone portion. A circumferential member of truncated-cone portion is made porous while a circumferential member of the cylindrical portion is formed of a wire netting. A screw is provided on the outer circumferential surface of the cylindrical portion.

Abstract: A filter component having a substantially rigid support core and a filter element. The core includes a projecting first anchoring rib and the filter element (which is substantially flat in a repose position) has first and second spaced end panels. At least the first end panel of the element is attached to the anchoring rib when the element is mounted on the component. Element-component attachment is, in one aspect, by panel-mounted hook-like devices which attach to the rib. Attachment devices may also be embodied as clip mechanisms or rivet-like fasteners. A retaining tab on the component platform fits into a tab notch on the filter element when the element is mounted on the component.

Abstract: A filtration apparatus specifically intended for removing particulate contaminants from commercial laundry waste water has at least one porous mesh-like filter bag coupled between an inlet manifold for receiving waste water containing particulate contaminants and an outlet manifold for discharging the particulate contaminants separated from the waste water. The filter bag is agitated by a paddle, so as to prevent the mesh-like material of the filter bag from being clogged. Also disclosed is a method for filtering waste water containing particulate contaminants.

Abstract: An apparatus for filtering liquids, especially for recovering fibers from white water, includes rotatable filter discs at least partially immersed in the liquid to be filtered, and a shaft wall connected to the discs forming a circular cylindrical filtrate chamber, which extends centrally through the discs. A rigid stationary partition wall extends in the filtrate chamber dividing the latter into at least two axial channels. The partition wall is spaced from the shaft wall and arranged such that all of said axial channels receive various fractions of filtrate, respectively. Filtrate discharge means is provided for discharging said fractions of filtrate respectively from the respective axial channels, such that the pressure prevailing in the filtrate of each channel is at least substantially as high as atmospheric pressure.

Abstract: A fluid filter comprising a housing having a central aperture formed in the bottom thereof, a filter element disposed in the housing and arranged to receive a flow of fluid to be filtered from an upstream side of the element to a downstream side thereof, and a fluid inlet and outlet manifold disposed at the bottom of the housing in communication with the central aperture for providing fluid inlet and outlet communication through said aperture with a fluid inlet and a fluid outlet.

Abstract: A disc filtering apparatus for filtering liquids, such as fiber pulps suspensions, includes hollow filter discs, each of which has two opposed side walls of filter material. A plurality of circumferentially spaced support arms extend within each hollow filter disc, for supporting the side walls of filter material. Between the support arms, each side wall of filter material is supported by at least one wire member extending substantially along the filter disc and attached to the support arms.

Abstract: An apparatus for filtering liquids, such as fibre pulp suspensions, includes annular hollow filter discs each of which has two annular liquid pervious, opposed walls covered with filter material, spray nozzle means for cleaning the filter material, and means providing relative movement between the filter material and spray nozzle means. The annular opposed walls of each filter disc are only attached to each other at their radially outer ends, whereas they are spaced from each other at their radially inner ends, such that an annular opening is defined between the interior of the filter disc and a filtrate chamber extending centrally through the filter discs. The spray nozzle means extends from the filtrate chamber through the annular opening into each filter disc. As a result, an extremely pure fine fraction can be produced, clogging of the filtering material is efficiently counteracted, and the operative part of the filter material can be increased.

Abstract: A disk filter for filtering mat forming suspensions is provided with a hollow shaft for receiving a flow of fine fraction created by hydrostatic pressure difference between the suspension to be filtered and the fine fraction in the hollow shaft. According to the invention, each disc is provided with a number of fine fraction chambers communicating with the interior of the hollow shaft via respective holes in the circumferential wall of the shaft. Each chamber is arranged, such that it functions as a dropleg during movement upwards, with the result that the coarse particle (fibre) concentration of the created coarse fraction is increased.

Abstract: A filtration system for use in a settling tank includes a star shaped filter having equally spaced radial panels with the filter septums forming the downwardly extending sidewalls of each panel or compartment. The framework of the filter allows radial removal of the filter septums for cleaning and maintenance. A unique pressurized wet seal seals the filter to a clean liquid vacuum delivery duct and can also seal the system pump in the settling tank to the vacuum duct.

Abstract: A disk filter for filtering solids from free-flowing material includes a hollow shaft and a plurality of filter segments arranged about the hollow shaft, with each filter segment including a top part and a bottom part connected to the top part such as to define a passageway for the material to be filtered. At the radial inner end face, each filter segment is detachably secured to the hollow shaft via an interposed connector assembly which includes two pipes telescopically nested within each other and detachable secured with each other via a bayonet lock or other detachable securement so as to allow each filter segment to be removed and attached from the outer end face of the filter segment. One of the pipe is mounted to the filter segment via a truncated cone shaped intermediate member and the other pipe is attached to the hollow shaft.

Abstract: A rotating disc filter has a plurality of sectors removably mounted on drainage and support structures which are fixed on a rotating hub. The drainage and support structure has flow channels and internal baffles which serve to trap filtrate to keep filtrate from re-wetting filter cake built up on the sectors prior to removal of the filter cake from the sectors.

Abstract: A filtration system for use in a settling tank includes a star shaped filter having equally spaced radial panels with the filter septums forming the downwardly extending sidewalls of each panel or compartment. The framework of the filter allows radial removal of the filter septums for cleaning and maintenance. A unique pressurized wet seal seals the filter to a clean liquid vacuum delivery duct and can also seal the system pump in the settling tank to the vacuum duct.

Abstract: A rotary filtration apparatus is provided, of the type which includes a multiplicity of membrane packs arranged in a stack on a rotor frame, which facilitates replacement of membrane packs. A membrane pack assembly (16, FIG. 1) includes a multiplicity of membrane packs arranged in a stack between a pair of stack plates (70, 72), and held in compression by several tension members (80) spaced about the pack and coupled to the plates. The rotor frame (14) has top and bottom frame plates (50, 52) and a plurality of tying members (40) tying peripheral portions of the plates together. A sufficient number of the tying members are removable to leave an opening in the frame periphery that is large enough to allow the precompressed membrane stack assembly (16) to be moved radially into the rotor frame, at which time the removed tying members are replaced. The membrane packs can be stacked within a group of tying members (234, FIG. 10 ), and can be compressed by a compressor (280, FIG.

Abstract: A rotary filtration apparatus is provided, of the type which includes a multiplicity of membrane packs arranged in a stack on a rotor frame, which facilitates replacement of membrane packs. A membrane pack assembly (16, FIG. 1) includes a multiplicity of membrane packs arranged in a stack between a pair of stack plates (70, 72), and held in compression by several tension members (80) spaced about the pack and coupled to the plates. The rotor frame (14) has top and bottom frame plates (50, 52) and a plurality of tying members (40) tying peripheral portions of the plates together. A sufficient number of the tying members are removable to leave an opening in the frame periphery that is large enough to allow the precompressed membrane stack assembly (16) to be moved radially into the rotor frame, at which time the removed tying members are replaced. The membrane packs can be stacked within a group of tying members (234, FIG. 10), and can be compressed by a compressor (280, FIG.

Abstract: A fluid filter including a housing defining a fluid inlet and a fluid outlet and a filter element defining an upstream surface communicating with the fluid inlet and a downstream surface communicating with the fluid outlet, the filter element including at least one group of disk-like elements including at least one element of relatively fine porous material, having disposed on both sides thereof disk like elements of a relatively coarse porous material, each of the at least one groups having disposed on both sides thereof a grooved spacer element.

Abstract: An apparatus for multiple fluid phase separation (10) includes a housing (12) having a second chamber (21) positioned above a first chamber (19). A plurality of filter disks (22) are mounted upon a rotatable vertical shaft assembly (24) in spaced stacked relation within the first chamber (19). The shaft assembly (24) includes a first interior channel (30) and a second interior channel (32). A bulk solution including two immiscible phases is introducted, under pressure, into the first chamber (19) through an entry pipe (33). The heavier phase is filtrated through the disks (22), enters the first interior channel (30), and is channelled to an exit port (32). Bulk solution having a reduced proportion of heavier fluid phase flows through radial openings (96) in the shaft assembly (24) located between the disks (22) into the second interior channel (32) and up into the second chamber (21).

Abstract: A nonclogging rotary disk filter is disclosed. The invention has relief holes provided in rotatable disks such that oil, other liquids, and gases may be separated from a liquid while the disks are rotated at high speeds. The relief holes are located close to the rotatable shaft supporting the disks. When the disks are rotated at high speeds, lighter liquids, oil, and gas bubbles tend to migrate to the area near the shaft which has relatively low centrifugal forces. In a gravitational field, the relief holes allow the lighter liquids, oil, and gas bubbles to migrate upwardly through the disks for removal. The disks are rotated fast enough to establish a barrier layer in a liquid over a working area of the disk surface having a surface velocity greater than 15 feet per second.

Abstract: In a causticizing process for separating at least white liquor and lime sludge out of the process, filters in the form of discs or drums are arranged. The filtrations take place under positive pressure and the filters are arranged in a closed system. Such a pressure filter can also be arranged for the separation of sludge.

Abstract: A cross-flow type filter system includes a filter body divided into an inner primary chamber and an outer secondary chamber by a partition for fixing a plurality of flat filter media in parallel with each other, a rotor located within said primary chamber and adjacent to the surfaces of said filter media. The rotor is rotatable about a shaft extending therethrough and vertical with respect to the surfaces of the media, and allowes a liquid to flow in a direction parallel with the shaft. The system also includes a feed inlet passage provided to the primary chamber at a position adjacent to the shaft, a feed inlet passage located at a position around and adjacent to the media, and a filtrate outlet passage provided to the secondary chamber.

Abstract: A spacer for guiding flowing medium, especially in apparatus for filtering and separating flowing medium via reverse osmosis and ultrafiltration. The spacer has a central hole that essentially serves for the clamping together of a plurality of disk-like spacers. A filter element is disposed between each two spacers, with flowing medium flowing about both sides of the filter element. To reduce pressure loss in the flowing medium, a plurality of spaced-apart openings through which flowing medium passes are disposed about the central hole of the spacer.

Abstract: A plate-type filter that is provided with a sealing element that is disposed in the flow path of liquid that is to be filtered and seals off the in-flow region relative to the filling space of the filter housing. The sealing element is movable into its sealing position under the pressure of in-flowing liquid. The sealing element is therefore in the sealing position only when liquid is flowing in. When the filter elements are rotated for centrifuging off the filter cake, the sealing element is no longer in its sealing position due to the absence of liquid pressure, so that the sealing element is not stressed during the centrifuging process.

Abstract: A rotatable filter assembly comprises a rotor in a container for fibre suspension. The center of the rotor is formed by axial discharge tubes into which hollow filter elements, forming annular filter discs open. A collecting hopper extends into the center of the filter assembly. The filter elements keep separately, at least during part of the rotation turn, a lower pressure inside than outside.

Abstract: The present invention sets forth an improved cell type filter cartridge in which the individual cells contain a separator disc having stiffening members formed at the central aperture of the cell and connected to a plurality of the separating ribs in spaced relation to each other. The coaction of the two or more discs with the separator ribs provides for a rigid, box-like structure of the ribs to impart a substantial cantilevered strength to the ribs. Additionally, at least one of the stiffening discs is positioned at or near the ends of the separator ribs to act as a load-bearing surface to prevent media intrusion of the filtering medium and thereby maintain the area of the flow path of the filtered liquid as it passes through the central aperture of the disc.

Abstract: The proposed plate filter is provided for filtering liquids, such as wine, beer, or liquid chemicals, and is provided, in a tank, with plate-like filter elements that are disposed one above the other, and with a central hollow shaft. Also provided is at least one vertical feed line from which feed channels branch off to the filter elements. The feed line is located in the inner region of the filter elements, and the radially arranged feed channels are directed from the inside outwardly toward the filter elements.