UNIVERSAL FILTER

A filter element for a paint sprayer having a feed line includes a core defining a first end, a second end, and a central portion extending along an axis between the first end and the second end. The central portion includes a central aperture closed at the first end and open at the second end and a plurality of openings that extend through the core to the central aperture. A mesh member surrounds the central portion and an adapter is coupled to the second end. The adapter includes a flowpath therethrough, an outer cylindrical surface, and an annular surface. The annular surface is operable to engage an end of the feed line such that the adapter is operable to form an axial seal between the adapter and the feed line. 1. A filter element for a paint sprayer having a feed line , the filter element comprising:a core defining a first end, a second end, and a central portion extending along an axis between the first end and the second end, the central portion including a central aperture closed at the first end and open at the second end and a plurality of openings that extend through the core to the central aperture;a mesh member surrounding the central portion; andan adapter coupled to the second end and including a flowpath therethrough, the adapter including an outer cylindrical surface and an annular surface, the annular surface operable to engage an end of the feed line such that the adapter is operable to form an axial seal between the adapter and the feed line.2. The filter element of claim 1 , wherein the core includes a threaded portion that interconnects an outermost end of the plurality of openings.3. The filter element of claim 1 , wherein the mesh member wraps around the core portion and defines an overlap portion that extends along the axis between the first end and the second end.4. The filter element of claim 1 , wherein the mesh member includes a first plurality of apertures having a first size and a second plurality of apertures having a second size ...

FILTRATION DEVICE AND METHOD

Embodiments of the present invention relate to a filtration device for use in filtration of a liquid, and disclose: a liquid receptacle having an open end and a closed end; a plunger body moveable at least partially within the liquid receptacle along an axis said axis extending between the open and closed ends, said plunger including a filtrate chamber in fluid communication with the liquid receptacle via a fluid filtering path and a filter disposed in the filtering path, and the device further including a slidable seal for inhibiting or preventing fluid flow across the seal during said plunger movement; wherein said seal includes a first skirt depending from the plunger at one end of the first skirt, said first skirt having an outer surface which in use slidably and sealingly abuts the vial, and having, at least in an uncompressed state, a generally annular separation between the skirt and the plunger body, which separation extends generally parallel to the axis. A second skirt, overlapping the first skirt, is disclosed also. 1. A filtration device for use in filtration of a liquid , comprising:a liquid receptacle including an open end and a closed end;a plunger body moveable at least partially within the liquid receptacle along an axis said axis extending between said open and closed ends, said plunger including a filtrate chamber in fluid communication with the liquid receptacle via a fluid filtering path and a filter disposed in the filtering path, and the device further including a slidable seal for inhibiting or preventing fluid flow across the seal during said plunger movement; whereinsaid seal includes a first skirt depending from the plunger at one end of the first skirt, said first skirt including an outer surface which in use slidably and sealingly abuts the vial, and including, at least in an uncompressed state, a generally annular separation between the skirt and the plunger body, which separation extends generally parallel to the axis.2. The filtration ...

PRETREATMENT APPARATUS FOR REMOVING PITH FROM CORNSTALK, PULP MANUFACTURING METHOD USING CORNSTALK, AND PAPER MANUFACTURING METHOD USING CORNSTALK PULP

A pretreatment apparatus for removing pith from cornstalks and separating husks therefrom includes a casing that receives cornstalks in a free-fall manner through an upper side thereof and allows the corn stalks to be discharged through a lower side thereof, and a rotor inserted into the casing and rotating inside the casing to hit cornstalk chips. The rotor includes a shaft inserted into the casing to be rotated by external force, a cover member holding the shaft so as to allow rotation of the shaft therein and connected to the entirety or part of an open upper side of the casing, and a hitting unit formed on a circumference of the shaft and hitting the corn stalks input into the casing. 1. A pretreatment apparatus for removing pith from cornstalks and separating husks therefrom , comprising:a casing which receives cornstalks in a free-fall manner through an upper side thereof and allows the corn stalks to be discharged through a lower side thereof; and a shaft inserted into the casing to be rotated by external force,', 'a cover member holding the shaft so as to allow rotation of the shaft therein and connected to the entirety or part of an open upper side of the casing, and', 'a hitting unit formed on a circumference of the shaft and hitting the corn stalks input into the casing., 'a rotor inserted into the casing and rotating inside the casing to hit cornstalk chips, the rotor comprising2. The pretreatment apparatus of claim 1 , wherein the hitting unit comprises a plurality of plates disposed in an axial direction of the shaft claim 1 , and a plurality of bars disposed along an edge of each plate.3. The pretreatment apparatus of claim 2 , wherein the hitting unit comprises a hitting rib detachably attached to the bar and hitting the cornstalks falling through the lower side of the casing.4. The pretreatment apparatus of claim 3 , wherein the bar or the hitting rib has a curved section.5. The pretreatment apparatus of claim 2 , wherein the shaft is connected to a ...

Screen Basket Optimized For Removal Of Stickies From Adhesives-Contaminated Recyclable Fiber

A screen structure which is unusually effective at removing stickies from recyclable fiber but is tolerant of substantial swings in throughput which result in variations in the flow velocity through the screen—slot velocity. One example of the screen structure is created by forming a very large number of similarly shaped vanes then locking them into a ring structure to form a cylindrical screen basket but equivalent surface configurations can also be formed into sheet stock. 1. A method for screening recycled pulp comprising the steps of:fiberizing and suspending the pulp in an aqueous liquid;pressurizing said aqueous liquid;passing said aqueous liquid containing said fiberized and suspended pulp to one screen having:a metallic screen basket for screening of stickies having a supply side surface approximating that of a right circular cylinder having an axis “A”, a circumference “C” and a diameter “D”, said surface comprising a plurality of sequences of facets, each sequence comprising a generally circumferentially extending facet, an upstream generally diametrally extending facet adjacent thereto, and a downstream generally diametrally extending facet adjacent thereto, each said generally circumferential facet being generally parallel to the axis “A” of the cylinder and having a leading edge and a trailing edge, each said leading edge and trailing edge as well as each said upstream generally diametrally extending facet and each said downstream generally diametrally extending facet being generally parallel to the axis “A” of the cylinder, each said leading edge being located upon a cylindrical surface S1, and each said trailing edge being located upon a cylindrical surface S2, the diametral difference “δ” between the distance from the axis “A” to the cylindrical surface 51 and the diametral distance from the axis “A” to the cylindrical surface S2 being between about 0.4 mm to about 0.6 mm, the normal direction to the surface of each said generally circumferential ...

Method of Manufacturing a Screen Cylinder and a Screen Cylinder

The present invention relates to a method of manufacturing a screen cylinder, and a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp or fiber suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to screening or filtering devices of the type comprising a plurality of screen wires ( 10 ) positioned at a small spacing parallel to each other, the screen wires ( 10 ) being fastened into notches in the support elements ( 20 ) by means of shrink fitting the screen wires ( 10 ) into the notches by heating the second rim area ( 26 ) of the support ring ( 20 ) after the screen wires ( 10 ) have been inserted into the notches.

Inclined mesh panel type filtering apparatus

An inclined mesh panel type filtering apparatus capable of easily removing suspended solids from water. In a conventional apparatus, a filtration fabric is contaminated from use even when it is cleaned by a brush unit or a cleaning unit, and is almost clogged, in the course of one to two years after being put into operation, to such an extent that scale is not even removed even by additional manual cleaning. Thus, the entire apparatus should be disassembled to replace the filtration fabric with a new one or exchange an entire filter drum. This problem is resolved by the inclined mesh panel type filtering apparatus that can be continuously operated for a long time in which a filtration panel formed with fine openings having a typical size of 0.2 to 1.2 mm is not clogged and does not require high-pressure cleaning-water or air showers that consume high energy.

System and Method for Reclaiming Rejects in Sulfite Pulping

Systems and methods are provided for refining and reclaiming rejects in a sulfite pulping process. Wood chips and sulfite cooking liquor are provided to a digester for delignification. The slurry obtained from the digester is screened to obtain a reject portion containing sulfite rejects. The sulfite rejects are disintegrated in a refiner, such that the rejects are refined to a freeness suitable for digestion in a subsequent re-cooking step. Refined rejects are then returned to the digester for re-cooking with wood chips.

ROTARY DISC FILTER APPARATUS AND RELATED METHODS

The adaptation of a rotary drum filter structure to a accommodate filter discs within the existing rotary drum filter structure while using the existing rotary drum structure foundation, piping, etc. to allow a filter disc operation. 1. A filtration apparatus comprising:a rotatable central shaft having at least two filter discs that are attached perpendicularly to a length of the central shaft, the at least two filter discs each being generally cylindrical and having a diameter greater than a height; a vat adapted to contain a slurry of feed material having liquid and solids, and the at least two filter discs being configured to contact the slurry of feed material; a pump configured to remove filtrate through the at least two filter discs, such that solids form on at least one outside surface of a filter disc; means for removing the solids formed on the at least one outside surface of at least one filter disc; at least one first conveyor substantially perpendicular to the central shaft, the first conveyor being configured to move the removed solids to a second collection conveyor that is configured to collect the removed solids from the at least two filter discs for removal.2. The filtration apparatus of claim 1 , wherein at least one scraper is configured to remove the solids formed on the at least one outside surface of at least one filter disc.3. The filtration apparatus of claim 2 , wherein the scrapers are located on either side of and above the at least one first conveyor claim 2 , and extend from the shaft end of the at least one first conveyor to a point along the at least one first conveyor where the filter discs end.4. The filtration apparatus of claim 1 , wherein the at least one first conveyor extends beyond the vat wall and above the second collection conveyor and is mounted to the vat at a crossing point where the at least one first conveyor crosses the vat.5. The filtration apparatus of claim 1 , wherein the at least one first conveyor further ...

Process for Separating Trichomes from Non-Trichome Materials

A process for separating trichomes from non-trichome materials, and more particularly to a process for separating trichomes that utilizes an aeration step, trichomes produced therefrom, and fibrous structures produced using such trichomes are provided. 1. A process for extracting trichomes from non-trichome materials , the process comprising the steps of:a. providing a mixture of trichomes and non-trichome materials;b. adding water to the mixture to form a slurry;c. physically separating the trichomes from the non-trichome material by one or more of the following steps: i. aerating the slurry and ii. screening the slurry such that the trichomes physically separate from the non-trichome materials; andd. removing at least a portion of the trichomes from the slurry.2. The process according to wherein the process further comprises the step of adding one or more surfactants to the slurry.3. The process according to wherein at least one of the surfactants is present in the water.4. The process according to wherein at least one of the surfactants comprises a surfactant selected from the group consisting of: anionic surfactants claim 2 , amphoteric surfactants claim 2 , nonionic surfactants claim 2 , zwitterionic surfactants claim 2 , cationic surfactants claim 2 , and mixtures thereof.5. The process according to wherein at least one of the surfactants comprises a surfactant selected from the group consisting of: anionic surfactants claim 4 , amphoteric surfactants claim 4 , nonionic surfactants claim 4 , and mixtures thereof.6. The process according to wherein at least one of the surfactants comprises a surfactant selected from the group consisting of: anionic surfactants claim 5 , amphoteric surfactants claim 5 , and mixtures thereof.7. The process according to wherein at least one of the surfactants comprises an anionic surfactant.8. The process according to wherein the anionic surfactant comprises an alkyl ethoxy sulfate.9. The process according to wherein the anionic ...

MAGNETIC BAFFLE INSERT FOR USE WITH A BASKET STRAINER

A basket strainer insert having a body with one or more magnets disposed therein. The basket strainer insert includes a baffle to disrupt the flow of liquid through the basket strainer and facilitates the attraction of metallic particles to the body. The baffle has a plurality of lobes secured to the body with connection portions and separated from each other by gaps. The lobes may have an inward bend, an outward bend, or may be planar. 1. A basket strainer insert comprising:a body, the body comprising a first end, a second end, and an intermediate portion;at least one magnet disposed in the body and configured to remove particles from a fluid, the first end of the body configured to selectively open to allow for removal of the at least one magnet from the body; anda baffle secured to the body, the baffle comprising between three to six lobes, with adjacent lobes separated by gaps, each lobe secured to the body by a connecting portion.2. The basket strainer insert of claim 1 , wherein the connecting portions are integrally formed with the lobes.3. The basket strainer insert of claim 2 , wherein the connecting portions are integrally formed with the body.4. The basket strainer insert of claim 1 , wherein the lobes have an inward bend.5. The basket strainer insert of claim 1 , wherein the lobes have an outward bend.6. The basket strainer insert of claim 1 , wherein the lobes are planar.7. The basket strainer insert of claim 1 , wherein the connecting portions extend between the body and the lobes and form a T-shape.8. The basket strainer insert of claim 1 , wherein the lobes are equidistantly spaced from each other.9. A basket strainer insert comprising:a body, the body comprising a first end, a second end, and an intermediate portion;at least one magnet disposed in the body and configured to remove particles from a fluid, the first end of the body configured to selectively open to allow for removal of the at least one magnet from the body; anda baffle secured to the ...

Systems and Methods for Extracting Particulate from Raw Slurry Material

A separation system for separating solids from a slurry of waste material employs first and second separator assemblies. The first separator assembly has a main housing and a perforated drum supported for rotation relative to the main housing. The second separator assembly has a barrel member and an auger blade supported for rotation relative to the barrel member. The main housing is fixed relative to the barrel member such that rotation of the perforated drum removes a first solids portion from the slurry of waste material and rotation of the auger member removes a second solids portion from the slurry of waste material. 1. A separation system for separating solids from a slurry of waste material , the separation system comprising:a first separator assembly comprising a main housing and a perforated drum supported for rotation relative to the main housing; anda second separator assembly comprising a barrel member and an auger blade supported for rotation relative to the barrel member; whereby rotation of the perforated drum removes a first solids portion from the slurry of waste material, and', 'rotation of the auger member removes a second solids portion from the slurry of waste material., 'the main housing is fixed relative to the barrel member such that'}2. A separation system as recited in claim 1 , in which:the main housing is fixed to the barrel member to define an auger hopper;the auger hopper is arranged relative to the perforated drum such that at least a portion of the slurry of waste material enters the auger hopper; andthe auger blade is arranged at least partly within the auger hopper.3. A separation system as recited in claim 1 , in which:the main housing defines a main inlet and a main outlet; andthe barrel member defines an auger outlet; wherebythe slurry of waste material enters the perforated drum through the main inlet;the first solids portion and the slurry of waste material passes through the main outlet; andthe second solids portion passes ...

METHOD AND SYSTEM FOR HIGH ALPHA DISSOLVING PULP PRODUCTION

A method for pulp processing used in connection with a pre-hydrolysis kraft process (PHKP) includes adding wood chips or similar material to a reaction vessel, performing pre-hydrolysis, and neutralizing the mixture with a first quantity of white liquor followed by a different solution such as a cold caustic extraction alkaline filtrate optionally enriched with white liquor. The neutralization fluids are replaced with a cooking fluid comprising a hot black liquor and alkaline filtrate, optionally enriched with white liquor. The cooking fluid may have a relatively high effective alkali concentration. The cooked pulp may exhibit very low residual hemicelluloses and a kappa number within an optimal range. 134.-. (canceled)35. A semi-purified pulp derived from plant matter , said semi-purified pulp having a residual hemicelluloses content of less than 3.0 percent as measured in terms of S18 solubility and a kappa number of greater than 8 after cooking but before cold caustic extraction36. The semi-purified pulp of claim 35 , wherein the plant matter is a hardwood.37. The semi-purified pulp of claim 35 , wherein claim 35 , after cold caustic extraction but before bleaching claim 35 , the residual hemicelluloses content is no greater than 1.7 percent as measured in terms of S18 solubility and the kappa number is no less than 9.3842.-. (canceled) This application is a divisional of U.S. patent application Ser. No. 12/789,307, filed May 27, 2010 hereby incorporated by reference as if set forth fully herein.1) Field of the InventionThe field of the invention generally relates to pulp processing and, more specifically, to an improved method and system for treating effluents from cold caustic extraction in connection with a kraft chemical pulping process.2) BackgroundPulp from wood and plant materials has a large number of commercial uses. Although one of the most common uses is in paper manufacturing, pulp can also be used to produce a number of other products including rayon ...

PROCESSING OF RECYCLED MATERIAL

An apparatus and a method for processing recycled material, comprising a first pulper () having an inlet () for receiving recycled material (), a water inlet () for producing a mixture of water and particles of recycled material, a first rotor unit (R) configured to slush recycled material and a first screen plate () connected to a first outlet () configured to extract a first portion of recycled material from the first pulper (); a last pulper () having a reject washer configured to remove coarse rejected recycled material from the last pulper (); and an upper channel () from the first pulper () to the last pulper (), wherein the mixture of water and particles of recycled material is configured to flow over from the first pulper () to the last pulper (). The apparatus comprises a of the last pulper () being lower than or at the same level as the first pulper (); a lower channel () at the bottom of the first pulper () extending to the last pulper (); and a gate () at the lower channel (), configured to cause, when open, the mixture of water and particles of recycled material to flush to the last pulper ().

ROTOR UNIT FOR PROCESSING RECYCLED MATERIAL

A rotor unit in a vessel containing a mixture of water and particles of recycled material, comprising a rotor unit body (); a screen plate () installed to the vessel; a rotor () connected to the rotor unit body () and configured to rotate inside the vessel, comprising at least two wings () configured to slush recycled material in a rotating action and at least two foils () configured to clean the screen plate () by rotating above the screen plate (); a space () around the rotor () defined by a rotor body (); pipework () configured to bring diluting water from outside the vessel to the space () around the rotor (); wherein the rotor body () defining the space () around the rotor () comprises an opening () allowing the diluting water to pass through the opening () towards the mixture of water and particles of recycled material. The opening () at the rotor body () is at the same level with the lower edge of the at least two wings () or the at least two foils (), wherein the diluting water is allowed to pass through the opening () to the screen plate (). 1. A rotor unit in a vessel containing a mixture of water and particles of recycled material , comprising:a rotor unit body;a screen plate installed to the rotor unit body, configured to separate accepted recycled material penetrated through the screen plate and rejected recycled material remaining in the vessel;an outlet for the accepted recycled material in the lower portion of the vessel;a rotor connected to the rotor unit body and configured to rotate inside the vessel, comprising at least two wings configured to slush recycled material in a rotating action and at least two foils configured to clean the screen plate by rotating above the screen plate;a space around the rotor defined by a rotor body; and 'the rotor body defining the space around the rotor comprises at least one opening allowing the diluting water to pass through the at least one opening towards the mixture of water and particles of recycled material ...

RAKE SCREEN AND NOVEL COMPONENTS THEREFOR

Rake systems for cleaning water streams and new and novel components for such rake systems. 1. A flexing apparatus for a rake screen , said flexing apparatusa. an attached support arm attached at each attachment points each said support arm having a distal end;b. attached to each said support arm distal end, a means for enhancing the movement of a chain;c. said bottom end and top end of said elongated rail having a first roller incorporated therein;d. there being secondary pivotally mounted second rollers in each said elongated rail, near each said top end second rollers.2. The flexing apparatus as claimed in wherein said means for enhancing the movement of a chain in d. is pivotal.3. The flexing apparatus as claimed in wherein said means for enhancing the movement of a chain in d. is a roller.4. The flexing apparatus as claimed in wherein said means for enhancing the movement of a chain in d. is a slide rail.5. A rake screen apparatus having a flexing apparatus of mounted to a framework of said rake screen apparatus.6. A dual wiper blade assembly for a rake system claim 1 , said dual wiper blade assembly comprising:a. a pair of support members each having a near end and a distal end, each said near end having pivotal attachment capability for attaching to a framework of a rake system;b. each said distal end of said support member having attached thereto, holders, each said holder having a bottom edge;c. each said bottom edge having a first notch therein and a spaced-apart second notch therein;d. a common first wiper blade attached in said first notches and a common second wiper blade surmounting said first wiper blade and attached in said second notches.7. A rake screen apparatus having a dual wiper blade assembly as claimed in mounted to a framework of said rake screen apparatus.8. A stand-alone modular unit comprising a bar screen claim 5 , said modular unit configured to replace a bar screen in an existing rake screen apparatus.9. A stand-alone modular unit ...

PULPER FOR CIRCULATING A FIBROUS STOCK SUSPENSION

A pulper for circulating a fibrous stock suspension. The pulper includes at least one screen, having a screen surface which is provided with screen openings, and over which a rotor passes. The rotor is formed by a rotor head, to which a plurality of rotor blades are attached on the outer circumference. The rotor circle of the screen, which is passed over by the rotor wings, includes a plurality of bar-shaped elevations. In the process, pulping is to be improved, while wear is to be minimized, in that the angle of intersection between the working edge of the rotor blades pointing in the direction of rotation and the shear edge of the elevations pointing counter to the direction of rotation does not decrease radially outwardly. 1. A pulper for circulating a fibrous stock suspension which is present in a vat , comprising:at least one screen including a screen surface with a plurality of screen openings therein, the at least one screen further including a plurality of bar-shaped elevations, each elevation defining a shear edge that points in a first direction;a rotor that is configured to pass over the screen surface, the rotor being formed by a rotor head and a plurality of rotor blades attached to the rotor head, each rotor blade defining a working edge that points in a second direction which is opposite to the first direction, the second direction being a direction of rotation of the rotor,wherein an angle of intersection between the working edge of each rotor blade and the shear edge of each elevation remains constant radially outwardly, at least in sections, and/or increases, at least in sections.2. The pulper according to claim 1 , wherein each working edge has a length claim 1 , wherein the angle of intersection remains constant radially outwardly at least across two-thirds of the length of each working edge.3. The pulper according to claim 2 , wherein the angle of intersection remains constant radially outwardly across the entire length of each working edge.4. ...

PROCESS FOR AMBIENT TEMPERATURE FRACTIONATION AND EXTRACTION OF VARIOUS BIOMASSES

The present invention provides a process for fractionating biomass into its individual components. The process includes pretreating a biomass which may include mechanically altering the fibers and/or contacting the biomass with a solvent to provide a fluidized biomass. The pretreated fluidized biomass may be subjected to high frequency pulses and shear forces without denaturing one or more components of the biomass to provide a first liquid fraction and a first fractionated biomass. The first liquid fraction may then be isolated or separated from the first fractionated biomass. The biomass may be separated, isolated or purified into lignin, extractives for use in pharmaceuticals or nutraceuticals, cellulose, hemicellulose, and other sugars and proteins. 1. A process for fractionating biomass into one or more components of the biomass , the process comprising:a) pretreating the biomass to provide a fluidized biomass;b) subjecting the pretreated fluidized biomass to high frequency pulses and shear forces without denaturing one or more components of the biomass to provide a first liquid fraction and a first fractionated biomass; andc) isolating the first liquid fraction from the first fractionated biomass.2. The process of claim 1 , further comprising step c) of subjecting the first fractionated biomass to the same high frequency pulses and shear forces of step b) to provide a second liquid fraction and a second fractionated biomass isolated from each other.3. The process of claim 1 , wherein step c) of isolating the first liquid fraction from the first fractionated biomass comprises applying a compressive force to the first fractionated biomass.4. The process of claim 2 , including applying a compressive force to the second fractionated biomass.5. The process of wherein the first liquid fraction and the second liquid fraction are filtered and combined.6. The process of claim 2 , wherein the first liquid fraction and the second liquid fraction are subjected to membrane ...

Rotor Blade and Screen Comprising a Rotor Blade

The invention relates to a blade for screens for the treatment of a fibrous suspension, said blade being mountable on a rotor of the screen. According to the invention, the blade has a curved leading edge or curved envelope of the leading edge, the curvature extending in the direction of the trailing edge, and a curved trailing edge or curved envelope of the trailing edge, said curvature extending in the same direction as the other one. The invention also relates to a screen comprising a rotor on which the disclosed blades are mounted. 115-. (canceled)161010110111217181121231212221223111011. A blade () for screens used to treat a fibrous pulp suspension which blade () can be secured to a screen rotor () and where the blade () extends between a leading edge () and a trailing edge () with two opposite end edges ( , ) therebetween and defines an upper side and lower side , the leading edge () or an envelope curve () thereof being arched toward the direction () of the trailing edge () when viewed from a first side , the trailing edge () or the envelope curve () of the trailing edge () being arched in the same direction () as the leading edge () when viewed from the first side , wherein the blade () has a cross-section with a wing-shaped profile having a convex upper surface , and the leading edge () forms a profile nose.171011241718. The blade () according to claim 16 , wherein the leading edge () is curved symmetrically from the middle of the blade () towards its opposite end edges ( claim 16 , ).1810112111. The blade () according to claim 17 , wherein the leading edge () or the envelope curve () of the leading edge () is curved in an arc shape.191011212312. The blade () according to claim 16 , wherein the leading edge () is stepped and an envelope curve () thereof is curved in the direction () of the trailing edge ().20101222. The blade () according to claim 19 , wherein the trailing edge () is stepped and an envelope curve () thereof is curved.21101920. The blade () ...

Separation device foe emission reduction in stables and animal stable

A separating device for forming a standing area for livestock, in particular pigs, and for reducing emissions in pens, in particular in pig pens, comprises a base frame, a drainage element with a plurality of drainage channels which each comprise an outflow end, and shoulders, between which the plurality of drainage channels extends orthogonally to a drainage direction, a liquid-permeable endless belt with an upper run and a lower run, wherein the drainage element is arranged on the base frame such that a drainage direction of the plurality of drainage channels is directed in the direction of the outflow end.

FILTER HOUSING WITH REMOVABLE MULTI-CARTRIDGE HOLDER

The present invention is directed to a filter housing with a removable filter assembly having an elongated shell assembly, a removable head assembly, and a removable filter assembly. The shell assembly has an inlet section, an outlet section, and a filter assembly opening. The removable filter cartridge includes a top tube sheet, a bottom tube sheet and a plurality of filter cartridges. The filter cartridges provide the only fluid passage through the bottom tube sheet, which otherwise sealing engages a ring assembly within the shell assembly proximate to the outlet section. 1. A filter housing with a removable filter assembly , comprising:an elongated shell assembly having an inlet section, an outlet section, and a filter assembly opening;a removable head assembly configured for sealing engagement with the filter assembly opening on the elongated shell assembly;a removable filter assembly configured for insertion into and removal from the elongated shell assembly through the filter assembly opening, wherein the filter assembly comprises a plurality of filter cartridges oriented generally between the inlet section and the outlet section; anda seal assembly on the filter assembly configured for sealing engagement with a ring assembly on an interior perimeter of the shell assembly between the inlet section and the outlet section proximate to the outlet, wherein the plurality of filter cartridges occupy a plurality of through holes in the seal assembly such that the only fluid passage through the seal assembly is through the filter cartridges.2. The filter housing of claim 1 , wherein the head assembly has a push down assembly disposed around an interior perimeter.3. The filter housing of claim 2 , wherein the push down assembly comprises an annular ring or a plurality of push down lugs disposed around the interior perimeter.4. The filter housing of claim 2 , wherein the filter assembly comprises a top tube sheet configured to receive the push down assembly when the ...

METHOD FOR SCREENING AND A SCREENING APPARATUS

The present invention is directed to methods and apparatus for screening a pulp suspension where the pulp suspension is directed to a screening space, where a part of the fibres in the pulp is screened using a drum-type rotor. The residual pulp suspension is then directed to a dilution space where it is mixed with recirculated pulp flow and the pulp suspension in the dilution space will be screened. Resulting preliminary reject flow is directed to a mixing space where it mixes with a dilution flow. The recirculated pulp flow is then directed back to the dilution space. 1. A method for screening a pulp suspension , the method comprising:directing a pulp suspension to a screening space between a filtering screen and a rotating drum-type rotor;screening a part of the fibres in the pulp suspension in the screening space through the screen;directing at least a part of the flow passing through the screen to at least one accept outlet; directing a residual pulp flow from the screening space to a dilution space, the dilution space being bordered at least partly by the filtering screen;', 'mixing the residual pulp flow with a recirculated pulp flow at least partly in the dilution space;', 'screening a part of the fibres in the pulp suspension in the dilution space through the filtering screen;', 'directing at least a part of a dilution flow to a reject space where it mixes with a preliminary reject flow; and', 'directing the recirculated pulp flow to the dilution space., 'directing a reject flow to at least one reject outlet;'}2. The method according the claim 1 , further comprising:dividing the suspension in the reject space into the recirculated pulp flow and a reject flow.3. The method according the claim 1 , further comprising:increasing the turbulence in the dilution space with at least one mixing element extending to the dilution space.4. The method of any preceding claim claim 1 , further comprising;cleaning the filtering screen bordering the dilution space by at ...

Continuous Rotary Plate Filter and Methods of Use Thereof

The present disclosure provides for a continuous rotary plate filter apparatus and a method of using the apparatus to separate slurries into liquids and solids. The methods and apparatus are useful for the production of fine chemicals and pharmaceuticals, particularly using Integrated Continuous Manufacturing (ICM), but can also be integrated with other manufacturing processes, such as batch and semi-continuous processes. 1. An apparatus for continuously processing a slurry comprising:a housing;{'b': '1300', 'a slurry feed and solvent wash assembly ();'}{'b': 1101', '1300, 'a removable, rotatable filter plate () having a porous surface for receiving said slurry from said slurry feed assembly ();'}{'b': '1101', 'a rotatable inner plate supporting said filter plate ();'}an inner plate rotator for rotating said inner plate;{'b': 1107', '1101, 'a filtrate outlet () in fluid communication with said filter plate () adapted to convey a filtrate from said housing;'}{'b': 1403', '1101, 'a scraper () for removing a solid filter cake from said filter plate (); and'}{'b': '1102', 'a filter cake outlet () adapted to convey said filter cake from said housing.'}2130013011304. The apparatus of claim 1 , wherein said slurry feed and solvent wash assembly () comprises a slurry feed block () and a slurry distributor ().3130013021305. The apparatus of claim 2 , wherein said slurry feed and solvent wash assembly () further comprises a wash solvent block () and a slurry wash block ().4. (canceled)5130013101306. The apparatus of claim 1 , wherein said feed and solvent wash assembly () comprises an oscillating deposition tube () coupled to a slurry line () that conveys said slurry from an outlet of a slurry pump.6. The apparatus of claim 1 , wherein said porous surface has a pore size D90 of 0.01 microns (μm) to 100 μm.71101. The apparatus of claim 1 , wherein said filter plate () further comprises a coating.81101. The apparatus of claim 1 , further comprising a pressure equalizer for ...

MODULAR SHAFT FOR DISC FILTER

A modular support structure comprising multiple chord or arc modules configured to selectively fixedly engage adjacent modules to define a completed annular support structure configured to support a rotary element of a rotary filter. The modular chord or arc segments may fixedly engaged an adjacent chord or arc segment through a fixing mechanism selected from the group consisting of: fasteners, clamps, pins, bolts, locks, locking mechanisms, key and socket mechanisms, spot welding, welding, adhesives, and other fastening mechanisms configured to engage and disengage adjacent chord or arc modules with ease. 1. A rotary filter support assembly comprising:a drainage assembly disposed at a drainage end, the drainage end being distally disposed from a second end;multiple support structure modules disposed annularly around an axis of rotation, the support structure modules comprising a first module and an adjacent module, the first module comprising:a first end configured to fixedly engage the drainage assembly,a distal end,an axial arm disposed between the first end and the distal end, anda transverse beam extending outwardly from the axial arm, and configured to extend toward the adjacent module, and wherein a distal end of the transverse beam is configured to fixedly engage the adjacent module.2. The rotary filter support structure of claim 1 , wherein the first end of the first module is configured to engage the drainage assembly and the distal end of the transverse beam is configured to engage the adjacent module through a fastening mechanism selected from the group consisting of: fasteners claim 1 , clamps claim 1 , pins claim 1 , locks claim 1 , locking mechanisms claim 1 , key and socket mechanisms claim 1 , spot welding claim 1 , welding claim 1 , and adhesives.3. The rotary filter support assembly of claim 2 , wherein the distal end of the first module is configured to engage a bearing assembly through the fastening mechanism.4. The rotary filter support ...

Water treatment method and water treatment apparatus

A water treatment method treats raw water (water to be treated) containing organic wastewater. The method includes (i) an aeration process performs an initial absorption treatment by aerating the water to be treated, (ii) a filtration process for filtering the water to be treated which has been treated by the initial absorption treatment in the aeration process, (iii) a digestion treatment process for digesting solids captured by the filtration process, (iv) a biological treatment process for denitrifying, with activated sludge, filtered water obtained through the filtration process, (v) a sludge transfer process for sending the activated sludge from the biological treatment process to the aeration process, and (vi) an adjustment process for adjusting an amount of the activated sludge sent to the aeration process via the sludge transfer process based on a nitrogen concentration of treated water which has been biologically treated by the biological treatment process.

Sand and Solids Bypass Separator

A sand bypass separator is provided for separating particulate matter from a fluid mixture in a production well and directing the separated particulate matter away from a pump intake. The separator includes an outer tube, an inner tube positioned within the outer tube. The outer tube has a plurality of slots to allow the fluid mixture to enter the separator between the outer tube and the inner tube. As the fluid mixture moves downward, the fluid mixture reaches a downward velocity sufficient to allow the particulate matter in the fluid mixture to continue downward as the fluid is drawn into the inner tube through the pump intake. A bypass that extends from above the pump intake to below the pump intake to collect and direct the separated particulate matter separated below the pump intake may also be included. 1. A particulate separator for use with a production well producing a fluid mixture including particulate matter , the separator comprising:an outer tube comprising a closed top end, an open bottom end, and a conduit extending therethrough, wherein the outer tube comprises a plurality of slots extending from an exterior surface of the outer tube to the conduit; andan inner tube positioned within the conduit of the outer tube, wherein the inner tube comprises a pump intake at a bottom end of the inner tube positioned below the plurality of slots of the outer tube, the plurality of slots allowing the fluid mixture to enter a channel between the outer tube and the inner tube and to flow downward toward the pump intake, wherein the fluid mixture reaches a downward velocity sufficient to allow the particulate matter in the fluid mixture to continue downward as the fluid is drawn into the inner tube through the pump intake.2. The separator of further comprising a bypass extending from above the pump intake to below the pump intake claim 1 , wherein the bypass is configured to direct the particulate matter separated from the fluid mixture downward from above the pump ...

SHEET MANUFACTURING APPARATUS AND METHOD FOR MANUFACTURING SHEET

A sheet manufacturing apparatus includes comprises a screening unit configured to screen a defibrated material obtained by defibration treatment, and a sheet forming unit configured to form a sheet with the defibrated material screened with the screening unit. The screening unit has a first screening unit to which a plurality of first openings are provided and a second screening unit to which a plurality of second openings larger than the first openings are provided, and the defibrated material is screened by the first screening unit and the second screening unit. The defibrated material is screened at one of either the first screening unit or the second screening unit and thereafter screened at the other, and the sheet forming unit forms the sheet with the defibrated material that does not pass through the first openings and does pass through the second openings. 1. A sheet manufacturing apparatus , comprisinga screening unit configured to screen a defibrated material obtained by defibration treatment, anda sheet forming unit configured to form a sheet with the defibrated material screened by the screening unit,the screening unit having a first screening unit to which a plurality of first openings are provided and a second screening unit to which a plurality of second openings larger than the first openings are provided, the defibrated material being screened by the first screening unit and the second screening unit,the defibrated material being screened by one of the first screening unit and the second screening unit, and thereafter screened by the other of the first screening unit and the second screening unit, andthe sheet forming unit being configured to form the sheet with the defibrated material that does not pass through the first openings and passes through the second openings.2. The sheet manufacturing apparatus as set forth in claim 1 , whereinthe first screening unit is movable, andthe first screening unit is configured to move faster than the second ...

METHOD AND APPARATUS FOR CONTROLLING A FIBER FRACTIONATION SYSTEM

A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers includes measuring an average LF fiber length at one or more locations post-fractionation, and maintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system. 1. A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers , the method comprising:measuring an average LF fiber length at one or more locations post-fractionation; andmaintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system.2. The method of claim 1 , wherein the rotational speed of the rotor is controlled by a frequency converter.3. The method of claim 1 , wherein measuring the average LF fiber length is performed immediately after fractionation.4. The method of claim 1 , wherein measuring the average LF fiber length is performed after one or more post-fractionation processing steps.5. The method of claim 1 , further comprising:altering at least one parameter of at least one post-fractionation processing step to maintain the average LF fiber length within the target variability range.6. The method of claim 1 , further comprising:measuring one or more properties of a furnish formed by mixing the LF stream and the SF stream; andautomatically altering the rotational speed of the rotor of the fiber fractionation system to maintain at least one of the one or more measured furnish properties within a respective target range.7. The method of claim 6 , wherein the one or more measured furnish properties comprise the average LF fiber length claim 6 , an average SF fiber length ...

FILTER APPARATUS, FILTER DISC SECTORS, FILTER ELEMENTS AND USES

A filtration device can be configured to form filter cakes and filtrate by filtering solid particulates from a slurry. Some embodiments of the filtration device can utilize a mechanism that is configured to separate the formed filter cake from a disc sector for subsequent processing of the solid particulates of the filter cake and/or the formed filtrate. Embodiments of the filter device and/or mechanisms of the filter device as well as methods of making and using the same can help provide improvements in operational efficiency for processing operations in which solids are to be filtered from a slurry. 1. A filtration device comprising: at least one of:', '(i) a scraper comprising at least one scraper member configured to scrape filter cakes formed on the disc sectors of at least one disc via the at least one scraper member directly contacting at least one filter element of each of the disc sectors of the disc to remove the filter cake for directing solid particulate material of the filter cake to at least one discharge chute;', '(ii) a backwash mechanism configured to feed backwash fluid to the disc sectors of the at least one rotatable disc via tube manifolds connected to a backwash mechanism tank of the backwash mechanism so backwash fluid flows through inner spaces defined by a frame and at least one filter element of each of the disc sectors via the tube manifolds and is output from passageways of the at least one filter element to clean the filter element during a backwash operation, the backwash fluid including liquid, gas, or a combination of liquid and gas;', '(iii) a dip mechanism configured so that so that the disc sectors of each disc move independently of each other between a retracted position and an extended position so that the disc sectors are in the extended position when passing through the slurry bath and are in the retracted position when out of the slurry bath during rotation of the at least one rotatable disc; and', '(iv) a master valve ...

INTEGRATED METHOD AND SYSTEM FOR RECYCLING WASTE MATERIAL

Integrated methods and systems for recycling waste material including waste paper are provided, the methods including treating the waste material in the pressure vessel at an elevated processing temperature and an elevated processing pressure to form a treated waste material including a substantially re-pulped waste paper; discharging the treated waste material from the pressure vessel; and thereafter separating and diluting the treated waste material to dilute a portion including the substantially re-pulped waste paper to from about 1% to about 20% by weight solids. The recovered paper pulp fraction and substantially fiber-free recoverable/recyclable plastics and metals may be further separated and used as feedstock in a variety of subsequent processes. 1. A method for recycling waste material including waste paper comprising:introducing the waste material into a pressure vessel;treating the waste material in the pressure vessel at an elevated processing temperature and an elevated processing pressure to form a treated waste material including a substantially re-pulped waste paper;discharging the treated waste material from the pressure vessel; andthereafter separating the treated waste material with a screening device into a first portion and a second portion, the first portion comprising the substantially re-pulped waste paper and the second portion comprising large debris, wherein the step of separating further comprises washing the first portion through the screening device with an amount of water sufficient to dilute the first portion to from about 1% to about 20% by weight solids.2. The method of claim 1 , wherein the discharged treated waste material has a temperature from about 110 to about 220° F.3. The method of claim 1 , wherein the discharged treated waste material comprises solids present in the discharged treated waste material in an amount from about 5% to about 50% by weight of the discharged treated waste material.4. The method of claim 1 , wherein ...

METHOD AND APPARATUS FOR CONTROLLING A FIBER FRACTIONATION SYSTEM

A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers includes measuring an average LF fiber length at one or more locations post-fractionation, and maintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system. 1. A method for controlling a fiber fractionation system for fractionating an input material into a long fraction (LF) stream comprising LF fibers and a short fraction (SF) stream comprising SF fibers , the method comprising:measuring an average LF fiber length at one or more locations post-fractionation; andmaintaining the average LF fiber length within a target variability range by automatically altering a rotational speed of a rotor of the fiber fractionation system.2. The method of claim 1 , wherein the rotational speed of the rotor is controlled by a frequency converter.3. The method of claim 1 , wherein measuring the average LF fiber length is performed immediately after fractionation.4. The method of claim 1 , wherein measuring the average LF fiber length is performed after one or more post-fractionation processing steps.5. The method of claim 1 , further comprising:altering at least one parameter of at least one post-fractionation processing step to maintain the average LF fiber length within the target variability range.6. The method of claim 1 , further comprising:measuring one or more properties of a furnish formed by mixing the LF stream and the SF stream; andautomatically altering the rotational speed of the rotor of the fiber fractionation system to maintain at least one of the one or more measured furnish properties within a respective target range.7. The method of claim 6 , wherein the one or more measured furnish properties comprise the average LF fiber length claim 6 , an average SF fiber length ...

Filter For Continuous Filtration Of A Suspension Under Pressure

The invention relates to a filter for continuous filtration of a suspension under pressure, with a pressure vessel (), rotating filter elements () disposed in the pressure vessel (), where the filter element () passes through one filter cycle for each rotation, with filter zones in liquid and gaseous phase, also with filtrate channels () that are connected between the filter elements () and separate filtrate outlets () for each filter zone, as well as a device to control the individual filtrate zones by means of a control disc (), where the control disc () has filtrate outlets () for liquid and gaseous phase. It is primarily characterized in that a venting zone () 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 () and filtrate channels () can be carried off and pressure-relieved in a favorable manner. 11212224214215444411411546114. In a filter for continuous filtration of a suspension under pressure , with a pressure vessel () , rotating filter elements () disposed in the pressure vessel () , where a filter element () passes through one filter cycle for each rotation , with filter zones (′ , ″) in liquid and gaseous phase , also with filtrate channels (′) that are fluidly connected between the filter elements () and separate filtrate outlets ( , ) for each filter zone , as well as a control head to control the individual filter zones by a control disc () , where the control disc () has a cake formation zone () and a dewatering zone () operatively associated respectively with the liquid and gaseous phases , the improvement comprising that a venting zone () is provided in the control disc before the cake formation zone () , viewed in the direction of the filter cycle.214215251. Filter according to claim 1 , wherein the separate filtrate outlets ( claim 1 , ) are connected to a separation tank () arranged at a lower elevation than the pressure vessel ().3114115. ...

Sand and Solids Bypass Separator

A sand bypass separator is provided for separating particulate matter from a fluid mixture in a production well and directing the separated particulate matter away from a pump intake. The separator includes an outer tube, an inner tube positioned within the outer tube. The outer tube has a plurality of slots to allow the fluid mixture to enter the separator between the outer tube and the inner tube. As the fluid mixture moves downward, the fluid mixture reaches a downward velocity sufficient to allow the particulate matter in the fluid mixture to continue downward as the fluid is drawn into the inner tube through the pump intake. A bypass that extends from above the pump intake to below the pump intake to collect and direct the separated particulate matter separated below the pump intake may also be included. 1. A particulate separator for use with a production well producing a fluid mixture including particulate matter , the separator comprising:an outer conduit having one or more openings extending from an exterior surface of the outer conduit into the conduit; andan inner conduit positioned within the outer conduit, wherein the inner conduit comprises a pump intake at a bottom end of the inner conduit positioned below the one or more openings of the outer conduit, the one or more openings allowing the fluid mixture to enter the outer conduit and to flow downward toward the pump intake, wherein the fluid mixture reaches a downward velocity sufficient to allow the particulate matter in the fluid mixture to continue downward as the fluid is drawn into the inner conduit through the pump intake;a bypass positioned to direct the particular matter from the fluid mixture to a point below the pump intake to inhibit the particulate matter from entering the pump intake.2. The separator of wherein the particulate matter enters the bypass above the pump intake.3. The separator of claim 2 , wherein the inner conduit is formed by an inner tube that comprises a substantially ...

FILTER SYSTEM FOR VISCOUS OR HIGHLY VISCOUS LIQUIDS, IN PARTICULAR PLASTIC MELTS AND METHOD FOR FILTERING VISCOUS OR HIGHLY VISCOUS LIQUIDS

The invention relates to a device and a method for filtering viscous or highly viscous liquids, in particular plastics melts, using an oscillating filter plate. 1. Filter system comprising a filter plate situated in a filter chamber , which is supported by a filter support plate , wherein either the filter plate is guided on the filter support plate by sliding elements in grooves or the filter support plate with the filter plate situated thereon is guided in the filter chamber by sliding elements and the filter plate or the filter plate together with the filter support plate is guided in an oscillating motion to clean the filter plate.2. Filter system according to claim 1 , wherein the filter system comprises at least one cleaning chamber connected to the filter chamber.3. Filter system according to claim 2 , wherein the cleaning chamber is sealed relative to the filter chamber by blocking elements.4. Filter system according to claim 1 , wherein an additional cleaning apparatus in the form of a scraper unit is provided.5. Filter system according to claim 1 , wherein the filter plate takes the form of a plate claim 1 , sheet or mat.6. Filter system according to claim 1 , wherein a conveying screw is provided in the cleaning chamber for discharging the filter cake.7. Method for filtering viscous or highly viscous liquids claim 1 , in particular plastics melts claim 1 , comprising the following method steps:supplying the viscous or highly viscous liquid to a filter chamber, in which a filter plate is situated which is guided in the filter chamber at the bottom and/or sides by sliding elements and which is guided in an oscillating motionsupplying the viscous or highly viscous liquid to the filter chamber through an inlet openingcarrying away the liquid passing through the filter platemoving the filter plate to a cleaning chambercarrying away the contaminants present on the filter plate by way of the cleaning chamber using conveying devices or a back-flushing process.8. ...

LAMINATED SPIRAL SOLID-LIQUID SEPARATOR WITH TORSIONAL PENDULUM MOTION

Disclosed is a laminated spiral solid-liquid separator with a torsional pendulum motion, the separator comprising fixed rings, movable rings and a screw shaft, wherein the screw shaft is provided with the fixed rings and the movable rings in a staggered arrangement in a radial direction to form a cavity. The separator further comprises a support rod sleeved in one end of the movable ring. The movable rings connect all the movable rings together to form a linkage by means of one or more kind of linkage mechanisms. The linkage is driven by one or more drive devices to swing about the support rod which is served as the center. Support devices are arranged on two or more positions in the cavity. Both a fixing rod on the fixed rings and the support rod on the movable rings pass through the support devices. 1. A laminated spiral solid-liquid separator with a pendulum motion , comprising:fixed rings, movable rings and screw shafts, wherein each of the screw shafts is provided with the fixed rings and the movable rings in a staggered arrangement in a radial direction to form a cavity;wherein, the separator further comprises a support rod sleeved in one end of the movable ring, and the movable rings are connected together to form a linkage by means of one or more kind of linkage mechanisms;wherein, the linkage is driven by one or more drive devices to swing about the support rod which is served as a center; andwherein, support devices are arranged on two or more positions in the cavity, and both a fixing rod on the fixed rings and the support rod on the movable rings pass through the support devices.2. The laminated spiral solid-liquid separator with a pendulum motion according to claim 1 , wherein the linkage mechanism fixes the movable rings and the support rod through a locking position of the key and the key slot; or a hole is formed in the movable ring through which a driven rod passes claim 1 , and the linkage mechanism fixes the movable rings and the support rod ...

POND PUMP WITH A SELF-CLEANING FILTER UNIT

A pump-and-filter assembly for use in a pond, pool, or fountain. The pump unit creates a flow of water into an intake port and out through a discharge port and a filter unit mounted in front of the pump unit for filtering water flowing through the pump. The filter unit has a turbulence-producing device that produces turbulence in the water on the outside of the filter element. The turbulence in the water that is being drawn into the filter impedes or prevents the build-up of material deposits on the outside surface of the filter element. 1: A pump-and-filter assembly for submersible use in water , the pump-and-filter assembly comprising:a pump unit that includes a pump motor, a drive shaft, and a pump element that causes the water flow to be drawn into the pump chamber through an intake port and discharged through a discharge port; anda filter unit that includes a filter element that at least partially surrounds a filter chamber and a turbulence-producing device that is rotationally driven and that creates turbulence in the water flow on the outside surface of the filter element;wherein the filter unit is provided upstream of the pump unit;wherein the filter element is movably mounted and also serves as the turbulence-producing device; andwherein the turbulence in the water flow works against material being deposited on the outside surface of the filter element.2: The pump-and-filter assembly of further comprising a filter shaft that is rotationally driven about a longitudinal axis and that extends through the filter chamber;wherein a magnetic element is provided on the filter shaft; andwherein the filter element is constructed to magnetically cooperate with the magnetic element, such that the filter element is rotationally driven by means of magnetic force from the rotating magnetic element.3: The pump-and-filter assembly of claim 1 , wherein the filter element is supported so as to be freely rotatable independently of the filter shaft and is set in rotation by the ...

SCREEN FEED ARRANGEMENT

A screen feed arrangement for a pulp production process, comprising a discharge tank having an outlet, which is connected to an inlet of a discharge tank pump having an outlet, a dilution tank having an outlet, a screen feed pump having an inlet and an outlet, and a screening arrangement, wherein the outlet of the discharge tank and the outlet of the dilution tank are connected to the inlet of the screen feed pump, the outlet of which is connected to the screening arrangement, and that pulp which passes the outlet of the discharge tank has a mass concentration from about 8% to about 15%. A corresponding method for feeding pulp to a screen feed arrangement is also presented. 17.-. (canceled)8. A screen feed arrangement for a pulp production process , comprising a discharge tank having an outlet , which is connected to an inlet of a discharge tank pump having an outlet , a screen feed pump having an inlet and an outlet , and a screening arrangement , which outlet of the screen feed pump is connected to the screening arrangement , the outlet of the discharge tank being configured for discharge of pulp having a mass concentration from about 8% to about 15% ,characterized by a dilution tank having an outlet, and in that the outlet of the discharge pump and the outlet of the dilution tank are via a three-way pipe connected to the inlet of the screen feed pump.9. The screen feed arrangement according to claim 8 , characterized in that there is no dilution of the pulp in the discharge tank.10. The screen feed arrangement according to claim 8 , characterized in that there are no agitators arranged in the discharge tank.11. The screen feed arrangement according to claim 8 , characterized in that the discharge tank pump is a pump which is capable of pumping pulp having a mass concentration of about 8-15%.12. The screen feed arrangement according to claim 8 , characterized in that the discharge tank has an inlet claim 8 , which is connected to a digester.13. The screen feed ...

METHOD OF PRODUCING CELLULOSE NANOFIBRILS

A cellulose nanofibrils production method comprising the steps of: identifying a desired level of cellulose nanofibrils pulp purity, partially refining pulp to produce a cellulose nanofibrils pulp purity between 5% and 15% less than the desired desired purity, and then separating out the cellulose nanofibrils from the longer fibers to produce the desired level of cellulose nanofibrils pulp purity. 1. A cellulose nanofibrils production method comprising the steps of: identifying a desired level of cellulose nanofibrils pulp purity , partially refining pulp to produce a cellulose nanofibrils pulp purity between 5% and 20% less than the desired desired purity , and then separating out the cellulose nanofibrils from the longer fibers to produce the desired level of cellulose nanofibrils pulp purity.2. A cellulose nanofibrils production method according to wherein the cellulose nanofibrils are separated from the longer fibers by a screening plate.3. A cellulose nanofibrils production method according to wherein the pulp to be refined has a feed consistency of no greater than 1.25%.4. A cellulose nanofibrils production method according to wherein the pulp to be refined has a feed consistency of less than 1%. There are some applications of Nano-Fibrillated Cellulose (NFC) that require greater purity or less long fiber than others. Conventional production of this purer product requires longer refining times to reach that condition. NFC, also commonly referred to as Microfibrillated Cellulose (MFC), Micro-Nano Fibrillated Cellulose (MNFC), Cellulose Nanomaterials, etc., are small cellulose fibers on the order of about 0.25 to 0.05 mm in length.The knotter uses a barrier, or screen cylinder, with perforations in the 8 to 12 mm diameter range being most common, although perforations as small as 6 mm or as large as 16 have been used. The most common size is 9.5 mm diameter. Pulp stock passes through this screen cylinder, while the larger pieces of uncooked wood chips cannot ...

DEVICE FOR CONCENTRATING OBJECT TO BE TREATED

A device for concentrating an object to be treated has a filter body in which a movable plate is disposed between adjacent annular fixed plates, the moveable plate being formed in the same annular shape. Sludge filtrate passes through filtrate inflow gaps between the fixed plates and the movable plate before being caused to flow into the filter body. The movable plate is moved so that solids in the sludge are kept from clogging the filtrate inflow gaps. A cleaning member is caused to rub against the outer peripheral surfaces of the fixed plates so that solids adhering to the outer peripheral surfaces of the fixed plates are scraped off. The movable plates of said device are caused to perform a circular movement by eccentric cams fixed to the shaft. The cleaning member is fixed to the shaft, and caused to rotate around the shaft by the rotation of the shaft so that solids adhering to the outer peripheral surfaces of the fixed plates are scraped off. 18-. (canceled)9. A device for concentrating object to be treated , comprising:a filter body that has a plurality of fixed plates, each of which has a through-hole and a circular outer circumferential surface and which are disposed at intervals, and movable plates, each of which has a through-hole and is disposed between adjacent fixed plates;a mixing tank that accommodates the filter body and to which an object to be treated containing liquid is fed;stirring means disposed outside the filter body and stirring the object to be treated, fed to the mixing tank;a shaft that extends in the filter body;a drive unit that rotationally drives the shaft;an eccentric cam that is secured to the shaft or formed integrally with the shaft and eccentrically disposed with respect to a central axial line of the shaft;coupling means for coupling the plurality of movable plates and the eccentric cam to each other so that the plurality of movable plates move in a circle, with an eccentricity of the eccentric cam being a radius of the circle; ...

CLASSIFYING DEVICE AND FIBROUS FEEDSTOCK RECYCLING DEVICE

A compactly configurable device that classifies material containing fiber can more reliably recover classified content. A classifier has a mesh disc with numerous holes, and separates screenings that pass through the holes from remnants that do not pass through; a defibrated material spray nozzle disposed to one side of the mesh disc sprays defibrated material containing fiber onto the mesh disc; a suction conduit disposed to the other side of the mesh disc suctions the waste screenings that pass through the holes; and a recovery conduit disposed on the one side of the mesh disc suctions the processing feedstock that do not pass through the holes and in the mesh disc and remain on the mesh disc. The mesh disc is disposed so the a position of the holes can move from a spraying position opposite the defibrated material spray nozzle to a suction position opposite the recovery conduit. The recovery conduit suctions, at the suction position, processing feedstock that was left at the spraying position. 1. A classifying device comprising:a first separator having multiple holes and configured to separate screenings that pass through the holes, and remnants that do not pass through the holes;a first spraying unit disposed on one side of the first separator and configured to spray feedstock containing fiber to separate from the one side onto the first separator;a first suction unit disposed on the other side of the first separator and configured to suction the screenings that have passed through the holes; anda second suction unit disposed on the one side of the first separator, and configured to suction, from the one side of the first separator, the remnants that do not pass through the holes in the first separator and remain on the first separator;the first separator being movably disposed so each of the holes can be repositioned from a first position opposite the first spraying unit to a second position opposite the second suction unit; andthe second suction unit ...

System and Method for Straining a Beverage

A system for beverage preparation, and methods for manufacturing and using same. The system includes a container defining a container cavity having a cavity top and bottom end and a plunger assembly configured to translate within the container cavity between the cavity top and bottom end. The plunger assembly can include a shaft having a shaft top and bottom end, a straining body disposed at the shaft bottom end and having a strainer top and bottom end and a strainer bottom surface, and a scraper assembly rotatably coupled about the strainer bottom end and configured to rotatably scrape the strainer bottom surface. 1. A system for preparing beverages comprising:a container defining a container cavity having a cavity top and bottom end; and a shaft having a shaft top and bottom end;', 'a straining body disposed at the shaft bottom end and having a strainer top and bottom end and a strainer bottom surface; and', 'a scraper assembly rotatably coupled about the strainer bottom end and configured to rotatably scrape the strainer bottom surface., 'a plunger assembly configured to translate within the container cavity between the cavity top and bottom end, the plunger assembly including2. The system for preparing beverages of claim 1 , further comprising a lid configured to couple about the cavity top end to generate a seal between the container and the lid.3. The system for preparing beverages of claim 2 , wherein the lid further comprises:a lid orifice defined by the lid that provides a passage into the container cavity when the lid is coupled about the cavity top; anda shaft passage defined by the lid, through which the shaft extends and is operable to translate.4. The system for preparing beverages of claim 3 , further comprising a lid cavity defined by a top rim claim 3 , the shaft and lid orifice disposed within the lid cavity.5. The system for preparing beverages of claim 1 , wherein the strainer body defines a gasket seat about a circumference of the strainer body ...

Method and Apparatus for Improved Solid-Liquid Filtration of Filter Cakes

The invention is related to a method and vibratory apparatus for the improved solid-liquid filtration of filter cakes, especially for dewatering finely divided thixotropic filter cakes, with the aid of a vibratory apparatus. Further, the invention relates to a filtration apparatus having a vibratory apparatus as described herein, and to the use of the vibratory apparatus for the solid-liquid filtration of filter cakes.

COALESCING FILTER SEPARATION SYSTEM AND METHOD

Embodiments of the invention provide a coalescing filter assembly including a filter element with longitudinally coupled filter lobes. The filter element can include a fluid inlet, filtration media, and fluid outlets. In some embodiments, the filter element can include a hydrophobic surface, a super-hydrophobic surface, or a super-oleophobic surface. Some embodiments include a coalescing filter assembly system that includes a filter housing defining a lower sump and an upper sump, a vessel inlet and outlet, and a tube sheet with a plurality of openings positioned between the upper and lower sumps. In some embodiments, one or more coalescing filter assemblies can be coupled to risers and to the plurality of openings. In some embodiments, fluid can be filtered by the system by passing fluid from the vessel inlet, through at least one fluid inlet, filtration media, and through a plurality of fluid outlets of at least one filter element. 1. A coalescing filter assembly comprising:at least one filter element comprising at least one opening at a first end, at least one fluid inlet, and a plurality of lobes comprising at least one side wall, the at least one side wall comprising a plurality of fluid outlets; andan open end cap positioned at the first end, the open end cap comprising a main opening fluidly coupled to the at least one opening; anda closed end cap positioned at a second end of the filter element, the closed end cap comprising a plurality of end cap lobes coupled to the plurality of filter lobes.2. The coalescing filter assembly of claim 1 , wherein a cross-section of at least a portion of the at least one filter element comprises a substantially trefoil shape.3. The coalescing filter assembly of claim 1 , wherein the plurality of filter lobes comprises at least three lobes having substantially similar shapes and dimensions.4. The coalescing filter assembly of claim 1 , wherein the at least one side wall is shared between the plurality of filter lobes.5. The ...

ENHANCED MOMENTUM CLEANING DEVICE FOR ROTATING BELT SCREENS AND FILTERS

The present technology is directed to fluid filtration systems having enhanced momentum cleaning devices for filter belts and associated systems and methods. In some embodiments, for example, a filtering system includes a fluid channel having a continuous-loop filter belt positioned therein. The filter belt can be configured to trap contaminants while allowing fluid to pass through the filter belt. The system further includes a first cleaning device proximate to the filter belt and a second cleaning device proximate to the filter belt and downstream of the first cleaning device. In particular embodiments the first cleaning device is a scraping blade that presses against the filter belt and the second cleaning device is one of a wave form, vibrational, or mixed-phase stream energy delivery device. 1. A filtering apparatus , comprising:a chamber having an inlet to a fluid flow pathway;a filter belt interposed in the fluid flow pathway, wherein the filter belt is configured to trap contaminants while allowing fluid to pass from the inlet along the fluid flow pathway; anda cleaning device positioned adjacent to the filter belt and configured to deliver a wave form energy to the filter belt.2. The filtering apparatus of wherein the wave form energy is at least one of sonic claim 1 , ultrasonic claim 1 , ultraviolet claim 1 , microwave claim 1 , or a combination thereof.3. The filtering apparatus of wherein the wave form energy is mechanically-imparted vibrational energy.4. The filtering apparatus of wherein the cleaning device is configured to continuously deliver wave form energy.5. The filtering apparatus of wherein the filter belt comprises a mesh filter.6. The filtering apparatus of wherein the filter belt comprises a continuous loop filter belt.7. The filtering apparatus of wherein the cleaning device is configured to deliver energy in a direction generally perpendicular to a direction of filter belt movement.8. A filtering system for filtering fluid having ...

OUTSIDE-IN WATER PURIFICATION SYSTEM

An outside-in liquid purification system includes a housing and a cartridge. The housing defines an interior space and includes an inlet, an outlet, walls extending between a top side and a bottom side, and an unfiltered volume. The cartridge is disposed within the interior space and includes a top cap adjacent the top side of the housing configured to direct liquid that enters the interior space to the unfiltered volume and a filter having an annular shape and extending between the top cap and the bottom side of the housing such that no portion of the unfiltered volume is below the filter with the filter defining a hollow vertical column such that liquid flows from the unfiltered volume through the filter into the column and then downward out of the housing through the outlet. 1. An outside-in liquid purification system comprising: an inlet at a top side of the housing;', 'an outlet at a bottom side of the housing;', 'walls extending between the top side and the bottom side; and', 'an unfiltered volume within the interior space;, 'a housing defining an interior space, the housing comprising a top cap adjacent the top side of the housing, the top cap having a top side that is sloped to direct liquid that enters the interior space to the unfiltered volume; and', 'a filter having an annular shape and extending between the top cap and the bottom side of the housing such that no portion of the unfiltered volume is below the filter, the filter defining a hollow vertical column such that liquid flows from the unfiltered volume through the filter into the column and then downward out of the housing through the outlet., 'a cartridge disposed within the interior space, the cartridge comprising2. The outside-in liquid purification system of claim 1 , wherein the cartridge further comprises:a bottom cap between the filter and the bottom side of the housing with the bottom cap extending laterally between the walls of the housing; andat least one sealing ring between the bottom ...

ROTOR ELEMENT AND A ROTOR FOR A SCREENING APPARATUS

The present invention relates to a turbulence element for use with a rotor and a rotor featuring turbulence elements. The rotor is used in a screening apparatus of the pulp and paper industry. The turbulence element has a longitudinal centerline (CL); two longitudinal edges, a leading edge and a trailing edge; two opposite ends, a first end and a second end; and two surfaces, a top surface and a bottom surface arranged between the leading edge and the trailing edge. The top surface is divided into a leading surface having its origin at the leading edge, and a trailing surface having its origin at the trailing edge. The leading edge and the leading surface are provided with undulations (U). 1. A screening apparatus for screening a pulp fiber suspension , the screening apparatus comprising:a screen cylinder; and a longitudinal centerline (CL);', 'a length (L) in a direction of an axis of the turbulence creating means;', 'two longitudinal edges, a leading edge and a trailing edge;', 'two opposite ends, a first end and a second end; and', 'a top surface facing the screen cylinder between the leading edge and the trailing edge, the top surface divided into a leading surface extending from the leading edge and a trailing surface extending from the trailing edge, the leading and trailing surfaces meeting at a peak of the rotor element, wherein the leading surface comprises undulations (U) configured to contact a fiber suspension and facilitate weakening and releasing a blockage in the screen cylinder., 'a rotor rotatable relative to the screen cylinder, the rotor comprising rotor elements thereon facing the screen cylinder, the rotor elements comprising2. The screening apparatus as recited in claim 1 , wherein the rotor elements comprise at least two extensions and at least two recesses recessions at the leading edge.3. The screening apparatus as recited in claim 1 , wherein the rotor elements have a chord length (C claim 1 , Cc) claim 1 , the chord length (C claim 1 , Cc) ...

SHEET MANUFACTURING APPARATUS

A sheet manufacturing apparatus includes a defibrating unit configured to defibrate stock material in a dry process, a transferring tube configured to transfer the stock material to the defibrating unit, and a magnet unit arranged such that a magnetic surface is exposed an inside of the transferring tube without being protruded inner than an inner surface of the transferring tube. 1. A sheet manufacturing apparatus comprising:a defibrating unit configured to defibrate stock material in a dry process;a transferring tube configured to transfer the stock material to the defibrating unit; anda magnet unit arranged such that a magnetic surface is exposed to an inside of the transferring tube without being protruded inner than an inner surface of the transferring tube.2. The sheet manufacturing apparatus according to claim 1 , whereinthe magnet unit includes a plurality of magnets arranged in a circumferential direction of the transferring tube.3. The sheet manufacturing apparatus according to claim 2 , wherein the plurality of the magnets are arranged such that magnetic poles different in polarity are opposed with each other.4. The sheet manufacturing apparatus according to claim 2 , wherein the plurality of the magnets are arranged such that magnetic poles different in polarity are arranged in the circumferential direction.5. The sheet manufacturing apparatus according to claim 2 , wherein the plurality of the magnets are arranged in a transferring direction of the stock material in the transferring tube.6. The sheet manufacturing apparatus according to claim 1 , wherein the magnet unit is attachable to and detachable from the transferring tube.7. The sheet manufacturing apparatus according to claim 1 , wherein the magnet unit and a portion of the transferring tube is detachable from another portion of the transferring tube.8. The sheet manufacturing apparatus according to claim 1 , wherein the magnetic surface of the magnet unit is flush with the inner surface of the ...

FIBER PROCESSING DEVICE AND FIBROUS FEEDSTOCK RECYCLING DEVICE

Technology for efficiently extracting fiber from a feedstock containing fiber. A subunit has a mesh drum configured as a rotatable cylinder with mesh in at least part of its surface, and a case that houses the mesh drum. The case has a first opening and a second opening that communicate with a first area, and a third opening that communicates with a second area. First screened material is supplied from the first opening to the first area. The subunit discharges from the third opening waste, which is a first component of the first screened material moved by an air current from the first area to the second area, and discharges from the second opening by an air current processing feedstock, which is a second component of the first screened material that does not pass through the mesh drum with the air current and remains in the first area. 1. A fiber processing device comprising:a mesh member configured as a rotatable cylinder having mesh in at least part of the circumferential surface; anda case housing the mesh member, and having a first opening and a second opening communicating with a first area inside of the mesh member, and a third opening communicating with a second area outside the mesh member; discharging from the third opening a first component of the separator feedstock that past by an air current through the mesh member and moved from the first area to the second area, and', 'discharging from the second opening a second component of the separator feedstock that did not pass through the mesh member by the air current and remained in the first area., 'the fiber processing device supplying separator feedstock containing fiber from the first opening to the first area,'}2. The fiber processing device described in claim 1 , wherein:the mesh member has multiple blades arrayed in the circumferential direction on the circumferential surface.3. The fiber processing device described in claim 1 , wherein:the mesh member has multiple openings that are longer along the ...

RAKE SCREENS AND NOVEL COMPONENTS THEREFOR

Rake systems for cleaning water streams and new and novel components for such rake systems. 1. A flexing apparatus for a flex rake , said flexing apparatus comprisingi. a pair of elongated rails, each rail having a top end, a bottom end, a first attachment point and a second attachment point, said first attachment point being located near the top end of each of the elongated rails, and each said second attachment point being located near the bottom end of each said elongated rail; 'iii. attached near each first support arm distal end is a second support arm for enhancing the movement of a chain and said bottom end and said top end of each said elongated rail has a roller for enhancing the movement of a chain adjacent each said elongated rail.', 'ii. a first support arm being attached at each attachment point, and each of the first support arms has a distal end, each said distal end being fixedly attached to the sidewall of an enclosure for said flexing apparatus;'}2. The flexing apparatus as claimed in wherein said means for enhancing the movement of a chain in d. is pivotal.3. The flexing apparatus as claimed in wherein said means for enhancing the movement of a chain in d. is a roller.4. The flexing apparatus as claimed in wherein said means for enhancing the movement of a chain in d. is a slide rail.5. A rake screen apparatus having a flexing apparatus of mounted to a framework of said rake screen apparatus.6. A dual wiper blade assembly for a rake system claim 1 , said dual wiper blade assembly comprising:a. a pair of support members each having a near end and a distal end, each said near end having pivotal attachment capability for attaching to a framework of a rake system;b. each said distal end of said support member having attached thereto, holders, each said holder having a bottom edge;c. each said bottom edge having a first notch therein and a spaced-apart second notch therein;d. a common first wiper blade attached in said first notches and a common second ...

Swirling flow generation device and deposition device

A swirling flow generation device includes a first pipe having a first pipe axis and through which gas passes, a second pipe having a second pipe axis in a direction different from the first pipe axis and communicates with downstream of the first pipe, and an airflow changing unit provided in the first pipe and having an opening eccentric from the first pipe axis. A swirling flow is formed in the second pipe as the center of the airflow passed through the opening flows into the second pipe at a position that is eccentric from the second pipe axis.

Conveyor Belt Filter Device

A conveyor belt filter device for mechanically cleaning a liquid that flows in a sewer and is polluted with solids includes an endless filter belt formed by filter elements that are connected to one another and can be pivoted against one another. A frame having a lower frame portion for forming a lower filter belt conveying path within the sewer and an upper frame portion for forming an upper filter belt conveying path outside of the sewer supports the belt. The upper frame portion has a solids removal device in the area of an upper deflection device for removing solids adhering to the filter elements. The upper filter belt conveying path is arranged at an angle of inclination α relative to the lower filter belt conveying path. 1. A conveyor belt filter device for mechanically cleaning a liquid that flows in a sewer and is polluted with solids , said filter device comprising:an endless filter belt formed by filter elements pivotally connected to one another and driven along a first conveyor path having a lower filter belt conveying path and an upper filter belt conveying path:a lower deflection device and at least one upper deflection device guiding said endless filter belt along said first conveyor path;a frame supportings the filter belt, the frame having a lower frame portion defining the lower filter belt conveying path and an upper frame portion defining the upper filter belt conveying path above said lower filter conveying path, the upper frame portion having a solids removal device proximal the upper deflection device for removing solids adhering to the filter elements, the upper filter belt conveying path being arranged at an angle of inclination α relative to the lower filter belt conveying path.2. The conveyor belt filter device according to claim 1 , including a deflection device arranged at a deflecting section of the frame to form the angle of inclination α proximal a transition between the lower filter belt conveying path and the upper filter belt ...

FIBER PROCESSING DEVICE, FIBROUS FEEDSTOCK RECYCLING DEVICE, AND CONTROL METHOD OF A FIBER PROCESSING DEVICE

Variation in the amount of material that is dispersed when material containing fiber is discharged by a sieve is suppressed. A fiber processing device has a drum that screens defibrated material containing fiber, a mesh belt that accumulates first screened material discharged from the drum, and a processor that processes the first screened material accumulated on the mesh belt. The drum operates at a first speed during processing by the processor; and when the drum starts from a stationary stop, a startup operation including a state in which the drum operates at a slower speed than the first speed executes for a specific time. 1. A fiber processing device comprising:a sieve configured to screen material containing fiber;an accumulator configured to accumulate the material discharged from the sieve; anda processor configured to process the material accumulated on the accumulator; control the fiber processing device to operate the sieve at a first speed during processing of the accumulated refined material by the processor; and', 'when the sieve starts from a stopped state, execute a startup operation in which the sieve operates at a lower speed than the first speed for a specific time after the sieve starts operating., 'a controller configured to2. The fiber processing device described in claim 1 , wherein:in the startup operation, the sieve operates to maintain the operating speed of the sieve at a second speed lower than the first speed for a specific time.3. The fiber processing device described in claim 1 , wherein:the startup operation includes a first operation of increasing the speed per unit time of the sieve for a period of time, and a second operation in which increase in the speed per unit time is less than in the first operation after the period of time.4. The fiber processing device described in claim 1 , wherein:the sieve starts from a stop with the material inside the sieve.5. The fiber processing device described in claim 1 , whereinthe controller is ...

SHEET MANUFACTURING APPARATUS

The sheet manufacturing apparatus includes a defibrating unit configured to defibrate a defibration object in the air, and a sheet forming unit configured to form a sheet by using at least a part of defibrated material that has been defibrated by the defibrating unit. The flow path configured to transfer the defibration object to the defibrating unit has a pipeline unit through which the defibration object passes, an opening having a size through which the defibration object does not pass on a surface of the pipeline unit, and an enclosure unit enclosing the pipeline unit such that the opening is positioned inside. 1. A sheet manufacturing apparatus , comprising:a defibrating unit configured to defibrate a defibration object in the air;a sheet forming unit configured to form a sheet by using at least a part of defibrated material that has been defibrated by the defibrating unit; anda flow path configured to transfer the defibration object to the defibrating unit, the flow path having a pipeline unit through which the defibration object passes, an opening having a size through which the defibration object does not pass on a surface of the pipeline unit, and an enclosure unit enclosing the pipeline unit such that the opening is positioned inside.2. The sheet manufacturing apparatus according to claim 1 , whereinthe opening is an opening formed in a mesh unit having a net-like form.3. The sheet manufacturing apparatus according to claim 2 , whereinthe mesh unit is arranged in an entire circumference in a circumferential direction of the pipeline unit.4. The sheet manufacturing apparatus according to claim 2 , whereinthe mesh unit is arranged in a part in a circumferential direction of the pipeline unit.5. The sheet manufacturing apparatus according to claim 1 , further comprising a crushing unit configured to crush material including fibers claim 1 , whereinthe defibrating unit is configured to defibrate a crushed piece, which has been crushed as the defibration object ...

SEPARATION DEVICE

A separation device having a housing () with a feed conduit () and a reject conduit (), between which conduits () and an accept conduit () of the housing () is a rotor unit () having a shaft () transverse to the through-flow direction of the separation device, which shaft rotates discs () attached to the shaft (), the outer surface and/or side surfaces of which discs are jagged, i.e. they have protrusions () and/or notches and/or these surfaces are substantially rough and the teeth () of at least two sieves () attached to the housing (), extend between the discs (), the first sieve () being between the reject conduit () and the accept conduit () and the second sieve () being between the feed conduit () and the accept conduit (). 1. A separation device for separating oversized nieces from a liquid and solids containing suspension , the separation device comprising:a housing with a feed conduit and a reject conduit, and, between the feed conduit and the reject conduit is an accept conduit;a rotor unit in the housing, wherein the rotor unit includes a shaft transverse with respect to a through-flow direction of the liquid and solids containing suspension flowing through the separation unit,wherein the shaft rotates discs attached to the shaft, and an outer surface and/or side surface of the discs has protrusions, humps and/or notches,the teeth of at least two sieves attached to the housing extend between the discs, wherein the at least two sieves include a first sieve between the reject conduit and the accept conduit, and a second sieve between the feed conduit and the accept conduit.2. The separation device according to claim 1 , wherein a slope of a front surface of the protrusions on the discs is less than a slope of a trailing edge of the protrusions on the discs.3. The separation device according to claim 1 , wherein the discs are attached to the shaft and/or to each other by planar support members and/or rod-like support members parallel to the shaft.4. The ...

DREDGING SLURRY SYSTEM WITH PULP TANK AND CONTROLLING METHOD OF THE SAME

A dredging slurry system with a pulp tank is introduced, which is applied for a wet paper pulp molding apparatus. The system comprises the pulp tank, a dredging slurry mold seat, an activating unit, a slurry-physical-feature detection unit and at least one inflow unit and a control unit. The slurry-physical-feature detection unit is used to detect at least one physical feature from a slurry within the pulp tank, during a plurality of different stages, thereby relatively outputting a physical feature data. The control unit is used to control the at least one inflow unit to a manner whether to pour a newly-added slurry into the pulp tank or not, depending upon the physical feature data. 1. A dredging slurry system with a pulp tank , which is applied for a paper pulp molding equipment , comprising:the pulp tank, constructed of a plurality of tank walls which jointly define a storage space for storing a slurry therein;a dredging-slurry die base, disposed with at least one dredging die; andan activating unit, used during a plurality of different stages, for driving the dredging-slurry die base to descend until the at least one dredging die is sunk below a liquid-surface of the slurry within the pulp tank and thereby dredging a portion of the slurry into the at least one dredging die, or for driving the dredging-slurry die base to ascend from below the slurry-liquid-surface until above the slurry-liquid-surface;wherein the dredging slurry system with the pulp tank, further comprises:a slurry-physical-feature detection unit, configured to detect at least one physical feature of the slurry within the pulp tank, during the plurality of different stages, and to output a physical feature data corresponding to the at least one physical feature;at least one inflow unit, used for selectively pouring a newly-added slurry into the pulp tank through at least one inlet of the pulp tank; anda control unit, configured to activate on driving of the at least one inflow unit, for pouring ...

COLLECTION DEVICE, COLLECTION METHOD, AND FIBROUS FEEDSTOCK RECYCLING DEVICE

Technology improving the effect of cleaning a filter by a high pressure air current is provided. A first dust collector has a housing into which a gas carrying capture material is carried; a filter having a filter element that captures the capture material, and an opening from which air passing through the filter element flows out; and an injector having a nozzle with an injection opening that injects a gas, moves the nozzle to a position in contact with the opening, and injects the gas from the injection opening when the nozzle is in contact with the opening 1. A collection device comprising:a housing into which a gas carrying capture material is carried;a filter having a filter element that captures the capture material, and an opening from which air passing through the filter element flows out; and 'injects the gas from the injection opening when the nozzle is in contact with the opening.', 'an injector having a nozzle with an injection opening that injects a gas, moves the nozzle to a position in contact with the opening, and'}2. The collection device described in claim 1 , wherein:the nozzle has a closure configured to contact the opening and close the opening when moved to the opening.3. The collection device described in claim 1 , wherein:the injector has a gas chamber to which a gas is supplied, and in response to pressure of the gas supplied to the gas chamber, expands and moves the nozzle toward the opening.4. The collection device described in claim 3 , wherein:when the nozzle is in contact with the opening, gas supplied to the injector is injected from the injection opening.5. The collection device described in claim 3 , wherein:the injector and the nozzle are connected, and communicate the injection opening with the gas chamber.6. The collection device described in claim 5 , wherein:the injector expands and moves the nozzle when pressure in the gas chamber reaches a first pressure;the nozzle has a valve mechanism that moves the gas from the gas chamber ...

FLUID FILTER

A filter element, assembly and method of filtering is disclosed. The filter element may comprise an outer filter having a top and a bottom, and an inner filter. The outer filter may define an interior space and a longitudinal axis. The interior space may extend from the top to the bottom of the outer filter along the longitudinal axis. The inner filter may be disposed inside the interior space. The inner filter may be offset along the longitudinal axis from the bottom of the outer filter. The offset may define a cavity disposed below the inner filter and adjacent to the bottom of the outer filter. The outer filter may be configured to guide fluid in a first direction and the inner filter may be configured to guide fluid in a second direction generally parallel to the longitudinal axis, the second direction different from the first direction. 1. A filter element comprising:an outer filter having a top and a bottom, the outer filter defining an interior space and a longitudinal axis, the interior space extending from the top to the bottom of the outer filter along the longitudinal axis; andan inner filter disposed inside the interior space, the inner filter offset along the longitudinal axis from the bottom of the outer filter, the offset defining a cavity disposed below the inner filter and adjacent to the bottom of the outer filter,wherein the outer filter is configured to filter and guide fluid in a first direction and the inner filter is configured to filter and guide fluid in a second direction generally parallel to the longitudinal axis, the second direction different from the first direction.2. The filter element of claim 1 , wherein the inner filter is rolled.3. The filter element of claim 1 , wherein the inner filter is corrugated media and the outer filter is cellulose media.4. The filter element of claim 1 , wherein the inner and outer filters are generally oval-shaped.5. The filter element of claim 1 , further comprising:a center tube disposed between the ...

DISC FILTER AND A METHOD OF CONSTRUCTING A DISC FILTER SECTOR

A disc filter sector comprising a trapezium tubular support frame, and a trapezium screen frame supporting a screen cloth, the trapezium filter medium dement 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. 1. A method of constructing a filtering apparatus including: a support structure , the support structure having filtrate compartments communicating with openings in the filter medium for receiving liquid drained through the latter , filter medium elements , each having an end mounted to the support structure by an overlying cap , the support structure having a filter medium element end support portion , and each cap having a filter medium element end overlying portion , the overlying portion including a plurality of tabs spaced apart along the longitudinal axis of the overlying portion , each tab having a first portion that , when the filtering apparatus is assembled , extends perpendicular to the support portion , and a second portion angled relative to the first portion and extending parallel to the longitudinal axis of the cap , the support portion having tab receiving openings spaced apart along the longitudinal axis of the support portions ,the method comprising the steps of:placing the filter medium element end on the support portion,placing an overlying portion over the filter medium element end and inserting each respective tab into a respective opening in the support portion, and thenmoving the overlying portion along the support portion, so that the tab second portion is then under the support portion, thus holding the cap on the support structure, with the filter medium element end trapped in between.2. A disc filter including two adjacent filter sectors , each filter sector comprising a tubular support frame structure , and a screen cloth supported by a filter medium element that covers the open area of the tubular support ...

FINE PARTICLE SEPARATING APPARATUS

The present invention provides a fine particle separating apparatus comprising: a first filter part having a first mesh part, mounted therein, for separating fine particles included in sludge according to size, and having a first section and a second section with the first mesh part therebetween; a first flow path mounted in the first section so as to allow the sludge to flow into the first filter part; a second flow path mounted in the second section so as to allow an effluent, having passed through the first filter part, to flow therein; a third flow path connected from the second flow path so as to discharge the effluent to the outside; a fourth flow path connected from one side of the second flow path, and mounted in the second section so as to allow at least a portion of the effluent flowing into the second flow path to flow to the first filter part; a fifth flow path mounted in the first section so as to allow the effluent, discharged by means of the fourth flow path, to pass through the first filter part and then flow therein; a storage tank through which the effluent flowing into the fifth flow path is discharged; and a first pump for generating a flow of the effluent, wherein the first mesh part is rotatably mounted in the first filter part. 1. A fine particle separating apparatus comprising:a first filter comprising a first mesh configured to separate fine particles contained in sludge according to size, the first filter having a first region and a second region with the first mesh placed therebetween;a first flow path mounted in the first region and configured to allow the sludge to flow therethrough into the first filter;a second flow path mounted in the second region and configured to receive an effluent after the effluent passes through the first filter;a third flow path connected to the second flow path and configured to discharge the effluent therethrough;a fourth flow path connected to one side of the second flow path and mounted in the second ...

METHOD FOR REMOVING THE PRECOAT LAYER OF A ROTARY FILTER

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. 1. A method of removing lime sludge-containing precoat accumulated on the filtering surface of a disc or drum filter filtering lime sludge of the chemical pulp industry , the method comprising:spraying a liquid towards the filtering surface above a scraper to remove the precoat from the filtering surface; andwhile spraying the liquid to remove the precoat rotating the filtering surface in a direction opposite to a rotating direction of the filtering surface during a lime sludge filtering process performed by the disc or drum filter.2. The method according to claim 1 , further comprising reversing a rotational direction of the filtering surface before or while the spraying of the liquid occurs claim 1 , wherein an inverter is used to cause the reversal of the rotational direction.3. The method according to wherein the spraying of the liquid includes spraying the liquid in a downwardly inclined direction to remove the precoat from the filtering surface.4. The method according to wherein the a pressure difference applied to the filtering surface is decreased or eliminated prior and/or during the spraying of the liquid to remove the precoat.5. The method according to wherein the spraying of the liquid sprays continues after the removal of the ...

METHOD AND APPARATUS FOR REDUCING THE THICKNESS OF A PRECOAT LAYER OF A DISC FILTER

Method and apparatus for reducing the thickness of a precoat-layer accumulated on the filtering surface of a filter disc from a solids-containing suspension in a basin of a disc filter, said disc filter having two or more filter discs arranged on a shaft and between them at least one drop chute provided with a scraper on both sides, which scraper scrapes the cake filtered from the suspension on the filtering surfaces of the filter discs into the drop, the layer thickness of the precoat on the filtering surface is reduced by shortening the distance between the tips of the scrapers and the filtering surface, and the precoat thickness reduction is accomplished for the precoats on the filtering surface of the two filter discs on both sides of the drop chute non-simultaneously. 113-. (canceled)14. A method for reducing the thickness of a precoat-layer accumulated on a filtering surface of a filter disk , comprising:accumulating at least one precoat-layer on at least one filtering surface of one or more filter discs that is partly or fully submerged in a solids-containing suspension in a basin of a disc filter, the disc filter having two or more filter discs arranged on a shaft;providing at least one drop chute between at least one pair of the filter discs, and a scraper on either side of the filter discs;scraping at least a portion of the precoat-layer on the filtering surfaces of the filter discs into the drop chute;reducing the precoat-layer thickness on the filtering surfaces by shortening distances between tips of the scrapers and the adjacent filtering surfaces;wherein the precoat-layer thickness is reduced non-simultaneously on precoat-layers accumulated on the filtering surfaces of two filter discs situated on both sides of a drop chute.15. The method of claim 14 , wherein the distances between the tips of the scrapers on two different sides of the filtering disc remain substantially unchanged during the precoat-layer thickness reduction.16. The method of claim 14 ...

SLOTTED BASKET FOR THE SOAKING AND STRAINING OF TOWELS, CLOTHS, AND OTHER HARD SURFACE ITEMS

A straining apparatus for use with a receptacle for the presoaking of items is provided. The straining device is sized such that a floor of the straining device is spaced from a floor of the receptacle to allow for any soils and/or stains of a presoaked item to pass into the receptacle. Therefore, when the items that have been presoaked are to be transferred to a cleaning apparatus, the soils and/or stains will not be transferred and will reside within the receptacle. An annual flange at an upper end of the straining device can rest on an upper rim of the receptacle to position the straining device within the receptacle such that the straining device will be suspended a distance above the receptacle floor. The straining device can also include slots for allowing the soiled solution to pass therethrough. 1. A straining device for use at least partially within a bucket , the device comprising:a body having a first end and opposite second end and including a plurality of apertures;a flange extending outwardly from the first end of the body; anda concave floor at the second end of the body and including at least one aperture to direct a liquid at least partially outwardly from the device;wherein the flange is configured to interact with a portion of the bucket such that the floor of the device is positioned at least partially away from a floor of the bucket.2. The straining device of claim 1 , further comprising at least one handle extending from the flange.3. The straining device of claim 2 , further comprising at least one latch extending away from the flange and configured to connect with a lid for covering the straining device and bucket.4. The straining device of claim 1 , wherein the flange of the straining device is configured to be contoured with and covering a flange of the bucket.5. The straining device of claim 1 , wherein the plurality of apertures of the body of the straining device comprise slots extending at least partially between the first and second ...

A Device for Separating a Medium Comprising a Mixture of a Solid Portion and a Fluid Portion

A device is for separating a medium comprising a mixture of a solid portion and a fluid portion. The device has a filter arrangement with a displaceable filter element having a plurality of openings that allow the fluid to be disposed through the openings while maintaining the solid portion on the filter element. The device further has an inlet for feeding the medium to the filter element and an outlet for discharging the solid portion from the filter element after that the fluid has been separated from the solid portion. The device further has an obstruction has an elastic element extending towards a surface of the filter element and adapted to contact the surface while allowing the medium to be displaced from the inlet to the outlet. 1. A device for separating a medium comprising a mixture of a solid portion and a fluid portion comprising a liquid , wherein the device comprises:a filter arrangement comprising a displaceable filter element having a surface with a plurality of openings adapted to allow the fluid to be disposed through the openings while maintaining the solid portion on the surface of the filter element,an inlet for feeding the medium to the filter element, andan outlet for discharging the solid portion from the surface of the filter element after that the fluid has been separated from the solid portion,wherein the device further comprises an obstruction having an elastic element extending towards the surface of the filter element and being adapted to contact the surface of the filter element and simultaneously interact with the medium while the solid portion is being separated from the fluid portion when the medium is being displaced from the inlet to the outlet.2. The device according to claim 1 , wherein the device further comprises means for providing a stream of drive fluid through the filter element claim 1 , thereby acting on the fluid with a pressure that pushes the fluid through the openings of the filter element while maintaining the solid ...

Solid-Liquid Separator and Solid-Liquid Separation System

This solid-liquid separator () includes a screw type dehydration unit () including a screw () and that performs primary dehydration on an object to be processed, and a rotary-body type dehydration unit () including a plurality of rotary bodies (), disposed subsequent to the screw type dehydration unit, and that performs secondary dehydration on the object to be processed on which the primary dehydration has been performed by the screw type dehydration unit. The screw rotates at a higher rotational speed than those of the rotary bodies. 1100a. A solid-liquid separator () comprising:{'b': 2', '22', '22', '23', '1, 'i': 'a', 'a screw type dehydration unit () including a screw () that includes a first rotary shaft () and feeds a supplied object to be processed with rotation of the first rotary shaft, and a layered filter body () that surrounds the screw and includes a first filtration groove (S), the screw type dehydration unit that performs primary dehydration on the object to be processed; and'}{'b': 3', '30', '30', '30', '2, 'i': b', 'a, 'a rotary-body type dehydration unit () including a plurality of rotary bodies () that include second rotary shafts () and layered rotary filter bodies () disposed along axial directions of the second rotary shafts and including second filtration grooves (S), the plurality of rotary bodies disposed in two upper and lower rows, the rotary-body type dehydration unit disposed subsequent to the screw type dehydration unit and that performs secondary dehydration on the object to be processed on which the primary dehydration has been performed by the screw type dehydration unit; wherein'}the screw rotates at a higher rotational speed than those of the rotary bodies.2. The solid-liquid separator according to claim 1 , wherein the screw type dehydration unit and the rotary-body type dehydration unit are integrally provided.35. The solid-liquid separator according to claim 1 , further comprising a flocculant supply unit () that supplies a ...

CENTRIFUGAL SCREEN ASSEMBLY

A screen assembly () for a horizontal screen machine has a screen body () diverging axially from an inlet end (). A base wall portion () mounts the screen body () for rotation and includes eight substantially radial webs (). An annular wall portion () is located adjacent the inner end () and includes drain passages () adapted to drain discontinuities in a bonding layer comprising a moisture cure polyurethane sealant/adhesive overlying the annular wall portion (). Wear resistant tungsten carbide elements () include a plurality of apertures () extending through a wear face to a bonding face. Voids () in the discontinuous bonding layer () provide fluid interconnection between the apertures () and the drain passages (). A replaceable screen member () is releasably secured at an inner ring frame () and an outer ring frame () of the screen body (). 2. A centrifugal screen assembly according to claim 1 , wherein the annular wall portion includes drain passages adapted to drain discontinuities in said bonding layer.3. A centrifugal screen assembly according to claim 2 , wherein the drain passages are selected from one or more a plurality of drainage grooves opening through an edge of the annular wall portion adjacent the screen member claim 2 , and a plurality of apertures passing radially through the annular wall portion.4. A centrifugal screen assembly according to claim 3 , wherein the apertures passing radially through the annular wall portion are a plurality of spaced claim 3 , substantially axial slots.5. A centrifugal screen assembly according to claim 1 , wherein said wear resistant elements include a bonding face adhered to said discontinuous bonding layer and an opposite wear face.6. A centrifugal screen assembly according to claim 5 , wherein the plurality of wear resistant elements comprise ceramic elements.7. A centrifugal screen assembly according to claim 6 , wherein the ceramic elements are formed form a material selected from the group comprising carbides ...

FILTER FOR A TREATMENT APPARATUS

A centrifugal filter unit for an apparatus, wherein the apparatus is for use in the treatment of a substrate with a treatment formulation, the centrifugal filter unit comprising; a) a housing having an outlet configured to allow a filtrate to exit the centrifugal filter unit; b) a filter rotatably mounted in the housing, wherein the filter comprises a first end proximate a first end of the housing, a second end proximate a second end of the housing and a side wall connecting the first end of the filter and the second end of the filter, wherein the first end, second end and side wall of the filter define a filter chamber, and wherein the side wall comprises perforations configured to allow liquid to pass throughout to prevent solid material from passing through; c) a lid configured to substantially seal the first end of the housing; d) an inlet configured to allow a feed to enter the filter chamber; e) a cap at the first end of the filter, wherein the cap comprises an aperture that cooperates with the inlet to allow the feed to enter the filter chamber; f) a drive means for rotating the filter; and g) an impeller, wherein the impeller is comprised in the filter chamber; wherein the centrifugal filter unit is configured such that when the impeller rotates, the feed is drawn in to the filter chamber through the inlet and liquid is expelled through the perforations. 1. A centrifugal filter unit for an apparatus , wherein the apparatus is for use in the treatment of a substrate with a treatment formulation , the centrifugal filter unit comprising;a) a housing having an outlet configured to allow a filtrate to exit the centrifugal filter unit;b) a filter rotatably mounted in the housing, wherein the filter comprises a first end proximate a first end of the housing, a second end proximate a second end of the housing and a side wall connecting the first end of the filter and the second end of the filter, wherein the first end, second end and side wall of the filter define a ...

FILTER SCRAPER

A filter apparatus and method for cleaning filter elements. The filter elements, each including a filter body with an external surface enclosing a filter passage, extend along a longitudinal axis of a vessel housing. A scraper element is disposed about the external surface of each filter body and travels along the longitudinal length of the filter body via a rotational screw to remove deposits. A lower air inlet is included on the vessel to loosen deposits on the filter surfaces, such as during or prior to scraping.

CROSS-FLOW FILTER ASSEMBLY WITH IMPROVED CLEANING ASSEMBLY

A cross-flow filter assembly () including: a cylindrical filter () having an inner periphery () enclosing filter region () extending along an axis (X) from an opposing feed end () and an effluent end (); and a cleaning assembly () axially-aligned within the filter region () and comprising at least one radially extending cleaning member () biased against the inner periphery () of the filter (), wherein the cleaning assembly () is adapted to rotate about the axis (X) to remove debris from the inner periphery () of the filter (); and is characterized by a compressive member () providing a continuous radially outward force that biases the cleaning member () against the inner periphery () of the porous screen (). 110. A cross-flow filter assembly () comprising:{'b': 12', '24', '14', '26', '16', '18, '(i) a cylindrical filter () comprising a porous screen () defining an inner periphery () enclosing filter region () extending along an axis (X) from an opposing feed end () and an effluent end ();'}{'b': 20', '16', '22', '18', '20', '22', '26, '(ii) a feed inlet () located adjacent to the feed end (), and an effluent outlet () located adjacent to the effluent end (), wherein both the feed inlet () and effluent outlet () are in fluid communication with the filter region (); and'}{'b': 32', '26', '34', '14', '12', '32', '14', '12, '(iii) a cleaning assembly () axially-aligned within the filter region () and comprising at least one radially extending cleaning member () biased against the inner periphery () of the filter (), wherein the cleaning assembly () is adapted to rotate about the axis (X) to remove debris from the inner periphery () of the filter ();'}{'b': 10', '40', '34', '14', '24, 'wherein the filter assembly () is characterized a compressive member () providing a continuous radially outward force that biases the cleaning member () against the inner periphery () of the porous screen ().'}21040. The assembly () of wherein the compressive member () comprises a spring- ...

Device for Filtering Fiber Suspensions

A vat () with an inlet () for a suspension. A rotatable inner axial part () with peripheral channels () and at least one disc-shaped filter () mounted to the inner axial part (). Within the vat the suspension is contained between partition walls (A) in which the filters rotate. The filter () has inner flow channels () for transporting filtrate to channels () in the inner axial part (). The filtrate from the channels () is combined in one end of the inner axial part () into at least one vacuum forming downpipe (). Sprays () () detach material deposited on the filters. Mounted to the top of the partition walls (A), which form receiving chutes (), are guide plates (A) for guiding material down into the chutes. Spray nozzles (B) are located below the guide plate(s) and between the partition walls (A) to clean the filtering surface (). 1. A device for filtering fiber suspensions , comprising:a vat with an inlet for connection to a source of fiber suspension;an inner axial part with peripheral channels mounted within the vat to rotate about a rotational axis;at least one disc-shaped filter element mounted to the inner axial part at an angle to the rotational axis, wherein the at least one disc-shaped filter element has a plurality of filter sectors;wherein the filter element has an external filtering surface and inner flow channels for transporting filtrate, which passes through the filtering surface, to at least one filtrate channel in the inner axial part:devices for detaching material filtered-out of the fiber suspension and deposited on the filtering surface;a chute having partition walls which is arranged on a side of the vat and positioned to receive detaching material filtered-out of the fiber suspension after it is detached from the filtering surface;a washing and deflection device for washing the filtering surface and transporting away the filtered-out material down into the chute; andwherein the washing and deflection device has at least one guide plate and ...

Sand and Solids Bypass Separator

A sand bypass separator is provided for separating particulate matter from a fluid mixture in a production well and directing the separated particulate matter away from a pump intake. The separator includes an outer tube, an inner tube positioned within the outer tube, and a bypass. The outer tube has a plurality of slots to allow the fluid mixture to enter the separator between the outer tube and the inner tube. As the fluid mixture moves downward, the fluid mixture reaches a downward velocity sufficient to allow the particulate matter in the fluid mixture to continue downward as the fluid is drawn into the inner tube through the pump intake. The bypass extends from above the pump intake to below the pump intake to collect and direct the separated particulate matter separated below the pump intake. 1. A particulate separator for use with a production well producing a fluid mixture including particulate matter , the separator comprising:an outer tube comprising a closed top end, an open bottom end, and a conduit extending therethrough, wherein the outer tube comprises a plurality of slots extending from an exterior surface of the outer tube to the conduit;an inner tube positioned within the conduit of the outer tube, wherein the inner tube comprises a pump intake at a bottom end of the inner tube positioned below the plurality of slots of the outer tube, the plurality of slots allowing the fluid mixture to enter a channel between the outer tube and the inner tube and to flow downward toward the pump intake, wherein the fluid mixture reaches a downward velocity sufficient to allow the particulate matter in the fluid mixture to continue downward as the fluid is drawn into the inner tube through the pump intake; anda bypass extending from above the pump intake to below the pump intake, wherein the bypass is configured to direct the particulate matter separated from the fluid mixture downward from above the pump intake to below the pump intake to thereby inhibit the ...

Filtering sieve

FIELD: technological processes, filters. SUBSTANCE: invention is related to the field of liquid cleaning from hard substances. Filtering sieve for extraction of hard substances from liquid flow comprises filtering belt put in motion and installed in liquid flow. Herewith belt consists of two side link chains, between which bearing rods and filtering elements partially equipped with hooks pass. All filtering elements are divided into groups. Every group of filtering elements is installed on two bearing rods independently on previous and further group of filtering elements. Besides, filtering elements have parts protruding above bearing rods, which are directed only in direction from group of filtering elements. These protruding parts are installed without overlapping with protruding parts of neighboring group of filtering elements. EFFECT: increased reliability of device. 12 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 361 043 (13) C2 (51) МПК E03B 3/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006136912/03, 21.01.2005 (24) Дата начала отсчета срока действия патента: 21.01.2005 (73) Патентообладатель(и): ГРАММЕЛЬСБЕРГЕР Аксель (DE) R U (30) Конвенционный приоритет: 19.03.2004 DE 102004014022.7 (72) Автор(ы): ГРАММЕЛЬСБЕРГЕР Аксель (DE) (43) Дата публикации заявки: 27.04.2008 2 3 6 1 0 4 3 (45) Опубликовано: 10.07.2009 Бюл. № 19 (56) Список документов, цитированных в отчете о поиске: ЕР 0542191 A1, 19.05.1993. GB 2045634 A, 05.11.1980. ЕР 0578559 A1, 12.01.1994. GB 2021433 A, 05.12.1979. RU 2013105 C1, 30.05.1994. 2 3 6 1 0 4 3 R U (86) Заявка PCT: EP 2005/000573 (21.01.2005) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 19.10.2006 (87) Публикация PCT: WO 2005/097290 (20.10.2005) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Е.И.Емельянову (54) ФИЛЬТРОВАЛЬНОЕ РЕШЕТО (57) ...

Endless chain screen cleaner and filterarm for this chain

Each link (39, 40) of the chain consists of a row of filter arms (30) which are mounted pivotably on two spindles, namely an upstream spindle (14) and a downstream spindle (13), which are staggered along the chain. Each filter arm has a front leading edge (33) and is continued by an upstream extension arm (35) having a leading edge (38). The extension arms (35) of a link (39) are interposed between the arms (30) of the adjacent upstream link (40) and are mounted pivotably on the downstream spindle (14) of the said adjacent link. The leading edge (38) of the extension arm (35) of each filter arm (30) forms substantially a rectilinear continuation of the leading edge (33) of the arms (30). The invention is used in the purification of industrial effluent. <IMAGE>

Separation device

The invention relates to a separation device, in particular for sewage treatment plants, having a screen, which is conducted over reversal devices, composed of series-connected screen sections. Each screen section is composed of screen plates and ejector plates and each screen section is equipped with at least two axles, of which the axle lying in front in the direction of motion carries one end of the screen plates and guides the front end of the ejector plates, while the end of the ejector plates lying in front in the direction of motion is mounted on that axle which carries the rear end in the direction of motion of the screen plates of the preceding screen section. Each screen plate carries a projection pointing in the direction of the reversal device and each reversal device is furnished with at least two groups of carrier devices by which the projection of the screen plates can be brought into engagement and which are arranged peripherally to the reversal devices and in parallel to the axis of the reversal devices. <IMAGE>

Band filter for liquid effluent channel - made of hinged link chain with thorough self-cleaning action

Many rows of rigid links are hinged together as an endless chain which is partly immersed in a current of liquid flowing through an open-topped channel. The rising side of the chain faces the current and collects solids which it carries up clear of the liquid surface. Each link fits on two successive hinge pins and is extended beyond its trailing pin, the extension being cranked at the end outwards from the chain; as each link passes around a sprocket near the bottom of the channel, its extension rises from the flat screen formation for the cranked end to sweep up solids from the bottom; in passing around a top sprocket, each link extension again rises temporarily to discharge collected deposits. The filter is esp. suitable for filtering polluted liq. effluents from factories etc., and water passing along artificial canals.

Method and device for cleaning paper raw materials containing impurities

The cleaning of paper pulp suspensions contaminated by heavy components for the production of paper raw material, comprises supplying the suspension into a closed screening apparatus (2) by a feed pump (11) without further purification or deflaking from a repulping apparatus in a primary or secondary hydropulper (1). A process stream is allowed to pass through a cylindrical or conical sieve (3) with slit-shaped screening apertures and discharged as accepted stock stream while the substances retained at the sieve are discharged as rejected stream from the screening apparatus. The cleaning of paper pulp suspensions contaminated by heavy components for the production of paper raw material, comprises supplying the suspension into a closed screening apparatus (2) by a feed pump (11) without further purification or deflaking from a repulping apparatus in a primary or secondary hydropulper (1). A process stream is allowed to pass through a cylindrical or conical sieve (3) with slit-shaped screening apertures and discharged as accepted stock stream while the substances retained at the sieve are discharged as rejected stream from the screening apparatus. The suspension is fed in from the outside of the sieve in a radially inward manner. A drum pulper is used in combination with an immediately downstream drum screen as the repulping apparatus. The rejected stream is continuously discharged from the screening apparatus and is set in such a manner that its volumetric portion in the suspension flowed through the screening apparatus amounts to 20%. The rejected stream is partly supplied to a separation device (5). The heavy components are discharged from the separation device by a heavy component sluice. The accepted stock stream is refluxed into the screening apparatus. The rejected stream is diluted by the addition of purified reflux water in such a way that the consistency in the separation device reduces to 1.5% or less. The quantity of the rejected stream is measured before ...

Sortierer zur Reinigung einer Fasersuspension

Die Erfindung betrifft einen Sortierer (1) zur Reinigung einer Fasersuspension mit zumindest einer Abtrenneinheit (1', 1 ", 1'''), welche ein Gehäuse, einen parabelförmigen oder annähernd parabelförmigen Rotor (4, 4', 4", 4"'), einen Siebkorb (5) einen Akzeptraum (6) und einen Rejektauslass (9', 9", 9''') umfasst. Der erfindungsgemäße Sortierer ist dadurch gekennzeichnet, dass der Rejektauslass (9', 9", 9''') im Bereich des maximalen Durchmessers des Rotors (4', 4", 4"') angeordnet ist und dass im Bereich des maximalen Durchmessers des Rotors (4', 4", 4''') eine oder mehrere Einrichtung(en) (12a', 12b') zur Unterbrechung der axialen Strömung angeordnet ist/sind.

Device and method for separating mixed substances of different flowability

Die Erfindung betrifft eine Vorrichtung (10) zum Trennen von miteinander vermischten Stoffen unterschiedlicher Fließfähigkeit, umfassend ein Gehäuse mit Seitenwänden, eine umlaufend angetriebene Hohltrommel (11) mit perforierter Mantelfläche (12), ein von außen an diese unter Umschlingung eines Teils des Umfangs der Hohltrommel (11) anpressbares, endloses Pressband (14), einen Produkt-Einzugskeil (18), eine Stützvorrichtung mit wenigstens einem Stützelement (15), das auf der der Hohltrommel (11) entgegengesetzten Seite des Pressbandes (14) angeordnet ist, sowie ein Abstreifmittel (19) zum Abstreifen des Pressguts von der Hohltrommel (11), die sich dadurch auszeichnet, dass das Abstreifmittel (19) aktiv ansteuerbar ist, derart, dass das Abstreifmittel (19) während des Trennprozesses zwischen einer Arbeitsposition zur Herstellung einer Wirkverbindung mit der Mantelfläche (12) der Hohltrommel (11) in Richtung der Hohltrommel (11) und einer Warteposition zur Erreichung eines Abstandes zwischen Abstreifmittel (19) und Hohltrommel (11) hin und her bewegbar ist. Des Weiteren betrifft die Erfindung ein entsprechendes Verfahren. The invention relates to a device (10) for separating substances of different flowability mixed with one another, comprising a housing with side walls, a circumferentially driven hollow drum (11) with perforated lateral surface (12), an externally to this under wrapping a portion of the circumference of the hollow drum (11) pressable, endless press belt (14), a product feed wedge (18), a support device with at least one support element (15) which is arranged on the hollow drum (11) opposite side of the press belt (14), and a Abstreifmittel (19) for stripping the pressed product from the hollow drum (11), which is characterized in that the stripping means (19) is actively controllable, such that the stripping means (19) during the separation process between a working position for establishing an operative connection with the lateral surface (12) the ...

Filter apparatus for eliminating impurities from liquids, in particular from dispersion paints

A filter apparatus for eliminating impurities from liquids, in particular from dispersion paints, in a vessel (1), is provided with a sieve (2) rotating in the vessel interior, the interior of which sieve is open at one end to the clear liquid chamber (18) for the filtered liquid and is closed at its other end or is likewise open to a clear liquid chamber, and is provided with a liquid feed (15) in an annular chamber (16) (unfiltered liquid chamber) between the vessel interior wall and the sieve (2). In addition, a filtrate outlet (16) from the unfiltered liquid chamber (18), a sealing ring between the sieve outer wall and the vessel interior wall to separate the clear liquid chamber (18) from the unfiltered liquid chamber (16) and a liquid outlet (20) from the clear liquid chamber are provided. At least one annular channel (21) is arranged in the unfiltered liquid chamber (16) running round the sieve (2), which annular channel is furnished with at least one compressed air or flushing liquid feed (22) and which is equipped with a multiplicity of spraying orifices or spraying nozzles (23) distributed over its periphery and directed onto the sieve (2). <IMAGE>

Method of manufacturing a fibrous product

Methods and apparatus for acoustic fiber fractionation

Methods and apparatus for acoustic fiber fractionation using a plane ultrasonic wave field interacting with water suspended fibers circulating in a channel flow using acoustic radiation forces to separate fibers into two or more fractions based on fiber radius, with applications of the separation concept in the pulp and paper industry. The continuous process relies on the use of a wall-mounted, rectangular cross-section piezoelectric ceramic transducer to selectively deflect flowing fibers as they penetrate the ultrasonic field. The described embodiment uses a transducer frequency of approximately 150 kHz. Depending upon the amount of dissolved gas in water, separation is obtained using a standing or a traveling wave field.

Methods and apparatus for acoustic fiber fractionation

Methods and apparatus for acoustic fiber fractionation using a plane ultrasonic wave field interacting with water suspended fibers circulating in a channel flow using acoustic radiation forces to separate fibers into two or more fractions based on fiber radius, with applications of the separation concept in the pulp and paper industry. The continuous process relies on the use of a wall-mounted, rectangular cross-section piezoelectric ceramic transducer to selectively deflect flowing fibers as they penetrate the ultrasonic field. The described embodiment uses a transducer frequency of approximately 150 kHz. Depending upon the amount of dissolved gas in water, separation is obtained using a standing or a traveling wave field.

Pressure Screen and Method for Dilution for a Pressure Screen

A method for dilution for a pressure screen comprising a rotor rotating inside a screen a distance to the screen, includes supplying feeding stock into a screening zone formed in the spacing between the rotor and the screen with some of the feeding stock passing through the screen into an accept area to become accept, and the remaining feeding stock discharged into a reject area as reject flow. The amount of the dilution water added into the reject flow is 0.8 to 3.5 times the amount of the reject flow by volume. Additionally, a pressure screen comprises a dilution water adding apparatus adapted to add dilution water directly into the reject area of the pressure screen, wherein the amount of the dilution water added into the reject flow is 0.8 to 3.5 times of the amount of the reject flow by volume. 1. A method for dilution for a pressure screen having a rotor rotating inside a screen with spacing between the screen and rotor , the spacing defining a screening zone into which feeding stock is supplied , with a portion of feeding stock passing through the screen into an accept area and becoming accept , and the remaining feeding stock discharged into a reject area as reject flow , comprisingadding dilution water directly into the reject area in an amount equal to 0.8 to 3.5 times of the amount of the reject flow.2. The method according to claim 1 , wherein the amount of the dilution water added into the reject area is 1.6 to 2.2 times the amount of the reject flow.3. The method according to claim 1 , comprising one or more rotors with a plurality of foils claim 1 , the foils having one or more ribs on a front and a rear side thereof to enhance the distribution of the dilution water in the screening zone.4. A pressure screen for separating a feeding stock into an accept portion and a reject portion claim 1 , comprisinga dilution water adding apparatus configured for adding dilution water directly into the reject area of the pressure screen, whereinthe amount of the ...

Process for Separating Trichomes from Non-Trichome Materials

A process for separating trichomes from non-trichome materials, and more particularly to a process for separating trichomes that utilizes an aeration step, trichomes produced therefrom, and fibrous structures produced using such trichomes are provided. 1. A process for extracting trichomes from non-trichome materials , the process comprising the steps of:providing a mixture of trichomes and non-trichome materials by separation from a plant source;adding water to float a first floatable portion of the mixture;removing at least a portion of the first floatable portion;using air to float a second floatable portion of the mixture; andremoving at least a portion of the second floatable portion.2. The process according to wherein the process further comprises the step of adding one or more surfactants to the mixture.3. The process according to wherein at least one of the surfactants is present in the water.4. The process according to wherein at least one of the surfactants comprises a surfactant selected from the group consisting of: anionic surfactants claim 2 , amphoteric surfactants claim 2 , nonionic surfactants claim 2 , zwitterionic surfactants claim 2 , cationic surfactants claim 2 , and mixtures thereof.5. The process according to wherein at least one of the surfactants comprises a surfactant selected from the group consisting of: anionic surfactants claim 4 , amphoteric surfactants claim 4 , nonionic surfactants claim 4 , and mixtures thereof.6. The process according to wherein at least one of the surfactants comprises a surfactant selected from the group consisting of: anionic surfactants claim 5 , amphoteric surfactants claim 5 , and mixtures thereof.7. The process according to wherein at least one of the surfactants comprises an anionic surfactant.8. The process according to wherein the anionic surfactant comprises an alkyl ethoxy sulfate.9. The process according to wherein the anionic surfactant comprises an alkyl sulfate.10. The process according to wherein ...

METHOD OF OPERATING A RAKE SYSTEM

A method may include providing a rake system with a framework, a chain having a plurality of skimmers, an elongated rail, a first support arm, a second support arm, a first guide device, a second guide device, and/or a screen, rotating the chain, receiving debris between the chain and the screen, and/or moving the debris along the screen, via a skimmer of the plurality of skimmers, to discard the debris. 2. The method of claim 1 , wherein moving the debris along the screen includes moving the debris in a vertical direction relative to the screen.3. The method of claim 2 , including applying pressure to at least one skimmer of the plurality of skimmers into the screen to prevent the debris from falling downward.4. The method of claim 3 , wherein the pressure is generated at least in part via the elongated rail claim 3 , the first support arm claim 3 , and the second support arm.5. The method of claim 1 , including moving the chain relative to the screen in a substantially horizontal direction.6. The method of claim 5 , wherein moving the chain relative to the screen includes pivoting the first support arm and the second support arm relative to the framework.7. The method of claim 5 , wherein moving the chain relative to the screen includes moving the elongated rail relative to the framework of the rake system.8. The method of claim 6 , wherein moving the chain relative to the screen includes maintaining engagement between the first guide device and the chain and between the second guide device and the chain.9. The method of claim 1 , wherein rotating the chain includes rotating a sprocket via a motor.10. The method of claim 9 , wherein the chain is suspended from a top portion of the sprocket claim 9 , and wherein the rake system does not include a lower sprocket.12. The method of claim 11 , wherein moving the debris along the screen includes moving the debris in a vertical direction relative to the screen.13. The method of claim 12 , including applying pressure to ...

Rotary filter

Filterzentrifuge mit vorgeschaltetem fluessigkeitsabscheider

Nestepitoisten aineseosten, etenkin kuitulietteiden ja/tai kuitumassal ietteiden puhdistussihtilaite

Фильтровальное решето

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2006 136 912 (13) A (51) ÌÏÊ B01D 33/04 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006136912/15, 21.01.2005 (71) Çà âèòåëü(è): ÃÐÀÌÌÅËÜÑÁÅÐÃÅÐ Àêñåëü (DE) (30) Êîíâåíöèîííûé ïðèîðèòåò: 19.03.2004 DE 102004014022.7 (72) Àâòîð(û): ÃÐÀÌÌÅËÜÑÁÅÐÃÅÐ Àêñåëü (DE) (43) Äàòà ïóáëèêàöèè çà âêè: 27.04.2008 Áþë. ¹ 12 (87) Ïóáëèêàöè PCT: WO 2005/097290 (20.10.2005) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé, ðåã.¹ 513 R U (57) Ôîðìóëà èçîáðåòåíè 1. Ôèëüòðîâàëüíîå ðåøåòî äë èçâëå÷åíè òâåðäûõ âåùåñòâ èç ïîòîêà æèäêîñòè ñ ïðèâîäèìîé â äâèæåíèå, óñòàíàâëèâàåìîé â ïîòîêå æèäêîñòè ôèëüòðîâàëüíîé ëåíòîé (5), êîòîðà èìååò äâå áîêîâûå çâåíüåâûå öåïè (9), ìåæäó êîòîðûìè ïðîõîä ò íåñóùèå ñòåðæíè (10), è êîòîðà èìååò ôèëüòðîâàëüíûå ýëåìåíòû (15), ïî ìåíüøåé ìåðå ÷àñòè÷íî ñíàáæåííûå êðþêàìè (22), ïðè ýòîì âñå ôèëüòðîâàëüíûå ýëåìåíòû (15) ïîäðàçäåëåíû íà ãðóïïû ðàñïîëîæåííûõ ð äîì äðóã ñ äðóãîì ôèëüòðîâàëüíûõ ýëåìåíòîâ (15), è ïðè ýòîì êàæäà ãðóïïà ôèëüòðîâàëüíûõ ýëåìåíòîâ (15) ðàñïîëîæåíà íà äâóõ íåñóùèõ ñòåðæí õ (10) íåçàâèñèìî îò ïðåäûäóùåé è ïîñëåäóþùåé ãðóïï (14) ôèëüòðîâàëüíûõ ýëåìåíòîâ (15), è ôèëüòðîâàëüíûå ýëåìåíòû (15) èìåþò âûñòóïàþùèå íàä íåñóùèìè ñòåðæí ìè (10) ÷àñòè (20), îòëè÷àþùååñ òåì, ÷òî âñå ôèëüòðîâàëüíûå ýëåìåíòû (15) èìåþò âûñòóïàþùèå ÷àñòè (20), êàæäà èç êîòîðûõ íàïðàâëåíà òîëüêî â íàïðàâëåíèè îò ãðóïïû (14) ôèëüòðîâàëüíûõ ýëåìåíòîâ (15), è ýòè âûñòóïàþùèå ÷àñòè (20) ðàñïîëîæåíû áåç ïåðåêðûòè ñ âûñòóïàþùèìè ÷àñò ìè (20) ñîñåäíåé ãðóïïû (14) ôèëüòðîâàëüíûõ ýëåìåíòîâ (15). 2. Ôèëüòðîâàëüíîå ðåøåòî ïî ï.1, îòëè÷àþùååñ òåì, ÷òî âñå ôèëüòðîâàëüíûå ýëåìåíòû (15) îäíîé ãðóïïû (14) ñíàáæåíû âûñòóïàþùèìè íà âíåøíåé ñòîðîíå ôèëüòðîâàëüíîé ëåíòû (5) êðþêàìè (22). 3. Ôèëüòðîâàëüíîå ðåøåòî ïî ï.2, îòëè÷àþùååñ òåì, ÷òî êðþêè 22 îáðàçîâàíû íà âûñòóïàþùèõ ÷àñò õ (20) ...

Rotary filter

내용없음. None.

Device for separating aqueous suspensions

Reservoir for separating granulated material and liquid by draining

FIELD: mechanical engineering; separation of materials. SUBSTANCE: proposed contains lower section and upper section with cover. Device for separating liquid and granulated material is arranged in lower section. Device for draining excess liquid from reservoir is arranged in upper section. Said device consists of definite number of drain bushing passing through reservoir cover. Position of upper edges of drain bushings arranged under cover can be adjusted in height. EFFECT: provision of uniform draining of excess liquid flowing out in process of draining from filled-up reservoir. 14 cl, 4 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 281 138 (13) C2 (51) ÌÏÊ B01D 21/00 B01D 36/04 (2006.01) (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2003123782/15, 24.12.2001 (30) Êîíâåíöèîííûé ïðèîðèòåò: 10.01.2001 (ïï.1-14) LU 90713 (73) Ïàòåíòîîáëàäàòåëü(è): ÏÎËÜ ÂÓÐÒ Ñ.À. (LU) (43) Äàòà ïóáëèêàöèè çà âêè: 27.02.2005 R U (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 24.12.2001 (72) Àâòîð(û): ÊÅÐØÅÍÌÅÉÅÐ Ãè (LU), ÂÀÍ-ÕÎÔ Âîëüôãàíã (LU), ÕÀÐÒÖ Æàí (LU) (45) Îïóáëèêîâàíî: 10.08.2006 Áþë. ¹ 22 2 2 8 1 1 3 8 2 2 8 1 1 3 8 R U (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 11.08.2003 C 2 C 2 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: GB 1458382 À, 15.12.1976. DE 3211865 À, 13.10.1983. SU 757174 A, 25.08.1980. SU 1099977 A, 30.06.1984. SU 709115 À, 26.01.1980. SU 738635 A, 08.06.1980. SU 1161139 À, 15.06.1985. SU 733704 À, 18.05.1980. SU 850130 À, 30.07.1981. US 2070201 A, 09.02.1937. DE 3608190 A, 24.09.1987. US 4555340 À, 26.11.1985. (86) Çà âêà PCT: EP 01/15305 (24.12.2001) (87) Ïóáëèêàöè PCT: WO 02/055177 (18.07.2002) Àäðåñ äë ïåðåïèñêè: 101000, Ìîñêâà, Ì.Çëàòîóñòèíñêèé ïåð., 10, êâ.15, "ÅÂÐÎÌÀÐÊÏÀÒ", ïàò.ïîâ. Ì.Á.Âåñåëèöêîìó (54) ÐÅÇÅÐÂÓÀÐ ÄËß ÐÀÇÄÅËÅÍÈß ÄÐÅÍÈÐÎÂÀÍÈÅÌ ÑÌÅÑÈ ÃÐÀÍÓËÈÐÎÂÀÍÍÎÃÎ ÌÀÒÅÐÈÀËÀ È ÆÈÄÊÎÑÒÈ (57) Ðåôåðàò: Èçîáðåòåíèå ïðåäíàçíà÷åíî äë ðàçäåëåíè ...

ベルトプレス型脱水装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Precipitation apparatus

清洗叶片和清洗头

本发明涉及清洗叶片和清洗头。一种用于从工业工艺流中去除滤液的过滤器组件。所述组件包括壳体，过滤器元件被设置在所述壳体中。所述过滤器元件具有表面，所述滤液被捕获靠在所述表面上。清洗叶片所附接的清洗头被设置在所述壳体中且去除所述捕获的滤液。致动器管道延伸通过所述壳体。在所述致动器管道内部的是第一磁体。受压气体被选择性地施加到所述致动器的端部上以使所述第一磁体在所述管道中移动。第二磁体被附接到所述清洗头上。所述第二磁体被磁耦合到所述第一磁体上以使得所述第二磁体随所述第一磁体移动。因此，所述第一磁体的移动被所述第二磁体传递至所述清洗头以使得所述清洗叶片移动靠在所述过滤器元件上。

Process and apparatus for producing cellulose pulp of improved quality

A process and apparatus for the preparation of improved cellulose pulps is provided, in which defibered pulp is screened for removal of shives, and fibers with low bonding ability are removed in hydrocyclones, and rejects from the hydrocyclones are treated in refiner. In the process a specific combination of characteristics for the hydrocyclones and the volumetric flow is used in order to prepare pulps which give products of improved qualities, such as higher tensile strength, tear strength, light-scattering, surface smoothness, and specially low shive content.

一种简易防堵污水过滤装置

本发明涉及一种简易防堵污水过滤装置，有效解决污水过滤时，清理不及时等问题;其解决的技术方案是包括支架，支架上安装有左右两个第一支撑杆和处于中间位置的多个第二支撑杆；多个第二支撑杆上安装有一个能沿第二支撑杆上下移动并向上复位的过滤体;所述的过滤体的上方有固定在支架上的进水口；每个第二支撑杆上均安装有一个随过滤体一同上下移动的水箱，水箱内安装有虹吸管，水箱上固定有竖杆，竖杆的上端铰接有挡板，挡板的内端固定有配重块；每个第二支撑杆上均安装有限位块；水箱随过滤体下降后，挡板倾斜角度变化，过滤体内的水能够从挡板与水箱上端的缝隙中进入到水箱中;本发明自动清理，避免了滤网长时间的堵塞或高负载。

Batch-type filter operating under pressure

Periodically operating pressure filter for the concentration of a solid matter suspension, comprising a filtering tank with an input conduit for introducing the suspension to be filtered under pressure, and a drain conduit for removal of the concentrated sludge, and a number of filtering elements suspended from the ceiling, through which the filtrate flows and which are internally in communication with a filtrate collecting tank located above and which thereby collect sludge on their outer surface. The sludge has been arranged to be periodically detached by making the pressure inside the filtering element higher than on its outside. The filtrate is under atmospheric pressure in the collecting tank. For detaching the sludge periodically from the outer surfaces on the filtering elements the pressure has been arranged to be removable from the filtering tank by opening for the suspension residing there, an exit flow, whereby the filtrate in the collecting tank will pass under hydrostatic pressure effect in counter-current fashion through the filtering elements.

Assistant apparatus of sludge removal apparatus

본 고안은 오. 폐수 처리장에서 오. 폐수에 포함된 협잡물을 제거하여 정화하는 장치에 관한 것으로, 타공부와 이송부와 탈수부로 구성되며 스크류를 협잡물의 이송방법으로 구성한 협잡물 제거 장치에 있어서, 타공부의 스크린을 길이 방향으로 포용하는 원통 형상으로 전면에 걸쳐 격자 무늬의 그릴이 형성되며 내경에 다수개의 협잡물 유도판이 형성되고 스크류와 동시에 회전하는 바스켓 드럼과, 상기 바스켓 드럼의 내부에서 스크린에 고정된 스크래퍼와, 상부에 길이 방향으로 호퍼가 형성된 스크린으로 구성되며 바스켓 드럼에서 협잡물을 걸러서 이송하고 스크래퍼와의 접촉에 의해 탈리하여 스크린의 호퍼로 유입함으로써 협잡물을 분리. 제거하는 구성으로 오. 폐수의 처리 용량이 향상되고 대규모의 오. 폐수 수로에서 적용 가능한 협잡물 제거 장치의 보조 장치가 제공된다. This design is oh. From wastewater treatment plants. An apparatus for removing and purifying contaminants contained in wastewater. The apparatus includes a perforation part, a conveying part, and a dehydration part, and comprises a cylindrical shape for enclosing the screen of the perforating part in a longitudinal direction. A grid grille is formed over the entire surface, and a plurality of contaminant guide plates are formed in the inner diameter, and a basket drum rotates simultaneously with the screw, a scraper fixed to the screen in the basket drum, and a hopper formed in the longitudinal direction on the top. It consists of a screen, and removes the contaminants by filtering and transporting the contaminants from the basket drum, detaching by contact with the scraper and entering the hopper of the screen. Go to the configuration to remove. Improved treatment capacity of waste water and large scale o. Provided is an auxiliary device of a debris removal device applicable in a wastewater channel.

Web filter-press for suspension dehydrating

1519634 Moving band press filter HAMAKO HARTMANN MASCHINENBAU KG 5 Aug 1975 [13 Aug 1974] 32641/75 Heading B1D An endless band of filter cloth 10 is folded over to form a tube and passed through a filling and filtering zone and one or more pressing zones (2-4, Fig. 1, not shown) then opened out and cleaned. In the filling and filtering zone a flat nozzle 13 injects liquidsolids mixture under pressure from a pump into the tube which is then carried through a supporting means in a direction between horizontal and vertically downwards. The supporting means in Fig. 3a comprises a pair of stationary channels with filtrate drainage grooves 15. The channels may be relatively adjusted and may converge together. Other cross-sections, including circular (Fig. 3b not shown) are possible. In Fig. 5a the supporting means comprises two endless belts, which may be grooved or mesh-like (Figs. 8a-8d not shown). In Fig. 6 (not shown) the belts are replaced by rows of rollers. In the pressing zone(s) (Figs. 9, 10 not shown) the filter cloth tube and contents pass between further endless belts, converging in the direction of travel and backed by rollers which are urged together by respective pairs of rams (22). Filtrates from the filtering and pressing zones are separately collected. The endless belts could be common to filtering and pressing zones (Fig. 4 not shown). Modular construction however allows any required number of pressing zones to be added to the apparatus. At the cleaning zone (Fig. 12) the cloth band 10 is opened up and solids removed by upper plate 60 with a peripheral rubber or plastics scraper (Fig. 13, not shown), and the cloth is cleaned by water sprays 29 and/or rotary brushes and/or compressed air nozzles. Lower plate 60 collects the wash water. Upper plate 60 is pivoted, adjustable towards the cloth and may be vibrated to assist solids removal.

Stifled cistern is prevented to hydraulic engineering

本发明公开了一种水利工程防堵蓄水池，属于水利工程技术领域。一种水利工程防堵蓄水池，包括箱体，箱体顶面右侧固设有电动机，电动机输出端套设有锥齿轮A，锥齿轮A左方设有转轴，转轴外部相对于锥齿轮A的位置套设有锥齿轮B，转轴上端贯穿流通管底面延伸至其内部并同轴固定连接有叶轮，转轴下端贯穿箱体顶面延伸至箱体内部并同轴固定连接有转盘，转盘底面前端固设有固定柱，固定柱外部套设有连杆A，连杆A后端固设有套杆，套杆内部插设有延长杆，延长杆前端与套杆前侧内壁之间固设有压缩弹簧。本发明可避免水中的泥沙集中到出水管内部而造成堵塞，且通过流通管可将箱体内部的泥沙清理出去，降低了工作人员清理箱体的劳动强度。

FILTER FOR CONTINUOUS SUSPENSION FILTRATION UNDER PRESSURE

1. Фильтр для непрерывной фильтрации суспензии под давлением, содержащий резервуар (1) под давлением; вращающиеся фильтровальные элементы (2), расположенные в резервуаре (1) под давлением, причем фильтровальный элемент (2) выполнен с возможностью проходить за каждый оборот один цикл фильтрации; зоны фильтрации в жидкой и газообразной фазе; каналы (4') для фильтрата, которые соединяют фильтровальные элементы (2); раздельные отводы (14, 15) фильтрата для каждой зоны и устройство для управления отдельными зонами фильтрата посредством распределительного диска (44), который содержит выпуски для фильтрата для жидкой и газообразной фазы, отличающийся тем, что по направлению цикла фильтрации перед выпуском фильтрата жидкой фазы предусмотрена зона (46) удаления воздуха.2. Фильтр по п. 1, отличающийся тем, что раздельные отводы (14', 15') для фильтрата соединены с сепараторными резервуарами (25), которые расположены на более низком уровне.3. Фильтр по п. 2, отличающийся тем, что сепараторные резервуары (25) соединены с отводами для фильтрата посредством так называемых барометрических ловушек (14', 15') для конденсата, имеющих вертикальную длину от 6 до 10 м.4. Фильтр по любому из пп. 1-3, отличающийся тем, что зона (46) удаления воздуха соединена с сепараторным резервуаром (25) посредством отдельного трубопровода (46'). РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2014 140 464 A (51) МПК B01D 24/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014140464, 08.10.2014 (71) Заявитель(и): АНДРИЦ АГ (AT) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ПРАДЕР Райнер (AT) 11.10.2013 AT A784/2013 Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара A 2 0 1 4 1 4 0 4 6 4 R U Стр.: 1 A (57) Формула изобретения 1. Фильтр для непрерывной фильтрации суспензии под давлением, содержащий резервуар (1) под давлением; вращающиеся фильтровальные элементы (2), расположенные в ...