Abstract: An array of spaced dewatering panels mounted in a spaced relationship in a framework (collectively referred to herein as a “panel support system” or “panel system”) is described wherein the panels are coupled to the framework in a manner that permits them to be pivoted or swiveled between at least a first orientation (or position) and a second orientation (position).

Abstract: An air filter has a filter housing and a filter element inserted in the interior of the filter housing. The filter element has an inflow surface and an outflow surface and a filter medium that extends between inflow and outflow surfaces. The filter element has a circumferentially extending seal arranged in the area of the inflow surface or outflow surface and interacting in the mounting position with the sealing surface of the filter housing to separate inlet and outlet of the air filter. A support device clamps the filter element transversely to the insertion direction in the filter housing by a transverse clamping action in a support area that is spaced from the seal. The transverse clamping action results by an insertion movement of the filter element into the filter housing by interaction of the filter element with inner sides of the filter housing.

Abstract: A flat filter element to be mounted in a filter housing has an inflow surface and an outflow surface downstream of the inflow surface in a flow-through direction. A filter medium extend between the inflow surface and the outflow surface. A sealing section extends circumferentially relative to the flow-through direction. A seal fastened to or interacting with the sealing section is provided, wherein the seal, when the flat filter element is mounted in a filter housing, separates an inlet of the filter housing for air to be purified from an outlet of the filter housing for purified air. A first functional element section is arranged on at least one circumferential side of the filter medium so as to be spaced apart from the circumferentially extending sealing section. The first functional element section is attached to a lateral strip and the lateral strip is attached to the filter medium.

Abstract: A flat filter element has a filter medium and a sealing section that seals the flat filter element relative to a filter housing. A support element section is arranged on a circumferential side of the filter medium outside of the sealing section and supports the flat filter element relative to an inner side of the filter housing, wherein the support element section projects past the filter element in at least one direction. The filter housing has a mounting opening through which the flat filter element is inserted into the interior where the flat filter element is arranged such that the inlet is separated from the outlet of the filter housing. A projection arranged on an inner side of the filter housing supports under mechanical tension the support element section of the flat filter element in a mounting position of the flat filter element in the interior.

Abstract: The invention relates to a filter element, a method for manufacturing the filter element, and use. The filter element (1) is formed of a solid-liquid filter fabric (2) and has at least one separately manufactured support element (14) fastened to it. The support is a plate-like piece.

Abstract: An air filter has a filter housing and a filter element inserted in the interior of the filter housing. The filter element has an inflow surface and an outflow surface and a filter medium that extends between inflow and outflow surfaces. The filter element has a circumferentially extending seal arranged in the area of the inflow surface or outflow surface and interacting in the mounting position with the sealing surface of the filter housing to separate inlet and outlet of the air filter. A support device clamps the filter element transversely to the insertion direction in the filter housing by a transverse clamping action in a support area that is spaced from the seal. The transverse clamping action results by an insertion movement of the filter element into the filter housing by interaction of the filter element with inner sides of the filter housing.

Abstract: A filter that separates and adapts to the volume of rainwater based on the adaptability of the variations of the volume of rain, being self-cleaning and eliminating the debris from the piping, made of a pipe (3) connected by the entrance (4) and to the filter that separates and adapts to rainwater's volume. Here the filters (10), (11) and (13) move, programmed by the calibrator (5), to adapt and absorb the largest volume of rain possible (6), eliminating the rubbish (15) through the exit (14) and guiding the water (6) to the exit (7).

Abstract: A system for dewatering a stream of slurry has a first and a second separator. The first separator removes objects above a first size, to produce a stream of primary treated slurry. The second separator removes objects above a second size from the primary treated stream, the second size being smaller than the first size. Optionally, a third separator removes objects above a yet smaller third size from the stream of secondary treated slurry. The first separator has a plurality of sieve mat supports alternately connected to a main support frame section and a movable support frame section so that the flexible sieve mat can be agitated by the movable support frame section, a collector being provided for collecting the primary treated slurry passing through the flexible sieve mat. In an optional step, water contained in the separated solids is removed.

Abstract: A system for dewatering a stream of slurry has a first and a second separator. The first separator removes objects above a first size, to produce a stream of primary treated slurry. The second separator removes objects above a second size from the primary treated stream, the second size being smaller than the first size. Optionally, a third separator removes objects above a yet smaller third size from the stream of secondary treated slurry. The first separator has a plurality of sieve mat supports alternately connected to a main support frame section and a movable support frame section so that the flexible sieve mat can be agitated by the movable support frame section, a collector being provided for collecting the primary treated slurry passing through the flexible sieve mat. In an optional step, water contained in the separated solids is removed.

Abstract: The invention relates to a filtration cell that comprises a tank with a bottom wall (2) and four side walls extending upwards from the bottom wall as well as an upward opening, the four side walls including two opposite longitudinal walls (3, 5) as well as a front facing wall (4) and a rear facing wall connecting them, a filtration bed (7) supported in the tank, an outlet opening for discharging the filtrate, and a covering flap (24) protruding outwards from the top of one of said longitudinal walls, the longitudinal wall (5) opposed to that fitted with the flap including a lower portion (25) extending upwards from the bottom wall (2) and an upper portion (26) extending slantedly upwards and inside the tank from the top of said lower portion (25), and/or the front facing wall (4) comprises a bottom portion (27) extending upwards from the bottom wall (2) and a top portion (28) extending slantedly upwards and inside the tank from the top of said bottom portion (27).

Abstract: A product that is an apparatus for removing debris from water containing such debris using a perforated plate, a backer plate, and a skimmer, positioned adjacent the back of the perforated plate to provide a means of removing debris from the perforated plate without scraping the debris from the perforated plate, the skimmer bar and the backer plate being synchronized in their movement.

Abstract: A vertical membrane module unit is allowed to be installed even at a place with a low ceiling. A housing containing a vertical membrane module unit is held by a housing holder. The housing holder holds the housing tiltably such that the housing can be positioned with the longitudinal direction of the membrane module unit being substantially vertical when treated water is extracted, and the housing can be positioned with the longitudinal direction of the membrane module unit being substantially horizontal when the membrane module unit is removed from the housing.

Abstract: A filtration device for filtration, comprising at least one filter unit in a closed filter housing, comprises at least one filtration station and a loading and removing station. The filter housing can be opened in at least one parting plane transversely to the longitudinal axis of the filter housing and is movable between the loading and removing station and the filtration station.

Abstract: A system (10) for extracting liquid from a mass comprising a portable platform (12) having an upper surface (14), a system mass input (16), a polymer feeding and blending system (18) on the upper surface (14), a liquid extraction assembly (40) on the upper surface (14), and piping (22) having a first section (24) between the system mass input (16) and the polymer feeding and blending system (18), and a second section (26) between the polymer feeding and blending system (18) and the liquid extraction assembly (40). The system is configured to have mass inputted into the system mass input (16), transport the mass to the polymer feeding and blending system (18) through the first section (24) of the piping, inject polymer into the mass in the polymer feeding and blending system (18), and transport the mass from the polymer feeding and blending system (18) to the liquid extraction assembly (40). Pressure from the mass forced into the liquid extraction assembly (18) forces liquid in the mass to exit the mass.

Abstract: There is disclosed an apparatus for removing solids from water in a canal during or immediately after a rainstorm. The apparatus includes a plurality of filters and a carrier. The filters filter the solids from the water while moving in and taking impact from the water. The carrier carries the filters in a cycle.

Abstract: A rotary filter is disclosed, comprising filtering cells rotating in a circular movement, including a fixed collector portion comprising at least two compartments each having arc-shaped upward opening and a central separator chamber, including a downward opening communicating the separator chamber with each of said compartments, said downward opening being arranged at a level lower than said upward opening of each of the compartments, the downward opening of the central separator chamber and the upward opening of each compartment of the collector portion partly overlapping in vertical projection.

Abstract: An apparatus for filtering fluid substances is used with a machine for injecting meat products. The device comprises a container (4) comprising filter units (3a, 3b) communicated independently with a suction outlet (6) through respective valve devices (9a, 9b) that can be moved between open and closed positions. Each filter unit (3a, 3b) is mounted to the end of a pivoting connecting conduit (22a, 22b) which is connected to the respective valve device (9a, 9b) thereof. Each conduit (22a, 22b) and filter unit (3a, 3b) can pivot between a lowered operating position, whereby the valve device (9a, 9b) is open and the filter unit (3a, 3b) is submerged in the fluid, and an erect maintenance position, whereby the valve device (9a, 9b) is closed and the filter unit (3a, 3b) and the fixing means (13) thereof emerge out from the fluid and are accessible so that they can be released.

Abstract: There is disclosed a device for removing small solids from water. The device includes an axle and a plurality of rotational filtering units installed on the axle. While rushed and hence rotated by water and small solids, the rotational filtering units filter the small solids. The device consumes little energy other than the water provides.

Abstract: The invention relates to a sieving device for mechanically separating and extracting solid bodies or solid matter from a liquid current, in particular, to sieve gratings for process or effluent currents or for use in sewage treatment plants or hydroelectric power stations. Said device comprises a number of sieving panels (2, 2′, 2″) which are substantially arranged in a transverse direction to the direction of flow of the liquid current, are linked together, and which form a revolving endless sieve belt (1) immersing into the liquid current (20). The device also comprises a drive for the endless sieve belt (1), whereby the sieving panels (2, 2′, 2″) are arranged successively in such a way that the revolving motion of the endless sieve belt (1) is comprised within one single plane which lies substantially perpendicular to the direction of flow of the liquid current (20).

Abstract: A biological filter for filtering a stream of falling liquid, the filter comprising a body movable between a first and a second position, and a first filter portion coupled to the body such that the first filter portion is positioned under the stream when the body is in the first position. The filter further comprises a second filter portion coupled to the body such that the second filter portion is positioned under the stream when the body is in the second position, wherein the body reciprocates between the first and the second positions when located below the stream of liquid.

Abstract: The present invention is directed to a continuous, portable dredging system that employs a series of screens and gravity separation devices with flocculation to remove sediments from the dredged slurry. The system produces a treated water stream having low solids content and a recovered solids product having a low water content.

Abstract: A pressure plate filter having a filter vessel with an upper cylindrical section and a lowers downwardly tapering conical section. A stack of spaced-apart filter plates is mounted on a support frame within the filter vessel for pivoting about an offset axis between a lowered filtering position in which the filter plates are horizontally arranged within the conical sections to a raised filter cake discharge position in which the filter plates are supported above the conical section in a sloped position. The stack of filter plates is raised and lowered by means of a hoist assembly. In a further embodiment, the filter includes a separation frame which can move relative to the support frame and which causes the filter plates to move apart relative to each other when placed in the raised discharge position.

Abstract: A pressure plate filter having a filter vessel with an upper cylindrical section and a lowers downwardly tapering conical section. A stack of spaced-apart filter plates is mounted on a support frame within the filter vessel for pivoting about an offset axis between a lowered filtering position in which the filter plates are horizontally arranged within the conical sections to a raised filter cake discharge position in which the filter plates are supported above the conical section in a sloped position. The stack of filter plates is raised and lowered by means of a hoist assembly. In a further embodiment, the filter includes a separation frame which can move relative to the support frame and which causes the filter plates to move apart relative to each other when placed in the raised discharge position.

Abstract: A drive mechanism for a tilting-pan filter assembly comprises an annular carrier for supporting a plurality of filter pans for motion along a circular transport path. The carrier is moved along the circular path by drive componentry including a plurality of individual hydraulic motors having pinions meshing with a ring gear on the carrier at respective equispaced drive points. The hydraulic motors are driven by a single pump which supplies a hydraulic fluid under variable pressure and variable flow rate. The hydraulic motors are connected in parallel to one another and to the pump in a closed loop hydraulic circuit. The pump may be driven by an electric motor which absorbs braking energy.

Abstract: A liquid sample filtration apparatus includes: a) a module retaining filter elements; b) a filter clamping and fluid injection apparatus positioned relative to the module to engage a filter element thereon, and includes a pair of first and second opposing engageable members to sealing engage a filter element therebetween; c) an inlet tube connected to an opposing engageable member; d) an outlet tube connected to an opposing engageable member; e) a motor to move the module relative to the filter clamping and injection apparatus to register filter elements on the module to the clamping and injection apparatus; and f) a motor associated with the filter clamping and injection apparatus to move the opposing engageable members into substantial sealing fluid communication relative to a filter element on the module.

Abstract: A continuous filtration device, comprising cells (1) arranged in a carousel around an axis of rotation and each presenting a horizontal axis of tilt, follower elements (9, 10), carried by a lever (7), at least one stationary guiding element (13, 14) for each of the follower elements, an additional lever (21, 22) fixedly connected to each cell, a mobile stop (23, 24) and an elastic element (29, 30) connecting the stop to a fixed support (25, 26) and acting on the stop in a first direction, the additional lever cooperating with the stop by acting on it in directions always approximately opposite to the aforesaid first direction.

Abstract: A process for the treatment of refinery oily sludges to produce an oily fraction that is reprocessed in the refinery into (i) salable products and (ii) a solid residue meeting environmental regulatory agency requirements for disposal in non-hazardous solid waste landfills. The process includes mixing the refinery oily sludge with a particulate filter aid and preferably a single solvent selected from refinery intermediate and product streams and contacting this mixture with plate filters in a closed filter vessel. A cake residue forms on the filter plates and a filtrate mixture of oil, water and solvent is produced. The filtrate is separated into an oily fraction and a water fraction. The oily fraction is rerouted to refinery operating units for processing into salable products. The water fraction is routed to a refinery water treatment system. When filter cake residue has built to a predetermined level, charge to the filter vessel is discontinued.

Abstract: A pool skimmer of the invention includes a pair of rectangular frames hinged together along adjacent first short frame members by a plastic hinge member extending substantially the length of the short frame members, a pair of poles attached at an intermediate position along each of the short frame members and a net held by each of the frames. The pool skimmer is almost as wide as the pool being skimmed. The hinged frames are folded together when the skimmer is not being used. In use, the skimmer is unfolded and two operators, each holding a pole, position the skimmer in the water at one end of the pool and walk along opposite sides of the pool with the skimmer in the water between them. At the other end of the pool, the skimmer is removed from the water, debris collected in the net is emptied and the skimmer is folded for storage.

Abstract: The invention relates to a device for filtering on a substantially horizontal plane, comprising a filter cloth (50) and a structure (51) for supporting the filter cloth capable of tilting about a horizontal axis (47) and comprising a peripheral groove (48) of uniform cross-section. The cloth is fastened to the support by a hollow tubular gasket (55) made of elastic or substantially elastic material, arranged to interact with the groove; the tubular gasket is designed to distort transversely between a free or contracted state in which it can be easily introduced into the groove into which the filter cloth has been inserted beforehand, and a distorted or dilated state in which it locks the cloth inside the groove by pressure.

Abstract: The filtering cell includes a tank having a base wall and a filter bed supported above the base wall which divides the tank into an upper compartment for receiving a substance to be filtered and a lower compartment for receiving a filtrate. The base wall includes an inclined end section adjoining an inclined drainage channel and further includes flow-off sections arranged on either side of the drainage channel. Because the drainage channel does not extend the full length of the cell, it can have a greater slope than in prior art cells, thereby enhancing fluid flow through the cell.

Abstract: Vacuum rotary filter with horizontal filtering plane comprising a distributor consisting of a distributor part, a collector part and a gas separation chamber. The collector part (110) consists of a single vat divided into three compartments (139, 140, 141, respectively), for the mother water, the first washing liquid and the second washing liquid. The compartments may be interconnected so as to enable a fluid circulation in an imposed direction. The collector part also comprises a sector for annex operations and presuction.

Abstract: A method of filtering utilizes a filtering apparatus having a filter member presenting a plurality of flow paths therethrough of a form to retain at least a portion of the material to be extracted the method comprising the steps of passing a stream of fluid to be filtered in a forward direction from an inlet through the filter member, moving the filter member out of the stream of fluid, changing the geometry of the filter member under gravity, e.g. by inverting the filter member, to assist in removal of extracted material from the filter member.

Abstract: Tilting filter pans is disclosed having generally parallel leading and trailing sidewalls which are sloped at an angle to permit increased filtration rates for a predetermined filtering efficiency, and also to permit increased filtering efficiency where the feed rate is constant. The feed is a slurry from which the liquid is removed, and the filter cake being dumped by rotation of each filter pan at a predetermined point of movement of the filter pan along a cyclical path. Hold-down devices having a reduced volume are also used in combination with the improved pan design, so that an increased filtration rate is possible due to decrease in the required filter cake height. A cam arrangement is provided for turning the pans with minimum stress in a minimum length of pan travel, while avoiding collisions between adjacent pans and while permitting washing of each pan.

Abstract: A device for recovering cleaning particles from a liquid stream after it has traversed a heat exchanger, comprises a pivotable inclined sieve and a baffle plate upstream of an outlet and the lower edge of the sieve for generating between the plate and the sieve a vortical flow which induces the particles to flow downwardly along the sieve to the outlet.

Abstract: Tilting filter pans having generally parallel leading and trailing sidewalls which are sloped at an angle to permit increased filtration rates for a predetermined filtering efficiency, and also to permit increased filtering efficiency where the feed rate is constant. Drainage of the pans may also be improved. The feed is a slurry from which the liquid is removed, and the filter cake is dumped by rotation of each filter pan at a predetermined point of movement of the filter pan along a cyclical path.

Abstract: A cell filter having a series of filtering cells and a distributor for collecting and adjusting the distribution of fluids passing through the cell filtering surface. Each cell has a planar filtering bed composed of a filtering cloth bearing on a rigid apertured support. Fluid passes through the cloth onto the cell bottom which slants toward a drain channel. The drain channel slants toward a discharge duct connected to a distributor. Guide members in the distributor fractionate, divide, and direct the fluid flowing towards the discharge duct into two parallel adjacent streams. The guide members are a series of baffle plates, located along the top length of the drain channel. The baffle plates are slanted, the plate farthest from the low end of the drain channel having the steepest slant.

Abstract: An improved array of filter elements for a self-cleaning filter screen apparatus for continuous removal of suspended solids in a fluid. The filter elements are staggeringly interconnected in the form of an endless belt for movement through the fluid. Each filter element includes an arm with a first hub at the front end and a curved rake or hook at the other end. The arm has a front arm portion or shank portion connected to a rear arm portion. A second or intermediate hub is connected between the front arm portion and the rear arm portion. A row of the filter elements are mounted on two shafts. The front hubs from a rearward row of filter elements are positioned between the intermediate hubs of the forward row of filter elements and each hub is spaced from the adjacent hub. The scraper-separator means is sized to fix the distance between adjacent filter elements similarly connected on the same shafts.

Abstract: A filter system comprising a tank and a cage assembly releasably mounted therein. The cage assembly comprises a tube plate and a plurality of filter tubes projecting upwardly therefrom. A plurality of replaceable cartridges are telescoped over each of the tubes. Below the tubes is a plenum chamber for receiving filtered fluid. The entire cage assembly is removable from the filter tank by providing lifting trunnions on the cage assembly and by providing a yoke assembly for lifting the cage assembly out by the trunnions. The yoke assembly will automatically grasp the trunnions when it is inserted in the filter tank. A safety mechanism is provided for securing the yoke assembly on the trunnions.When the cage assembly is lifted out of the filter tank, a mechanism is provided for automatically tilting the cage assembly to dump the filter cartridges from the cage assembly. The cage assembly is then secured on a pallet which can be moved to another location for reloading clean filter cartridges on the filter tubes.

Abstract: This invention relates generally to rotary filter apparatus which are capable of removing solids from water currents, and more specifically to an endless filter belt comprising specially-shaped filter plates provided between wire ropes or screen plates and rockably fitted on transverse linking rods, with the wheels on both ends of the aforesaid linking rods being regulated to the track frame installed in and over the water channel as against the wheels on both ends of the interlocking rods linking the back ends of filter plates being regulated to the inner track frame having a track different from the former, thereby making sure to arrest, transport and dump the solids and recondition the spacings or meshes as the filter medium travels around.

Abstract: A cell filter having a collecting part divided into chambers and compartments and provided with cavities. Each compartment is provided on the one hand at the bottom thereof with at least one liquid-discharge outlet lying substantially below that level where the cavities open and on the other hand, above the liquid top level, with at least one passageway towards a gas-sucking device in such a way as to suck the gases while causing the gases and liquids to separate and go along different paths inside the compartments, means being provided to return to the original compartment those liquids which might have entered the passageways so as on the one hand, obtain at the distributor outlet, liquid-free gases and on the other hand, collect through the discharge openings only liquids which are substantially free from undissolved gases.

Abstract: An apparatus for continuous liquid-solid separation has suction boxes which respectively have a suction hole on a rear surface and a perforated surface at a front surface and said suction boxes being connected in series to form a conveyor and said suction holes being connected to a suction trough so as to give the sucking condition of the suction boxes in the zone of the suction trough wherein a filter cloth is contacted with the perforated surfaces of the suction boxes and is held by side plates which can be closed and opened at both sides of the suction boxes and the filter cloth and the suction boxes are moved at the synchronized velocity under suction.

Abstract: A filtering apparatus with hollow filters that are alternately placed under reduced pressure and positive pressure. The filters are reciprocally rotated through a cycle along a 180.degree. arcuate path from immersion in the unfiltered liquid to a discharge station and back again. Whle immersed and under reduced pressure, each filter passes liquid and captures cake against its surface. The filter is kept under reduced pressure and rotated to a discharge station. The reduced pressure during this portion of the cycle holds the cake against the filter and dries it. At the discharge station, the filters are placed under positive pressure to dislodge the cake and kept under positive pressure as they are rotated back toward the unfiltered liquid. The discharge station has movable scrapers that contact the filters as they are being rotated back to the unfiltered liquid to assist in dislodging the cake.

Abstract: Apparatus and methods for extracting juice from juice-laden material are disclosed. A tank system defines a row of material treating stations. A plurality of perforated baskets are swingably mounted at respective stations, each basket being operable to receive a charge of material. A flow of liquid is conducted through the stations in juice-extracting contact with the material. A basket actuating mechanism swings each basket from its associated station into a generally inverted position above the basket of a successive station to transfer the charge of material. In one preferred embodiment of the invention the basket is articulated intermediate its ends about a floating hinge. The basket actuating mechanism collapses the basket about the floating hinge to squeeze juice from the material before the material is delivered to the basket of a successive station.

Abstract: In filters of the type in which a cake of solids deposited from a liquid slurry thereof on a generally horizontal filter medium is subjected to treatment involving passage of liquid through the cake while on the filter medium, means is provided for increasing the drainage rate of the formed cake by causing the cake to form on the medium from the slurry fed thereto by gravity settling in the liquor of the slurry and by removing liquor of the slurry from above the cake while the liquor still contains unsettled fine particles, such means including means providing a backflushing flow of liquid through the underside of the filter medium and the cake forming thereon into the slurry.

Abstract: In filters of the type in which a cake of solids deposited from a liquid slurry thereof on a generally horizontal filter medium is subjected to treatment involving passage of liquid through the cake while on the filter medium, means is provided for increasing the drainage rate of the formed cake by causing the cake to form on the medium from the slurry fed thereto by gravity settling in the liquor of the slurry and by removing liquor of the slurry from above the cake while the liquor still contains unsettled fine particles.