A discharge method and a discharge device for a cleaning device (2) for filters (5, 6), includes a supply line (26) which can be connected to a collection region (23) for removed filter residue (9) of the cleaning device (2). The discharge device (3) has a controllable metering device (4) which adjoins the supply line (26) and which blocks the supply line (26) and receives removed filter residue (9) from the supply line (26) in portions (35) in a meterable manner and discharges same at a different location. For this purpose, the metering device (4) has a metering element (28) which can be moved in a controllable manner, in particular a rotatably and/or movably arranged metering element. The filter residue (9) can be removed from the filter (5, 6) via a backflushing process or in a mechanical manner using a scraper or the like.

A backflush filter for liquid media, having a filter housing, which is formed by means of at least one supporting cage, which has at least two groups of slot-type apertures, and at least one filtering means supported on the supporting cage, where-in the apertures of each group extend in parallel alignment with one another and are separated from one another by ribs, and having a backflushing device, which is arranged in the interior of the filter insert, is rotatable and has at least one slit, said backflushing device being designed for flushing of the filtering means via the slit and apertures. The direction of motion of the backflushing device can be reversed during the backflush cycle and a filter insert therefore, wherein the backflush filter and the filter insert include a filtering means having a pleated, preferably multi-ply, filter fabric or filter cloth with pleating folds, and the ribs fit by means of a rib front into respective pleating folds.

A backflush filter for liquid media, having a filter housing, which is formed by means of at least one supporting cage, which has at least two groups of slot-type apertures, and at least one filtering means supported on the supporting cage, where-in the apertures of each group extend in parallel alignment with one another and are separated from one another by ribs, and having a backflushing device, which is arranged in the interior of the filter insert, is rotatable and has at least one slit, said backflushing device being designed for flushing of the filtering means via the slit and apertures. The direction of motion of the backflushing device can be reversed during the backflush cycle and a filter insert therefore, wherein the backflush filter and the filter insert include a filtering means having a pleated, preferably multi-ply, filter fabric or filter cloth with pleating folds, and the ribs fit by means of a rib front into respective pleating folds.

A filter arrangement for a liquid-conducting system, preferably a cooling circuit of an engine, includes a filter housing with an inlet and an outlet for liquid flowing along a flow path through the filter housing. A filter is arranged in the filter housing in the flow path of the liquid for filtering out dirt particles from the liquid. A collecting chamber is arranged upstream of the filter and into which dirt particles which are filtered out by the filter drop because of gravity when liquid no longer flows through the filter housing, wherein the collecting chamber forms a dead space, and therefore dirt particles located in the collecting chamber are not entrained by liquid flowing through the filter housing.

A multi-zoned paddle screen apparatus 100 is disclosed for separating fiber from a liquid medium during, for example, a grain wet mill or dry grind process. The apparatus includes a housing 106 having first and second zones 108a, 108b situated adjacent one another along a length (L) of the housing 106. First and second screen sections 102a, 102b having a plurality of openings 104 may be situated lengthwise within the housing 106 corresponding with the first and second zones 108a, 108b, respectively. The first and second screen sections 102a, 102b have a circular cross-section, and the second screen section 102b has a larger diameter than the first screen section 102a. An elongated shaft 130 situated lengthwise within the screen sections 102a, 102b includes first and second conveyors 128a, 128b, which correspond with the first and second zones 108a, 108b, respectively, having a plurality of paddles 132. Each conveyor 128a, 128b is configured to move material in a direction along a length of the screen 102a, 102b. There may be more than two zones 108a, 108b.

A multi-zoned paddle screen apparatus 100 is disclosed for separating fiber from a liquid medium during, for example, a grain wet mill or dry grind process. The apparatus includes a housing 106 having first and second zones 108a, 108b situated adjacent one another along a length (L) of the housing 106. First and second screen sections 102a, 102b having a plurality of openings 104 may be situated lengthwise within the housing 106 corresponding with the first and second zones 108a, 108b, respectively. The first and second screen sections 102a, 102b have a circular cross-section, and the second screen section 102b has a larger diameter than the first screen section 102a. An elongated shaft 130 situated lengthwise within the screen sections 102a, 102b includes first and second conveyors 128a, 128b, which correspond with the first and second zones 108a, 108b, respectively, having a plurality of paddles 132. Each conveyor 128a, 128b is configured to move material in a direction along a length of the screen 102a, 102b. There may be more than two zones 108a, 108b.

Certain embodiments include a screen assembly of a vessel, where the screen assembly includes a plurality of fixed elements and a retainer, and the retainer includes a ring, a plurality of wedges disposed about the ring, and a plurality of keyholes at spaced locations about the ring. Each keyhole includes a bore and a slot extending from the bore into an adjacent wedge of the plurality of wedges, the slots have a width less than the bores, and the retainer may receive the fixed elements through the bores and may be rotated in a relation with the plurality of fixed elements to bring the plurality of fixed elements into simultaneous engagement with the wedges.

A system for separating solids from a liquid-solid slurry includes a collection vessel configured to receive the liquid-solid slurry in first opening and discharge it through a second opening. There is a filter unit having a chamber with a plurality of apertures and a discharge port. There is a pump unit interconnected to the chamber of the at least one filter unit. One of the filter unit or the pump unit is in fluid communication with the second opening in the collection vessel and is configured to receive the liquid-solid slurry and it through the filter unit chamber, causing liquid from the liquid-solid slurry to flow through the apertures and the solids to be retained in the chamber of the filter unit. The pump unit includes a discharge device which is translatable through the chamber of the filter unit to force solids retained in the chamber toward the discharge port.

A system for separating solids from a liquid-solid slurry includes a collection vessel configured to receive the liquid-solid slurry in first opening and discharge it through a second opening. There is a filter unit having a chamber with a plurality of apertures and a discharge port. There is a pump unit interconnected to the chamber of the at least one filter unit. One of the filter unit or the pump unit is in fluid communication with the second opening in the collection vessel and is configured to receive the liquid-solid slurry and it through the filter unit chamber, causing liquid from the liquid-solid slurry to flow through the apertures and the solids to be retained in the chamber of the filter unit. The pump unit includes a discharge device which is translatable through the chamber of the filter unit to force solids retained in the chamber toward the discharge port.

An assembly (2) comprising at least two elements (10, 24) in a movable arrangement relative to each other for performing a first function of the assembly (2) is furthermore equipped with an anti-biofouling system (30) for subjecting at least an area (11) of the assembly (2) to be at least partially exposed to water during at least a part of its lifetime to an anti-biofouling action as an additional function of the assembly (2), different from the first function of the assembly (2). The anti-biofouling system (30) comprises one or more light sources (32) for emitting anti-biofouling light, and the anti-biofouling system (30) is adapted to realize coverage of the area (11) with the anti-biofouling light on the basis of the movable arrangement of the at least two elements (10, 24) relative to each other for performing the first function of the assembly (2).