A cyclone separator in a dishwasher includes a first housing, a second housing provided inside the first housing, a first filter piece provided inside the second housing, and a back flow part. A waste collection chamber is provided between the second housing and the first housing. The first filter piece encloses and forms a first filter chamber. A flow passage is provided between the first filter piece and the second housing. The flow passage is in communication with the first filter chamber via filter holes, and the waste collection chamber is in communication with the flow passage. An inlet pipe is in communication with the flow passage. A flow medium enters the cyclone separator via the inlet pipe, and forms a cyclone in the flow passage. An outlet pipe is in communication with the first filter chamber, and the flow medium exits the cyclone separator via the outlet pipe.

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 liquid filtering system for a dishwasher, having a housing defining a filter chamber and configured to be fluidly coupled to a recirculation flow path of the dishwasher, a filter located within the filter chamber and having a first end axially spaced from a second end and defining a filter there between that has a first surface and a second surface, the filter being positioned within the recirculation flow path to filter soils from liquid flowing through the recirculation flow path as the liquid passes through the filter and a flow diverter to aid in cleaning the filter.

An elongated scraper profile is provided, preferably for a dewatering device that serves the purpose of dewatering sludge. The scraper profile features a lip section extending in the direction of the longitudinal extension of the scraper profile, which serves the purpose of scraping sludge components from a screen surface. The scraper profile features a fastening section extending in the direction of the longitudinal extension, which serves the purpose of fixing the scraper profile with the assistance of a retainer assembly. The scraper profile also features an intermediate section connecting the lip section and the fastening section, whereas the intermediate section is flexibly formed in a direction running perpendicular to the longitudinal extension, such that the lip section is moveable in the direction of the fastening section.

The invention relates to a filter device for polymer melts, having a filter screen (1), through which the polymer melt to be purified is guided, wherein the filter device comprises at least one scraping element (2), which glides across the upstream surface (4) of the filter screen (1) with its scraping edge (3), or rests on the surface (4) with its end area nearest the scraping edge (3), and lifts off and/or scrapes off the contaminations (6) adhering to the surface (4) and those present in front of the screen orifices (5) in the course of its movement across the surface (4). According to the invention it is provided that the scraping edge (3) has a curvature (7) at least in the end area of the same, leading in the direction of movement (16), the radius (R) of which is less than 90%, preferably less than 50%, in particular less than 20% of the maximum diameter, or of the maximum orifice width of the screen orifices (5).

A filtering device for a plastic material in the molten state includes a hollow body having a mouth and a cover; an inlet way and an outlet way for the filtered plastic material; two filters arranged side by side; a rotary cleaning device arranged between the two filters and provided with scraping elements cooperating with the filtering surfaces; and an evacuation device configured to discharge the impurities toward an evacuation outlet, the evacuation device being arranged centrally in such a way that the impurities travel along equal paths with the same flow rate and discharge the impurities in a balanced manner on the evacuation device.

The invention relates to a filtration device, in particular for the filtration of microplastics for a water-bearing household appliance, wherein the filtration device comprises a housing in which a filter element is arranged, wherein the filter element is designed in such a way that it encloses an inner cavity which is fluidically connected to a supply line element, wherein a first drain element is arranged along the height axis Z above the filter element, wherein a second drain element is arranged along the height axis Z below the filter element.

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

A food processing apparatus includes a pressure vessel defining a compartment having an inlet end for receiving food product and an outlet end for discharging food product, an open-top screen mounted within the compartment and movable relative to the compartment between a first position, for food processing, and a second position, to facilitate cleaning, a rotatable auger mounted such that at least a portion of the auger is within the screen, the auger being operable to advance food product within the compartment from the inlet end of the pressure vessel toward the outlet end, and a transfer mechanism including a conduit in communication with the compartment, a fluid discharge positioned substantially within the conduit, and a pressurized fluid source in communication with the fluid discharge and operable to propel a fluid through the fluid discharge to move food product through the conduit.

A screw filter press comprising a screw shaft, having at least one coil turn and two screw shaft ends. The shaft axis is parallel to the gravity vector and is supported by screw shaft upper end connected to a rotary drive. The screw shaft is enclosed a filter area by a cylindrical filter tube, with openings and which is adjacent radially to a filtrate space, to which underpressure is applied. The sliding tube radially surrounding the screw shaft is the same inner diameter as the filter tube. Radial play occurs between at last one coil turn adjoining the filter tube proximate to the filter tube inner wall.