Abstract: A novel apparatus for isolating solids or wetcakes from fluids is disclosed. Said apparatus is closed to the atmosphere and comprises a torque sensor and movable cap which allows for solid recovery under pressure without requiring substantial solvent volatilization.

Abstract: The disclosure relates to an apparatus (1) and a method for compacting material, in which the apparatus comprises a path (10), an infeed device (40) which discharges in an opening (11) disposed in the path, and a spiral (30) which is rotary about its longitudinal axis and has no mechanical shaft. In connection with the discharge opening (12) of the apparatus, baffles (13) are provided which impede displacement of the material, Between the free end (39) of the spiral and the discharge opening (12) of the apparatus, the casing forms a compaction cell (15). The spiral is disposed to at least intermittantly abut against the path, in addition to which the spiral and the path form, in the region of the opening (11), a feed compartment (35) for supplied material, this compartment directly merging into the compaction cell (15).

Abstract: Extraction, especially of firm fruit such as cranberries, with improved yields of high quality, low tannin juices by using an improved countercurrent extractor employing longitudinal members positioned between adjacent flights and reinfusion of decharacterized, extracted fruit pieces with infusion syrups, such as juices from fruits other than that extracted, to produce a fruit food product of various flavors having a desired level of inherent soluble fruit component, without the need to bleed off spent syrup as a byproduct.

Abstract: A counter-rotation twin-screw extruder for extracting a juice by squeezing vegetables and/or fruits has mutually engaging screws mounted to two mutually parallel rotary shafts which rotate in mutually opposite directions. The screws are enclosed inside a screen structure made of a curved member made of a stainless steel plate and having slits through which juice is collected.

Abstract: A process is proposed for the dewatering of compressibly dewaterable materials, in particular waste from the processing of paper material, which enables a very high degree of dewatering so that the waste can be readily disposed of, e.g. dumped. For this purpose, the material to be dewatered is initially pre-dewatered by gravity, and usually also by compression, in a transportation section (5). This pre-dewatering can take place in a continually operating feed section (7) through a perforated sieve jacket (10). The material then reaches a press section (6) in which a discontinuously working pressing device is in operation. Further improvements in the dewatering performance are possible by various embodiments of the corresponding pressing elements (13,14). The invention relates to both the process and the device for implemention of the process.

Abstract: A press for the mechanical dewatering of water-containing pulverised solid material is provided with a rotatable feed screw (3) which is so floatably mounted that it can perform a rotary pendular pivoting movement about a swivel point (D) lying in the area of the drive. Thereby, a high dewatering power is achieved with advantagous wear properties of the press. By special formation of the region where the solid material leaves the feed section (3), the effect and operating behavior can be further improved.

Abstract: A spray ring is cycled back and forth along the longitudinal axis of a finisher to allow a high pressure cleaning stream of water or solvent to be directed against the surface of the finisher. A linear rodless cylinder is attached to the spray ring and is sequenced to move the spray ring, responsive to, among other possible inputs, flow measured by a flow switch or flow sensor as a control input to the device.

Abstract: A juice extractor for extracting juice from raw juice containing materials includes a raw material supply hopper of a housing engaged with a main body. The juice extractor includes a pair of squeezing rollers engaged with each other and mounted in the housing. Each of the rollers includes a helical gear and a screw at its leading end portion. A filter surrounds the leading end portions of the squeezing rollers and a discharge section plate is mounted at the leading end portion of the housing and has a discharge pressure adjusting device. Ring gears made of synthetic resins are mounted at both sides of the helical gear of one of the squeezing rollers whereby an interval between the helical gears of squeezing rollers is maintained. Grooves are formed at both sides of the threads of the helical gears of each of the squeezing rollers at a location beneath the raw juice material supply hopper.

Abstract: A solid-liquid separator comprising a number of stationary rings arranged with spaces left therebetween, a number of floating rings each disposed movably in the spaces between the stationary rings and a screw conveyor provided in the inner space of the stationary and floating rings. The screw conveyor is driven in rotation to convey sludge water introduced into the space, and while being conveyed, only a water portion thereof is discharged to the exterior through the minute gaps between the floating and stationary rings. The motion of the floating ring prevents clogging of the solid portion in the minute gaps.

Abstract: A waste disposer comprises a shredder section for shredding waste material and a water remover section coupled integrally with the shredder section for removing water from the waste material, in which the shredded waste material is carried upward throughout a cylindrical screen member mounted in the water remover section by the rotation of a screw while its containing water being removed and drained through apertures of the screen member. A plurality of vertically extending rib portions are arranged at equal intervals on the inner wall of the screen member so that screw blade comes in direct contact with the rib portions during its rotation. A plurality of pins are provided at equal intervals on the outer edge of the screw blade, each pin having a length sufficient to run directly on the inner wall of the screen member as the screw rotates.

Abstract: A screw press for dehydrating slurry and comprising an outer screen casing, a screw shaft, a slurry supplying portion, and a driving unit which rotates the outer screen casing and the screw shaft. The driving unit rotates the screw shaft in one rotational direction and the outer screen casing in the opposite rotational direction. The driving unit comprises a transmission for changing the rotational frequency of at least one of the outer screen casings or the screw shaft. It is possible to have a high dehydrating effect by rotating the outer screen casing in the opposite rotational direction of the screw shaft at a predetermined rotational frequency.

Abstract: A screw press for pressing off fluids, especially from oil seeds, has a screw (1) and, surrounding this screw (1), a fluid-permeable mantle (2), particularly a screen, whereby the screw shaft (3) and the mantle (2) form between them a screw channel (6) with a cross-section that decreases towards the transport direction of the screw (1), and whereby in the screw channel (6) at least one throttle point (7,8,9) is provided for building up zones of high pressure, and a cross-section expansion is provided in transport direction following the throttle point (7,8,9) for relaxing the high pressure at least partially. In order to achieve a higher efficiency, at least one cam (10) that may be moved transversely to the transport direction of the screw (1) is provided in the area of at least one of the existing throttle points (8,9) in the screw channel (6).

Abstract: An apparatus for treating pulp includes an outer casing, a stationary screen surface mounted in the outer casing. A conduit introduces pulp into the interior of the screen surface. An annular space is defined between the screen surface and the casing for receiving the fraction passing through the screen surface. A feed screw is rotatably mounted in the interior of the screen surface. The feed screw extends vertically or is to some extent inclined relative to the vertical direction. The feed screw includes a shaft and pulp conveying blades. The periphery of the feed screw is provided with a nozzle conduit extending substantially parallel to the shaft and located close to the screen surface for spraying washing liquid to the screen surface. The apparatus is especially suitable for screening and/or thickening of fiber suspensions in the wood processing industry.

Abstract: A method and apparatus for conveying and compacting material which includes fractions of different sizes, densities, elasticity, moisture-content etc. wherein a shaftless spiral is disposed in a casing and the spiral is driven in rotation at an end of the casing where the material is fed into the casing. At the opposite end of the casing, i.e. the end located adjacent a discharge section of the casing, the casing surrounds the spiral with slight play, and, moreover, the casing extends in an end region below the spiral to form a correction zone. Counterpressure brakes the movement of the material to compact the material in the compaction zone. The casing is provided with drainage holes in the compaction zone for discharge of liquid expressed from the compacted material during passage through the compaction zone.

Abstract: A waste disposer comprises a shredder section for shredding waste material and a water remover section coupled integrally with the shredder section for removing water from the waste material, in which the waste material is shredded with the shredder section and the shredded waste material is carried upward throughout a cylindrical screen member mounted in the water remover section by the rotation of a screw provided in the screen member while its containing water being removed and drained through apertures of the screen member before discharged from the upper end of the screen member. In particular, a projecting reflector of an inverted truncated cone ring-like shape having a downwardly tapered slope arranged on the outer side thereof is mounted to the upper end of the screw for narrowing the upper opening of the screen member.

Abstract: A double-screw press for separating a liquid from a two-phase solid-liquid material includes a hollow barrel and two screws disposed in the barrel. The barrel comprises a plurality of detachable barrel plates and a plurality of spacers disposed between the barrel plates and cooperating with the barrel plates in defining slits. The screws are arranged side by side with a gap defined therebetween, and are rotated by a motor to move a material, which has been charged into the barrel, efficiently from an upstream end to a downstream end of the barrel. The barrel plates and the screws have respective passages connected to cooling water sources, which supply cooling water to keep the temperature in the screws and the barrel at a desired level. The charged material is crushed and mixed in the gap between the screws, and oil is expressed from the material when it is compressed in the barrel. The expressed oil is discharged through the slits and collected in a container.

Abstract: A device for separating manure into wet and dry phases is disclosed herein. The manure separator includes a cylindrical strainer portion, a jacket disposed around the strainer portion to collect the wet phase, and a rotatable screw conveyor disposed within the strainer portion. The rotatable screw conveyor includes a shaft, and first and second screw thread sections disposed on the shaft and spaced from one another to include a longitudinal, annular zone that is free of obstruction around the entire circumference of the shaft. The longitudinal, annular zone causes a plug of relatively dry manure to form therein, the forming of which exerts back pressure on upstream portions of manure adjacent the first screw thread section enhancing the separation. The second screw thread section removes downstream portions of the plug for discharge of the dry phase from the device.

Abstract: The spray ring is cycled back and forth along the longitudinal axis of the finisher to allow the high pressure cleaning stream of water or solvent to be directed against the surface of the finisher. A linear rodless cylinder is attached to the spray ring and is sequenced to move the spray ring from one end of the finisher to the other.

Abstract: In an auger type ice making machine having an upright evaporator housing the internal wall of which is formed with a cylindrical freezing surface, and an auger mounted for rotary movement within the evaporator housing to scrape ice crystals off the freezing surface and to advance the scraped ice crystals toward an upper end of the housing, an extruding head assembly mounted on the upper end of the evaporator housing includes a cylindrical head member coaxially coupled with the upper end of the evaporator housing, the head member having an internal cylindrical wall formed with a plurality of circumferentially equally spaced radial projections forming a plurality of circumferentially equally spaced compression chambers to which the scraped ice crystals are successively introduced under the action of the auger, and a thrust mechanism mounted on an upper end of the auger to compress radially outwardly the ice crystals introduced into the compression chambers in accordance with rotation of the auger.

Abstract: A scraper filter system, which comprises a screw-formed spiral impeller within a cylindrical filter element, and a scraper in the groove formed along the spiral end of the impeller for engagement with the internal surface of the filter element for scrapingly removing solid components deposited on the surface of the filter element.The scraper is comprised of a plurality of separate arcuate segments each being urged radially in the external direction by a resilient member, and also includes a securing element for preventing movement of each segment in the groove with respect to the spiral edge of the spiral impeller.

Abstract: An apparatus and method for extracting juice from raw juice containing material is disclosed. The apparatus includes a supporting housing, a pair of meshing helical gears (2,3) for crushing the raw juice containing material to initially extract juice therefrom and with each helical gear terminating in a tapered screw. A sieve (4) is operatively positioned around the helical gears and each of the tapered screws with the sieve being branched (47,48) with each branch housing at least a portion of one of the tapered screws, respectively. Each branch of the sieve has a terminal end with a discharge outlet formed thereat to enable each of the screws to further extract juice from the crushed raw juice containing material by compressingly moving the crushed juice containing material along one of the branch portions of the sieve and toward one of the discharge outlets formed in the sieve.

Abstract: A stainless steel tank has a hinged cover which closes over a cylindrical drum which is rotatably mounted within the tank. The drum has a stiff support structure with an inlet end plate and a discharge end plate and a plurality of linear support members extending between and rigidly fastened to the two end plates. A helical auger is welded to and supported by the support members and is positioned within the drum by a central core tube. The auger and core tube are not connected to the inlet end plate leaving an unobstructed open-throat which allows the free flow of food product into the drum. A perforated cylinder of screen material surrounds the drum and retains food product therein. An infeed flight attachment extends from the auger to the inlet end plate and has a curved portion which extends beneath the water level to avoid contact with the food product above the water level.

Abstract: There is disclosed a garbage disposer which pulverizes kitchen garbage, drys it and discharges only the yield water into a sewage system. This apparatus includes a garbage pulverizing segment and a garbage drying segment, both of which are driven by a common motor. The garbage drying segment includes a screw with a helical blade and a cylindrical screen disposed around the screw. In this garbage drying segment the garbage is compressed and dried as it is pressure-fed by the screw within the screen. The water thus produced flows past the screen and is discharged from the garbage drying segment into the sewage system, while the dried garbage is collected in a bag.

Abstract: A continuously and automatically functioning device for the drainage of sludge treated with a flocculent, especially of sewage sludge, comprising a screw conveyor installation with a driven conveyor screw consisting of shaft (16) and helix (17) and a screen wall (18). The screw conveyor installation possesses a first cylindrical area (10) of a large diameter and gap width followed by a conical area (12) for purposes of volume reduction in the throughput direction of the sludge. Connected to the conical area (12) of the screw conveyor installation is at least one pressure area (13) which, with the diameter of the shaft (16) being constant, possesses a decreasing lead of the conveyor helix (17) at the side of the entrance, and in its final area carries a conical piece (49) placed upon the shaft (16).

Abstract: Slimy liquids, such as slimy manure, are passed through a press screw separator to separate the solids. Vibrations are introduced into the slimy liquid for reducing its viscosity to enable the liquid to more readily gravitate through a screen basket of the separator.

Abstract: A scraper filter system, which comprises a screw-formed spiral impeller within a cylindrical filter element, and scraper means formed along the spiral end of the impeller for engagement with the internal surface of the filter element for scrapingly removing solid components deposited on the surface of the filter element.Further the present invention provides a filter system, which comprises a cylindrical filter element, a cylindrical casing allowing liquid components to flow from the inside to the outside through the filter element, a spiral impeller with the scraper means for engagement with the internal surface of the filter element for removing solid components, and further comprises a feed liquid inlet at one end of the cylindrical casing and filter cake discharge means including a cake discharge outlet at the outlet end of the casing.

Abstract: Solids contained in waste water are separated and dewatered by a separator comprising a cylindrical strainer basket and a rotary screw disposed in said basket. The screw terminates short of an outlet end of the basket. Waste water introduced into the separator is advanced by the screw until a solids slug is formed between a discharge end of the screw and a solids discharge formed by a cylindrical tube extending forwardly from the basket. About seventy to ninety-five percent of the slug is contained in the basket and is pressed laterally against a wall of the basket to promote the removal of water. The terminal portion of the screw tapers in order to maximize the compaction of the solids slug.

Abstract: A cast-formed bi-metallic worm in a mechanical screw press for expressing liquids from fibrous materials and a method of manufacture thereof. The worm is rotatably driven by the presses drive shaft and includes a body adapted to slidably engage around and be driven by the drive shaft and a flight extending radially outward from within the body. The body is formed of a ductal homogeneous cast material while the flight, which may be continuous or split, is cast formed of a harder homogeneous material so as to mechanically engage within and be rotatably driven by the body. The worm may also include a wear resistant cast-formed shell around the periphery of the body formed of either the same material as the flight or another hard wear resistant material.

Abstract: An apparatus for dewatering and squeezing a water containing material comprises a drum with a sieve mantle defining two co-operating drum sections, each comprising a feed screw extending therein. The first section of the drum in the feed direction is formed for dewatering of the material mainly by self-drainage. The first drum section is rotatable and is provided with means for cleaning the sieve mantle holes. The second section is formed for increased compression of the material, and has a thread height for the feed screw smaller at the outlet of the second section than at the inlet to this section.

Abstract: A spindle press (1) comprises a housing (3) with an upper part (2) and a lower part (5). A press spindle (16) is supported with an upper bearing (14) in a cover (11) of the upper part (2) and with a lower bearing (19) in the lower part (5) so as to be rotatable. The press spindle (16) comprises a hollow spindle body (27) with perforations (38) for pressed out fluid, compressor wings (56) and worm wings (57) being placed on the spindle body (27) externally. Interruptors (26), which are fastened at the housing (3), extend between these wings in a plurality of axial planes. The housing comprises a screen casing (22) permeable for the pressed out fluid and also a spray casing (21) at a distance outside of the latter. The pressed out fluid is guided away through a dewatering arrangement (30) of the lower part (5). The lower part (5) rests on a vertical frame (7) which encloses a telescoping drive pipe (52) and, further down, a drive arrangement (12) which drives the drive pipe (52) in a rotating manner.

Abstract: A screw press comprises a housing having a spray casing and a screen casing arranged within the spray casing and forming an annular space therebetween, at least one press spindle located within the screen casing and forming a pressing space therebetween, the at least one press spindle having a plurality of wing members and at least one axial zone free of the wing members, and at least one dewatering member which is supported by the housing and located in the at least one axial zone in the pressing space between the spindle body and the screen casing, the at least one dewatering member being hollow and provided with a plurality of perforations and also having an outlet which opens into the annular space between the screen casing and the spray casing, the at least one dewatering member being arranged at a radial distance from the spindle and the screen casing, and at least one carrier holding the at least one dewatering member.

Abstract: An elongated, imperforate housing (2) has a slurry inlet port (5) at one end and a pulp discharge port (6) at the other end. A pressing section (2b) within the housing is in direct fluid communication with the inlet port, and extracts liquid from the slurry by passing the slurry through a first compression restriction (108) to produce a pressed pulp. An annular washing section (2c) within the housing is positioned immediately downstream of, and in direct fluid communication with, the first compression restriction. The washing section has radially inner (109) and outer (14) cylindrical walls defining an annular washing chamber (110) for decompressing, diluting, and washing the pressed pulp. The washing is accomplished by injecting a washing liquid into the washing chamber through the inner wall, and simultaneously through the outer wall while the mixture is agitated. A repressing section (2d) within the housing is in direct fluid communication with the washing section, for receiving the conveyed mixture.

Abstract: A deaerator for particulates capable of increasing the bulk density of the particles to reduce the volume of the particulates. In the deaerator, a perforated cylindrical section (1a) of a cylindrical body (1) includes a filter (13) formed of a sintered material. A screw conveyor (4) arranged in the cylindrical body has a screw pitch (4a, 4b) which is small and which gradually reduces the region on the downstream side of the perforated cylindrical section. The filter may be formed by sintering a fine metal fibre, a metal powder or a ceramic powder.

Abstract: A spindle press comprises a housing with a circular cylindrical upper part and a lower part. A press spindle, which is drivable in a rotating manner via a drive pipe by a drive arrangement, is supported in an upper bearing and a lower bearing of the housing so as to be rotatable. A spindle body of the press spindle carries worm wings on the outside and compressor blades farther above, which all extend in the vicinity of a screen casing of the upper part. The screen casing is enclosed at a distance by a spray casing and provided with holes for pressed out fluid only from the compressor blades down. The spindle body also comprises perforations for the pressed out fluid only from the compressor blades down. Above the compressor blades a helically constructed front wall is welded in between an annular wall and the screen casing which is unperforated at that point. On the lower side of the front wall, wet pulp arrives tangentially through a filling opponent of the upper part.

Abstract: An extruder for treating high-oil-content material such as certain oilseeds, is used to prepare the material for later solvent extraction of oil from the material. The extruder has an elongate barrel and a rotating wormshaft therein which advances the material from an inlet hopper to a discharge die plate having at least one restricted orifice. As the material advances through a series of compaction worms, it is worked and compressed. Steam may be injected to raise the temperature and moisture content of the material. The pressure on the material is increased and is maintained sufficiently high so as to prevent any water content from vaporizing even if its vapor pressure significantly exceeds atmospheric pressure. The barrel wall includes a perforate or slotted section downstream from a solid wall section, and preferably immediately before or close to the discharge die plate.

Abstract: Discloses transportable liquid clarifying and screw conveyor/compactor liquid-solid separator apparatus which includes a pressureable clarifier vessel portably mounted on a base with a top and sides converging to the bottom of the vessel for attachment to a sludge disposal apparatus. A sludge inlet enters the top of the vessel and extends to near the bottom of the vessel. An effluent discharge flow control valve is connected through a conduit in the top of the vessel to provide a designated back pressure within the vessel while controlling the discharge flow of effluent liquid from the vessel. The sludge disposal apparatus includes an elongated screw conveyor/compactor mounted at an angle and extending upwardly from the vessel bottom. The compactor housing is tapered to compact the sludge as the screw conveyor carries the sludge to a liquid extraction section. The liquid extraction section has a screen tapered to further compact the slurry while extracting liquid being forced out of the slurry.

Abstract: A drainage system for expressing liquids and fluids from fibrous materials. The system includes a plurality of spaced apart compression elements each retained in juxaposition one to another so as to have a fluid escape slot between each adjacent compression element. Each compression element has a longitudinal passageway therethrough each having an inlet and an outlet which is inwardly tapered toward its outlet. The combination of passageways through each compression element forms a compression conduit whose inlet and outlet generally functionally coincide with the intake and exit, respectively, of the drainage system. The fibrous material to be expressed is introduced into the system's intake under pressure, the fibrous material being compressed as it is forcably urged through each tapered passageway, the expressed fluids exiting the compression conduit radially outwardly through fluid escape slots.

Abstract: The invention relates to a process and an apparatus for extracting fat from an animal material in which according to the invention, the fat is continuously melted and then extracted by passing the animal material through two successive zones, namely a melting zone (B) and an extraction zone (C), of a single housing in the form of an elongate sleeve (1) equipped, in the melting zone (B), with heating means (13) and, in the extraction zone (C), with filtering walls (16) for the passage of the melted fat, the sleeve (1) encasing two overlapping conveyor screws (2) driven in rotation.

Abstract: This invention is directed to a worm shaft assembly used to move corrosive and/or abrasive material such is part of an extrusion device or a press. More particularly, it relates to the construction of flights, feed quills and intermediate rings or collars for mechanical presses and extrusion devices.

Abstract: A drainage system for expressing liquids and fluids from fibrous materials. The system includes a plurality of spaced apart compression elements each retained in juxaposition one to another so as to have a fluid escape slot between each adjacent compression element. Each compression element has a longitudinal passageway therethrough each having an inlet and an outlet which is inwardly tapered toward its outlet. The combination of passageways through each compression element forms a compression conduit whose inlet and outlet generally functionally coincide with the intake and exit, respectively, of the drainage system. The fibrous material to be expressed is introduced into the system's intake under pressure, the fibrous material being compressed as it is forcably urged through each tapered passageway, the expressed fluids exiting the compression conduit radially outwardly through fluid escape slots.

Abstract: A pre-filtering apparatus for pre-filtering raw material to be pressed by a continuous screw press having a hopper includes a filtering screen arranged rotatably within the hopper about a shaft, so that the inside space of the hopper is divided into two portions. The raw material is supplied into the one of the two portions which communicates with the continuous screw press. Water, oils and fats extracted by the screen from the raw material are discharged out of the hopper through an outlet pipe provided to the hopper at a position above the shaft.

Abstract: An apparatus for the compaction and reduction of liquid content in a material includes at least one floating helix (3) rotatable about its axis by drive means (4, 30) and disposed in a casing (2) which, at least along a portion of its extent in the longitudinal direction, completely encloses the helix. In conjunction with the discharge portion of the apparatus, the casing encloses the helix with slight play. Seen in the direction of movement of the material, the discharge portion includes a helix-free region most proximal the discharge opening of the casing, intended for the formation of a counterpressure member which arrests the movement of the material. In this region, the helix is provided with an extension body (100) which reduces the available conveyor surface area. As a rule, the body is a cylindrical hollow body which as a rule is provided with drainage apertures.

Abstract: A centrifugal finisher and method of its operation are disclosed for separating finished juice from an initial juice including substantial solids or for separating finished fluid from any slurry including substantial solids, the slurry being introduced into one end of a cylindrical screen driven in rotation for centrifugally urging the slurry against the screen and causing a fluid component to pass through the screen. Wiper paddles are arranged on a support drum for rotation in wiping contact with the screen and for limited movement relative to the screen for continuously moving solid material from the slurry toward an outlet axial end of the screen.

Abstract: A control valve for regulating and maintaining the pressure ratio between two pressures (p.sub.1 and p.sub.2) associated, respectively, with two separate pressure systems at a constant value. In particular, the pressure (p.sub.2), prevailing in hydraulic cylinders which serve to press one press roll against a counter roll in a roll press, is controlled as a function of the pressure (p.sub.1) of the fluid which transfers the contact pressure in a deflection adjusting roll of the roll press. The control valve includes a piston, movably disposed in the housing of the control valve, and provided with a first end face area (A1) at one end thereof and a second end face area (A2) at the opposite end thereof. The end face area (A1) is subjected to the first pressure (p.sub.1) in a first pressure chamber (1a) and the second end face area (A2) is subjected to the second pressure (p.sub.2) in a second pressure chamber (2a).

Abstract: Shaped ammunication for tubular weapons in the form of nitrocellulose-based combustible cartridge cases are continuously produced in a screw extruder from an aqueous suspension, stabilizers, flammable fibrous material, binders and optionally plasticizers being supplied to the suspension. The fibre-like constituents are matted in kneading and pressing zones, accompanied by the simultaneous squeezing out of the water, being shaped to an endless tubular structure, which is then cut to the length of the individual cartridge cases and is optionally also pressed to the desired dimensions and shape. Advantageously use is made of a double shaft screw extruder with kneading and pressing segments, as well as a water outlet, which is provided at its end with a tubular die. A following pressing and cutting to length means is arranged behind the extruder.

Abstract: A recovery method for settled black liquor in ponds and lagoons is disclosed so that ponds and lagoons which can no longer be pumped to recovery evaporators and furnaces are reconstituted by augering the settled black liquor and passing the augered material through filters, partical micronization chambers and static mixers.

Abstract: The apparatus comprises a plurality of stages having screw presses, the material passing out from the outlet side of the stages being passed by a transfer duct to the inlet side of the following stage. Each stage has a speed adjustable independently of the speed of the other stages. Compared with known screw presses, the advantage exists that following each treatment in a stage, by means of an opening in the transfer duct, the material can be measured, checked or subjected to an additional treatment. The number of stages can also be adapted to the material being processed and there is also a relatively large freedom with regards to the arrangement of the apparatus.

Abstract: A screw press for dewatering sludge and fiber suspensions, having a feed screw, a perforated drum surrounding the feed screw, an inlet or infeed aperture at one end of the drum, and an end wall section at the other end forming an annular outlet or outfeed aperture. The end-wall section includes a plurality of flaps located as an extension of the feed screw, the flaps being yieldably arranged to adjust the size of the outlet aperture. The end of each flap nearest the axis (9) of the feed screw (1) is pivotally mounted on an attachment connection (11), and the attachment connection (11) is arranged for movement along the axis of the feed screw (1). The flaps (7) are arranged to be pressed outwards under the influence of a first force generating arrangement (15,17,18) to form a larger angle with the screw axis (9), thereby causing the outlet aperture to decrease in size.

Abstract: A method and apparatus are disclosed for automatically cleaning extrusion screens in finishing machines of a type having a generally cylindrical perforated screen arranged in a housing, juice or the like laden with solids being introduced into the interior of the screen and urged against the screen by a screw element, paddle assembly, or the like to cause the juice to flow through the screen with the solids being retained on the screen. The cleaning method and apparatus comprise a cleaning unit with a plurality of spray nozzles arranged about the screen, the cleaning unit being moved back and forth along the screen by a reversing motor additionally controlled by suitable limit switches. The method and apparatus of the invention are preferably adapted for causing relatively increased cleaning action adjacent a solids outlet end of the screen to better remove larger amounts of juice solids or pomace deposited on that portion of the screen.

Abstract: Apparatus for separating and collecting different grades of grape juice from a continuous action, inclined helical screw dejuicer having a plurality of drip pans below the dejuicer barrel formed to convey different grades of grape juice to receiving troughs, at least some of the drip pans being adjustable longitudinally of the dejuicer barrel for selectively varying the nature and quality of the juice collected by each adjustable drip pan. The method contemplates adjusting the quality of each grade in the manner described, making it possible to collect the "first press" clear, uncolored juice pressed from colored grapes so as to be able to make white wine from red grapes.