Abstract: The present disclosure relates to a separation device to separate contaminants from contaminated water. It comprises a container to receive the contaminated water. The container further comprises a contaminated water inlet, a filter, a presser for compressing and/or dewatering contaminants separated from the contaminated water, and a contaminant outlet. The container further comprises a gas inlet for generating gas bubbles into the contaminated water to further separate contaminants from the contaminated water. The present disclosure relates to a use of such a separation device and a method of separating contaminants from contaminated water.

Abstract: A method for removing liquid from a slurry includes: (i) feeding the slurry into the inlet of a press; (ii) removing liquid from the slurry as the slurry advances through a deliquifying section of the press, thereby producing a pressate stream; (iii) forming a plug of material as the slurry is advanced through a plug formation section of the press; (iv) advancing the plug of material to a discharge section of the press; and (v) removing additional liquid from the plug of material by operating the press so that the pressure in the discharge section of the press is greater than the pressure of the pressate stream by at least 2 psi. The present invention also relates to a method for controlling discharge consistency from a press, without provision of discharge restrictors, by varying the pressure differential between a discharge section of the press and a pressate stream.

Abstract: A plastic melt machine includes a feed screw rotatably mounted in a barrel and driven in rotation about a longitudinal screw axis of the feed screw by a screw drive to plasticize material, and an apparatus for driving a device independently of the feed screw. The device can be any rotatable device associated with the feed screw wherein the device is rotatable about a drive axis and is in fluid communication with the barrel to receive the plasticized material. The drive axis is one of parallel to and offset from the screw axis and extending at an angle relative to the screw axis. A drive shaft couples the device to the device drive for rotating the device independently of the rotation of the feed screw by the screw drive.

Abstract: A press for citrus fruits has a press head, which executes a press stroke and includes two accommodating dies, each for one fruit half. The dies are arranged on either side of a blade and are pivoted in opposite directions via parallel shafts between an upper accommodating position and a lower pressing position. Rams are assigned to the press head and interact with the dies in the lower pressing position A discharging device for discharging the skins of the pressed fruit halves. Includes a comb whose fingers engage in grooves of the rams. The grooves are oriented in the direction of the parallel shafts. The comb is displaceable between a lower starting position, with fingers lowered in the grooves, and a discharging position, with fingers raised above the rams and sloping down toward the shafts to a discharging opening.

Abstract: An ergonomic work station has upper and lower work platforms disposed one above the other. These are supported on electrically actuated telescoping pedestals to allow the user to select and adjust the elevation of the work platforms individually. Position sensors within each of the pedestals sense the elevation of the upper end of the respective pedestal and provide an output to logic and motor control circuitry. This is configured to maintain the lower work platform level when the height of the lower work platform is being adjusted and to prevent the upper and lower work platforms from colliding, by maintaining at least a predetermined minimum vertical distance between the two work platforms when the lower work platform is being raised or when the upper work platform is being lowered.

Abstract: A system for adjusting the output of a densifier that includes a compression screw. The system may include a pressure system that includes a frame that at least partially surrounds at least a portion of a rail section of an extruder module associated with the densifier, at least one fluid spring associated between the frame and a wall of the rail section, and a compression system associated with the at least one fluid spring, wherein adjustment of the compression system is adapted to increase or decrease the compression force applied by the at least one fluid spring to the wall of the rail section.

Abstract: A system for adjusting the output of a densifier that includes a compression screw, wherein the system includes a pressure system. The pressure system may include a frame that at least partially surrounds at least a portion of a rail section of an extruder module associated with the densifier; at least one spring interposed between a first plate and the rail section, the first plate interposed between the frame and the spring, wherein the spring is associated with a face of the first plate; and a compression system associated with the first plate and the frame, wherein adjustment of the compression system is adapted to increase or decrease the compression force applied by the at least one spring to a side wall of the rail section.

Abstract: The device for dehumidifying and compacting solids contained in sewage for disposal, is designed to be applicable to machinery (1) comprising: a tubular screen (2) having at least an inlet (4) for a product to be separated, at least an outlet (5) for a separated solid part, and at least a filtering wall (3) through which the separated liquid part exits; a transport organ (7) predisposed internally of the screen (2) for transporting the solid part to be compacted towards the outlet (5). The device comprises a contrast element (9), predisposed at the outlet (5) for interacting contactingly with the product, which in a rest position thereof occupies at least a part of a mouth of the outlet (5) and which, under an effect of a pushing action of the product to be compacted, can elastically deform in order to increase a size of a free mouth of the outlet.

Abstract: A choke for a screw device include a choking plug comprising a plurality of choking plug segments, and a choking ring cooperating with the choking plug, the choking ring comprising a plurality of choking ring segments. The plug segments may be releasably mounted to a hub is releasably mounted to a shaft of the screw device, and the choking ring segments releasably mounted to the barrel.

Abstract: An apparatus for removing air from finely divided particulate material comprises a housing including a vent; an inlet to the housing; an outlet from the housing; a helix, rotatably mounted in the housing, the helix being adapted upon rotation to feed a particulate material from the inlet to the outlet; a motor mounted to the helix for the purpose of rotating the helix; and a compression assembly mounted to the outlet for compressing the particulate material passing through the outlet.

Abstract: A wastewater treatment washer compactor system having in-channel motorized screen for installation in an influent channel and removal of screenings from the influent stream; at least one washer and at least one compactor for washing and dewatering the screenings; and system control means for coordinating and controlling the motor speed of the motorized screen, the washing cycle time and processing rate of the washer(s), and the compacting rate of the compactor(s).

Abstract: A screw press apparatus has frames, a screw shaft, an outside tube, a cylindrical screen, a screw blade, a supply pipe, and a cleaning pipe. The screen is fixed between the frames to the outside tube, and has a plurality of fine holes and covers the screw shaft. The screw shaft and the screen define a cylindrical space continuously extending from an upstream region to a downstream region. Raw liquid is fed from the supply pipe via an opening of the screw shaft to the upstream region of the cylindrical space. The cleaning pipe ejects cleaning water onto the screen. Sizes of the fine holes of the screen decrease gradually from the upstream region towards the downstream region.

Abstract: The invention relates to a conical screw press for compressing and for removing liquid from bulk material, comprising a screw with a screw thread and a core in a housing, structure for rotating the screw in the housing, an inlet opening for the bulk material from which liquid is to be removed, an outlet opening for the bulk material from which liquid has been removed, and at least one outlet opening for the liquid which has been extracted. The characteristic features of the invention are that: a) the screw is dimensioned, for at least the greater portion of the length of the screw between the inlet opening for bulk material and the outlet opening for bulk material, such that the external diameter (D) of the screw thread and the diameter (d) of the screw core change axially in the screw press from a first axial position, where the external diameter of the screw thread=D.sub.1 and the diameter of the screw core=d.sub.

Abstract: A pulp wash system in which recovery of juice and sugar solids is enhanced by the provision of an in-line static mixer disposed in the line between a pump supplying pulp to a finisher and the finisher. A plurality of pulp inlet pumps and finishers may be connected in series. Further, in using a series of finishers, the liquid introduced into each finisher except for the last finisher comes from the liquid output from a subsequent or further downstream finisher.

Abstract: A compaction apparatus (2) has a screw conveyor (4) for conveying waste material through a passage (6) and compacting it therein. An exit nozzle (10) is arranged to communicate with the passage (6). The nozzle (10) defines a duct which enlarges and contracts response to increasing and decreasing material pressure, respectively.

Abstract: A single beam aerial work platform with a base structure, top structure, and at least three scissor mechanisms. A hydraulic cylinder for raising the top structure relative to the base structure is attached between the first or lower scissor mechanism and the third or top scissor mechanism. The hydraulic cylinder is attached by a mounting bracket at an offset to the pivot points and structural members of the scissor mechanisms. An additional stress reducing beam, attached parallel to one of the structural members of the middle scissors mechanism, reduces the horizontal bending stress in the structural members of the scissor mechanisms and the connecting pin loading in the scissor mechanism pins.

Abstract: A height adjustment mechanism for a table top generally comprises two leg assemblies each having a base and two vertical columns, a slidable post assembly on each leg assembly with the slidable post, assemblies supporting the table top, and a drive for raising and lowering the leg assemblies and supported table top. The slidable post assemblies have opposed covers which frictionally engage the vertical posts to hold the table top at an adjusted height. The drive is a lack screw and jack nut in each leg/slidable post assembly, wherein the jack screws are connected by a chain and sprocket drive and are driven by a crank.

Abstract: A method of using a work station having separate front and back tops having separate powered drive arrangements for permitting independent height adjustment. A controller, which is programmed by an operator, permits storage of a number of predetermined height locations each defining distinct heights for both tops. The operator effects programmed movement of the tops to predetermined height locations for predetermined times and in a predetermined sequence, with the rear top moving initially and the front top moving thereafter.

Abstract: A variable height table support assembly having a telescopic pillar between a lower base and an upper tabletop support platform, the pillar having an inner cylindrical member and an outer cylindrical member, cooperable with a detent biasing and locking apparatus. The detent is lockable through an opening in the outer cylindrical member and into one of more than one cavities in the inner cylindrical member, by a threaded, adjustable plunger It is also biased toward this opening and a cavity by a stabilizing spring when the plunger is backed off to unlock the detent. Preferably a gas cylinder extends through the pillar to assist elevation of the tabletop support, and cushion lowering thereof.

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: Apparatus for densifying particulate solids and for removing air from the solids includes a screw feeder that conveys the material through a recirculation chamber, then into a high pressure shroud that is closed at its downstream end by a preloaded cover in yieldable sealing engagement with the downstream end of the high pressure shroud. In a preferred embodiment, the high pressure shroud includes a perforated section that extends upstream into the recirculation chamber so that as the particulate material is compressed by the screw in the high pressure shroud, air and some of the particles are expressed through the perforations and are contained by the recirculation chamber which directs the expressed particles downward into the screw which once again pushes them into the high pressure shroud.

Abstract: A liquid separator to extract liquid, usually water, from a water-solid mixture. The liquid separator has a housing with an inlet and an outlet separated by a liquid extraction chamber. The housing sidewalls defining the extraction chamber are porous, and are preferably comprised as a plurality of spaced apart rails or slats. The spacing between the rails provides a porosity for extraction of water. The rails are movable inwardly and outwardly relative to the housing in order to vary the volume of the extraction chamber. Bias means are provided that normally bias the rails inwardly of the chamber. A water-solids mixture is pumped through the chamber and tends to expand the chamber against the force of the biasing means. The combination of effects upon the subject mixture is to cause water extraction through both the squeezing by the slats and the friction occassioned by the dewatering of the subject mixture.

Abstract: A method and apparatus is disclosed for automatically controlling operation of a juice finishing machine of a type having a cylindrical perforated screen in a housing forming an inlet for introducing initial juice or the like into an interior portion of the screen, temperature of juice solids in the pad area and temperature of the initial juice entering the machine being separately monitored and converted to proportional electrical signals, a differential controller establishing a differential output signal proportional to the differential between the sensed temperatures, the differential electrical signal being converted to a pneumatic signal suitable for regulating operation of the actuator means in order to automatically control finished quality of juice product from the machine. A fail-safe control is also provided for establishing a predetermined setting for the actuator means if the differential electrical signal exceeds predetermined limits.

Abstract: A conveying apparatus includes a casing having a bore therethrough with an inlet for solid particulate material to be conveyed and an outlet. A screw impeller is rotatably mounted in the casing by front and rear bearings with the rear bearings being positioned near the inlet. Material is discharged from the casing through a coaxial outlet into a discharge chamber. Gaseous fluid under pressure is supplied to the discharge chamber for entraining and conveying the particulate material through a pneumatic conveying line which is flow connected to the outlet of the discharge chamber. A valve, which closes the outlet of the casing, is biased closed by a weight and opened by material being advanced by the screw impeller. The valve includes a valve plate with an opening which surrounds the shaft of the screw impeller and provides a seal at the casing to substantially prevent gaseous fluid from entering the casing.

Abstract: In a continuous press of a screw blade type, a driving shaft is rotatably secured to a frame by means of thrust bearings at both ends of the driving shaft, a screw drum having an increasing diameter towards center is disposed around the driving shaft to rotate therewith, a pair of screw blades are helically arranged around the screw drum symmetrically with respect to the center of screw drum, and an outer drum having a number of small filtering holes is arranged around the screw blades. A pair of inlets for introducing raw materials to be pressed are provided at both ends of the outer drum and an outlet from which the pressed raw materials are discharged is also provided in the outer drum at its center. At the outlet a pair of cone-shaped plates are arranged movably in an axial direction of the press and these plates are resiliently pressed towards each other. The pressure applied to the cake is automatically maintained constant due to the axial movement of the plates.

Abstract: A cylindrical housing and auger drum assembly is mounted to extend from the side of a cubing machine of the type having an annular die assembly, a circular die cavity on the inner periphery of the die assembly, and at least one press wheel that is received in the die cavity. The auger drum carries a rigid blade that forms an auger flight, and which terminates a short distance from the outer end of the drum. A flexible, resilient tip is mounted on the outer end of the rigid blade, and substantially fills the space provided between the auger drum, the housing and the die cavity, the outer edge of the tip being positioned at the die cavity. The tip functions to supply an optimum flow of feed stock to the die cavity, but will flex to allow bypassing when plugging or jamming conditions exist.

Abstract: A device for separating coffee grounds from rinse water is disposed beneath a drain pipe of the coffee-making machine. This device comprises a tubular jacket having on the top side thereof an inlet opening for admitting rinse water containing coffee grounds. Detachably connected to one end of the jacket is a funnel-shaped, resilient end piece having a small aperture. On the underside of the jacket is a slot in which a strainer is inserted, through which rinse water but not coffee grounds can flow out of the jacket. Within the jacket there is a piston slidingly driven by a drive piston for pressing rinse water out of the coffee grounds. In order for the coffee grounds to leave the jacket, sufficient pressure must be exerted on the grounds to press part of them through the thus widened aperture in the resilient end piece. By separating the coffee grounds from the rinse water, the device keeps the grounds out of the sewer system.

Abstract: A screw press for extracting liquids from materials such as fruits, vegetables, or the like having a cylindrical barrel and a rotatable shaft and helical feed and compression screw concentric with the barrel and having the shaft extending through the barrel. A portion of the barrel rearward from the feed and compression screw forms a cylindrical pressing chamber having screen walls for passing extracted liquids therethrough. The outlet end of the cylindrical pressing chamber is closed by a circular door slidably mounted on the drive shaft. Hydraulic actuators apply adjustable pressure to the outside surface of the door closing the chamber when in a non-operating condition. When material is being pressed in the pressing chamber, the internal pressure will overcome the external pressure causing the door to open for ejection of the dried material. The inner surface of the door includes projecting cutter bars.

Abstract: An improved screw type apparatus for separating the liquid phase from a solid-liquid mixture includes a conveyor screw and a discharge housing that includes an imperforate cylindrical wall which surrounds the downstream end of the screw tube and has a discharge opening formed therein. A discharge gate is pivotally mounted in the discharge opening, and a pneumatic actuator is provided to bias the gate toward a closed position with a preselected, constant force. Paddles are affixed to the cylindrical downstream end of the screw tube at longitudinal spacings thereon for the purpose of propelling the deliquified solid phase of the mixture about the end of the screw tube, and stripper members are mounted on the interior of the cylindrical discharge housing wall adjacent the discharge opening to extend between the paddles to aid in urging the solid material into the discharge opening.

Abstract: A screw press for extracting liquids from materials such as fruits, vegetables, or the like having a cylindrical barrel having a concentric variable-speed helical feed and compression screw. The rearward portion of the cylindrical barrel comprises a cage section having perforate filter screens for passing extracted liquids and filtering out undesired solids from the material being pressed. The cage section is formed by at least one pair of open semicircular frames having a plurality of spaced apart ribs which support replaceable filter screens. The repair of frames is attached along its bottom edge to a set of interleaved hinge blocks which are hingedly attached to the frame of the press. The pair of frames is removably joined along the upper edges of the frame. When the press is nonoperating, the frames are separated at the upper edges and the hinged blocks permit the frames to open in a book-like manner and swing downward and outward completely clear of the feed and compression screw.

Abstract: A screw press for extraction of liquids from solids or semi-solids having a feed screw disposed in a cylindrical cage formed from filter screens. The feed screw has a body portion that increases in diameter over the full length of the screw in a linear fashion forming a gradual slope providing a gentle pressing action on the materials being pressed. A variable speed drive is used to optimize the rotational speed of the feed screw for maximum liquid extraction versus material throughput. The cylindrical cage comprises at least one pair of semi-circular sections connected along a lower edge by a set of offset hinges and bolted together along an upper edge. For cleaning of the press or changing of filter screens, the sections open with the offset hinges causing the sections to move downward and outward, completely clear of the feed screw.

Abstract: A method is provided for splitting and extracting green plants, such as lucern, for fodder and preserving of the pulp. The method provides for separatelygathering the juice and the pump with various percentages and at a desired rate for more judicious utilization of those components and in particular, a better valorization of proteins; and forpreserving the pump in commercial fractions by a method of batch-compaction and of anaerobic storage, eliminating all dehydrations and thus exhibiting an appreciable savings of energy.The method is characterized in that it includes a primary phase of crushing and breaking of stems without mixing of the cellulose and a secondary phase in which one realizes a definitive splitting to the desired degree. A device for using the method is also disclosed. The method and device have application in the agro-alimentary industries.

Abstract: Blood from a slaughterhouse is gelatinized in a gelatinizer by adding steam and heat thereto. The blood is blown by additional steam pressure from the gelatinizer into an auger press thereby force feeding the press. The gelatinous mass is first squeezed gently to remove the liquids therefrom and during the latter stages is pressed more firmly to remove more of the liquids. The liquids are directed to a filter tank, while the solid gelatinous mass is directed to an offal cooker with offal.

Abstract: A screw press for extracting liquid from materials, such as juice from fruits and vegetables, has a compressing section for expressing the liquid from the liquid containing material with a screw member and a holding section receiving the compressed pulp. The pulp holding chamber has an auger mounted therein for driving compressed material therefrom through a choke controlled discharge which opens in response to material pushed thereagainst. The choke has scraper blades mounted thereon to break apart the discharging pulp, and is clutched to rotate with the auger upon being pushed a predetermined amount. The cage forming the chamber can be separated for cleaning, and the auger is retractable from the chamber for cleaning by actuation of a motor drive retraction member. The screw member and auger each have variable speed drives to achieve a wide range of expressing conditions in both sections.

Abstract: The invention relates to a screw press for dewatering suspended fibrous pulp. The press comprises a tubular casing with perforated wall and a screw member rotatable within the casing. The desired degree of dewatering is controlled by a throttling member adjustable so as to generate a predetermined counter-pressure against the pulp advanced by the screw member. It rather often occurs that the pressure produced in the press becomes so high that the rotation of the screw member is stopped which means total stop of the operation of the press. The invention provides means adapted automatically to avoid such undesired stop in operation by relieving the press from internal pressure exceeding a predetermined, adjustable value.

Abstract: A shredder-compactor apparatus has a hopper for receiving refuse material to be processed and a compaction tube arranged to receive the refuse material from the hopper. A rotary auger screw extends along the hopper and through the compaction tube and coacts with a breaker bar located in the hopper to shred and tear the refuse material in response to rotation of the auger screw. As the auger screw rotates, the shredded refuse material is transported axially through the compaction tube and compacted therein. In the transition region between the hopper and compaction tube, the auger screw has a truncated screw section which is reduced in dimension compared to the remainder of the auger screw so as to facilitate entry of the shredded material into the compaction tube.

Abstract: A screw thickener to be used for dewatering fibrous materials and being provided with a stuffing means at the discharge end. Said screw thickener having a hydrostatic superpressure of at least 10 kPa and said stuffing means being actuated by pulling means.

Abstract: Dewatering and homogenizing apparatus comprising a screw thickener at the discharge end provided with a plug forming means actuated by pulling means. At the thickener's discharge end there is also mounted a hood for receiving dewatered pulp and with supply means for homogenizing agent.