Abstract: The invention relates to a fluid separating device for separating fluids and solids from a composite liquid. Said separating device comprises a channel (12) which is arranged transversely upwards with a closed lower end and an outlet (19). Said channel is provided with an axial screw conveyor (14) which is arranged in the interior. A filter tank (22) communicating with said conveyor is located above the channel (12). An inlet (32) for the composite liquid to be separated is located at the upper edge approximately in the middle of the filter tank (22). A rotation filtering device (34, 70, 92) is arranged at the free end of the filter tank (22). Said device partially dips into the fluid contained in the filter tank (22). The invention provides a means for effectively separating a composite fluid into three different fractions, the clear liquid, a sludge fraction and a particle fraction.

Abstract: Device and process for separation of absorbent/floating material from product mixes by means of float/sink separation with a float/sink separator which exhibits a separator tank filled with a liquid separating medium, in which context there are provided devices for generation of a surface flow in the separating medium, which propel the absorbent/floating material as a floating fraction from a pickup point of the product mix to an output point for the floating fraction, along the surface of the separating medium, at such a speed as to inhibit absorption of the separating medium.

Abstract: An additive for inhibiting the formation of gas hydrates in connection with hydrocarbon production and transportation comprising the water-soluble polymers comprising structural elements of the formula wherein each R is independently H or C1-C5-alkyl; X is H, an alkaline or earth alkaline metal or a quaternary ammonium group; R1 is H or C1-C18-alkyl; and R2 is C1-C18-alkyl; and wherein the alkyl groups represented by R1 and R2 optionally carry a hydroxy or amino substituent; and, optionally, a minor proportion of structural elements of the formula  wherein R, R1, R2 and X may have the meaning as above, and Alk is a C1-C5-alkylene chain.

Abstract: A chip discharge conveyor system includes a partition plate disposed below a discharge run of a circulating endless hinged belt in confronted relation to the discharge belt run along the length thereof. Outer cleats are attached to an outer circumferential surface of the hinged belt, and inner cleats are attached to an inner circumferential surface of the hinged belt. At a conveyor tail end where the hinged belt makes an upward turn, small chips, which have been caught on a return run of the hinged belt, are transferred to the partition plate while they are held by and between a cylindrical member and the hinged belt. The small chips are subsequently conveyed along the partition plate and finally discharged outside a used coolant treatment tank.

Abstract: The invention provides a filtration apparatus for filtering and regenerating a machining fluid. The filtration apparatus includes a dirty tank for receiving the machining fluid and a clean tank fluidly connected to the dirty tank. A filter is provided between the dirty and the clean tanks for filtering the machining fluid which flows from the dirty tank into the clean tank. A conveyer mechanism is provided in the dirty tank for conveying the sediment of particles separated from the machining fluid in the dirty tank. A filter cleaning device are provided for cleaning the filter. The filter cleaning device includes a nozzle bar which is provided in the clean tank for rotation within a plane parallel to the filter means. The nozzle bar directs the machining fluid in the clean tank onto the filter means to blow the particles off the filter means into the dirty tank.

Abstract: A solid-liquid separator including a separation tank, a treated water outlet (16) at the top of the tank, a sludge outlet (17) at the bottom of the tank, a draft tube (3) near the center in an upper inner zone of the tank and connected to a raw water inlet pipe (2), horizontally rotatable multistage stirring blades A (5) in the draft tube, horizontally rotatable multistage stirring blades B (6) immediately below the draft tube, a horizontal baffle (8) below the stirring blades B, a floating filter medium layer (10) around the outside of the draft tube above the stirring blades B, and a screen (12) fixed below the water level above the filter medium layer, and optionally, a filter medium-receiving screen (13) around the lower outside of the tube in combination with stirring rods (14) above the screen or aeration nozzles.

Abstract: A chip discharge conveyor system includes a partition plate disposed below a discharge run of a circulating endless hinged belt in confronted relation to the discharge belt run along the length thereof. Outer cleats are attached to an outer circumferential surface of the hinged belt, and inner cleats are attached to an inner circumferential surface of the hinged belt. At a conveyor tail end where the hinged belt makes an upward turn, small chips, which have been caught on a return run of the hinged belt, are transferred to the partition plate while they are held by and between a cylindrical member and the hinged belt. The small chips are subsequently conveyed along the partition plate and finally discharged outside a used coolant treatment tank.

Abstract: A system for transporting wet chips to a centrifugal separator where the wet chips are separated into dry chips and fluid with the dry chips being transported to a dry chips site and the fluid recirculated or collected. Preferably, the centrifugal separator, when actuated, serves to generate a pneumatic flow of air through a wet chip conduit whereby the wet chips are pneumatically conveyed to the separator from a source of origin such as a tooling machine station where wet chips are generated. A parts separator may be located at either end of the wet chip conduit.

Abstract: The apparatus according to the invention for filtering contaminated liquids, such as cooling and/or lubricating liquids which are employed during the machining of workpieces with metal removal for example, has a liquid container (11) with an inlet (13) for contaminated liquid and an outflow (15) for filtered liquid, and a filtering insert which can be connected to the outflow is disposed in the container.

Abstract: A second purifying apparatus 2 for furthermore purifying working solution purified by a first purifying apparatus 1 is disposed downstream of the first purifying apparatus 1. A working-solution introducing pipe 42 which is capable of diffusing and discharging the working solution from the lower end thereof is disposed in substantially the central portion of the working-solution accumulating tank 40 in which the working solution is accumulated. A filter 44 for vertically sectioning the working-solution accumulating tank 40 at an intermediate position is provided. A weir 45 is formed at an upper end of the working-solution accumulating tank 40. Moreover, a separating wall is formed along the inner wall of the weir 45. A solution gathering groove 47 is provided for the outer surface of the weir 45.

Abstract: A chip treatment device 100 includes a box-shaped housing 110, and an upper surface panel 112 of the housing is connected to a sloped portion 114. The interiors of the housing 110 is divided into upper and lower areas by a partition panel 130, and to the areas are provided a first cutting fluid bath 150 and a second cutting fluid bath 160. Chains 240 stretched between driving sprockets 210 and chain guide units 230 are equipped with scraper units 250 moving in the direction of the arrow. The chips coming in from an entrance opening 180 is separated from cutting fluid while being conveyed on the separation panel 130. First and second filter units 170, 300 filter said cutting fluid.

Abstract: An apparatus for filtering machine coolant which includes a filtering belt conveyor having a series of bars on the outer surface of the filtering belt conveyor. The filtering belt conveyor is located inside of a tank along with a separate drag conveyor which removes fines that are sprayed off the filtering belt conveyor. There is a partition in the tank between the filtering belt conveyor and the separate drag conveyor.

Abstract: A filtration apparatus designed to remove solid contaminants from a liquid includes an endless filtration belt located in a liquid tank, so that liquid flows through minute openings in the belt into a liquid collection box located within the belt envelope. Edge areas of the belt are engaged with annular support walls carried by the tank side walls, such that a continuous seal is provided against migration of contaminants around the belt side edges. Contaminants collecting on the belt surface can be periodically removed by moving the belt across a spray system that dislodges the contaminants from the belt into the tank. A drag conveyor removes contaminants from the tank.

Abstract: A particle separator having a housing, a radially centered core, helical augers which force a fluid stream in a helical flow direction, and separator devices for the progressive separation of particles from a particulate contaminated fluid stream.

Abstract: A rectangular clarifying tank has an inclined beach formed of sheet metal and having 575 holes per square inch, each hole having a diameter of 20 thousandths of an inch. Two side chain drives advance several scrapers along the beach. Each scraper has a rotatable knurled pipe which turns the sludge and aids dewatering through the beach. The sludge removed from the clarifier has a solids content of between eight and twelve percent. Additional dewatering may be accomplished by applying a vacuum to the last one-quarter of the beach. A tray positioned beneath the beach collects water which drains through the beach. The drain water may be returned to the clarifier tank or may be directly treated as clarified water.

Abstract: A new process and apparatus efficiently dewater aqueous solids residual after fermentation and distillation, such as corn stillage. The feed stream of aqueous solids slurry is fractionated into two or more substreams in such a way that one of the substreams contains predominately heavy particulate solids and has substantially improved free-draining characteristics. A second substream contains lighter particles, entrained fines of the heavy particles, and a major portion of the liquid from the feed stream. The free-draining substream is dewatered using a device such as a screen centrifuge or a screw press, both of which produce a cake of relatively high solids content. The remaining liquid from the feed stream is concentrated in an evaporator, before being mixed with the dewatered solids which may be dried to produce an animal feed.

Abstract: An oil-water recovering and separating apparatus for separating a raw fluid consisting of a mixture of oil and water into an oil part and a water part on the basis of difference in specific gravity, comprising: intake means for taking in the recovered raw fluid; a separation tank for separating the taken-in raw fluid; a water-part reservoir tank continued to the separation tank; a drain tank continued to the water-part reservoir tank; an oil part recovery portion disposed in the separation tank, the oil part recovery portion having a recovery port disposed slightly above the fluid level of the raw fluid in the separation tank; and scrape-up means provided in a position facing the recovery port so as to move along the fluid level.

Abstract: A method and system for processing waste dries and reforms a sludge stream of the waste with a first reformed effluent stream to produce a gas effluent stream and a solids effluent stream. The gas effluent stream is reformed further to produce the first effluent stream, which is then directed back to the sludge stream.

Abstract: A liquid filter, such as an oil or gas filter, is provided which has a cup-shaped cylindrical filter housing to be mounted in a vertical orientation, with a releasable cover closing the filter housing. A liquid inlet passage and a liquid outlet passage are provided at the housing. A replaceable, substantially hollow cylindrical filter insert is vertically arranged in the housing. The filter insert being formed of a filter material member arranged between an upper and a lower disc. A collar, which is impervious to solid contaminants removed by the filter material member, extends from the lower disc upwardly along a part of the height of the filter insert, surrounding an outer circumference of the filter insert member. In this manner a collection chamber is formed for the filtered solid particles at the lower disc.

Abstract: The invention relates to a fluid treatment assembly comprising a filter (4) which itself comprises filtering elements (5) and a cleaning device (12) for periodically cleaning each filtering element including a conduit (17) for the evacuation of the cleaning fluid filled with impurities resulting from the cleaning, the treament assembly further comprising a centrifuging device which itself comprises a rotary enclosure (37) connected to a fluid admission conduit (28).According to the invention, the filtering elements (5) and the enclosure (37) are contained in a single casing (1A-1B), while the admission conduit (28) is directly connected (29-30) to the conduit (17) for evacuating the cleaning fluid.The invention finds an application in the construction of a compact and reliable assembly.

Abstract: A flattened end portion of flighting is added to the conventional auger flighting at the output end of an auger separator. A plug zone is created in the inner perforated tube between the flattened flighting and pressure end gates, which normally close the inner tube. The auger shaft extends beyond the flattened flighting to the end of the inner tube, forming a stub shaft which centers the auger in the inner tube when the plug zone is filled with material around the stub shaft. The material functions as a bearing to center the auger shaft. The material in the plug zone is pressed against the perforated inner tube, causing the bonded water to be removed. The flattened end portion flighting extends circumferentially approximately 70.degree. to 80.degree. around the auger shaft, adding an axial length of approximately 1/4 to 3/8 inch.

Abstract: An apparatus for cleaning recycled pulp includes an upright cylindrical vessel having an upright cylindrical screen member open at its top and bottom ends and having a perforated screen wall which is centered on a vertical axis in the vessel. A plurality of upright, elongated blades are mounted for rotation on the vertical axis in close proximity to the screen wall. A pulp slurry entrained with pressurized air is introduced under pressure into an inlet in the bottom of the vessel. The rotating blades clear the screen wall while creating a rising vortex of air bubbles produced by the pressurized air for carrying ink and/or contaminant particles upwardly through the inner volume of the screen member. An "accepts" outlet at the center of the vessel draws off pulp in suspension that has been passed through the screen wall. A "rejects" outlet at the top of the vessel draws off ink and contaminant particles carried by the air bubbles in the upwardly-moving vortex.

Abstract: In an apparatus for separating particulate material from a particle-containing liquid, at least the section of the cylindrical housing (10) provided with perforations (5) is designed as a driveable drum sieve (2') so that the solid materials are optimally separated from the liquid phase and are at the same time freed from particulate impurities.

Abstract: A filter separator for decomposing a fluid consisting of a mixture of liquids containing solid components has a filter press combined with a micro- and ultrafiltration apparatus. The filter press separates the solid components from the fluid and the micro- and ultrafiltration apparatus separates from one another liquid components according to their different molecular structures. A modular construction with a very compact design and relatively large filter surface areas is shown and described.

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: A novel apparatus for isolating solids or wetcakes from fluids is disclosed. Said apparatus is closed to the atmosphere and comprises a slip joint and a floating auger which allows for solid recovery under pressure in the absence of substantial solvent volatilization.

Abstract: A band filter for the removal of foreign material particles from liquid baths, including a tub filled with liquid, guide rollers for a filter band arranged within the tub bath, the band being introduced into the tub from one side, guided with a spacing above the bottom of the tub and subsequently again conveyed out of the tub towards the top. The filter band being configured as a powered endless screen tissue band or as a filter fleece which is placed upon a support belt that is also driven in an endless manner. The filter fleece can in this case be unwound or reeled off a roller arranged outside of the tub, and a negative pressure chamber receiving the filtered liquid is arranged beneath the filter band. The faces of the filter band facing the bottom of the tub lie on a plurality of support faces extending transversely to the guidance direction of the filter band so as to be spaced from each other and parallel next to each other.

Abstract: The grit conveyance system of a classifier having a wash region above the liquid layer is provided with a vacuum means in the wash region for positive removal of liquids through a metal screen for disposal.

Abstract: Apparatus for separating solids and liquids has an initial separator for removing coarse solid material from a mixture of solids and liquids, a first screen for separating further solid material from the liquid and a first auger extending axially through the first cylindrical screen for removing the separated further solid material from the first cylindrical screen. A second screen receives the liquid from the first screen and separates fine particles from the liquid, and a compactor between the first and second screens compacts the solid material removed from the first screen by the first auger. A second auger is provided in the second screen for mixing and removing the compacted solid material and the separated fine particles.

Abstract: A filtration system for use in a settling tank includes a star shaped filter having equally spaced radial panels with the filter septums forming the downwardly extending sidewalls of each panel or compartment. The framework of the filter allows radial removal of the filter septums for cleaning and maintenance. A unique pressurized wet seal seals the filter to a clean liquid vacuum delivery duct and can also seal the system pump in the settling tank to the vacuum duct.

Abstract: A filter assembly for filtering contaminants from liquid. A housing has a filtering chamber and an inlet port and an outlet port communicating with the chamber for flow of liquid therethrough. Filter media is located in the filtering chamber for filtering contaminants from liquid flowing through the filter media to the outlet port. A sump region is provided in the filtering chamber at the bottom thereof below the inlet port. Contaminants in the liquid entering the chamber from the inlet port tend to gravitate toward the sump region for collection. A separator member is located in the filtering chamber below the inlet port. This separator member substantially separates the filter media and sump region, and gravitating contaminants gravitate from the inlet port to the separator member. The separator member provides for communication of the gravitated contaminants into the sump region but tends to trap those contaminants in the sump region.

Abstract: A filtration system for use in a settling tank includes a star shaped filter having equally spaced radial panels with the filter septums forming the downwardly extending sidewalls of each panel or compartment. The framework of the filter allows radial removal of the filter septums for cleaning and maintenance. A unique pressurized wet seal seals the filter to a clean liquid vacuum delivery duct and can also seal the system pump in the settling tank to the vacuum duct.

Abstract: A method and apparatus for enhancing knot transport in a knot drainer has a provision for decreasing tangential velocity of the feed slurry in the inlet chamber, a hydrodynamic force reduction provision in the screening chamber, and a provision for increasing the ratio of circumferential friction forces to axial friction forces in a housing extension above the screening chamber. This drastically reduces frequency of knot transport interruptions which would otherwise occur in the knot drainer, thereby improving knot drainer performance efficiency.

Abstract: A fluid separator apparatus using a cylinder in which a piston is fitted and a conic tank is placed on top of the cylinder. The apparatus functions on the basis of the different densities of the liquids. The lighter liquid placed on top of a heavier liquid will enter into the conic tank first by the upward movement of the piston. As the piston moves upward, the lighter liquid enters into an exit pipe at the top of the conical tank and passes into a container outside of the apparatus. The fluid separator also contains a solid particle stainer and sweeping means to continually clean said stainer. Coloring means are included to permit visual inspection of the separation of the liquids at the various parts of the apparatus.

Abstract: A cleaning system for use in treatment of excess paint is disclosed. The system includes a work area for cleaning excess paint by trapping the paint in a cleaning liquid, a collecting gutter being provided in a floor of said work area for introducing the cleaning liquid containing the excess paint in the form of paint sludge. The collecting gutter incorporates a filter for filtering the cleaning liquid introduced into this gutter. The system further includes a collecting device for collecting the paint sludge trapped by the filter.

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: Apparatus for separating liquids and solids, comprising, separator screen means for receiving and separating the solids and liquids, conveyor means for feeding the separated solids upwardly from the separator screen means, and compactor means for compacting the solids, the conveyor means comprising a first conveyor extending at a first upward inclination through the separator screen means and a second conveyor extending further upwardly and at a greater inclination than the first conveyor means.

Abstract: The present invention relates to a device for separating particles from flowing medium, whereby separation of coarse particles occurs in a cyclone member (4) and separation of fine particles in a filter device (10) inside the cyclone member. For providing this separation of coarse particles in a cyclone member and additionally, fine separation in a cleanable filter device, there is, inside the cyclone member (4), provided a filter cleaning device (15) which engages filter material (16) included in the filter device (10) for cleaning said filler material from particles adhering thereto when the filter device (10) is rotated relative to the filter cleaning device (15), the filter cleaning device (15) relative to the filter device (10) or the filter device (10) and the filter cleaning device (15) relative to each other.

Abstract: Apparatus for continuously removing from the mother liquor the crystals contained in a suspension of crystals in the mother liquor and for washing the crystals with a washing liquid, comprising a closed cylindrical chamber, feed devices for the suspension of crystals, discharge devices for removing the disintegrated crystal bed, feed devices for washing liquid, filter devices in the form of a flat ring for extracting mother liquor from the suspension supplied, while retaining crystals, transport devices in the form of rotating blades which are fitted in the cylindrical chamber above the filter devices and stator blades above the rotating blades being able to move backwards and forwards over a certain stroke in the axial direction between the filter devices and the stator blades fitted at a distance above the filter devices.

Abstract: A filter assembly for filtering contaminants from liquid. A housing has a filtering chamber and an inlet port and an outlet port communicating with the chamber for flow of liquid therethrough. Filter media is located in the filtering chamber for filtering contaminants from liquid flowing through the chamber. A sump region is provided in the filtering chamber for collection of contaminants from the liquid, and a separator member is located in the filtering chamber and substantially separating the filter media and sump region. The separator member provides for communication of the contaminants into the sump region but tends to trap contaminants from the liquid received in the sump region.

Abstract: The invention is a screening device suitable for screening a liquid material having solid matter suspended in it, which comprises a number of sets of discs, the discs of each set being rigidly mounted on a shaft, with the discs on each shaft being separated from one another axially, means mounting the shafts about parallel axes, with the discs of adjacent shafts being interleaved with one another and means to cause the shafts to rotate independently in the same rotational sense such that successive shafts rotate progressively faster to cause the solid matter suspended in the liquid material to be moved in a direction from the slowest shaft to the fastest shaft. The device is used particularly in sewage processing plants.

Abstract: A filtering system includes a filter drum assembly. The system includes a filter tank with a conveyor in the bottom which removes contaminants from liquid in the tank. The filter tank also has supports therein by means of which the filter drum assembly is removably supported in the tank and can be removed as a single assembly. The filter drum assembly includes a filtering drum located in the tank and supported by a suction pipe connected by a separable fitting to a suction pump. A drive shaft is vertically positioned above the drum and is rotatably supported by an end wall of the drum. The shaft drives a wiper arm having a wiper blade in contact with the filtering drum wall and the blade is periodically moved around the drum wall to clean filter cake therefrom. The wiper arm is driven by a one-way clutch, an arm, and a fluid-operated ram which is also supported by the suction pipe.

Abstract: An apparatus for processing muddy water containing particulate matter comprising a tank for receiving the particulate matter, and takeout means for receiving the particulate matter settling down in the tank and then conveying the received particulate matter to the upper portion of the tank, wherein the takeout means includes a belt conveyor provided with a first conveyance section disposed on the bottom of the tank and receiving the particluate matter to convey the received particulate matter to a predetermined portion in the tank and a second conveyance section for conveying the particulate matter conveyed by the first conveyance section upward in the tank while sandwiching the particulate matter between a pair of endless belts.

Abstract: A cleaner for an aquarium including a filter, a water pump, a waste-pipe with one end connecting to the water pump, an air compressor, a hose with one end connecting to the air compressor, and a base assembly. The base assembly includes a rectangular box having a top sieving plate, a V-shaped gatherer disposed in the box, a cylinder clamped in the box between the sieving plate and the gatherer, a rotatable cleaning brush rotatably disposed in the cylinder, and an actuating paddle wheel fixed to one end of the rotatable cleaning brush. A number of sieving slits are provided on the sieving plate. A hole is provided on the cylinder for receiving the other end of the waste-pipe, and another hole is also provided on the cylinder at its lower surface near one of its ends for receiving the other end of the hose, and a number of notches are formed on the lower surface of the cylinder for passing the depositing impurities.

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: Apparatus and a method accomplished by the apparatus is disclosed for cleaning shards, such as clay pigeon fragments, of debris and contaminant materials for recycling. The apparatus includes a reservoir containing a washing fluid and a moving conveyor partially submerged in the fluid. A screen has an outlet positioned above the submerged portion of the conveyor so that the shards may pass along the screen to the conveyor while some debris and contaminant material falls through the screen and into the reservoir away from the conveyor. The shards are washed in the fluid and are conveyed by the conveyor out of the fluid and past a bank of spray nozzles which spray the shards in a direction against the motion of the conveyor. Preferably, the screen from the bottom of a hopper and the shards are introduced by the hopper onto the conveyor under the influence of a fluid spray. A pump system circulates fluid through the various sprayers. A weir is included to trap buoyant debris.

Abstract: A system of continuously and efficiently separating liquid from sludge is disclosed which includes two parts, the mixer conditioner and the rotary drain. The two parts are virtually always used together. The mixer conditioner may include an adjacent vertical receiver which may serve to extend residence time. The receiver, if used, is connected at the bottom to the tangential inlet line to the mixer conditioner. This inlet line provides the means for circulation therethrough the watery sludge to which has been added a flocculant in a gentle manner so as to cause mixing while not causing shearing. A slow moving horizontal impeller operates to maintain the spiraling motion initiated at the tangential inlet. The outlet, also tangential, delivers to the rotary drain. The rotary drain is a compartmentalized cage that is decreasingly baffled from compartment to compartment.

Abstract: Drill cuttings, and similar slurries or mixtures oily solid particles, are treated by a dryer apparatus which vaporizes the liquid and discharges relatively large solid particles for disposal. Vapor and entrained solid fines are conveyed from the dryer to a condenser and then to a rotary drum vacuum filter having a precoated filter media disposed thereon. The solid fines are filtered by the filter media comprising diatomaceous earth or perlite and the clarified condensed liquid is conveyed to separator means for separating oil, water and any other liquids present. The filter media stripped from the filter and contaminated with entrapped solid fines is conveyed through the dryer means and disposed with the solids particles being discharged from the dryer.

Abstract: A water-solids separator including a casing forming a reservoir and having an inlet and an outlet, a perforated filter screen assembly positioned in said casing between said inlet and said outlet, an overflow weir in front of the outlet to define the depth of water in the reservoir, a baffle plate on the inlet side of said filter screen assembly to direct incoming water toward the filter screen assembly and a conveyor assembly on each side of the filter screen assembly for cleaning the surfaces of the filter screen assembly, each conveyor assembly including a number of wiper blade flights located in positions to move in abutting engagement across the surfaces of the filter screen assembly, each flight including a resilient wiper blade or brush to clean the perforations in the filter screen assembly.

Abstract: A method and apparatus in which a water sludge suspension is initially separated from the water by skimming and then is conveyed to a dewatering station at which the sludge is oscillated or vibrated to separate mechanically the water from the solid sludge material. Preferably, at the dewatering station, the sludge is dropped a predetermined distance onto a sieve, the impact of the falling sludge producing a squeezing action on the sludge to initially exude the occluded water. The sieve, which is inclined, is then oscillated or vibrated to work the sludge to further exude water therefrom and to urge the sludge down the inclined surface of the sieve. After traveling to the bottom of the sieve, the sludge, now substantially dewatered, is received by a container for disposal.