Abstract: A centrifuge provided with: a bowl having a plurality of extension lugs formed on an opening rim section at one end of the bowl in the axial direction, the extension lugs being spaced apart from one another in the circumferential direction; a screw conveyer rotatably housed inside the bowl and rotatable at a different rotational speed than the bowl; a hub forming solid discharge ports between circumferentially adjacent pairs of the extension lugs, the hub connecting to the extension lugs and covering an opening of the opening rim section from the axial direction; and a wear-resistant sleeve including a sleeve body and a flange. The sleeve body covers lug inner surfaces of the extension lugs and the flange extends in an arced shape along the opening rim section. The sleeve body is attached with axially extending bolts to the opening rim section at a position that avoids the extension lugs.

Abstract: In a continuous centrifuge, a core end surface component separated from a core body is arranged inside a rotor, an air trap mechanism which automatically captures bubbles inside a sample is formed, and the bubbles are removed by centrifugal separation before the sample is sent to an outer circumferential portion having a high liquid pressure. In addition, when viewed in the axial direction, the core body and an upper rotor cover abut each other, and the core end surface component and a lower rotor cover abut each other, with appropriate pressure by biasing the core end surface component and the core body with a spring. Because a flow path between the rotor core and the rotor covers is maintained in a perfect state and the bubbles in liquid are also removed, the flow path may not be blocked by the bubbles and the centrifugal separation can be stably performed.

Abstract: The invention relates to an outlet device (10) of a solid-bowl screw centrifuge for separating a multi-phase material, which outlet device is arranged on an end wall (12) of a centrifuge drum, which rotates about a longitudinal axis, at an outlet opening (20) formed in the end wall, which outlet device comprises a diverting channel (22) for diverting a liquid phase of the material which passes through the outlet opening (20), wherein the diversion relative to the longitudinal axis amounts to an angle (32) between 50° and 90° with respect to the circumferential direction, and which outlet device has an aligned rectilinear weir edge (30) for limiting the emergence of the liquid phase, wherein the angle of the alignment of the weir edge (30) relative to the end wall (12) as viewed from the outlet opening (20) amounts to between 0° relative to the end wall and minus 6° toward the end wall.

Abstract: A screen-type screw centrifuge including a screw drive shaft, a screw hub, a hollow screw main body and a ring-shaped annular-gap cover. At least one axial access channel is formed radially between a screw main body circumferential wall and the annular-gap cover. Using a tool engagement portion of a tightening means, by which the screw main body is fixed to the screw hub with a first screw main body axial end portion thereof, is axially accessible from a second screw main body axial end portion.

Abstract: A method and system for separating a suspension into solid and fluid components. The suspension is centrifuged about a substantially vertical axis of rotation to concentrate solid components in a first lower flow stream and fluid components in a first upper flow stream. The first upper flow stream may be centrifuged about a substantially vertical axis of rotation to concentrate solid components in a second lower flow stream and fluid components in a second upper flow stream. The first lower flow stream, the second lower flow stream, or both, may be centrifuged about a substantially horizontal axis of rotation to separate water from stackable dry tailings. The method and system may be applied to separation of tailings or other suspensions.

Abstract: A vertical cuttings dryer (“VCD”) can be used to separate solid particulate from entrained liquid. In some examples, the VCD includes a screen mounted coaxially with an internal wiper housing that carriers a wiper sweeping out an annular space between the screen and wiper housing. The VCD may have a first motor connected through drive shaft to the screen and a second motor connect through a separate drive shaft to the wiper housing. A controller can independently control the speed of the first motor and the second motor to independently a magnitude of centrifugal force applied to material being processed as well as a residence time of the material being processed in the annular space.

Abstract: A centrifugal filtering device includes a centrifugal drum and a rotary filter. The centrifugal drum has a receiving space for accommodating the source fluid. The rotary filter rotatably mounted in the receiving space includes a filter body and a filtrate discharge pipe. The filter body includes a filter cartridge defining a filtrate-collecting space. The filtrate discharge pipe connecting the filter body is communicative in space with the filtrate-collecting space. By rotating at least one of the centrifugal drum and the rotary filter, the source fluid is driven to generate a vortex by a centrifugal force. The centrifugal force drives the source fluid to form a heavy-phase fluid hitting the centrifugal drum and a light-phase fluid approaching the filter cartridge. The light-phase fluid passes the filter cartridge and then reaches the filtrate-collecting space as a filtrate, and the filtrate is exhausted via the filtrate discharge pipe of the centrifugal filtering device.

Abstract: The present invention relates to a centrifugal machine (1) for drying granular solid materials, comprising a hopper (2), a centrifuging mechanism (3), associated to the hopper (2), provided with a rotary helical device (6) enabling the transport of the granular solid materials. Said centrifuging mechanism (3) is also provided with a perforated rotary piece (7), surrounding the rotary helical device (6) configured to remove, by centrifugal force, free liquids adhered to the surface of the granular solid materials. Additionally, the machine (1) comprises a solid outlet duct (5) and a solid collecting chamber (8), arranged between the centrifuging mechanism (3) and the solid outlet duct (5), capable of receiving the centrifuging granular solid materials from the rotary piece (7). The solid collecting chamber (8) is provided with a solid conducting rotor (9), which comprises radial blades (10) configured to push the granular solid materials and impart an increase in tangential velocity to them.

Abstract: A casing that squeezes sludge floc at one end portion, a screw shaft, a first screw blade spirally provided on an outer peripheral surface of the screw shaft, and a second screw blade provided side by side along a longitudinal direction of the screw shaft with the first screw blade with a predetermined interval from the first screw blade, are included. In the casing, a concentration zone and a separated liquid zone, which are substantially divided from each other by the first screw blade and the second screw blade, are formed. By rotation of the screw shaft, the sludge floc is squeezed in the concentration zone to be separated into sludge and separated liquid, and the separated liquid is moved rearward in the separated liquid zone to be discharged, while the sludge is discharged outside.

Abstract: A rotary sorting apparatus comprises a large-diameter rotary drum for sorting a mixture of materials received through a first end of the drum and expelled through a second end. A plurality of slew rings are attached circumferentially to the outer surface of the drum for supporting and rotating the drum. Each slew ring comprises an inner race placed concentrically within an outer race, with bearings between them allowing the inner race to rotate freely within the outer race. The inner surface of the inner race is attached to the outer surface of the drum and rotates with the drum, while the outer surface of the outer race is fixed to the supporting structure. A rotator, such as a wheel, in contact with the outer surface of the drum causes the drum to rotate about its longitudinal axis.

Abstract: Machine (1) used in plants for making puree or fruit juice starting from vegetable or animal food, such as a rough extractor or a fine extractor, comprising a cylindrical body (2) having an inlet (3) for the product to treat, an outlet (4) for part of product that can be used and an outlet (5) for part of product to dispose of. The product put in the cylindrical body (2) of the machine (1) is pushed by centrifugal force of a plurality of blades of an armature (6) to pass through a sieve (7) having holes (8) and having a cylindrical or conic shape. The armature (6) is wheeled by a motor through a shaft (15). The machine (1) has a plurality of holes or nozzles (11) suitable for supplying in the sieve (7) a flow of washing liquid, for example water or diluted juice, in longitudinal direction, or radial direction, with respect to the machine (1), so that the blades of the armature in quick rotation forced it by centrifugal force against the inner surface of the sieve.

Abstract: An apparatus for filtering a material from a medium includes a first housing having a wall with a plurality of openings formed therein, a conveyor disposed in the housing for moving the material therealong, and a conduit line communicating with the interior of the housing for supplying the medium to the apparatus. At least one of the first housing and the conveyor rotate relative to a central axis to direct the medium toward the wall so as to separate the material from the medium. A method for filtering a material from a medium includes supplying the medium to a first housing, spinning the medium within the housing, passing the medium through a wall of the housing to separate the material from the medium, moving the material along the housing, introducing a fluid into the material within the housing, and washing the material using the fluid.

Abstract: The present invention relates to separating one or more of sand and other particulate matter from a mixture of animal waste and water. The present invention can help to control the discharge of noxious odors while processing material containing animal waste. An exemplary apparatus in accordance with the present invention includes a cylindrical housing and a non-rotating collection table. An exemplary apparatus in accordance with the present invention includes optional shield provided inside the cylindrical housing that can help to capture the particulate matter and that can also help to reduce the discharge of noxious gas and odors from the apparatus.

Abstract: A centrifugal dryer for the separation of pellet-like substances from process water including a housing, a rotor arranged in the housing and a screen surrounding the rotor at the peripheral side. The screen has at least one porous screen member which is placed in an arcuate manner around at least one screen carrier hoop and is releasably fastened thereto. The screen is composed of a plurality of screen members which mutually overlap in the peripheral direction and are clamped tight to the screen carrier hoop by one or more tension belts which wrap around the mutually overlapping screen members at the peripheral side.

Abstract: A centrifugal filter apparatus including a canister housing having a frusto-conical internal surface, and outlet adjacent the minor diameter of the internal surface and an inlet spaced axially toward a major diameter, a central annular filter element and centrifugal radial rotating fins extending radially from adjacent the external surface of the filter element to adjacent the generally frusto-conical internal surface of the canister having a generally frusto-conical outer surface conforming to the frusto-conical internal surface of the canister. In one embodiment, the filter apparatus includes a plurality of reaction canisters, where the outlet of the first canister is the inlet of the second canister and the radial fins drive reaction products from the first canister to the second canister.

Abstract: The present invention relates to separating one or more of sand and other particulate matter from a mixture of animal waste and water. The present invention can help to control the discharge of noxious odors while processing material containing animal waste. An exemplary apparatus in accordance with the present invention includes a cylindrical housing and a non-rotating collection table. An exemplary apparatus in accordance with the present invention includes optional shield provided inside the cylindrical housing that can help to capture the particulate matter and that can also help to reduce the discharge of noxious gas and odors from the apparatus.

Abstract: The present invention relates to a centrifugal separator for separating solid particles from a liquid mixture, said centrifugal separator comprising a rotor body which is rotatable around an axis of rotation, the rotor body having a separation chamber with an inlet for the liquid mixture, at least one liquid outlet for a separated liquid from the liquid mixture, a sludge outlet for the separated solid particles, a screw conveyor adapted to rotate in the rotor body around the axis of rotation, at a speed differing from the rotational speed of the rotor body, for transporting the separated solid particles in the separation chamber towards and out of the sludge outlet, a drive arrangement adapted to rotate the rotor body and the screw conveyor at their respective speeds, and a control unit which is adapted to control the drive arrangement to rotate the rotor body at a first speed during a separation phase and at a second speed, which is lower than the first speed, during a particle discharge phase.

Abstract: A horizontal centrifugal scroll screen apparatus including: a housing; a frusto-conical screen assembly mounted within the housing and having an outer inlet end and an inner discharge end, the screen assembly being mounted for driven rotation via a base-of-spoke piece disposed across the inner discharge end thereof; and a frusto-conical scroll assembly coaxially mounted for differential driven rotation within the screen assembly and including an outer closed end in the proximity of the outer inlet end of the screen assembly and being adapted to direct material to be screened from a material supply conduit to the outer inlet end of the screen assembly for screening and conveyance to an outlet provided in the base-of-spoke piece.

Abstract: A centrifuge (2) for separating solids from liquid of a slurry with a conveyor (12) having a hub (14) rotatable about an axis (34) and at a helical blade (16) extending axially and radially from the hub. A bowl (4) including a cylindrical section (6) extending from an upstream end of the conveyor and a conically diverging screen section (10) extending to a downstream end of the conveyor extends about the conveyor and is rotatable about the axis. The conically diverging screen section includes an angle (40) that reduces the coefficient of friction of the solids to allow a cake formed of the solids to slide in a controlled manner forward on the conically diverging screen section with minimal back pressure, but without allowing the solid cake to break loose from the conically diverging screen section and slide out of the centrifuge in an uncontrolled manner.

Abstract: An embossed screen having raised deflector elements on the internal surface is provided for a centrifugal pellet dryer. The deflector screen is formed as an integral structure, eliminating the need for separate deflector components secured by fastening elements along with the associated risks such as loosening or separation of the strip and contaminate build-up between the strip and the screen. The embossed deflector screen effectively deflects the pellets back toward the rotor where the pellets are reengaged with rotor energy, resulting in increased dryer efficiency and flow rate. The embossed deflector screen also enhances the overall structural strength of the screen, reduces manufacturing costs and prevents pellet entrapment that can lead to contamination in future runs.

Abstract: A quickly cleanable water processor includes a shell, a water pipe, at least one filtering unit and a cleaning unit. The shell includes a space defined therein, a water inlet, a water outlet and an air inlet. The water inlet and outlet and the air inlet and outlet are in communication with the space. The water pipe is disposed in the shell and made with slots in communication with the water inlet. The filtering unit is detachably provided around the water pipe. The filtering unit includes alternately arranged membrane bags and water-guiding discs. The cleaning unit includes an air pump and an air pipe extended into the shell from the air pump through the air inlet. The air pipe includes apertures through which air reaches the membrane bags from the air pipe.

Abstract: A vertical cylindrical dewatering apparatus for dewatering fibrous slurries, slurry of manure and water, or other similar slurries. The apparatus includes a housing that includes a defined chamber having an enclosed top end with a slurry injector into the chamber, a centrally disposed first filtering element that includes first and second flightings, and a second vertical cylindrical filtering element including a support grid. The first and second filtering elements define the chamber. The slurry in-flow port at the top of the apparatus directs the slurry spiraling down between the flightings. The particles start building up at the bottom of the chamber as the water is filtered out from the housing through filtrate drains. Compressed air supplied through a rotating seal down through the centrally disposed filtering element moves through the filter, and through the particles forcing the water from between the particles out through the outer filter element.

Abstract: A filtering apparatus is provided for filtering raw water containing various impurities and mixtures into purified water, and more particularly, a multistage filtering apparatus is provided in which a rotor for generating vortex are installed in each of multiple layers of filtration membrane stacked within a closed barrel and the rotors are formed in multistage by having different diameter of each rotor so that the power for generating vortex can be remarkably minimized by generating the vertical vortex from top and bottom of the rotary rotor and the horizontal vortex from the outer side of circumference plate of the rotary rotor to be crossed over between membranes to prevent from blocking the pores or remove the deposited pollutants, and the closed-type barrel having multistage of membranes, rotary shaft, and rotary rotors for vortex generation within are constructed as a single module of filter pack, and the filter pack is connected and extended in accordance with required purified capacity so that large s

Abstract: The invention relates to an apparatus for the continuous filtering of impurities from a flowable compound, especially a plastic melt, comprising a filter insert (3) in the form of a hollow rotary body which is held to rotate about its rotational axis (A) relative to a housing (1, 2) and is flowed through by the flowable compound and which is arranged in a flow conduit of the housing (1, 2) between a feed conduit (7) for the compound to be filtered and a discharge conduit (8) for the filtered compound, and a discharge apparatus for impurities held back by the filter, which apparatus comprises a feed screw (9) cooperating with the filter insert (3). In order to provide advantageous constructional conditions it is proposed that the filter insert (3) comprises a disk-like filter (5) which is arranged on the face side of the rotary body and is coaxial to the rotational axis (A).

Abstract: The present invention relates to a process for the removal of solvent from a polymer emulsion or suspension, by use of a decanter centrifuge (10). The decanter centrifuge (10) provides an efficient thickening method. The process is especially useful for emulsion or suspension polymer compositions having high levels of solvent (low polymer solids) that could benefit from a thickening or dewatering step prior to drying in a dryer (14).

Abstract: A filter apparatus, including a dual-chambered, centrifugal and compressive filtration apparatus having a central annular filter element, rotating external radial fins extending from adjacent the filter element to adjacent an outer cannister wall and internal fins within the annular filter element. The disclosed filter element is a continuous resilient, cylindrical, helical filter coil including a regular sinusoidal shape defining loop-shaped filter pores between adjacent coils.

Abstract: A screen bowl type centrifugal separator which can not only eliminate the problem of the productivity being lowered resulting from the occurrence of clogging with the crystals in the screen part, but also minimize the amount of leakage of the object to be treated in the screen part. Inside of the hub (41) of the screw conveyor (40), a cleaning liquid receiving part (43) which receives the cleaning liquid for the cleaning nozzle (45) is provided, and further, in the cleaning liquid receiving part (43), a residual layer crystal cleaning liquid receiving part (46) which receives the cleaning liquid for cleaning the residual layer object to be treated in the screen part (30) is provided, being partitioned independently of the inside of the cleaning liquid receiving part (43).

Abstract: A method for separating a multi-phase mixture (50) into a liquid phase (54) and a dry phase (52) with a specified dry matter concentration. A decanting centrifuge (100) with an annular immersion disk (14) and a weir arranged at an end face of a centrifuge drum (20) are used. After start-up of the centrifuge drum (20), the multi-phase mixture (50) is introduced into the centrifuge drum (20). The dry phase (52) and the liquid phase (54) are drawn off. The liquid level in the centrifuge drum (20), is controlled by the weir and compared to a tolerance range until the specified dry matter concentration is reached. The weir is positioned so reaction to concentration changes in the multi-phase mixture (50) is possible in both directions. The speed of the centrifuge drum (20) is lowered incrementally and the weir position adjusted, so the dry phase concentration remains constant.

Abstract: A centrifugal pellet dryer including a stationary cylindrical screen, a driven elevating rotor in said screen elevating wet pellets inside the screen and imparting radial forces to the wet pellets to impact them against the interior of the screen to enable moisture on the pellets to be separated and discharged through the screen, a housing enclosing the screen and rotor and including an inlet for a slurry of pellets, an outlet for dried pellets and an outlet for water removed from the pellets. The side walls of the housing are constructed of a plurality of relatively large, flat panels made of plastic sheet material are supported in a metal framework to attenuate noise of the dryer produced by rotation of the drier rotor and impact of the wet pellets against the screen. A dewaterer in advance of the dryer also has walls made of plastic sheet material.

Abstract: This invention provides methods and apparatus for detecting and quantifying particulate matter suspended in a fluid. Specifically, the invention provides an integrated, affinity-binding based, analytical system comprising a platform for performing an affinity-binding based assay for specifically binding particulates including microbial cells, and a detection means for detecting the particulates specifically bound to a defined surface or chamber comprising the platform. Methods for using the analytical systems of the invention are also provided.

Abstract: A deflector mounted on the internal surface of a cylindrical screen in a centrifugal pellet dryer. The deflector is one or more vertical strips mounted in spaced relation on the interior surface of the screen by bolting to mating mounting strips on the outside of the screen. The deflector strips deflect the pellets moving along the interior surface of the screen. The edge of the deflector strip facing the direction of movement of the circulating pellets is inclined to deflect the pellets back toward the rotor. In another form, the deflector strip has angled flanges with one flange clamped between outwardly extending vertical side edge flanges on the cylindrical screen. The other flange extends at an oblique angle to deflect the circulating pellets back toward the rotor.

Abstract: A horizontal centrifuge has a basket rotatably mounted within a housing. The basket has a plurality of rings disposed between open and closed ends of the basket and a plurality of guide rails circumferentially spaced with respect to the rings. The guide rails have respective lengths extending between the open and the closed ends of the basket and provide a plurality of respective bearing surfaces. A tubular screen is supported in the basket by the plurality of bearing surfaces of the guide rails. A scroll with helical screw flights is also rotatably mounted within the basket. In various aspects of the invention, the tubular screen is made from six arcuate screen segments; the bearing surfaces of the guide rods and the peripheral edges of the helical screw flights are machined surfaces; and the scroll is fabricated.

Abstract: The invention relates to a device and method for milking animals, in which the milk is removed is conveyed though a filter element. Any material which is deposited on the filter element is detected and, if appropriate, identified. After detection is complete, the direction of flow through the filter element is reversed, so that filter material is rinsed clean. The invention also comprises a contamination meter for user in die device and method mentioned above.

Abstract: This invention provides methods an apparatus for detecting and quantifying particulate matter suspended in a fluid. Specifically, the invention provides an integrated, affinity-binding based, analytical system comprising a platform for performing an affinity-binding based assay for specifically binding particulates including microbial cells, and a detection means for detecting the particulates specifically bound to a defined surface or chamber comprising the platform. Methods for using the analytical systems of the invention are also provided.

Abstract: The invention relates to a device and method for milking animals, in which the milk which is removed is conveyed through a filter element. Any material which is deposited on the filter element is detected and, if appropriate, identified. After detection is complete, the direction of flow through the filter element is reversed, so that the filter material is rinsed clean. The invention also comprises a contamination meter for user in the device and method mentioned above.

Abstract: The invention relates to a centrifuge comprising a rotating drum (1) and comprising an ejection element (2) which rotates together with the drum in order to eject a cake (3) of solids, which is deposited on the inner side of the drum, in the axial direction (4). The ejection element (2) has a helix (5) which extends over the length of the drum. The helix (5) and the drum (1) are kinematically connected in such a manner that a reference point (A) at the circumference of the helix executes a rotational movement relative to the drum in the form of a sawtooth line (6, 8), with a first flank (7) of the sawteeth (8) corresponding approximately in its inclination (&agr;) to the pitch (&bgr;) of the helix whereas a second flank (9) of the sawteeth (8) corresponds to an approximately axial ejection movement.

Abstract: An improved blade design and method for enhancing the efficiency of operation of a centrifuge is disclosed based on measuring a varying value of the load on the centrifuge as the flow of contaminated fluid is injected into the centrifuge. The centrifuge has a plurality of blades with radially overlapping edges to keep the fluid being centrifuged compartmentalized and thus quiet for maximum efficiency. Additionally, the scraping blade assembly has blades which are angled in the scraping direction to force the solids towards the exit of the centrifuge, whether that be at the bottom or the top. A programmable logic controller monitors the load on the drive motor and compares a baseline value of load after accelerating the rotor to speed to the value of load while the contaminated fluid is injected into the rotor.

Abstract: The screw conveyor 200A includes a first flight 211 and a second flight 212 for transporting cake to cake discharging ports 105 in the small diameter section 103. Each flight 211, 212 has a small clearance portion 211a, 212a defining a small clearance d1 and a large clearance portion 211b, 212b defining a large clearance d2 between the tip of the flight and the inner peripheral surface of the small diameter section 103. The whole region of the large clearance portion 211b, 212b of each flight 211, 212 overlaps with the small clearance portion 212a, 211a of another flight 212, 211 at the same point in the direction of the rotation axis C.

Abstract: An improved screen basket for use with a centrifuge includes two adjoining screen sections. The first screen section is formed from a wear resistant material and is located proximate to the point at which slurry is introduced into the basket. The length of the first screen section is chosen so that the majority of potential wear caused by the abrasive slurry occurs within the first section of the basket. The second screen section is preferably formed from less expensive materials, such as steel wedge wire. The second screen section smoothly joins the first screen section and provides for further dewatering or separation of the accelerated slurry so that a dry cake is produced by the centrifuge.

Abstract: This invention provides methods and apparatus for detecting and quantifying particulate matter suspended in a fluid. Specifically, the invention provides an integrated, affinity-binding based, analytical system comprising a platform for performing an affinity-binding based assay for specifically binding particulates including microbial cells, and a detection device for detecting the particulates specifically bound to a defined surface or chamber comprising the platform. Methods for using the analytical systems of the invention are also provided.

Abstract: A strainer with a screen at its outer periphery is rotatably supported on a casing. A hollow pipe with paddles on an outer periphery of the pipe is fitted in the strainer. The hollow pipe is rotated at a rotating velocity different from that of the strainer. Slurry introduced into the hollow pipe is discharged through slurry outlets on the hollow pipe into inside of the strainer. Then, the slurry is hydrated by the screen under centrifugal action and is moved by the paddles toward a slurry outlet.

Abstract: A centrifuge has a hub and a first bowl section extending about the hub. The first bowl section has a given diameter at a downstream end of a heavy phase transport path along the first bowl section. The centrifuge further comprises a second bowl section having an input end at the downstream end of the first bowl section. The input end of the second bowl section has a diameter which is greater than the diameter of the first bowl section at the downstream end thereof. The input end of the second bowl section is disposed radially outwardly of the first bowl section at the downstream end thereof. A feed accelerator is disposed at the downstream end of the first bowl section, and more particularly between the downstream end of the first bowl section and the input end of the section bowl section, for tangentially accelerating a thickened feed or cake between the downstream end of the first conical bowl section and the input end of the second bowl section.

Abstract: An improved blade design and method for enhancing the efficiency of operation of a centrifuge is disclosed based on measuring a varying value of the load on the centrifuge as the flow of contaminated fluid is injected into the centrifuge. The centrifuge has a plurality of blades with radially overlapping edges to keep the fluid being centrifuged compartmentalized and thus quiet for maximum efficiency. Additionally, the scraping blade assembly has blades which are angled in the scraping direction to force the solids towards the exit of the centrifuge, whether that be at the bottom or the top. A programmable logic controller monitors the load on the drive motor and compares a baseline value of load after accelerating the rotor to speed to the value of load while the contaminated fluid is injected into the rotor.

Abstract: A wear and/or abrasive resistant tile e.g. for use on a scroll of a classifier, comprises a front, working face and a rear, mounting face defined by an upper face portion and a lower face portion spaced rearwardly from the upper face portion, the upper and lower face portions being in parallel planes; an upwardly projecting, upper lip formation defining an upper edge of the lower face portion; a downwardly projecting lower lip formation defining a lower edge of both the lower face portion and the tile, the lower lip defined by a chamfered face extending towards the lower face portion, with a lower surface of lower lip formation being non-pointed, and stepped upwardly from a geometrically projected apex, and at least one groove provided in the rear mounting face of the tile. A carrier is also included, and the carrier has a transverse slot. Also included are a tile and carrier combination, and a scroll provided with tile and carrier combinations.

Abstract: This disclosure sets forth a method and apparatus for operation of a centrifuge. It is constructed with a fluid inlet at one end delivering a liquid flow into a feed pipe and then into a rotating bowl. The bowl has an outer wall which is cylindrical and which is formed of adjacent individual pieces defining gaps between pieces. In one embodiment, 960 pieces define 960 parallel slots. The slots are quite narrow, having a width of 80 microns to thereby exclude particles larger than that. The mud flow is introduced into the bowl region, and a flited conveyor is operated to scroll the particles along the bowl towards the opposite end, a tapered beach cone, and that terminates at a set of discharge openings. Dry powder too large to pass through the slots is discharged from there. While the slots discharge the mud, particles are removed by this approach.

Abstract: A centrifuge includes a conveyor for moving cake along a cake flow path towards a cake discharge opening and further includes a baffle mounted to the conveyor and disposed along the cake flow path. The baffle is provided on an upstream side, facing substantially away from the discharge opening, with a concave profile or surface. This concave profile or surface serves to direct a portion of the cake, which is headed downstream along the cake flow path, into a recirculation or churning path directed partly back towards a pool. The recirculation or churning of the particulate material facilitates an enhanced washing thereof and improves the removal of valuable solutes or undesirable impurities from the cake.

Abstract: This invention provides methods an apparatus for detecting and quantifying particulate matter suspended in a fluid. Specifically, the invention provides an integrated, affinity-binding based, analytical system comprising a platform for performing an affinity-binding based assay for specifically binding particulates including microbial cells, and a detection means for detecting the particulates specifically bound to a defined surface or chamber comprising the platform. Methods for using the analytical systems of the invention are also provided.

Abstract: The present invention relates to a method for treating a pulp suspension in which the suspension is rotated in a rotationally symmetrical, rapidly rotating and permeable screen basket so that the suspension is subjected to the influence of a centrifugal force and dewatered at the same time as the suspension is conveyed by a rotating screw along the inner wall of the screen basket. The invention is characterized in that the suspension is caused to rotate by means which are arranged at the entrance to the screen basket, and in that the outer edges of the said screw bear against or are immediately adjacent to the screen basket and rotate at a higher speed than does the screen basket so that the screw scrapes the inner wall of the screen basket.

Abstract: The present invention relates to a method for treating a pulp suspension in which the suspension is rotated in a rotationally symmetrical, rapidly rotating and permeable screen basket so that the suspension is subjected to the influence of a centrifugal force and dewatered at the same time as the suspension is conveyed by a rotating screw along the inner wall of the screen basket. The invention is characterized in that the suspension is caused to rotate by means which are arranged at the entrance to the screen basket, and in that the outer edges of the said screw bear against or are immediately adjacent to the screen basket and rotate at a higher speed than does the screen basket so that the screw scrapes the inner wall of the screen basket.

Abstract: The present invention relates to a device and a process for thickening and conveying waste water sludges, especially with a centrifuge. Here, the centrifuge has at least one lysis device for the breaking down of cells of organisms contained in the waste water sludges. The lysis device of the device of the invention may take the form, for example, of a friction grinder (100; 200) with grinding discs (161, 162) or a milling cone, a shaped rasp, a roller crusher, a passing drum, a cutting unit with rows of rotary cutters or a pin grinder with rows of rotating pins. The device of the invention is capable of the lysis of cells, especially those of bacteria and protozoons so that their cell content discharges into the surrounding medium which then acts as a simulation reagent for the bacteria still present in the sludge, so that on the one hand the total quantity of sludge can be greatly reduced and on the other the bio-gas yield is considerably increased.