Abstract: A sorting station is provided with a deck screener including at least one filter and a fluid source configured to supply a fluid; a chute in fluid communication with the deck screener; a drying station in fluid communication with the chute; a settler in fluid communication with the drying station and the chute; and wherein the fluid is configured to wash matter disposed onto the deck screener. Methods of sorting a particular matter from a mixture of matters, and processes of filtering soil are also provided.

Abstract: A cyclone separator includes a cyclone body having an inlet and an underflow outlet. The inlet is configured to receive a mixed fluid therethrough and into the cyclone body. An underflow is separated from the mixed fluid and directed to the underflow outlet. The cyclone separator also includes an inlet insert positioned in and coupled to the inlet, the inlet insert being configured to direct the mixed fluid generally tangent to an interior surface of the cyclone body, a cyclone insert positioned at least partially within the cyclone body, the cyclone insert including a conical cyclone, and a sand collection vessel coupled to the cyclone body and in communication with the underflow outlet. The underflow is directed to within the sand collection vessel when separated from the mixed fluid in the cyclone body.

Abstract: A sorting station is provided with a hopper, at least one conveyor belt, a deck screener, including at least one mesh screen and at least one spray bar, a chute, having a tapering form, a prep screw, a dewatering screen, wherein the deck screener is configured to have vibration applied thereto to separate a matter from a mixture of matters, and where the at least one spray bar is configured to wash the mixture of matter and further separate a selected matter from the mixture of matters. Methods of sorting a particular matter from a mixture of matters, and processes of filtering soil are also provided.

Abstract: A glove is disclosed having a donning assister to enable a wearer of the glove to quickly and easily don a glove on a wearer's hand. In one embodiment, the glove includes a wrist cuff portion, a hem portion positioned at a base of the wrist cuff portion, an at least partially enclosed space formed within the hem portion, and a gripper positioned in the at least partially enclosed space. The at least partially enclosed space is defined by hem stitches and by a pair of laterally opposed stitches positioned on the palm side of the glove anywhere along a circumference of the hem portion between a thumb of the glove on one end and a pinky finger of the glove on the other end.

Abstract: Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening apparatus, particularly to recover sand reusable in a fracking operation.

Abstract: A method for using a composition for use as rock dust in an underground mine is disclosed. The composition includes a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert according to at least one of a 20-L explosibility test or an ASTM E1515 explosibility test. The fine, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.

Abstract: The invention provides structures, methods, and assemblies for bioretention systems, including tree box filters with substantially permeable panels integrated into a bottom portion of the tree box filter. The invention also provides methods and additional structures that are useful for managing stormwater flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.

Abstract: Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening apparatus, particularly to recover sand reusable in a fracking operation.

Abstract: A process for refining sand for use as frac sand includes the steps of passing the sand through a first fines separation stage to remove fine particles of contaminant from the sand, reducing the water content of the sand (such as to less than 20%), passing the sand into an attrition scrubber unit containing moving blades to delaminate clay and other contaminants from the sand grains, passing the sand from the attrition scrubber unit through a second fines separation stage to separate fine contaminants from the sand, and dewatering the resulting sand product in a further dewatering stage.

Abstract: An apparatus for prewashing comminuted plastic parts and for separating heavy materials or mineral constituents such as sand, silt, etc.

Abstract: A cross-flow ion mobility spectrometer consists of two parallel plates defining a volume between them. Analyte ions flow along an axis from an entrance end to an exit end through the volume. An RF confining field tends to guide ions along the axis. An analytical gas flow is established orthogonal to the axis. A DC electrostatic analytical field is oriented in opposition to the analytical gas flow such that the “drag force” on ions of the selected mobility due to the analytical gas flow is balanced by the force on the ions due to the electrostatic analytical field. The selected ions are thereby able to follow a stable path to the exit end of the cross-flow mobility analyzer. However, the force on ions of other than the selected mobility is unbalanced and these ions are deflected and lost.

Abstract: An improved technique for particle separation is provided. A serpentine structure is utilized in a continuous fluid flow environment to allow for suitable separation of particles to occur in a manner that does not require external application of forces to initiate the separation. The geometry of the serpentine structure and associated forces generated in connection with fluid flow therein suffice.

Abstract: This invention provides a method and an apparatus for quickly continuously fractionating biomolecules, such as DNAs, proteins and carbohydrates by taking advantage of differential bidirectional transport of biomolecules with varying physico-chemical characteristics, for example size, charge, hydrophobicity, or combinations thereof, through periodic arrays of microfabricated nanofilters. The passage of biomolecules through the nanofilter is a function of both steric and electrostatic interactions between charged macromolecules and charged nanofilter walls, Continuous-flow separation through the devices of this invention are applicable for molecules varying in terms of any molecular properties (e.g., size, charge density or hydrophobicity) that can lead to differential transport across the nanofilters.

Abstract: A method for separating seeds of different densities in a process stream, wherein the seeds are introduced into a magnetic process fluid for the formation of the process stream, which process stream is subjected to a magnetic field for the realization of a density stratification in the process stream, such that the individual seeds in the process stream assume a density-dependent position, after which the seeds located in or near a predetermined position or positions in the process stream, are separated from the remaining seeds in the process stream.

Abstract: A new type of asymmetric flow field flow fractionator, A4F, is described permitting improved sample fractionation means by providing a range of available channel lengths within the same A4F unit. With such an apparatus, samples may be optimally separated by performing such fractionations as a function of channel length. The ability to vary channel length within the same A4F unit has heretofore been unavailable.

Abstract: A classification device includes: a classification channel for classifying particles; a particle dispersion delivery channel as defined herein; a conveying fluid feed channel as defined herein; and at least one collection channel as defined herein, and the particle dispersion delivery channel satisfying relationship (1): A<B wherein A is a width of the particle dispersion inlet port as measured perpendicular to the flow in the classification channel on a cross-section taken parallel to the flow in the classification channel; and B is a width of the junction between the particle dispersion delivery channel and the classification channel as measured perpendicular to the flow in the classification channel on a cross-section taken parallel to the flow in the classification channel.

Abstract: A lateral displacement array that includes a conduit in which there is an array that includes a number of vertically asymmetrical posts that are positioned in an ordered fashion that is asymmetric with respect to the direction of liquid flow within the array such that particles of at least a critical size will be laterally displaced as they flow through the array is described. Methods for separating particles having at least a critical diameter from 16 a liquid using a lateral displacement array and a microfiltration system including a number of lateral displacement arrays are also described. Array subunits suitable for the assembly of the lateral displacement array are also described that include posts on either side of a floor that are arranged on each side with half the usual density so that when the subunits are combined a lateral displacement array with the desired array of posts is formed.

Abstract: The present invention is directed to devices, systems and methods for removing undesirable materials from a sample fluid by contact with a second fluid. The sample fluid flows as a thin layer adjacent to, or between, concurrently flowing layers of the second fluid, without an intervening membrane. In various embodiments, a secondary separator is used to restrict the removal of desirable substances and effect the removal of undesirable substances from blood. The invention is useful in a variety of situations where a sample fluid is to be purified via a diffusion mechanism against an extractor fluid. Moreover, the invention may be used for the removal of components from a sample fluid that vary in size. When blood is the sample fluid, for example, this may include the removal of ‘small’ molecules, ‘middle’ molecules, macromolecules, macromolecular aggregates, and cells, from the blood sample to the extractor fluid.

Abstract: A method of alleviating dust in the early stages of metal ore processing, such as copper ore, through mining the ore through concentration involves spraying and wetting crushed ore rock and ground particles and dust at least several of a series of locations with a dust suppressant containing major amounts of water plus minor amounts of an additive combination of glycerol and a selected non-ionic surfactant, and passing the wetted particles and dust to a metal concentrator where the additive combination does not interfere with metal concentration yield.

Abstract: Disclosed are embodiments of apparatus for sorting particles in a fluid stream by size. In one embodiment of an apparatus for sorting such particles, a housing is provided, which defines a channel for a fluid stream containing particles. A suction channel is also provided, which terminates at a suction port. The suction port is positioned adjacent to the fluid stream. The suction channel may be configured to create a low pressure region and thereby redirect particles in the first fluid stream such that they may be sorted by size.

Abstract: The present invention relates to a fluidic separation device comprising: at least one microchannel (2; 66) extending along a longitudinal axis (X), the microchannel having a cross-section that presents a width measured along a first transverse axis (Y) and a thickness measured along a second transverse axis (Z) perpendicular to the first, the width being greater than the thickness, the microchannel including, along the second transverse axis, bottom and top walls (3 and 4); at least first, second, and third inlets (7, 8, and 9) in fluidic communication with the microchannel (2), the second inlet (8) being disposed on the second transverse axis (Z) between the first and third inlets (7 and 9); and at least first and third transverse separation walls (10 and 11) respectively separating the first and second inlets and the second and third inlets, the first and second separation walls (10; 11) being arranged in such a manner that the second inlet (8) is separated from each of said bottom and top walls (3 and 4

Abstract: The invention relates to a method of separating a particle fraction from a particle stream making use of gravitational force and which is performed in a fluid. This provides particle fractions that are collected in respective collecting means. According to the invention the fluid and the collecting means are moved in relation to each other defining a relative direction of movement. There are means provided to limit the movement of the particles to be separated with respect to the fluid in the relative direction of movement. The invention also relates to an apparatus for carrying out the method.

Abstract: An apparatus for acoustic concentration of particles in a fluid flow includes a substantially acoustically transparent membrane and a vibration generator that define a fluid flow path therebetween. The fluid flow path is in fluid communication with a fluid source and a fluid outlet and the vibration generator is disposed adjacent the fluid flow path and is capable of producing an acoustic field in the fluid flow path. The acoustic field produces at least one pressure minima in the fluid flow path at a predetermined location within the fluid flow path and forces predetermined particles in the fluid flow path to the at least one pressure minima.

Abstract: The present invention provides a method for classifying fine particles, the method comprising: introducing a fine particle dispersion in which fine particles are dispersed in a liquid medium into an inlet of a microchannel having the inlet and a recovery portion; and delivering the fine particle dispersion, which has been introduced through the inlet, to the recovery portion in laminar flow, wherein delivering the fine particle dispersion includes classifying the fine particles using the difference in sedimentation speed or floatation speed among the fine particles in the fine particle dispersion. The present invention also provides a device used in the method for classifying fine particles.

Abstract: Disclosed are embodiments of apparatus and methods for separating particles in a fluid stream by size. In one illustrative embodiment of an apparatus for separating such particles, a housing is provided, which defines a channel for a fluid stream containing particles. A suction channel is provided, which terminates at a suction port. The suction port is positioned adjacent to the fluid stream. A blowing channel terminating at a blowing port is also provided. The blowing port is positioned adjacent to the suction port such that the suction port is positioned in between the fluid stream and the blowing port. The blowing port and the suction port are configured to create a low pressure region and thereby redirect the first fluid stream towards the low pressure region.

Abstract: The invention relates to a method of separating solid particles, using a magnetic fluid, wherein the magnetic fluid is passed through a magnetic field for the purpose of changing the effective density of the magnetic fluid, and the particles are separated into fractions of different density. The present invention further relates to device for separating solid particles, using a magnetic fluid.

Abstract: A method of classifying fine particles includes: introducing a fine particle dispersion containing the fine particles to a micro flow channel having an inlet part and a collection part from the inlet part; moving the fine particles to an inner upper side of the micro flow channel by an electric field applied in a gravitational direction; and delivering the fine particle dispersion in a laminar flow state to the collection part. The delivering step includes classifying the fine particles according to differences in settling velocity among the fine particles.

Abstract: Systems and methods configured to continuously separate manure and bedding comprise a vertical housing without screens, grates, or filters therein, a manure and bedding inlet port coupled to the side of the housing, and a water inlet port coupled to the side of the housing. The system further comprises at least one inlet flow controller. Upon separation of the bedding and manure, the housing comprises a manure outlet port disposed on its upper portion and configured to output a product stream comprising separated manure and water. The housing further comprises a bedding outlet port disposed on its lower portion and configured to output a product stream comprising separated bedding and water.

Abstract: Disclosed are embodiments of apparatus and methods for separating particles in a fluid stream by size. In one embodiment of an apparatus for separating such particles, a housing is provided, which defines a channel for a fluid stream containing particles. A suction channel is also provided, which terminates at a suction port. The suction port is positioned adjacent to the fluid stream. The suction channel may be configured to create a low pressure region and thereby redirect particles in the first fluid stream such that they may be sorted by size.

Abstract: A dewatering device for aggregate products such as sand and gravel to allow dewatering to a moisture within the range of 8% by weight. This energy efficient dewatering system uses an inclined rotatably mounted dewatering screw to initially dewater, followed by an associated vibratory dewatering screen to achieve combined results that neither an inclined dewatering screw or a vibratory screen can achieve separately.

Abstract: A separator for separating solids and other objects (debris) from a liquid, and having a separator body (2) through which the liquid, having debris entrained therein (16, 19, 20), flows from an inlet (6) to an outlet (13), and a port (5) for diverting flow from the outlet during moderate flows whereby the debris entrained in the liquid is removed. A floor (11) wherein the separator is raised to form a hump (43) adjacent to or in which the opening (5) is located.

Abstract: A method for bulk separation of single-walled tubular fullerenes (100) based on helicity is provided wherein a solution or suspension of the single-walled tubular fullerenes (100) is flowed onto a crystalline or highly oriented substrate (30). The single-walled tubular fullerenes (100) that flow onto the substrate (30) have a respective longitudinal axis that is aligned with the flow direction (105). The direction of flow (105) is oriented at a predetermined angle with respect to a lattice axis (24) of the substrate (30) for energetically favoring adsorption of a respective plurality of single-walled fullerenes (100) having a tubular contour and a selected helicity. Subsequently, the adsorbed single-walled tubular fullerenes (100) of the selected chirality are removed from the substrate (30).

Abstract: The invention relates to a coarse dirt collector (7) for removing coarse material from a pulper (1). The coarse dirt collector (7) comprises a support arm (8) with a collecting basket (9). The collecting basket (9) consists of a frame (11) on which tines (Z) are fixed by means of a grid. The coarse dirt collector can be pivoted into and out of the pulper, to which end it moves about an axis of rotation (A) positioned at an angle to the plane that is perpendicular to the longitudinal axis (P) of the pulper. Said angle is between 20° and 40°. The advantage of said device is that the coarse dirt collector (7) has to carry out only one movement between its collecting and unloading position and unloading can take place automatically without need for a special scraping device. Because of the position of the tines (Z) there is no risk of undesirable loss of coarse material prior to unloading.

Abstract: A method and apparatus for separating a mixture of particles of various sizes in a capillary tube into groups by size using multiple forces of controlled amplitude. Ultrasonic radiation at a first selected frequency is applied to set up a standing pressure wave in the capillary tube, resulting in a first aggregating force which causes particles of all sizes to aggregate at positions within the capillary tube which correspond to nodes or anti-nodes of the standing wave. Transverse vibrations are also applied to the capillary tube. The frequency of the ultrasonic radiation is adjusted to reduce the magnitude of the first aggregating force. Inertial forces resulting from the transverse vibrations then cause the particles to separate by size. The apparatus and method allows a mixture of particles to be separated by size quickly, without requiring the use of high voltages.

Abstract: A method for separating materials, in which a mixture of materials is guided through a channel in a direction of flow that extends at least approximately parallel to the gravitational field. Utilizing a wash fluid conveyed through the channel in a direction transverse to the direction of flow of the mixture of materials, at least one material component of the mixture of materials that is to be separated is displaced from the mixture of materials and removed from the channel. A device is also provided that is particularly suitable for carrying out the method.

Abstract: An apparatus and method of separating heavy materials in garbage from light ones is taking advantage of water as a means for carrying floated garbage and submerged garbage and sinking the heavy materials in garbage by considering specific weight, buoyancy, and flow rate of water so as to remove the light materials in garbage and the heavy materials in garbage from the water container at different elevations and then to classify the heavy materials in garbage prior to collection.

Abstract: An apparatus and method of separating small rubbish and organic matters from garbage for collection by means of water by considering specific weight, buoyancy, and flow rate of water is disclosed. The apparatus comprises a plurality of conveyor screens incorporating injection nozzles, a less inclined channel, a conveyor, and an organic matter screen for effectively separating floated rubbish, organic matters, and sunk rubbish from garbage for collection.

Abstract: Mechanically harvested chili-pepper plants are sized into chunks and introduced into a water flotation system. Water is added at the top of a flotation vat and, for the most part, is withdrawn at the bottom using a venturi unit. The balance of the water is recovered as spillover from the top of the vat carrying the floating material. If the rate of water withdrawal at the bottom of the vessel is controlled such that it is as high as possible but less than what produces turbulence in the vat, the pulp material will drop with heavy seeds to the bottom with the extracted water while all other materials are skimmed away at the top. The very small differential in density between the pepper pulp and the rest of the plant and debris is sufficient to separate them under these specific conditions.

Abstract: An apparatus and method of separating medium-sized materials such as trash, bottles, floated articles, and submerged articles from garbage for collection by means of wind and water is disclosed. Moreover, an initial cleaning of garbage and a dilution of toxic materials contained therein are performed while disposing garbage, thereby significantly reducing a possibility of contracting diseases by or poisoning cleaning employees.

Abstract: A method of reblending sand in a classification tank having multiples stations and discharge valves within each station includes the steps of delivering sand to the tank; calibrating the tank to analyze the raw feed material and develop discharge rates, flow multipliers, and a mathematical model of the tank; and inputting a specification or quantity and sieve size distribution for a reblended sand product into a computer for controlling the tank. Then the tank is operated in a production mode and the discharge valves at each station of the tank are adjusted by the computer for percent open time and discharge rate. With one algorithm, the computer identifies which station has the most of a sieve size that is out of specification and diverts material at that station by closing the appropriate discharge valve(s).

Abstract: The invention relates to a method for separating materials, in which a mixture of materials is guided through a channel in a direction of flow that extends at least approximately parallel to the gravitational field. By means of a wash fluid conveyed through the channel in a direction transverse to the direction of flow of the mixture of materials at least one material component of the mixture of materials that is to be separated is displaced from the mixture of materials and removed from the channel. Furthermore, the invention relates to a device that is particularly suitable for carrying out the said method.

Abstract: A method, system, apparatus, and article of manufacture provide a cross-flow migration classifier capable of separating particles. The classifier provides a channel through which a sample, having one or more particles, passes in a first direction, wherein the channel comprises two or more walls that are permeable to a flow of fluid. A cross-flow enters the channel through one of the permeable walls and exits through another of the permeable walls. An imposed field is applied in a second direction that is counter to the cross-flow and having an orthogonal component to the first direction. The imposed field causes one or more of the particles to migrate at a first velocity opposite and/or equal to a second velocity of the cross-flow. The particles that migrate opposite to the cross-flow are continuously discharged from the cross-flow migration classifier.

Abstract: Methods and apparatus for sorting microstructures, such as macromolecules, viruses, cells, and minute particles, in a fluid using microlithographic sorting array that is reversibly sealed by a cover. A silicone elastomer cover is used in one embodiment. In another, silicon microstructures are used to case elastomeric replicas of obstacle arrays, the tops of which reversibly seal against a flat surface. The reversible seal allows access to fractionated microstructures within the structure for further analysis.

Abstract: A dewatering system for separating a stream of liquid from the items traveling therein. The dewatering system includes a primary grid which catches the stream of liquid from a flume or other device. The liquid stream, but not the solid items, passes through the primary grid and is caught by a baffle which smoothly redirects the liquid. The baffle is arranged with respect to the primary grid so that the surface of the stream flow through the grid is substantially tangential to a leading portion of the baffle.

Abstract: A method of reblending sand in a classification tank having multiples stations and discharge valves within each station includes the steps of delivering sand to the tank; calibrating the tank to analyze the raw feed material and develop discharge rates, flow multipliers, and a mathematical model of the tank; and inputting a specification or quantity and sieve size distribution for a reblended sand product into a computer for controlling the tank. Then the tank is operated in a production mode and the discharge valves at each station of the tank are adjusted by the computer for percent open time and discharge rate. With one algorithm, the computer identifies which station has the most of a sieve size that is out of specification and diverts material at that station by closing the appropriate discharge valve(s).

Abstract: An improved flow field-flow fractionation (flow FFF) process has been developed which permits the high-resolution separation of analytes without stopping or reversing the axial flow, introducing additional axial flow streams, or further splitting the axial flow stream. The improved procedure speeds up, streamlines, and simplifies the apparatus and the procedure without unduly concentrating the sample, permits the use of flow-sensitive detection technologies in a manner which has previously been difficult or impossible, and avoids the artifactual aggregation which is known to result from other relaxation procedures. The process also permits the calculation of the channel width w without reference to system or void peaks in the fractogram. These capabilities render the improved flow FFF procedure more accurate as well as more practical, and permit automated flow FFF separations to be routinely performed on commercially-available HPLC systems with only minor modifications.

Abstract: A method of reblending aggregate includes delivering aggregate of various sizes to the classification tank having a plurality of stations with primary and secondary discharge valves. The tank is then calibrated to determine raw feed analysis, discharge rates and the flow multipliers needed to develop a mathematical model of the tank. Inputting the calibration information data and the desired production specification into a computer allows the tank to be operated and controlled with appropriate adjustments in discharge rates and valve percent settings at each station. This method provides more accurate control than the existing min-max control methods. The apparatus for this method includes the tank, a pumping device, and a computer interconnected with a PLC and electrohydraulic mechanisms for valves at each tank station such that both the discharge rate from each station and the valve percent settings of the individual valves at each station are variable and controllable.

Abstract: Two-stage classification of a granular material, in particular a cement grinding feed, is accomplished in two classifiers connected in series in such a way that the separative behavior or the separative action and thus the particle-size distribution of the undersized or finished material coming from the second classifier can be modified with simple resources. Part or all of the oversized material of the second classifier is recycled to the second classifier.

Abstract: A device for separating dense particles contained in blood or one or more proteins contained in blood plasma by utilizing a separating arrangement. The separation arrangement includes a feed duct, at least two discharge ducts, a pump for producing a pressure in order to introduce the blood or blood plasma into the separating device, a measuring device provided with the discharge ducts, and a control arrangement connected to the measuring device. The separation arrangement also includes a respective arrangement changing the cross section of at least one of the two discharge ducts and connected to the control arrangement.

Abstract: A method and centrifugal separator apparatus for separating more dense particles from less dense particles contained in a slurry. The separator apparatus receives slurry into a rotor assembly which includes a bowl open upwardly and a surrounding hutch chamber. The bowl has a lower impermeable portion coupled to a drive shaft for rotating the rotor assembly, an upper impermeable portion connected to the lower portion, and a frusto-conical screen. The frusto-conical screen forms the inner wall of the hutch chamber and discharge outlets are provided in the periphery of the hutch chamber. An annular fluid inlet connected to the hutch chamber supplies elutriation liquid continuously to the interior of the hutch chamber, and a plurality of pulse blocks supply intermittent pulses of liquid to the hutch chamber. A dam is formed at the top of the screen. In operation, slurry is supplied to the lower portion of the bowl and forms a bed on the screen.