Abstract: In batchwise operation, the granulate grains (4) are filled into the dedusting container (9), which has no closure element at the lower granule outlet opening (25) and in which the whirling nozzles (31) for introducing compressed air are arranged in a lower cone (28), and—in particular depending on the filling level in the intermediate container (14) below—are filled into the dedusting container (9) either dropped downwards without counterflow (32), dedusting being effected by conveying out the introduced air, optionally due to the negative pressure at the upper air outlet opening, whereby only freely suspended dust particles are sucked off or already during the filling process a counterflow (32) is introduced, which partially does not allow the filled granulate grains (4) to fall through the granulate outlet opening (25) but holds them quasi floating at the level of the lower third or lower quarter of the dedusting container (9).

Abstract: The present invention relates to a device (1) for sorting powder particles into ranges of particles according to one or more of a density, size and/or shape of the particles, wherein the device (1) comprises a particle sorting chamber (2) with at least one sloping side wall (3), which side wall (3) slopes from a lower part (4) of the sorting chamber (2) towards an upper part (5) thereof, wherein the lower part (4) of the sorting chamber (2) is larger dimensioned than the upper part (5), wherein at the upper part (5) of the particle sorting chamber (2) an inlet (6) is provided for supplying a flow of the powder particles to be sorted to the sorting chamber (2), wherein a particle outlet (7) is provided in the upper part (5) of the sorting chamber (2) for conducting sorted particles from the sorting chamber (2) through a duct (8) to at least one particle sedimentation classifier (9), wherein in the lower part (4) of the sorting chamber (2) means (11) are provided for generating an upward rotating gas flow in th

Abstract: A method for separating a particulate stream of an evaporite mineral feedstock, the method comprising passing the stream to an air classifier configured to separate the particulate stream into a fine component and a coarse component.

Abstract: A cannabis oil extraction method includes performing grinding assisted extraction in the presence of solvent, co-solvent extraction with subcritical CO2 comprising, degassing the CO2 and separating the mixture by centrifugation.

Abstract: Mine dust in underground coal mines is potentially explosive and must be sampled and tested for sufficient inert content regularly. The present invention comprises a pneumatic mine dust sampling instrument equipped with a specially designed nozzle arrangement that delivers a controlled pulse of air which entrains the mine dust, similar to the entrainment process that happens during a mine explosion. The entrained mine dust can then be collected and tested for compliance with applicable federal standards.

Abstract: A particle separation device to remove particulate matter from an exterior air flow for use with an environmental control system includes a curved airflow path with an inner radius and an outer radius, the curved air flow path to receive the exterior air flow, a particle passage disposed along at least one of the inner radius and the outer radius to receive the particulate matter from the exterior air flow, a circumferential volute to receive the particulate matter from the particle passage, and a duct to transport the particulate matter from the circumferential volute to a downstream region.

Abstract: A system and a method for generating a respirable dry powder aerosol (15) from a liquid solution or liquid suspension at a respirable dry powder aerosol volume flow (91). A liquid aerosol generating nozzle (3) generates from the liquid solution or liquid suspension a liquid aerosol (13) that is diluted by dilution gas (4) and dried in a cylindrical evaporation chamber (6) to generate a dry powder aerosol (14) that is subsequently concentrated by a cylindrical single linear slit aerosol concentrator (9). The system and method may include heliox as a gas, specifically dilution gas (4), for enhancing both the drying process in the cylindrical evaporation chamber (6) and for enhancing the concentration efficiency, but also as a nozzle gas (2) for enhancing generating the liquid aerosol (13) from the liquid solution or liquid suspension.

Abstract: Systems and methods related to the recycling of spent or used catalytic converters are described. The system and method utilizes a crusher tube and grinder, and eliminates the alligator and guillotine shears used by industry. These improvements enhance the safety of the workers and removes occupational hazards such as dust and toxic contamination.

Abstract: An elongate apparatus is disclosed and comprises a material passage and one or more fluid passages. The material passage receives material therethrough. The one or more fluid passages are in fluid communication with the material passage. The material passage and the one or more fluid passages extend substantially parallel throughout the apparatus. A method comprises transferring material in a material passage and further comprises injecting a fluid into the material passage via one or more injection points located along a length of the material passage.

Abstract: The disclosure is directed at apparatus for portable PM2.5 monitoring including a PM2.5 sampling device including a housing portion for collecting and separating air-borne particulate matter, an inlet port, connected to the housing portion, for receiving the air-borne particulate matter, a core portion, located within the housing portion, the core portion assisting in generating a cyclonic airflow pattern to produce a uniflow system for separating particulate matter below a predetermined size from particulate matter above a predetermined size within the air-borne particulate matter, and an outlet port for receiving the particulate matter below the predetermined size; a particle counter, connected to the outlet port, for receiving the particulate matter smaller than the predetermined size and for determining a mass of the particulate matter below the predetermined size; and a processor for determining a PM2.5 level based on the mass of the particulate matter below the predetermined size.

Abstract: The invention employs a particle separation mechanism utilizing a generally circular passage using an air flow for the separation of particles. Ideally, within the passage is a conduit employing a hollow winding. Particles are introduced through an input end and drawn through the winding portion forcing, through centrifugal force, the particles to press against the exterior surface of the winding. Openings in the winding allow the particles to be flung from the winding into the circular passage either directly or via feed tubes.

Abstract: Inorganic fiber having the following composition ratio and comprising 40 wt % or less of shots each having a diameter of 45 ?m or more: [Composition ratio of inorganic fiber] SiO2 66 to 82 wt %; CaO 10 to 34 wt %; MgO 0 to 3 wt %; Al2O3 0 to 5 wt %; and the total of SiO2, CaO, MgO and Al2O3 is 98 wt % or more.

Abstract: Mobile dedusting and filling unit having a base frame (1) arranged on the chassis (3) and a working platform (2) fixed thereupon, on which an air dedusting device (10) is arranged, the cleaning air thereof is generated by a fan (21) arranged on the base frame (1), which fan is located upstream of a safety filter (37), wherein each mobile dedusting device, capable of completely autonomous function, is displaceable on the silo battery axis and functions together with a weighing and filling device (19) located downstream of the dedusting device and likewise integrated on the moveable frame (2).

Abstract: The invention involves a method of preparing an alkaline-earth metal oxide-containing polishing pad useful for polishing at least one of semiconductor, magnetic and optical substrates. The method includes introducing a feed stream of gas-filled polymeric microelements into a gas jet, the polymeric microelements having varied density, varied wall thickness and varied particle size. The method passes the polymeric microelements in the gas jet adjacent a Coanda block, the Coanda block having a curved wall for separating the polymeric microelements with Coanda effect, inertia and gas flow resistance. Then it separates various alkaline earth metal oxide constituents from the curved wall of the Coanda block to clean the polymeric microelements.

Abstract: A system and method for loading material from a converter bed, such as that in a converter of an acid plant, is provided. The system, may include a vacuum source; a dust collector connected to the vacuum source by a first vacuum hose; a cyclone operatively connected to the vacuum source through the dust collector, wherein the cyclone may be connected to the dust collector by a second vacuum hose; a drop-out hopper operatively attached to the cyclone by a valve, such as an air actuated valve, wherein the drop-out hopper includes a first feed hose; and one or more material storage containers operatively associated with the cyclone via a second feed hose. The method of loading material into a converter bed may include providing a system for loading the material in the converter bed; setting up the system; and loading the material into the converter bed.

Abstract: Particles are separated, concentrated, or mixed within a fluid by means of a fluid-containing cell having a longitudinal axis, a cross-sectional area generally perpendicular to the longitudinal axis, and at least one particle motivating force directionally interacting with at least one recurrent circulating fluid flow generally aligned with the longitudinal axis within the fluid containing cell.

Abstract: Processing waste materials to recover valuable metals, such as copper, from the materials. The disclosed systems and methods employ processes that further refine the waste materials to concentrate the metallic material after the waste materials are initially processed. Processes include employing air separation and screening. Processes also include employing a dynamic sensor and a vacuum pressure separator to separate metals from other materials.

Abstract: The invention relates to a method for removing shot from mineral fibres comprising providing a collected web of mineral fibres containing shot, subjecting the collected web of fibres to a disentanglement process, suspending the disentangled fibres in a primary air flow, thereby allowing separation of the fibres from the shot and collecting the fibres, wherein from 0% up to less than 1% by weight binder is present in the fibres collected from the primary air flow.

Abstract: Methods for increasing the amount of cenospheres in a fly ash sample are disclosed. The cenospheres are obtained in a dry state by using air as the “fluid” media for separation. In one version, the invention is a two step process, that is, screen by size followed by density separation such as in a fluidizing vertical column by density. In another version of the invention, the separation by density is followed by screening by size. Additional cycles can improve purity as defined by concentration of cenospheres.

Abstract: The invention relates to a method for removing solid matter, in particular impurities, by means of flotation from a fibrous material suspension (S), wherein the fibrous material suspension (S) is mixed with gas (L), and wherein in at least two flotation chambers (1, 2, 2?, 2?, 2??, 2??) flotation foam (3, 4) is formed that collects solid matter and removes it from the flotation chamber. The flotation foam (4) of at least one flotation chamber (1, 2, 2?, 2?, 2??, 2??) is at least partially conducted into at least one other flotation chamber (1), in particular in the flotation foam (3) formed therein. According to the method, the complexity can be reduced, even with high requirements regarding effect and yield.

Abstract: The present invention harvests and utilizes fluidized bed drying technology and waste heat streams augmented by other available heat sources to dry feedstock or fuel. This method is useful in many industries, including coal-fired power plants. Coal is dried using the present invention before it goes to coal pulverizers and on to the furnace/boiler arrangement to improve boiler efficiency and reduce emissions. This is all completed in a low-temperature, open-air system. Also included is an apparatus for segregating particulate by density and/or size including a fluidizing bed having a particulate receiving inlet for receiving particulate to be fluidized. This is useful for segregating contaminants like sulfur and mercury from the product stream.

Abstract: Processing waste materials to recover valuable metals, such as copper, from the materials. The disclosed systems and methods employ processes that further refine the waste materials to concentrate the metallic material after the waste materials are initially processed. Processes include employing air separation and screening. Processes also include employing a dynamic sensor and a vacuum pressure separator to separate metals from other materials.

Abstract: The present disclosure generally describes techniques for separating semiconducting carbon nanotubes from metallic carbon nanotubes in a carbon nanotube dispersion. The semiconducting carbon nanotubes and metallic carbon nanotubes may be provided and dispersed in a fluid. Once the semiconducting carbon nanotubes attach to the amine-coated magnetic particles, a magnetic field may be applied to the amine coated magnetic particles and attached semiconducting carbon nanotubes to attract and hold at least a portion of the semiconducting carbon nanotubes, so that the semiconducting carbon nanotubes may be separated from the fluid and/or metallic carbon nanotubes.

Abstract: Methods and apparatus for separating particulates from a fluid are provided. The apparatus can include a separation section having at least one wall, a first end, a second end, and an inner metal surface exposed to an internal volume of the separation section. The apparatus can also include a fluid discharge outlet in fluid communication with the internal volume at the first end. The apparatus can also include a particulate discharge outlet in fluid communication with the internal volume at the second end. The apparatus can also include an inlet in fluid communication with the internal volume. The inlet can be disposed intermediate the first end and the second end.

Abstract: A method for dividing a stream of solids includes discharging the stream of solids via a first downer. The stream of solids are fluidized at a bottom of the first downer by supplying a first conveying gas. By the first conveying gas, a part of the stream of solids are conveyed to a top of a first riser branching off from the first downer. A remaining part of the stream of solids are discharged via a second downer adjoining the first downer. The remaining stream of solids are fluidized at a bottom of the second downer by supplying a second conveying gas. By the second conveying gas, a part of the remaining part of the stream of solids are conveyed to a top of a second riser branching off from the second downer.

Abstract: The present application provides apparatuses and methods for the size-selective fractionation of ligand-capped nanoparticles that utilizes the tunable thermophysical properties of gas-expanded liquids. The nanoparticle size separation processes are based on the controlled reduction of the solvent strength of an organic phase nanoparticle dispersion through increases in concentration of the antisolvent gas, such as CO2, via pressurization. The method of nanomaterial separation contains preparing a vessel having a solvent and dispersed nanoparticles, pressurizing the chamber with a gaseous antisolvent, and causing a first amount of the nanoparticles to precipitate, transporting the solution to a second vessel, pressurizing the second vessel with the gaseous antisolvent and causing further nanoparticles to separate from the solution.

Abstract: Disclosed is a separation apparatus comprising a conveyor; and a material separator positioned above a conveyor, the conveyor being arranged to convey a mixture of materials to the material separator; the material separator comprising a suction duct comprising a sidewall which defines a passageway linking an inlet positioned adjacent the conveyor to an outlet positioned away from the conveyor; and an airflow generator arranged to blow air through a slit in the sidewall into the passageway at a position between the inlet and the outlet; wherein, in use, the airflow generator blows air through the slit in a direction which is towards the outlet for creating a pressure difference between the inlet and the outlet thereby generating an airflow which causes relatively low density materials to be lifted from the conveyor and sucked into the passageway.

Abstract: The present invention harvests and utilizes fluidized bed drying technology and waste heat streams augmented by other available heat sources to dry feedstock or fuel. This method is useful in many industries, including coal-fired power plants. Coal is dried using the present invention before it goes to coal pulverizers and on to the furnace/boiler arrangement to improve boiler efficiency and reduce emissions. This is all completed in a low-temperature, open-air system. Also included is an apparatus for segregating particulate by density and/or size including a fluidizing bed having a particulate receiving inlet for receiving particulate to be fluidized. This is useful for segregating contaminants like sulfur and mercury from the product stream.

Abstract: A classifying apparatus including: a rotor with a plurality of annularly disposed blades, which rotates; and a louver with a plurality of blades which are disposed at an outer circumferential portion of the rotor so as to supply from the outer circumferential portion a fluid for dispersing and classifying a powder material, wherein the powder material is supplied to a gap between the rotor and the louver and centrifugally classified into fine powder and coarse powder, and wherein at least one of the following relationships is satisfied: Relationship (1): ??50° Relationship (2): D2/D1?1.17 where a denotes an angle formed between imaginary lines connecting the center of the rotor with both ends of each blade of the louver, D1 denotes a diameter of the rotor, and D2 denotes an inner diameter of the louver.

Abstract: An apparatus suitable for separating particles and methods for using such apparatus are provided.

Abstract: Methods for increasing the amount of cenospheres in a fly ash sample are disclosed. The cenospheres are obtained in a dry state by using air as the “fluid” media for separation. In one version, the invention is a two step process, that is, screen by size followed by density separation such as in a fluidizing vertical column by density. In another version of the invention, the separation by density is followed by screening by size. Additional cycles can improve purity as defined by concentration of cenospheres.

Abstract: Methods and apparatus for separating particulates from a fluid are provided. The apparatus can include a separation section having at least one wall, a first end, a second end, and an inner metal surface exposed to an internal volume of the separation section. The apparatus can also include a fluid discharge outlet in fluid communication with the internal volume at the first end. The apparatus can also include a particulate discharge outlet in fluid communication with the internal volume at the second end. The apparatus can also include an inlet in fluid communication with the internal volume. The inlet can be disposed intermediate the first end and the second end.

Abstract: A dedusting apparatus has a product outlet offset laterally with respect to a vertical line passing through the product inlet. The dedusting apparatus has a primary wash deck structure with a flow of air passing therethrough into the flow of product. Product discharged off the lower end of the wash deck passes into a Venture zone fed by a flow of air passing through openings in the support leg for the wash deck. The offset dedusting apparatus allows installation of a dedusting apparatus onto a diagonally oriented product discharge conduit without requiring the reconfiguration of the angle of repose for the discharge conduit. The wash deck is formed with reverse slots having deflectors raised upwardly from the top surface of the wash deck to orient the slot to direct the air flow downwardly with the flow of product and to create turbulence in the product flow to facilitate cleaning.

Abstract: A particle separator stage in a particle separator includes an inflow passage of generally annular, axially facing form. In other embodiments, an asymmetric geometry is disclosed in which the major flow is taken from one side only. These features combine to allow compact, multi-stage separators to be produced. Also disclosed an arrangement in which the flow rate at a location within the separator stage is measured and used to control the flow rate there or elsewhere.

Abstract: An open configuration is provided for the housing of a particulate material dedusting apparatus through which particulate material passes to be cleaned by air passing through wash decks to separate dirt and debris from the particulate material for discharge from the housing. The front wall and side access doors of the housing are configured to be openable for full access to the front and rear chambers. The primary wash deck is detachably mounted within the housing for removal for cleaning purposes. The generally horizontal floors of the housing are formed with a slope to allow water to drain from the housing. The open configuration of the deduster housing facilitates cleaning, draining and drying of the housing to expedite changeover from one material to another. Furthermore, the open configuration allows access for improved welding to eliminate cracks and openings in joints which accumulate dirt and debris during operation.

Abstract: The apparatus according to the invention relates to a grinding arrangement (1) for producing flour from cereal, the latter in particular being bread wheat, durum wheat, maize or buck wheat. The grinding arrangement is characterized by at least one grinding mechanism (2) which is designed in particular as a stock-bed roller mill (16). The grinding mechanism has at least one feed opening (3) and at least one dispensing opening (4). The grinding arrangement comprises at least one separating stage (5) for separating ground products into finer ground product and coarser ground product, and a return arrangement (8) for returning at least some of the coarser ground product into the feed opening of the grinding mechanism.

Abstract: A separator of solids for separating first and second solids, the diameter and density of the first solids being larger than the diameter and density of the second solids. A first substantially vertical internal baffle (2) forms a passage in the low portion of the separator and forms two compartments (1A, 1B) on the passage of the fluidized solids. The fluidization of each compartment is independently controlled by two fluidization gas inlets (3A, 3B) in order to obtain the desired velocity field for separating the first and second solids in the first compartment (1A) and discharging the second solids through a vent (8), as well as for transferring the first solids into the second compartment (1B).

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: Processing waste materials to recover valuable metals, such as copper, from the materials. The disclosed systems and methods employ processes that further refine the waste materials to concentrate the metallic material after the waste materials are initially processed. Processes include employing air separation and screening. Processes also include employing a dynamic sensor and a vacuum pressure separator to separate metals from other materials. A central processing facility may process metal concentrate from multiple concentration facilities.

Abstract: A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite particles have a size less than 10 microns. In practice, the nepheline syenite grain size is less than about 5 microns and the distribution profile of the particulate system is generally 4-5 microns.

Abstract: Particles are separated, concentrated, or mixed within a fluid by means of a fluid-containing cell having a longitudinal axis, a cross-sectional area generally perpendicular to the longitudinal axis, and at least one particle motivating force directionally interacting with at least one recurrent circulating fluid flow generally aligned with the longitudinal axis within the fluid containing cell.

Abstract: Separating a mixture comprising at least two solid materials comprises transporting the mixture into a plenum, introducing air into the plenum, removing a heavier fraction of the solid materials from the plenum, removing air having a lighter fraction of the solid materials entrained therein from the plenum, removing the lighter fraction of the solid materials from the air that is removed from the plenum, filtering the remaining air, and re-circulating the air back to the plenum. Valves at the locations where material is introduced to and removed from the system can prevent air flow therethrough while allowing the materials to pass. The air can be introduced into the plenum at an angle with respect to the pathway in which the heavier fraction of the materials falls through the plenum, thereby avoiding damage to a screen that diffuses the air being introduced into the plenum.

Abstract: Particle classifier (2) for separating solid particles in a flow of gas and particles (1) into two fractions depending on size by means of gravitation force, air resistance force and applied centripetal force. A mixture of gas and particles is charged well dispersed to a classifier inlet zone (3) from which the mixture is brought into contact with a rotor (6) in a first separation zone (5) having the form of a free rotor chamber. Gas and fine particles are allowed to escape through an upper outlet (9) while the coarse fraction of the particles is forced to pass through a second separation zone and subsequently to leave through a lower outlet (15).

Abstract: A compact housing for a dedusting apparatus utilizes a magnetic flux field to disrupt the static charge attracting dust particles to product particles, which along with fluidization and counter current airflow principles that are proven to dislodge dust particles from the product, provides a highly efficient, compact deduster. The housing supports a double wash deck with product flow separated between the back-to-back primary wash decks. A deflector directing the flow of product onto the primary wash decks is provided with an extension that extends parallel to the wash deck to eliminated product bouncing off of the wash deck. The lower air outlets are eliminated, while the upper air outlets are positioned in extensions to the main housing above the product inlet opening. Air flow through the Venturi zones is enhanced by directing clean air through slots formed in the lower deck members into the Venturi zones.

Abstract: There is provided method for treating a gaseous phase comprising carbon filamentary structures having metal particles attached or linked thereto, for separating at least a portion of said carbon filamentary structures from said metal particles. The method comprises submitting said gaseous phase to a disturbance generated by an electric field, a magnetic field, ultrasounds, a turbulent gas stream, or combinations thereof, thereby reducing the amount of carbon filamentary structures having metal particles attached or linked thereto.

Abstract: A separation system includes an air separator that in one embodiment primarily receives Municipal Solid Waste (MSW) containing relatively light MSW recyclable materials such as paper, cardboard, plastic containers, and/or metal containers. The air separator blows the relatively light MSW recyclable materials up though a chamber and onto a first conveyer while the other relatively heavy MSW material drops down a chute onto a second conveyer. A separation screen receives the relatively light MSW recyclable materials from the air separator and separates the relatively flat paper and cardboard from the plastic and metal containers.

Abstract: Particulates called nanoparticles (principally having a diameter of 10 nm or less) are reliably and easily according to size with high throughput. An impactor includes a particulate size classifying chamber provided with an exhaust port for particulates, a nozzle ejecting to the inside of the particulate size classifying chamber a carrier gas containing particulates to be classified, and a trapping plate as particulate trapping unit provided in the particulate size classifying chamber and selectively trapping particulates ejected from the nozzle.

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: Disclosed is a separation apparatus comprising a conveyor; and a material separator positioned above a conveyor, the conveyor being arranged to convey a mixture of materials to the material separator; the material separator comprising a suction duct comprising a sidewall which defines a passageway linking an inlet positioned adjacent the conveyor to an outlet positioned away from the conveyor; and an airflow generator arranged to blow air through a slit in the sidewall into the passageway at a position between the inlet and the outlet; wherein, in use, the airflow generator blows air through the slit in a direction which is towards the outlet for creating a pressure difference between the inlet and the outlet thereby generating an airflow which causes relatively low density materials to be lifted from the conveyor and sucked into the passageway.

Abstract: A method for dividing a stream of solids includes discharging the stream of solids via a first downer. The stream of solids are fluidized at a bottom of the first downer by supplying a first conveying gas. By the first conveying gas, a part of the stream of solids are conveyed to a top of a first riser branching off from the first downer. A remaining part of the stream of solids are discharged via a second downer adjoining the first downer. The remaining stream of solids are fluidized at a bottom of the second downer by supplying a second conveying gas. By the second conveying gas, a part of the remaining part of the stream of solids are conveyed to a top of a second riser branching off from the second downer.