Entries |
Document | Title | Date |
20080223758 | Treatment of Plastic Waste - From one aspect, there is provided a method of treating a volume of plastics waste, the method including providing a volume of plastics waste comprising one of more plastics types, the or each plastics types having a melting point and a flash point and providing a heating zone having an entry zone through which the volume of plastics waste is feedable. The heating zone is brought to an operating temperature so as to avoid carbonisation of the plastics waste and the plastics waste is heated so that at least some of the plastics is melted to form a flowable plastics melt. The flowable plastics melt is caused to flow though the outlet under the influence of gravity into a cooling zone during which gas is allowed to escape to facilitate the flow. From another aspect there is provided an apparatus for treating a volume of plastics waste including a melt chamber defining a heating zone and heating means for heating the volume of plastics waste. The heating means includes a plurality of heating members which extend transversely to the flow of plastics waste and which are arranged to create a non-uniform thermal surface in the region of an inlet of the melt chamber. | 09-18-2008 |
20100116719 | METHOD AND DEVICE FOR SEPARATING OR CLASSIFYING MATERIAL TO BE FED - The device according to the invention for separating or classifying material to be fed into at least two different grain fractions comprises a screen device, which is formed by rotatable elements, particularly a roller table screen, wherein at least one finer grain fraction passes between the rotatable elements and means are provided for cooling the rotatable elements. | 05-13-2010 |
20100206778 | Sorting Mined Material - A method of sorting mined material for subsequent processing to recover valuable material, such as valuable metals, from the mined material is disclosed. The method includes a combination of selective breakage of mined material (for example, by using microwaves and/or high pressure grinding rolls), subsequent size separation, and then particle sorting of a coarse fraction of the separated material based on differential heating and thermal imaging. | 08-19-2010 |
20110000826 | METHOD AND DEVICE FOR EXTRACTING NON-MAGNETIC ORES - In a device and a method for extracting non-magnetic ores from a pulp comprising non-magnetic ore particles and having a solid fraction of at least 30 mass percent, the pulp flows continuously through a reactor in the direction of flow and magnetic or magnetizable magnet particles that form ore magnetic particle agglomerations with the non-magnetic ore particles are added to said pulp. The ore magnetic particle agglomerations are moved by a magnetic field into an accumulation range of the reactor, and are then discharged out of reactor range and separated into ore and magnetic particles. In a device and a method, the separated magnetic particles are treated, in particular hydrophobized, such that during a new interaction with non-magnetic ore particles, new ore magnetic particle agglomerations are formed. Accordingly, a high yield of ores can be obtained and the mine can be operated in an economical and environmentally friendly manner. | 01-06-2011 |
20110042274 | Method and Apparatus for the Separation of Solid Particles Having Different Densities - A method and apparatus for separating solid particles of different densities, using a magnetic process fluid. The solid particles are thoroughly mixed in a small partial flow of the process fluid. The small turbulent partial flow is added to a large laminar partial flow of the process fluid, after which the obtained mixture of the respective partial process fluids is conducted over, under, or through the middle of two magnet configurations, wherein the particles are separated into lighter particles at the top of the laminar process fluid and heavier particles at the bottom of the laminar process fluid, each of which are subsequently removed with the aid of a splitter. After that furthermore the particles of low density and the particles of high density are separated from the respective process streams, dried and stored. Finally, the process fluid from which the particles have been removed is returned to the original starting process stream. The method according to the invention is especially suitable, for example, for separating a mixture of polypropylene particles and polyethylene particles. | 02-24-2011 |
20110049017 | Method and Apparatus for Separating Parts, in Particular Seeds, Having Different Densities - 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. | 03-03-2011 |
20110073529 | SCRAP METAL RECOVERY SYSTEM AND METHOD - A system and method for recovering ferrous material from the boiler grit of burnt tires used to create electricity or heat at industrial locations. The system includes a magnetic separator for attracting the ferrous material out of the boiler grit, and a series of conveyors for transporting the ferrous and non-ferrous materials away from the system. | 03-31-2011 |
20110155649 | NANOPARTICLE SEPARATION USING COHERENT ANTI-STOKES RAMAN SCATTERING - The invention provides methods and systems for separating particles that exhibit different Raman characteristics. The method can include introducing nanoparticles, on which Raman-active molecules are adsorbed, into a photopolymerizable resin and exposing to excite Raman active vibrational modes of the molecules to generate Raman-shifted radiation suitable for polymerizing the resin such that the Raman-shifted radiation causes selective polymerization of a resin surrounding nanoparticles if the nanoparticles provide a Raman enhancement factor greater than a threshold. In addition, methods for electrically isolating nanoparticles, or selectively removing one type of nanoparticles from collections, are disclosed. These methods rely on generation of blue-shifted anti-Stokes photons to selectively expose portions of a photoresist covering the nanoparticles to those photons. Such exposure can cause a change in the exposed portions (e.g., polymerize or increase solubility to a developing agent), which can be employed to achieve isolation of the nanoparticles or their selective removal. | 06-30-2011 |
20120024760 | APPARATUS FOR DRYING PELLETS - An apparatus for drying pellets having a housing and a device for impressing motion. The device impresses directions of motion on the pellets and on a process fluid that differ locally from one another, so that the process fluid in which the pellets are originally located can be separated. The pellets by means of passage from a screen front to a screen rear in a dewatering region with at least one dewatering screen having dewatering screen openings that are smaller in size than the pellets. A classifying region with at least one classifying screen with classifying screen openings that are of such a size that the pellets of a desired size pass from a screen front through these classifying screen openings to a screen rear, wherein the classifying screen is arranged such that the pellets with the direction of motion impressed upon them pass through the classifying screen openings. | 02-02-2012 |
20120031814 | RECYCLING OF ARTIFICIAL TURF - Method and device for recovering synthetic turf installed on a surface, the synthetic turf comprising a backing in which are incorporated fibers and one or more infill particle layers, in which the synthetic turf is raised and continuously cut into strips, the strips cut in this manner are then lifted and progressively turned back to cause the infill particles to fall into the recovery tank, the strips then being relaid on the ground or wound up. | 02-09-2012 |
20120181221 | DETECTING A MINERAL WITHIN A MATERIAL - The invention exposes rock fragments of a material to electromagnetic radiation, such as microwave radiation, and detects the thermal response of the material of the rock fragments during or immediately after exposure to detect a mineral within the material. | 07-19-2012 |
20120228197 | INTEGRATED DRYING AND DRY SEPARATION APPARATUS FOR UPGRADING RAW COAL AND METHOD THEREOF - An integrated drying and dry-separating apparatus for upgrading raw coal includes a coal supply system, a hot air system, a drying system, a dedusting and exhausting system, and a dry-separating system. The coal supply system conveys raw coal to the hot air system and the drying system by a raw coal conveyer respectively. The hot air system is a heat source of the drying system. The drying system is used for drying and dewatering the raw coal. The dedusting and exhausting system is consisted of a deduster and an exhaust fan, and establishes a connection between the drying system and the dry-separating system. The dry-separating system includes a dry separator, a circulating fan, and a cyclone deduster, which is used for separating dried raw coal into fancy coal, middling coal and coal gangue. A method for dry-separating and drying raw coal using the apparatus is also provided. | 09-13-2012 |
20130015105 | PNEUMATIC VACUUM SEPARATION PLANT FOR BULK MATERIALS - A system for density-based particle separation includes a loading bin, a separating feeder, a mesh conveyor belt, a compressor for the mesh conveyor belt, transporting nozzles integrated with the separation bins and located over the mesh conveyor belt, discharge nozzles positioned under the mesh conveyor belt in the same plane with transporting nozzles and adjusted for separation of the primary material into particle products of specific density and an aspiration systems (cyclones), as well as fans for generation of ascending sucking air flows in the transporting nozzles and discharge flows in the discharge nozzles. | 01-17-2013 |
20130075307 | MAGNETIC SEPARATOR - There are provided devices, systems and processes to treat slurries that include magnetic and nonmagnetic particles suspended in water in such a fashion as to separate certain valuable elements and/or minerals from less valuable minerals or elements. A high intensity magnetic separator includes at least one large rotatable turntable that defines at least one circular channel therethrough in which a matrix material is positioned. The turntable is configured to rotate in a generally horizontal plane about a generally vertical virtual axis, causing the at least one circular channel to rotate through a plurality of intermittent magnetic and nonmagnetic zones generated by a plurality of permanent magnet members. A treatment slurry is directed into the channel or channels in one or more of the magnetic zones as the turntable rotates. A tailings fraction passes through the channel or channels in a generally downward direction in the magnetic zones and is collected in tailings launders. Magnetic particles are attracted to the matrix material in the magnetic zones and remain in the channel until it passes into an adjacent nonmagnetic zone, where the magnetic particles are washed form the channel into concentrate launders. | 03-28-2013 |
20130341249 | Identification of Plastic Material Composition - Identification of a material composition. The material composition is configured with a color additive that is embedded or otherwise not visible. The color additive identifies the specific material composition. A discrete section or sub-section of the material is deformed such that the embedded color additive is made visible in the optical spectrum, after which the discrete section or sub-section may be sorted for recycling. | 12-26-2013 |
20140027353 | POWDER-CLASSIFICATION METHOD - A powder-classification method includes a mixing step in which a powder and a liquid additive are mixed together, a drying step in which the powder mixed in the mixing step is dried, a loading step in which the powder dried in the drying step is loaded into a fluid classifier, a heating step in which a gas is heated, a supplying step in which the gas heated in the heating step is supplied to the fluid classifier, and a classifying step in which the powder is classified in the fluid classifier based on a grain size of the powder. | 01-30-2014 |
20140102946 | Lithium Extraction Composition and Method of Preparation Thereof - This invention relates to a particulate extraction material for the extraction of lithium from a geothermal brine or lithium containing solution. The particulate material includes an inorganic or polymer based substrate that includes a lithium aluminum intercalate layer applied to the exterior of the substrate, wherein the lithium aluminum intercalate layer is operable to capture lithium ions from solution. | 04-17-2014 |
20140144812 | MINERAL SLURRY DRYING METHOD AND SYSTEM - The present invention provides methods and systems for reducing moisture in mineral slurries, particularly mineral slurries containing minerals of small particle diameter, using a granular drying material. The invention also relates to novel mineral products and intermediates useful in connection with the process. The method and system reduced moisture by contacting the mineral slurry with the granular drying material. The granular drying material is selected to be readily separated from the dried minerals using a size separation technique such as a sieve screen. The granular drying material is the regenerated, preferably using a process involving heat exchange and cross-flow air. The granular drying material is preferably capable of regeneration and recycling in a continuous process with minimal attrition. | 05-29-2014 |
20140202931 | METHODS FOR TREATING BOTTOM ASH GENERATED FROM WASTE-TO-ENERGY FACILITIES TO REDUCE THE DEPENDENCE ON BONDING AGENTS SUCH AS LIME OR CONCRETE PRIOR TO DISPOSAL - A method to significantly reduce the need for treating bottom ash with a bonding agent, such as lime or concrete, as is typically done by Waste-to-Energy facilities within the United States of America. Furthermore it is a method that will greatly reduce the costs associated with freight, and disposal typically associated with WTE bottom ash by extracting excess water, metallic, and eliminating the need for supplemental additives such as lime or concrete. | 07-24-2014 |
20140339138 | Method And Device For Separating All Nonmagnetic Components From A Mixture Of Scrap Metal In Order To Obtain Pure Scrap Iron - A process and a device for dry separation of a conglomerate of metal scrap of non-magnetic particles from magnetic ones. Dry separation equipment for metal scrap which have a sequence of magnets placed in line, the poles of which are north-pole to south-pole are unable to meet this requirement. This insufficiency is due to the fact that the conglomerate of metal scrap is not sufficiently shook. This procedure does mean that at the end of transportation there is still non-magnetic material and other stuff fixed to the magnetic material. Intensive motion necessary is achieved by this invention by locating magnets adjacent to one another with equal poles, north-pole to north-pole and south-pole to south-pole and so on. | 11-20-2014 |
20150027932 | MOBILE SCREENING APPARATUS - A mobile screening apparatus includes a support chassis. The support chassis is configured for carrying at least one screening assembly having a top screen deck and at least one further screen deck below the top screen deck. At least at least one primary feed mechanism is configured for arrangement in communication with any one or more of the top and further screen decks to feed material to be screened onto said any one or more of the top and further screen decks. | 01-29-2015 |
20150129466 | PROCESSING OF WASTE INCINERATION ASHES - The invention relates to a method for processing waste incineration ashes (A), in particular domestic waste incineration ashes (HMVA), in which the ashes are classified into a plurality of fractions of different grain size distributions in a processing plant ( | 05-14-2015 |
20150136662 | METHOD AND SYSTEM FOR RECOVERING RECYCLABLE MATERIALS FROM AN ASR LANDFILL - Processing excavated ASR from an ASR landfill. The processing includes excavating the ASR and co-mingled material, sizing the excavated material, separating the excavated, sized material into a heavy and light fraction, and further processing the heavy fraction to recover ferrous and non-ferrous metals. | 05-21-2015 |
20150306633 | COMPACT SORTING DEVICE FOR SORTING A MATERIAL MIXTURE - A sorting device that can be transported by road or rail has rotary driven sorting rollers, supported on a frame, that together form a roller screen for sorting a material mixture into a fine grain size which falls through the roller screen and an oversize grain that is conveyed by the sorting rollers over a side edge of the roller screen. An oversize grain conveyor and collector is arranged below the sorting rollers. A channelling means extends along the side edge and is inclined in an operating position towards the oversize grain conveyor and collector, at least in sections, between an upper region, which faces the side edge at a distance, and a lower region which is near the oversize grain conveyor and collector, in order to channel oversize grain, which is conveyed over the side edge of the roller screen, downwards to the oversize grain conveyor and collector. | 10-29-2015 |
20150375267 | Sorting Systems of Automobile Shredder Residue to Enhance Recovery of Recyclable Materials - Systems and methods for increasing recyclable material recovery from automobile shredder residue ( | 12-31-2015 |
20160082488 | DEBRIS PROCESSING COMPOSITION AND DEBRIS PROCESSING METHOD - The present invention provides: a composition for treating debris in order to separate earth and sand from the debris that contains the earth and sand adhered thereto, the composition containing 0.1 to 10 mass parts of a polymer flocculant relative to 100 mass parts of gypsum, in which the gypsum has a BSA specific surface area of 15000 cm | 03-24-2016 |
20160101428 | PROCESS AND APPARATUS FOR REFINING SAND - 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. | 04-14-2016 |