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| Number | Title | Issue Date |
| 7367456 | Air jig for separation of minerals from coal An improved air jig apparatus and method is disclosed in which a dry magnetic separator is used to separate paramagnetic and ferromagnetic minerals from the dust component of coal cleaned with the air jig. The cleaned product of the dry magnetic separator is combine... | 05/06/2008 |
| 7329071 | Device for the pneumatic conveying of particulate and powdery bulk material Devices for the pneumatic conveying of particulate and powdery bulk goods to obtain high conveying speeds with low energy expenditure. The devices have a fluidized conveying pipe with fluidizing elements, in which pipe the fabric layers of the fluidizing elements ar... | 02/12/2008 |
| 7275644 | Apparatus and method of separating and concentrating organic and/or non-organic material 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. The fluidized bed also includes an opening for receiving a first fluidizing stream, an exit for... | 10/02/2007 |
| 7273015 | Method and apparatus for combustion of residual carbon in fly ash A system for combustion and removal of residual carbon within fly ash particles in which the fly ash particles are fed into an array of process units for combustion. The fly ash particles are subjected to heat and motive air such that as the fly ash particles pass t... | 09/25/2007 |
| 7144204 | Pneumatic conveyor device and method The invention relates to a device for the pneumatic conveyance of bulk material, including a conveying pipe which defines a conveying path for the bulk material and in portions has a fluidizing pipe segment and a propellant gas source which is connected to the conve... | 12/05/2006 |
| 7047894 | Method and apparatus for combustion of residual carbon in fly ash A system for combustion and removal of residual carbon within fly ash particles in which the fly ash particles are fed into an array of process units for combustion. The fly ash particles are subjected to heat and motive air such that as the fly ash particles pass t... | 05/23/2006 |
| 6971785 | Canister assembly for powder delivery system A powder paint canister assembly includes a canister body having a color changer manifold, a purge ring, and at least one venturi pump attached thereto. The canister body interior includes a fluidization plate and a fluidization distribution plate adjacent a prefera... | 12/06/2005 |
| 6688474 | Process for removing relatively coarse-grained solids from a stationary fluidized bed According to the invention, a fluidizing gas is introduced upwards into the fluidized bed (3) through a valve grid (2), said stationary fluidized bed (3) containing solids with different grain sizes. A supply pipe (10) is disposed in the area of the fluid... | 02/10/2004 |
| 6467631 | Air sifting apparatus An air sifting apparatus is provided for preparatory concentration of raw material including coal, and includes a material feed-in device, a material bed support device, an air jig plenum, and a discharge control device. The material bed support device re... | 10/22/2002 |
| 6425485 | Air-assisted density separator device and method A process is described for separating particles based on differences in mass after the selective attachment of air bubbles to reduce the density of one or more of the components of the feed. A novel feature of this process is aeration of a hindered-bed of... | 07/30/2002 |
| 6422392 | Ammonia removal from fly ash in an acoustically enhanced fluidized bed A process for removing ammonia from fly ash during processing on an inclined fluidized bed. The process begins by introducing a mixture of particulates having ammonia adsorbed therein into an inclined fluidized bed. Concurrently, a fluidizing gas is pre-h... | 07/23/2002 |
| 6216367 | Classifying and air-stratifying gold separator with inclined sequential chute cone array and size-classifying screen A sluice comprising a series of sequential, interconnected chutes, each inverting a stratified slurry, discharges the slurry in each chute over a mesh screen in a subsequent chute and eventually out of the sluice, with each incremental stage designed to t... | 04/17/2001 |
| 5996808 | Fly ash processing using inclined fluidized bed and sound wave agitation A process and device for separating different types of particulates from a mixture, which is especially suited for separating unburned carbon from raw fly ash. The process entails separating raw fly ash by size into a fine component and a coarse component... | 12/07/1999 |
| 5975309 | Fluidized-bed classifier A fluidized-bed classifier has a vessel defining a space divided into an upper fluidized-bed chamber and a lower gas chamber by a perforated dispersion plate having the shape of a funnel. Rising currents of a gas, such as air, are blown through the disper... | 11/02/1999 |
| 5669509 | Dry separation of fine powder from coarse contaminant in a vibrating fluid bed A method for separating coarse particles from TiO2 powder in a fine powder composition by the steps of: providing a system in which a source of the fine powder composition communicates with a minimally fluidizable bed of the fine powder composi... | 09/23/1997 |
| 5526938 | Vertical arrangement fluidized/non-fluidized bed classifier cooler A system for classifying and cooling particulate material produced by a fluid bed boiler comprises a vertical housing having an inlet for incoming particulate material and a first outlet for discharging exhaust and a second outlet for discharging solids. ... | 06/18/1996 |
| 5392922 | High capacity dry separation apparatus with air-heavy medium fluidized bed A high capacity dry separation apparatus with air-heavy medium fluidized bed having a separation chamber (3) with a fluidized bed above an air distributor (4), a scraper conveyer (2) in the separation chamber (3) having a double-scraper structure made up ... | 02/28/1995 |
| 5388704 | Relating to conveying and separation apparatus An air distribution plate for incorporation into a material conveyor or a material separator has a plurality of apertured zones alternately arranged along the length of the plate. The apertures in the first series of zones are inclined in the direction of... | 02/14/1995 |
| 5299694 | Apparatus and process for separating a material in fluidized bed form and the detection of clogging Apparatus and method for handling pulverulant material in fluidized bed form. The material is fed into the upper part of a two-part container, whose lower part consists of two independent volumes separated from the upper part by a porous wall comprising t... | 04/05/1994 |
| 5197398 | Separation of pyrite from coal in a fluidized bed Processes and arrangements that provide for the separation of pyrite from coal in a fluidized bed. The processes provide for more efficient and complete stratification of the bed materials in a vertical direction, so that the very top layer of the fluidiz... | 03/30/1993 |
| 5087351 | Fluidized bed peanut sorter A modified fluidized bed separates materials differing in weight by as little as one percent. A fluidized bed is formed by directing air through vanes on an underside of a screen. Products, such as peanuts, delivered to a central portion of the screen are... | 02/11/1992 |
| 5071541 | Method and apparatus for sorting a mixture of particles A method and apparatus for sorting a mixture of particles containing a first group of particles of substantially uniform size and density and a second group of particles of substantially the same size as the particles of the first group and of different d... | 12/10/1991 |
| 5048693 | Method and apparatus for sorting articles with small density differences utilizing a flotation stream A method and apparatus for sorting articles with small density differences utilizing a flotation stream. A separator is provided in which a flotation stream continuously flows through a trough and is used to effect the separation of a mixture of articles ... | 09/17/1991 |
| 4946044 | Aeration separator An aeration separator for separating lighter and heavier materials in a separation chamber in which the material flows through a downwardly sloping passage in the lower region of the separation chamber toward a lower discharge while air flows upwardly thr... | 08/07/1990 |
| 4913807 | Particle separator Method and apparatus (10) are provided for separating and classifying particles (48,50,56) by dispersing the particles within a fluid (52) that is upwardly flowing within a cone-shaped pipe (12) that has its large end (20) above its small end (18). Partic... | 04/03/1990 |
| 4865722 | Method and apparatus for separation using fluidized bed A separator suitable for processing agriculture products in a fluidized bed flowing through an inclined trough under the influence of gravity. The fluidization medium is recirculated from the output end of the trough back to the input end thereof using a ... | 09/12/1989 |
| 4861464 | Method and apparatus for separation using fluidized bed A gas is forced upwardly through a fluidization medium, such as sand, producing a fluidized bed which flows under the influence of gravity through an inclined trough. The separation of the side walls of the trough decreases in the direction of flow of the... | 08/29/1989 |
| 4790487 | Continuos granulator A continuous granulator includes a granulator body for continuously processing powdered materials into granules, and a screw conveyor for discharging the produced granules from the granulator body, the screw conveyor including a pneumatic classifier for s... | 12/13/1988 |
| 4755284 | Elutriator An elutriator (1) for separating different grades of leaf vegetable material comprises an elutriation zone (17) disposed above a flow distributor, and gaseous supply means (13) for supplying a gaseous medium to the elutriation zone (17) through the flow d... | 07/05/1988 |
| 4646759 | Vibrating trough tobacco separator and classifier A method and apparatus are disclosed for the separation and classification of tobacco into two fractions, e.g., into heavies and lights. A stream of fluid is employed to produce a stratified bed of the tobacco, preferably in cooperation with vibration of ... | 03/03/1987 |
| 4589981 | Fluidized bed classifier Fluidized bed systems for segregating cleaning or classifying particulate matter of differing physical properties such as particle density or size. Multiple stage beds preferably operate in a partially fluidized state and the classification structure prov... | 05/20/1986 |
| 4565326 | Method and apparatus for removing veneer from reworked medicine tablets The invention is a method and apparatus for removing veneer coating shards from granular, medicinal formulations which are being reworked. The formulation is ground up, sifted to remove the smaller pieces which do not contain veneer shards, and then place... | 01/21/1986 |
| 4546552 | Fluid induced transverse flow magnetically stabilized fluidized bed Solids comprising a magnetically stabilized fluidized bed are transported in a direction transverse to the flow of the fluidizing fluid exiting the bed by contacting at least a portion of said solids with fluidizing fluid which enters the bed with a veloc... | 10/15/1985 |
| 4521303 | Solids separation in a self-circulating magnetically stabilized fluidized bed A mixture comprising non-magnetic solids is separated according to the density difference of its components by contact with a separating medium comprised of a fluidized bed of magnetizable particles which is stabilized by a magnetic means. The separating ... | 06/04/1985 |
| 4431530 | Apparatus for extracting foreign bodies and heavy parts from fiber material An apparatus for separating a desired, relatively light fibrous fraction from admixture with foreign bodies, such as sheaths, metal parts, plastic parts and the like and having parts, such as stems, rind remnants, leaf parts and the like. The apparatus co... | 02/14/1984 |
| 4330400 | Apparatus for separating dust, dirt and the like from particulate material An apparatus for separating dust, dirt and the like from particulate material utilizes a flow of carrier fluid which passes through the particulate material on a grid or screen. The heavier particulate material falls through the grid while the lighter mat... | 05/18/1982 |
| 4326635 | Apparatus for refining ore This disclosure relates to a refining apparatus which incorporates an updraft passing through a surface, which surface has permeable and impermeable regions, in combination with a vibrator, to serve as a device to fluidly suspend a mixture of materials ab... | 04/27/1982 |
| 4322287 | Fluidized bed separator A fluidized bed apparatus for separating and sorting solid bodies of different densities. It comprises: a container for the fluidized bed; means for maintaining the bed in a state of fluidization under constant pneumatic pressure; a conveyor whose inner face i... | 03/30/1982 |
| 4274947 | Electrostatic method and apparatus for sorting fluidized particulate material A multi-constituent mixture of particles is fluidized within an elongated container with a gas permeable base. Opposing horizontal motions are induced in the upper and lower strata of the fluidized material by means of moving baffles mounted on endless ch... | 06/23/1981 |
| 4229289 | Fluidized bed apparatus and process An apparatus and process for conduct of fluidized bed reactions having an improved grate wherein at least one substantially continuous open slot sufficiently wide for passage of heavy solid particles is provided for preferential removal of heavy particles... | 10/21/1980 |
