With Baffle Or Deflector To Adjust Material Flow Patents (Class 34/588)
  • Patent number: 10500563
    Abstract: A system and method for cleaning, conditioning, and/or rejuvenating carbon-based sorbents is disclosed where a chemical cleaning process is used to separate contaminants from the sorbent. The contaminants can be disposed of or recycled for industrial uses. The cleaned and/or rejuvenated carbon-based sorbent is recycled back into a reverse venturi shaped fluidized bed apparatus for later use. Spent carbon-based sorbent can be routed for appropriate disposal. The carbon-based sorbents include, but are not limited to, activated carbon sorbent and biochar sorbent. Optionally, the sorbents can be processed through the system prior to exposure to contaminated emissions to enhance and increase the porosity of the outer surface of the sorbents.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: December 10, 2019
    Assignee: Chemical and Metal Technologies LLC
    Inventors: Hal Stuhler, Lori Stuhler, Van T. Walworth, Scott Drummond
  • Patent number: 10500539
    Abstract: An emissions control system including a fluidized bed apparatus containing a reactive sorbent material is disclosed for gaseous and non-gaseous contaminated emissions. The reactive sorbent material may be CZTS, CZTS-Alloy, or a carbon-based sorbent material. The fluidized bed apparatus is configured with one or more closed loop sorbent recycling subsystems. The sorbent recycling subsystems include the capability to separate sorbents from each other, separate contaminates from sorbents for disposal and/or recycling, clean and/or rejuvenate sorbents for return to the fluidized bed apparatus, dispose of spent and exhausted sorbents, and replace the spent and exhausted sorbents with new sorbent to maintain consistent sorbent function in the fluidized bed apparatus. Monitoring sensors provide information useful in a method for establishing and maintaining consistent process parameter controls.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: December 10, 2019
    Assignee: Chemical and Metal Technologies LLC
    Inventors: Hal Stuhler, Lori Stuhler, Van T. Walworth, Scott Drummond
  • Patent number: 10500569
    Abstract: An emissions control system including a fluidized bed apparatus containing a reactive sorbent material is disclosed for gaseous and non-gaseous contaminated emissions. The reactive sorbent material may be CZTS, CZTS-Alloy, or a CZTS-Mixture sorbent material. The fluidized bed apparatus is configured with one or more closed loop sorbent recycling subsystems. The sorbent recycling subsystems include the capability to separate sorbents from each other, separate contaminates from sorbents for disposal and/or recycling, clean and/or rejuvenate sorbents for return to the fluidized bed apparatus, dispose of spent and exhausted sorbents, and replace the spent and exhausted sorbents with new sorbent to maintain consistent sorbent function in the fluidized bed apparatus. Monitoring sensors provide information useful in a method for establishing and maintaining consistent process parameter controls.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: December 10, 2019
    Assignee: Chemical and Metal Technologies LLC
    Inventors: Hal Stuhler, Lori Stuhler, Van T. Walworth, Scott Drummond
  • Patent number: 10246643
    Abstract: A process and apparatus for producing hydrocarbon oil from the thermal decomposition of waste plastics in a continuous process which comprises melting of a waste plastic feedstock into an auger assisted melt reactor to remove chlorine and organics contained in the waste plastic, and transferring the melted waste plastic into an heated screw pyrolysis reactor which includes a transitional metal heat transfer medium. The hydrocarbon gas from the pyrolysis reactor is fed into a vessel containing metal trays for a second decomposition which is connected with an alkali treatment 2-step process gas reactor to remove acidic gases, and any inorganic solids. The hydrocarbon gases are separated by three separate condensers. The hydrocarbon fraction of the first condenser is recycled back into the pyrolysis reaction for further thermal treatment, and the hydrocarbon fractions are collected in the remaining condensers.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 2, 2019
    Assignee: Virens Energy, LLC.
    Inventors: Stephen B. Gephart, John C. Hill
  • Patent number: 9993779
    Abstract: An improved air handing system for a particulate metering system is provided. The system includes a flow path with an inlet in communication with an intake and an outlet in communication with one or more discharge points. A blower can be in communication with the flow path at the intake and provide an air flow to the flow path. The system can include a plenum within the flow path and in fluid communication with the blower. A plurality of ports can be disposed on the plenum and within the flow path. Each of the ports can be in communication with a discharge point. The system can further include air flow directing members within the flow path. Each of the air flow directing members can be in communication with a separate one of the ports and one of the discharge points.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: June 12, 2018
    Assignee: MONTAG INVESTMENTS, LLC
    Inventors: Roger A. Montag, Isaac Mogler, Jason Fehr
  • Patent number: 9889391
    Abstract: A degasser includes a vessel having a series of chambers. Liquid containing a gas is directed through the vessel and the chambers therein. A stripping gas is injected into the vessel and moves through the vessel in a counter-current direction relative to the flow of liquid. More particularly, the stripping gas moves from one chamber to another chamber in an upstream direction (relative to the flow of the liquid) and is mixed with the liquid in each chamber, causing gas in the liquid to be displaced. Displaced gas is vented from the vessel at a location near where the liquid enters the vessel.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: February 13, 2018
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Aaron Poon, David Salyer, Oscar Velastegui
  • Patent number: 8844162
    Abstract: A device for removing fluids from particulate materials, including a container having a circular process chamber with a cylindrical external contour, an input device for inputting the materials into the process chamber, a discharge device for discharging the particulate materials freed of the fluid from the process chamber, a feed device for feeding a fluidizing agent from below into the process chamber, and at least one conditioning device for conditioning the fluidization agent in the direction of flow prior to the feed device.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 30, 2014
    Assignee: BMA Braunschweigische Maschinenbauanstalt AG
    Inventors: Lothar Krell, Gerald Caspers
  • Patent number: 8726536
    Abstract: An apparatus for drying particles in a fluidized state includes a particle input segment into which wet particles are input, a drying segment having a multi-perforated plate dividing an inner space of the drying segment into an upper section and a lower section, a plurality of upper partition plates partitioning the upper section and positioned above the multi-perforated plate, a plurality of lower partition plates in the lower section respectively corresponding to the plurality of upper partition plates, a plurality of pairs of channel plates in the lower section that pass through the multi-perforated plate such that each pair of the plurality of pairs of channel plates are respectively arranged on opposite sides of respective ones of the plurality of upper partition plates and on opposite sides of respective ones of the plurality of lower partition plates; and a heated-air flow supply segment for supplying hot gas to the drying segment.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: May 20, 2014
    Assignee: Korea Institute of Energy Research
    Inventors: Do Won Shun, Chang Keun Yi, Gyong Tae Jin, Sung Ho Cho, Jae Hyeon Park, Dal Hee Bae, Ho Jung Ryu, Young Cheol Park, Seung Yong Lee, Si Hyun Lee
  • Patent number: 8689463
    Abstract: A method and apparatus for removing lint from air that is discharged from a clothes dryer uses a lint filtration housing mounted on the frame of the clothes dryer, the filtration housing having an interior that contains a filter for removing lint from the dryer exhaust air flow stream. The housing provides an influent fitting for transmitting heating exhaust air from the drying chamber to the housing interior. An ambient air supply enables ambient air to be added to the filtration housing interior. One or more vanes is provided that create an annular vortex within the filtration housing interior. The flow of the annular vortex within the filtration housing interior can be between about 500 and 3,000 cubic feet per second. A flow line transmits pre-heated air from the filtration housing interior to the dryer interior.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: April 8, 2014
    Assignee: Pellerin Milnor Corporation
    Inventor: Russell Poy
  • Publication number: 20120266489
    Abstract: An improved desolventizer-toaster (DT) unit is used for removing traces of a hydrocarbon solvent from a mass of vegetable particles of oil. A conventional DT unit has within a housing, a set of solvent removal trays and a main ejector transporting solvent vapor and steam from below the tray set to between a pair of the trays in the set. The improved DT unit has a further scavenger tray between an inlet of the main ejector and the housing floor. A scavenger ejector transports solvent vapor from between the scavenger tray and the housing floor before it exits from the unit, to the space between the tray set and the scavenger tray.
    Type: Application
    Filed: April 25, 2012
    Publication date: October 25, 2012
    Inventors: George E. Anderson, Benjamin W. Floan
  • Patent number: 8245963
    Abstract: A grain size and/or pulverulent-matter drying apparatus for the treatment of suspended mineral particles, at least 90% in weight of which have a size less than 60 mm, primarily includes a substantially vertical gas pipe with an ascending flow provided with a gas inlet, a lower opening and an upper opening between which a supply opening is also provided for insertion of matter. A portion of the matter, or so-called “fines”, can escape with the gas through the upper opening due to the bearing capacity of the ascending flow, while another coarser portion of the matter is not carried away by the gas and falls into the lower opening. The apparatus also has a device for creating turbulence, which favors the separation of the different grain sizes and the suspension of matter, provided at the internal wall of the pipe and located between the lower opening and the supply opening.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: August 21, 2012
    Assignee: FIVES FCB Societe Anonyme
    Inventors: Sébastien Devroe, Alain Cordonnier, Pascal Marechal
  • Patent number: 8166670
    Abstract: A method and apparatus for removing lint from air that is discharged from a clothes dryer uses a lint filtration housing mounted on the frame of the clothes dryer, the filtration housing having an interior that contains a filter for removing lint from the dryer exhaust air flow stream. The housing provides an influent fitting for transmitting heating exhaust air from the drying chamber to the housing interior. An ambient air supply enables ambient air to be added to the filtration housing interior. One or more vanes is provided that create an annular vortex within the filtration housing interior. The flow of the annular vortex within the filtration housing interior can be between about 500 and 3,000 cubic feet per second. A flow line transmits pre-heated air from the filtration housing interior to the dryer interior.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 1, 2012
    Assignee: Pellerin Milnor Corporation
    Inventor: Russell H. Poy
  • Patent number: 7993595
    Abstract: An apparatus for introducing fluids into a solids flow of a spouted bed apparatus is provided. The apparatus includes a spray nozzle which opens into a reaction space of the spouted bed apparatus. A lower region of the reaction space is provided with a rectangular cross section for the spouted bed apparatus and is limited in an axial direction by at least one inclined stream return flow wall and an oppositely inclined stream inlet wall with the formation of an axial gap through the reaction space for supplying inlet air. At least one nozzle is also provided for introducing fluid above the gap opens into the reaction space.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: August 9, 2011
    Assignee: Glatt Ingenieurtechnik GmbH
    Inventors: Michael Jacob, Karlheinz Rumpler, Mike Waskow
  • Publication number: 20080148595
    Abstract: A method for processing a substrate using a proximity head is disclosed. The method is initiated by, providing a head with a head surface positioned proximate to a surface of the substrate. The head has a width and a length, and the head has a plurality of ports that are configured in rows along the length of the head. The plurality of rows can extend over a width of the head, and there is a first group of ports configured to dispense a first fluid. The first fluid is dispensed to the surface of the substrate forming a meniscus between the surface of the substrate and the surface of the head. The method also includes delivering gaseous carbon dioxide from a second group of ports of the head to an interface between the meniscus and the substrate. The carbon dioxide assists in promoting a reduced surface tension on the meniscus relative to surface of the substrate.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Applicant: Lam Research Corporation
    Inventors: John M. de Larios, Paul A. Kittle, Michael Ravkin, Mikhail Korolik, Erik Freer, Katrina Mikhaylich, Fritz C. Redeker
  • Patent number: 7188436
    Abstract: A continuous gravity flow apparatus for heating and/or drying of particulate material is vertically disposed and is provided with an inlet at the top and an outlet at the bottom. The apparatus includes a flow passage for the particulate material which is defined between an outer housing and an inner housing. Each of the outer and inner housing defines perforated wall sections allowing for the flow of hot gas through the wall of one housing, into contact with the particulate material, and then out through the wall of the other housing. Manifolds are associated with the outer and inner housings to provide for uniform flow of the gas through the material. The perforated wall sections are positioned and designed to enhance particle-to-particle movement of the material to thereby avoid particle sticking and bridging problems.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: March 13, 2007
    Assignee: Bepex International, LLC
    Inventors: Charles L. Stock, Peder K. Langsetmo, Gregory J. Kimball, David L. Phillips
  • Patent number: 7168183
    Abstract: An apparatus for treating particulate material has an elongated, tunnel-like process chamber, along which the material to be treated can be moved from an inlet to an outlet. A bottom of said process chamber is designed in that two flows of introduced process air are oriented transversely with respect to the longitudinal direction and impinge on each other along a breaking-up zone. Arranged in the bottom are air guide elements which can be adjusted by an adjustment device in that the process air can have superimposed on it a variable movement component in the longitudinal direction.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: January 30, 2007
    Inventor: Herbert Hüttlin
  • Patent number: 7070393
    Abstract: The invention relates to a method for regulating a compressor installation with at least one compressor element (6) driven by a motor and, in the pressure conduit (11) thereof, a dryer (2) of the type comprising a pressure vessel (24) with a drying zone (3) and a regeneration zone (4), and a rotor (25) continuously rotated in this pressure vessel (24) by a motor (33), which rotor is filled with a regenerable drying agent. A portion of the compressed air is supplied, by means of a branch (15), to the regeneration zone (4) and, after cooling down and separation of the condensed water, is fed back to the pressure conduit (11). The speed of both motors (9, 33) is regulated by a regulation device (13) in function of the pressure in the pressure conduit (11).
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: July 4, 2006
    Assignee: Atlas Copco Airpower, naamloze vennootschap
    Inventor: Danny Etienne Andrée Vertriest
  • Patent number: 6935051
    Abstract: A continuous gravity flow apparatus for heating and/or drying of particulate material is vertically disposed and is provided with an inlet at the top and an outlet at the bottom. The apparatus includes a flow passage for the particulate material which is defined between an outer housing and an inner housing. Each of the outer and inner housing defines perforated wall sections allowing for the flow of hot gas through the wall of one housing, into contact with the particulate material, and then out through the wall of the other housing. Manifolds are associated with the outer and inner housings to provide for uniform flow of the gas through the material. The perforated wall sections are positioned and designed to enhance particle-to-particle movement of the material to thereby avoid particle sticking and bridging problems.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: August 30, 2005
    Inventors: Charles L. Stock, Peder K. Langsetmo, Gregory J. Kimball, David L. Phillips
  • Patent number: 6898869
    Abstract: A device for treating particulate material has a process chamber. A bottom of the process chamber is composed of baffle plates which overlap one another and between which slots are formed. It is proposed to design the baffle plates as annular plates, so that circular slots are formed, and to place the annular plates in such a way that a radially outer, first flow, directed from outside to inside, of process air passing through, and a radially inner, second flow, directed from inside to outside, of process air passing through are formed, the two opposed flows meeting one another along a circular breaking-up zone and being deflected into a flow directed vertically upwards.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: May 31, 2005
    Inventor: Herbert Hüttlin
  • Patent number: 6895691
    Abstract: The present invention provides a seed dryer having an air kettle. The air kettle defines a seedbed. A plenum and diffuser direct air from an air supply to the bottom of the seedbed without the need for screens. The air from the air supply is provided with sufficient pressure that the seedbed is fluidized which decreases the need for mechanical agitation of the seeds. Dry seeds tend to accumulate on a surface of the seedbed. Removal of the accumulated seeds is facilitated by at least one perforation in and deflector cap that direct a portion of the air supply to a top surface of the seedbed.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: May 24, 2005
    Assignee: Agra Air, Inc.
    Inventors: Jerry Laramore, John Clark
  • Patent number: 6889450
    Abstract: The present invention provides a seed dryer having an air kettle. The air kettle defines a seedbed. A plenum and diffuser direct air from an air supply to the bottom of the seedbed without the need for screens. The air from the air supply is provided with sufficient pressure that the seedbed is fluidized which decreases the need for mechanical agitation of the seeds.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: May 10, 2005
    Assignee: Agra Air, Inc.
    Inventors: Jerry Laramore, John Clark
  • Publication number: 20040237336
    Abstract: The present invention provides a seed dryer having an air kettle. The air kettle defines a seedbed. A plenum and diffuser direct air from an air supply to the bottom of the seedbed without the need for screens. The air from the air supply is provided with sufficient pressure that the seedbed is fluidized which decreases the need for mechanical agitation of the seeds.
    Type: Application
    Filed: May 29, 2003
    Publication date: December 2, 2004
    Inventors: Jerry Laramore, John Clark
  • Publication number: 20040237337
    Abstract: The present invention provides a seed dryer having an air kettle. The air kettle defines a seedbed. A plenum and diffuser direct air from an air supply to the bottom of the seedbed without the need for screens. The air from the air supply is provided with sufficient pressure that the seedbed is fluidized which decreases the need for mechanical agitation of the seeds. Dry seeds tend to accumulate on a surface of the seedbed. Removal of the accumulated seeds is facilitated by at least one perforation in and deflector cap that direct a portion of the air supply to a top surface of the seedbed.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 2, 2004
    Inventors: Jerry Laramore, John Clark
  • Patent number: 6823605
    Abstract: In order to create a solid-bow centrifuge for mechanical drainage and thermal drying of sludges, in which the possibility of clumping or of bake-on of the finely dispersed thick matter spun off from the thick matter outlet openings is minimized or prevented, according to the invention it is proposed to provide in the flight path of the spun off thick matter, a baffle cone surrounding the thick matter outlet openings at a distance and which rotates at a high circumferential velocity, that is, preferably it rotates together with the basket shell, and whose inner, ring-shaped, rotating conical surface accelerates the arriving thick matter and prevents solids bake-on.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: November 30, 2004
    Assignee: Baker Hughes Incorporated
    Inventors: Martin Denuell, Eberhard Koppe, Wallace Leung
  • Patent number: 6723291
    Abstract: A novel flow deflector employed in a fluidized bed reactor for olefin polymerization is disclosed, which is installed on the entry conduit of the reactor, comprising an annular plate and a cone plate and providing at least three paths for the recycle stream to enter the mixing chamber, thereby permitting all the liquid and/or solid material to achieve a more complete and uniform mixing.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: April 20, 2004
    Assignees: China Petrochemical Corporation, Tianjin United Chemical Corporation
    Inventor: Wenqing Wu
  • Publication number: 20030159311
    Abstract: A grain drier comprises two main bodies and a rocking device for actuating the main bodies to rock. The main bodies are mounted on a stand and are provided in the hollow interior with a plurality of bellows-like devices, with each having a hot air admitting port and a plurality of air holes for circulating the hot air stream so as to effect the process of drying the grain deposited on the outer side surface of the slantingly-arranged bellows-like device. The rocking device is fastened with the stand.
    Type: Application
    Filed: February 27, 2002
    Publication date: August 28, 2003
    Inventor: Chun-Chien Yu
  • Patent number: 6564472
    Abstract: The invention provides a process for bringing particulate material into contact with a moving fluid in an annular processing zone to create processed material. The zone has a base and the process includes generating a circumferentially directed flow of gas in the zone to develop a circumferentially circulating turbulent bed of particulate material within the processing zone. Particulate material is supplied to the processing zone so that the particulate material is circulated in the processing zone to provide a predictable particle flow path both circumferential of the processing zone and helically of the zone.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: May 20, 2003
    Assignee: Mortimer Technology Holdings Limited
    Inventor: Christopher E. Dodson
  • Patent number: 6457255
    Abstract: Conditioning apparatus for handling particulate material comprises a central frame and a plurality of spaced, annular troughs mounted to the central frame to support the particulate material. The troughs are arranged in a stacked configuration having successive pairs of upper and lower troughs with an uppermost trough for receiving the particulate material and a lowermost trough for discharging particulate material. Hydraulic cylinders or other suitable means are used to impart vibratory movement to the plurality of troughs to fluidize and advance the particulate material in a first direction on each of the plurality of troughs. A passage is formed through each trough for particulate material to fall from the upper trough of a pair to the lower trough.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: October 1, 2002
    Inventor: Allan M. Carlyle
  • Patent number: 6367165
    Abstract: A device for treating particulate product has a process chamber for receiving and treating the product. A bottom of the process chamber is constructed from substantially plane baffle plates overlapping each other with slots formed between said overlapping plates. Process air can be introduced into the process chamber via said slots between said plates with a substantially horizontal component of motion. Said baffle plates and the resulting slots are arranged in such a way that two opposite flows of incoming process air are produced. Said two opposite flows are directed along a substantially horizontal path and meet along a breaking-up zone and are then deflected to form an upwardly directed, substantially vertical flow.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: April 9, 2002
    Inventor: Herbert Hüttlin
  • Patent number: 6312521
    Abstract: A process used to coat particles in an upward flowing fluidized bed dryer includes an insert disposal within the dryer. The insert includes a vertically adjustable cylindrical partition and a vertically adjustable spray nozzle wherein the cylindrical partition has a diameter-to-length ratio greater than 1. The particles are fluidized using a gas and are processed through a coating zone containing the cylindrical partition and become coated with the liquid spray. The particles exit the coating zone and enter the reconditioning zone wherein the liquid is allowed to dry onto the particles. The particles fall into the fluidized bed and are reprocessed through the coating zone by a draft effect created by the atomizing gas in the spray nozzle. The insert provides liquid coating flexibility allowing for the coating of liquid fat onto the particles. Additionally, since less fluidizing gas is required and not all of the particle bed needs to be fluidized, the coating process is more efficient and gentle.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: November 6, 2001
    Assignee: Primera Foods Corporation
    Inventors: Laurence Lee, Frank Wyatt, Heather Ganske, Eugene H. Sander
  • Patent number: 6298579
    Abstract: A fluidized-bed drying and classifying apparatus is provided with a main body (10) in which a fluidized bed is formed to dry a granular material and to classify the same into fine particles and coarse particles. A perforated gas-distributing plate (12) is disposed in a lower part of a region in which a fluidized bed (14) is formed in the main body (10), a wind box having the shape of a hopper is disposed below the perforated gas-distributing plate. A dropped material discharge device (29) is connected to the lower end of the hopper-shaped wind box (16) to discharge the material dropped into the wind box (16). A gas supply system (110) is connected to the wind box (16) to supply a fluidizing gas that serves as a drying hot gas and a classifying gas into the wind box. A material supply opening portion (20) is mounted to the main body (10) to feed the granular material. A discharge chute (24) is connected to the main body (10) to discharge dried coarse particles.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: October 9, 2001
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Noboru Ichitani, Isao Hayashi, Mikio Murao
  • Patent number: 6266895
    Abstract: An apparatus for the drying of particulate material in superheated steam in a closed vessel (1) has a number of upwardly open, elongated and substantially vertical processing cells (2) which are placed around a central part with a heat exchanger (3). The last of these processing cells (2) has a closed bottom and is the discharge cell (4), while the remainder (2) have bottoms (5) through which steam can permeate. The processing cells (2), which lie at the side of one another, stand in mutual connection through openings (11) at the lowermost ends of the cells, so that the particulate material which is dried by the superheated steam which is blown up from the heat exchanger (3) through the steam-permeable bottoms (5) can pass from one processing cell (2) to the next through the openings (11). The discharge cell (4) and/or the last of the processing cells (2) are provided with one or more substantially vertical plates for restraining and/or controlling the flow of particulate material.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: July 31, 2001
    Assignee: ASJ Holding APS
    Inventor: Arne Sloth Jensen
  • Patent number: 6249989
    Abstract: A method and apparatus of heating or cooling a charge of a solid material are disclosed. The method includes the steps of supplying a charge of the material to form a packed bed of solids in a process vessel having one or more passageways through which a heat transfer fluid can flow, passing a heat transfer fluid through the one or more passageways and supplying a working fluid to said vessel. The method is characterized by circulating the working fluid through the bed, the circulation step including removing at least part of the working fluid from one or more sections of the vessel and then returning the working fluid to other sections of the vessel.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: June 26, 2001
    Assignee: KFx Inc.
    Inventors: David S. Conochie, Mark J. Greenwood
  • Patent number: 6248298
    Abstract: An improved stripper section design is provided for use in fluid catalytic cracking (FCC) units. The stripper section contains means for imparting rotational movement to the FCC cracking catalyst as it traverses the stripping section. In one embodiment the stripper section contains at least one rotation vane that is preferably disposed on the surface of a stripper section tray. The rotation vane provides angular, rotational movement to the cracking catalyst as it traverses the stripper section. Vertical movement is imparted to the cracking catalyst due to gravity and radial movement is imparted to the catalyst due to the slanted nature of the tray. Through the use of the rotation vanes the contact between the catalyst particles and the stripping steam is increased, thereby improving the overall efficiency of the FCC operation.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: June 19, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Richard C. Senior, Christopher G. Smalley, Timothy P. Holtan
  • Patent number: 6236022
    Abstract: A hot shelf tower dryer includes a casing having substantially parallel shelves which alternately extend from opposite ends of the tower casing to form a repetitively convoluted passage. At least one of the shelves has a hollow interior or chamber. Disposed in the chamber is at least one electrical heating element, where the power supplied to the heating element is regulated by a control system. As controlled, the electrical heating elements provide sufficient output to the tower casing which result in a substantially constant temperature throughout the passage. With the heating elements, the hot shelf tower dryer does not require the burning of natural gas or some other fossil fuel to heat the tower dryer unless such heating is desired to heat the forced air that conveys the cotton through dryer. As a result, in comparison with hot shelf tower dryer's that use fossil fuels as a heating source, pollutant emissions, such as nitrous oxide (NOx) emissions, are eliminated or at least significantly reduced.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: May 22, 2001
    Inventor: William E. Winn
  • Patent number: 6203761
    Abstract: A fluidized bed apparatus for the production and treatment of granules and a method for its operation is provided. The fluidized bed apparatus includes an entry chamber through which a gas is designed to flow upwards; a fluidization chamber for fluidizing the material located above the entry chamber; pivotal slats located between the entry chamber and the fluidization chamber; and a nozzle arm located in the chamber below the slats with a nozzle line ending in a nozzle which is directed into the fluidization chamber through cutouts in the slats and extends partly into the fluidization chamber. The fluidized bed apparatus has rigid nozzle arms and lines which are easily jacketed for heating and cooling applications.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: March 20, 2001
    Assignee: Henkel Kommandigesellschaft Auf Aktien
    Inventors: Kathleen Paatz, Werner Pichler, Wilfried Raehse, Hans Raker
  • Patent number: 6185841
    Abstract: A method and apparatus for heating or cooling a solid material (93) in a process vessel (80) is disclosed. The Method includes supplying a working fluid to a vessel which holds a packed bed (93) of the solid material. The method is characterised by reversing the flow of the working fluid to enhance heat transfer between a heat exchange fluid and the solid material.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: February 13, 2001
    Assignee: KFx Inc.
    Inventor: David Stewart Conochie
  • Patent number: 6185843
    Abstract: A pneumatic conveyance tobacco dryer which includes a conveyance duct having a first portion, a second, upwardly extending portion and a third, curved portion intercommunicating the first and second portions. A tobacco feed chute extends downwardly and opens into the second portion of the duct. The geometry of the dryer at and in the region of the feed chute is such as to effect the object of reducing the contact of tobacco particles with the inner surfaces of the conveyance duct.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: February 13, 2001
    Assignee: British American Tobacco (Investments) Limited
    Inventors: William John Stone, Ian Ernest Tatham, Werner Hirsch, Arno Eugen Weiss
  • Patent number: 6148541
    Abstract: A fluid-bed drying unit, particularly but not exclusively used in the field of tobacco drying comprising a drying chamber having a loading inlet and an outlet for discharging the product and provided with openings for the passage of a drying medium. The drying chamber has a substantially tubular shape extending along a longitudinal axis and a substantially triangular vertical cross-sectional shape; the longitudinal axis is substantially inclined with respect to a horizontal axis and means are provided to inject a drying fluid substantially at right angles to the longitudinal axis.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: November 21, 2000
    Assignee: Garbuio S.p.A.
    Inventor: Mansueto Favaro
  • Patent number: 6147327
    Abstract: A hot shelf tower dryer includes a casing having substantially parallel shelves which alternately extend from opposite ends of the tower casing. As configured, the dryer includes a repetitively convoluted passage. At least one of the shelves has a hollow interior or chamber. Disposed in the chamber is at least one electrical heating element, where the power supplied to the heating element is regulated by a control system. As controlled, the electrical heating elements provide sufficient output to the tower casing which result in a substantially constant temperature throughout the passage. With the heating elements, the hot shelf tower dryer does not require the burning of natural gas or some other fossil fuel to heat the tower dryer unless such heating is desired to heat the forced air that conveys the cotton through dryer. As a result, in comparison with hot shelf tower dryer's that use fossil fuels as a heating source, pollutant emissions, such as nitrous oxide (NO.sub.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: November 14, 2000
    Inventor: William E. Winn
  • Patent number: 6122841
    Abstract: Apparatus for the drying of particulate material in superheated steam in a closed vessel (1). The vessel consists of a number of upwardly open, elongated and substantially vertical processing cells (2) which are placed around a central part with a heat exchanger (3). The last of these processing cells (2) has a closed bottom and is the discharge cell (4), while the remainder (2) have bottoms (5) through which steam can permeate. The processing cells (2), which lie at the side of one another, stand in mutual connection through openings (11) at the lowermost ends of the cells, so that the particulate material which is dried by the superheated steam which is blown up from the heat exchanger (3) through the steam-permeable bottoms (5) can pass from one processing cell (2) to the next through said openings (11).
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: September 26, 2000
    Assignee: ASJ Holding ApS
    Inventor: Arne Sloth Jensen
  • Patent number: 6108935
    Abstract: In a process for processing particulate material with a stream of fluid in an annular processing zone, which includes the steps of supplying the particulate material for processing in the zone, discharging processed material from the zone and generating in the zone a circumferentially directed flow of fluid to develop a circulating turbulent band of particles, an improvement to the processing zone which provides a predictable particle flow path both circumferentially and helically of the zone. The improvement comprises directing the flow of fluid to develop a circulating bed with inner bed depth and outer bed depth, a flow of fluid directed at an angle relative to the processing zone base and controlling fluid velocity so that it is greater than the terminal velocity of larger particles point of impact on the bed base and less than the terminal velocity of smaller particles in the superficial space above the bed upper surface.
    Type: Grant
    Filed: September 19, 1998
    Date of Patent: August 29, 2000
    Assignee: Mortimer Technology Holdings Limited
    Inventor: Christopher E. Dodson
  • Patent number: 6049996
    Abstract: An apparatus and method for separating fluid from a device such as a spherical shaped semiconductor integrated circuit. To this end, one embodiment provides a first area for receiving the device, a reducing area registering with the first area, a first passage centered in the reducing area, and a second passage adjacent the first passage. The pressure inside the first area is greater than the pressure inside the reducing area. Also, the pressure inside the first passage is greater than the pressure inside the second passage. The device moves through the first area and into the reducing area. Once in the reducing area, the device is inclined to enter the first passage while at least part of the fluid is inclined to enter the second passage. As a result, the fluid is thereby separated from the device.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: April 18, 2000
    Assignee: Ball Semiconductor, Inc.
    Inventors: Alex Freeman, Ram Ramamurthi
  • Patent number: 6000146
    Abstract: An apparatus for continuously granulating powder material has a feeder for continuously supplying powder material, and a granulation vessel. The granulation vessel includes a granulation zone and a drying zone. The apparatus also has a spray nozzle disposed so as to be declined above the granulation zone for adding binder to the powder material, a perforated plate disposed below the granulation zone and the trying zone, an intermediate weir disposed between the granulation zone and the drying zone so as to provide a space between the intermediate weir and the perforated plate, an outlet weir disposed at an outlet side of the drying zone, and a heated air supplying device for supplying from below heated air to the granulation zone and the drying zone so as to form a fluidized bed of the material.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: December 14, 1999
    Assignees: Knorr Foods Co., Ltd., Ajinomoto Co., Inc.
    Inventors: Kazuo Yoshioka, Masakazu Yoshizawa, Masahiro Fukazawa
  • Patent number: 5992050
    Abstract: Improved desolventizer of the countercurrent type. Solvent laden solids enter a closed chamber wherein they are continuously agitated by stirrers. Steam from below rises up through a porous deck and the solids thereon whereupon the steam condenses to release its heat of vaporization thereby aiding in the evaporation of solvent in the solids. The desolventized solids exit the chamber through a discharge passage. The deck includes generally radially spaced apart, substantially parallel stainless steel bars supported on substantially radially extending carbon steel supports. The spaces or slots thereby defined by the bars define an open area covering up to about 30% of the surface area of the deck. The gaps between the bars are sufficiently narrow so as to reduce the likelihood of the solids being worked into the gaps.
    Type: Grant
    Filed: November 11, 1998
    Date of Patent: November 30, 1999
    Assignee: The French Oil Mill Machinery Company
    Inventors: Timothy G. Kemper, Richard D. Farmer
  • Patent number: 5946820
    Abstract: An apparatus for continuously granulating powder material has a feeder for continuously supplying powder material, and a granulation vessel. The granulation vessel includes a granulation zone and a drying zone. The apparatus also has a spray nozzle disposed so as to be declined above the granulation zone for adding binder to the powder material, a perforated plate disposed below the granulation zone and the trying zone, an intermediate weir disposed between the granulation zone and the drying zone so as to provide a space between the intermediate weir and the perforated plate, an outlet weir disposed at an outlet side of the drying zone, and a heated air supplying device for supplying from below heated air to the granulation zone and the drying zone so as to form a fluidized bed of the material.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: September 7, 1999
    Assignees: Knorr Foods Co., Ltd., Ajinomoto Co., Inc.
    Inventors: Kazuo Yoshioka, Masakazu Yoshizawa, Masahiro Fukazawa
  • Patent number: 5839207
    Abstract: A bed plate for a fluid bed apparatus comprises a great plurality of bulges or dents each having at least one through-going gas flow opening defined therein. Conventional bed plates having openings of the gill type inevitably comprises small cracks or notches formed in the edge portion defining each of the gas flow openings. According to the invention the gas flow openings are formed in the bulges or dents in a manner so as to exclude the formation of such notches in the edge portion. This may, for example, be done by forming such openings with crack free edges prior to or after the formation of the bulges or dents. Thus, the openings may be formed by punching, drilling, laser cutting or the like. Each of the gas flow openings is directed in relation to the plane of the bed plate so as to cause a flow of gas, which is passed through the opening, to contact an adjacent part of the bed plate, which interconnects the bulges or dents.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 24, 1998
    Assignee: Niro A/S
    Inventors: Mogens A Christensen, Benny H. Madsen
  • Patent number: 5799412
    Abstract: Drying of a solid polymer is disclosed in which a solid polymer obtained by polymerization (or a product of modification of the solid polymer) is contacted with a drying gas so that any solvent and/or unreacted polymerization feed materials remaining in the solid polymer are removed to thereby dry the solid polymer, and in which a gaseous polymerization feed material is used as the drying gas and contacted with the solid polymer to thereby dry the solid polymer (step i), and the resultant solid polymer is contacted with a drying gas which contains an inert gas (step ii). The drying gas can be recovered from the step (i) and part thereof can be recycled through a polymerization step as it is or be recycled, after cooling the drying gas to thereby remove any condensed components, to the step (i). Not only can the solid polymer be efficiently dried but also the solvent and unreacted polymerization feed materials recovered from the solid polymer can efficiently be recycled by the disclosed method.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: September 1, 1998
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Ryoichi Yamamoto, Satoru Ohtani, Toshimi Hachimori, Teruhisa Kojima, Takahiro Mamyoda
  • Patent number: 5779989
    Abstract: An improved fluidized bed reactor having a reactor shell and a reaction chamber within the shell, the reaction chamber having chamber walls and a chamber bottom portion, the improvement comprising at least one baffle disposed within the reaction chamber, the baffle comprising a pair of outer refractory walls, an inner refractory wall between and contiguous with the outer refractory walls, and a metallic reinforcement member embedded within the inner refractory wall, the inner and outer walls being attached to at least the chamber bottom portion.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: July 14, 1998
    Assignee: Dorr-Oliver Incorporated
    Inventors: George Tomasicchio, Alfredo E. Basas
  • Patent number: 5595001
    Abstract: Method and apparatus for producing sodium perborate monohydrate by dehydrating sodium perborate tetrahydrate in a fluid bed with heated air. Contact surfaces are arranged inside the fluid bed whose total area is the same as up to 500 times the area of the approach-flow bottom of the fluid bed. The contact surfaces are advantageously designed as heat exchangers whose surface temperature is adjusted to maintain 90.degree. to 110.degree. C. at the contact surfaces. The method results in a sodium perborate monohydrate with especially high abrasion resistance. In addition, the energy requirement is lower than that provided in the previously known method commonly used in the industry.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: January 21, 1997
    Assignee: DeGussa Aktiengesellschaft
    Inventors: Rudiger Schutte, Alexander Ruhs, Claas-Jurgen Klasen, Hans-Christian Alt