Foraminous Distributors Or Walls Patents (Class 34/174)
  • Patent number: 10767926
    Abstract: An improved grain dryer is presented having a mixed-flow heating section having a plurality of inlet ducts connected to the plenum that facilitate air flow into the grain column from the heated and pressurized heat plenum, and a plurality of exhaust ducts connected to openings in the exterior wall that facilitate air flow out of the grain column. A tempering section is positioned below the heating section and includes solid walls that reduce air flow through the grain column. A cooling section is positioned below the tempering section and includes perforated walls that facilitate air flow through the grain column and into the plenum. In use, heated air is forced outward through the mixed-flow heating section heating and drying the grain and air is pulled through the cross-flow cooling section cooling the grain. Air pulled through the cross-flow cooling section is recycled into the mixed-flow heating section thereby recycling heat.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 8, 2020
    Assignee: SUKUP MANUFACTURING CO.
    Inventors: Casey Scott Heilskov, Kerry Hartwig, Tyler Rau
  • Patent number: 10591213
    Abstract: Systems and methods for drying system control. A control system receives inputs and measurements and provides modulated outputs to a drying system, control subsystems, or a user interface. An energy ratio compares the optimal energy required to the actual energy applied is into the control system for a drying process and can be provided as a constraint for optimization. The energy ratio enables compensation for effects that environmental variables such as ambient humidity and temperature may have on system performance. The control system can modulate the energy supplied by the drying system to meet an energy ratio setpoint. Embodiments of the present disclosure can validate the effectiveness of the control system by monitoring material yield and utility consumption in real-time to optimize system performance.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: March 17, 2020
    Assignee: ENVIROSTAR, LLC
    Inventor: Clinton Buchner
  • Patent number: 10589243
    Abstract: The invention relates to a catalytic reactor suited for exothermal reactions with a radial process fluid flow and process fluid flow guides which ensures an extended fluid flow path and higher flow velocity and thereby enhanced cooling of the catalyst bed in the reactor.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 17, 2020
    Assignee: Haldor Topsoe A/S
    Inventors: Anders Lindhard Christensen, Emil Andreas Tjärnehov
  • Patent number: 10378820
    Abstract: A grain dryer having a mixed-flow heating section, a tempering transition section, and a vacuum-cooled crossflow cooling section. A fan positioned on the end of the dryer creates a negative pressure in the cooling plenum that pulls air through the grain, warming the air while cooling the grain. This warmed air is pulled through the fan and then passed through a heater to bring it to appropriate drying temperature. This air is then pushed into a heating plenum, where it passes through a mixed-flow grain column, drying the grain, and then exhausted to ambient air.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 13, 2019
    Assignee: Sukup Manufacturing Co.
    Inventors: Casey Scott Heilskov, Kerry Hartwig, Tyler Rau
  • Patent number: 10302359
    Abstract: A grain dryer having a column with an interior wall, an exterior wall, an inlet and an outlet. The column has an upper heated pressurized plenum and a lower, low pressure, suction plenum. Attached to the interior wall within the column is a narrowing divider that increases the path of the heated air at the pressure gradient.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 28, 2019
    Assignee: Sukup Manufacturing Co.
    Inventor: Mitchell Chase Meier
  • Patent number: 9889583
    Abstract: A method and apparatus for forming a grain bin sensor cable including a plurality of mold members defining a mold cavity. A pre-formed cable with wires disposed therein is placed into the mold cavity, heated, and formed into a post-formed cable. The post-formed cable includes a recessed portion and a pair of end caps. Apertures are created within the recessed portion so as to expose a portion of the wires. The end caps are generally cone-shaped and include vertical walls. The post-formed cable is removed from the mold cavity and a sensor package is coupled to the wires exposed in the recessed portion and captured between the vertical walls of the end caps. A housing is coupled about the sensor package.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: February 13, 2018
    Assignee: CTB, Inc.
    Inventor: Brent J. Bloemendaal
  • Patent number: 9861010
    Abstract: Apparatuses and methods are provided for blocking removal of an air-moving assembly from a chassis when in operational state. The apparatus includes a protective louver assembly having a louver(s) and an interlock element(s). The louver(s) is disposed at an air inlet or an air outlet of the air-moving assembly, and pivots between an operational and a quiesced orientation, dependent on presence or absence, respectively, of airflow through the air-moving assembly. The interlock element(s) is associated with the louver(s) to pivot with the louver(s) between the operational orientation and the quiesced orientation. In the operational orientation, the interlock element(s) blocks, at least in part, access to at least one fastener securing the air-moving assembly within the chassis, and thereby prevents removal of the air-moving assembly from the chassis when in the operational state.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: January 2, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. Campbell, Christopher R. Ciraulo, Milnes P. David, Dustin W. Demetriou, Robert K. Mullady, Roger R. Schmidt
  • Patent number: 9846077
    Abstract: In some aspects, a device for apportioning granular samples includes a sample feeder defining a conduit, the conduit including a first opening to receive the granular samples and a second opening. The device includes a shuttle operably coupled to the sample feeder to receive the granular samples from the conduit via the second opening. The shuttle is configured to apportion the granular samples to incrementally enter a sample chamber to be analyzed. The device includes an outlet conduit fluidly coupled to the sample chamber and configured to permit the sample chamber to be evacuated.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: December 19, 2017
    Assignee: H2OPTX INC.
    Inventors: Rudolf J. Hofmeister, Donald A. Ice, Scott W. Tandy
  • Patent number: 9644892
    Abstract: An internal staged suppression system for suppressing a hazard occurring in a grain dryer includes a plurality of vertical column sections and at least one spray head positioned radially inward within the interior of the grain dryer. The spray head includes a deflector cap that generates a substantially horizontal spray of water sufficient to reach the walls defining the grain columns.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: May 9, 2017
    Assignee: CUSTOM DRYER SUPPRESSION SYSTEM, LLC
    Inventor: Wesley L. Peterson
  • Patent number: 9540597
    Abstract: A process for the preparation of a powder comprising one or more complexing agent salts of the general formula comprises atomizing an aqueous solution comprising the one or more complexing agent salts in the presence of a crystalline fine dust of the same complexing agent salts and a drying step, wherein the concentration of the one or more complexing agent salt is from 10 to 80% by weight, based on the total weight of the aqueous solution, with an upper limit for the average particle diameter of the crystalline fine dust which is lower by at least a factor of 2 than the lower limit of the average particle diameter of the powder obtained after the process, and the fraction of the crystalline fine dust is from 0.1 to 20% by weight, based on the weight of the powder obtained after the process.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: January 10, 2017
    Assignee: BASF SE
    Inventors: Frank Mrzena, Ullrich Menge, Michael Schoenherr, Thomas Heidenfelder
  • Patent number: 9051117
    Abstract: An actuator opens and closes a lid on a bulk storage container. The actuator may be activated remotely using a remote control. When actuated, the actuator will lift the lid so that it is clear of the structure, and will then rotate the lid in a horizontal plan about a vertical axis until the lid is rotated to uncover the opening. The axis of rotation is located near the perimeter of the opening, so that very little of the lid remains over the opening when in the open position. To close the lid from the open position, the remote control may then again be used to actuate the closing process. The closing process works in reverse of the opening process. Therefore, during closing, the lid will rotate back to its original orientation over the hole and then lower into the closed position.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 9, 2015
    Inventor: David Alan Kirchhoff
  • Patent number: 9027257
    Abstract: A system for cleaning a grain dryer screen includes a grain dryer screen supported within a grain bin and having a grain contacting surface opposing a grain debris contacting surface. A drying airflow path through the grain dryer screen is defined sequentially by the grain debris contacting surface and the grain contacting surface. A cleaning assembly includes a first cleaning arm mounted within the grain bin and disposed along the grain debris contacting surface. A cleaning assembly powering system is configured to move the first cleaning arm along a predetermined cleaning path relative to the grain debris contacting surface.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: May 12, 2015
    Inventor: Harry Harker
  • Patent number: 9015958
    Abstract: A controller is coupled to a plurality of moisture sensors positioned within the grain bin at various spaced-apart locations. The controller determines a grain moisture level adjacent each moisture sensor and compares the grain moisture level to a predetermined maximum moisture level. The controller is coupled to a grain spreader that is configured to selectively distribute incoming grain into the grain bin and operates the spreader to distribute incoming grain to create a shortened airflow path through the grain that encompasses the moisture sensors having determined grain moisture levels above the predetermined maximum moisture level. The controller is coupled to a fan that is coupled to the grain bin and configured to provide airflow through the grain in the grain bin. The controller operates the fan to provide greater airflow through the grain along the shortened airflow path than is provided along airflow paths outside the shortened airflow path.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: April 28, 2015
    Assignee: CTB, Inc.
    Inventor: Brent J. Bloemendaal
  • Patent number: 8875412
    Abstract: A dryer burner apparatus includes a gas supply line that is fluidly coupled to a gas supply. A burner tube is fluidly coupled the gas supply line and has a top side and a bottom side. The burner tube has a plurality of apertures extending therethrough and the apertures are positioned in the bottom side. An air mixer is positioned below the burner tube. The air mixer has a plurality of air openings extending therethrough. A blower directs air upwardly to the burner tube so that the air can be heated by the burner tube.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: November 4, 2014
    Inventor: Allan Anderson
  • Publication number: 20140245626
    Abstract: The present invention provides an improved continuous vertical feed pistachio nut dryer that has an inner compartment with inner passageways and an infeed assembly with a batch hopper used in conjunction with an auger and pivotal gates to provide a structure configured to evenly fill the inner passageways along the length of the dryer.
    Type: Application
    Filed: February 10, 2014
    Publication date: September 4, 2014
    Inventor: James William Tjerrild
  • Patent number: 8747768
    Abstract: An apparatus for contacting a bed of particulate material with a cross flowing fluid, which maintains the bed of particulate material within a retention volume. The apparatus includes partitions for retaining particles, with apertures disposed within the partitions. The apertures are covered by louvers that extend above the edges of the apertures to prevent solid particles from spilling through inlet apertures.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: June 10, 2014
    Assignee: UOP LLC
    Inventors: Bryan K. Glover, Guy B. Woodle, Joseph E. Zimmermann, John J. Senetar
  • Patent number: 8726537
    Abstract: In a method and equipment for continuous sintering of pelletized mineral material, a partition wall (7, 8) arranged between two adjacent cooling chambers (4, 5; 5, 6) is in the height direction placed at a distance from the pellet bed (2), so that in between the partition wall (7, 8) and pellet bed (2), there is left a gap (s) that allows gas to flow between two adjacent cooling chambers (4, 5; 5; 6) through the gap (s) in order to equalize the pressure between the cooling chambers.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: May 20, 2014
    Assignee: Outotec Oyj
    Inventor: Marko Palander
  • Patent number: 8720079
    Abstract: A grain aeration assembly is provided for a hopper bottom bin, and includes a plurality of curved wall segments sized to pass through the manhole of the bin. The wall segments are assembled inside the bin to form a cylindrical tower extending upwardly. The wall segments include an internal frame and inner and outer screens. The tower is supported above the sloped floor of the bin by a plurality of legs. An air conduit extends between the tower and an exterior fan, which provides forced air into the space between the inner and outer screens of the wall segments. The air flows outwardly through the screens, while grain or stored material is prevented from passing through the screens into the wall segments.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: May 13, 2014
    Assignee: Woodhaven Capital Corp.
    Inventors: Juan Neufeld, Bernie Thiessen
  • Patent number: 8646189
    Abstract: The present invention provides an improved continuous vertical feed pistachio nut dryer that has an inner compartment defined by bulkhead walls formed of smooth and seamless outer walls of perforated sheet stock, and has an infeed chamber with a batch hopper used in conjunction with an auger to provide a structure configured to operate in a batch fill mode wherein the inner compartment is filled evenly along the length of the dryer.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: February 11, 2014
    Inventor: James William Tjerrild
  • Patent number: 8601714
    Abstract: A grain turner for turning grain in a drying tower includes opposed generally vertical side walls and a generally vertical dividing plate (which is shorter than the side walls) extending between the side walls; the dividing plate defining inner and an outer vertical channels in a portion of the turner. An inner inclined plate is pivotally connected to one side wall to be within the inner channel and an outer inclined plate is connected to the other side wall to be within the outer channel. The inclined plates are pivotal between a first position in which they are inclined downwardly in a opposite widthwise directions and a second position in which they are generally adjacent their respective side walls. The inclined plates have a length such that when they are in the first position, their lower edges are proximate a bottom of the divider plate.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: December 10, 2013
    Assignee: The GSI Group, LLC
    Inventors: David Morrison, Jared Becker
  • Patent number: 8359768
    Abstract: An air inlet and outlet passage module for desiccation is formed in a hollow structure including a frame and two boards. The frame has a frame channel formed between frame sides and a duct cap on an outer side. The duct cap has an opening communicating with the frame channel and is coupled with an air duct to connect a plurality of air inlet and outlet passage modules in series. The duct cap not being coupled is sealed through a lid. The two boards are located at two corresponding sides of the frame and have a plurality of air vents formed thereon to facilitate air ventilation. Each air vent is formed at a diameter smaller than that of a grain to prevent crops from dropping into the module. The invention can be assembled and disassembled, and coupled in series or parallel easily to enhance drying efficiency and reduce energy waste.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: January 29, 2013
    Inventor: Tsan-Hsiung Cheng
  • Patent number: 7846403
    Abstract: An apparatus is for directing a fluid into a radial reactor is and which maintains a bed of solid particulate material within a reactor. The apparatus comprises a duct for directing fluid into a reactor and has a screenless face for the egress of the fluid, while providing for the retention of solid particles.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: December 7, 2010
    Assignee: UOP LLC
    Inventors: Michael J. Vetter, Paul A. Sechrist, Bryan K. Glover
  • Patent number: 7842259
    Abstract: An apparatus for contacting a bed of particulate material with a cross flowing fluid, which maintains the bed of particulate material within a retention volume. The apparatus includes partitions for retaining particles, with apertures disposed within the partitions. The apertures are covered by shrouds that extend above the edges of the apertures to prevent solid particles from spilling through inlet apertures.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: November 30, 2010
    Assignee: UOP LLC
    Inventor: Bryan K. Glover
  • Patent number: 7818894
    Abstract: This process embodies forcing air through grain and granular biological products using a high volume horizontal airflow from a central vertical pervious tube to one or more plenum chambers near the structure sidewall to dry or cool products. Cross-flow air movement can be supplied by either suction or pressure. This conditioning and drying method has advantages over conventional storage structures, especially where product depth is much greater than diameter. In this process, horizontal air typically moves only ? to ? of vertical distances. Horizontal airflow resistance through elongated seeds is 50-60 percent of vertical airflow. Power for horizontal airflow is typically 8-15% that of vertical airflow. Grain and seed drying costs will be 15-30% of high temperature drying. To enhance germination, storage and grain and seed quality, and to kill or exclude insect pests, ozone is applied to drying or aeration airstreams for treating stored products and storages.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: October 26, 2010
    Inventors: Ronald T. Noyes, Vitaly G. Danchenko
  • Publication number: 20100223800
    Abstract: A combined plenum divider/hopper is provided for a grain drying tower. The divider/hopper is positioned in the drying tower proximate the heater for the drying tower and is operable to adjust the ratio of the length of the heating portion of the plenum to the length of the cooling portion of the plenum.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 9, 2010
    Applicant: THE GSI GROUP, LLC
    Inventors: David Morrison, John M. Frankovich
  • Patent number: 7695696
    Abstract: An apparatus for contacting a bed of particulate material with a cross flowing fluid, which maintains the bed of particulate material within a retention volume. The apparatus includes partitions for retaining particles, with apertures disposed within the partitions. The apertures are covered by louvers that extend above the edges of the apertures to prevent solid particles from spilling through inlet apertures.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: April 13, 2010
    Assignee: UOP LLC
    Inventors: Bryan K. Glover, Guy B. Woodle, Joseph E. Zimmermann, John J. Senetar
  • Patent number: 7622089
    Abstract: An apparatus for contacting a bed of particulate material with a cross flowing fluid, which maintains the bed of particulate material within a retention volume. The apparatus includes partitions for retaining particles, with apertures disposed within the partitions. The apertures are covered by shrouds that extend above the edges of the apertures to prevent solid particles from spilling through inlet apertures.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: November 24, 2009
    Assignee: UOP LLC
    Inventor: Bryan K. Glover
  • Patent number: 7568297
    Abstract: An improved vertical aeration system is provided for a grain bin having a sloped hopper bottom with a discharge opening. A pyramid frame includes legs with lower ends attachable to the hopper bottom. Concave perforated walls are attached to the legs. Braces extending between the legs provide structural support for the walls. An air duct extends upwardly and centrally into the interior of the frame, to supply air into the aeration system for flow outwardly through the perforated walls.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: August 4, 2009
    Assignee: Woodhaven Capital Corp.
    Inventors: Ken Pierson, Brian Macdonald, John Penner
  • Patent number: 7497031
    Abstract: An apparatus for enhanced drying of bulk agricultural products is provided in a transport trailer. The apparatus includes a perforated false bottom below the product, an air manifold buried within the product, and baffles for air distribution. Product unloading capabilities are enhanced as well. These capabilities enhance the uniformity and reproducibility of drying, ease of product handling, and greater safety in unloading the product.
    Type: Grant
    Filed: February 5, 2006
    Date of Patent: March 3, 2009
    Inventor: Charles Revis Clary
  • Publication number: 20080295872
    Abstract: A substrate cleaning chamber comprises various components, such as for example, a consumable ceramic liner, substrate heating pedestal, and process kit. The consumable ceramic liner is provided for connecting a gas outlet channel of a remote gas energizer to a gas inlet channel of a substrate cleaning chamber. The substrate heating pedestal comprises an annular plate having a substrate receiving surface with a plurality of ceramic balls positioned in an array of recesses. A process kit comprises a top plate, top liner, gas distributor plate, bottom liner, and focus ring.
    Type: Application
    Filed: September 19, 2007
    Publication date: December 4, 2008
    Inventors: Martin Riker, Wei W. Wang
  • Patent number: 7188435
    Abstract: A knock-down type dryer assembly for prosthesis liners includes a housing mounted on a base member and a prosthesis liner support detachably mounted to the housing. The prosthesis liner support comprises a cross-member detachably coupled to an arm member and includes adjustable side wing portions that allow a user to adjust for the size of a particular prosthesis liner. When activated, an electrical fan in the housing draws ambient air into the housing and directs it up through the prosthesis liner where it circulates before exiting the liner. An anti-microbial lamp within the housing can be utilized to help rid the prosthesis liner of harmful bacteria. The manner in which the liner support is assembled, and the manner in which the liner support detachably connects to the housing, allows a user to easily assemble and disassemble the liner dryer and encourages proper cleaning/drying of the prosthesis liner before use.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: March 13, 2007
    Inventors: Bonnie E. Woolston, Alan E. Young
  • Patent number: 7100301
    Abstract: A system for drying grain includes a receiving bin defining a cavity therein and further includes intake and outlet ports. A conduit is operably connected to the receiving bin that includes a plurality of check valves and a stop valve. The system further includes a mechanism for introducing air at a selected flow rate into the conduit and a combustion source that includes a pilot gas light wherein fire is created that burns between 2000–3000 degrees Fahrenheit. The combustion source includes a flue positioned thereabove and a drain outlet extending substantially orthogonal to the conduit. A heat exchanger is connected to the combustion source including a fan and a filter operably connected thereto.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: September 5, 2006
    Inventors: Jason C. Humphrey, Robert E. Pitts
  • Patent number: 7077888
    Abstract: The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be filtered out as it passes through the dust filter. In order to produce a device which separates dust in a highly efficient manner and which can be operated in a highly reliable manner and be used to heat combustion air for the combustion plant, the at least one dust filter is embodied as a bulk material filter in whose bulk material heat from the flue gases can be collected when the bulk material is cross-flown by the flue gases and by means of whose bulk material heat collected from the flue gases when the combustion air of the combustion plant flows through the bulk material filter can be given off to said combustion air.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: July 18, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Harald Dichtl, Thomas Hagen, Roland Klaus, Jörg Lengert
  • Patent number: 7022221
    Abstract: An FCC apparatus uses a cantilevered support for supporting baffles in a stripping vessel. Only one end of the support is fastened to a wall of a contacting conduit or a wall of the stripping vessel and the other end is spaced apart from the near wall of the contacting conduit or the stripping vessel. The arrangement provides for easier maintenance and accommodates differential thermal expansion.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: April 4, 2006
    Assignee: UOP LLC
    Inventor: Brian W. Hedrick
  • Patent number: 6993856
    Abstract: A jet spouted fluidized bed drier is described in which the bottom half of the drier chamber comprises a first lower conical part, and the top half of the drier chamber comprises a second upper conical part surrounding a conical grid located near to the top end of the second part. The drier chamber thus comprises two conical parts connected together at their wide ends. The result of this arrangement is that the collision zone becomes a toroid with an essentially triangular cross-sectional shape defined essentially by the conical internal surface of the top part and the conical outer surface of the conical grid. This revised structural arrangement has been found to be able to process materials which either cannot be processed, or cannot be processed efficiently, with known jet spouted fluidized bed driers. Additionally, this revised structural arrangement has been found to be able to process materials more efficiently, and to a lower desired final liquid content values.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: February 7, 2006
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources
    Inventors: Marzouk Benali, Mouloud Amazouz
  • Patent number: 6449869
    Abstract: Device and method for drying a pourable products. The device includes a rotor chamber in which a rotor is arranged with a vertical rotor axis. The rotor has a central horizontal surface and, at least in its radially outer third, a conical shell which is inclined to the axis of rotation by 20° to 70°, in such a way that the end face of the conical shell has the largest diameter and is located at the top. The conical shell has, at least partially, sheet-like gas passages in the form of perforations or screens. The method for drying pourable products provides for dry gas to be fed in a sheet like manner to the products to be dried during the radially peripheral circulation of the products without the products being swirled up and being exposed to unacceptable compressive, concussive and/or frictional loads.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: September 17, 2002
    Assignees: Glatt Systemtechnik Dresden GmbH, KWS Saat AG
    Inventors: Frank Bretschneider, Bruno Peter, Jürgen Brückner
  • Patent number: 6374510
    Abstract: The invention relates to a drier-heat-exchanger for heat treating PET granulate and similar products. The drier has a channel which is delimited by air permeable sheets. This ensures that the product can pass through efficiently and evenly which in turn means that a higher gas speed can be used without the product being stirred up and therefore shorter heating times are possible.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: April 23, 2002
    Assignee: Buhler AG
    Inventors: Hans Geissbuehler, Filippo Terrasi
  • Patent number: 6354018
    Abstract: A heat and/or mass transfer process and apparatus for treating various types of materials. A heat and/or mass transfer process includes causing a gas to impinge upon a flowing material, wherein the gas velocity having a component tangential to the flow direction of the material can be characterized such that a fluctuating velocity is superimposed upon the mean velocity of the material in the flow direction. The process further includes effecting velocity fluctuations by means of a traveling tangential acoustic wave while a steady overall gas flow is maintained, and controlling the gas velocity by means of a vernier valve. By using fluctuating velocity superimposed upon the mean velocity, an effective thermal and mass transfer resistance of the boundary layer can be reduced, as well as reducing the pressure fluctuations.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: March 12, 2002
    Assignee: University Of Sheffield
    Inventor: Joshua Swithenbank
  • Patent number: 6330754
    Abstract: An access door to a pressurized enclosure such as an ear corn dryer swings about an axis of rotation that divides the door into first and second panels. If the door axis of rotation is midway between the door edges, forces on the panels from the pressurized air when the door is closed are substantially equal. A person need exert only a nominal force on one of the panels to open the door. Preferably, one of the panels has a larger area than the other panel. The force produced on the larger panel keeps the access door closed such that a measurable force must be exerted by a person to open the door. The door is sealed on opposite faces when the door is closed.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: December 18, 2001
    Assignee: KC Manufacturing Inc.
    Inventor: Ken McAllister
  • Patent number: 6311411
    Abstract: An vertical dryer (10) is provided having a plurality of individual dryer decks (12-18) including alternating fan and heater decks (14, 16), an air circulation assembly (11), and an upright, common plenum chamber (26) in communication with the decks (12-18). The assembly (11) is operable to create a continuous drying air stream which passes upwardly in countercurrent flow relationship to product on the decks (12-18). Also, the assembly (11) serves to pass the drying air stream into, through and out of the plenum (26) at the level of each heater deck (16); in the plenum (26), the air stream velocity is decreased, causing particulate fines to fall out of the stream for collection. The use of the common plenum (26) also allows independent control of the decks (12-18) in terms of air flows therethrough and recirculation characteristics.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: November 6, 2001
    Assignee: Wenger Manufacturing Inc.
    Inventor: Douglas Clark
  • 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: 6253465
    Abstract: A multi-chamber fluidized bed classifying apparatus comprising; a main chamber having a fluidized bed arranged on wind boxes, through a perforated gas distributing plate is divided into a drying chamber and a classifying chamber by a partition plate, and a communication passage is defined under the plate. The wind boxes have respective lower ends connected to discharge devices respectively. The wind box is connected to a processing fluidization gas supply system for supplying the fluidization gas into the box, while the wind box is connected to a classifying fluidization gas supply system for supplying the fluidization gas into the box. The classifying fluidization gas supply system is provided with a flow control unit which adjusts the quantity of gas supplied into the classifying chamber to control the size of classified particles. The processing fluidization gas supply system is provided with a control unit, which adjusts the gas quantity and/or the temperature of gas supplied into the drying chamber.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: July 3, 2001
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Noboru Ichitani, Isao Hayashi, Mikio Murao
  • Patent number: 6237247
    Abstract: A spray dryer apparatus and method suitable for the production of detergents, cleaners and components thereof wherein the inner wall of the drying chamber is provided with an air-permeable textile material lining at a distance from the inner wall, and at least one outlet for compressed gas is provided between the inner wall and the textile material lining whereby adherence of sticky deposits on the inner wall of the drying chamber is avoided or reduced.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: May 29, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Jan Van Den Meersche
  • Patent number: 6230421
    Abstract: A method and apparatus for drying grain in which a plurality of conveyors are mounted one above the other. The discharge end of one conveyor feeds the input end of the next lower conveyor. The conveyors have a porous top surface and are vibrated to move the grain. Warm air is conveyed beneath the top conveyor and every other conveyor thereafter. Cool air is conveyed beneath the conveyor beneath the top conveyor and every other conveyor thereafter. The warm and cool air passes through the porous top surfaces of the conveyors. Thus the conveyors alternately heat and cool the grain to remove moisture to the desired level. The apparatus can be free standing or mounted as part of a combine or harvester.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: May 15, 2001
    Inventors: Steven C. Reed, Sr., Matthew G. Reed
  • Patent number: 6192598
    Abstract: A method and apparatus for disinfecting granular material using microwave energy in an applicator that mixes the material with air for consistent and effective insect mortality rates.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: February 27, 2001
    Assignee: Micro-Grain, Inc.
    Inventors: Steven L. Halverson, Timothy S. Bigelow
  • Patent number: 6163978
    Abstract: A seed corn dryer capable of being switched between a single pass mode and a dual path mode of operation. The invention includes an air supply unit adapted to delivery drying air to only one dryer plenum in a dual path mode and to both dryer plenums in a single pass mode. One air supply unit includes a supply upper plenum and a supply lower plenum with a closable air passage therebetween. The dryer includes a center plenum partitioned into upper and lower plenums, with a series of corn bins on either side. Each bin has an upper inside air door, a lower inside air door, a lower outside air door and an upper inside air door. In one single pass mode, air is forced into both upper and lower dryer plenums, then either up or down in a single pass through an individual bin, exiting to the outside. In one dual path mode, air is forced only through the upper dryer plenum, then downward through a first bin, through the lower plenum, upward through a second bin, exiting through an upper outside air door.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: December 26, 2000
    Inventor: Pat S. Hinner
  • Patent number: 6154979
    Abstract: Method and apparatus for the removal of liquid from particulate material by evaporation through the supply of heat, said heat being transferred substantially by superheated vapours or steam of the liquids existing in the particulate material, and where said method is executed in a substantially closed system. The particulate material is supplied continuously to a process chamber which is configured as an annual or partly annular chamber (1) which lies in a substantially horizontal manner, where the superheated vapours are introduced from below and up through openings (11) in a bottom (10) in the annular chamber, so that the particulate material is brought into movement by the superheated vapours, and such that a transport of the particulate material takes place through the annular chamber (1).
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: December 5, 2000
    Assignee: ASJ Holding ApS
    Inventor: Arne Sloth Jensen
  • Patent number: 6122838
    Abstract: A method and apparatus for drying grain which includes a method and apparatus for unloading the grain from a grain dryer of a type including spaced apart first and second walls for defining a passageway or grain column for directing grain flowing downwardly by gravity between the first and second walls. A substantially horizontal shelf is disposed below the outlet port of the grain confinement walls for receiving grain thereon from the grain column. A channel is disposed below the shelf for receiving grain which is pushed off of the shelf. A discharge port is disposed in the channel. A strip of material is disposed for moving along above the shelf for metering grain from the shelf to the channel as the strip moves along the shelf. A paddle is disposed for movement in the channel for pushing grain from the channel into the discharge port. The dryer also has a central air passage from top to bottom, which lends itself to being used for three mode drying, if desired.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: September 26, 2000
    Assignee: Beard Industries
    Inventor: Brent J. Bloemendaal
  • 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: 6092300
    Abstract: The invention relates to a process for the operation of a regenerator, hot and cold gas being repeatedly passed through a bulk material 4 with a maximum particle diameter D.sub.max which is received in the annular space 1 between a substantially cylindrical hot grid 3 and a cold grid 4 [sic] surrounding the latter, and at least one discharge opening 16 being provided in the bottom B of the annular space 1 for discharging the bulk material 4. To increase the service life of the regenerator, it is proposed according to the invention that a predetermined amount of bulk material 4 is discharged during or after the passing-through of hot gas, so that a compressive stress exerted by the bulk material 4 on the hot grid 3 and cold grid 4 [sic] is reduced.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: July 25, 2000
    Assignee: Applikations-und Technikzentrum fur Energieverfahrens-Umwelt und Stromungstechnik
    Inventors: Andres Emmel, Dragan Stevanovic, Hans-Georg Fassbinder