Axial Treated Material Feed Type Patents (Class 34/182)
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Patent number: 11937754Abstract: A dual-mode water inlet dishwasher includes a shell, an inner container, a spraying arm, a washing pump, a heating washing pump, and a respirator water tank which are provided in the shell. A water trough is provided in the inner container. A water inlet of the water trough is connected to the respirator water tank. A water outlet of the water trough is connected to the heating washing pump. The heating washing pump is connected to the spraying arm. The respirator water tank is provided with a respirator body and a water tank body. A tap water inlet, a water-tank water inlet, and a washing water port are provided on the respirator body or the water tank body. The tap water inlet is connected to tap water by means of a solenoid valve. The water-tank water inlet is connected to the water tank by means of a water pump.Type: GrantFiled: September 16, 2019Date of Patent: March 26, 2024Assignee: GUANGDONG JIENUO HOUSEHOLD APPLIANCES CO., LTD.Inventors: Jie Pu, Shuntian Yang, Jianhong Shi
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Patent number: 11912597Abstract: A sludge drying apparatus includes a waste fluid bath for storing a waste fluid containing a sludge, an extracting unit for extracting the sludge from the waste fluid stored in the waste fluid bath, a transfer belt for transferring the sludge extracted by the extracting unit, a drying unit for drying the sludge to be transferred by the transfer belt, and a recovering unit for recovering the sludge transferred by the transfer belt and dried by the drying unit. The recovering unit includes a roll brush provided adjacent to the air outlet so as to horizontally extend in the direction perpendicular to the direction of extension of the transfer belt, and a recovery box for recovering the sludge separated from the transfer belt by the roll brush.Type: GrantFiled: February 20, 2020Date of Patent: February 27, 2024Assignee: DISCO CORPORATIONInventors: Satoshi Sugiyama, Toshiyuki Sano, Miki Yoshida
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Patent number: 11498861Abstract: The invention relates to an apparatus (1) for processing a slurry containing organic components, such as biomass, having a water contents of at least 50%, comprising a heat exchanger (7) to heat the slurry and a reactor (8) to convert at least a part of the organic components in the slurry, wherein at least one of the heat exchanger (7) and the reactor (8) comprises one or more pipes (7A; 8A). At least one transport screw (15) is accommodated in the pipe (7A; 8A) or at least one of the pipes (7A; 8A).Type: GrantFiled: April 28, 2016Date of Patent: November 15, 2022Assignee: SCW Systems B.V.Inventors: Gerardus Cornelis Otto Bernard Essing, Douglas Scott Hendry
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Patent number: 11175093Abstract: Provided is a vacuum freeze-drying apparatus 1, having a drying device 3 provided with an inlet portion and an outlet portion and comprising a tubular member 31 formed of a tubular shape, a temperature adjusting means 30a to 30j provided in a plurality of regions 40a to 40j in a direction from the inlet portion to the outlet portion in a peripheral portion of the tubular member for adjusting a temperature of the plurality of regions in an outer surface of the tubular member, a temperature control unit 8 for independently controlling the temperature adjusting means, and a rotating portion 7 for rotating the tubular member, wherein the tubular member has a spiral transfer means 31a for transferring the frozen substance entering from the inlet portion sequentially to locations corresponding to the plurality of regions in the tubular member to continuously sublimate and dry the frozen substance.Type: GrantFiled: April 20, 2021Date of Patent: November 16, 2021Inventors: Shuji Morimoto, Makoto Takehara
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Patent number: 11143455Abstract: A system for drying wet food articles (such as produce) is disclosed herein. The system can comprise a turntable capable of rotating multiple barrel stations. The system can comprise various loading, drying, dumping, and cleaning positions, and the barrel stations can be rotated to each of these positions. The present disclosure also describes various methods for drying wet food articles utilizing such systems.Type: GrantFiled: September 10, 2019Date of Patent: October 12, 2021Inventor: Jesus R. Oropeza
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Patent number: 10974174Abstract: A separation device, such as a centrifugal dryer, for separating a mixture of a solid material and a fluid is described. The device has a housing having at least one housing inlet for supplying the mixture and at least one housing outlet for discharging the solid material or the fluid separated from the mixture. The device also has a rotor that is arranged within the housing and is mounted rotatably around a longitudinal axis. The rotor causes movement of the solid material in the direction of the longitudinal axis by rotating. The rotor has multiple rotor segments, which can be separated from each other.Type: GrantFiled: March 28, 2019Date of Patent: April 13, 2021Assignee: Nordson CorporationInventors: Nikolai Schnellbach, Bernd Bakenecker, Marius Wirz, Michael Schröer
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Patent number: 10690412Abstract: A fluidized bed system is a single unitary modular system that packages a circulation fan, a fluidized bed, and a dust collection system within a same structure. The structure is formed to include internal ducts to provide fluid communication between the circulation fan, the fluidized bed, and the dust collection system. The fan provides a flow of air via a pressure duct to the fluidized bed. Particulate is separated from particles included on the fluidized bed by the flow of air being uniformly distributed to the fluidized bed. Particulate separated in a disengagement area and suspended in the flow of air is conducted through a particulate clearance space surrounding the dust collection system. The particulate is captured by the dust collection system and conveyed to a location external to the system.Type: GrantFiled: February 19, 2018Date of Patent: June 23, 2020Assignee: Nous, LLCInventors: Phillip Alan Forsythe, Charles Ryan Mowery, James Trevor Reed, Christopher Eric Jones
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Patent number: 10443936Abstract: A system for drying wet food articles (such as produce) is disclosed herein. The system can comprise a turntable capable of rotating multiple barrel stations. The system can comprise various loading, drying, dumping, and cleaning positions, and the barrel stations can be rotated to each of these positions. The present disclosure also describes various methods for drying wet food articles utilizing such systems.Type: GrantFiled: February 15, 2017Date of Patent: October 15, 2019Inventor: Jesus R. Oropeza
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Patent number: 10018416Abstract: A system includes a multi-feeder assembly. The multi-feeder assembly includes a first solids feeder, a liquid removal section, and a second solids feeder. The first solids feeder is configured to receive a solids flow from an upstream system. The liquid removal section is configured to reduce an amount of liquid in the solids flow. The second solids feeder is configured to receive the solids flow in series with the first solids feeder and output the solids flow to a downstream system.Type: GrantFiled: December 4, 2012Date of Patent: July 10, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Thomas Frederick Leininger, John Saunders Stevenson
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Patent number: 9949437Abstract: A cooling system for a crop harvester. The cooling system includes a thermal transfer system configured to transfer heat from an engine of the crop harvester to air and crops passing through a crop chute of the crop harvester to cool the engine and dry crops passing through the crop chute.Type: GrantFiled: April 21, 2016Date of Patent: April 24, 2018Assignee: DENSO International America, Inc.Inventor: Patrick Powell
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Patent number: 9751065Abstract: A pelletizing device comprising a rotary drivable at least partly cylindrical die, wherein the cylindrical part comprises a multitude of radial openings for forming of pellets and at least one roller rotatable around a stationary shaft, for pressing of material to be pelletized through the radial openings in the die, wherein the roller is mounted to the corresponding stationary shaft by means of at least one roller bearing and wherein the pelletizing device comprises an oil circulation system for lubricating each of the roller bearings of each of the rollers with oil.Type: GrantFiled: February 26, 2015Date of Patent: September 5, 2017Assignee: CPM EUROPE B.V.Inventors: Viktor Benjamin Udink, Maurice Johan Marie Bindels
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Patent number: 8984762Abstract: The invention relates to a dryer for drying of garden waste, particularly of chopped lop and other bulk material, comprising an elongated lying container with a cross section which is at least partially round; the container comprises at its one end an inlet and at its other end an outlet for the material; the container wall is perforated at least over parts of its length; the perforations are connected to pressurized air; there are provided conveyer means which seize the material in the ascending quadrant of the container wall and transport the same upwardly over a certain length of path.Type: GrantFiled: February 18, 2010Date of Patent: March 24, 2015Assignee: Allgaier Werke GmbHInventors: Mathias Trojosky, Hermann Weiss
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Patent number: 8973285Abstract: The present invention provides grain-drying facilities which can effectively use the heat energy of a biomass combustion hot-air that has been generated in a biomass combustion furnace.Type: GrantFiled: March 17, 2011Date of Patent: March 10, 2015Assignee: Satake CorporationInventor: Hirota Fujitomo
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Publication number: 20150027039Abstract: The present invention relates to an apparatus and method for drying a biomass or organic material through one or more auger tubes that may be connected in series. Rotation of the augers drives the movement of the material longitudinally through the auger tubes. In addition, the one or more auger tubes are also heated by a hot liquid or water that may be circulated through a jacket(s) surrounding the one or more auger tubes, and a generally longitudinal flow of air or gas through the one or more auger tubes may be caused by operation of a fan or blower. The operation of a dryer apparatus of the present invention may also be monitored and controlled by a computer to optimize or improve drying conditions. Thus, one or more operational parameters of a dryer apparatus may be altered or controlled based on one or more measurements, such as temperature.Type: ApplicationFiled: November 22, 2013Publication date: January 29, 2015Inventors: Scott Laskowski, Timothy Baughman, Johann Duerichen, Donald Laskowski
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Patent number: 8567086Abstract: The inner space of a drying tank 4 is made up of a mixing and drying zone MZ to mix and dry supplied material 3 by swirling the material 3 upward onto rotor blades 5 and pressing the material centrifugally against a heated cylindrical inner surface of the tank wall 2, and a drying zone DZ beneath the mixing and drying zone MZ. An upper screw conveyer 15, connected to the upper part of the mixing and drying zone MZ transfers material 3 out of the drying tank 4. A lower screw conveyer 13, connected to the bottom of the mixing and drying zone MZ transfers material received from the upper conveyor 15 through a vertical transfer pipe 17 back into the drying tank 4 along with new material to be dried. A discharge screw conveyer 21 is connected to the drying zone DZ to discharge out dried material continuously.Type: GrantFiled: February 17, 2010Date of Patent: October 29, 2013Inventor: Masao Kanai
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Patent number: 8365430Abstract: A centrifugal dryer for the separation of pellet-like substances from process water including a housing, a rotor arranged in the housing and a screen surrounding the rotor at the peripheral side. The screen has at least one porous screen member which is placed in an arcuate manner around at least one screen carrier hoop and is releasably fastened thereto. The screen is composed of a plurality of screen members which mutually overlap in the peripheral direction and are clamped tight to the screen carrier hoop by one or more tension belts which wrap around the mutually overlapping screen members at the peripheral side.Type: GrantFiled: March 18, 2008Date of Patent: February 5, 2013Assignee: Gala Industries, Inc.Inventors: Juergen Veltel, Thomas Baaske, Markus Peters, Christoph Maesmanns
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Publication number: 20120317830Abstract: An improved hood assembly for controllably cooling extruded section members of aluminium and other metal materials at an output of an extruding line therefor, characterized in that said hood assembly comprises a plurality of air delivery spouts inclined according to angles varying from 20° to 60° with respect to a sliding longitudinal direction of said section member through said cooling line.Type: ApplicationFiled: June 18, 2012Publication date: December 20, 2012Applicant: EAGLE TECH S.r.l.Inventor: Guido Zambetti
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Patent number: 8220177Abstract: An embossed screen having raised deflector elements on the internal surface is provided for a centrifugal pellet dryer. The deflector screen is formed as an integral structure, eliminating the need for separate deflector components secured by fastening elements along with the associated risks such as loosening or separation of the strip and contaminate build-up between the strip and the screen. The embossed deflector screen effectively deflects the pellets back toward the rotor where the pellets are reengaged with rotor energy, resulting in increased dryer efficiency and flow rate. The embossed deflector screen also enhances the overall structural strength of the screen, reduces manufacturing costs and prevents pellet entrapment that can lead to contamination in future runs.Type: GrantFiled: April 15, 2008Date of Patent: July 17, 2012Assignee: Gala Industries, Inc.Inventor: David E. Bryan
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Patent number: 8166666Abstract: A compact gas dryer (100) comprises a primary heat exchanger (200) exchanging heat between hot, incoming, contaminated gaseous medium and outgoing dry, cool gaseous 5 medium, a secondary heat exchanger (300) exchanging heat between incoming cold gaseous medium from the primary heat exchanger (200) and a refrigerant, and a condense trap (400) trapping condensable matter in the cooled gaseous medium exiting the secondary heat exchanger (300). 10 Afterwards, the dry, cool gaseous medium exchanges heat with the incoming contaminated gaseous medium in the primary heat exchanger. The primary heat exchanger (200), the secondary heat exchanger (300) and the condense trap (400) are combined into a single unit (100).Type: GrantFiled: June 26, 2006Date of Patent: May 1, 2012Assignee: Swep International ABInventor: Björn Felgenhauer
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Publication number: 20090151187Abstract: A gypsum dryer/calciner includes a calcining space; a first pipe having an inlet connected to a source of hot gases and an outlet emerging in the calcining space; a second pipe having an inlet connected to a source of gypsum and an outlet emerging in the calcining space, the second pipe being concentric with the first pipe; and a force-feeding screw positioned at least partially in the second pipe, the screw carrying the gypsum along in the calcining space.Type: ApplicationFiled: November 11, 2008Publication date: June 18, 2009Applicant: LAFARGE PLATRESInventor: Charles Falinower
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Publication number: 20090126421Abstract: A supplemental clothes treating apparatus is disclosed. A supplemental clothes treating apparatus includes a housing which defines an exterior appearance thereof, the housing having an opening; a movable frame, where clothes are placed, installed at the housing, the movable frame being retractable via the opening; and a hot air supply device installed in the movable frame to supply hot air to the clothes.Type: ApplicationFiled: November 12, 2008Publication date: May 21, 2009Applicant: LG Electronics Inc.Inventors: Myung Shik Kim, Ho II Jeon, Jong Hee Han
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Patent number: 7513061Abstract: There has been achieved a sludge dehydrating processor with less mechanical operation and with satisfactory dehydrating efficiency and heating efficiency. In order to process and convert sludge including an organic substance into solid fertilizer, a heating treatment zone for feeding and sterilizing an object to be treated and a dehydrating treatment/retrieving zone for separating water from the object to be treated and retrieving a treated object are provided. In the heating treatment zone, induction heating for efficiently heating the object to be treated without rotating a kiln body is introduced. In the dehydrating treatment/retrieving zone, a vortex air current producing mechanism for efficiently drying the object to be treated without rotating a dehydrating treatment chamber is introduced.Type: GrantFiled: May 26, 2006Date of Patent: April 7, 2009Assignees: Dai-Ichi High Frequency Co., Ltd., Bapic IncorporatedInventors: Kotaro Hirayama, Alden D. Pritchard
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Patent number: 7024794Abstract: A centrifugal pellet dryer including a stationary cylindrical screen, a driven elevating rotor in said screen elevating wet pellets inside the screen and imparting radial forces to the wet pellets to impact them against the interior of the screen to enable moisture on the pellets to be separated and discharged through the screen, a housing enclosing the screen and rotor and including an inlet for a slurry of pellets, an outlet for dried pellets and an outlet for water removed from the pellets. The side walls of the housing are constructed of a plurality of relatively large, flat panels made of plastic sheet material are supported in a metal framework to attenuate noise of the dryer produced by rotation of the drier rotor and impact of the wet pellets against the screen. A dewaterer in advance of the dryer also has walls made of plastic sheet material.Type: GrantFiled: October 15, 2004Date of Patent: April 11, 2006Assignee: Gala IndustriesInventor: Jeffrey S. Mynes
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Patent number: 6868622Abstract: This invention provides a conveyor and tunnel oven, where the conveyor is continuous, the tunnel oven is gas fired, having its ignited and heated gases passed through a tubular system, being attracted by one or more blowers, to generate by conduction infrared energy to furnish curing to products passing along the continuous conveyor. A control system is provided for controlling the operating parameters such as conveyor speed, regulating emitted gas, the velocity generated by the blowers, and the capacity of the BTUs created, during operations of the oven.Type: GrantFiled: October 8, 2002Date of Patent: March 22, 2005Inventor: James Stephen Dillender
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Publication number: 20030177658Abstract: The invention relates to a device (1) for conveying bulk material, particularly, cement clinker (2), in a cement cooler (3). The invention device is essentially comprised of a number of grate bars (5) arranged one behind the other, which can be moved forward and backward by means of a common drive (7). The grate bars (5) each have a formation (11) through which, in a forward travel position (10), a cavity (14) is produced between the formation (11) and a protective layer (6). During return travel, the grate bar (5) can be retracted into said cavity (14) without an appreciable amount of bulk material (2) being conveyed counter to the direction of conveyance (9).Type: ApplicationFiled: May 9, 2003Publication date: September 25, 2003Inventor: Ulrich Suer
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Patent number: 6412428Abstract: A system for drying sludge includes a shaftless spiral feed screw for moving sludge through a drying chamber. An high energy inductor is located at a output of the drying chamber for drawing hot gases through the chamber to dry the sludge as it advances from the input end to the output end of the chamber. The high energy inductor also aspirates the dried sludge from the chamber. The drying system can be used in conjunction with a waste-to-energy furnace for incineration of sludge and municipal waste. In such an arrangement, the dried sludge can be aspirated from the drying chamber directly into a combustion zone of the furnace. Hot gases from the furnace can be used in drying the sludge.Type: GrantFiled: December 20, 2000Date of Patent: July 2, 2002Inventor: Vincent Promuto
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Patent number: 6367163Abstract: A hot air slurry dryer having a cylindrical housing with a central shaft rotatably mounted in the housing. Material to be dried moves from an upstream end of the housing to an outlet at a downstream end. A hot air inlet is connected to the upstream end of the housing preferably at an upstream end wall. A material inlet is open to the side wall of the housing downstream of the hot air inlet. The shaft carries structure for breaking up the moist material introduced into the housing and mixing it with the hot air. In a preferred embodiment a drum is carried by the shaft at the inlet end of the cylindrical housing. The drum carries a plurality of agitator blades that pass close by the interior surface of the side wall of the housing.Type: GrantFiled: March 6, 2000Date of Patent: April 9, 2002Inventor: William A. Luker
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Patent number: 6237244Abstract: A dryer for removing surface moisture from a pelletized product and more specifically a dryer which is constructed with dimensions enabling it to effectively centrifugally remove surface moisture from pellets of resin material received from an underwater pelletizer. The dryer is capable of operating at very low rates and easily cleaned with its overall size enabling it to be effectively used for small operations, especially laboratory applications.Type: GrantFiled: October 19, 1998Date of Patent: May 29, 2001Assignee: Gala Industries, Inc.Inventors: David E. Bryan, Carl M. Dudding
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Patent number: 6226889Abstract: The present invention relates to a method and apparatus for use in removing at least one volatile contaminant from contaminated material by using a rotary vacuum retort during high temperature and vacuum processing. The loading and unloading are performed in a manner that minimizes the introduction of low boiling point gases. The apparatus employs, in one preferred embodiment, elastomeric pinch valve airlocks to isolate the entire system between the airlocks and a vacuum generator. The apparatus employs, in another preferred embodiment, at least one material transfer element. Furthermore, the contaminated material may be dried in a dryer prior to introduction into the retort. Moreover, the decontaminated material can be cooled through a heat exchanger prior to discharge.Type: GrantFiled: March 7, 2000Date of Patent: May 8, 2001Assignee: SepraDyne CorporationInventors: Randy A. Aulbaugh, Gregory G. Hawk
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Patent number: 6199299Abstract: In a chisel-type convergence for a chip bin in a wood chip pulping process and system, an improvement in uniformity of discharge of the chips from a chips bin or the like is provided. The bin includes a conventional hollow substantially right circular cylindrical first, upper, body portion, a second, hollow transition, portion connected to the bottom of the first portion, and a third transition portion, below the second portion and above a metering device, such as a metering screw or a star-feeder. The third transition operates less than full of chips, and provides relief from chip compaction. The third transition portion may include stationary or movable baffles, and/or a metering screw may be provided which can pivot downwardly in order to minimize or eliminate the thrusting force against the bin or upper chips to facilitate discharge.Type: GrantFiled: April 6, 1998Date of Patent: March 13, 2001Assignee: Andritz-Ahlstrom Inc.Inventors: J. Robert Prough, Jerry R. Johanson
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Patent number: 6163978Abstract: 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: GrantFiled: April 16, 1998Date of Patent: December 26, 2000Inventor: Pat S. Hinner
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Patent number: 6164220Abstract: A device for combustion of granular material, for example wood flour pellets, chippings and the like, comprises a rotary solid fuel burner (1), air intake to the bumer, at least one conduit (18) for the supply of fuel and outlet (3) for combustion gases to a boiler part for heat transfer to water-cooled surfaces, for example. The rotary solid fuel burner is formed as a vessel with a rear wall, said outlet (3) for combustion gases and a jacket part between the rear wall and the outlet. A fuel feed pipe (18), which forms part of a fuel feed conduit, extends through the rear end wall, and an air admission pipe (19) surrounds the central fuel feed pipe at a distance from this, so that a space (20) which is ring-shaped in section is formed between the central fuel feed pipe (18) and the air admission pipe (19).Type: GrantFiled: September 16, 1999Date of Patent: December 26, 2000Assignee: Swedish Bioburner System AktiebolagInventor: Jan Magnusson
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Patent number: 6161307Abstract: The invention relates to a system for cooling and reducing fluoride emissions from a hot, spent anode butt removed from an electrolysis cell. The system comprises an elongated fluidised bed cooling chamber comprising particles of alumina and conveyor means for transporting a hot, spent anode butt through the fluidised bed. A lower air distributor is provided for injecting fluidising air into the chamber to create the fluidised bed and an upper air distributor is provided which is adapted to direct fluidised particles into contact with the top surface of the hot anode butt, whereby the fluidised bed surrounds the hot anode butt and serves to simultaneously uniformly cool the hot anode butt and significantly reduce fluoride emissions from the hot anode butt.Type: GrantFiled: October 8, 1999Date of Patent: December 19, 2000Assignee: Alcan International LimitedInventors: Thierry Bourgeois, Nigel Ian Steward, Jean-Paul Huni, Fran.cedilla.ois Tremblay, Jean Perron
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Patent number: 6128828Abstract: A drying machine includes a hot air blower, a housing divided horizontally into plural long chambers having an open upper side, a closed bottom and two longitudinal sides bored with through holes, a screw conveyor respectively positioned in each long chamber, and a motor to rotate all the screw conveyors, and a sending-out screw conveyor positioned on the bottom of the housing. Each screw conveyor has an inner screw and an outer screw twisting in opposite direction for conveying, squeezing, mixing and stirring material at the same time dried by hot air coming from the blower. Material falls down from a funnel on the upper side of the housing and gradually falling down through the through holes and an outlet in an end of the bottom of the highest long chamber and then into a second highest long chamber and so on to the lowest portion of the housing to be conveyed by the sending-out screw conveyor to an exit through which dried material falls down through for collected.Type: GrantFiled: July 27, 1999Date of Patent: October 10, 2000Inventor: Chao-Chun Wang
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Patent number: 6125549Abstract: A system for the thermal processing of material in a housing having an inlet for receipt of the materials and an outlet for the discharge of the material after thermal treatment. The heating of the materials is accomplished, at least in part, by contact of the materials with a particulate medium which has been preheated in a separate heating operation employing infrared radiant heaters. The housing includes a heating zone separate from the zone used for thermal processing of the materials with the separate heating zone including the infrared radiant heaters. The particulate medium is introduced to the heating zone and brought to a controlled temperature. The medium is then conveyed to the processing zone where it is admixed with the materials being thermally processed. A shrouded zone is located intermediate the processing and particulate medium heating zones. This zone comprises a section of reduced clearance thereby providing a gas and dust lock between the processing and heating zones.Type: GrantFiled: February 12, 1999Date of Patent: October 3, 2000Assignee: Hosokawa Bepex CorporationInventor: Ilya Pikus
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Patent number: 6105275Abstract: The present invention relates to a method and apparatus for use in continuously loading material to be treated into a rotary vacuum retort and continuously unloading one or more vapors or similar volatile substances and treated material out of the rotary vacuum retort during high temperature and high vacuum processing. The loading and unloading are performed in a manner that minimizes the introduction of low boiling point gases. The apparatus employs, in one preferred embodiment, elastomeric pinch valve airlocks to isolate the entire system between the airlocks and a vacuum generator. Furthermore, the material being treated may be dried in a dryer prior to introduction into the retort. Moreover, the processed material can be cooled through a heat exchanger to permit the use of a low temperature pinch valve airlock on the discharge end of the process.Type: GrantFiled: March 19, 1999Date of Patent: August 22, 2000Assignee: SepreDyne CorporationInventors: Randy A. Aulbaugh, Gregory G. Hawk
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Patent number: 6079118Abstract: A continuous drying system for flake-formed or granular solid, of which bottom inside surface is semi-cylindrical and arranged almost horizontally, comprises drying system main body having a supplying means of a drying object at one end thereof and having a discharging means at the other end thereof, and a coil-formed sending apparatus arranged rotatably inside the main body, and a bar-formed or blade-formed stirring member arranged between the sending apparatus transversely. The drying object is transferred by said coil-formed sending apparatus, and a part of the drying object is retreated while stirring by scooping up the drying object with the stirring member along the inside surface of the main body of the drying object. The transfer of the drying object is delayed in comparison with the rotation of the sending apparatus.Type: GrantFiled: January 22, 1999Date of Patent: June 27, 2000Inventor: Shin Kiyokawa
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Patent number: 6061924Abstract: A dehydrating apparatus includes a chamber for receiving wet material to be dehydrated. A rotatably-mounted agitator is provided with the chamber. The agitator is adapted to agitate material in the chamber when the agitator rotates in a first direction and convey the material out of the chamber when the agitator rotates in the other, second direction.Type: GrantFiled: March 28, 1997Date of Patent: May 16, 2000Assignee: Rubicon Development Co. L.L.C.Inventors: Danny R. Bolton, David L. Bigham
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Patent number: 5966832Abstract: An improved apparatus, and related method of operation, is described for rapidly drying large monoliths of glass, ceramic and/or composite material, under subcritical conditions, while minimizing the risk of cracking the monolith during the drying process. The apparatus incorporates a pressure chamber for carrying the monolith to be dried, with no significant limitation on the size of the monolith relative to the size of the chamber. The monolith is initially immersed in a suitable drying solvent, and the temperature of the pressure chamber is raised to a predetermined value below the solvent's critical temperature, which raises the pressure to a predetermined value, likewise below the solvent's critical pressure. At a selected time during the drying process the pressure chamber is connected to a diffusion chamber, to draw away and condense solvent vapor.Type: GrantFiled: February 25, 1999Date of Patent: October 19, 1999Assignee: Yazaki CorporationInventors: Fikret Kirkbir, Satyabrata Raychaudhuri, Douglas Meyers, Hideaki Murata
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Patent number: 5946815Abstract: An apparatus and method for roasting legumes such as soybeans to enhance their nutritional properties. Raw legumes are introduced to a roaster having an oven section and a steeping section downstream of the oven section. The raw legumes are heated to a selected roasting temperature in the oven section as they are moved through the oven section to and through the steeping section. Throughout the passage of the legumes through the oven and steeping sections the legumes are mixed continously.Type: GrantFiled: December 18, 1997Date of Patent: September 7, 1999Inventor: Clifford C. Wetzel
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Patent number: 5940982Abstract: A continuous flow particulate material dryer includes a base and a heating chamber extending upwards from a central location of the base for providing heated air to the dryer. A perforated inner wall structure extends upwardly from the base and surrounds the heating chamber. A perforated outer wall structure is spaced apart from the inner wall and extends upwardly from the base surrounding the inner wall. A main drying chamber is defined by the space between the inner and outer wall structures. A perforated partition separates the main drying chamber into an inner and an outer chamber. The partition restricts the flow of particulate material from the inner chamber and the outer chamber. An upward facing conical protrusion mounts above the heating chamber for dispersing the particulate matter evenly into both inner and outer chambers. A circular chamber having a rotatable auger therein is used to collect the particulate material from the base of the dryer.Type: GrantFiled: August 7, 1998Date of Patent: August 24, 1999Inventor: Norman L. Braun
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Patent number: 5869810Abstract: There is disclosed an impedance-heated furnace for processing a nonflowable but conveyable material at the processing temperature comprising a nonrotating shell having electrical-conducting properties, and heated to a processing temperature using electrical impedance as the heat source. The shell includes an inlet and an outlet and a conveyor means, which also may be heated by impedance, for transporting or carrying the material along or through the shell. The resulting solids and any generated or volatilized gases are recovered separately.Type: GrantFiled: October 29, 1996Date of Patent: February 9, 1999Assignee: Victor ReynoldsInventors: Victor R. Reynolds, Gary L. White
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Patent number: 5813138Abstract: An aerated belt conveyor system for conveying hot expanded minerals including a longitudinal power driven belt conveyor surrounded by an envelope is described herein. An exhauster creates an air flow in the envelope to aerate expanded mineral material conveyed by the power driven belt conveyor and cool the mineral material to an adequate bagging temperature.Type: GrantFiled: December 19, 1996Date of Patent: September 29, 1998Inventors: Richard Barabe, Yvan Boisvert
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Patent number: 5709035Abstract: A counter flow cooler in which feed material is fed into the top inlet of the cooler and dispersed into a plurality of cooling chambers. At the bottom of each cooling chamber is a discharge grid which will discharge feed material uniformly over the area of the cooling chamber. The discharge rate of this discharge grid can be adjusted to the desired throughput of the cooler. Air is drawn through the bottom of the discharge grid and passes up through the feed material in a counter flow manner. That is, while the product is passing down through the cooler, the air is passing up through the feed material, carrying away heat and possibly. A feed controller is used to selectively direct feed material into the plurality of cooling chambers. When a second batch of feed material is to be introduced into the cooler, feed material to the first cooling chamber is stopped and all the feed material is directed into the second cooling chamber.Type: GrantFiled: July 22, 1996Date of Patent: January 20, 1998Assignee: California Pellet Mill CompanyInventor: Donald M. Wilhelm
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Patent number: 5697168Abstract: Single or multi-screw indirect-heating screw conveyor desorbers having a heating gas guide enclosed by the screw shaft wall (single-wall screw shafts) or located between a screw shaft wall and an internal chamber wall (double-walled screw shafts). Predetermined amounts of cooling and diluting fluid may be added to a heating gas stream to control the maximum temperature thereof. Screw shaft support bearings and rotary drive components may be cooled, and conveyor wall and/or screw shaft surfaces (e.g.. screw flights and interflight surfaces) may be automatically cleaned during screw shaft rotation by hardened bits and/or breaker devices. Cleaning operations may also involve the interaction of two counter-rotating conveyor screw shafts having mutually interleaved and opposite-handed external flights.Type: GrantFiled: August 8, 1994Date of Patent: December 16, 1997Assignee: Separation and Recovery Systems, Inc.Inventors: Pierre Matthys, Philippe J. Matthys, Robert A. Shelden, Felix G. Marcelino, Michael Katko
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Patent number: 5664338Abstract: A horizontal cooler/dryer having a continuous traveling conveyor, the conveyor being a chain conveyor formed of a plurality of links adjoined in end-to-end relationship, each of the links being pivotally pinned at its ends to adjacent links; a housing about the conveyor, the housing having a cooling gas inlet, a gas exhaust, a product inlet through which material to be cooled may be deposited on the conveyor and a product outlet through which cooled material can be discharged; and a plurality of non-perforate material pans mounted to the conveyor in juxtaposed overlapping relationship to form a substantially continuous surface about the conveyor. The product bed is leveled by dragging the lower edge of a hollow pivoting quarter drum across the product. The leveling is produced by the weight of the quarter drum pivoting down against the product. Counter weights can be used to control the leveling pressure against the product to avoid crushing or other product damage.Type: GrantFiled: March 22, 1996Date of Patent: September 9, 1997Assignee: California Pellet Mill CompanyInventor: Kelsey C. Thom, Jr.
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Apparatus and process for drying a moist material dispersed or dispersible in a stream of drying gas
Patent number: 5647142Abstract: In an apparatus for drying a moist material in a stream of drying gas the residence time is increased by inserting one or more perforated plates, above which fluidized particle layers are created, and through which a portion of the drying gas and material to be dried are passed, whereas the remaining part of the drying gas and material is by-passed said perforated plates. Improved drying capacity, heat economy and operational flexibility and decreased risk for heat damage of the material to be dried are obtained.Type: GrantFiled: May 13, 1996Date of Patent: July 15, 1997Assignee: Niro A/SInventors: Poul Rasmus Andersen, Ove Emil Hansen -
Patent number: 5638606Abstract: Improvements in centrifugal pellet dryers and more particularly to improvements in the rotor structure which includes a shaft, pellet lifter assemblies and supporting spiders which support the pellet lifter assemblies from the shaft. Each spider is made of a one-piece plate laser cut for strength, balance and simplicity. Mounting of the pellet lifter assemblies on the spider, and the spider on the shaft, are configured for easy assembly and maintenance.Type: GrantFiled: March 6, 1996Date of Patent: June 17, 1997Assignee: Gala Industries, Inc.Inventors: David E. Bryan, Robert K. Crowder, Samuel F. Hannah
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Patent number: 5586396Abstract: Disclosed is an improvement in a drying apparatus comprising a cylindrical drying vessel, the inner wall surface of which makes up a heat-transmitting surface, a heat-generating means encircling the cylindrical drying vessel, and at least one rotating vane assembly rotatably fixed in the cylindrical drying vessel. The rotating vane assembly has vane sections, which leave between their circumferential edges and the heat-transmitting surface of the hollow cylinder an annular space small enough to allow wet material to cross and contact the heat-transmitting surface without falling therein. Each vane section extends obliquely upward in the direction which is opposite to the rotating direction, and the circumferential edge of each vane section extends less than 360 degrees as viewed from the top.Type: GrantFiled: August 8, 1995Date of Patent: December 24, 1996Inventor: Masao Kanai
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Patent number: 5566469Abstract: A thermal vaporization apparatus includes a cylindrical tube having two ends. A base is provided, with the tube being rotatable with respect to the base. A first drive mechanism applies rotating force to the tube. An auger having two ends extends through the tube, and a second drive mechanism applies rotating force to the auger. At least one gas-fired burner to heat the exterior of the tube while in rotation is provided. A feed mechanism for introducing wet material into the interior of the tube and exterior of the auger within the tube is also provided.Type: GrantFiled: July 18, 1995Date of Patent: October 22, 1996Assignee: Fen-Tech Environmental, Inc.Inventors: Danny R. Bolton, David L. Bigham