With Means To Vary Gas Or Vapor Flow Patents (Class 34/579)
-
Patent number: 9656915Abstract: An apparatus includes a reactor vessel containing a carbonaceous bed and having means for establishing an elevated temperature within the carbonaceous bed; and the reactor vessel also having one or more feed material inlets above the carbonaceous bed for depositing process material from outside the vessel onto the carbonaceous bed, one or more gas exhaust ports above the bed for exit of gaseous products from the vessel, and one or more slag ports at the bottom of the carbonaceous bed for exit of molten and vitreous material from the vessel; wherein the carbonaceous bed comprises bricks that contain carbon and are of varied size and shape of which at least 25% of the total carbon content of the bed comprises spent pot liner material from aluminum processing, and wherein the bricks further comprise at least one of: Portland cement, potassium silicate cement, or aluminum silicate cement.Type: GrantFiled: August 7, 2015Date of Patent: May 23, 2017Assignee: ALTER NRG CORP.Inventors: James Santoianni, Michael Erskine Heier, Aleksandr Gorodetsky, Stephanie Reese, Kent O. Hicks
-
Patent number: 8726536Abstract: 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: GrantFiled: October 8, 2010Date of Patent: May 20, 2014Assignee: Korea Institute of Energy ResearchInventors: 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: 8697156Abstract: Dried distiller's solubles is described. Methods for drying condensed distiller's solubles into dried distiller's solubles are presented. The methods may include introducing the condensed distiller's solubles into a drying gas stream and recovering dried distiller's solubles from the drying gas stream.Type: GrantFiled: April 4, 2011Date of Patent: April 15, 2014Assignee: Pulse Holdings, LLCInventors: Jeffrey L Tate, James A Rehkopf, David A Mirko
-
Publication number: 20140068964Abstract: A device for thermally treating a pourable plant product includes a receiving device configured to receive the pourable plant product and a gas supply channel configured to supply a heated gas to the receiving device. The gas supply channel is divided directly upstream of the receiving device, in a gas flow direction, into a first gas supply sub-channel and a second gas supply sub-channel which follow each other in a direction of gravity, and which are configured to supply the heated gas to the receiving device. A cross section of at least the first gas supply sub-channel is configured to be closed or reduced before the receiving device independently of the second gas supply sub-section so as to eliminate or reduce a volume of the heated gas to the receiving device via the first gas supply sub-channel.Type: ApplicationFiled: January 25, 2012Publication date: March 13, 2014Applicant: PROBAT-WERKE VON GIMBORN MASCHINENFABRIK GMBHInventors: Wim Abbing, Thomas Koziorowski, Karl-Heinz Proest, Heinrich Baumeister
-
Patent number: 8533974Abstract: The present disclosure is generally directed to systems that are used for reclaiming components of wellbore cuttings material. In one illustrative embodiment, a system is disclosed that includes, among other things, a dryer that is adapted to receive a drill cuttings mixture that includes drilling fluid and cuttings material, the dryer being further adapted to treat the drill cuttings mixture by drying the cuttings material below a preselected moisture content level. The system also includes a moisture sensor that is adapted to sense a moisture content of the cuttings material after it is dried by the dryer, and a cuttings reinjection system that is adapted to reinject the dried cuttings material into a well bore. Additionally, the system includes a conveyor system that is adapted to convey the dried cuttings material to the cuttings reinjection system, wherein the conveyor system includes, among other things, a positive pressure pneumatic conveying apparatus.Type: GrantFiled: October 23, 2012Date of Patent: September 17, 2013Assignee: Varco I/P, Inc.Inventor: George Alexander Burnett
-
Patent number: 8490292Abstract: The present inventions relate to pulse combustion dryer apparatus and associated methods. The pulse combustion dryer apparatus may include a combustor that defines a combustion chamber that is in fluid communication with a tailpipe passage defined by a tailpipe. An air inlet communicates air into the combustion chamber through an air inlet passage. A fluid diode disposed within the air inlet passage allows airflow into the combustion chamber through the air inlet passage, and may generally prevent backflow of heated combustion products from the combustion chamber through the air inlet passage.Type: GrantFiled: October 5, 2011Date of Patent: July 23, 2013Assignee: Pulse Holdings, LLCInventors: Marius Grobler, David A. Mirko, James Rehkopf
-
Publication number: 20130133222Abstract: The disclosures described herein provide for an apparatus suitable for fluidizing fuel. In one embodiment, a system includes a fluidization vessel. The fluidization vessel includes a first inlet configured to receive a particulate fuel and a round chamber comprising a first aerator, wherein the round chamber is fluidly coupled to the first inlet and is configured to receive the particulate fuel. The system further includes a first outlet fluidly coupled to the round chamber and configured to convey a fluidized particulate fuel outwardly from the round chamber, wherein the first aerator is configured to discharge a first fluid into an interior of the round chamber to fluidize the particulate fuel into the fluidized fuel.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Applicant: General Electric CompanyInventors: Anand Kumar, Satish Sambhaji Jadhav
-
Patent number: 8434242Abstract: The technology relates to spray dried plasma and methods of making the same. The method includes providing plasma to a spray drying apparatus, spray drying the plasma, at the spray drying apparatus, to form physiologically active plasma powder, the spray drying apparatus configured utilizing one or more parameters, and storing the physiologically active plasma powder.Type: GrantFiled: November 19, 2012Date of Patent: May 7, 2013Assignee: Velico Medical, Inc.Inventors: Dennis Brian Hubbard, Michael Haley
-
Publication number: 20130036625Abstract: An apparatus for drying pellets having a housing and a rotor with rotor blades that is arranged in the housing such that it can be driven in rotation, having a dewatering region with at least one dewatering screen with dewatering screen openings that are smaller in size than the pellets, so that the process fluid can be separated from the pellets by means of passage from a screen front to a screen rear, wherein an auxiliary blower is arranged such that an auxiliary airflow from it is imparted in the direction of the pellets' primary direction of movement through the housing.Type: ApplicationFiled: August 12, 2011Publication date: February 14, 2013Applicant: AUTOMATIK PLASTICS MACHINERY GMBHInventor: Reinhardt-Karsten Muerb
-
Patent number: 8256134Abstract: The apparatus and methods disclosed herein relate to the production of dried co-products from stillage produced by an ethanol production facility.Type: GrantFiled: June 25, 2008Date of Patent: September 4, 2012Assignee: Pulse Holdings LLCInventors: James A. Rehkopf, Jeffrey L. Tate, David A. Mirko
-
Publication number: 20120023771Abstract: The present inventions relate to pulse combustion dryer apparatus and associated methods. The pulse combustion dryer apparatus may include a combustor that defines a combustion chamber that is in fluid communication with a tailpipe passage defined by a tailpipe. An air inlet communicates air into the combustion chamber through an air inlet passage. A fluid diode disposed within the air inlet passage allows airflow into the combustion chamber through the air inlet passage, and may generally prevent backflow of heated combustion products from the combustion chamber through the air inlet passage.Type: ApplicationFiled: October 5, 2011Publication date: February 2, 2012Applicant: PULSE HOLDINGS LLCInventors: Marius Grobler, David A. Mirko, James A. Rehkopf
-
Patent number: 8037620Abstract: The present inventions relate to pulse combustion dryer apparatus and associated methods. The pulse combustion dryer apparatus may include a combustor that defines a combustion chamber that is in fluid communication with a tailpipe passage defined by a tailpipe. An air inlet communicates air into the combustion chamber through an air inlet passage. A fluid diode disposed within the air inlet passage allows airflow into the combustion chamber through the air inlet passage, and may generally prevent backflow of heated combustion products from the combustion chamber through the air inlet passage.Type: GrantFiled: July 20, 2007Date of Patent: October 18, 2011Assignee: Pulse Holdings LLCInventors: Marius Grobler, David A. Mirko, James A. Rehkopf
-
Patent number: 7937850Abstract: Dried distiller's solubles is described. Methods for drying condensed distiller's solubles into dried distiller's solubles are presented. The methods may include introducing the condensed distiller's solubles into a drying gas stream and recovering dried distiller's solubles from the drying gas stream.Type: GrantFiled: March 5, 2009Date of Patent: May 10, 2011Assignee: J. Jireh Holdings LLCInventors: Jeffrey L. Tate, James A. Rehkopf, David A. Mirko
-
Patent number: 7917018Abstract: Disclosed herein are wearable devices for dispensing insect repellents, fragrances, and/or other chemicals along the outside of the clothing of a human, to avoid the need to apply such chemicals directly to clothing or to human's skin. The devices have an on/off switch that automatically controls a shutter which enables and restricts air flow, while also controlling fan operation and covering of a use-up cue. The device also is designed to prevent fan operation when an impregnated slab is not present. Also disclosed are preferred refills for use with such devices.Type: GrantFiled: June 24, 2010Date of Patent: March 29, 2011Assignee: S.C. Johnson & Son, Inc.Inventors: Donald J. Schumacher, Raymund J. Alfaro, Dirk K. Nickel, Tyler D. Duston, Michael T. Hudak, Sean P. Kingston, Anne T. Maghasi, Kwamena Gyakye deGraft-Johnson
-
Publication number: 20090269477Abstract: Dried distiller's solubles is described. Methods for drying condensed distiller's solubles into dried distiller's solubles are presented. The methods may include introducing the condensed distiller's solubles into a drying gas stream and recovering dried distiller's solubles from the drying gas stream.Type: ApplicationFiled: March 5, 2009Publication date: October 29, 2009Inventors: Jeffrey L. Tate, James A. Rehkopf, David A. Mirko
-
Publication number: 20090019720Abstract: The present inventions relate to pulse combustion dryer apparatus and associated methods. The pulse combustion dryer apparatus may include a combustor that defines a combustion chamber that is in fluid communication with a tailpipe passage defined by a tailpipe. An air inlet communicates air into the combustion chamber through an air inlet passage. A fluid diode disposed within the air inlet passage allows airflow into the combustion chamber through the air inlet passage, and may generally prevent backflow of heated combustion products from the combustion chamber through the air inlet passage.Type: ApplicationFiled: July 20, 2007Publication date: January 22, 2009Inventors: Marius Grobler, David A. Mirko, James A. Rehkopf
-
Patent number: 7380348Abstract: The invention provides a pneumatic dewatering apparatus (1) for wet product. The apparatus (1) comprises essentially a cyclone chamber (2) connected to a centrifugal fan (3). Various vortex flow forming stations (6), each followed by a vortex shedding station (7), are mounted within the cyclone chamber (2). Tight centripetal vortices are formed and are then shed such that water is delivered out the cyclone chamber (2) into a sump (42).Type: GrantFiled: April 29, 2003Date of Patent: June 3, 2008Assignee: Solid Solutions LimitedInventor: Christopher Frederick Neilan Seebach
-
Patent number: 7168183Abstract: 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: GrantFiled: February 27, 2004Date of Patent: January 30, 2007Inventor: Herbert Hüttlin
-
Patent number: 6971188Abstract: An enhanced apparatus and method for cleaning, drying, and disinfecting brine shrimp eggs is provided. The apparatus may have a blower and a furnace that provide pressurized, dry air to a screening device. The screening device may include a vibrating screen designed to release detritus while retaining viable cysts. The dry air may convey the cysts upward and suspend them within a containment vessel. The containment vessel may have a lower, narrow section and an upper, wide section; the larger airflow velocity within the narrow section suspends the brine shrimp eggs while the remaining detritus moves upward, into the wide section, in which the airflow velocity is lower. The air suspension rapidly dries the cysts to maintain a high percentage of viable eggs. Ultraviolet lights disinfect the cysts within the narrow section. An extractor with a cyclone separator draws material from the wide section and removes viable eggs from the detritus.Type: GrantFiled: November 23, 2004Date of Patent: December 6, 2005Assignee: North American Brine Shrimp, L.L.C.Inventors: James Chesley, III, Samuel Chesley
-
Patent number: 6889450Abstract: 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: GrantFiled: May 29, 2003Date of Patent: May 10, 2005Assignee: Agra Air, Inc.Inventors: Jerry Laramore, John Clark
-
Patent number: 6748670Abstract: Method of drying a medium for producing a porous matrix from a solution, a paste, an extract, a granulated material or such, where a liquid inert agent is fed into a vessel (5) at controlled pressure and amount through a valve (7), transferring the pressurized liquid inert agent to a mixing vessel (4), said mixing vessel (4) also receiving the solution, such as paste, extract or granulated material, through an inlet valve (10), adjusting the pressure and temperature inside the mixing vessel (4) to desired levels by a release valve (6), upon complete mixing of the inert agent with the solution, the mixture is expanded into a porous matrix and injected into a drying circuit through a drying chamber (3), the matrix thereby being kept suspended in the drying chamber by the flowing drying medium, supplied by the blower (2), the matrix moisture being removed from the mixture through a heat exchanger coil comprising a first heat exchanger (11) where the water vapour is condensed and removed from the circuit and finaType: GrantFiled: August 3, 2001Date of Patent: June 15, 2004Assignee: DTech ASInventors: Ola Jonassen, Ingvald Strømmen, Per Arne Schieflo, Odilio Alves-Filho
-
Patent number: 6298579Abstract: 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: GrantFiled: June 20, 2000Date of Patent: October 9, 2001Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Noboru Ichitani, Isao Hayashi, Mikio Murao
-
Patent number: 6269553Abstract: In the case of a drying apparatus for the drying of bulk material, more especially synthetic resin granules or powder, the volume flow rate setting means (11) comprises at least two flow through off/on means, which are arranged in at least two duct branches (22), connected in parallel, of the gas supply duct (10) and are able to be switched over by the switching and regulation means (2) between an opened and a closed position so that the drying gas volume flow introduced into the receiving space (3) is set by the number and/or selection of the opened flow off/on means.Type: GrantFiled: October 20, 1999Date of Patent: August 7, 2001Inventor: Klaus Wilhelm
-
Patent number: 6253465Abstract: 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: GrantFiled: June 28, 2000Date of Patent: July 3, 2001Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Noboru Ichitani, Isao Hayashi, Mikio Murao
-
Patent number: 6148540Abstract: The present invention provides a particulate drying method and drying apparatus, which can disperse particulates in the drying apparatus, prolong the particulate residence time, and improve the drying conditions, while retaining the advantages of conventional flash dryers.Type: GrantFiled: March 18, 1999Date of Patent: November 21, 2000Assignee: Nara Machinery Co., Ltd.Inventors: Yukimasa Ohmura, Takeshi Kato, Kenji Ono, Atsushi Omachi
-
Patent number: 6085440Abstract: A process and an apparatus for drying of a material in the form of a paste or a filter cake in a spin flash dryer. Particles are separated by a classifier (6) in the chamber (1) in such a way that oversize fraction is withheld in the chamber (1) and the desired fraction is removed (3, 9). A possible undesired undersize fraction is strained off and recycled (4, 10, 11) externally back to the dryer chamber (1). The spent drying gas is recycled to the dryer chamber (1). In either, the energy in the spent drying gas may be made use of in a heat exchanger and there is no or only little emission to the environment. Products preferably dried according to the invention are fruit and beet pulps, destillers residues, pesticides, pigments, dyes, ceramics, active coal, sludge and zeolites.Type: GrantFiled: July 15, 1998Date of Patent: July 11, 2000Assignee: APV Anhydro ASInventor: Jens Getler
-
Patent number: 5865993Abstract: A filter centrifuge includes a centrifuge drum having a solids removal opening for solids collected in the centrifuge drum. A solids drying housing into which the solids removal opening opens is provided. The solids drying housing has a sieve bottom, a gas inlet for introducing a drying gas, and a gas outlet for removing the drying gas.Type: GrantFiled: August 29, 1997Date of Patent: February 2, 1999Inventor: Heinz-Jurgen Wienicke
-
Patent number: 5842289Abstract: The present invention is directed to drying and heating processes and to an apparatus incorporating a pulse combustion device that can be used in a drying system or in a heating system. In general, the apparatus includes a pulse combustion device for the combustion of a fuel to produce a pulsating flow of combustion products and an acoustic pressure wave. The pulse combustion device has a combustion chamber connected to at least one resonance tube. A resonance chamber surrounds at least a portion of the pulse combustion device and includes a nozzle downstream from the resonance tube. The nozzle accelerates the combustion products flowing therethrough and creates a pulsating velocity head. In a drying system, the nozzle exits into a drying chamber where the combustion products contact a feed stream.Type: GrantFiled: February 20, 1997Date of Patent: December 1, 1998Assignee: Manufacturing and Technology Conversion International, Inc.Inventors: Ravi Chandran, Momtaz N. Mansour
-
Patent number: 5685640Abstract: A method for dosing and particularly for mixing substances, particularly for mixing at least one granular or powdery solid matter with a liquid. A first substance, particularly the granular or powdery solid matter is liquidized by means of a gas fed continuously or pulsatingly, and after that this homogenized gas/matter mixture is brought together in a time stable, dosed manner and mixed with a second substance, particularly a liquid. For dosing the homogenized gas/matter mixture, there is additionally supplied to it gas prior to the mixing with the second substance, with this gas being supplied to the gas/matter stream in a sheathing way and parallel to its direction of flow.Type: GrantFiled: July 8, 1996Date of Patent: November 11, 1997Assignee: Buhler AGInventors: Frank Goedicke, Wilhelm Herzmann, Arthur Ruf
-
Patent number: 5637336Abstract: A process and apparatus for the drying or kilning of malt in a substantially continuous operation. The malt is transported through one or more separate drying zones by means of fluid bed dryer units at which time tempered or conditioned air at a predetermined temperature and moisture content is passed through the malt to effect a drying of the malt. The rate of malt movement through the drying zones is varied according to the moisture content of the malt at predetermined points in its travel whereby to acheive a desired drying rate and moisture content in the malt as it travels through the various drying zones. Sulfur dioxide gas is selectively infused with the air in the drying zones to minimize carcinogens within the malt. Optional treatments are provided for the malt as it passes through the drying zones, including subjecting the malt to a vacuum to facilitate moisture removal and to effect a sanitizing of the malt.Type: GrantFiled: April 29, 1994Date of Patent: June 10, 1997Inventors: James R. Kannenberg, Bernard Fulayter
-
Patent number: 5595001Abstract: 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: GrantFiled: May 25, 1995Date of Patent: January 21, 1997Assignee: DeGussa AktiengesellschaftInventors: Rudiger Schutte, Alexander Ruhs, Claas-Jurgen Klasen, Hans-Christian Alt
-
Patent number: 5443539Abstract: This invention relates to a dryer for uniform drying of moisture laden particulate material. The dryer comprises a substantially vertical tower having a top, a bottom, side walls, a moist material inlet, a moist material distribution section below the inlet, a drying section below the distribution section and a cooling section below the drying section. The drying section contains a heated air inlet and air exhaust assemblies, wherein the air exhaust assemblies are formed from a plurality of discharge chambers extending horizontally across the tower between the side walls for flow of particulate material therebetween. Each discharge chamber contains at least one horizontally disposed exhaust tubular member having an aperture in the lower portion of the tubular member for exhausting air. Each discharge chamber also contains at least one aperture in the upper portion thereof for receiving air.Type: GrantFiled: September 8, 1994Date of Patent: August 22, 1995Inventor: Christianus M. T. Westelaken
-
Patent number: 5428907Abstract: A downcomer including a tubular member oriented vertically and extending downwardly from a fluidized grid and including a lower portion provided with an inclined opening formed at a first angle with respect to the tubular member, and a flapper valve including an upper portion and a lower portion formed at a second angle with respect to the upper valve portion, the upper portion of the flapper valve is mounted pivotally to the tubular member at a position to normally place the lower portion of the flapper valve in engagement with and closing the inclined opening.Type: GrantFiled: August 3, 1994Date of Patent: July 4, 1995Assignee: NOXSO CorporationInventors: John L. Haslbeck, Carroll H. Sherman, Scott M. Harkins
-
Patent number: 5422080Abstract: A biased air distribution grid is used to promote solids entrainment and dense bed internal mixing for the bed material of a fluidized bed reactor. The air distribution grid distributes air at a high velocity zone having a velocity ranging from 11 to 50 feet per second and a low velocity zone having a velocity ranging from 3 to 10 feet per second. The high velocity zone and the low velocity zone provide an improved lateral mixing for the reactor.Type: GrantFiled: March 9, 1994Date of Patent: June 6, 1995Assignee: Tampella Power CorporationInventors: Brian T. Sinn, Song Wu, Michael G. Alliston
-
Patent number: 5395596Abstract: An apparatus and method of operating a fluidized bed reactor for combusting refuse derived fuel is disclosed. The reactor includes a fluidized furnace section 30 and stripper/cooler section 80. A downwardly sloping grid 28 extends across the furnace section 30 and stripper/cooler section 80 to a drain 78 in the stripper/cooler section 80, and directional nozzles 38 disposed in the grid fluidize the beds in the furnace section 30 and stripper/cooler section 80 and forcibly convey relatively large particulate material across the grid 28, through the furnace section 30 and stripper/cooler section 80, and to the drain 78 for disposal. A refractory layer 36 is provided along the grid 28 surface to reduce the height of the nozzles 38 within the furnace section 30, thereby helping to prevent relatively large particulate material from becoming entangled with or stuck to the nozzles 38.Type: GrantFiled: May 11, 1993Date of Patent: March 7, 1995Assignee: Foster Wheeler Energy CorporationInventors: Justin P. Winkin, Walter R. Campbell, Jr., Stephen J. Goidich, John Tang, Iqbal F. Abdulally, John W. Phalen
-
Patent number: 5343631Abstract: A process and apparatus for cooling coal dried in a fluid bed reactor are disclosed in which heated dried coal is separated into coarser and finer fractions and the coarser and finer fractions are separately cooled.Type: GrantFiled: February 3, 1993Date of Patent: September 6, 1994Assignee: Amax Coal West, Inc.Inventors: Michael W. Shackelford, Robert G. Bauer, George W. Land
-
Patent number: 5308585Abstract: Hot solids coming from a fluidized bed reactor are passed through the cooling apparatus and at least in part are recycled to the fluidized bed reactor. In the cooling apparatus the hot solids flow first through a first fluidized bed and then flow downwardly through a gas-collecting space to a second fluidized bed, which is provided with cooling coils and in which the solids flow downwardly to a solids transfer passage and are then raised through a third fluidized bed to a discharge line. The system is controlled to cause solids coming from the first fluidized bed to flow through the gas-collecting space directly to the discharge line.Type: GrantFiled: December 29, 1992Date of Patent: May 3, 1994Assignee: Metallgesellschaft AktiengesellschaftInventors: Michael Stroder, Johannes Albrecht, Martin Hirsch, Rainer Reimert, Wladyslaw Lewandowski, Rudolf Kral