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公开(公告)号：US11815263B2
公开(公告)日：2023-11-14
申请号：US17036174
申请日：2020-09-29
发明人： Gyeong Mo Nam
CPC分类号： F23B40/02 , F23K3/02 , F23K2203/006 , F23K2203/008
摘要： A boiler facility includes first and second fuel transfer apparatuses for transporting fine particulate fuel to a combustor. A first fuel transfer apparatus includes a main body and a diffuser. The main body has a flow space through which fuel is transferred and an inner surface that defines the flow space of the main body and includes a lower inner surface that extends obliquely downward. The diffuser is installed at a downstream end of the main body, the diffuser having a flow space through which fuel is transferred and an inner surface that defines the flow space of the first diffuser and includes a lower inner surface that extends obliquely upward. A second fuel transfer apparatus includes a transfer pipe having a flow channel, a second diffuser installed along the inner circumferential surface of the transfer pipe, and a guide installed in the second diffuser and inclined downward.
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公开(公告)号：US11781751B2
公开(公告)日：2023-10-10
申请号：US16952737
申请日：2020-11-19
CPC分类号： F23N1/02 , F23B1/34 , F23B7/007 , F23K3/02 , F23K2203/201 , F23K2900/01041 , F23N2239/02 , F23N2241/04
摘要： The present disclosure is directed to systems and methods for high flame temperature oxy-combustion that enables the capture of CO2 cost effectively. One part of the presently disclosed subject matter comprises an annular shroud burner which utilizes a supply of undiluted oxygen and minimal flue gas recycle to generate a high flame temperature to maximize efficiency. The annular shroud burner may deliver oxygen into a combustion zone where mixing of the oxygen and a stream of fuel occurs. Flue gas recycled from the exit of the combustion system serves the dual purpose of conveying the coal into the reaction zone, as well as providing local cooling and protection from high incident heat fluxes through the novel shroud cooling design. The annular shroud burner may be configured to produce an axial jet flame that controls the rate of mixing of oxygen and fuel, thereby extending the heat release. Oxygen and coal may be mixed in a ratio such that peak flame temperatures exceed 4,500° F. (2,482° C.) while the flow of recycled flue gas is regulated to control flame temperature and protect burner components and near-burner surfaces.
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公开(公告)号：US20230141851A1
公开(公告)日：2023-05-11
申请号：US17918248
申请日：2021-04-12
CPC分类号： F23B99/00 , H05B6/10 , H05B6/06 , F23Q13/00 , F23K3/02 , F23B2900/00003 , F23K2203/008
摘要： A system and method for inductive heating of dispersed metallic particles is provided. The method includes: providing a particle-laden flow comprising a carrier phase comprising a carrier fluid and a dispersed phase comprising the dispersed metallic particles; exposing the dispersed metallic particles to a magnetic field for heating the dispersed metallic particles via at least one of hysteresis and Joules heating mechanisms; inductively heating the dispersed metallic particles in the particle-laden flow via the magnetic field; and controlling a flow configuration of the particle-laden flow by adjusting a flow parameter, the flow parameter being any one or more of an induction heating timescale, a particle thermal timescale, a heat diffusion in the carrier phase, and a particle clustering of the dispersed metallic particles.
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公开(公告)号：US10976049B2
公开(公告)日：2021-04-13
申请号：US16362140
申请日：2019-03-22
发明人： Frederic Vitse , Carl D. Edberg , Steven A. Unker
摘要： A method of operating a furnace having a firing system is disclosed. The method includes providing a solid fuel to a sieve; separating the fuel into a portion and a second portion; providing a first portion of a flue gas to a first fuel dryer comprising a first duct; providing the first portion of fuel to the first duct, and drying the first portion of fuel therein; conveying the first portion of fuel through the first duct to the furnace; burning the first portion of fuel with firing system; conveying the second portion of fuel and a second portion of the flue gas to a second fuel dryer in a lower portion of the furnace, providing the second portion of fuel to a mill; pulverizing the second portion of fuel with the mill; conveying the second portion of fuel to the furnace; and burning the second portion of fuel.
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公开(公告)号：US10773261B2
公开(公告)日：2020-09-15
申请号：US15055978
申请日：2016-02-29
摘要： A deflector ring includes a generally annular body, and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the annular body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a turret positionable above the deflector ring.
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公开(公告)号：US10603673B2
公开(公告)日：2020-03-31
申请号：US15528253
申请日：2015-08-24
发明人： Shinji Matsumoto , Takuichiro Daimaru , Kenichi Arima , Taku Miyazaki , Kazushi Fukui , Hiroyuki Kobayashi
摘要： Provided is a solid fuel pulverizing device (100) provided with: a ventilation unit (30) configured to ventilate an interior of a housing (11) with primary air for supplying a solid fuel pulverized by a roller (13) to a classifier (16); a pressure detector (50) configured to detect an internal pressure of the housing (11) relative to a reference pressure; a flow rate detector (60) configured to detect a flow rate of the primary air blown into the interior of the housing (11) by the ventilation unit (30); and a controller (40) configured to perform control and transition the solid fuel pulverizing device (100) to a stopped state upon the internal pressure detected by the pressure detector (50) being a predetermined pressure or higher and the flow rate of the primary air detected by the flow rate detector (60) being a predetermined flow rate or less.
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7.发明申请公开(公告)号：US20190039010A1
公开(公告)日：2019-02-07
申请号：US16076520
申请日：2017-08-28
摘要： The present invention relates to a self-powered time sharing reaction system and method for organic materials pyrolysis and combustion. The system comprises a time sharing reactor for pyrolysis and combustion, a feeder, a recovery apparatus for pyrolysis volatility products and a flue gas purifier. The whole process mainly consists of two time sharing stages of pyrolysis and combustion: organic materials are sent into the time sharing reactor for pyrolysis and combustion, and solid thermal carrier rapidly heats the organic materials and the pyrolysis reaction takes place. The produced pyrolysis volatility products enter the recovery apparatus for the recycling of the pyrolysis gas and pyrolysis oil; when the pyrolysis reaction is over, fill air into the time sharing reactor for pyrolysis and combustion to combust with the rest of the pyrolysis volatility products and the pyrolysis residue in the reactor. The heat produced during the combustion heats the solid thermal carrier, the flue gas is released after being purified, the heated solid thermal carrier is left in the time sharing reactor for pyrolysis and combustion to provide energy for the next organic materials pyrolysis. The process is thus repeated. The system has the advantages of cascade utilization of energy, short time of pyrolysis reaction and high efficiency of heat transfer.
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8.发明授权公开(公告)号：US10024535B2
公开(公告)日：2018-07-17
申请号：US14271095
申请日：2014-05-06
申请人： IHI Corporation
发明人： Toru Ishii
摘要： In an oxyfuel combustion boiler system, nitrogen gas separated by an air separation unit (ASU) is supplied as carrier gas to a pulverizer for drying and pulverization of fuel. A fluid mixture of the nitrogen gas from the pulverizer with pulverized fuel is supplied to a powder separation device where the pulverized fuel is separated. The separated pulverized fuel is mixed with the primary recirculated flue gas and supplied to a burner.
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公开(公告)号：US09758319B2
公开(公告)日：2017-09-12
申请号：US14724917
申请日：2015-05-29
申请人： Carl D. Celella
发明人： Carl D. Celella
摘要： A vacuum operated wood pellet management apparatus, systems and methods thereof, capable of handling, transferring, dispensing and filtering wood pellets. The pellet management apparatus and systems comprising a housing having a motor and a vacuum fan, a power supply, wherein the power supply controls an output of the motor, a pellet chamber connected to the housing, wherein the pellet chamber includes an inlet port configured to receive a plurality of wood pellets from a source of wood pellets and an outlet port regulated by a self-closing hinge.
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公开(公告)号：US09746179B2
公开(公告)日：2017-08-29
申请号：US13835768
申请日：2013-03-15
发明人： Peter Stegelitz
CPC分类号： F23N1/022 , F23C2202/10 , F23K1/00 , F23K3/00 , F23K3/02 , F23K2201/103
摘要： Disclosed herein is a coal fed power generation system comprising a mill in fluid communication with a furnace; where the mill is operative to pulverize coal and to ventilate the coal; where the furnace contains more than one burner or burner nozzles; where the burner or burner nozzles are operative to receive the coal from the mill and combust it in the furnace; and a plurality of flow control devices; where at least one flow control device is in fluid communication with the mill and with the burner or burner nozzle; and where the flow control device that is in fluid communication with the mill and with the burners or burner nozzles is closed to prevent fluid communication between the mill and the furnace during the operation of the furnace.
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