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US20100275824A1 - Biomass center air jet burner - Google Patents

Biomass center air jet burner Download PDF

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Publication number
US20100275824A1
US20100275824A1 US12/766,991 US76699110A US2010275824A1 US 20100275824 A1 US20100275824 A1 US 20100275824A1 US 76699110 A US76699110 A US 76699110A US 2010275824 A1 US2010275824 A1 US 2010275824A1
Authority
US
United States
Prior art keywords
biomass
core
burner
nozzle
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/766,991
Other languages
English (en)
Inventor
Albert D LaRue
John E. Monacelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babcock and Wilcox Power Generation Group Inc
Original Assignee
Babcock and Wilcox Power Generation Group Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Babcock and Wilcox Power Generation Group Inc filed Critical Babcock and Wilcox Power Generation Group Inc
Priority to US12/766,991 priority Critical patent/US20100275824A1/en
Priority to RU2010116575/06A priority patent/RU2010116575A/ru
Assigned to BABCOCK & WILCOX POWER GENERATION GROUP, INC. reassignment BABCOCK & WILCOX POWER GENERATION GROUP, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LARUE, ALBERT D., MONACELLI, JOHN E.
Priority to TW099113507A priority patent/TW201105907A/zh
Priority to ZA2010/02947A priority patent/ZA201002947B/en
Priority to BG10110642A priority patent/BG110642A/bg
Priority to CA2701967A priority patent/CA2701967A1/en
Priority to AU2010201710A priority patent/AU2010201710B8/en
Priority to MX2010004681A priority patent/MX2010004681A/es
Priority to CL2010000425A priority patent/CL2010000425A1/es
Priority to CO10050931A priority patent/CO6330169A1/es
Priority to ARP100101457A priority patent/AR076502A1/es
Priority to CN201010214341.0A priority patent/CN101881439B/zh
Priority to PL10161503T priority patent/PL2249081T3/pl
Priority to KR1020100039834A priority patent/KR101600815B1/ko
Priority to EP10161503.7A priority patent/EP2249081B1/en
Priority to BRPI1001478-0A priority patent/BRPI1001478A2/pt
Priority to JP2010105051A priority patent/JP2010261707A/ja
Assigned to BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT reassignment BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Assignors: BABCOCK & WILCOX POWER GENERATION GROUP, INC. (F.K.A. THE BABCOCK & WILCOX COMPANY)
Publication of US20100275824A1 publication Critical patent/US20100275824A1/en
Priority to NZ596441A priority patent/NZ596441A/xx
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F23C7/004—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion using vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/20—Burner staging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/06043—Burner staging, i.e. radially stratified flame core burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste

Definitions

  • the present invention relates generally to the field of industrial burner apparatuses for performing combustion functions for power generation.
  • biomass describes a wide range of organic matter derived from diverse living, or recently-living organisms, such as grasses and wood products.
  • Sources of biomass include trees, shrubs, bushes, residual vegetation from harvesting grains and vegetables.
  • Biomass is commonly plant matter harvested to generate electricity or produce heat.
  • Biomass may also include biodegradable wastes of organic origin that can be burned as fuel.
  • Biomass differs from fossil fuels, which are hydrocarbons found within the top layer of the Earth's crust. Common examples of fossil fuels include coal and oil. Unlike fossil fuels, biomass fuels are generally considered CO 2 neutral and renewable resources, since CO 2 generated from biomass combustion can be removed from the atmosphere by the plants that provide the biomass.
  • biomass fuels for power generation have historically been utilized as a primary or auxiliary fuel in stoker and fluid bed style boilers. Such boilers do not rely on burners thereby enabling significantly higher furnace residence time for combustion and consequently have less stringent fuel preparation requirements.
  • Pulverized coal firing is the primary means of suspension firing in the power generation industry.
  • coal is mechanically pulverized into fine particles.
  • the particles are then subsequently conveyed via suspension in a primary air stream to a burner, wherein the burner ejects the air/fuel mixture in a furnace for combustion.
  • Residence times are nominally 1-2 seconds, which is normally sufficient for complete pulverized coal combustion with proper particle sizing.
  • Biomass firing in pulverized coal-fired boilers is becoming more widespread as a strategy for reducing greenhouse gases.
  • Firing biomass fuels faces many technical challenges. As compared to bituminous coal, biomass fuels have significantly lower heating values and a higher concentration of volatile matter. Heating value is inversely proportional to moisture content, such that it amounts to 25% to 75% that of a typical bituminous coal. Biomass moisture will often be reduced prior to firing for material handling reasons and to improve process efficiency and capacity. Nevertheless, firing biomass in place of coal requires considerably more fuel mass to achieve a comparable heat output. Further, while the highly-volatile nature of biomass makes the fuel inherently easy to burn, the high moisture content can delay ignition. Delayed ignition is especially undesirable in suspension firing,
  • biomass fuels if that biomass is not processed to the same particle size as pulverized coal.
  • the larger volume of the biomass thus requires quick ignition and rapid combustion to enable use of biomass in furnaces designed for pulverized coal firing.
  • biomass co-firing One known technique of utilizing biomass in suspension firing is biomass co-firing.
  • biomass particulate is combined with pulverized coal and primary air in a single stream.
  • the combined stream is then introduced into the furnace.
  • This technique is however limited in practicality due to the resulting burner nozzle velocity necessary to maintain both types of particles in suspension. Excessive burner nozzle velocity results in flame instability, delayed ignition, and poor combustion performance.
  • inventions of the present invention provide a novel combustion apparatus. More specifically, embodiments of the present invention provide a combustion apparatus capable of firing biomass fuel and alternating between biomass and coal firing, as needed, and/or combusting a combination of coal and biomass fuels concurrently.
  • Embodiments of the present invention extend the capability of prior art burners.
  • U.S. Pat. No. 7,430,970 to LaRue et al. ('970 patent), is hereby incorporated into the by reference in the entirety.
  • the present invention is an improvement upon prior art burners by providing a novel device for combusting renewable fuels, including, but not limited to, biomass.
  • Embodiments of the present invention provide a superior method and apparatus for co-firing biomass in combination with pulverized coal.
  • a combustion apparatus capable of firing biomass fuel including a burner assembly which includes a biomass nozzle concentrically surrounded by a core air zone and extending axially along the length of the core air zone, the burner assembly residing within a windbox, the windbox being attached to a furnace of a boiler, and the burner assembly being connected to the furnace by a burner throat, through which air and fuel supplied to the burner assembly are emitted into the furnace.
  • the apparatus includes a forced draft fan providing a first supply of air to the windbox, a core air duct, enclosing the core air zone, for receiving a core portion of the first supply of air, the core air duct having a core damper for regulating the core portion entering the core air duct, a core nozzle for receiving the core portion from said core air duct, the core nozzle delivering said core portion to said burner throat, a burner elbow for receiving pulverized coal and a second supply of air, the pulverized coal and said second supply of air continuing through a coal nozzle in an annulus formed between the core nozzle and the coal nozzle, the core portion serving to accelerate ignition of pulverized coal by contacting an inner cylinder of a coal jet leaving the coal nozzle, the core portion also serving to accelerate combustion.
  • FIG. 1 is a schematic side elevation view of an embodiment of the present invention.
  • FIG. 2 is a schematic side elevation view of an alternative embodiment of the present invention.
  • FIG. 3 is a schematic side elevation view of an alternative embodiment of the present invention.
  • FIG. 4 is a schematic cross sectional view of an embodiment of the present invention which identifies the concentric zones of the present invention.
  • FIG. 1 shows a burner assembly 1 residing within windbox 2 , which is attached to the furnace 3 of a boiler (not shown).
  • Secondary air 22 is provided to windbox 2 by a forced draft fan (not shown) and heated by an air preheater (not shown).
  • the burner assembly 1 is connected to furnace 3 by burner throat 4 , through which air and fuel supplied to the burner assembly 1 are emitted into the furnace 3 .
  • a portion of the secondary air 22 constitutes core air 5 .
  • Core air 5 enters core air duct 6 and is regulated by core air damper 7 .
  • Core air 5 continues through the burner assembly 1 through core nozzle 8 , exiting through the burner throat 4 .
  • Secondary air 22 is also supplied to the burner assembly (designated as secondary air to the burner assembly 9 ). Secondary air 22 enters the burner assembly 1 and travels through parallel flow paths of the inner air zone 10 and outer air zone 11 . Swirl vanes in these zones serve to swirl secondary air 22 to facilitate ignition and combustion of secondary air 22 contacting the pulverized coal stream.
  • An air separation vane 12 at the exit of outer zone 11 acts to increase the size of an internal recirculation zone (IRZ) formed by resultant aerodynamics.
  • Pulverized coal and primary air 13 enter burner elbow 14 and continue through coal nozzle 15 , in the annulus formed between core nozzle 8 and coal nozzle 15 .
  • the core air 5 serves to accelerate ignition of pulverized coal by contacting the inner cylinder of the coal jet (not shown) leaving the coal nozzle 15 ; and serves to accelerate combustion by a “bellows effect” supplying air to the center of the flame.
  • LaRue '970 provides a detailed discussion on the accelerated ignition relating to core air.
  • the burner assembly 1 may be operated in combination with an over-fire-air (“OFA”) system (not shown).
  • OFA over-fire-air
  • a portion of the secondary air 22 supplied to the furnace for combustion is supplied to the OFA system, such that the total amount of air supplied to the burner assembly 1 is less than theoretical air requirements. This produces a reducing environment in the furnace before OFA is supplied.
  • the accelerated combustion, higher temperature flame, and larger IRZ all serve to more effectively reduce NO x under reducing conditions.
  • biomass may be prepared for suspension firing using shredders, hammer mills and the like (not shown), collected and regulated in feed rate by a screw feeder or equivalent device (not shown) and pneumatically conveyed to the burner assembly 1 through an appropriate conduit.
  • the conduit supplies biomass and transport air 16 through an elbow 14 whose outlet is situated at the axis of the burner 1 .
  • a reducer 17 may be used to reduce the cross-sectional area of biomass nozzle 18 as the nozzle transverses the burner elbow 14 and continues past the core air duct 16 .
  • a reducer 17 serves to lessen the flow obstruction as the biomass nozzle 18 extends through the length of the burner assembly 1 .
  • the biomass nozzle tip 19 diameter can be expanded as shown ( FIG. 1 .) to reduce the biomass exit velocity to the optimum value for combustion. In certain embodiments, this exit velocity is between about 2500 ft/min and about 5000 ft/min, and more preferably between about 3000 ft/min and 4000 ft/min.
  • core air 5 surrounding the biomass nozzle tip 19 serves to accelerate ignition of the biomass as it enters the burner throat 4 , and supplies air to feed combustion as the biomass continues into the furnace.
  • the hot secondary core air that surrounds the biomass nozzle provides heat to enable additional moisture removal from the biomass fuel while supplying the fuel with an oxidant to facilitate ignition and combustion. This solves the problems related to delayed ignition and combustion associated with firing biomass in prior art burners.
  • Core air damper 7 is adjusted to supply core air 5 in such quantity so as to minimize NO x emissions when firing biomass in combination with pulverized coal. For times when biomass is not being fired, the biomass supply system (not shown) serving the burner assembly 1 is shut down and valve 23 is closed.
  • Valve 21 is then opened and adjusted in combination with core damper 7 to supply the optimum amount of core air 5 necessary for minimizing NO x when firing the particular coal.
  • valve 21 is shut and valve 23 is opened to admit biomass and transport air 16 .
  • FIG. 4 a schematic cross section of the burner assembly 1 of the present invention is shown wherein the five distinct zones of the burner assembly 1 are identified.
  • a biomass zone 32 defined by biomass nozzle 18 is concentrically surround by a core air zone 44 defined the area between biomass nozzle 18 and core nozzle 8 .
  • a coal nozzle 15 concentrically surrounds core nozzle 8 defining a first annular zone 47 wherein pulverized coal and primary air (PC/PA) 13 flows.
  • a barrel 42 concentrically surrounds coal nozzle 15 and defines the inner air zone 10 internal to barrel 42 and an outer air zone 11 external to barrel 42 .
  • One alternative embodiments includes a straight pipe without reducer 17 ( FIG. 2 ), and/or without expansion at the furnace end of biomass nozzle 18 .
  • the alternative of a shorter or recessed biomass nozzle 18 is also shown wherein the biomass nozzle tip 19 terminates within the core nozzle 8 near the core air duct 6 .
  • This embodiment provides the additional benefit of preheating and premixing the biomass with the core air, thereby further enabling additional moisture removal from the biomass fuel.
  • a reducing taper may be used at the exit of the biomass nozzle 18 ( FIG. 3 ) to accelerate the biomass fuel as it enters the furnace 3 to prevent flashback into the biomass nozzle 18 .
  • the biomass nozzle 18 is illustrated as an open-ended nozzle in the figure, it may be readily fitted with deflectors or swirlers near the exit to increase mixing rate of biomass with core air.
  • adjustment means may be included to facilitate minor fore/aft adjustments in the end position of the biomass nozzle 18 relative to the core pipe to enable further optimization of combustion. While the biomass nozzle 18 is shown flush with the end of the core pipe in FIG. 1 , it may also be positioned slightly further back or further forward.
  • valve 21 may be used to admit a small amount of air, either hot secondary air or unheated air, to add air to the center of the flame while firing biomass. The purpose of this is to augment center stoichiometry for lowest NO x (as alternative to increasing transport air quantity).
  • Embodiments of the present invention provide a number of advantages.
  • the biomass co-fired air jet burner according to embodiments of the present invention provides a novel, superior structure and enables a superior method for firing biomass fuels.
  • the large core zone accommodates a biomass nozzle without changing burner size, saving the engineering and manufacturing costs normally associated with building burners of different sizes to accommodate biomass firing.
  • the large biomass nozzle enables firing larger quantities of biomass in selected burners, such that fewer burners need be supplied to fire biomass.
  • Biomass firing rates up to 40% of rated burner input enable boiler biomass firing rates of 20% while using only half the burners.
  • biomass fuel availability often varies with the seasons such that biomass firing may not be conducted continuously.
  • biomass nozzle can be supplied with secondary air when not firing biomass such that both the biomass nozzle 18 and core nozzle 8 provide a combined core air jet for the combustion of pulverized coal.
  • the transport air with biomass contributes to the preferred center stoichiometry of the burner when firing biomass in combination with coal.
  • the coal flow is reduced such that a higher PA/PC ratio is supplied to the burner.
  • This is augmented with transport air from biomass to provide a center stoichiometry conducive to very low NO x emissions.
  • the locating of the biomass nozzle in the core zone provides a source of hot secondary air for igniting and feeding combustion of the biomass fuel, preventing the delayed ignition experienced in prior art as well as feed combustion of the co-fired biomass fuel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
US12/766,991 2009-04-29 2010-04-26 Biomass center air jet burner Abandoned US20100275824A1 (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
US12/766,991 US20100275824A1 (en) 2009-04-29 2010-04-26 Biomass center air jet burner
RU2010116575/06A RU2010116575A (ru) 2009-04-29 2010-04-27 Воздушная струйная горелка центральной биомассы
TW099113507A TW201105907A (en) 2009-04-29 2010-04-28 Biomass center air jet burner
ZA2010/02947A ZA201002947B (en) 2009-04-29 2010-04-28 Biomass center air jet burner
BG10110642A BG110642A (bg) 2009-04-29 2010-04-28 Vuzdoushno - strouyna gorelka s biomasen tsentur
CA2701967A CA2701967A1 (en) 2009-04-29 2010-04-28 Biomass center air jet burner
AU2010201710A AU2010201710B8 (en) 2009-04-29 2010-04-28 Biomass center air jet burner
MX2010004681A MX2010004681A (es) 2009-04-29 2010-04-28 Quemador de chorro de aire de centro de biomasa.
BRPI1001478-0A BRPI1001478A2 (pt) 2009-04-29 2010-04-29 queimador de biomassa por jato de ar central
CL2010000425A CL2010000425A1 (es) 2009-04-29 2010-04-29 Aparato de combustion capaz de quemar combustibles de biomasa, que comprende; un conjunto quemador con una tobera para biomasa, un ventilador de tiro forzado, un ducto de aire central, una tobera central, y un codo de quemador para recibir carbon pulverizado; y quemador de biomasa con chorro de aire central.
CO10050931A CO6330169A1 (es) 2009-04-29 2010-04-29 Quemador de chorro de aire centro de biomasa
ARP100101457A AR076502A1 (es) 2009-04-29 2010-04-29 Un aparato de combustion de combustible biomasa, metodo para operar el aparato, quemador de chorro central de biomasa y ensamble de quemador
CN201010214341.0A CN101881439B (zh) 2009-04-29 2010-04-29 生物质中心空气喷射燃烧器
PL10161503T PL2249081T3 (pl) 2009-04-29 2010-04-29 Palnik do biomasy z centralnym strumieniem powietrza
KR1020100039834A KR101600815B1 (ko) 2009-04-29 2010-04-29 바이오매스용 중앙 공기제트 버너
EP10161503.7A EP2249081B1 (en) 2009-04-29 2010-04-29 Biomass center air jet burner
JP2010105051A JP2010261707A (ja) 2009-04-29 2010-04-30 バイオマスセンターエアジェットバーナ
NZ596441A NZ596441A (en) 2009-04-29 2011-11-15 Biomass center air jet burner with annular zones, for pulverised coal for power production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17365909P 2009-04-29 2009-04-29
US12/766,991 US20100275824A1 (en) 2009-04-29 2010-04-26 Biomass center air jet burner

Publications (1)

Publication Number Publication Date
US20100275824A1 true US20100275824A1 (en) 2010-11-04

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ID=42549195

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/766,991 Abandoned US20100275824A1 (en) 2009-04-29 2010-04-26 Biomass center air jet burner

Country Status (17)

Country Link
US (1) US20100275824A1 (zh)
EP (1) EP2249081B1 (zh)
JP (1) JP2010261707A (zh)
KR (1) KR101600815B1 (zh)
CN (1) CN101881439B (zh)
AR (1) AR076502A1 (zh)
BG (1) BG110642A (zh)
BR (1) BRPI1001478A2 (zh)
CA (1) CA2701967A1 (zh)
CL (1) CL2010000425A1 (zh)
CO (1) CO6330169A1 (zh)
MX (1) MX2010004681A (zh)
NZ (1) NZ596441A (zh)
PL (1) PL2249081T3 (zh)
RU (1) RU2010116575A (zh)
TW (1) TW201105907A (zh)
ZA (1) ZA201002947B (zh)

Cited By (5)

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US20150053124A1 (en) * 2012-03-21 2015-02-26 Kawasaki Jukogyo Kabushiki Kaisha Biomass-mixed, pulverized coal-fired burner and fuel combustion method
US20150068438A1 (en) * 2012-03-21 2015-03-12 Kawasaki Jukogyo Kabushiki Kaisha Biomass-mixed, pulverized coal-fired burner and fuel combustion method
WO2014168881A3 (en) * 2013-04-11 2015-06-18 Babcock & Wilcox Power Generation Group, Inc. Dual phase fuel feeder for boilers
US10955131B2 (en) * 2015-08-13 2021-03-23 General Electric Technology Gmbh System and method for providing combustion in a boiler
WO2025260197A1 (en) * 2024-06-21 2025-12-26 Airex Energie Inc. Burner system for biomass synthesis gases

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KR101752829B1 (ko) 2010-11-26 2017-06-30 삼성전자주식회사 반도체 장치
CN102183011A (zh) * 2011-04-29 2011-09-14 华新环境工程有限公司 垃圾衍生燃料高效燃烧器
JP2014535033A (ja) * 2011-11-11 2014-12-25 エア プロダクツ アンド ケミカルズ インコーポレイテッドＡｉｒ Ｐｒｏｄｕｃｔｓ Ａｎｄ Ｃｈｅｍｉｃａｌｓ Ｉｎｃｏｒｐｏｒａｔｅｄ 予燃焼システムおよびバイオマスのための燃焼用の方法
JP5886031B2 (ja) 2011-12-26 2016-03-16 川崎重工業株式会社 バイオマス燃料燃焼方法
CN103134050B (zh) * 2013-03-07 2015-04-08 上海锅炉厂有限公司 一种带有间隙风的多煤种低氮煤粉燃烧装置
WO2016061067A1 (en) * 2014-10-13 2016-04-21 Eclipse, Inc. Swirl jet burner
CN105465781A (zh) * 2016-01-15 2016-04-06 哈尔滨博深科技发展有限公司 具有周界风的低氮氧化物排放旋流煤粉燃烧器
CN119554637B (zh) * 2024-11-04 2025-09-09 华中科技大学 一种耦合浓淡分离的煤粉分级无焰燃烧装置
CN119755622B (zh) * 2024-11-28 2026-01-23 马鞍山当涂发电有限公司 一种生物质耦合掺烧燃烧发电装置

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AU2010201710A1 (en) 2010-11-18
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EP2249081B1 (en) 2017-03-22
JP2010261707A (ja) 2010-11-18
CN101881439B (zh) 2014-11-12
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CO6330169A1 (es) 2011-10-20
KR20100118954A (ko) 2010-11-08

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