EP0171788A1 - Zündungs- und Erhaltungsbrenner für festen, fossilen und zerstäubten Brennstoff und Verbrennungskammer mit solchen Brennern - Google Patents

Zündungs- und Erhaltungsbrenner für festen, fossilen und zerstäubten Brennstoff und Verbrennungskammer mit solchen Brennern Download PDF

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Publication number
EP0171788A1
EP0171788A1 EP85110126A EP85110126A EP0171788A1 EP 0171788 A1 EP0171788 A1 EP 0171788A1 EP 85110126 A EP85110126 A EP 85110126A EP 85110126 A EP85110126 A EP 85110126A EP 0171788 A1 EP0171788 A1 EP 0171788A1
Authority
EP
European Patent Office
Prior art keywords
ignition
burner
support
burners
fuel
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.)
Granted
Application number
EP85110126A
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English (en)
French (fr)
Other versions
EP0171788B1 (de
Inventor
Jean Vidal
François Malaubier
Jean-Claude Mevel
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.)
Stein Industrie SA
Original Assignee
Stein Industrie SA
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 Stein Industrie SA filed Critical Stein Industrie SA
Priority to AT85110126T priority Critical patent/ATE40457T1/de
Publication of EP0171788A1 publication Critical patent/EP0171788A1/de
Application granted granted Critical
Publication of EP0171788B1 publication Critical patent/EP0171788B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus

Definitions

  • Combustion equipment for pulverized solid fuels of known boilers for thermal power stations, or possibly ovens comprises, in addition to the main burners, ignition and combustion support burners whose function is to ensure start-up operations at cold and assistance at low loads of the main burners.
  • the object of the present invention is to provide an ignition burner and support for combustion using pulverized fossil fuel, which has a lower operating cost than an ignition and support burner for fuel oil or gas, and easily adapts to frequent stops and prolonged operations at low load.
  • the ignition and support burner for pulverized solid fossil fuel according to the invention is characterized in that the axial duct is provided with translation means making it possible to adjust the length of the premix chamber of the fuel and part of the gas oxidizer between the end of this conduit and the inlet of the outlet.
  • the ignition and support burner comprises a first annular conduit for the introduction of secondary oxidant gas provided at its end with means for creating turbulence in the flow of oxidant gas, and a second. annular conduit for introducing secondary oxidant gas also provided with means for creating turbulence in the flow of oxidant gas.
  • This burner is provided with means for adjusting the respective flow rates of oxidizing gas introduced into the first and second annular ducts.
  • the ignition and support burner according to the invention preferably comprises an additional igniter consisting of one or more injectors of liquid or gaseous fuel distributed in the wall of the flue.
  • the invention further extends to combustion chambers with main burners and ignition and fuel support burners. pulverized fossil.
  • each ignition and support burner is disposed between two main burners, vertically or laterally with respect to a main burner and at the level thereof, but in this case, the third conduit for introducing tertiary oxidizing gas is concentric with the flue and surrounds it.
  • each ignition and support burner is in the axis of a main burner, or placed in the arrival of secondary oxidant gas therefrom, or even laterally adjacent thereto, but in this case, the third conduit for introducing tertiary oxidant gas is concentric with the flue and surrounds it.
  • the tertiary oxidant gas of the ignition and support burner can also be introduced in part by the main burner.
  • an ignition and combustion support burner for a pulverized coal boiler for a pulverized coal boiler, and different possible arrangements of such burners with respect to the burners main.
  • the oxidizing gas is for example air.
  • the axial pipe or tube 1 provides a central supply of pulverized coal transported by primary air in relatively dense phase (several kg of coal pulverized per kg of air, and for example from 4 to 10 kg of coal per kg of air).
  • This tube is surrounded by a first duct or annular tube 2 for secondary air inlet, coming from the duct 3, at a flow rate adjustable by a flap 4.
  • the axial tube 1 can slide inside the annular tube 2, of which it crosses the wall by a seal 5 allowing its translation.
  • the periphery of the end of the tube 1 is provided with fins 6 for rotating for the secondary air coming from the annular tube 2. These fins 6 make it possible to produce, at the outlet of the tube 1, by turbulence, an intimate mixture of the fuel and part of the air.
  • the air arriving through the annular tube 2 can be preheated to promote the ignition of the fuel.
  • the axial position of the end of the axial tube 1 is adjustable by means of a handle 21 for controlling the translation of this tube, which makes it possible to modify the length L, and consequently the volume of a premix chamber 10, between the end of the axial tube 1 and the bottom of the outlet 12, so as to adapt it to the flow rate and to the quality of the powdered coal admitted by the tube.
  • the second duct or annular secondary air introduction tube 7 is supplied by the duct 8. It is provided with a flow adjustment flap 9, and is equipped at its end with rotation fins 11. L The air arriving through the annular tube can be preheated to promote ignition of the fuel.
  • the flow rates and proportions of air passing through tubes 2 and 7 are adjusted according to the quality of the coal.
  • the opening itself is provided with a refractory lining 13.
  • This opening comprises an igniter 15 of low power (of the order of 1% of the total power of the burner), which can operate either with gas or with fuel oil domesticated. It can be replaced by an electric igniter, with arc periodically spouting between electrodes.
  • an additional gas igniter is arranged in the quill. It consists of several injectors such as 16, 17 distributed in the wall of the flue in the ignition zone.
  • a flame detector 20 which also monitors the flame of the pulverized fossil fuel.
  • the length of the premix chamber is adjustable between 100 and 500 mm depending on the flammability of the carbon.
  • FIG. 2 represents an arrangement of an ignition and support burner with respect to the main burners, in the case of a boiler hearth with tangential heating.
  • the ignition and support burner 22 is arranged between two main burners 23, 24 of rectangular section each of which is surrounded by a rectangular opening 25, 26 for introducing secondary air and framed between two rectangular orifices (27, 29 ; 28, 30) secondary air intake.
  • the orifices 27, 28 are used both for the admission of secondary air to the main burner and of tertiary air to the ignition and support burner. In such an arrangement, the admissions 18, 19, as mentioned in Figure 1, are deleted.
  • FIG. 3 represents another possible arrangement of the ignition and support burners with respect to the main burners, in the case of a boiler hearth with tangential heating.
  • the main burner 31 is arranged on an edge of the hearth, of rectangular cross section.
  • the ignition and support burner 32 is disposed laterally, on the face 33 of the hearth adjacent to this edge, in a circular opening obtained by deforming at this location the tubes constituting the wall of the hearth.
  • the ignition and support burner conforms to Figure 1.
  • FIG. 4 shows a relative arrangement of the main burners and of the ignition and support burners in a front-heating boiler home.
  • the main burners 41 are distributed in two rows on the face 40. They. comprise an external tube 42 and an internal tube 43 which delimit a central inlet 45 for primary air and a peripheral inlet 46 for secondary air.
  • the ignition and support burners 44 are arranged in the axis of the main burners 41. These ignition and support burners 44 conform to that of FIG. 1, but in this case the tertiary air intakes 18, 19 are deleted.
  • Figure 5 shows another possible arrangement.
  • the main burners 51 are distributed in two rows on the face 50. They comprise an external tube 52 and an internal tube 53 which provide a central inlet 55 for primary air and a peripheral inlet 56 for secondary air.
  • the ignition and support burners 54 are arranged in the secondary air inlet of the main burners 51. In this case also the tertiary air inlets 18, 19 of the ignition and support burners 54 are eliminated.
  • Figure 6 shows another possible arrangement.
  • the burners 61 are distributed in two rows on the face 60. They comprise an external tube 62 and an internal tube 63 which delimit a central inlet 65 for primary air and a peripheral inlet 66 for secondary air.
  • the ignition and support burners 64 are each in an adjacent position relative to a main burner 61. In this case, the ignition and support burners 64 are in accordance with that of FIG. 1.
  • the ignition and support burners can be supplied with the same charcoal as the main burners, or with charcoal of different nature and / or particle size.
  • ignition and support burners can operate independently of the main burners.
  • the invention can also be applied to burners or hearths burning lignite.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Disintegrating Or Milling (AREA)
EP85110126A 1984-08-16 1985-08-13 Zündungs- und Erhaltungsbrenner für festen, fossilen und zerstäubten Brennstoff und Verbrennungskammer mit solchen Brennern Expired EP0171788B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85110126T ATE40457T1 (de) 1984-08-16 1985-08-13 Zuendungs- und erhaltungsbrenner fuer festen, fossilen und zerstaeubten brennstoff und verbrennungskammer mit solchen brennern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8412855 1984-08-16
FR8412855A FR2569256B1 (fr) 1984-08-16 1984-08-16 Bruleur d'allumage et de soutien de combustion pour combustible solide fossile pulverise, et chambre de combustion comportant de tels bruleurs

Publications (2)

Publication Number Publication Date
EP0171788A1 true EP0171788A1 (de) 1986-02-19
EP0171788B1 EP0171788B1 (de) 1989-01-25

Family

ID=9307063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110126A Expired EP0171788B1 (de) 1984-08-16 1985-08-13 Zündungs- und Erhaltungsbrenner für festen, fossilen und zerstäubten Brennstoff und Verbrennungskammer mit solchen Brennern

Country Status (14)

Country Link
US (1) US4690075A (de)
EP (1) EP0171788B1 (de)
JP (1) JPS6159109A (de)
KR (1) KR940006903B1 (de)
AT (1) ATE40457T1 (de)
AU (1) AU587392B2 (de)
BR (1) BR8503889A (de)
CA (1) CA1268996A (de)
DE (1) DE3567956D1 (de)
ES (1) ES8700413A1 (de)
FR (1) FR2569256B1 (de)
GR (1) GR851990B (de)
IN (1) IN164006B (de)
ZA (1) ZA856236B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2304316A2 (de) * 2008-07-11 2011-04-06 Rheinkalk GmbH Brennereinheit und brenneranordnung für staubförmigen festbrennstoff
CN109631018A (zh) * 2018-12-18 2019-04-16 哈尔滨工业大学 一种用于工业煤粉锅炉的渐扩式防结渣燃烧器

Families Citing this family (20)

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GB2202234B (en) * 1987-03-16 1991-09-18 Shell Int Research Method for starting up a partial combustion process
US5211705A (en) * 1987-03-19 1993-05-18 Damper Design, Inc. Apparatus and method for delivery of combustion air in multiple zones
US4801261A (en) * 1987-03-19 1989-01-31 Eagleair, Inc. Apparatus and method for delivery of combustion air in multiple zones
US5183646A (en) * 1989-04-12 1993-02-02 Custom Engineered Materials, Inc. Incinerator for complete oxidation of impurities in a gas stream
DE19514615C2 (de) * 1995-04-25 2001-05-17 Alstom Power Boiler Gmbh Brenner, insbesondere Strahlbrenner, zum Verbrennen von staubförmigem Brennstoff, insbesondere staubförmiger Kohle, und einem brennbaren Fluid
FR2869672A1 (fr) * 2004-10-15 2005-11-04 Alstom Sa Dispositif d'injection de gaz dans un foyer
FR2880410B1 (fr) * 2005-01-03 2007-03-16 Air Liquide Procede de combustion etagee produisant des flammes asymetriques
CN102788347B (zh) * 2012-06-07 2014-11-12 上海锅炉厂有限公司 一种微油量点火煤粉燃烧系统
US9909755B2 (en) * 2013-03-15 2018-03-06 Fives North American Combustion, Inc. Low NOx combustion method and apparatus
GB2513389A (en) 2013-04-25 2014-10-29 Rjm Corp Ec Ltd Nozzle for power station burner and method for the use thereof
EP3130851B1 (de) * 2015-08-13 2021-03-24 General Electric Technology GmbH System und verfahren zur bereitstellung von verbrennung in einem heizkessel
CN107477572A (zh) * 2017-09-21 2017-12-15 哈尔滨工业大学 采用分离二次风双层射流的中心给粉旋流煤粉燃烧装置
CN107559819A (zh) * 2017-09-21 2018-01-09 哈尔滨工业大学 一种用于工业锅炉带有渐扩形预燃室的旋流煤粉燃烧机构
CN107559818A (zh) * 2017-09-21 2018-01-09 哈尔滨工业大学 采用预燃室及双层射流分离二次风的中心给粉旋流煤粉燃烧装置
CN107559822B (zh) * 2017-09-21 2020-06-09 哈尔滨工业大学 中心给粉旋流煤粉燃器和燃尽风布置结构
CN107504480A (zh) * 2017-09-21 2017-12-22 哈尔滨工业大学 一种带有中心给粉旋流煤粉燃烧装置的工业煤粉锅炉
CN107606607A (zh) * 2017-09-21 2018-01-19 哈尔滨工业大学 一种燃尽风环形布置的中心给粉稳燃型燃烧装置
CN112902147B (zh) * 2021-02-07 2022-03-01 哈尔滨工业大学 一种混烧低挥发分固体燃料的预燃室燃烧装置
CN113007698B (zh) * 2021-02-07 2021-12-03 哈尔滨工业大学 一种用于对冲燃烧锅炉下层的燃烧系统及使用方法
CN114017796A (zh) * 2021-11-03 2022-02-08 北京优稳昌盛科技有限公司 一种基于煤粉锅炉的自动点火控制系统

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1600724A (en) * 1923-11-22 1926-09-21 Fitch William Henry Burner
US2096946A (en) * 1932-12-27 1937-10-26 Powderco Inc Apparatus for burning powdered fuel
FR870016A (fr) * 1940-02-08 1942-02-27 Kohlenscheidungs Gmbh Foyer à combustible pulvérisé
DE881717C (de) * 1940-03-28 1953-07-02 Steinmueller Gmbh L & C Mit Kohlenstaub betriebener Zuendbrenner fuer Kohlenstaubfeuerungen
DE916663C (de) * 1951-02-03 1954-08-16 Ruhrgas Ag Duese fuer Vorrichtungen zur Verbrennung oder Vergasung von Brennstoffstaub
GB809148A (en) * 1956-11-20 1959-02-18 Prvni Brnenska Strojirna Zd Y A furnace for burning pulverised coal
FR1347777A (fr) * 1962-11-19 1964-01-04 O C C R Organisation Conceptio Brûleur à poussières de déchets végétaux
FR2375544A2 (fr) * 1976-12-22 1978-07-21 Colmant Cuvelier Bruleur pour carburant pulverulent
FR2381242A1 (fr) * 1977-02-18 1978-09-15 Combustion Eng Procede d'inflammation et d'entretien de la combustion de charbon pulverise
US4173189A (en) * 1977-01-21 1979-11-06 Combustion Engineering, Inc. Boiler cold start using pulverized coal in ignitor burners
DE3048201A1 (de) * 1980-12-20 1982-07-08 L. & C. Steinmüller GmbH, 5270 Gummersbach "brenner zur verminderung der no(pfeil abwaerts)x(pfeil abwaerts)-emission"
EP0057895A2 (de) * 1981-02-06 1982-08-18 STEIN INDUSTRIE Société anonyme dite: Vorrichtung zur direkten Zündung von heizwertarmen pulverisierten festen Brennstoffen in kalten Brennkammern
GB2093979A (en) * 1981-02-27 1982-09-08 Steag Ag A method for at least the two-stage ignition of a fuel dust power burner and a burner system for carrying out this method
US4381718A (en) * 1980-11-17 1983-05-03 Carver George P Low emissions process and burner
FR2522392A1 (fr) * 1982-02-26 1983-09-02 Sumitomo Metal Ind Bruleur a charbon pulverulent

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US3123027A (en) * 1964-03-03 Apparatus and method of flame or combustion rate
US2485656A (en) * 1944-03-25 1949-10-25 Franz J M Raskin Hydroxylating fuel burner
DE2933060B1 (de) * 1979-08-16 1980-10-30 Steinmueller Gmbh L & C Brenner zur Verbrennung von staubfoermigen Brennstoffen
US4531461A (en) * 1982-05-14 1985-07-30 T.A.S., Inc. Solid fuel pulverizing and burning system and method and pulverizer and burner therefor
JPS60226609A (ja) * 1984-04-23 1985-11-11 Babcock Hitachi Kk 燃焼装置

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1600724A (en) * 1923-11-22 1926-09-21 Fitch William Henry Burner
US2096946A (en) * 1932-12-27 1937-10-26 Powderco Inc Apparatus for burning powdered fuel
FR870016A (fr) * 1940-02-08 1942-02-27 Kohlenscheidungs Gmbh Foyer à combustible pulvérisé
DE881717C (de) * 1940-03-28 1953-07-02 Steinmueller Gmbh L & C Mit Kohlenstaub betriebener Zuendbrenner fuer Kohlenstaubfeuerungen
DE916663C (de) * 1951-02-03 1954-08-16 Ruhrgas Ag Duese fuer Vorrichtungen zur Verbrennung oder Vergasung von Brennstoffstaub
GB809148A (en) * 1956-11-20 1959-02-18 Prvni Brnenska Strojirna Zd Y A furnace for burning pulverised coal
FR1347777A (fr) * 1962-11-19 1964-01-04 O C C R Organisation Conceptio Brûleur à poussières de déchets végétaux
FR2375544A2 (fr) * 1976-12-22 1978-07-21 Colmant Cuvelier Bruleur pour carburant pulverulent
US4173189A (en) * 1977-01-21 1979-11-06 Combustion Engineering, Inc. Boiler cold start using pulverized coal in ignitor burners
FR2381242A1 (fr) * 1977-02-18 1978-09-15 Combustion Eng Procede d'inflammation et d'entretien de la combustion de charbon pulverise
US4381718A (en) * 1980-11-17 1983-05-03 Carver George P Low emissions process and burner
DE3048201A1 (de) * 1980-12-20 1982-07-08 L. & C. Steinmüller GmbH, 5270 Gummersbach "brenner zur verminderung der no(pfeil abwaerts)x(pfeil abwaerts)-emission"
EP0057895A2 (de) * 1981-02-06 1982-08-18 STEIN INDUSTRIE Société anonyme dite: Vorrichtung zur direkten Zündung von heizwertarmen pulverisierten festen Brennstoffen in kalten Brennkammern
GB2093979A (en) * 1981-02-27 1982-09-08 Steag Ag A method for at least the two-stage ignition of a fuel dust power burner and a burner system for carrying out this method
FR2522392A1 (fr) * 1982-02-26 1983-09-02 Sumitomo Metal Ind Bruleur a charbon pulverulent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2304316A2 (de) * 2008-07-11 2011-04-06 Rheinkalk GmbH Brennereinheit und brenneranordnung für staubförmigen festbrennstoff
CN109631018A (zh) * 2018-12-18 2019-04-16 哈尔滨工业大学 一种用于工业煤粉锅炉的渐扩式防结渣燃烧器

Also Published As

Publication number Publication date
DE3567956D1 (en) 1989-03-02
IN164006B (de) 1988-12-24
ES546120A0 (es) 1986-10-16
CA1268996A (fr) 1990-05-15
FR2569256B1 (fr) 1989-04-07
ES8700413A1 (es) 1986-10-16
ATE40457T1 (de) 1989-02-15
AU4622385A (en) 1986-02-20
JPS6159109A (ja) 1986-03-26
FR2569256A1 (fr) 1986-02-21
US4690075A (en) 1987-09-01
KR860001981A (ko) 1986-03-24
ZA856236B (en) 1986-04-30
KR940006903B1 (ko) 1994-07-29
JPH0240923B2 (de) 1990-09-13
GR851990B (de) 1985-12-17
BR8503889A (pt) 1986-05-27
AU587392B2 (en) 1989-08-17
EP0171788B1 (de) 1989-01-25

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