EP1447622A3 - Method of firing a flame-tube boiler and pulverized fuel fired flame-tube boiler - Google Patents

Method of firing a flame-tube boiler and pulverized fuel fired flame-tube boiler Download PDF

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Publication number
EP1447622A3
EP1447622A3 EP04000885A EP04000885A EP1447622A3 EP 1447622 A3 EP1447622 A3 EP 1447622A3 EP 04000885 A EP04000885 A EP 04000885A EP 04000885 A EP04000885 A EP 04000885A EP 1447622 A3 EP1447622 A3 EP 1447622A3
Authority
EP
European Patent Office
Prior art keywords
flame
tube boiler
flame tube
firing
pulverized 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
EP04000885A
Other languages
German (de)
French (fr)
Other versions
EP1447622A2 (en
EP1447622B1 (en
Inventor
Fritz Dr.-Ing. Schoppe
Original Assignee
Fritz Dr.-Ing. Schoppe
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
Priority to DE2003101857 priority Critical patent/DE10301857A1/en
Priority to DE10301857 priority
Application filed by Fritz Dr.-Ing. Schoppe filed Critical Fritz Dr.-Ing. Schoppe
Publication of EP1447622A2 publication Critical patent/EP1447622A2/en
Publication of EP1447622A3 publication Critical patent/EP1447622A3/en
Application granted granted Critical
Publication of EP1447622B1 publication Critical patent/EP1447622B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00Combustion apparatus characterised by arrangements for air supply
    • F23C7/002Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F23C7/004Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion using vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00Combustion apparatus characterised by the shape of the combustion chamber
    • F23C3/002Combustion apparatus characterised by the shape of the combustion chamber the chamber having an elongated tubular form, e.g. for a radiant tube
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08Disposition of burners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D1/00Burners for combustion of pulverulent fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/03005Burners with an internal combustion chamber, e.g. for obtaining an increased heat release, a high speed jet flame or being used for starting the combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/06041Staged supply of oxidant

Abstract

Es wird ein Verfahren zum Feuern eines Flammrohrkessels großer Leistung mit einem staubförmigen Brennstoff angegeben, bei dem wenigstens 30% des Brennstoffs in einer Vorbrennkammer verbrannt werden, und die aus der Vorbrennkammer austretenden, brennenden Flammgase auf eine Geschwindigkeit von wenigstens 80 m/s beschleunigt und mit dieser Geschwindigkeit in das Flammrohr eingeblasen werden. Man erreicht durch diese Maßnahme eine Herabsetzung der Wärmestromdichte in der Wand des Flammrohrs, die es ermöglicht, die Wanddicke des Flammrohres gegenüber dem bislang zulässigen Maß zu vergrößern und dadurch die Abmessungen des Flammrohrs insgesamt zu vergrößern.
Figure 00000001
A method is provided for firing a large-capacity flame tube boiler with a dust-like fuel, in which at least 30% of the fuel is burned in a pre-combustion chamber, and accelerates the burning flame gases emerging from the pre-combustion chamber to a speed of at least 80 m / s and with be blown into the flame tube at this speed. This measure achieves a reduction in the heat flow density in the wall of the flame tube, which makes it possible to increase the wall thickness of the flame tube compared to the previously permitted dimension and thereby to increase the overall dimensions of the flame tube.
EP20040000885 2003-01-17 2004-01-16 Pulverized fuel fired flame-tube boiler Active EP1447622B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003101857 DE10301857A1 (en) 2003-01-17 2003-01-17 Firing a high power flue boiler, using a lignite dust fuel, has a pre-combustion chamber to burn the fuel with a jet to accelerate the gas flame into the flue for a high firing power
DE10301857 2003-01-17

Publications (3)

Publication Number Publication Date
EP1447622A2 EP1447622A2 (en) 2004-08-18
EP1447622A3 true EP1447622A3 (en) 2004-09-15
EP1447622B1 EP1447622B1 (en) 2010-04-28

Family

ID=32602729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040000885 Active EP1447622B1 (en) 2003-01-17 2004-01-16 Pulverized fuel fired flame-tube boiler

Country Status (3)

Country Link
EP (1) EP1447622B1 (en)
AT (1) AT466238T (en)
DE (2) DE10301857A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944014A (en) * 2012-10-22 2013-02-27 瑞焓能源科技有限公司 Industrial boiler burner and industrial boiler with same
CN103791494B (en) * 2014-01-22 2016-04-13 煤炭科学技术研究院有限公司 A kind of air-cooled coal dust low NO and using method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300480A (en) * 1978-12-15 1981-11-17 Fritz Schoppe Apparatus and process for the operation of an environmentally satisfactory coal fired plant
WO1983002309A1 (en) * 1981-12-30 1983-07-07 Fritz Schoppe Boiler furnace
DE3312353A1 (en) * 1983-04-06 1984-10-18 Zimmermann Azo Maschf Pulverised coal burner
US4846666A (en) * 1987-05-08 1989-07-11 Krupp Polysius Ag Method and burner for burning fuel
WO1992003212A1 (en) * 1990-08-17 1992-03-05 Fritz Schoppe Process and device for improving the utilization of heat from combustion waste gases containing dust or ash
DE10055507A1 (en) * 2000-11-09 2002-05-23 Fritz Schoppe Oil or gas fired boiler firing method involves introducing fluidized coal dust into combustion chamber and blowing flame into boiler firing chamber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300480A (en) * 1978-12-15 1981-11-17 Fritz Schoppe Apparatus and process for the operation of an environmentally satisfactory coal fired plant
WO1983002309A1 (en) * 1981-12-30 1983-07-07 Fritz Schoppe Boiler furnace
DE3312353A1 (en) * 1983-04-06 1984-10-18 Zimmermann Azo Maschf Pulverised coal burner
US4846666A (en) * 1987-05-08 1989-07-11 Krupp Polysius Ag Method and burner for burning fuel
WO1992003212A1 (en) * 1990-08-17 1992-03-05 Fritz Schoppe Process and device for improving the utilization of heat from combustion waste gases containing dust or ash
DE10055507A1 (en) * 2000-11-09 2002-05-23 Fritz Schoppe Oil or gas fired boiler firing method involves introducing fluidized coal dust into combustion chamber and blowing flame into boiler firing chamber

Also Published As

Publication number Publication date
DE502004011085D1 (en) 2010-06-10
EP1447622B1 (en) 2010-04-28
EP1447622A2 (en) 2004-08-18
DE10301857A1 (en) 2004-07-29
AT466238T (en) 2010-05-15

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