EP0497089B1 - Verfahren zur Temperaturregulation in Müllverbrennungsanlagen - Google Patents

Verfahren zur Temperaturregulation in Müllverbrennungsanlagen Download PDF

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Publication number
EP0497089B1
EP0497089B1 EP92100083A EP92100083A EP0497089B1 EP 0497089 B1 EP0497089 B1 EP 0497089B1 EP 92100083 A EP92100083 A EP 92100083A EP 92100083 A EP92100083 A EP 92100083A EP 0497089 B1 EP0497089 B1 EP 0497089B1
Authority
EP
European Patent Office
Prior art keywords
flue gas
grate
combustion chamber
air supply
gas introduction
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.)
Revoked
Application number
EP92100083A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0497089A2 (de
EP0497089A3 (en
Inventor
Peter Dipl.-Ing. Nüesch
Hans-Joachim Dipl.-Ing. Kümmel
Gert Dr.-Ing. Lautenschlager
Wolfram Dr.-Ing. Schnabel
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.)
Noell Abfall- und Energietechnik GmbH
Original Assignee
Noell Abfall- und Energietechnik GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6424164&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0497089(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Noell Abfall- und Energietechnik GmbH filed Critical Noell Abfall- und Energietechnik GmbH
Publication of EP0497089A2 publication Critical patent/EP0497089A2/de
Publication of EP0497089A3 publication Critical patent/EP0497089A3/de
Application granted granted Critical
Publication of EP0497089B1 publication Critical patent/EP0497089B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/00001—Exhaust gas recirculation

Definitions

  • the invention relates to a method for regulating the temperature of furnaces in the gradual combustion in waste incineration plants with substoichiometric air supply below the grate and further air supply above the grate.
  • the 17th Federal Immission Control Ordinance requires compliance with a flue gas temperature of 850 ° C for a flow duration of 2 seconds from the last air injection into the boiler. At an average flue gas speed of 5 m / sec. this corresponds to a required flue gas temperature of 850 ° C 10 m above the last air supply. Under favorable conditions, a temperature reduction of 150 ° C can be expected at this distance, so that a temperature of 1,000 ° C and higher must prevail in the area of the last air supply. The combustion of the waste incineration plants must then reach an internal temperature of ⁇ 1,000 ° C. The simultaneous demand for the flawless operation of the furnace makes it necessary to dissipate the heat in the furnace via water-cooled combustion chambers.
  • the technical problem of the invention is solved in that 10 to 30% by volume of the total flue gas is recirculated and blown directly into the furnace above the garbage bed.
  • the flue gas is recirculated after flowing through the boiler and a first cleaning stage.
  • the recirculation can be controlled with a fire optimization control in coordination with the gradual combustion.
  • the opening nozzles of the flue gas supply can be changed in horizontal and vertical inclination.
  • the opening nozzles of the flue gas supply can be designed as square or circular nozzles, the free cross section of which can be changed by changing inserts. A total of up to ten openings are provided on each side. As a result, the free flow cross section of the square or circular nozzles can be changed.
  • the missing stoichiometric proportion of air is preferably preheated via side wall panels and then supplied above the grate.
  • the amount of flue gas used to reduce the combustion chamber temperatures is blown in above the plate air in such a way that intensive mixing still takes place within the combustion chamber during the combustion process.
  • the amount of flue gas is supplied from the side, with the supply being fed obliquely downwards into the combustion chamber. Through the flue gas recirculation, the temperature profile is evened out and thermal boiler misalignments are largely reduced. At the same time, the oxygen content is also reduced and the overall thermal efficiency of the furnace is improved by the method according to the invention.
  • the amount of flue gas fed into the furnace is substituted partly the combustion air / cooling air entered via side wall panels depending on the calorific value of the waste.
  • the recirculated flue gas quantity is a maximum of 50 vol.% Of the side wall air supplied, corresponding to 10 to 30 vol.% Of the total flue gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
EP92100083A 1991-02-01 1992-01-04 Verfahren zur Temperaturregulation in Müllverbrennungsanlagen Revoked EP0497089B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4103025A DE4103025A1 (de) 1991-02-01 1991-02-01 Verfahren zur temperaturregulation in muellverbrennungsanlagen
DE4103025 1991-02-01

Publications (3)

Publication Number Publication Date
EP0497089A2 EP0497089A2 (de) 1992-08-05
EP0497089A3 EP0497089A3 (en) 1992-12-23
EP0497089B1 true EP0497089B1 (de) 1995-05-03

Family

ID=6424164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92100083A Revoked EP0497089B1 (de) 1991-02-01 1992-01-04 Verfahren zur Temperaturregulation in Müllverbrennungsanlagen

Country Status (2)

Country Link
EP (1) EP0497089B1 (enrdf_load_stackoverflow)
DE (2) DE4103025A1 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9401269A (nl) * 1994-08-02 1996-03-01 Kema Nv Werkwijze en verbrander voor het uitvoeren van met zuurstof verrijkte verbranding.
ATE191552T1 (de) * 1995-07-20 2000-04-15 Karlsruhe Forschzent Verfahren zur verbrennung von thermisch zu behandelnden stoffen
DE19706606A1 (de) * 1997-02-20 1998-08-27 Babcock Anlagen Gmbh Verfahren zur Regelung der Temperatur in thermischen Abfallbehandlunganlagen und Abfallbehandlunganlage
AT412500B (de) * 2002-10-29 2005-03-25 Wilde Andreas Ing Verfahren zum verbrennen von kleinstückeligem brennstoff
DE102004037442B4 (de) * 2004-08-02 2007-07-12 Ae&E Inova Gmbh Verfahren zur thermischen Behandlung von Abfall in einer thermischen Abfallbehandlungsanlage sowie thermische Abfallbehandlungsanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958920A (en) * 1975-06-03 1976-05-25 Rust Engineering Company System for controlling the operation of a multiple hearth furnace
US4091748A (en) * 1976-12-03 1978-05-30 Mansfield Carbon Products, Inc. Method and apparatus for producing gas from solid municipal waste
DE3621347A1 (de) * 1986-06-26 1988-01-14 Henkel Kgaa Verfahren und anlage zur verminderung des no(pfeil abwaerts)x(pfeil abwaerts)-gehaltes im rauchgas bei kohlenstaubbefeuerten dampferzeugern mit trockenentaschung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Arndt I. Urban, S.M. "Rauchgasrezirkulation bei der Abfallverbrennung", Dissertation, Fachbereich 21 Umwelttechnik der Technischen Universität Berlin, Berlin 1981. *

Also Published As

Publication number Publication date
EP0497089A2 (de) 1992-08-05
DE4103025C2 (enrdf_load_stackoverflow) 1993-08-26
DE59202050D1 (de) 1995-06-08
DE4103025A1 (de) 1992-08-06
EP0497089A3 (en) 1992-12-23

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