EP0862019B1 - Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen - Google Patents

Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen Download PDF

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Publication number
EP0862019B1
EP0862019B1 EP97810110A EP97810110A EP0862019B1 EP 0862019 B1 EP0862019 B1 EP 0862019B1 EP 97810110 A EP97810110 A EP 97810110A EP 97810110 A EP97810110 A EP 97810110A EP 0862019 B1 EP0862019 B1 EP 0862019B1
Authority
EP
European Patent Office
Prior art keywords
ash
high temperature
temperature region
dust
incineration furnace
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.)
Expired - Lifetime
Application number
EP97810110A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0862019A1 (de
Inventor
Bruno Carcer
John Millard
Verena Dr. Schmidt
Adrian Dr. Selinger
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.)
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
Alstom 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 Alstom SA filed Critical Alstom SA
Priority to ES97810110T priority Critical patent/ES2191163T3/es
Priority to DE59709100T priority patent/DE59709100D1/de
Priority to DK97810110T priority patent/DK0862019T3/da
Priority to EP97810110A priority patent/EP0862019B1/de
Priority to JP10045022A priority patent/JPH10246416A/ja
Priority to NO19980843A priority patent/NO314673B1/no
Publication of EP0862019A1 publication Critical patent/EP0862019A1/de
Application granted granted Critical
Publication of EP0862019B1 publication Critical patent/EP0862019B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
    • 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
    • F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
    • 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
    • F23G5/32—Incineration of waste; Incinerator constructions; Details, accessories or control therefor the waste being subjected to a whirling movement, e.g. cyclonic incinerators
    • 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
    • F23G2202/104—Combustion in two or more stages with ash melting stage
    • 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
    • F23G2202/106—Combustion in two or more stages with recirculation of unburned solid or gaseous matter into combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/30—Solid combustion residues, e.g. bottom or flyash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/102—Intercepting solids by filters electrostatic

Definitions

  • the invention relates to the field of waste incineration. It concerns a Method and device for thermal treatment of aerosols and optionally fine ash from rust burning plants.
  • the exhaust goes through a post combustion for CO and a rapid cooling with water and a lot of air, especially the new formation of toxic organic compounds to prevent.
  • Deposited metal chlorides are resublimated and placed on a Bag filter deposited. This heavy metal concentrate can be smelted.
  • the AshArc oven is designed for very high throughput, it is possible the fine fraction of the grate ash (about 8% of the waste used) together with the filter ash from the particle separation of the flue gas cleaning (about 2.5% from the waste used).
  • a disadvantage of this prior art is that an external furnace unit built which is 100% externally heated. Besides, that's it resulting glassy product not part of the grate ash.
  • the invention seeks to avoid all these disadvantages. It's up to you underlying a method and apparatus for thermal treatment of Airborne dusts and, if appropriate, fine ash from waste incineration plants develop with those in a simple way and at a low cost Product is produced, which slammed either the grate ash or can be recycled separately and thus reduces the remaining fly ash amount becomes.
  • this is achieved by using a method according to the preamble of claim 1 at least a portion of the fly ash in the High temperature range of the combustion furnace is metered back, the Temperature in the said high temperature range above the melting temperature or sintering temperature of the flue dust, and that the flue dust in the high temperature range of the incinerator linger sufficiently long so that they at least partially glazed or sintered. These products can then the slaughtered ash or used separately.
  • a device in a device according to the preamble of Claim 13 achieved in that the ash conveyor to close the high-temperature region of the incinerator that extends the ash conveyor there a metering device for introducing at least one Part of the returned fly ash in the high temperature range of the incinerator is downstream and that in the high temperature range of the incinerator Means for ensuring a sufficient residence time of the ash are arranged.
  • the advantages of the invention include, inter alia, the elimination of the separate High-temperature combustion chamber or the external furnace unit, the previously Melting of the fly ash were necessary. This can save costs become.
  • the product can be added to the grate ash, so that the remaining fly ash amount with high pollutant content compared to Prior art is reduced.
  • Another advantage of the invention is existing systems can be easily retrofitted.
  • the flue dust After discharge from the boiler or the dust filter system first in a low-emission and a high-pollutant fraction are separated and only the Low-emission fraction of flue dust in the high-temperature area of the incinerator is returned because it produces a low-emission product and the risks of corrosion problems due to increased concentrations Heavy metals in the boiler area can be reduced.
  • the fly ash after discharge from the boiler with advantage or the Staubabscheidestrom with the fine fraction ( ⁇ 2 mm) of the example DryEx / DryRec process (dry discharge and dry sorting) prepared Rostasche mixed and then this mixture in the High temperature range of the incinerator is returned. That has that Advantage that the pollutant-rich fraction of the grate ash are treated specifically can.
  • the melting properties, eg. Viscosity, Melting temperature which improves liquid slag, and it becomes a dry, however hardly produced dusty bottom ash.
  • Fig. 1 shows schematically a waste incineration plant according to a first embodiment the invention.
  • the waste incineration plant consists essentially of a combustion furnace 1, a boiler 2 and a Staubabscheidestrom 3, z. B. an electrostatic precipitator, are downstream.
  • combustion furnace 1 a combustion grate 4 is arranged, on the garbage 5, for example, household waste, with supply of primary air 6 in the primary combustion chamber 7 is burned.
  • the combustion takes place in the secondary combustion chamber 8 further completed due to supply of secondary air 9.
  • atmospheric dusts 10 which are mixed with the flue gas 11 via the primary combustion chamber 7, the secondary combustion chamber 8, the radiation train 12 and the contact trains 13 of the boiler 2 in the boiler 2 and in the filter. 3 to be shipped.
  • the airborne dusts 10 will be on the boiler tube walls and the E-filter plates not shown here deposited.
  • the Dust 10 of an ash conveyor 14 preferably a trough chain conveyor, a pneumatic conveyor or a screw conveyor, fed.
  • the ash conveyor 14 extends close to the high temperature range of the incinerator 1.
  • the ash conveyor 14 is a Metering device 15, z. B. a plug screw or a piston pump, connected downstream.
  • the entire discharged dust particles 10 are in this first Embodiment of the invention on the ash conveyor 14, optionally with the addition of additives 16, for example water or melting point-lowering Substances fed to the metering device 15.
  • the additives 16 are mixed Dust 10 dosed into the high temperature range of the incinerator. 1 was added to the ash (flue dust 10) before returning to the furnace 1 water, this is how the already cooling effect of the recirculated ash comes to the fore the surrounding refractory bricks of the incinerator 1 still reinforced. In order to a contribution to corrosion reduction is made. As can be clearly seen in Fig. 1 is the flue dust 10 in this first embodiment in the primary combustion chamber 7 returned.
  • the Fly dust 10 in the high temperature range of the secondary combustion chamber 8 due (see Fig. 2). It is crucial that in this area the temperature is higher than the melting temperature or the sintering temperature of the fly ash 10 or the mixture of aerosols 10 and additives 16, and that the residence time the flue dusts 10 or of the mixture of flue dusts 10 and additives 16 is so large in this high temperature region of the incinerator 2, that a glazing or sintering at least a portion of the fly ash 10th takes place. It is particularly favorable if the entire portion of the returned Product is melted or sintered. Should not the temperatures can be sufficient, via support burner 17 (not shown here), by means of Oil, gas or waste operation are operated, fed an additional amount of heat become.
  • Means 18 arranged to ensure a sufficient residence time of the ash.
  • These means 18 may, for example, gutters, crucibles, harassment and or Plates, but also specially shaped refractory bricks.
  • the products resulting from the glazing / sintering slammed the grate ash 19, either dry or over a water bath wet is discharged from the combustion furnace 1.
  • the dry discharge is It is important that the ash emptying an airtight completion of the firebox forms, which ensures in conventional systems by a water locks is.
  • the grate ash 19 is then known per se methods, for. Legs Dry sorting, further processed.
  • Fig. 2 shows a second embodiment of the invention. It differs from the first embodiment only in that the flue dusts 10 after their Discharge from the boiler 2 and the filter 3 via the ash conveyor 14 in one Bunker 20 stored, then transported to a pelletizing plant 21 and then the pelletized flue dusts 10, if necessary again mixed with additives 16, in the high temperature region of the secondary combustion chamber 8 metered introduced.
  • the schematically indicated in Fig. 2 external temperature source 17 (burner, burner lance) can the secondary combustion chamber 8 additional heat energy. This will be in everyone Ensures a temperature above the melting or sintering temperature the flue dusts 10 or of the mixture of flue dusts 10 and additives 16, so that the melting / sintering of the ash is supported.
  • Fig. 5 shows a possible embodiment of the high-temperature region in the primary combustion chamber 7 and arranged in the secondary combustion chamber 8 Means 18 to ensure a sufficient residence time of the flue dusts 10.
  • the plug screw 15 is here a channel 18 downstream, in which the flue dusts 10 so long under high temperature conditions that they can at least partly melt and vitrify or sinter and these products then the grate ash 19 can be slammed or be recycled separately.
  • Fig. 6 shows a further embodiment.
  • the combustion chamber 7.8 a Nachbrennraum 26 downstream, which is designed so that the molten Ash 25 can be discharged separately from the bottom ash 19.
  • a mixture or a single fraction of ash (boiler ash, Filter ash, fine fraction of the bottom ash) with or without the addition of additives 16 in the combustion chamber 7, 8 or the afterburner 26 are returned.
  • Another advantage of this design is the ability to overflow the dust the nozzles for the secondary air 9 and / or tertiary air 24 in the hot area due. Moreover, by means of a non-concentric transition between the combustion chamber and the afterburner 26 and / or by tangential Injection of the secondary air 9 or the tertiary air 24 in the afterburner 26th a vortex flow is generated in the afterburner 26. The vortex leads to a better separation of the ash particles on the walls of the afterburner 26.
  • the recycled ash, which by means of the secondary air 9 or the Tertiary air 24 is introduced into the afterburner 26, is against the walls thrown, where caused by the very high temperatures ash flow arises.
  • the molten ash 25 flows the walls of the high temperature afterburner 26 down and will have a specially attached Device 27 away from afterburner 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Incineration Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
EP97810110A 1997-02-28 1997-02-28 Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen Expired - Lifetime EP0862019B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES97810110T ES2191163T3 (es) 1997-02-28 1997-02-28 Procedimiento y dispositivo para el tratamiento termico de polvos volatiles procedentes de instalaciones de incineracion con parrilla.
DE59709100T DE59709100D1 (de) 1997-02-28 1997-02-28 Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen
DK97810110T DK0862019T3 (da) 1997-02-28 1997-02-28 Fremgangsmåde og indretning til termisk behandling af flyveaske fra ristforbrændingsanlæg
EP97810110A EP0862019B1 (de) 1997-02-28 1997-02-28 Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen
JP10045022A JPH10246416A (ja) 1997-02-28 1998-02-26 火格子燃焼設備に由来するフライダストを熱的に処理するための方法と装置
NO19980843A NO314673B1 (no) 1997-02-28 1998-02-27 Fremgangsmåte og anordning for termisk behandling av flyvestöv fra ristforbrenningsanlegg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97810110A EP0862019B1 (de) 1997-02-28 1997-02-28 Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen

Publications (2)

Publication Number Publication Date
EP0862019A1 EP0862019A1 (de) 1998-09-02
EP0862019B1 true EP0862019B1 (de) 2003-01-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810110A Expired - Lifetime EP0862019B1 (de) 1997-02-28 1997-02-28 Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen

Country Status (6)

Country Link
EP (1) EP0862019B1 (no)
JP (1) JPH10246416A (no)
DE (1) DE59709100D1 (no)
DK (1) DK0862019T3 (no)
ES (1) ES2191163T3 (no)
NO (1) NO314673B1 (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647770A2 (de) 2004-10-14 2006-04-19 MARTIN GmbH für Umwelt- und Energietechnik Verfahren zur Beeinflussung der Eigenschaften von Verbrennungsrückständen aus einer Verbrennungsanlage

Families Citing this family (14)

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JP2003004211A (ja) * 2001-04-19 2003-01-08 Ebara Corp 廃棄物処理装置および廃棄物の処理方法
DE10213789B4 (de) * 2002-03-27 2006-04-20 Martin GmbH für Umwelt- und Energietechnik Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage
JP3795022B2 (ja) * 2002-03-27 2006-07-12 三菱重工業株式会社 燃焼プラントで生成された燃焼残さの特性を改善する方法、及び該残さを処理する方法
DE10213790B4 (de) * 2002-03-27 2006-05-24 Martin GmbH für Umwelt- und Energietechnik Verfahren zur Abfallverbrennung in einer Abfallverbrennungsanlage
DE10213788B4 (de) * 2002-03-27 2007-04-26 Martin GmbH für Umwelt- und Energietechnik Verfahren zur Beeinflussung der Eigenschaften von Verbrennungsrückständen aus einer Verbrennungsanlage
DE10213787C1 (de) * 2002-03-27 2003-11-27 Martin Umwelt & Energietech Verfahren zum Minimieren der Konzentration an toxischen organischen Schadstoffen in Flugstäuben
US7146916B2 (en) * 2004-05-14 2006-12-12 Eco/Technologies, Llc Starved air inclined hearth combustor
EP2085693A3 (de) * 2008-01-31 2016-03-16 Anton Maggale Verfahren und Vorrichtung zum Verbrennen fester Brennstoffe
RU2415339C2 (ru) 2008-05-29 2011-03-27 Мартин ГмбХ Фюр Умвельт-Унд Энергитехник Установка для сжигания и способ регулирования установки для сжигания
KR101005082B1 (ko) 2010-02-26 2010-12-30 한국기계연구원 석면 폐기물 처리 장치
PL2426414T3 (pl) * 2010-09-06 2019-01-31 Egon Ruß Sposób i urządzenie do spalania paliw stałych
AT513503B1 (de) * 2012-12-21 2014-05-15 Andritz Energy & Environment Gmbh Verbrennungsanlage
CN110369451B (zh) * 2019-07-22 2021-01-29 中南大学 一种烧结机头灰与垃圾焚烧飞灰协同综合利用的方法
CN111068446B (zh) * 2019-12-27 2023-07-25 北京中航泰达环保科技股份有限公司 烧结烟气循环系统及烧结烟气循环系统清灰方法

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DE1181360B (de) * 1959-10-16 1964-11-12 Siemens Ag Verfahren und Anlage zur Muellverbrennung in einem Dampferzeuger
DE3324627A1 (de) * 1983-07-08 1985-01-24 Müllverbrennungsanlage Wuppertal GmbH, 5600 Wuppertal Verfahren zum verbrennen von muell
DE3915992A1 (de) * 1988-05-19 1989-11-23 Theodor Koch Verfahren zur reduktion von stickstoffoxiden
US4922841A (en) * 1988-09-14 1990-05-08 Kent John M Method and apparatus for using hazardous waste to form non-hazardous aggregate
ATE173332T1 (de) * 1992-02-26 1998-11-15 Hans Kuenstler Verfahren zum einschmelzen von verbrennungsrückständen in schlacke
FR2701087B1 (fr) * 1993-02-04 1999-08-06 Tiru Procédé d'incinération de combustibles solides, notamment résidus urbains, à rejets solides et gazeux sensiblement neutres vis-à-vis de l'environnement.
DE4333510C1 (de) * 1993-10-01 1995-01-12 Gutehoffnungshuette Man Verfahren und Vorrichtung zur Behandlung von Rauchgasen aus Abfallverbrennungsanlagen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647770A2 (de) 2004-10-14 2006-04-19 MARTIN GmbH für Umwelt- und Energietechnik Verfahren zur Beeinflussung der Eigenschaften von Verbrennungsrückständen aus einer Verbrennungsanlage
DE102004050098A1 (de) * 2004-10-14 2006-04-20 Martin GmbH für Umwelt- und Energietechnik Verfahren zur Beeinflussung der Eigenschaften von Verbrennungsrückständen
DE102004050098B4 (de) * 2004-10-14 2007-05-31 Martin GmbH für Umwelt- und Energietechnik Verbrennungsanlage, insbesondere Abfallverbrennungsanlage
US7640872B2 (en) 2004-10-14 2010-01-05 Martin GmbH für Umwelt- und Energietechnik Process for influencing the properties of combustion residue

Also Published As

Publication number Publication date
EP0862019A1 (de) 1998-09-02
NO314673B1 (no) 2003-04-28
NO980843L (no) 1998-08-31
DE59709100D1 (de) 2003-02-13
JPH10246416A (ja) 1998-09-14
DK0862019T3 (da) 2003-04-22
ES2191163T3 (es) 2003-09-01
NO980843D0 (no) 1998-02-27

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