EP1348905B1 - Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage - Google Patents

Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage Download PDF

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Publication number
EP1348905B1
EP1348905B1 EP03001178A EP03001178A EP1348905B1 EP 1348905 B1 EP1348905 B1 EP 1348905B1 EP 03001178 A EP03001178 A EP 03001178A EP 03001178 A EP03001178 A EP 03001178A EP 1348905 B1 EP1348905 B1 EP 1348905B1
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EP
European Patent Office
Prior art keywords
fraction
wet
water
deslagger
incineration
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
EP03001178A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1348905A1 (de
Inventor
Johannes Martin
Oliver Dr. Gohlke
Joachim Horn
Michael Busch
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
Mitsubishi Heavy Industries Ltd
Original Assignee
Martin GmbH fuer Umwelt und Energietechnik
Mitsubishi Heavy Industries Ltd
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 Martin GmbH fuer Umwelt und Energietechnik, Mitsubishi Heavy Industries Ltd filed Critical Martin GmbH fuer Umwelt und Energietechnik
Publication of EP1348905A1 publication Critical patent/EP1348905A1/de
Application granted granted Critical
Publication of EP1348905B1 publication Critical patent/EP1348905B1/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
    • F23G5/006—General arrangement of incineration plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/04—General arrangement of separating plant, e.g. flow sheets specially adapted for furnace residues, smeltings, or foundry slags
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/60—Separating
    • F23G2201/602—Separating different sizes
    • 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 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01001—Sorting and classifying ashes or fly-ashes from the combustion chamber before further treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01005—Mixing water to ash

Definitions

  • the invention relates to a method of treatment combustion residues of an incinerator, in particular Waste incineration plant where the fuel Burned on a firing grate and the resulting Combustion residues in a wet slag extinguished and be transported out of this.
  • the object of the invention is to provide a method with its help the separation and increase of the share usable Slag from combustion residues facilitated is and indeed with a low expenditure on equipment under Avoiding the disadvantages of dust formation and air occlusion the firebox and a low water consumption.
  • This object is based on the above-explained Method depending on the composition of Fuel solved in two different ways.
  • the first variant of the method according to the invention consists in that coming from the wet slag wet Combustion residues first by a mechanical Separation process are divided into two fractions, whereupon the essentially a coarse fraction and an oversize fraction having main fraction with withdrawn from the wet slagger Washed water while adhering smaller Parts are separated and that the washing water with the during the washing process recorded finer parts of the Wet slag is fed.
  • a higher proportion of leachable pollutants such as salts or heavy metals
  • the treatment is made in such a way that the from the Wet slagger coming wet combustion residues first by a mechanical separation process in two Fractions are split, after which the separated, essentially a coarse fraction and an oversize fraction Main fraction subjected to a crushing process and then out of the wet slagger washed off water and that the wash water with the finer parts taken during the washing process fed to the wet slagger.
  • the resulting in the mechanical separation ultrafine fraction and fine fraction are in a further embodiment of the invention fed to the combustion process. These fractions are again subjected to a combustion process, thus reducing the possibility of melting and sintering consists of these fractions.
  • the level can be maintained in the wet slagger, because of the discharged amount of combustion residues always water is mitabdress, reducing the amount of water in the wet slag decreases and filled up anyway would have to be. Since the water coming from the final rinse has only low calcium and sulphate contents not the risk of clogging pipes or nozzles.
  • the main fraction still large proportions of an oversize fraction which usually has a high scrap content possesses, in a further embodiment of the invention the coarse fraction another mechanical separation process be subjected.
  • the finest fraction about a grain size from 0 to 2mm, the fine fraction at a grain size of 2 to 8mm, the coarse fraction with a grain size of 8 to 32mm and the oversize fraction are at a grain size over 32mm should.
  • these values are only for better understanding of a Groborient ist provided, of course each fraction a certain proportion of the underlying may contain finer fraction, as long as the finer fraction is of secondary importance.
  • the Fine fraction coming directly from the purifier and having a grain size of about 2-8 mm, those Proportion of combustion residues, preferably the Combustion process is fed back.
  • the second Process variant is, however, by the crushing process obtained a grain fraction, this fine fraction in the core distribution, but in terms of quality has a higher standard for reuse, so that this fine fraction called quality fine fraction can be.
  • a separation limit of 32mm is maintained, that is, if so the oversize fraction is deposited, so it is recommended to use a second mechanical Provide separation, which then for example at 8mm, with all parts that are smaller than 8mm, again be supplied to the combustion process.
  • the main fraction which is an oversize fraction and coarse fraction this way, not only from the big ones Scrap parts, but also from all other metal parts be released, which supplied to a separate recycling become.
  • the oversize fraction another crushing process to submit, as parts, for example larger than 32mm are little for this purpose are suitable.
  • the separated from the main fraction coarse fraction with the crushed combustion residues from the oversize crushing mixed to a first mixed fraction become. It may turn out to be expedient that subjected the mixed fraction to a mechanical separation process is, as in the crushing process and such Grain sizes incurred, which is undesirable for further utilization are and, for example, the combustion process should be returned.
  • the second Mixed fraction washed with water from the wet slagger and the ultrafine fraction is separated, it is ensured that the proportions below 2mm grain size, often particularly heavily polluted, of the recoverable Shares are separated.
  • the Slag with a grain size over 8mm which is a coarse fraction and an oversize fraction, becomes a wet treatment and that will be 1000 liters of water withdrawn from the wet slagger to this slag Wash while keeping fine parts below 8mm in size to wash off 15kg.
  • This laundry may conveniently on a sieve with a sieve passage of 8mm or smaller.
  • the slag water in conjunction with These fines and Feinstan turnover is the Wet slag fed again.
  • the washed slag is deducted and for recovery, for example in Road construction, used.
  • the deposited during the screening Fine fraction with a mass of about 100kg usually becomes again given to the grate firing, to a more extensive To achieve sintering. But it is also possible this Contribute to other treatment methods. 40 liters Inlet water or fresh water are supplied to the To compensate for water loss in the wet slagger by it occurs that the combustion residues in the discharge Of course, liquid from the wet slagger carry.
  • FIG. 3 shows a variant of the method according to the invention.
  • this modified process will be 1000kg of garbage an ash content of 220kg fed to a grate firing.
  • This wet slag becomes combustion residues deducted on the order of 336kg.
  • the weight gain is due to fine particles that over the Slag water recycling fed to the wet slagger become.
  • the wet slagger will be 40 liters of water as Balancing supplied for the discharged water.
  • the 336kg Slag or incineration residues reach a sieve with a separation grain size of 32mm.
  • the oversize fraction with a grain size of> 32mm is first a metal deposit fed.
  • the accumulating slag enters a crusher to slag of the order of 8mm to obtain.
  • This slag so obtained will be on another Sieve brought with a separation grain diameter of 8mm.
  • this mechanical separation will be 100kg slag or Combustion residues with a grain diameter of ⁇ 8mm deducted and preferably the grate firing again fed.
  • the remaining coarse fraction becomes a metal deposit fed.
  • the obtained metal parts and the metal parts of the metal deposit from that described above Process step are merged and a wet treatment fed to adhering slag parts rinse. This will be 20kg of ferrous and non-ferrous metals obtained, which are recycled.
  • the scrapped Slag or coarse fraction with a grain size of 8 to 32mm has a weight of 215kg.
  • 60kg of this are fed to a crusher and to a grain size> 2mm crushed.
  • the crushed Mass fed to the main stream of 155kg and a wet treatment on a sieve with 2mm cut size.
  • the washing water is used in an amount of 1000 liters taken from the wet slagger.
  • 155kg slag with a grain size of 8 to 32mm and a finer proportion of 45kg with a grain diameter from 2 to 8mm in front. These two factions will be recycled, while fines, the one Diameter of less than 2mm, the wet slagger be fed again.
  • the flow chart of Figure 4 shows the basic variant accordingly Figure 1 in conjunction with the addition of a precipitant for soluble heavy metals.
  • This precipitant is added to the wet slag to reduce the lead content of the Purifier water of usually 2mg / l to 0,05mg / l too reduce. This reduces the cargo of dissolved lead on 1mg, which with about 201 adhering slag water 200kg of wet-treated slag is present. Get 400g of lead during combustion into the exhaust gas.
  • the 400g Lead is divided so that 200g of lead in the slag of 200 kg remain after wet treatment of the recycling zugestschreibt be while 200g of lead with the fine fraction below 8mm back to the grate firing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Solid Wastes (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Incineration Of Waste (AREA)
EP03001178A 2002-03-27 2003-01-21 Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage Expired - Lifetime EP1348905B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10213789 2002-03-27
DE10213789A DE10213789B4 (de) 2002-03-27 2002-03-27 Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage

Publications (2)

Publication Number Publication Date
EP1348905A1 EP1348905A1 (de) 2003-10-01
EP1348905B1 true EP1348905B1 (de) 2005-03-16

Family

ID=27798212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001178A Expired - Lifetime EP1348905B1 (de) 2002-03-27 2003-01-21 Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage

Country Status (11)

Country Link
US (1) US6814013B2 (pt)
EP (1) EP1348905B1 (pt)
AT (1) ATE291199T1 (pt)
BR (1) BR0300779B1 (pt)
CA (1) CA2423437C (pt)
DE (2) DE10213789B4 (pt)
DK (1) DK1348905T3 (pt)
ES (1) ES2239736T3 (pt)
PL (1) PL201249B1 (pt)
PT (1) PT1348905E (pt)
RU (1) RU2258180C2 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0604907D0 (en) * 2006-03-10 2006-04-19 Morgan Everett Ltd Pyrolysis apparatus and method
US9074149B2 (en) * 2009-01-21 2015-07-07 Lummus Technology Inc. Methods and systems for treating a gasification slag product
DE102011013033A1 (de) * 2011-03-04 2012-09-06 Alexandra Beckmann Aufbereiten von Müllverbrennungsasche
DE102011013030A1 (de) * 2011-03-04 2012-09-06 Alexandra Beckmann Aufbereiten von Müllverbrennungsasche
ITMI20111333A1 (it) * 2011-07-18 2013-01-19 Aprica S P A Metodo ed impianto di trattamento di ceneri pesanti
EP2931926B8 (de) * 2012-12-11 2019-02-27 LAB GmbH Verfahren zur rückgewinnung von wertstoffen aus schlacke
EP3022489B1 (de) * 2013-07-17 2017-09-06 Georg Schons Verfahren zum aufbereiten von schlacke in müllverbrennungsanlagen sowie müllverbrennungsanlage
JP6417617B1 (ja) * 2018-02-09 2018-11-07 三菱重工環境・化学エンジニアリング株式会社 灰押出装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701606C (de) 1938-04-08 1941-01-20 Bromsregulator Svenska Ab Gestaengeanordnung fuer Eisenbahnwagenbremsen
US3745941A (en) * 1971-12-03 1973-07-17 B Reilly Slagging refuse incinerators
CH635755A5 (en) * 1978-07-14 1983-04-29 Entstaubungstechnik Ag Process and equipment for scrubbing flue gases
CH676116A5 (en) * 1988-03-24 1990-12-14 Ammann U Maschf Ag Gravel substitute prodn. from waste slag - of an incineration plant by water washing and sieving after removing large particles and ferrous material
US5143304A (en) 1988-06-16 1992-09-01 Leo Schwyter Ag Process and device for processing residues from refuse incinerators
DE8915970U1 (pt) * 1989-09-02 1992-07-23 Oschatz Gmbh, 4300 Essen, De
DE4123277C1 (en) * 1991-07-13 1993-05-27 Rwe Entsorgung Ag, 4300 Essen, De Handling waste combustion slag allowing removal of valuable materials - by reducing raw slag material and then removing dust components and wet sorting to separate light fraction
US6199492B1 (en) * 1992-02-26 2001-03-13 KüNSTLER JOHANN HANS Process for melting down combustion residues into slag
DE4423927A1 (de) 1994-07-07 1996-01-11 Abb Research Ltd Verfahren zum Rückgewinnen von Wertstoffen aus Müllverbrennungsschlacke
DE4429958A1 (de) * 1994-08-24 1996-02-29 Noell Abfall & Energietech Verfahren und Vorrichtung zur thermischen Behandlung von Rostschlacken
TW277101B (en) * 1995-01-21 1996-06-01 Abb Man Ag Process for treating slag from refuse incineration plants
DK90796A (da) * 1996-08-28 1998-03-01 Thomas Hoejlund Christensen Metode til udvaskning og kemisk stabilisering af flyveaske, røgrensningsprodukter og andre metalholdige materialer
EP0862019B1 (de) * 1997-02-28 2003-01-08 Alstom Verfahren und Vorrichtung zur thermischen Behandlung von Flugstäuben aus Rostverbrennungsanlagen
DE19738593A1 (de) * 1997-09-04 1999-03-11 Babcock Anlagen Gmbh Verfahren zum Stabilisieren von Aschen oder Schlacken aus Anlagen der thermischen Abfallbehandlung
EP0908674A1 (de) * 1997-10-13 1999-04-14 Asea Brown Boveri AG Verfahren zur Verbrennung von Müll in einem Verbrennungsofen und zur Aufbereitung der Schlacke aus der Müllverbrennung
DE19820038C2 (de) * 1998-05-05 2000-03-23 Martin Umwelt & Energietech Verfahren zum Regeln der Feuerleistung von Verbrennungsanlagen

Also Published As

Publication number Publication date
ATE291199T1 (de) 2005-04-15
US6814013B2 (en) 2004-11-09
DE10213789B4 (de) 2006-04-20
PL201249B1 (pl) 2009-03-31
CA2423437A1 (en) 2003-09-27
DE10213789A1 (de) 2003-10-23
CA2423437C (en) 2008-06-17
PL359320A1 (en) 2003-10-06
US20030183137A1 (en) 2003-10-02
DE50300353D1 (de) 2005-04-21
BR0300779B1 (pt) 2011-07-26
BR0300779A (pt) 2004-08-17
EP1348905A1 (de) 2003-10-01
RU2258180C2 (ru) 2005-08-10
ES2239736T3 (es) 2005-10-01
DK1348905T3 (da) 2005-06-27
PT1348905E (pt) 2005-07-29

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