EP0722777B1 - Procédé de traitement de scories provenant d'installations d'incinération de déchets - Google Patents
Procédé de traitement de scories provenant d'installations d'incinération de déchets Download PDFInfo
- Publication number
- EP0722777B1 EP0722777B1 EP95810783A EP95810783A EP0722777B1 EP 0722777 B1 EP0722777 B1 EP 0722777B1 EP 95810783 A EP95810783 A EP 95810783A EP 95810783 A EP95810783 A EP 95810783A EP 0722777 B1 EP0722777 B1 EP 0722777B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screening stage
- screen
- fraction
- stage
- slag
- 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
Links
- 239000002893 slag Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012545 processing Methods 0.000 title claims abstract description 7
- 238000004056 waste incineration Methods 0.000 title claims description 8
- 239000002245 particle Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000012216 screening Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- -1 ferrous metals Chemical class 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims 3
- 230000007717 exclusion Effects 0.000 claims 2
- 238000003723 Smelting Methods 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 239000005425 throughfall Substances 0.000 abstract 2
- 238000007873 sieving Methods 0.000 description 8
- 239000002956 ash Substances 0.000 description 6
- 206010012735 Diarrhoea Diseases 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 238000001784 detoxification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
Definitions
- the invention relates to a method for processing of slag from waste incineration plants, in which the raw slag after passing the grate directly and without prior quenching in a water bath in at least two Fractions being separated, and these two fractions separated be treated further, the coarse fraction using a wet detoxifier is fed.
- Such a processing method is, for example, from known from EP-0 437 679 B1.
- the slag is released immediately after the furnace quenched in a wet purifier. Without additional Washing the slag can be lowered of the heavy metal content in the slag and not achieve it considerable amounts of toxins remain in the Slag.
- EP-0 437 679 describes a method for treating residues a waste incineration plant known, in which the raw slag after passing through the grate in two Fractions is separated. The rust slag, boiler ash and rust diarrhea separated into two fractions. The fraction with components whose diameter is less than 100 to 300 mm, is melted in a separate melting furnace, the larger components of the grate and boiler ash are introduced into a wet slag remover.
- the invention as characterized in the claims is, the task is based on a method of the beginning Specify the type mentioned, the simple separation of the Fine fraction enables air to be sealed off from the combustion chamber and cooling the second fraction with simple Means can be achieved.
- Waste is burned in an incinerator 1.
- the one there smoke gases and entrained particles are in a known manner a separation and filter stage 2 prepared, for example described and shown in EP-0 437 679 B1 is.
- the grate ash gets directly from the grate into a first sieve stage 3. This is preferably a sieve conveyor grate educated.
- Such devices are known and are in addition to other areas of application also in waste incineration plants used to screen the fine fraction (see brochure "Jost sieve conveyor grates" from Jost AG Maschinenfabrik, CH-3627 Heimberg, FOT 1.92 - 3000, undated).
- this first Sieve stage is the separation of the raw slag into one Fine fraction with particle diameters smaller than 25 ... 35 mm and a corresponding coarse fraction.
- the coarse fraction arrives as Sieve overflow in a wet slag 4 known design. This also provides the air seal on the coarse fraction side safe from the inside of the oven.
- the fine fraction smaller than 25 ... 35 mm becomes a second sieving stage, e.g. a strainer screen or preferably one Vibrating sieve also of known design, supplied.
- the second sieve stage 5 also the rust diarrhea from the Incinerator 1 are supplied, which in the figure by a dashed line is symbolized.
- 2 mm is specially treated, e.g. melted in a melting furnace 7.
- the sieve overflow of the second sieve stage 5 is in a grinding stage 6 mechanically crushed, e.g. in a ball mill.
- the ground is then Good in a third (optional) screening stage 8, e.g. one Bar sieve, again separated into two fractions, namely one Fine fraction with particle size 0 ... 2 mm and a coarse fraction greater than 2 mm.
- the fine fraction - it contains compared to Fine fraction 0 ... 2 mm of the second sieving stage 5 fewer pollutants - Is also fed to the melting furnace 7, the Coarse fraction - it essentially only consists of Inert substances - can be deposited.
- a sorting stage between the grinding stage 6 and the third sieving stage 8 9 be interposed in order to already have metal parts, preferably separated according to ferrous and non-ferrous metals, and to discard other inert substances.
- a discharge device preferably a screw conveyor 10 to provide the cooling and Air sealing functions combined.
- This screw conveyor 10 also serves as an air seal the fine fraction side of the first sieve stage 3 opposite the incinerator 1 and also acts as a cooling device for the Ash cooling because of the design of a screw conveyor the goods to be conveyed over a large area with the screw conveyors in Comes into contact and the latter can simply be cooled. Should the screw conveyor 10 function as Airlock can prove to be inefficient, this can a double pendulum flap 11, also in the literature double-leaf butterfly valve, can be connected.
- Burnt out slag 12 falls at the end of the grate 13 in a slag shaft 14, the walls of which so far are drawn down that they dip into the wet slag 4.
- Deflection flap 15 is pivotally arranged. As a rule, this is Deflection flap 15 swung out of its vertical position and closes the direct access to the wet slag remover 4.
- Burnt-out slag then becomes the first screening stage 3 supplied, which is preferably designed as a sieve conveyor grate is.
- the sieve overflow of the first sieve stage 3 goes directly into the wet slag remover 4 below the sieve stage 3.
- the arrangement is taken so that the sieve overflow into one Shaft 16 falls, the walls 17, 18 of which are pulled down so far are that they end below water level 19. On in this way the air is sealed off from the slag shaft 14 and thus reached the inside of the oven.
- the sieve diarrhea is in one or more funnels 20, 21 caught under the first sieving stage 3 and over suitable Discharge devices 10, e.g. Screw conveyors or trough chain conveyors, carried out separately and dry and is as in Further described in connection with Fig.1.
- suitable Discharge devices e.g. Screw conveyors or trough chain conveyors, carried out separately and dry and is as in Further described in connection with Fig.1.
- the deflection flap 15 can be vertical be placed (shown in broken lines in Fig. 3), so that the entire slag is discharged conventionally (wet) can.
Claims (9)
- Procédé de traitement de mâchefers provenant d'installations d'incinération d'ordures . ménagères, dans lequel les mâchefers bruts sont séparés en au moins deux fractions, directement et sans refroidissement brusque préalable dans un bain d'eau, après leur passage par la grille de chauffe et ces deux fractions sont ensuite traitées séparément, la fraction de particules grosses étant amenée dans un décrasseur par voie humide (4), caractérisé en ce que la première fraction ayant une taille de particules jusqu'à 80 mm, de préférence jusqu'à environ 32 mm, est séparée dans une première phase de tamisage (3) et le refus de tamisage de la première phase de tamisage (3) est amené au décrasseur par voie humide, en ce que le passé de tamisage et, le cas échéant, le passé de grille de la grille de combustion sont amenés à une deuxième phase de tamisage (5) en vue d'une séparation des particules fines de 0 à 2 mm, en ce que le refus de tamisage de la deuxième phase de tamisage est le cas échéant fragmenté mécaniquement, après tri des substances métalliques et inertes, et le passé de la deuxième phase de tamisage (5) est amené à un traitement spécial, par exemple dans un four de fusion (7).
- Procédé suivant la revendication 1, caractérisé en ce que le refus de tamisage de la deuxième phase de tamisage est amené, après fragmentation mécanique, à une troisième phase de tamisage (8), et les particules fines de 0 à 2 mm de cette troisième phase de tamisage sont amenées également à un traitement spécial, et sont de préférence traitées spécialement avec le passé extrait dans la deuxième phase de tamisage (5).
- Procédé suivant la revendication 1 ou 2, caractérisé en ce que la première phase de tamisage (3) est intégrée dans la grille de chauffe de l'incinérateur (1) ou la suit directement.
- Procédé suivant la revendication 3, caractérisé en ce qu'on utilise comme première phase de tamisage (3) une grille mobile à tamis et/ou comme deuxième phase de tamisage (5) un tamis vibrant.
- Procédé suivant la revendication 3 ou 4, caractérisé en ce que le refus de tamisage de la première phase de tamisage (3) est directement amené au décrasseur par voie humide (4).
- Procédé suivant l'une des revendications 1 à 5, caractérisé en ce que le transport du passé de la première phase de tamisage (3) à la deuxième phase de tamisage (5) s'effectue au moyen d'un organe d'évacuation (10) qui fait en même temps office d'organe d'étanchéité à l'air.
- Procédé suivant la revendication 6, caractérisé en ce qu'un refroidissement du produit à évacuer s'effectue en même temps dans l'organe d'évacuation (10).
- Procédé suivant la revendication 6 ou 7, caractérisé en ce que l'étanchéité à l'air est réalisée en plus au moyen d'une disposition d'un double clapet oscillant (12) qui est monté en aval de l'organe d'évacuation (10).
- Procédé suivant l'une des revendications 2 à 8, caractérisé en ce qu'une phase de tri (9) est intercalée entre la deuxième (5) et la troisième (8) phase de tamisage pour éliminer des métaux, de préférence séparés en métaux ferreux et métaux non-ferreux, et d'autres substances inertes.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19501830 | 1995-01-21 | ||
| DE19501830A DE19501830A1 (de) | 1995-01-21 | 1995-01-21 | Verfahren zum Aufbereiten von Schlacke aus Müllverbrennungsanlagen |
| DE19508293 | 1995-03-09 | ||
| DE1995108293 DE19508293A1 (de) | 1995-03-09 | 1995-03-09 | Verfahren zum Aufbereiten von Schlacke aus Müllverbrennungsanlagen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0722777A1 EP0722777A1 (fr) | 1996-07-24 |
| EP0722777B1 true EP0722777B1 (fr) | 2000-05-31 |
Family
ID=26011768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95810783A Expired - Lifetime EP0722777B1 (fr) | 1995-01-21 | 1995-12-11 | Procédé de traitement de scories provenant d'installations d'incinération de déchets |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5671688A (fr) |
| EP (1) | EP0722777B1 (fr) |
| JP (1) | JP4149529B2 (fr) |
| KR (1) | KR100404642B1 (fr) |
| AT (1) | ATE193466T1 (fr) |
| DE (1) | DE59508422D1 (fr) |
| DK (1) | DK0722777T3 (fr) |
| ES (1) | ES2148466T3 (fr) |
| NO (1) | NO309365B1 (fr) |
| PT (1) | PT722777E (fr) |
| TW (1) | TW277101B (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0908673B1 (fr) | 1997-10-13 | 2002-05-15 | Alstom | Procédé de traitement de scories provenants du traitement thermique de déchets |
| EP0908674A1 (fr) * | 1997-10-13 | 1999-04-14 | Asea Brown Boveri AG | Procédé pour la combustion de déchets dans un incinérateur et pour le traitement des scories provenants de l'incinération |
| 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 |
| DE10213789B4 (de) * | 2002-03-27 | 2006-04-20 | Martin GmbH für Umwelt- und Energietechnik | Verfahren zur Behandlung von Verbrennungsrückständen einer Verbrennungsanlage |
| DE10306132A1 (de) * | 2003-02-14 | 2004-08-26 | Gerhard Scherer | Aufbereitung von Schlacke aus Kehrichtverbrennungsanlagen |
| RU2359930C2 (ru) * | 2007-07-04 | 2009-06-27 | Техком Гмбх | Способ обработки шлака после его выхода из металлургической емкости и устройство для его осуществления |
| CA2886896C (fr) | 2012-10-12 | 2020-03-10 | Blue Sky Mines Ltd. | Procedes et systemes permettant de traiter des dechets incineres |
| WO2015007314A1 (fr) | 2013-07-17 | 2015-01-22 | Georg Schons | Procédé permettant de traiter une scorie dans des installations d'incinération de déchets et installation d'incinération de déchets |
| US10180254B2 (en) * | 2014-09-16 | 2019-01-15 | Hitachi Zosen Inova Ag | Method and device for processing slag occurring in a combustion chamber of a refuse incineration plant |
| DE102014115854A1 (de) | 2014-10-30 | 2016-05-04 | Georg Schons | Verfahren zur Handhabung von Schlacke und Rostdurchfall einer Müllverbrennungsanlage sowie Müllverbrennungsanlage |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0368962B1 (fr) * | 1988-05-31 | 1993-03-10 | Leo Schwyter Ag | Procede et installation pour l'epuration des scories d'un four d'incineration de dechets |
| WO1989012609A1 (fr) * | 1988-06-16 | 1989-12-28 | Leo Schwyter Ag | Procede et dispositif de traitement de scories de fours d'incineration de dechets |
| DE3939344C2 (de) * | 1989-11-29 | 1993-11-04 | Babcock Anlagen Gmbh | Verfahren zum behandeln von rueckstaenden einer abfallverbrennungsanlage und abfallverbrennungsanlage zur durchfuehrung des verfahrens |
| DE4117444C2 (de) * | 1991-05-28 | 1993-11-11 | Babcock Anlagen Gmbh | Verfahren zum Behandeln von Rückständen einer Abfallverbrennungsanlage und Abfallverbrennungsanlage zur Durchführung des Verfahrens |
| US5356082A (en) * | 1991-06-21 | 1994-10-18 | Resource Recycling, Inc. | Incinerated waste material treatment |
-
1995
- 1995-10-30 TW TW084111469A patent/TW277101B/zh not_active IP Right Cessation
- 1995-11-24 KR KR1019950043641A patent/KR100404642B1/ko not_active IP Right Cessation
- 1995-12-07 US US08/568,837 patent/US5671688A/en not_active Expired - Lifetime
- 1995-12-11 AT AT95810783T patent/ATE193466T1/de active
- 1995-12-11 DE DE59508422T patent/DE59508422D1/de not_active Expired - Lifetime
- 1995-12-11 DK DK95810783T patent/DK0722777T3/da active
- 1995-12-11 PT PT95810783T patent/PT722777E/pt unknown
- 1995-12-11 EP EP95810783A patent/EP0722777B1/fr not_active Expired - Lifetime
- 1995-12-11 ES ES95810783T patent/ES2148466T3/es not_active Expired - Lifetime
-
1996
- 1996-01-18 JP JP00657696A patent/JP4149529B2/ja not_active Expired - Lifetime
- 1996-01-19 NO NO960233A patent/NO309365B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO960233D0 (no) | 1996-01-19 |
| KR960028976A (ko) | 1996-08-17 |
| EP0722777A1 (fr) | 1996-07-24 |
| NO309365B1 (no) | 2001-01-22 |
| JP4149529B2 (ja) | 2008-09-10 |
| DK0722777T3 (da) | 2000-10-09 |
| PT722777E (pt) | 2000-11-30 |
| TW277101B (en) | 1996-06-01 |
| JPH08229430A (ja) | 1996-09-10 |
| KR100404642B1 (ko) | 2004-01-28 |
| DE59508422D1 (de) | 2000-07-06 |
| ES2148466T3 (es) | 2000-10-16 |
| NO960233L (no) | 1996-07-22 |
| ATE193466T1 (de) | 2000-06-15 |
| US5671688A (en) | 1997-09-30 |
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