EP1001218A2 - Wassergekühlter Verbrennungsrost, sowie Verfahren zum Verbrennen von Kehricht auf demselben - Google Patents
Wassergekühlter Verbrennungsrost, sowie Verfahren zum Verbrennen von Kehricht auf demselben Download PDFInfo
- Publication number
- EP1001218A2 EP1001218A2 EP99810954A EP99810954A EP1001218A2 EP 1001218 A2 EP1001218 A2 EP 1001218A2 EP 99810954 A EP99810954 A EP 99810954A EP 99810954 A EP99810954 A EP 99810954A EP 1001218 A2 EP1001218 A2 EP 1001218A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- grate
- feed
- combustion
- water
- primary air
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 title claims description 49
- 239000002699 waste material Substances 0.000 title claims description 17
- 230000008569 process Effects 0.000 title description 2
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims description 35
- 238000010304 firing Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 16
- 230000032258 transport Effects 0.000 description 12
- 241000196324 Embryophyta Species 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 206010012735 Diarrhoea Diseases 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000010849 combustible waste Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H7/00—Inclined or stepped grates
- F23H7/06—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
- F23H7/08—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding reciprocating along their axes
-
- 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
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H3/00—Grates with hollow bars
- F23H3/02—Grates with hollow bars internally cooled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
- F23L1/02—Passages or apertures for delivering primary air for combustion by discharging the air below the fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H2900/00—Special features of combustion grates
- F23H2900/03021—Liquid cooled grates
Definitions
- a combustion air supply defined at any time and at any location on the grate is the most important prerequisite for the operation of a waste furnace, which should have the lowest possible emissions. Reaching this goal is becoming more and more difficult in practice because of the quality of the refuse in the course of the operating life designed for at least 20 years a waste incineration plant varies. In addition to the basic physical and chemical composition of the garbage it is especially the very widely varying calorific value of the refuse, which causes problems. Rose the Calorific value just a few years ago as a result of commercial waste and sorting of difficultly flammable materials such as green waste and compostable Substances continuously to approx.
- the individual grate plates 5,6 are made of sheet steel and also designed as a hollow body, which is inevitably made of water are flowed through that their cavity is always completely filled with water and no air bubbles can form inside. All steel sheet parts of the grate, be it the side planks 8.9 or the grate plates 5.6, which with coming into contact with the firing material are therefore on the rear side of the sheet constantly covered by water. So everyone can come into contact with fire Parts are constantly cooled and kept at a stable temperature so that practically no dilations occur. It is therefore not necessary to the side of the Provide any compensation elements.
- the grate plates 5.6 either extend individually over the entire width of the grate track or in a variant several grate plates are connected together so that they Cover the entire width of the grate track without slits between them and thereby hardly any rust diarrhea occurs, which is due to the ones under the grate Fitters could fall down.
- several grate plates become one Grate step can be connected together, for example by screwing them together or welding such individual grate plates together take place, each of which extends over part of the grating track width.
- two, three or more grate plates arranged side by side can be used can be combined into a single grate level.
- This design allows individual longitudinal sections of a grate track in the Prepare the workshop ready for installation and complete such grate track sections on site assemble quickly. Complicated special transports on the one hand or protracted on-site assembly work is avoided.
- the Water cooling of the grate plates takes place through connections on the square tube 10, in which cooling water flows from bottom to top. It is based on one open expansion tank, which is, for example, at the level of Dispenser gutter or higher located, through a line by means of a Electric pump pumped down into the square tube 10 and therein at a pressure held by 3-4 bar. Two adjacent grate plates become one in series Cooling circuit switched, since together they always have a constant grate surface form.
- the primary air openings 25 of the first six grate plates 5, 6 are assigned to the primary air zone 32, those of the next eight grate plates 5,6 are fed from the primary air zone 33, and the last seven grate plates 5,6 are supplied with primary air from the primary air zone 34.
- These different primary air zones 32-34 are separate from each other and additional can target combustion-promoting gases to each of these zones Pure oxygen, for example.
- a push-back grate 31 is attached, which has a greater inclination, here 26 °, because the firing material is due to a moving-back grate alone gravity is transported.
- This sliding grate 31 out in the same way water-cooled stationary 5 and movable arranged therebetween Grate plates 6 are divided into two primary air zones 35 and 36.
- each movable grate is individually movable, both in relation to the respective stroke length as well as in relation to the stroke speed and the frequency of the batches, the firing material lying on the grate can be local and treated separately in terms of time and transported by name and be stoked.
- the primary air supply can be regulated zone by zone and the addition of oxygen when required can also be difficult help combustible materials to burn out completely. This rust allows hence a much more universal adjustment of the significant conditions for the Burning out of a certain product to be burned. It can therefore targeted consideration of the calorific values and the composition of the rubbish be taken and optimal burnout can be achieved in any case.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
Description
- Figur 1:
- Ein Längsabschnitt eines wassergekühlten Schubrostes in einer perspektivischen Ansicht, mit zum Teil entfernten Rostplatten;
- Figur 2:
- Eine Kombination eines Vorschubrostes mit einem Rückschubrost, von der Seite her gesehen in einem Längsschnitt, schematisch dargestellt;
- Figur 3-5:
- Verschiedene Phasen im Zug der Verbrennung einer Charge von Kehricht auf einer Kombination eines Vorschub- und eines Rückschubrostes, die hierzu für die Betrachtung herausgegriffen sind;
Claims (10)
- Wassergekühlter Verbrennungsrost zum Verbrennen von Kehricht, bestehend aus wassergekühlten, aufeinander liegenden Rostplatten (5,6), die sich über einen Teil der Rostbahnbreite oder über die ganze Rostbahnbreite erstrecken und je eine Roststufe bilden, wobei mindestens jede zweite Roststufe beweglich ausgeführt ist, und der von Primärluftzufuhröffnungen (25) durchsetzt ist, durch welche einzeln oder zonenweise Pirmärluft dosiert dem Feuer zuführbar ist, dadurch gekennzeichnet, dass der Verbrennungsrost aus einer Kombination eines Vorschub- (30) und eines Rückschubrostes (31) besteht.
- Wassergekühlter Verbrennungsrost nach Anspruch 1, dadurch gekennzeichnet, dass in Beschickrichtung zuerst ein Vorschubrost (30) angeordnet ist, und anschliessend an den Vorschubrost (30) ein Rückschubrost (31) mit grösserer Neigung so angeordnet ist, dass er vom Vorschubrost (30) beschickbar ist.
- Wassergekühlter Verbrennungsrost nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass über den Mündungen der Primärluftzufuhröffnungen (25) Leitelemente auf dem Rost angeordnet sind, auf welche die austretende Primärluft zwecks diffuser Verteilung und Vermeidung von Durchbläsern aufzutreffen bestimmt ist.
- Wassergekühlter Verbrennungsrost nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sowohl dem Vorschubrost (30) wie auch dem Rückschubrost (31) je mehrere separate Zonen (32-36) mit eigenem Luftgebläse zugeordnet sind, über welche durch den Rost von unten Primärluft in das Brennbett zuführbar ist.
- Wassergekühlter Verbrennungsrost nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Zufuhrkanäle den Vorschubrost (30) oder den Rückschubrost (31) durchsetzen, durch welche zu verbrennendes Medium durch den Rost hindurch direkt von unten in das Brennbett einpressbar ist.
- Verfahren zum Verbrennen von Kehricht auf einem Verbrennungsrost nach Anspruch 1, das dadurch gekennzeichnet ist, dassa) das ankommende Brenngut auf dem Vorschubrost (30) mittels individueller Steuerung der Hublänge und Hubfrequenz der einzelnen Rostplatten (6) zu einem gleichmässigen Brennbett (38) auseinandergezogen und dann als solches unter Ausbrand der leicht brennbaren Stoffe weiter transportiert wird und schliesslich auf den nachgeschalteten Rückschubrost (31) gelangt,b) das Brenngut auf dem nachgeschalteten Rückschubrost (31) mittels individueller Steuerung der Hublänge und Hubfrequenz der einzelnen Rostplatten (6) so lange geschürt wird, bis ein möglichst vollständiger Ausbrand aller Stoffe erreicht ist.
- Verfahren zum Verbrennen von Kehricht nach Anspruch 6, dadurch gekennzeichnet, dassaa) im ersten Rostbereich das Brenngut mittels individueller Steuerung der Hublänge und Hubfrequenz der einzelnen Rostplatten (6) des dortigen Vorschubrostes (30) das Brenngut zu einem gleichmässigen Brennbett (38) auseinandergezogen wird,ab) im zweiten Bereich des Vorschubrostes (30) das gleichmässige Brennbett (38) mittels individueller Steuerung der Hublänge und Hubfrequenz der einzelnen Rostplatten (6) so schnell bzw. langsam transportiert wird, dass die leicht brennbaren Stoffe restlos ausbrennen,b) auf dem nachgeschalteten Rückschubrost (31) die noch nicht ausgebrannten Stoffe mittels individueller Steuerung der Hublänge und Hubfrequenz der einzelnen Rostplatten (6) solange geschürt werden, bis sie vollständig ausgebrannt sind.
- Verfahren zum Verbrennen von Kehricht nach einem der Ansprüche 6 bis 7, dadurch gekennzeichnet, dass die Primärluft für den Vorschub- (30) und den Rückschubrost (31) zonenweise separat über gesonderte Luftgebläse zugeführt wird, und der Primärluft bedarfsweise zonenweise gezielt reiner Sauerstoff zudosiert wird.
- Verfahren zum Verbrennen von Kehricht nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Steuerung von Schürung, Transport und zonenweiser Primärluftzufuhr sowie allenfalls der zonenweisen Zudosierung von Sauerstoff abhängig von wenigstens der Temperatur der Rückläufe der Wasserkühlung der einzelnen Rostplatten (5,6) gesteuert wird.
- Verfahren zum Verbrennen von Kehricht nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass zu verbrennende Medien über Zufuhrkanäle, welche den Vorschubrost (30) oder den Rückschubrost (31) durchsetzen, durch den Rost hindurch direkt von unten in das Brennbett eingepresst werden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH224798 | 1998-11-10 | ||
| CH224798 | 1998-11-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1001218A2 true EP1001218A2 (de) | 2000-05-17 |
| EP1001218A3 EP1001218A3 (de) | 2000-12-06 |
| EP1001218B1 EP1001218B1 (de) | 2001-12-12 |
Family
ID=4229312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99810954A Expired - Lifetime EP1001218B1 (de) | 1998-11-10 | 1999-10-20 | Wassergekühlter Verbrennungsrost, sowie Verfahren zum Verbrennen von Kehricht auf demselben |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1001218B1 (de) |
| AT (1) | ATE210800T1 (de) |
| DE (1) | DE59900534D1 (de) |
| DK (1) | DK1001218T3 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025459A1 (en) * | 2001-09-14 | 2003-03-27 | Fls Miljø A/S | A boiler and a process for the extraction of energy from a fuel |
| EP1394468A1 (de) | 2002-08-29 | 2004-03-03 | Von Roll Umwelttechnik AG | Rostelement für einen Rost einer Abfallverbrennungsanlage |
| CN101922715A (zh) * | 2010-09-01 | 2010-12-22 | 重庆科技学院 | 两段式垃圾焚烧炉 |
| CN110242959A (zh) * | 2019-05-09 | 2019-09-17 | 重庆三峰卡万塔环境产业有限公司 | 一种逆推炉排的两段无阶差驱动装置 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011017833A1 (zh) * | 2009-08-10 | 2011-02-17 | 东南大学 | 生物质直燃锅炉双向非均匀匹配布风水冷振动炉排 |
| DE102014008858A1 (de) | 2014-06-16 | 2015-12-17 | Joachim Kümmel | Verfahren zur Verbrennung von Abfall und Biomassen auf einem Flossenwand-Stufenrost sowie Vorrichtung zur Durchführung des Verfahrens |
| FI20215661A1 (fi) | 2021-06-07 | 2022-12-08 | Ariterm Service Oy | Nestejäähdytteinen arina kiinteän polttoaineen polttimessa |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0621449A1 (de) | 1993-04-20 | 1994-10-26 | Doikos Investments Ltd | Verfahren zum Verbrennen von Kehricht auf einem Verbrennungsrost sowie Verbrennungsrost zur Ausübung des Verfahrens und Rostplatte zur Herstellung eines solchen Verbrennungsrostes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1908992A (en) * | 1926-01-29 | 1933-05-16 | Martin Josef | Stoking grate |
| DK0693169T3 (da) * | 1994-02-07 | 2000-03-27 | Seghers Better Technology Grou | Fremgangsmåde til forbrænding af faststoffer på et skubbe-forbrændingsrist-system |
| DE4429958A1 (de) * | 1994-08-24 | 1996-02-29 | Noell Abfall & Energietech | Verfahren und Vorrichtung zur thermischen Behandlung von Rostschlacken |
| DE19650742C1 (de) * | 1996-12-06 | 1998-02-19 | Metallgesellschaft Ag | Mit Wasser gekühlter Verbrennungsrost |
-
1999
- 1999-10-20 DK DK99810954T patent/DK1001218T3/da active
- 1999-10-20 DE DE59900534T patent/DE59900534D1/de not_active Expired - Fee Related
- 1999-10-20 AT AT99810954T patent/ATE210800T1/de not_active IP Right Cessation
- 1999-10-20 EP EP99810954A patent/EP1001218B1/de not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0621449A1 (de) | 1993-04-20 | 1994-10-26 | Doikos Investments Ltd | Verfahren zum Verbrennen von Kehricht auf einem Verbrennungsrost sowie Verbrennungsrost zur Ausübung des Verfahrens und Rostplatte zur Herstellung eines solchen Verbrennungsrostes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025459A1 (en) * | 2001-09-14 | 2003-03-27 | Fls Miljø A/S | A boiler and a process for the extraction of energy from a fuel |
| EP1394468A1 (de) | 2002-08-29 | 2004-03-03 | Von Roll Umwelttechnik AG | Rostelement für einen Rost einer Abfallverbrennungsanlage |
| CN101922715A (zh) * | 2010-09-01 | 2010-12-22 | 重庆科技学院 | 两段式垃圾焚烧炉 |
| CN110242959A (zh) * | 2019-05-09 | 2019-09-17 | 重庆三峰卡万塔环境产业有限公司 | 一种逆推炉排的两段无阶差驱动装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE210800T1 (de) | 2001-12-15 |
| DK1001218T3 (da) | 2002-04-08 |
| EP1001218B1 (de) | 2001-12-12 |
| DE59900534D1 (de) | 2002-01-24 |
| EP1001218A3 (de) | 2000-12-06 |
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