EP0915294A1 - Wassergekühlter Feuerungsrost - Google Patents
Wassergekühlter Feuerungsrost Download PDFInfo
- Publication number
- EP0915294A1 EP0915294A1 EP98120480A EP98120480A EP0915294A1 EP 0915294 A1 EP0915294 A1 EP 0915294A1 EP 98120480 A EP98120480 A EP 98120480A EP 98120480 A EP98120480 A EP 98120480A EP 0915294 A1 EP0915294 A1 EP 0915294A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grate
- pipes
- firing
- area
- grate according
- 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
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Classifications
-
- 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
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H2900/00—Special features of combustion grates
- F23H2900/03021—Liquid cooled grates
Definitions
- the invention relates to a water-cooled grate for incinerators.
- Firing grates of this type are used, for example, in waste incineration plants. They usually consist of individual grate rows, which are arranged one behind the other and lie on top of each other like roof tiles. A fixed and a moving row alternate. The movement of the individual rows causes the fuel to be transported through the furnace and the combustion bed to be stoked.
- the grate rows can consist of individual grate bars, which are tightly connected to one another, or of larger grate plates. Both cast and welded constructions are used.
- the grate bars are used in new systems often equipped with water cooling.
- the grate bars or plates show a construction with an internal duct through which Cooling water is passed. This allows low material temperatures achieve and almost exclude thermal wear.
- the cooling water supply is usually via a flow collector on a grate side. Individual pipelines branch from this collector, those in the underwind area (for example in the underwind funnels) be welded to the grate bar rows. This makes it gas-tight Passage into the underwind area, i.e. into the area below the Rust, where there is air pressure, created.
- the cooling water connection the rows of grates then take place, at least for the movable ones Rows of grate bars, via hose connections.
- the hoses will open one side with the pipes, on the other side with the grate rows connected.
- the cooling water passes through the individual grate bars and enters similarly on the other grate side into a return collector. It is also a series connection of several grate bars in Longitudinal direction possible.
- the disadvantage of these designs is that the hoses arranged in a temperature and dirt contaminated area and are difficult or not accessible during operation.
- the Hoses come with both ash and dust that go through the grate fall, as well as with molten non-ferrous metals, such as aluminum, in Contact. They are therefore an increased wear and a larger one Risk of damage.
- Plastic hoses must pass through Protected metal sheaths or less flexible metal hoses be used. Have hoses due to damage are replaced, this is associated with a plant shutdown.
- the present invention has for its object suitable Propose connections for a water-cooled grate that are insensitive to those below the grate prevailing conditions and easily during plant operation are accessible.
- the invention accordingly includes a water-cooled grate for incineration plants, in particular for the incineration of garbage, consisting of fixed and movable grate rows, with the supply and discharge of the cooling water to and from the movable grate rows moving along, insensitive to the dirt and temperature load in the underwind area Lines, such as pipes, ducts, etc., are carried out, the movements of the pipes being recorded via flexible connections that are outside the temperature and dirt-laden underwind area.
- the required special sealing of the cooling water inlet and outlet pipes in the underwind area takes place according to a preferred feature of the invention by means of a slot seal in the underwind funnel and a box structure applied outside the underwind funnel, which is sealed gas-tight with a cover plate.
- the pipes are led outside in a slot in the downwind funnel, which allows the movement of a full grate stroke.
- the slot is sealed with a moving disc so far that no dirt can escape from the underwind area.
- a box structure which can be closed gas-tight with a lid, is placed on the downwind funnel.
- the movement is compensated via a flexible connection, for example via a hose connection.
- the flexible connection is led through the box to the outside.
- Such an arrangement outside the underwind area is special advantageous because of contamination and damage to the flexible Connection is largely excluded.
- more flexible plastic or rubber hoses without metal sheathing with smaller bending radii are used.
- the accessibility for Maintenance, inspection or repair during operation is easily possible.
- the Box construction can also be equipped with a purge air connection, to ensure a targeted air flow from the box structure into the To achieve underwind. This can support the sealing effect and gas entry from the downwind area into the box structure be prevented.
- the grate sled 11 is not shown in FIGS. 1 and 2. To the FIG. 3 therefore provides a better understanding of the spatial arrangement. which in turn does not provide all the details of the construction according to the invention are removed.
- the downwind funnel 1 has a slot opening 2 through which the moving pipes 3 occur, and which is so large that the Pipelines 3 can perform the full movement of a grate stroke.
- the Pipes 3 are in the underwind area 5 on a moving Support structure 6, which is connected to the grate slide 11, attached.
- a moving disc 4 which is attached to the tubes is, the slot opening is completely covered and sealed so that no dirt can escape from the underwind area 5.
- the flexible connections arranged in the present Example are designed as hoses 9.
- the hoses are on one side on pipes 10, which form the passage through the box structure connected.
- the hoses take the movement of the pipelines 3 moving along.
- the inclusion of the movement can also by another flexible connection, for example by one Lift cylinder.
- 1 and 2 show an example in which the movement of three pipes via three hoses is compensated. That ⁇ s how it is possible to have several flexible pipes in one manifold summarize and only provide with a flexible connection.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
- Table Devices Or Equipment (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Furnace Details (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Abstract
Description
Derartige Feuerungsroste werden beispielsweise in Müllverbrennungsanlagen eingesetzt. Sie bestehen meist aus einzelnen Rostreihen, die hintereinander angeordnet sind und dachziegelartig übereinander liegen. Dabei wechselt sich immer eine feststehende und eine bewegliche Reihe ab. Die Bewegung der einzelnen Reihen bewirkt einerseits den Transport des Brennstoffes durch die Feuerung und andererseits die Schürung des Brennbettes. Die Rostreihen können aus einzelnen Roststäben, die dicht miteinander verbunden sind, oder aus größeren Rostplatten bestehen. Es kommen sowohl Guß- als auch Schweißkonstruktionen zum Einsatz.
Die dadurch erforderliche besondere Abdichtung der Kühlwasserzu- und -ablaufleitungen im Unterwindbereich erfolgt nach einem bevorzugten Merkmal der Erfindung mittels einer Schlitzdichtung im Unterwindtrichter und einer außerhalb des Unterwindtrichters aufgebrachten Kastenkonstruktion, die mit einer Abdeckplatte gasdicht verschlossen wird.
Die Rohrleitungen werden in einem Schlitz im Unterwindtrichter, der die Bewegung eines vollen Rosthubes zuläßt, nach außen geführt. Der Schlitz wird mit einer sich mitbewegenden Scheibe so weit abgedichtet, daß kein Schmutz aus dem Unterwindbereich nach außen dringen kann. Um diese Schlitzdichtung wird eine Kastenkonstruktion, die mit einem Deckel gasdicht verschließbar ist, auf den Unterwindtrichter aufgesetzt. In dieser Kastenkonstruktion findet die Kompensation der Bewegung über eine flexible Verbindung, beispielsweise über eine Schlauchverbindung, statt. Die flexible Verbindung wird durch den Kasten nach außen geführt.
- Figur 1:
- die Rohrleitungsdurchführung durch eine Wand des Unterwindtrichters und die zugehörige Kastenkonstruktion im Querschnitt;
- Figur 2:
- die Rohrleitungsdurchführung durch eine Wand des Unterwindtrichters und die zugehörige Kastenkonstruktion im Längsschnitt;
- Figur 3
- die Teilansicht eines Querschnitts durch einen wassergekühlten Feuerungsrost mit Rostschlitten und Unterwindbereich.
Claims (9)
- Wassergekühlter Feuerungsrost für Verbrennungsanlagen, insbesondere zur Verbrennung von Müll, bestehend aus hintereinanderliegender Rostreihen, von denen jede zweite beweglich ist, wobei unterhalb des Rostbelages die Zuführung und/oder Abführung des Kühlwassers zu und/oder von den beweglichen Rostreihen durch mitbewegbare Rohrleitungen (3) erfolgt, die im Unterwindbereich (5) des Rostes über Stützkonstruktionen (6) mit dem beweglichen Rostschlitten (11) verbunden sind, wobei die Bewegung der Rohrleitungen (3) durch mindestens eine flexible Verbindung (9) aufgenommen wird, welche außerhalb des Unterwindbereiches (5) angeordnet ist.
- Feuerungsrost nach Anspruch 1, dadurch gekennzeichnet, daß die mitbewegten Rohrleitungen (3) durch eine Schlitzöffnung (2) in einer Wand des Unterwindbereiches (5) nach außen geführt werden.
- Feuerungsrost nach einem der obigen Ansprüche,
dadurch gekennzeichnet, daß
der Schlitz, durch den die Rohrleitungen (3) nach außen geführt werden, über eine sich mit den Rohrleitungen (3) mitbewegende Scheibe (4) gegen Ausdringen von Schmutz aus dem Unterwindbereich (5) abgedichtet ist. - Feuerungsrost nach einem der obigen Ansprüche,
dadurch gekennzeichnet, daß
auf der Außenseite des Unterwindtrichters (1) um die Rohrleitungen (3) eine Kastenkonstruktion (7) mit Abschlußdeckel (8) angeordnet ist, die die Gasdichtheit des Unterwindbereiches (5) herstellt. - Feuerungsrost nach einem der obigen Ansprüche,
dadurch gekennzeichnet, daß
in der Kastenkonstruktion (7) mindestens eine flexible Verbindung (9) für eine oder mehrere Rohrleitungen (3) angeordnet ist. - Feuerungsrost nach einem der obigen Ansprüche,
dadurch gekennzeichnet, daß
die flexiblen Verbindungen (9) Schlauchanschlüsse sind. - Feuerungsrost nach einem der obigen Ansprüche,
dadurch gekennzeichnet, daß
die flexiblen Verbindungen (9) Hubzylinder sind. - Feuerungsrost nach einem der obigen Ansprüche,
dadurch gekennzeichnet, daß
die Kastenkonstruktion (7) einen Spülluftanschluß umfaßt. - Feuerungsrost nach einem der obigen Ansprüche,
dadurch gekennzeichnet, daß
mehrere bewegliche Rohrleitungen (3) im Unterwindbereich zu einer Sammelleitung zusammengefaßt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19749227 | 1997-11-07 | ||
DE19749227A DE19749227C2 (de) | 1997-11-07 | 1997-11-07 | Wassergekühlter Feuerungsrost |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0915294A1 true EP0915294A1 (de) | 1999-05-12 |
EP0915294B1 EP0915294B1 (de) | 2002-04-24 |
Family
ID=7847920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98120480A Expired - Lifetime EP0915294B1 (de) | 1997-11-07 | 1998-10-29 | Wassergekühlter Feuerungsrost |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0915294B1 (de) |
AT (1) | ATE216766T1 (de) |
DE (2) | DE19749227C2 (de) |
DK (1) | DK0915294T3 (de) |
ES (1) | ES2176882T3 (de) |
PT (1) | PT915294E (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006109199A1 (en) | 2005-04-13 | 2006-10-19 | Babcock & Wilcox Vølund Aps | Cooling system for a combustion grate in an incineration plant |
EP1744101A2 (de) | 2005-07-16 | 2007-01-17 | LLS Standardkessel Service GmbH | Kühlfluidzufuhr mit Kühlfluidzylinder für Roststäbe |
EP1975507A1 (de) * | 2007-03-29 | 2008-10-01 | ThyssenKrupp Xervon Energy GmbH | Vorschubrost für Feuerungsanlagen |
EP1983261A1 (de) | 2007-04-20 | 2008-10-22 | Ernst Schenkel | Bewegungsausgleicher |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02106613A (ja) * | 1988-10-13 | 1990-04-18 | Hitachi Zosen Corp | 焼却炉の火格子構造 |
WO1995018333A1 (de) * | 1993-12-24 | 1995-07-06 | Doikos Investments Limited | Schub-verbrennungsrost-modul zum verbrennen von kehricht in grossanlagen, sowie verfahren zu dessen betrieb |
WO1996029544A1 (de) * | 1995-03-23 | 1996-09-26 | Theodor Koch | Verbrennungsrost und verfahren zum optimieren des betriebes eines verbrennungsrostes |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE928358C (de) * | 1942-02-14 | 1955-05-31 | Mont Kessel Herpen & Co | Rostfeuerung, deren Rostflaeche aus wassergekuehlten beweglichen Rohren gebildet ist |
-
1997
- 1997-11-07 DE DE19749227A patent/DE19749227C2/de not_active Expired - Fee Related
-
1998
- 1998-10-29 DK DK98120480T patent/DK0915294T3/da active
- 1998-10-29 EP EP98120480A patent/EP0915294B1/de not_active Expired - Lifetime
- 1998-10-29 AT AT98120480T patent/ATE216766T1/de active
- 1998-10-29 DE DE59803909T patent/DE59803909D1/de not_active Expired - Lifetime
- 1998-10-29 ES ES98120480T patent/ES2176882T3/es not_active Expired - Lifetime
- 1998-10-29 PT PT98120480T patent/PT915294E/pt unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02106613A (ja) * | 1988-10-13 | 1990-04-18 | Hitachi Zosen Corp | 焼却炉の火格子構造 |
WO1995018333A1 (de) * | 1993-12-24 | 1995-07-06 | Doikos Investments Limited | Schub-verbrennungsrost-modul zum verbrennen von kehricht in grossanlagen, sowie verfahren zu dessen betrieb |
WO1996029544A1 (de) * | 1995-03-23 | 1996-09-26 | Theodor Koch | Verbrennungsrost und verfahren zum optimieren des betriebes eines verbrennungsrostes |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 319 (M - 0996) 9 July 1990 (1990-07-09) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006109199A1 (en) | 2005-04-13 | 2006-10-19 | Babcock & Wilcox Vølund Aps | Cooling system for a combustion grate in an incineration plant |
KR101289560B1 (ko) * | 2005-04-13 | 2013-07-24 | 밥콕 앤 윌콕스 뵐운트 아/에스 | 소각 플랜트에서의 연소 화격자를 위한 냉각 시스템 |
EP1744101A2 (de) | 2005-07-16 | 2007-01-17 | LLS Standardkessel Service GmbH | Kühlfluidzufuhr mit Kühlfluidzylinder für Roststäbe |
EP1975507A1 (de) * | 2007-03-29 | 2008-10-01 | ThyssenKrupp Xervon Energy GmbH | Vorschubrost für Feuerungsanlagen |
EP1983261A1 (de) | 2007-04-20 | 2008-10-22 | Ernst Schenkel | Bewegungsausgleicher |
Also Published As
Publication number | Publication date |
---|---|
ATE216766T1 (de) | 2002-05-15 |
DE19749227C2 (de) | 1999-12-02 |
DK0915294T3 (da) | 2002-07-15 |
DE59803909D1 (de) | 2002-05-29 |
PT915294E (pt) | 2002-09-30 |
ES2176882T3 (es) | 2002-12-01 |
DE19749227A1 (de) | 1999-05-20 |
EP0915294B1 (de) | 2002-04-24 |
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