EP1396677B1 - Waste incineration plant comprising a combustion grate - Google Patents

Waste incineration plant comprising a combustion grate Download PDF

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Publication number
EP1396677B1
EP1396677B1 EP02020125A EP02020125A EP1396677B1 EP 1396677 B1 EP1396677 B1 EP 1396677B1 EP 02020125 A EP02020125 A EP 02020125A EP 02020125 A EP02020125 A EP 02020125A EP 1396677 B1 EP1396677 B1 EP 1396677B1
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EP
European Patent Office
Prior art keywords
movable unit
vertically movable
grate
set forth
waste incinerator
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
EP02020125A
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German (de)
French (fr)
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EP1396677A1 (en
Inventor
Thomas Zormeier
Bernhard Dr. Zimmermann
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
Fisia Babcock Environment GmbH
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Filing date
Publication date
Priority to AT02020125T priority Critical patent/ATE303562T1/en
Application filed by Fisia Babcock Environment GmbH filed Critical Fisia Babcock Environment GmbH
Priority to ES02020125T priority patent/ES2248464T3/en
Priority to DE50204095T priority patent/DE50204095D1/en
Priority to EP02020125A priority patent/EP1396677B1/en
Priority to KR1020030062132A priority patent/KR100912221B1/en
Priority to JP2003314854A priority patent/JP4289956B2/en
Priority to CNB031554385A priority patent/CN100334389C/en
Publication of EP1396677A1 publication Critical patent/EP1396677A1/en
Application granted granted Critical
Publication of EP1396677B1 publication Critical patent/EP1396677B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/08—Bearers; Frames; Spacers; Supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/06—Provision for vertical adjustment of grate
    • 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

Definitions

  • the invention relates to a waste incineration plant with a Combustion grate with the features of the preamble of Claim 1 (see for example US-3393652-A).
  • a defined gap is for the safe operation of the system Of considerable importance, since only so the wear in the Transition area between the combustion grate and the boiler remains controllable.
  • Rosttragrahmens require a complex scaffolding structure, because the support tubes on support plates and disc springs in the Hanging boiler stand are.
  • the support tubes are in integrate the water-steam circuit of the boiler.
  • the invention is based on the object at a generic waste incineration plant the combustion grate so support that on support tubes for the support of the Rosttragrahmens can be waived and that a Relative movement between the combustion grate and the boiler is minimized during operation of the waste incineration plant.
  • the Loads from the combustion grate, the grate support frame as well as from the fuel shaft and the slag trap which are connected with the Rust carrying frames are connected, directly into the foundation be initiated, resulting in savings in steel construction for the Kesselgerüst be possible.
  • the vertically movable unit Replaces the support tubes for supporting the Rostragrahmens. The elimination of these support tubes also accounts for the Suspension of the support tubes in the boiler tower necessary Plates and disc springs and the integration of Supporting pipes in the water-steam cycle of the boiler. The through the thermal expansion related relative movement between the Combustion grate and the boiler is going through the vertical counteracted movable unit.
  • Measuring device By cooperating with the vertically movable unit Measuring device can be the gap between the Combustion grate and the boiler in all operating conditions of Define waste incineration plant exactly.
  • About one with the Measuring device connected control unit can be the vertical Movable unit of Kesseldehung controlled controlled , whereby the gap is to be kept constant.
  • the waste incineration plant contains a boiler 1 with a combustion chamber 2, to which only one partially shown flue 3 connects.
  • the firebox 2 is laterally through the side walls 4 of the boiler 1 and above limited by a firebox ceiling 5.
  • the side walls 4, the Combustor ceiling 5 and the flue 3 are gas-tight formed welded together pipe walls and in a Integrated water-steam cycle.
  • the boiler 1 is mounted in a boiler steel 15, of which Parts can be seen in Figs. 1 and 2.
  • the furnace 2 of the boiler 1 is down through a Combustion grate 8 limited, for example, as a feed grate is trained.
  • a Combustion grate 8 In front of the combustion grate 8 is a Fuel chute 9, and behind the combustion grate 8 is a Slag trap shaft 10 is provided.
  • the combustion grate 8 is along with the fuel chute 9 and the slag trap 10 on a grate support frame 11.
  • the garbage gets over the Fuel chute 9 abandoned on the burn grate, over the Combustion grate 8 in the direction of the slag trap shaft 10 conveyed and under supply of combustion air on the Combustion grate 8 burned.
  • the boiler 1 expands through the the heat produced by the incineration of the garbage to the sides and down from.
  • the vertically movable Unit consists of several individual elements 12, the various locations connected to the grate support frame 11 and suspended either on a foundation 7 or on a support 6 are.
  • the vertically movable unit causes a vertical Change in position of the grate support frame 11 with respect to the boiler 1.
  • a vertical position change of the grate support frame 11 requires a horizontal shift option or a swivel option the connection point between the vertically movable Unit and the grate support frame 11 and the foundation 7.
  • the Connection between the vertically movable unit and the Rost support frame 11 and the foundation 7 is therefore, as in the Fig. 1, 2 and 3B indicated as a joint 13, z. B. in the form of Ball joint eyes or pin bearings to be executed.
  • the Individual elements 12 of the vertically movable unit can also horizontally displaceable on plain bearings or bearings 16 be stored (Fig. 3B). In this way, the Grate frame 11 to move up and down and by one or two Swing axles. Any position can be adjusted which is an optimization of the gap size in all operating states allows.
  • the individual elements 12 of the vertically movable unit can get up on the foundation 7 and the grate support frame 11 of support the bottom, causing the load directly into the foundation 7 is introduced (Fig. 1).
  • Alterantiv can the individual elements 12 of the vertically movable unit above the Rosttragrahmens 11 suspended from the support 6, whereby the Load is introduced via the carrier 6 in the foundation 7 (Fig. 2).
  • the individual elements 12 of the vertically movable unit can as a hydraulic support, as Spindelhubelement, as a rack with Pinion or in the hanging version as a winch be educated.
  • a hydraulic support as Spindelhubelement
  • a rack with Pinion or in the hanging version as a winch be educated.
  • Figs. 3A and 3B one as Hydraulic support trained vertically movable unit shown, which consists of a pressurized medium cylinder 17 and a piston rod 18 is made.
  • this is the Drive element - that is, the cylinder 17 of the hydraulic support, the driven nut of the Spindelhubides, the driven pinions - on the fixed part (foundation 7 or carrier 6).
  • the counterpart - that is the Piston rod 18 of the hydraulic support, the spindle of Screw jack, the rack - is with the rust carrying frame 11 connected.
  • the vertically movable unit acts with a measuring device 14 together, to the grate support frame 11 and the boiler 1 attacks.
  • the measuring device 14 provides a manipulated variable for the Adjustment of the gap between the grate support frame 11 and the Boiler 1.
  • the manipulated variable is connected to the control unit via a control device driven part of the vertically movable unit forwarded.
  • the measuring device 14 may be a path measuring device, with the distance is determined during operation due to the boiler stretching between the combustion grate 8 and the boiler 1 sets. The measured distance is with a previously defined distance compared. Is this defined Distance exceeded, so the Vebren Vietnamesesrost with the Rost support frame 11 by activating the drive part of the Individual elements 12 of the vertically movable unit to the Boiler 1 can be brought up. When falling below the Distance is the combustion grate 8 of the boiler 1 away to be moved. This will clear the gap or the gap between held the Vebren Vietnamesesrost 8 and the boiler 1 constant.
  • the measuring device 14 can also be used as a force measuring device be formed, with which the force is determined during the of operation due to the boiler stretching between the Grate support frame 11 or the combustion grate 8 and the boiler 1 takes effect.
  • the measured force comes with a previously defined traction compared. Will this defined force exceeded, so must with the help of vertically movable Unit of the combustion grate 8 with the grate support frame 11 to the Boiler 1 are moved up. In a fall below the Force the combustion grate 8 is moved away from the boiler 1. By keeping constant the force between the combustion grate 8 and the boiler 1 is also the gap between these two constant held. The same applies to a previously defined compressive force.

Abstract

The waste incinerating plant comprises a boiler (1) suspended in a steel construction (15) supported on a foundation (7), with the walls of the boiler together with a fire grate (8) defining a furnace chamber (2). The support frame (11) for the fire grate is connected to a vertically movable unit through which the support frame is supported on the foundation. At least one measuring device (14) is installed between the fire grate support frame and the boiler, and the vertically movable unit is adjustable via a control unit in accordance with a set value of the measuring device.

Description

Die Erfindung betrifft eine Müllverbrennungsanlage mit einem Verbrennungsrost mit den Merkmalen des Oberbegriffes des Anspruches 1 (siehe zum Beispiel US-3393652-A).The invention relates to a waste incineration plant with a Combustion grate with the features of the preamble of Claim 1 (see for example US-3393652-A).

Bei einem bekannten Konstruktionsprinzip für Müllverbrennungsanlagen wird der Kessel nicht auf das Fundament gestellt, sondern in das Kesselgerüst eingehängt. Das hat zur Folge, dass die durch die eingebrachte Wärme entstehende Dehnung des Kessels nur nach unten und zu den Seiten, nicht aber nach oben erfolgen kann. Da der Verbrennungsrost und der Kessel dicht miteinander verbunden sein müssen, um Lufteintritte zu verhindern, wird der Spalt zwischen dem Verbrennungsrost und dem Kessel mit einem Kompensator abgedichtet. Dieser gleicht die durch unterschiedliche Wärmedehnung unvermeidbare Relativbewegung zwischen dem Verbrennungsrost und dem Kessel aus. Um den Spalt definiert klein zu halten, wird der Rosttragrahmen nicht auf das Fundament gestellt, sondern über Tragrohre im Kesselgerüst aufgehängt. Die Tragrohre werden in den Wasser-Dampf-Kreislauf des Kessels eingebunden, so dass die Längendehnung infolge der Temperaturänderung ähnlich zu der des Kessels ist. Dadurch kann der Abstand zwischen dem Verbrennungsrost und dem Kessel nahezu konstant gehalten werden.In a known construction principle for Waste incinerators will not put the boiler on the foundation but hung in the boiler frame. That has to Consequence that the strain caused by the introduced heat the boiler only down and to the sides, but not after can be done above. As the combustion grate and the boiler must be tightly interconnected to air inlets too prevent the gap between the combustion grate and the Boiler sealed with a compensator. This resembles the unavoidable due to different thermal expansion Relative movement between the combustion grate and the boiler out. To keep the gap defined small, the Rost support frame not put on the foundation, but about Supporting tubes suspended in the boiler frame. The support tubes are in involved the water-steam cycle of the boiler, so that the Elongation due to the temperature change similar to that of Kessels is. This allows the distance between the Combustion grate and the boiler are kept almost constant.

Ein definierter Spalt ist für den sicheren Betrieb der Anlage von erheblicher Bedeutung, da nur so der Verschleiss im Übergangsbereich zwischen dem Verbrennungsrost und dem Kessel kontrollierbar bleibt. Die Tragrohre zur Aufhängung des Rosttragrahmens erfordern jedoch einen aufwendigen Gerüstaufbau, weil die Tragrohre über Auflageplatten und Tellerfedern in dem Kesselgerüst aufzuhängen sind. Außerdem sind die Tragrohre in den Wasser-Dampf-Kreislauf des Kessels einzubinden.A defined gap is for the safe operation of the system Of considerable importance, since only so the wear in the Transition area between the combustion grate and the boiler remains controllable. The support tubes for suspension of the However, Rosttragrahmens require a complex scaffolding structure, because the support tubes on support plates and disc springs in the Hanging boiler stand are. In addition, the support tubes are in integrate the water-steam circuit of the boiler.

Der Erfindung liegt die Aufgabe zugrunde, bei einer gattungsgemäßen Müllverbrennungsanlage den Verbrennungsrost so abzustützen, dass auf Tragrohre für die Abstützung des Rosttragrahmens verzichtet werden kann und dass eine Relativbewegung zwischen dem Verbrennungsrost und dem Kessel während des Betriebes der Müllverbrennungsanlage minimiert wird.The invention is based on the object at a generic waste incineration plant the combustion grate so support that on support tubes for the support of the Rosttragrahmens can be waived and that a Relative movement between the combustion grate and the boiler is minimized during operation of the waste incineration plant.

Die Aufgabe wird bei einer gattungsgemäßen Müllverbrennungsanlage erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.The task is in a generic Waste incineration plant according to the invention by the characterizing Characteristics of claim 1 solved. Advantageous embodiments The invention are the subject of the dependent claims.

Bei der erfindungsgemäßen Müllverbrennungsanlage können die Lasten aus dem Verbrennungsrost, dem Rosttragrahmen sowie aus dem Brennstoffschacht und dem Schlackefallschacht, die mit dem Rosttragrahmen verbunden sind, unmittelbar in das Fundament eingeleitet werden, wodurch Einsparungen im Stahlbau für das Kesselgerüst möglich werden. Die vertikal verfahrbare Einheit ersetzt die Tragrohre für die Abstützung des Rostragrahmens. Durch den Entfall dieser Tragrohre entfallen auch die zur Aufhängung der Tragrohre im Kesselgerüst notwendigen Auflageplatten und Tellerfedern sowie die Einbindung der Tragrohre in den Wasser-Dampf-Kreislauf des Kessels. Der durch die Wärmedehnung bedingte Relativbewegung zwischen dem Verbrennungsrost und dem Kessel wird durch die vertikal verfahrbare Einheit entgegengewirkt.In the waste incineration plant according to the invention, the Loads from the combustion grate, the grate support frame as well as from the fuel shaft and the slag trap which are connected with the Rust carrying frames are connected, directly into the foundation be initiated, resulting in savings in steel construction for the Kesselgerüst be possible. The vertically movable unit Replaces the support tubes for supporting the Rostragrahmens. The elimination of these support tubes also accounts for the Suspension of the support tubes in the boiler tower necessary Plates and disc springs and the integration of Supporting pipes in the water-steam cycle of the boiler. The through the thermal expansion related relative movement between the Combustion grate and the boiler is going through the vertical counteracted movable unit.

Durch die mit der vertikal verfahrbaren Einheit zusammenwirkende Messeinrichtung lässt sich der Spalt zwischen dem Verbrennungsrost und dem Kessel in allen Betriebszuständen der Müllverbrennungsanlage exakt definieren. Über eine mit der Messeinrichtung verbundene Regeleinheit kann die vertikal verfahrbare Einheit der Kesseldehung geregelt nachgefahren werden, wodurch der Spalt konstant zu halten ist.By cooperating with the vertically movable unit Measuring device can be the gap between the Combustion grate and the boiler in all operating conditions of Define waste incineration plant exactly. About one with the Measuring device connected control unit can be the vertical Movable unit of Kesseldehung controlled controlled , whereby the gap is to be kept constant.

Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher erläutert. Es zeigen:

Fig. 1
schematisch den Längsschnitt durch eine Müllverbrennungsanlage;
Fig. 2
schematisch den Längsschnitt durch eine Müllverbrennungsanlage gemäß einer anderen Ausführungsform und
Fig. 3A und 3B
schematisch zwei verschiedene Ausführungsformen einer vertikal verfahrbaren Einheit.
Several embodiments of the invention are illustrated in the drawing and are explained in more detail below. Show it:
Fig. 1
schematically the longitudinal section through a waste incineration plant;
Fig. 2
schematically the longitudinal section through a waste incineration plant according to another embodiment and
FIGS. 3A and 3B
schematically two different embodiments of a vertically movable unit.

Eine Müllverbrennungsanlage ist allgemein bekannt und wird nachfolgend nur soweit beschrieben, wie es zum Verständnis der Erfindung notwendig ist. Die Müllverbrennungsanlage enthält einen Kessel 1 mit einem Feuerraum 2, an den sich ein nur teilweise dargestellter Rauchgaszug 3 anschließt. Der Feuerraum 2 ist seitlich durch die Seitenwände 4 des Kessels 1 und oben durch eine Feuerraumdecke 5 begrenzt. Die Seitenwände 4, die Feuerraumdecke 5 und der Rauchgaszug 3 sind als gasdicht miteinander verschweißte Rohrwände ausgebildet und in einen Wasser-Dampf-Kreislauf eingebunden.A waste incineration plant is well known and will hereinafter only described as far as it is to understand the Invention is necessary. The waste incineration plant contains a boiler 1 with a combustion chamber 2, to which only one partially shown flue 3 connects. The firebox 2 is laterally through the side walls 4 of the boiler 1 and above limited by a firebox ceiling 5. The side walls 4, the Combustor ceiling 5 and the flue 3 are gas-tight formed welded together pipe walls and in a Integrated water-steam cycle.

Der Kessel 1 ist in einen Kesselstahlbau 15 eingehängt, von dem Teile in den Fig. 1 und 2 zu erkennen sind.The boiler 1 is mounted in a boiler steel 15, of which Parts can be seen in Figs. 1 and 2.

Der Feuerraum 2 des Kessels 1 ist nach unten durch einen Verbrennungsrost 8 begrenzt, der beispielsweise als Vorschubrost ausgebildet ist. Vor dem Verbrennungsrost 8 befindet sich ein Brennstoffschacht 9, und hinter dem Verbrennungsrost 8 ist ein Schlackefallschacht 10 vorgesehen. Der Verbrennungsrost 8 steht zusammen mit dem Brennstoffschacht 9 und dem Schlackefallschacht 10 auf einem Rosttragrahmen 11 auf. Der Müll wird über den Brennstoffschacht 9 auf den Verbrenungsrost aufgegeben, über den Verbrennungsrost 8 in Richtung auf den Schlackefallschacht 10 gefördert und unter Zufuhr von Verbrennungsluft auf dem Verbrennungsrost 8 verbrannt. Infolge der Aufhängung des Kessels 1 in dem Kesselstahlbau 15 dehnt sich der Kessel 1 durch die bei der Verbrennung des Mülls entstehende Wärme nach den Seiten und nach unten aus.The furnace 2 of the boiler 1 is down through a Combustion grate 8 limited, for example, as a feed grate is trained. In front of the combustion grate 8 is a Fuel chute 9, and behind the combustion grate 8 is a Slag trap shaft 10 is provided. The combustion grate 8 is along with the fuel chute 9 and the slag trap 10 on a grate support frame 11. The garbage gets over the Fuel chute 9 abandoned on the burn grate, over the Combustion grate 8 in the direction of the slag trap shaft 10 conveyed and under supply of combustion air on the Combustion grate 8 burned. As a result of suspension of the boiler 1 in the boiler steel construction 15, the boiler 1 expands through the the heat produced by the incineration of the garbage to the sides and down from.

Um den Spalt zwischen dem Verbrennungsrost 8 und dem Kessel 1 definiert zu halten, dient die nachfolgend beschriebene Vorrichtung. Diese besteht aus einer vertikal verfahrbaren Einheit und einer Messeinrichtung 14. Die vertikal verfahrbare Einheit besteht aus mehreren Einzelelementen 12, die an verschiedenen Stellen mit dem Rosttragrahmen 11 verbunden und entweder auf ein Fundament 7 oder an einem Träger 6 aufgehängt sind. Die vertikal verfahrbare Einheit bewirkt eine vertikale Lageänderung des Rosttragrahmens 11 gegenüber dem Kessel 1. Eine vertikale Lageänderung des Rosttragrahmens 11 erfordert eine horizontale Verschiebemöglichkeit oder eine Schwenkmöglichkeit des Verbindungspunktes zwischen der vertikal verfahrbaren Einheit und dem Rosttragrahmen 11 und dem Fundament 7. Die Verbindung zwischen der vertikal verfahrbaren Einheit und dem Rosttragrahmen 11 und dem Fundament 7 wird daher, wie in den Fig. 1, 2 und 3B angedeutet, als Gelenk 13, z. B. in Form von Kugelgelenkaugen oder Bolzenlagern, ausgeführt sein. Die Einzelelemente 12 der vertikal verschiebbaren Einheit können auch horizontal verschieblich auf Gleitlagern oder Wälzlagern 16 gelagert sein (Fig. 3B). Auf diese Weise lässt sich der Rosttragrahmen 11 auf und ab bewegen sowie um eine oder zwei Achsen schwenken. Jede beliebige Lage kann eingestellt werden, was eine Optimierung der Spaltgröße in allen Betriebszuständen ermöglicht.To the gap between the combustion grate 8 and the boiler. 1 to keep defined, serves the following Contraption. This consists of a vertically movable Unit and a measuring device 14. The vertically movable Unit consists of several individual elements 12, the various locations connected to the grate support frame 11 and suspended either on a foundation 7 or on a support 6 are. The vertically movable unit causes a vertical Change in position of the grate support frame 11 with respect to the boiler 1. A vertical position change of the grate support frame 11 requires a horizontal shift option or a swivel option the connection point between the vertically movable Unit and the grate support frame 11 and the foundation 7. The Connection between the vertically movable unit and the Rost support frame 11 and the foundation 7 is therefore, as in the Fig. 1, 2 and 3B indicated as a joint 13, z. B. in the form of Ball joint eyes or pin bearings to be executed. The Individual elements 12 of the vertically movable unit can also horizontally displaceable on plain bearings or bearings 16 be stored (Fig. 3B). In this way, the Grate frame 11 to move up and down and by one or two Swing axles. Any position can be adjusted which is an optimization of the gap size in all operating states allows.

Die Einzelelemente 12 der vertikal verfahrbaren Einheit können auf dem Fundament 7 aufstehen und den Rosttragrahmen 11 von unten stützen, wodurch die Last direkt in das Fundament 7 eingeleitet wird (Fig. 1). Alterantiv können die Einzelelemente 12 der vertikal verfahrbaren Einheit oberhalb des Rosttragrahmens 11 an dem Träger 6 aufgehängt sein, wodurch die Last über den Träger 6 in das Fundament 7 eingeleitet wird (Fig. 2).The individual elements 12 of the vertically movable unit can get up on the foundation 7 and the grate support frame 11 of support the bottom, causing the load directly into the foundation 7 is introduced (Fig. 1). Alterantiv can the individual elements 12 of the vertically movable unit above the Rosttragrahmens 11 suspended from the support 6, whereby the Load is introduced via the carrier 6 in the foundation 7 (Fig. 2).

Die Einzelelemente 12 der vertikal verfahrbaren Einheit können als Hydraulikstütze, als Spindelhubelement, als Zahnstange mit Ritzel oder bei der hängenden Ausführung auch als Seilwinde ausgebildet sein. In den Fig. 3A und 3B ist eine als Hydraulikstütze ausgebildete vertikal verfahrbare Einheit gezeigt, die aus einem mit Druckmedium beaufschlagten Zylinder 17 und einer Kolbenstange 18 besteht. Vorzugsweise ist dabei das Antriebselement - das heißt der Zylinder 17 der Hydraulikstütze, die angetriebene Mutter des Spindelhubelementes, das angetriebene Ritzel - auf dem feststehenden Teil (Fundament 7 oder Träger 6) angeordnet. Das Gegenstück - das heißt die Kolbenstange 18 der Hydraulikstütze, die Spindel des Spindelhubelementes, die Zahnstange - ist mit dem Rosttragrahmen 11 verbunden. Es sind auch Kombinationen möglich.The individual elements 12 of the vertically movable unit can as a hydraulic support, as Spindelhubelement, as a rack with Pinion or in the hanging version as a winch be educated. In Figs. 3A and 3B, one as Hydraulic support trained vertically movable unit shown, which consists of a pressurized medium cylinder 17 and a piston rod 18 is made. Preferably, this is the Drive element - that is, the cylinder 17 of the hydraulic support, the driven nut of the Spindelhubelementes, the driven pinions - on the fixed part (foundation 7 or carrier 6). The counterpart - that is the Piston rod 18 of the hydraulic support, the spindle of Screw jack, the rack - is with the rust carrying frame 11 connected. There are also combinations possible.

Die vertikal verfahrbare Einheit wirkt mit einer Messeinrichtung 14 zusammen, die an den Rosttragrahmen 11 und den Kessel 1 angreift. Die Messeinrichtung 14 liefert eine Stellgröße für die Einstellung des Spaltes zwischen dem Rosttragrahmen 11 und dem Kessel 1. Die Stellgröße wird über eine Regeleinrichtung an den angetriebenen Teil der vertikal verfahrbaren Einheit weitergeleitet. The vertically movable unit acts with a measuring device 14 together, to the grate support frame 11 and the boiler 1 attacks. The measuring device 14 provides a manipulated variable for the Adjustment of the gap between the grate support frame 11 and the Boiler 1. The manipulated variable is connected to the control unit via a control device driven part of the vertically movable unit forwarded.

Die Messeinrichtung 14 kann eine Wegmesseinrichtung sein, mit der der Abstand bestimmt wird, der sich während des Betriebes aufgrund der Kesseldehnung zwischen dem Vebrennungsrost 8 und dem Kessel 1 einstellt. Der gemessene Abstand wird mit einem zuvor definierten Abstand verglichen. Wird dieser definierte Abstand überschritten, so muss der Vebrennungsrost mit dem Rosttragrahmen 11 durch Aktivieren des Antriebsteils der Einzelelemente 12 der vertikal verfahrbaren Einheit an den Kessel 1 heran gefahren werden. Bei einem Unterschreiten des Abstandes wird der Verbrennungsrost 8 von dem Kessel 1 weg bewegt werden. Dadurch wird der Abstand oder der Spalt zwischen dem Vebrennungsrost 8 und dem Kessel 1 konstant gehalten.The measuring device 14 may be a path measuring device, with the distance is determined during operation due to the boiler stretching between the combustion grate 8 and the boiler 1 sets. The measured distance is with a previously defined distance compared. Is this defined Distance exceeded, so the Vebrennungsrost with the Rost support frame 11 by activating the drive part of the Individual elements 12 of the vertically movable unit to the Boiler 1 can be brought up. When falling below the Distance is the combustion grate 8 of the boiler 1 away to be moved. This will clear the gap or the gap between held the Vebrennungsrost 8 and the boiler 1 constant.

Die Messeinrichtung 14 kann auch als Kraftmesseinrichtung ausgebildet sein, mit der die Kraft bestimmt wird, die während des Betriebs aufgrund der Kesseldehnung zwischen dem Rosttragrahmen 11 oder dem Verbrennungsrost 8 und dem Kessel 1 wirksam wird. Die gemessene Kraft wird mit einer zuvor definierten Zugkraft verglichen. Wird diese definierte Kraft überschritten, so muß mit Hilfe der vertikal verfahrbaren Einheit der Verbrennungsrost 8 mit dem Rosttragrahmen 11 an den Kessel 1 herangefahren werden. Bei einem Unterschreiten der Kraft wird der Verbrennungsrost 8 vom Kessel 1 weg bewegt. Durch ein Konstanthalten der Kraft zwischen dem Verbrennungsrost 8 und dem Kessel 1 wird auch der Spalt zwischen diesen beiden konstant gehalten. Analoges gilt für eine zuvor definierte Druckkraft.The measuring device 14 can also be used as a force measuring device be formed, with which the force is determined during the of operation due to the boiler stretching between the Grate support frame 11 or the combustion grate 8 and the boiler 1 takes effect. The measured force comes with a previously defined traction compared. Will this defined force exceeded, so must with the help of vertically movable Unit of the combustion grate 8 with the grate support frame 11 to the Boiler 1 are moved up. In a fall below the Force the combustion grate 8 is moved away from the boiler 1. By keeping constant the force between the combustion grate 8 and the boiler 1 is also the gap between these two constant held. The same applies to a previously defined compressive force.

Claims (11)

  1. A waste incinerator having a vessel (1) that is hung in a structural steel work (15) supported on a foundation block (7), the walls of said vessel defining, together with a grate (8), a combustion chamber (2), said grate (8) being carried on a grate carrier frame (11), characterized in that said grate carrier frame (11) is connected to a vertically movable unit through which said grate carrier frame (11) is supported on said foundation block (7), that at least one measuring apparatus (14) is disposed between said grate carrier frame (11) and said vessel (1) and that the vertically movable unit is disposed so as to be adjustable by means of a control system according to a control variable dictated by said measuring apparatus (14).
  2. The waste incinerator as set forth in claim 1, characterized in that the vertically movable unit stands on the foundation block (7).
  3. The waste incinerator as set forth in claim 1, characterized in that the vertically movable unit is suspended directly above the grate (8) from a beam (6) supported on the foundation block (7).
  4. The waste incinerator as set forth in claim 2 or 3, characterized in that the vertically movable unit consists of a plurality of discrete elements (12) that are configured to be hydraulic supports.
  5. The waste incinerator as set forth in claim 2 or 3, characterized in that the vertically movable unit consists of a plurality of discrete elements (12) that are configured to be spindle lifting elements.
  6. The waste incinerator as set forth in claim 2 or 3, characterized in that the vertically movable unit consists of a plurality of discrete elements (12) that are configured to be rack and pinion units.
  7. The waste incinerator as set forth in claim 3, characterized in that the vertically movable unit consists of a plurality of discrete elements (12) that are configured to be rope winches.
  8. The waste incinerator as set forth in any of the claims 1 through 7, characterized in that the vertically movable unit is linked to the grate carrier frame (11) and to the foundation block (7) or the beam (6) by hinges (13).
  9. The waste incinerator as set forth in any of the claims 1 through 7, characterized in that the discrete elements (12) of the vertically movable unit are horizontally displaceable.
  10. The waste incinerator as set forth in claim 1, characterized in that the measuring apparatus (14) is a distance measuring apparatus.
  11. The waste incinerator as set forth in claim 1, characterized in that the measuring apparatus (14) is a force measuring system.
EP02020125A 2002-09-07 2002-09-07 Waste incineration plant comprising a combustion grate Expired - Lifetime EP1396677B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES02020125T ES2248464T3 (en) 2002-09-07 2002-09-07 GARBAGE INCINERATORY PLANT WITH A COMBUSTION GRILLE.
DE50204095T DE50204095D1 (en) 2002-09-07 2002-09-07 Waste incineration plant with a combustion grate
EP02020125A EP1396677B1 (en) 2002-09-07 2002-09-07 Waste incineration plant comprising a combustion grate
AT02020125T ATE303562T1 (en) 2002-09-07 2002-09-07 WASTE INCINERATION PLANT WITH AN INCINERATION GRATE
KR1020030062132A KR100912221B1 (en) 2002-09-07 2003-09-05 Waste incinerating plant with combustion grates
JP2003314854A JP4289956B2 (en) 2002-09-07 2003-09-05 Garbage incinerator with combustion grate
CNB031554385A CN100334389C (en) 2002-09-07 2003-09-05 Garbageburing apparatus with burning fire grate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02020125A EP1396677B1 (en) 2002-09-07 2002-09-07 Waste incineration plant comprising a combustion grate

Publications (2)

Publication Number Publication Date
EP1396677A1 EP1396677A1 (en) 2004-03-10
EP1396677B1 true EP1396677B1 (en) 2005-08-31

Family

ID=31502751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020125A Expired - Lifetime EP1396677B1 (en) 2002-09-07 2002-09-07 Waste incineration plant comprising a combustion grate

Country Status (7)

Country Link
EP (1) EP1396677B1 (en)
JP (1) JP4289956B2 (en)
KR (1) KR100912221B1 (en)
CN (1) CN100334389C (en)
AT (1) ATE303562T1 (en)
DE (1) DE50204095D1 (en)
ES (1) ES2248464T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213434B (en) * 2011-05-26 2013-03-06 常州市锅炉设备有限公司 Boiler grate
KR102153198B1 (en) * 2018-12-19 2020-09-07 주식회사 포스코 Combustion furnace

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393652A (en) * 1966-10-07 1968-07-23 Foster Wheeler Corp Refuse disposal system
FI85420C (en) * 1987-12-22 1992-04-10 Ahlstroem Oy ANORDNING VID SNEDROST I FOERBRAENNINGSUGNS ELDSTAD.
DE3844493C1 (en) * 1988-12-30 1990-08-23 Karl Von Dipl.-Ing. 3057 Neustadt De Wedel
JPH1019212A (en) 1996-06-28 1998-01-23 Kubota Corp Stoker driving mechanism of refuse incinerator
JPH1047639A (en) 1996-07-29 1998-02-20 Ebara Corp Stoker
NO312644B1 (en) * 1997-04-23 2002-06-10 Doikos Investments Ltd Water cooled pressure combustion grate
SE520073C2 (en) * 1997-06-30 2003-05-20 Tore Gustafsson Top-rated burner for solid fuels and method for operating such a burner
US6412428B1 (en) * 2000-12-20 2002-07-02 Vincent Promuto Method and apparatus for drying and incineration of sewage sludge

Also Published As

Publication number Publication date
DE50204095D1 (en) 2005-10-06
KR100912221B1 (en) 2009-08-14
KR20040023536A (en) 2004-03-18
ATE303562T1 (en) 2005-09-15
JP2004101173A (en) 2004-04-02
EP1396677A1 (en) 2004-03-10
CN1488886A (en) 2004-04-14
CN100334389C (en) 2007-08-29
JP4289956B2 (en) 2009-07-01
ES2248464T3 (en) 2006-03-16

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