EP1577625B1 - Refractory material heat shield - Google Patents

Refractory material heat shield Download PDF

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Publication number
EP1577625B1
EP1577625B1 EP05004403A EP05004403A EP1577625B1 EP 1577625 B1 EP1577625 B1 EP 1577625B1 EP 05004403 A EP05004403 A EP 05004403A EP 05004403 A EP05004403 A EP 05004403A EP 1577625 B1 EP1577625 B1 EP 1577625B1
Authority
EP
European Patent Office
Prior art keywords
plate
plates
wall
recess
steel
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.)
Not-in-force
Application number
EP05004403A
Other languages
German (de)
French (fr)
Other versions
EP1577625A1 (en
Inventor
Johannes Dipl.-Ing. Imle
Hardy Dipl.-Ing. Hampel
Karl-Ulrich Dipl.-Ing. Martin
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.)
Juenger and Graeter Feuerfestbau GmbH
Original Assignee
Juenger and Graeter Feuerfestbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Juenger and Graeter Feuerfestbau GmbH filed Critical Juenger and Graeter Feuerfestbau GmbH
Publication of EP1577625A1 publication Critical patent/EP1577625A1/en
Application granted granted Critical
Publication of EP1577625B1 publication Critical patent/EP1577625B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings
    • F27D1/145—Assembling elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
    • F27D2009/0021—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine
    • F27D2009/0027—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine linked by elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0051—Cooling of furnaces comprising use of studs to transfer heat or retain the liner
    • F27D2009/0054—Cooling of furnaces comprising use of studs to transfer heat or retain the liner adapted to retain formed bricks

Definitions

  • the invention relates to a refractory lining, in particular for waste incineration plants, with a plurality of juxtaposed and stacked plates which are backfilled by temperature-resistant products, and with steel parts which are fastened to the wall to be covered, wherein each plate has at least one recess into which a or intervene several steel parts.
  • Boilers and furnace rooms require a refractory wall construction in order to separate the boiler room from the pipe aggregates.
  • the protection of steel tube aggregates by means of suspended panels are covered over a large area with the pipe wall plates and filled the gaps.
  • a refractory lining of the type mentioned is from the EP 1 336 808 known.
  • the disadvantage of this known pipe wall cladding and other pipe wall cladding in refractory construction is that the backfill material penetrates into all recesses and openings of the plates during backfilling. This backfill material connects non-positively with the plates and with the steel parts that engage behind and hold the plates. Under operating conditions of the refractory lining, stresses between the steel parts and the plates arise because the behavior of the plates and the steel parts is very different when exposed to temperature. Due to the fact that the backfill compound has joined non-positively to the steel parts and the plates, are over Backfill transmitted forces that are due to the operation and that can lead to cracks in the plate or even the destruction of the plate.
  • the object underlying the present invention is to avoid cracks, or the destruction of the plates.
  • the coating used is a material which melts, burns, softens, shrinks, shrinks, sublimates, evaporates or foams at the temperature prevailing there during operation.
  • the coating used is organic material, e.g. Bitumen, plastic, wax, latex, rubber, paper or cardboard.
  • the essence of the invention is to avoid a frictional connection between the steel part and the plate by the recesses of the plate are coated.
  • Fig. 1 has the plate 1 on its back a recess 2.
  • This recess 2 is provided with the coating 3.
  • This plate 1 is hung on the steel part 4 to complete the refractory lining.
  • the steel part 4 is formed as a hook to engage behind the recess 2.
  • the finished panel wall is backfilled.
  • the backfill compound can not connect frictionally with the plate during backfilling of the plates.
  • the coating melts, burns, softens, shrinks, sublimates, evaporates or foams, leaving a gap. This prevents the steel part-Hinter Stahl composite is positively connected to the plate. The transmission of the forces caused by the operation between the wall to be covered and the plates is largely avoided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Building Environments (AREA)
  • Compounds Of Iron (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Catalysts (AREA)

Abstract

The fireproof cladding has several slabs (1) alongside and overlapping each other, with heat-resistant properties. The steel components (4) are fixed to the wall to which the cladding is to be applied. Each slab has at least one recess (2) to take one or more steel components. The transmission of operating forces between the wall and the slabs is thereby to a large extent avoided.

Description

Die Erfindung betrifft eine Feuerfestabkleidung, insbesondere für Müllverbrennungsanlagen, mit mehreren neben- und übereinander angeordneten Platten, die durch temperaturbeständige Erzeugnisse hinterfüllt sind, und mit Stahlteilen, die an der zu verkleidenden Wand befestigt sind, wobei jede Platte mindestens eine Ausnehmung aufweist, in die ein oder mehrere Stahlteile eingreifen.The invention relates to a refractory lining, in particular for waste incineration plants, with a plurality of juxtaposed and stacked plates which are backfilled by temperature-resistant products, and with steel parts which are fastened to the wall to be covered, wherein each plate has at least one recess into which a or intervene several steel parts.

Kessel und Ofenräume, insbesondere Industrieöfen, bedürfen einer feuerfesten Wandkonstruktion, um den Kesselraum von den Rohraggregaten zu trennen. Hierzu erfolgt der Schutz der Stahlrohraggregate mittels vorgehängten Platten. Hierbei werden die zu schützenden Stahlrohraggregate großflächig mit den Rohrwandplatten verkleidet und die Zwischenräume verfüllt.Boilers and furnace rooms, in particular industrial furnaces, require a refractory wall construction in order to separate the boiler room from the pipe aggregates. For this purpose, the protection of steel tube aggregates by means of suspended panels. Here, the steel pipe aggregates to be protected are covered over a large area with the pipe wall plates and filled the gaps.

Es sind zahlreiche Feuerfestabkleidungen bzw. Rohrwandverkleidungen bekannt, bei denen die Rohrwandplatten mittels Stahlteilen beigehalten werden. Eine Feuerfestabkleidung der eingangs genannten Art ist aus der EP 1 336 808 bekannt. Der Nachteil dieser bekannten Rohrwandverkleidung und anderer Rohrwandverkleidungen im Feuerfestbau besteht darin, dass die Hinterfüllmasse in alle Ausnehmungen und Öffnungen der Platten beim Hinterfüllen eindringt. Diese Hinterfüllmasse verbindet sich kraftschlüssig mit den Platten und mit den Stahlteilen, die die Platten hintergreifen und diese beihalten. Bei Betriebsbedingungen der Feuerfestabkleidung entstehen Verspannungen zwischen den Stahlteilen und den Platten, da das Verhalten der Platten und der Stahlteile bei Temperaturbeaufschlagung sehr unterschiedlich ist. Dadurch, dass sich die Hinterfüllmasse kraftschlüssig mit den Stahlteilen und den Platten verbunden hat, werden über die Hinterfüllmasse Kräfte übertragen, die durch den Betrieb bedingt sind und die zu Rissen in der Platte oder sogar zur Zerstörung der Platte führen können.Numerous refractory linings or pipe wall linings are known in which the pipe wall panels are maintained by means of steel parts. A refractory lining of the type mentioned is from the EP 1 336 808 known. The disadvantage of this known pipe wall cladding and other pipe wall cladding in refractory construction is that the backfill material penetrates into all recesses and openings of the plates during backfilling. This backfill material connects non-positively with the plates and with the steel parts that engage behind and hold the plates. Under operating conditions of the refractory lining, stresses between the steel parts and the plates arise because the behavior of the plates and the steel parts is very different when exposed to temperature. Due to the fact that the backfill compound has joined non-positively to the steel parts and the plates, are over Backfill transmitted forces that are due to the operation and that can lead to cracks in the plate or even the destruction of the plate.

Aus der US 2002/077767 A1 (TERASHIMA YASUHIRO ET AL ) ist eine Feüerfestabkleidung mit neben- und übereinander angeordneten Platten bekannt, die durch temperaturbeständige Massen hinterfüllt sind. An Tragarmen, die an der zu verkleidenden Wand befestigt sind, werden Feuerfestplatten mit den entsprechenden Ausnehmungen montiert. Nach dem Abschmelzen von Gummiband, welches sich um die Tragarme befindet, entsteht Spiel, so dass z.B. bei thermischer Ausdehnung der Tragarme die Kräfte zwischen der zu verkleidenden Wand und den Platten weitestgehend vermieden werden. Dieses Spiel, das durch das Abschmelzen des Gummibandes entsteht, wird dadurch bewirkt, dass ein Luftspalt um den Tragarm gebildet wird. Der Nachteil dieses Luftspaltes um den Tragarm besteht darin, dass der Tragarm korrodiert, da er üblicherweise aus Stahl besteht. Ein weiterer Nachteil besteht darin, dass bei dem entstehenden Spiel nur thermische Längenänderungen aufgefangen werden können.From the US 2002/077767 A1 (TERASHIMA YASUHIRO ET AL ) is a Feüerfestabkleidung with side by side and superimposed plates known that are backfilled by temperature-resistant masses. On support arms, which are attached to the wall to be clad, refractory plates are mounted with the corresponding recesses. After the melting of rubber band, which is located around the support arms, creates play, so that, for example, in thermal expansion of the support arms, the forces between the wall to be covered and the plates are largely avoided. This game, which results from the melting of the rubber band is caused by the fact that an air gap is formed around the support arm. The disadvantage of this air gap around the support arm is that the support arm corrodes, since it usually consists of steel. Another disadvantage is that in the resulting game only thermal changes in length can be absorbed.

Die der vorliegenden Erfindung zu Grunde liegende Aufgabe besteht darin, Risse, bzw. die Zerstörung der Platten zu vermeiden.The object underlying the present invention is to avoid cracks, or the destruction of the plates.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Übertragung von durch den Betrieb bedingten Kräften zwischen der zu verkleidenden Wand und den Platten dadurch weitestgehend vermieden wird, dass jede Ausnehmung einer Platte mit einer Beschichtung aus organischem Material versehen ist.This object is achieved in that the transmission of forces caused by the operation between the wall to be covered and the plates is thereby largely avoided that each recess of a plate is provided with a coating of organic material.

Als Beschichtung wird ein Material verwendet, das bei der dort im Betrieb herrschenden Temperatur schmilzt, verbrennt, erweicht, schwindet, schrumpft, sublimiert, verdampft oder verschwelt.The coating used is a material which melts, burns, softens, shrinks, shrinks, sublimates, evaporates or foams at the temperature prevailing there during operation.

Im Betriebszustand der Feuerfestabkleidung ist zwischen dem Stahlteil-Hinterfüllmasse-Verbund und der Platte ein Spalt entstanden, da die Beschichtung, mit der die Ausnehmung der Platte versehen war, geschmolzen, verbrannt, erweicht, geschwunden, geschrumpft, sublimiert, verdampft oder verschwelt ist. Das Stahlteil hat nunmehr keine kraftschlüssige Verbindung mit der Platte, so dass die beschriebenen Risse in der Platte nicht mehr entstehen können. Vor dem Betriebszustand hat die Beschichtung, mit der die Ausnehmung versehen war, verhindert, dass sich die Hinterfüllmasse in den betreffenden Bereichen mit der Platte verbinden konnte. Im Betriebszustand ist die Beschichtung geschmolzen, verbrannt, erweicht, geschwunden, geschrumpft, sublimiert, verdampft oder verschwelt und der Spalt an den betreffenden Bereichen entstanden. Die Übertragung der durch den Betrieb bedingten Kräfte zwischen der zu verkleidenden Wand, an der das Stahlteil befestigt ist, und den Platten wird hierdurch vermieden.In the operating condition of the refractory lining, a gap has been created between the steel part backfill composite and the plate because the coating with which the recess of the plate was provided is melted, burned, softened, faded, shrunk, sublimated, vaporized or carbonized. The steel part now has no frictional connection with the plate, so that the cracks described in the plate can no longer arise. Prior to the operating condition, the coating with which the recess was provided prevented the backfill compound in the respective areas from being able to connect to the panel. In operation, the coating has melted, burned, softened, faded, shrunk, sublimated, evaporated or carbonized and created the gap at the areas concerned. The transmission of the forces due to the operation between the wall to be covered, to which the steel part is fixed, and the plates is thereby avoided.

Vorteilhafterweise wird als Beschichtung organisches Material verwendet, wie z.B. Bitumen, Kunststoff, Wachs, Latex, Gummi, Papier oder Pappe.Advantageously, the coating used is organic material, e.g. Bitumen, plastic, wax, latex, rubber, paper or cardboard.

Das Wesen der Erfindung besteht darin, eine kraftschlüssige Verbindung zwischen dem Stahlteil und der Platte zu vermeiden, indem die Ausnehmungen der Platte beschichtet sind.The essence of the invention is to avoid a frictional connection between the steel part and the plate by the recesses of the plate are coated.

Die Erfindung wird nun anhand der beigefügten Zeichnung näher erläutert.
Es zeigt:

  • Fig. 1 die Explosionszeichnung einer Platte, bei der die Ausnehmung beschichtet ist, und ein Stahlteil.
The invention will now be described with reference to the accompanying drawings.
It shows:
  • Fig. 1 the exploded view of a plate in which the recess is coated, and a steel part.

Gemäß Fig. 1 weist die Platte 1 auf ihrer Rückseite eine Ausnehmung 2 auf. Diese Ausnehmung 2 ist mit der Beschichtung 3 versehen. Diese Platte 1 wird zur Fertigstellung der Feuerfestabkleidung auf das Stahlteil 4 gehängt. Das Stahlteil 4 ist als Haken ausgebildet, um die Ausnehmung 2 zu hintergreifen.According to Fig. 1 has the plate 1 on its back a recess 2. This recess 2 is provided with the coating 3. This plate 1 is hung on the steel part 4 to complete the refractory lining. The steel part 4 is formed as a hook to engage behind the recess 2.

Nach dem Aufhängen oder Aufstellen der Platte 1 wird die fertiggestellte Plattenwand hinterfüllt. In den Bereichen, an denen die Ausnehmung 2 mit der Beschichtung 3 versehen ist, kann sich die Hinterfüllmasse beim Hinterfüllen der Platten nicht kraftschlüssig mit der Platte verbinden. Im Betriebszustand der Anlage schmilzt, verbrennt, erweicht, schwindet, schrumpft, sublimiert, verdampft oder verschwelt die Beschichtung und es entsteht ein Spalt. Hierdurch wird verhindert, dass der Stahlteil-Hinterfüllmasse-Verbund kraftschlüssig mit der Platte verbunden ist. Die Übertragung der durch den Betrieb bedingten Kräfte zwischen der zu verkleidenden Wand und den Platten wird weitestgehend vermieden.After hanging or setting up the plate 1, the finished panel wall is backfilled. In the areas where the recess 2 is provided with the coating 3, the backfill compound can not connect frictionally with the plate during backfilling of the plates. In the operating state of the plant, the coating melts, burns, softens, shrinks, sublimates, evaporates or foams, leaving a gap. This prevents the steel part-Hinterfüllmasse composite is positively connected to the plate. The transmission of the forces caused by the operation between the wall to be covered and the plates is largely avoided.

Bei der dargestellten Ausführungsform wird die Übertragung von durch den Betrieb bedingten Kräften zwischen der zu verkleidenden Wand und den Platten dadurch weitestgehend vermieden, dass die Ausnehmung der Platte beschichtet war.In the illustrated embodiment, the transmission of forces due to the operation between the wall to be clad and the plates is thereby largely avoided that the recess of the plate was coated.

Claims (1)

  1. A refractory cladding, in particular for refuse incinerators, comprising a plurality of mutually juxtaposed and superposed plates which can be backfilled by temperature-resistant products, and steel portions which are fixed to the wall to be clad, wherein each plate has at least one opening into which one or more steel portions engage,
    characterised in that
    each opening (2) in a plate (1) is provided with a coating (3) of organic material which at the temperature prevailing there in operation melts, bums, softens, contracts, shrinks, sublimates, vaporises or carbonises.
EP05004403A 2004-03-18 2005-03-01 Refractory material heat shield Not-in-force EP1577625B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004013722 2004-03-18
DE102004013722 2004-03-18

Publications (2)

Publication Number Publication Date
EP1577625A1 EP1577625A1 (en) 2005-09-21
EP1577625B1 true EP1577625B1 (en) 2009-05-06

Family

ID=34833211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05004403A Not-in-force EP1577625B1 (en) 2004-03-18 2005-03-01 Refractory material heat shield

Country Status (3)

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EP (1) EP1577625B1 (en)
AT (1) ATE430907T1 (en)
DE (1) DE502005007221D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014060451A2 (en) 2012-10-18 2014-04-24 Jünger + Gräter Gmbh Receptacle for an anchor of a fireproof inner layer for an industrial furnace
DE102013103083B3 (en) * 2013-03-26 2014-05-15 Jünger+Gräter GmbH Holder for refractory inner layer for industrial furnace wall of industrial furnace, has several longitudinal channels which are formed in front end while one longitudinal channel is opened at outer side

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009080167A1 (en) 2007-12-22 2009-07-02 Jünger+Gräter Gmbh Feuerfestbau Wall lining of industrial ovens
DE102009039390A1 (en) * 2009-08-31 2011-03-03 Saint-Gobain Industriekeramik Düsseldorf Gmbh Corrosion protection body

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337163A1 (en) * 1973-07-21 1975-02-06 Linco Gmbh Fastener for refractory furnace linings - has steel anchor embedded, with play, in refractory mass
DE4108754A1 (en) * 1991-03-18 1992-09-24 Schweiss Service Detlef Koeste Boiler tube cladding plate supporting lug - has flat portion under plate and foot stud welded to tube
DE29504758U1 (en) * 1995-03-21 1995-05-18 Carborundum Deutschland GmbH, 40597 Düsseldorf Screw fastening for ceramic plates
EP0962696A4 (en) * 1997-11-28 2002-03-06 Mitsubishi Heavy Ind Ltd Water tube protective refractory structure and method of assembling the same
DE10206607B4 (en) * 2002-02-15 2004-10-14 Jünger & Gräter GmbH Feuerfestbau Feuerfestabkleidung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014060451A2 (en) 2012-10-18 2014-04-24 Jünger + Gräter Gmbh Receptacle for an anchor of a fireproof inner layer for an industrial furnace
DE102012110390A1 (en) 2012-10-18 2014-04-24 Jünger+Gräter GmbH Support for anchors of a refractory inner layer for industrial furnace
DE102013103083B3 (en) * 2013-03-26 2014-05-15 Jünger+Gräter GmbH Holder for refractory inner layer for industrial furnace wall of industrial furnace, has several longitudinal channels which are formed in front end while one longitudinal channel is opened at outer side

Also Published As

Publication number Publication date
ATE430907T1 (en) 2009-05-15
EP1577625A1 (en) 2005-09-21
DE502005007221D1 (en) 2009-06-18

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