EP2225492B1 - Wall lining of industrial ovens - Google Patents

Wall lining of industrial ovens Download PDF

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Publication number
EP2225492B1
EP2225492B1 EP08863537.0A EP08863537A EP2225492B1 EP 2225492 B1 EP2225492 B1 EP 2225492B1 EP 08863537 A EP08863537 A EP 08863537A EP 2225492 B1 EP2225492 B1 EP 2225492B1
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EP
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Prior art keywords
wall
blocking layer
lining
layer
wearing surface
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EP08863537.0A
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German (de)
French (fr)
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EP2225492A1 (en
Inventor
Johannes Imle
Markus Horn
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Juenger and Graeter Feuerfestbau GmbH
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Juenger and Graeter Feuerfestbau GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F23M5/085—Cooling thereof; Tube walls using air or other gas as the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05001—Preventing corrosion by using special lining materials or other techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05003—Details of manufacturing specially adapted for combustion chambers

Definitions

  • the invention relates to a wall lining of industrial furnaces for protecting a refractory-lined wall of concrete, steel, sheet metal or the like against corrosion, wherein the lining of the wall consists of at least three layers, a wear layer, a pressurized barrier layer and an insulating layer.
  • a wear layer is described similar to G 90 16 206 U1, which is attached by means of metal anchors to a boiler wall, wherein between the wear layer and the boiler wall a pressurized barrier layer is provided.
  • the object underlying the present invention is to protect the relevant parts of the wall lining from corrosion.
  • metallic anchors are provided with which the wear layer is attached to the wall, wherein the metallic anchors penetrate through the barrier layer and the insulating layer and are partially disposed in the wear layer and are coated with a material that at operating temperatures melts, burns, softens, shrinks, shrinks, sublimates, evaporates or fades, so that in the wear layer, a gap is formed around the respective metallic anchor into which the pressurized gas forming the barrier layer can enter and the metallic anchors in the gaps for protection can flow around before corrosion.
  • One of the layers is usually made of refractory material (stones or concretes) that are attached to the wall of concrete, steel or the like via metallic anchors or similar steel parts. Between this serving as a wear layer refractory material and the wall to be protected according to the invention a pressurized layer and an insulating layer constructed.
  • the pressurized barrier layer is disposed between the insulating layer and the wear layer, through which insulating layer the gas is directed to the barrier layer.
  • the gas used is preferably air.
  • the supply of the gas is carried out by known means, wherein the pressure supply and the control of the pressure is monitored in a known manner.
  • the metallic anchors which serve to secure the refractory material and which penetrate through the pressurized barrier layer are originally wrapped with a material which melts, burns, softens, shrinks, sublimates, evaporates or foams at operating temperatures. This material thus disappears at operating temperatures, so that the sealing gas in the pressurized layer on the Extends the area around the anchors, making the anchors even better protected against corrosion by noxious gases.
  • the pressurized barrier layer comprises porous material, e.g. a ceramic fiber or ceramic foam. It is possible that the barrier layer consists entirely of highly porous material. This ensures that on the one hand a gas-filled barrier layer is present, which prevents the corrosion attack, on the other hand, the required mechanical bond between the layers is ensured by the mechanical stability of the highly porous layer.
  • spacing cams are arranged in the gas-loaded barrier layer, which determine the distance between the layers adjacent to this barrier layer, whereby the required mechanical bond between the layers can likewise be ensured.
  • These spacer cams are preferably arranged so that the region of the metallic armatures, which are also subject to a particularly critical corrosion attack, is surrounded by sealing air.
  • ovens which have a metal jacket as a wall.
  • this metal jacket is lined with refractory material, wherein between the refractory material and the metal jacket, a pressurized barrier layer is formed, which largely prevents aggressive gases to the wall, eg the metal jacket, can get.
  • the wall 1 is made of sheet metal. This wall 1 is lined with three layers, namely with the insulating layer 2, the pressurized barrier layer 3 and the wear layer 4.
  • the wear layer 4 is made of refractory material 5, which is attached via the metal armature 6 to the wall 1. Between the layer 4 and the wall 1 is the pressurized barrier layer 3 and the insulating layer 2.
  • the pressurized barrier layer 3 is supplied via the supply 7 with gas, so that in the barrier layer 3 creates a pressure.
  • This barrier layer 3 is empty or filled with porous material and is pressurized with the added gas.
  • the spacing cam 8 are arranged, which determine the distance between the wear layer 4 and the insulating layer 2.
  • the spacer cams 8 are formed on the refractory material 5.
  • These metallic anchors 6 are coated with a material which melts, burns, softens, shrinks, shrinks at the operating temperatures sublimated, evaporated or carbonized. The material thus disappears at operating temperatures and a gap arises, so that the gas entering the barrier layer 3 flows around these metallic armatures and protects them from corrosion.
  • the furnace interior 9 is arranged above the wear layer 4.
  • the temperature is usually more than 1000 ° Celsius during operation.
  • the wall 1 adjoins the outside temperature, which is about 20 ° Celsius.
  • This temperature difference between inside and outside often causes cracks and Destruction of the refractory material 5 of the layer 4.
  • These cracks in the layer 4 it would be possible that harmful gases from the furnace interior 9 through the layers 4 and 2 pass through the wall 1 and corroded.
  • the pressure built up in the barrier layer 3 prevents the noxious gases from reaching the wall 1 through cracks in the refractory material 5 of the layer 4 and through the layers.

Description

Die Erfindung betrifft eine Wandauskleidung von Industrieöfen zum Schutz einer feuerfest abgekleideten Wand aus Beton, Stahl, Blech oder Ähnlichem vor Korrosion, wobei die Auskleidung der Wand aus mindestens drei Schichten besteht, einer Verschleißschicht, einer druckbeaufschlagten Sperrschicht und einer Isolierschicht.The invention relates to a wall lining of industrial furnaces for protecting a refractory-lined wall of concrete, steel, sheet metal or the like against corrosion, wherein the lining of the wall consists of at least three layers, a wear layer, a pressurized barrier layer and an insulating layer.

In der Industrie werden Öfen eingesetzt, die mit feuerfestem Material ausgekleidet sind. Bei Betrieb dieser Öfen entstehen Temperaturen von mehr als 1000° Celsius im Innenraum. Die feuerfest abgekleidete Wand dieser Öfen grenzt andererseits an die Umgebung an, deren Temperatur wesentlich geringer ist. Bei einer Außentemperatur von 20° Celsius beträgt die Temperatur der Außenwand beispielsweise etwa 60°C, als Temperatur an der Oberfläche der Auskleidung werden Werte zwischen 400 und 900° Celsius gemessen. Das feuerfeste Material, mit dem die Ofenwand abgekleidet ist, ist somit sehr unterschiedlichen Temperaturen ausgesetzt, sodass eine hohe Gefahr besteht, dass in dem Material Risse entstehen.In the industry ovens are used, which are lined with refractory material. When operating these furnaces temperatures of more than 1000 ° Celsius arise in the interior. On the other hand, the fireproof wall of these ovens adjoins the environment, the temperature of which is much lower. At an outside temperature of 20 ° Celsius, the temperature of the outside wall is for example about 60 ° C, as the temperature at the surface of the lining values between 400 and 900 ° C are measured. The refractory material with which the furnace wall is lined is thus exposed to very different temperatures, so that there is a high risk of cracks in the material.

In US 1992620 ist eine Wandauskleidung von Industrieöfen nach dem Oberbegriff des Anspruchs 1 beschrieben, bei der drei Schichten, eine Innenschicht, eine mit Gas beaufschlagte Zwischenschicht und eine wandseitige Außenschicht vorhanden sind.In US 1992620 a wall lining of industrial furnaces according to the preamble of claim 1 is described in which there are three layers, an inner layer, a gas-filled intermediate layer and a wall-side outer layer.

In DE 198 16 059 A1 wird ähnlich wie nach G 90 16 206 U1 eine Verschleißschicht beschrieben, die mittels Metallanker an einer Kesselwand befestigt ist, wobei zwischen der Verschleißschicht und der Kesselwand eine druckbeaufschlagte Sperrschicht vorgesehen ist.In DE 198 16 059 A1 a wear layer is described similar to G 90 16 206 U1, which is attached by means of metal anchors to a boiler wall, wherein between the wear layer and the boiler wall a pressurized barrier layer is provided.

Ein Problem besteht nun darin, dass die in dem Ofen entstehenden aggressiven Gase durch diese Risse in der Auskleidung nicht nur auf die dahinter angeordnete abgekleidete Wand, sondern auch auf die Anker treffen und zur Korrosion führen können. Dies gilt selbst für die in der Verschleißschicht eingebetteten Teil der Anker.A problem now is that the aggressive gases produced in the furnace through these cracks in the lining not only on the behind arranged lined wall, but also on the anchor and can lead to corrosion. This is true even for the part of the anchors embedded in the wear layer.

Die der vorliegenden Erfindung zugrunde liegende Aufgabe besteht darin, die maßgebliche Teile der Wandauskleidung vor Korrosion zu schützen.The object underlying the present invention is to protect the relevant parts of the wall lining from corrosion.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass metallische Anker vorgesehen sind mit denen die Verschleißschicht an der Wand befestigt wird, wobei die metallischen Anker durch die Sperrschicht und die Isolierschicht dringen und teilweise in der Verschleißschicht angeordnet sind und mit einem Material umhüllt sind, das bei Betriebstemperaturen schmilzt, verbrennt, erweicht, schwindet, schrumpft, sublimiert, verdampft oder verschwelt, so dass in der Verschleißschicht ein Spalt um den jeweiligen metallischen Anker gebildet ist, in den das die Sperrschicht bildende druckbeaufschlagte Gas eintreten kann und die metallischen Anker in den Spalten zum Schutz vor Korrosion umströmen kann.This object is achieved in that metallic anchors are provided with which the wear layer is attached to the wall, wherein the metallic anchors penetrate through the barrier layer and the insulating layer and are partially disposed in the wear layer and are coated with a material that at operating temperatures melts, burns, softens, shrinks, shrinks, sublimates, evaporates or fades, so that in the wear layer, a gap is formed around the respective metallic anchor into which the pressurized gas forming the barrier layer can enter and the metallic anchors in the gaps for protection can flow around before corrosion.

Besonders bevorzugte Ausführungsformen sind Gegenstand der Unteransprüche.Particularly preferred embodiments are the subject of the dependent claims.

Eine der Schichten besteht üblicherweise aus feuerfestem Material (Steine oder Betone), die über metallische Anker oder ähnlichen Stahlteile an der Wand aus Beton, Stahl oder Ähnlichem befestigt werden. Zwischen diesem als Verschleißschicht dienenden feuerfesten Material und der zu schützenden Wand ist erfindungsgemäß eine druckbeaufschlagte Schicht und eine Isolierschicht aufgebaut. Die druckbeaufschlagte Sperrschicht ist zwischen der Isolierschicht und der Verschleißschicht angeordnet, wobei durch die Isolierschicht das Gas zu der Sperrschicht geleitet wird. Als Gas wird vorzugsweise Luft verwendet. Die Zuführung des Gases wird mit bekannten Mitteln ausgeführt, wobei die Druckzuführung und die Kontrolle des Druckes auf bekannte Weise überwacht wird.One of the layers is usually made of refractory material (stones or concretes) that are attached to the wall of concrete, steel or the like via metallic anchors or similar steel parts. Between this serving as a wear layer refractory material and the wall to be protected according to the invention a pressurized layer and an insulating layer constructed. The pressurized barrier layer is disposed between the insulating layer and the wear layer, through which insulating layer the gas is directed to the barrier layer. The gas used is preferably air. The supply of the gas is carried out by known means, wherein the pressure supply and the control of the pressure is monitored in a known manner.

Gemäß der Erfindung sind die metallischen Anker die zur Befestigung des feuerfesten Materials dienen und die durch die druckbeaufschlagte Sperrschicht dringen ursprünglich mit einem Material umhüllt, das bei den Betriebstemperaturen schmilzt, verbrennt, erweicht, schwindet, schrumpft, sublimiert, verdampft oder verschwelt. Dieses Material verschwindet somit bei Betriebstemperaturen, so dass sich das Sperrgas in der druckbeaufschlagten Schicht auch auf den Bereich um die Anker ausweitet, wodurch die Anker noch besser vor Korrosion durch Schadgase geschützt sind.According to the invention, the metallic anchors which serve to secure the refractory material and which penetrate through the pressurized barrier layer are originally wrapped with a material which melts, burns, softens, shrinks, sublimates, evaporates or foams at operating temperatures. This material thus disappears at operating temperatures, so that the sealing gas in the pressurized layer on the Extends the area around the anchors, making the anchors even better protected against corrosion by noxious gases.

Alternativ weist die druckbeaufschlagte Sperrschicht poröses Material auf, z.B. eine keramische Faser oder Schaumkeramik. Es ist möglich, dass die Sperrschicht vollkommen aus hochporösem Material besteht. Hierdurch wird erreicht, dass einerseits eine gasgefüllte Sperrschicht vorhanden ist, die den Korrosionsangriff verhindert, andererseits ist durch die mechanische Stabilität der hochporösen Schicht der erforderliche mechanische Verbund zwischen den Schichten gewährleistet.Alternatively, the pressurized barrier layer comprises porous material, e.g. a ceramic fiber or ceramic foam. It is possible that the barrier layer consists entirely of highly porous material. This ensures that on the one hand a gas-filled barrier layer is present, which prevents the corrosion attack, on the other hand, the required mechanical bond between the layers is ensured by the mechanical stability of the highly porous layer.

Gemäß einer weiteren besonders bevorzugten Ausführungsform sind in der gasbeaufschlagten Sperrschicht Abstandsnocken angeordnet, die den Abstand zwischen den dieser Sperrschicht benachbarten Schichten bestimmen, wodurch ebenfalls der erforderliche mechanische Verbund zwischen den Schichten gewährleistet werden kann. Diese Abstandsnocken werden vorzugsweise so angeordnet, dass der Bereich der metallischen Anker, die ebenfalls einem besonders kritischen Korrosionsangriff unterliegen, von Sperrluft umströmt ist.According to a further particularly preferred embodiment, spacing cams are arranged in the gas-loaded barrier layer, which determine the distance between the layers adjacent to this barrier layer, whereby the required mechanical bond between the layers can likewise be ensured. These spacer cams are preferably arranged so that the region of the metallic armatures, which are also subject to a particularly critical corrosion attack, is surrounded by sealing air.

In vielen Industrieprozessen werden Öfen verwendet, die einen Blechmantel als Wand aufweisen. Erfindungsgemäß wird dieser Blechmantel mit feuerfestem Material abgekleidet, wobei zwischen dem feuerfesten Material und dem Blechmantel eine druckbeaufschlagte Sperrschicht ausgebildet ist, die weitgehend verhindert, dass aggressive Gase an die Wand, z.B. den Blechmantel, gelangen können.In many industrial processes ovens are used, which have a metal jacket as a wall. According to the invention, this metal jacket is lined with refractory material, wherein between the refractory material and the metal jacket, a pressurized barrier layer is formed, which largely prevents aggressive gases to the wall, eg the metal jacket, can get.

Die Erfindung wird anhand der beigefügten Zeichnung näher erläutert.

Fig. 1
zeigt den Querschnitt der erfindungsgemäßen Wandauskleidung.
The invention will be explained in more detail with reference to the accompanying drawings.
Fig. 1
shows the cross section of the wall lining according to the invention.

Die Wand 1 ist aus Blech hergestellt. Diese Wand 1 ist mit drei Schichten ausgekleidet, nämlich mit der Isolierschicht 2, der druckbeaufschlagten Sperrschicht 3 und der Verschleißschicht 4. Die Verschleißschicht 4 besteht aus feuerfestem Material 5, das über die metallischen Anker 6 an der Wand 1 befestigt ist. Zwischen der Schicht 4 und der Wand 1 befindet sich die druckbeaufschlagte Sperrschicht 3 und die Isolierschicht 2. Die druckbeaufschlagte Sperrschicht 3 wird über die Zuführung 7 mit Gas versorgt, so dass in der Sperrschicht 3 ein Druck entsteht. Diese Sperrschicht 3 ist leer oder mit porösem Material gefüllt und wird mit dem zugefügten Gas druckbeaufschlagt. In der Sperrschicht 3 sind die Abstandsnocken 8 angeordnet, die den Abstand zwischen der Verschleißschicht 4 und der Isolierschicht 2 bestimmen. Die Abstandsnocken 8 sind an dem feuerfesten Material 5 angeformt. Die metallischen Anker 6, mit denen die Schicht 4 an der Wand 1 befestigt wird, dringen durch die Sperrschicht 3 und die Isolierschicht 2. Diese metallischen Anker 6 werden mit einem Material umhüllt, das bei den Betriebstemperaturen schmilzt, verbrennt, erweicht, schwindet, schrumpft, sublimiert, verdampft oder verschwelt. Das Material verschwindet also bei Betriebstemperaturen und es entsteht ein Spalt, so dass das in die Sperrschicht 3 gelangende Gas diese metallischen Anker umströmt und diese vor Korrosion schützt.The wall 1 is made of sheet metal. This wall 1 is lined with three layers, namely with the insulating layer 2, the pressurized barrier layer 3 and the wear layer 4. The wear layer 4 is made of refractory material 5, which is attached via the metal armature 6 to the wall 1. Between the layer 4 and the wall 1 is the pressurized barrier layer 3 and the insulating layer 2. The pressurized barrier layer 3 is supplied via the supply 7 with gas, so that in the barrier layer 3 creates a pressure. This barrier layer 3 is empty or filled with porous material and is pressurized with the added gas. In the barrier layer 3, the spacing cam 8 are arranged, which determine the distance between the wear layer 4 and the insulating layer 2. The spacer cams 8 are formed on the refractory material 5. The metallic anchors 6, with which the layer 4 is fixed to the wall 1, penetrate through the barrier layer 3 and the insulating layer 2. These metallic anchors 6 are coated with a material which melts, burns, softens, shrinks, shrinks at the operating temperatures sublimated, evaporated or carbonized. The material thus disappears at operating temperatures and a gap arises, so that the gas entering the barrier layer 3 flows around these metallic armatures and protects them from corrosion.

In der Darstellung gemäß Fig. 1 ist der Ofeninnenraum 9 oberhalb der Verschleißschicht 4 angeordnet. In diesem Ofeninnenraum 9 beträgt üblicherweise im Betrieb die Temperatur mehr als 1000° Celsius. Die Wand 1 grenzt an die Außentemperatur an, die etwa 20° Celsius beträgt. Dieser Temperaturunterschied zwischen Innen und Außen verursacht oft Risse und Zerstörungen des feuerfesten Materials 5 der Schicht 4. Durch diese Risse in der Schicht 4 wäre es möglich, dass Schadgase aus dem Ofeninnenraum 9 durch die Schichten 4 und 2 hindurch an die Wand 1 gelangen und diese korrodiert. Durch den in der Sperrschicht 3 aufgebauten Druck wird verhindert, dass die Schadgase durch Risse in dem feuerfesten Material 5 der Schicht 4 und durch die Schichten hindurch an die Wand 1 gelangen könnten.In the illustration according to Fig. 1 the furnace interior 9 is arranged above the wear layer 4. In this furnace interior 9, the temperature is usually more than 1000 ° Celsius during operation. The wall 1 adjoins the outside temperature, which is about 20 ° Celsius. This temperature difference between inside and outside often causes cracks and Destruction of the refractory material 5 of the layer 4. These cracks in the layer 4, it would be possible that harmful gases from the furnace interior 9 through the layers 4 and 2 pass through the wall 1 and corroded. The pressure built up in the barrier layer 3 prevents the noxious gases from reaching the wall 1 through cracks in the refractory material 5 of the layer 4 and through the layers.

Claims (6)

  1. A wall lining for industrial kilns for the protection of a wall made of concrete, steel, sheet metal or the like coated with a heat-resistant material, wherein the lining of the wall (1) consists of three layers (4; 3; 2), a wearing surface (4), a pressurizable blocking layer (3) and an insulation layer (2) on the wall side, characterized in that metallic anchors (6) are provided which fasten the wearing surface (4) to the wall (1), wherein the metallic anchors (6) penetrate the blocking layer (3) and the insulation layer (2) and are partially arranged in the wearing surface (4) and are encapsulated with a material which, when subjected to operating temperatures, exhibits one of the following characteristics: melting, burning, softening, shrinking, contracting, sublimation, evaporation or vaporizing such that, in the wearing surface (4), a void (7) develops around the metallic anchor (6) concerned into which the pressurized gas forming the blocking layer (3) may flow and protect the metallic anchors (6) in the voids (7) from corrosion.
  2. The wall lining according to Claim 1,
    characterized in that a mechanical binding is present between the layers (4; 3; 2) forming the lining of the wall (1).
  3. The wall lining according to Claim 1 or 2,
    characterized in that
    the blocking layer (3) includes porous material which contains pressurized gas.
  4. The wall lining according to Claim 1, 2 or 3,
    characterized in that
    spacers (8) are arranged in the blocking layer (3), which determine the distance between the layers (2; 4) adjacent to this blocking layer.
  5. The wall lining according to any one of the preceding claims,
    characterized in that
    the blocking layer (3) is configured as at least one enclosed chamber which contains pressurized gas.
  6. A process for lining a wall made of concrete, steel, sheet metal or the like of kilns having a lining according to any one of Claims 1 to 5,
    characterized in that,
    the metallic anchors (6), prior to arrangement in the wearing surface (4), are encapsulated with a material which, when subjected to operating temperatures, exhibits one of the following characteristics: melting, burning, softening, shrinking, contracting, sublimation, evaporation or vaporizing.
EP08863537.0A 2007-12-22 2008-11-21 Wall lining of industrial ovens Active EP2225492B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007062450 2007-12-22
PCT/EP2008/009856 WO2009080167A1 (en) 2007-12-22 2008-11-21 Wall lining of industrial ovens

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Publication Number Publication Date
EP2225492A1 EP2225492A1 (en) 2010-09-08
EP2225492B1 true EP2225492B1 (en) 2016-01-13

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US (1) US8944042B2 (en)
EP (1) EP2225492B1 (en)
JP (1) JP2011508173A (en)
CA (1) CA2705641A1 (en)
WO (1) WO2009080167A1 (en)

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Publication number Priority date Publication date Assignee Title
GB201700388D0 (en) * 2017-01-10 2017-02-22 Delivita Ltd Portable oven
CN107687796B (en) * 2017-09-28 2023-08-15 浏阳市中洲机械科技有限公司 Safe sounding firework cylinder
JP7422119B2 (en) 2021-11-05 2024-01-25 中外炉工業株式会社 Internal corrosion prevention mechanism of furnace shell

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US8944042B2 (en) 2015-02-03
WO2009080167A1 (en) 2009-07-02
EP2225492A1 (en) 2010-09-08
US20100252018A1 (en) 2010-10-07
CA2705641A1 (en) 2009-07-02
JP2011508173A (en) 2011-03-10

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