EP2302314A1 - Protection system for the internal wall of an oven - Google Patents
Protection system for the internal wall of an oven Download PDFInfo
- Publication number
- EP2302314A1 EP2302314A1 EP10174573A EP10174573A EP2302314A1 EP 2302314 A1 EP2302314 A1 EP 2302314A1 EP 10174573 A EP10174573 A EP 10174573A EP 10174573 A EP10174573 A EP 10174573A EP 2302314 A1 EP2302314 A1 EP 2302314A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- hook elements
- mounting element
- protection system
- furnace inner
- 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.)
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Classifications
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- 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
- F27D1/0003—Linings or walls
- F27D1/004—Linings or walls comprising means for securing bricks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B31/00—Hand tools for applying fasteners
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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
- F23M5/04—Supports for linings
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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
- F23M5/08—Cooling thereof; Tube walls
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- 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
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- 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
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- 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
- F27D1/147—Assembling elements for bricks
- F27D1/148—Means to suspend bricks
Definitions
- the invention relates to a protective system for a furnace inner wall, in particular for a boiler tube wall with at least two attachable to the furnace inner wall hook elements and at least two mutually adjacent to the hook elements mounted corrosion protection bodies. Furthermore, the invention relates to a protected wall portion of a furnace inner wall, in particular a boiler tube wall, and a method for constructing a protective system for a furnace inner wall, in particular a boiler tube wall.
- Interior wall protection systems have long been known in the art. They generally serve to protect the inner walls of industrial furnaces, for example in waste incineration plants, from the very hot and corrosive combustion gases produced during combustion.
- Such protective systems comprise a number of - for example, plate-shaped - corrosion protection bodies, with which the furnace inner walls are covered with respect to the firing space.
- the corrosion protection body serve in the same way as heat protection.
- the corrosion protection bodies are fastened to hook elements, which in turn are fastened to the tube inner wall and protrude from it in the direction of the furnace interior.
- the oven wall to be protected may be formed, for example, as a boiler tube wall.
- a boiler tube wall usually comprises a number of parallel aligned tubes, which are connected in pairs by web-like pipe fins, resulting in a closed wall system.
- the invention is based on the object, a protective system for a furnace inner wall, in particular for a boiler tube wall, with at least two on the furnace inner wall attach fastenable hook elements and at least two adjacent to each other mounted on the hook elements corrosion protection bodies, which can be easily and with high precision attached to furnace inner walls of different geometry. Furthermore, a method for constructing a protection system for a furnace inner wall, in particular a boiler tube wall, to be specified, which is simple and inexpensive to carry out.
- a protective system for a furnace inner wall characterized in that the at least two hook elements are fixed to a common mounting element, wherein the mounting member has a front side, a back and the front with the rear edge sides connecting wherein the at least two hook elements are fixed to the front of the mounting member and wherein the mounting member is fastened with its rear side to the furnace inner wall.
- the decisive advantage of the protective system according to the invention for a furnace inner wall is that by using a common mounting element, the at least two hook elements can be pre-assembled with high precision on the mounting element. Accordingly, those assembly work that requires a particularly high degree of precision - this includes, in particular, the attachment of the hook elements on the furnace inner wall - not under relatively unfavorable conditions in the lining with the protective system firing space to take place, but can under ideal conditions, for example, in an assembly hall performed become.
- the mounting element has at least two hook elements to each of which a corrosion protection body can be mounted, wherein the two corrosion protection bodies are arranged in immediate proximity to each other and thus optimally aligned in the sense of an aligned arrangement and a minimum gap.
- the common mounting element can also comprise more than two hook elements, wherein a larger number of corrosion protection bodies can be optimally aligned with each other both side by side and one above the other or in a matrix-like manner.
- the common mounting element provided with the precisely placed hook elements can then be fastened in a simple fastening step to the furnace inner wall to be protected.
- the common mounting element is plate-shaped.
- the at least two hook elements may be arranged side by side or one above the other. If more than two hook elements are provided, then they can be arranged in a row next to one another, one above the other or in a checkerboard-like arrangement, for example.
- the at least two hook elements are welded or screwed to the common mounting element.
- Other ways of attaching the hook elements to the common mounting element may also be provided.
- the protection system according to the invention is particularly suitable for the protection of boiler tube walls. These are usually formed as a number of parallel aligned tubes with the tubes in pairs connecting pipe fins. So that the hook elements protrude from the elongated pipe fins, it is provided as a further embodiment of the invention that the mounting element is designed as a mounting strip with an elongated front and an elongated back, wherein the at least two hook elements are attached to the elongated front of the mounting rail.
- the mounting rail two or more above the other or - in the case of horizontal pipes of the boiler tube wall - arranged side by side hook elements.
- the furnace inner wall to be lined extends over a greater length than the length of the mounting element, it may be necessary to attach a plurality of mounting elements next to or above each other.
- at least two opposite edge sides of the mounting element have a corresponding shape.
- edge side is of cylindrical concave design and the other edge side is of cylindrical convexity.
- edge side offers the advantage that they are simple allow slight corrections to the relative orientation of adjacent mounting elements.
- the at least two hook elements to be fastened to the common mounting element in turn may have different geometries, for example, they may be formed stamp-shaped, Y-shaped, T-shaped or simply protruding pins. Particularly suitable is an L-shape has been found in which the free end portion of the hook element is angled substantially at right angles.
- the common mounting element can be fastened in various ways to the furnace inner wall to be protected.
- it can be welded or screwed.
- the mounting element preferably has at least one opening, in particular in the form of an oblong hole, via which it can be fastened to the furnace inner wall, in particular welded to the furnace inner wall by, for example, the weld bead is placed along the boundary of the opening.
- the mounting element further preferably has a local material thickening for substantially punctual support on the furnace inner wall.
- Such unevenness may arise, for example, in that hook elements previously welded directly to the furnace inner wall are not completely removed or abraded.
- the at least one opening in the region of the material thickening is arranged, so that there the mounting element can be welded to the lining furnace wall to be lined, for example.
- Another aspect of the invention relates to a protected band portion of a furnace inner wall, in particular a boiler tube wall, with a protection system according to any one of claims 1-10.
- the method is simple and can be carried out with high precision, since the relative orientation of the individual hook elements of the protection system, which is crucial for a precise and completely covering structure of the protection system, under ideal manufacturing conditions before final attachment to the furnace inner wall can be done.
- a further aspect of the present invention relates to the use of a mounting element having a front side, a rear side and the front sides connecting the front side, at least two hook elements being fastened to the front side of the mounting element, in a protection system for a furnace inner wall, in particular a boiler tube wall.
- FIG. 1 is a protection system for a furnace inner wall, in the present case a boiler tube wall 1, shown.
- the boiler tube wall 1 comprises a plurality of vertically and mutually parallel tubes 2, which are connected in pairs by web-like pipe fins 3 with each other to form a closed wall system.
- the protection system comprises a plurality of hook elements 4, which in the present case are L-shaped, and are arranged in a checkerboard pattern on each second pipe fin 3 next to each other and along each of a pipe fin 3 with each other.
- a corrosion protection body 5 is hooked into each hook element 4, so that complete coverage of the boiler tube wall 1 towards the combustion chamber results with a minimum joint width between adjacent corrosion protection bodies.
- the protection system for reasons of clarity only partially built and shown partially cut.
- the hook elements are not directly mounted on the pipe fins 3, but in pairs mounted one above the other on a common mounting element 6, welded in this case.
- the mounting element 6 is strip-shaped and comprises an elongated front 6a, a (non-visible) back 6b, and narrow edge sides 6c, 6d, 6e, 6f.
- the use of a mounting element or here a mounting strip 6, has the decisive advantage that the hook elements 4 need not be welded directly to the pipe fins 3 of the boiler tube wall 1, which regularly with only limited precision succeeds.
- Fig. 1 - Corrosion protection body 5 shown partially in sectional view are made of a refractory material (for example, silicon carbide) and may have different geometries. Preferably, they are plate-shaped with square, in this case square, base formed. In the present case, they also have a guide channel 5a extending essentially parallel to the extent of their front or rear sides, in which the angled end section of the respective hook element 4 is guided in the fastened state of the anti-corrosion body 5, completely protecting it against the penetration of hot, corrosive gases is. Furthermore, the horizontal section of the L-shaped hook elements 4 is surrounded by material cheeks 5b of the anticorrosive body 5 such that it is held on the hook element 4 substantially without play, which greatly facilitates a precise construction of the protection system.
- a refractory material for example, silicon carbide
- mounting strips 6 are prefabricated precisely, the relative distances between adjacent hook elements 4, which are attached to different mounting strips 6, always met precisely. It is understood that individual mounting strips can also include more than just two hook elements. In the case of boiler tube walls, for example mounting strips are possible, which extend over the entire height of the boiler tube wall.
- Fig. 2 shows a single tube 2 with flanged pipe fin 3 and attached to the pipe fin 3 mounting rails.
- 6 Fig. 3 shows the view with offset shown upper mounting bar 6.
- the opposite narrow edge side 6c, 6e have a mutually corresponding shape, so that a precise juxtaposition of mounting strips 6 is easily possible.
- one edge side 6e has a cylindrically concave design and the other edge side 6c has a cylindrically convex design.
- This special shape makes it possible to make slight corrections in the relative orientation of the mounting strips 6, wherein further a flat contact between the adjacent mounting strips 6 is ensured over the edge sides 6c, 6e. This is particularly advantageous if in each case adjacent mounting rails 6 must be welded to each other at these surfaces.
- the mounting rails 6 a - present centrally arranged - opening 6g, which is designed here as a slot.
- the mounting strip 6 can be attached in a simple manner to a pipe fin 3 of the boiler tube wall, for example, welded, are.
- the mounting strip 6 in the region of the elongated hole 6g on a rear material thickening 6h.
Abstract
Description
Die Erfindung betrifft ein Schutzsystem für eine Ofeninnenwand, insbesondere für eine Kesselrohrwand mit wenigstens zwei an der Ofeninnenwand befestigbaren Hakenelementen und wenigstens zwei zueinander benachbart an den Hakenelementen montierten Korrosionsschutzkörpern. Ferner betrifft die Erfindung einen geschützten Wandabschnitt einer Ofeninnenwand, insbesondere einer Kesselrohrwand, sowie ein Verfahren zum Aufbau eines Schutzsystems für eine Ofeninnenwand, insbesondere eine Kesselrohrwand.The invention relates to a protective system for a furnace inner wall, in particular for a boiler tube wall with at least two attachable to the furnace inner wall hook elements and at least two mutually adjacent to the hook elements mounted corrosion protection bodies. Furthermore, the invention relates to a protected wall portion of a furnace inner wall, in particular a boiler tube wall, and a method for constructing a protective system for a furnace inner wall, in particular a boiler tube wall.
Schutzsysteme für Ofeninnenwände sind aus dem Stand der Technik seit langem bekannt. Sie dienen allgemein dem Schutz der Innenwände industrieller Feuerungsöfen, beispielsweise in Müllverbrennungsanlagen, vor den bei der Verbrennung entstehenden sehr heißen und korrosiv wirkenden Verbrennungsgasen. Derartige Schutzsysteme umfassen eine Anzahl von - beispielsweise plattenförmig ausgebildeten - Korrosionsschutzkörpern, mit welchen die Ofeninnenwände gegenüber dem Feuerungsraum verkleidet sind. Dabei dienen die Korrosionsschutzkörper in gleicher Weise auch als Hitzeschutz. Im Einzelnen sind die Korrosionsschutzkörper an Hakenelementen befestigt, die ihrerseits an der Rohrinnenwand befestigt sind und von ihr in Richtung des Ofeninnenraums abstehen.Interior wall protection systems have long been known in the art. They generally serve to protect the inner walls of industrial furnaces, for example in waste incineration plants, from the very hot and corrosive combustion gases produced during combustion. Such protective systems comprise a number of - for example, plate-shaped - corrosion protection bodies, with which the furnace inner walls are covered with respect to the firing space. The corrosion protection body serve in the same way as heat protection. In detail, the corrosion protection bodies are fastened to hook elements, which in turn are fastened to the tube inner wall and protrude from it in the direction of the furnace interior.
Die zu schützende Ofeninnenwand kann beispielsweise als Kesselrohrwand ausgebildet sein. Eine Kesselrohrwand umfasst üblicherweise eine Anzahl parallel ausgerichteter Rohre, die paarweise durch stegartig ausgebildete Rohrflossen miteinander verbunden sind, wodurch sich ein geschlossenes Wandsystem ergibt.The oven wall to be protected may be formed, for example, as a boiler tube wall. A boiler tube wall usually comprises a number of parallel aligned tubes, which are connected in pairs by web-like pipe fins, resulting in a closed wall system.
Problematisch an dem bekannten Schutzsystem für Ofeninnenwände ist, dass die Befestigung der Hakenelemente an der Ofeninnenwand oftmals nicht mit hinreichender Präzision erfolgen kann, so dass die an den Hakenelementen befestigten Korrosionsschutzkörper nicht in der gewünschten Weise spaltfrei aneinander liegen und ein geschlossenes Schutzsystem für die Ofeninnenwand bilden. Um gleichwohl ein vollständig deckendes Schutzsystem zu errichten, ist es daher erforderlich, die Korrosionsschutzkörper mit ausreichend Spiel an den Hakenelementen zu befestigen und nach einer Grobmontage nachträglich auszurichten, was mit erheblichen Zeitaufwand und Kosten verbunden ist.A problem with the known protection system for furnace interior walls that the attachment of the hook elements on the furnace inner wall often can not be done with sufficient precision, so that the attached to the hook elements anti-corrosion body are not in the desired manner gap-free together and form a closed protection system for the furnace inner wall. In order nevertheless to establish a completely covering protection system, it is therefore necessary to attach the corrosion protection body with sufficient clearance on the hook elements and to align later after a rough assembly, which is associated with considerable expenditure of time and costs.
Ein weiterer Nachteil derartiger aus dem Stand der Technik bekannter Schutzsysteme (z.B.
Hiervon ausgehend liegt der Erfindung die Aufgabe zu Grunde, ein Schutzsystem für eine Ofeninnenwand, insbesondere für eine Kesselrohrwand, mit wenigstens zwei an der Ofeninnenwand befestigbaren Hakenelementen und wenigstens zwei zueinander benachbart an den Hakenelementen montierten Korrosionsschutzkörpern anzugeben, welches sich einfach und mit hoher Präzision an Ofeninnenwänden unterschiedlicher Geometrie anbringen lässt. Ferner soll ein Verfahren zum Aufbau eines Schutzsystems für eine Ofeninnenwand, insbesondere eine Kesselrohrwand, angegeben werden, welches einfach und zu geringen Kosten durchführbar ist.On this basis, the invention is based on the object, a protective system for a furnace inner wall, in particular for a boiler tube wall, with at least two on the furnace inner wall attach fastenable hook elements and at least two adjacent to each other mounted on the hook elements corrosion protection bodies, which can be easily and with high precision attached to furnace inner walls of different geometry. Furthermore, a method for constructing a protection system for a furnace inner wall, in particular a boiler tube wall, to be specified, which is simple and inexpensive to carry out.
Die vorstehend genannte Aufgabe wird erfindungsgemäß mit einem Schutzsystem für eine Ofeninnenwand nach dem Oberbegriff des Patentanspruches 1 dadurch gelöst, dass die wenigstens zwei Hakenelemente an einem gemeinsamen Montageelement befestigt sind, wobei das Montageelement eine Vorderseite, eine Rückseite und die Vorderseite mit der Rückseite verbindende Randseiten aufweist, wobei die wenigstens zwei Hakenelemente an der Vorderseite des Montagelements befestigt sind und wobei das Montageelement mit seiner Rückseite an der Ofeninnenwand befestigbar ist.The above object is achieved with a protective system for a furnace inner wall according to the preamble of
Der entscheidende Vorteil des erfindungsgemäßen Schutzsystems für eine Ofeninnenwand besteht darin, dass durch Einsatz eines gemeinsamen Montageelements die wenigstens zwei Hakenelemente mit hoher Präzision an dem Montageelement vormontiert werden können. Demnach brauchen diejenigen Montagearbeiten, die eine besonders hohe Präzision erfordern - hierzu zählt insbesondere das Anbringen der Hakenelemente an der Ofeninnenwand -, nicht unter vergleichsweise ungünstigen Bedingungen in dem mit dem Schutzsystem auszukleidenden Feuerungsraum zu erfolgen, sondern können unter idealen Fertigungsbedingen beispielsweise in einer Montagehalle, durchgeführt werden.The decisive advantage of the protective system according to the invention for a furnace inner wall is that by using a common mounting element, the at least two hook elements can be pre-assembled with high precision on the mounting element. Accordingly, those assembly work that requires a particularly high degree of precision - this includes, in particular, the attachment of the hook elements on the furnace inner wall - not under relatively unfavorable conditions in the lining with the protective system firing space to take place, but can under ideal conditions, for example, in an assembly hall performed become.
Erfindungsgemäß weist das Montageelement wenigstens zwei Hakenelemente auf, an denen jeweils ein Korrosionsschutzkörper montiert werden kann, wobei die beiden Korrosionsschutzkörper in unmittelbarer Nachbarschaft zueinander angeordnet sind und somit im Sinne einer fluchtenden Anordnung und eines minimalen Spaltes optimal ausgerichtet sind. Es versteht sich, dass das gemeinsame Montageelement auch mehr als zwei Hakenelemente umfassen kann, wobei eine größere Anzahl von Korrosionsschutzkörpern optimal zueinander fluchtend sowohl nebeneinander als auch übereinander oder matrixartig neben- und übereinander ausgerichtet werden können. Das mit den präzise platzierten Hakenelementen versehene gemeinsame Montageelement kann sodann in einem einfachen Befestigungsschritt an der zu schützenden Ofeninnenwand befestigt werden.According to the invention, the mounting element has at least two hook elements to each of which a corrosion protection body can be mounted, wherein the two corrosion protection bodies are arranged in immediate proximity to each other and thus optimally aligned in the sense of an aligned arrangement and a minimum gap. It is understood that the common mounting element can also comprise more than two hook elements, wherein a larger number of corrosion protection bodies can be optimally aligned with each other both side by side and one above the other or in a matrix-like manner. The common mounting element provided with the precisely placed hook elements can then be fastened in a simple fastening step to the furnace inner wall to be protected.
Nach einer ersten vorteilhaften Ausgestaltung der Erfindung ist das gemeinsame Montageelement plattenförmig ausgebildet. Hierbei können die wenigstens zwei Hakenelemente nebeneinander oder übereinander angeordnet sein. Sind mehr als zwei Hakenelemente vorgesehen, so können diese in einer Reihe nebeneinander, übereinander oder in beispielsweise einer schachbrettartigen Anordnung angeordnet sein.According to a first advantageous embodiment of the invention, the common mounting element is plate-shaped. Here, the at least two hook elements may be arranged side by side or one above the other. If more than two hook elements are provided, then they can be arranged in a row next to one another, one above the other or in a checkerboard-like arrangement, for example.
Nach einer weiteren Ausgestaltung der Erfindung sind die wenigstens zwei Hakenelemente an das gemeinsame Montageelement angeschweißt oder angeschraubt. Weitere Möglichkeiten der Befestigung der Hakenelemente an dem gemeinsamen Montageelement können ebenfalls vorgesehen sein. Das erfindungsgemäße Schutzsystem eignet sich insbesondere für den Schutz von Kesselrohrwänden. Diese sind üblicherweise als eine Anzahl parallel zueinander ausgerichteter Rohre mit die Rohre paarweise verbindenden Rohrflossen ausgebildet. Damit die Hakenelemente von den langgestreckten Rohrflossen abstehen, ist als weitere Ausgestaltung der Erfindung vorgesehen, dass das Montageelement als Montageleiste mit einer langgestreckten Vorderseite und einer langgestreckten Rückseite ausgebildet ist, wobei die wenigstens zwei Hakenelemente an der langgestreckten Vorderseite der Montageleiste befestigt sind. Wiederum kann die Montageleiste zwei oder mehr übereinander oder - bei waagerecht ausgerichteten Rohren der Kesselrohrwand - nebeneinander angeordnete Hakenelemente umfassen.According to a further embodiment of the invention, the at least two hook elements are welded or screwed to the common mounting element. Other ways of attaching the hook elements to the common mounting element may also be provided. The protection system according to the invention is particularly suitable for the protection of boiler tube walls. These are usually formed as a number of parallel aligned tubes with the tubes in pairs connecting pipe fins. So that the hook elements protrude from the elongated pipe fins, it is provided as a further embodiment of the invention that the mounting element is designed as a mounting strip with an elongated front and an elongated back, wherein the at least two hook elements are attached to the elongated front of the mounting rail. Again, the mounting rail two or more above the other or - in the case of horizontal pipes of the boiler tube wall - arranged side by side hook elements.
Erstreckt sich die auszukleidende Ofeninnenwand über eine größere Länge als die Länge des Montageelementes, so kann es erforderlich sein, mehrere Montageelemente nebeneinander oder übereinander anzubringen. Um eine präzise Ausrichtung benachbarter Montageelemente zueinander zu erleichtern, ist nach einer weiteren Ausgestaltung der Erfindung vorgesehen, dass wenigstens zwei gegenüberliegende Randseiten des Montageelements eine korrespondierende Form aufweisen.If the furnace inner wall to be lined extends over a greater length than the length of the mounting element, it may be necessary to attach a plurality of mounting elements next to or above each other. In order to facilitate a precise alignment of adjacent mounting elements to one another, according to a further embodiment of the invention, it is provided that at least two opposite edge sides of the mounting element have a corresponding shape.
Als korrespondierende Form kommen beispielsweise gestufte Formen, Nut-Feder-Geometrien oder auch gezackte Geometrien in Frage. Als besonders geeignet hat es sich herausgestellt, wenn die eine Randseite zylindrisch konkav ausgebildet ist und die andere Randseite zylindrisch konvex ausgebildet ist. Eine solche Ausbildung der korrespondierenden Formen der Randseiten bietet den Vorteil, dass sie in einfacher Weise leichte Korrekturen an der relativen Ausrichtung benachbarter Montageelemente erlauben.As a corresponding form, for example, stepped shapes, tongue and groove geometries or jagged geometries come into question. It has proved particularly suitable if one edge side is of cylindrical concave design and the other edge side is of cylindrical convexity. Such a design of the corresponding forms of the edge sides offers the advantage that they are simple allow slight corrections to the relative orientation of adjacent mounting elements.
Die an dem gemeinsamen Montageelement zu befestigenden wenigstens zwei Hakenelemente ihrerseits können unterschiedliche Geometrien aufweisen, beispielsweise können sie stempelförmig, Y-förmig, T-förmig oder als einfach abstehende Stifte ausgebildet sein. Als besonders geeignet hat sich eine L-Form erwiesen, bei der der freie Endabschnitt des Hakenelements im Wesentlichen rechtwinklig abgewinkelt ist.The at least two hook elements to be fastened to the common mounting element in turn may have different geometries, for example, they may be formed stamp-shaped, Y-shaped, T-shaped or simply protruding pins. Particularly suitable is an L-shape has been found in which the free end portion of the hook element is angled substantially at right angles.
Das gemeinsame Montageelement kann auf verschiedene Weise an der zu schützenden Ofeninnenwand befestigt werden. Beispielsweise kann es angeschweißt oder angeschraubt werden. Hierzu weist das Montageelement bevorzugt wenigstens eine Öffnung, insbesondere in Form eines Langloches, auf, über welche es an der Ofeninnenwand befestigbar ist, insbesondere an die Ofeninnenwand angeschweißt werden kann, indem beispielsweise die Schweißraupe entlang der Berandung der Öffnung gelegt wird.The common mounting element can be fastened in various ways to the furnace inner wall to be protected. For example, it can be welded or screwed. For this purpose, the mounting element preferably has at least one opening, in particular in the form of an oblong hole, via which it can be fastened to the furnace inner wall, in particular welded to the furnace inner wall by, for example, the weld bead is placed along the boundary of the opening.
Um lokale Unebenheiten auf der auszukleidenden Ofeninnenwand zu kompensieren, weist das Montageelement ferner bevorzugt eine lokale Materialverdickung zur im Wesentlichen punktuellen Auflage auf der Ofeninnenwand auf. Derartige Unebenheiten können beispielsweise dadurch entstehen, dass zuvor direkt an die Ofeninnenwand angeschweißte Hakenelemente nicht vollständig entfernt beziehungsweise abgeschliffen sind.In order to compensate for local unevenness on the furnace inner wall to be lined, the mounting element further preferably has a local material thickening for substantially punctual support on the furnace inner wall. Such unevenness may arise, for example, in that hook elements previously welded directly to the furnace inner wall are not completely removed or abraded.
Nach einer besonders vorteilhaften Ausgestaltung der Erfindung ist die wenigstens eine Öffnung im Bereich der Materialverdickung angeordnet, so dass dort das Montageelement an die auszukleidende Ofeninnenwand beispielsweise angeschweißt werden kann.According to a particularly advantageous embodiment of the invention, the at least one opening in the region of the material thickening is arranged, so that there the mounting element can be welded to the lining furnace wall to be lined, for example.
Ein weiterer Aspekt der Erfindung betrifft einen geschützten Bandabschnitt einer Ofeninnenwand, insbesondere einer Kesselrohrwand, mit einem Schutzsystem nach einem der Ansprüche 1-10.Another aspect of the invention relates to a protected band portion of a furnace inner wall, in particular a boiler tube wall, with a protection system according to any one of claims 1-10.
Zu den Vorteilen des Bandabschnitts wird auf das Vorstehende verwiesen.For the advantages of the band section, reference is made to the above.
Die eingangs genannte Aufgabe wird auch durch ein Verfahren zum Aufbau eines Schutzssystems für eine Ofeninnenwand insbesondere eine Kesselrohrwand, gelöst, welches durch folgende Schritte gekennzeichnet ist:
- Befestigen wenigstens zweier Hakenelemente an einem gemeinsamen Montageelement,
- Befestigen des mit den wenigstens zwei Hakenelementen versehenen Montageelements an der Ofeninnenwand,
- Montieren jeweils eines Korrosionsschutzkörpers an jeweils eines der wenigstens zwei Hakenelemente.
- Fastening at least two hook elements to a common mounting element,
- Fixing the mounting element provided with the at least two hook elements to the furnace inner wall,
- Assemble a respective corrosion protection body on each one of the at least two hook elements.
Zu den Vorteilen des erfindungsgemäßen Verfahrens wird ebenfalls auf das Vorstehende verwiesen. Insbesondere ist das Verfahren einfach und mit hoher Präzision ausführbar, da die relative Ausrichtung der einzelnen Hakenelemente des Schutzsystems, die für einen präzisen und vollständig deckenden Aufbau des Schutzsystems entscheidend ist, unter idealen Fertigungsbedingungen vor dem endgültigen Anbringen an die Ofeninnenwand erfolgen kann.For the advantages of the method according to the invention, reference is also made to the above. In particular, the method is simple and can be carried out with high precision, since the relative orientation of the individual hook elements of the protection system, which is crucial for a precise and completely covering structure of the protection system, under ideal manufacturing conditions before final attachment to the furnace inner wall can be done.
Ein weiterer Aspekt der vorliegenden Erfindung betrifft die Verwendung eines Montageelements mit einer Vorderseite, einer Rückseite und die Vorderseite mit der Rückseite verbindenden Randseiten, wobei wenigstens zwei Hakenelemente an der Vorderseite des Montagelements befestigt sind, in einem Schutzsystem für eine Ofeninnenwand, insbesondere eine Kesselrohrwand.A further aspect of the present invention relates to the use of a mounting element having a front side, a rear side and the front sides connecting the front side, at least two hook elements being fastened to the front side of the mounting element, in a protection system for a furnace inner wall, in particular a boiler tube wall.
Für die Vorteile dieser Verwendungsmöglichkeit gilt das vorstehend Gesagte wiederum entsprechend.For the advantages of this use, the above applies again accordingly.
Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels darstellenden Zeichnung näher erläutert.In the following the invention will be explained in more detail with reference to an embodiment illustrative drawing.
Es zeigen:
- Fig. 1
- ein teilweise errichtetes Schutzsystem für eine Kesselrohrwand in perspektivischer, teilweise geschnittener Ansicht,
- Fig. 2
- ein Rohr mit angeflanschter Rohrflosse der Kesselrohrwand aus
Fig. 1 mit übereinander an der Rohrflosse befestigten Montageleisten in perspektivischer Ansicht, - Fig. 3
- die Ansicht aus
Fig. 2 mit versetzt dargestellter oberer Montageleiste und - Fig. 4
- die Einzelheit IV aus
.Figur 3
- Fig. 1
- a partially built protection system for a boiler tube wall in a perspective, partially sectioned view,
- Fig. 2
- a pipe with flanged pipe fin of the boiler tube wall
Fig. 1 with mounting strips fastened to one another on the pipe fin in a perspective view, - Fig. 3
- the view
Fig. 2 with offset shown upper mounting rail and - Fig. 4
- the detail IV
FIG. 3 ,
In
Bei dem Schutzsystem der
Die in
Die Montageleisten 6 selbst - bei nicht als Kesselrohrwand ausgebildeten Ofeninnenwände können diese auch als Montageplatten beliebiger Form mit untereinander und nebeneinander angeordneten Hakenelementen ausgebildet sein - können ebenfalls mit hoher Präzision vorgefertigt sein, so dass sie an der Kesselrohrwand 1 mit vormontierten Hakenelementen 4 in einfach Weise übereinander und nebeneinander angebracht, beispielsweise angeschweißt, werden können. Neben einer Schweißung ist selbstverständlich jede andere geeignete Art der Befestigung, beispielsweise ein Verschrauben, möglich.The mounting strips 6 themselves - if not formed as a boiler tube wall furnace inner walls, these can also be designed as mounting plates of any shape with each other and arranged side by side hook elements - can also be prefabricated with high precision, so that they can be attached to the
Da die Montagleisten 6 präzise vorgefertigt sind, sind auch die relativen Abstände benachbarter Hakenelemente 4, die an unterschiedlichen Montageleisten 6 befestigt sind, stets präzise eingehalten. Es versteht sich dabei, dass einzelne Montageleisten auch mehr als lediglich zwei Hakenelemente umfassen können. Im Falle von Kesselrohrwänden sind beispielsweise Montageleisten möglich, welche sich über die gesamte Höhe der Kesselrohrwand erstrecken.Since the mounting
Wie in den
Claims (13)
dadurch gekennzeichnet, dass die wenigstens zwei Hakenelemente (4) an einem gemeinsamen Montageelement (6) befestigt sind, wobei das Montageelement (6) eine Vorderseite (6a), eine Rückseite (6b) und die Vorderseite (6a) mit der Rückseite (6b) verbindende Randseiten (6c, 6d, 6e, 6f) aufweist, wobei die wenigstens zwei Hakenelemente (4) an der Vorderseite (6a) des Montagelements (6) befestigt sind und wobei das Montageelement (6) mit seiner Rückseite (6b) an der Ofeninnenwand (1) befestigbar ist.Protection system for an internal furnace wall, in particular for a boiler tube wall (1), with at least two hook elements (4) which can be fastened to the furnace inner wall (1) and at least two corrosion protection bodies (5) mounted adjacent to one another on the hook elements (4),
characterized in that the at least two hook elements (4) are fastened to a common mounting element (6), the mounting element (6) having a front side (6a), a rear side (6b) and the front side (6a) with the rear side (6b) connecting edge sides (6c, 6d, 6e, 6f), wherein the at least two hook elements (4) on the front side (6a) of the mounting element (6) are fastened and wherein the mounting member (6) with its back (6b) on the furnace inner wall (1) is attachable.
dadurch gekennzeichnet, dass das Montageelement (6) plattenförmig ausgebildet ist.Protection system according to claim 1,
characterized in that the mounting element (6) is plate-shaped.
dadurch gekennzeichnet, dass das Montageelement als Montageleiste (6) mit einer langgestreckten Vorderseite (6a) und einer langgestreckten Rückseite (6b) ausgebildet ist.Protection system according to claim 1,
characterized in that the mounting element is designed as a mounting strip (6) with an elongated front side (6a) and an elongate rear side (6b).
dadurch gekennzeichnet, dass wenigstens zwei gegenüberliegende Randseiten (6c, 6e) des Montagelements (6) eine korrespondierende Form aufweisen.Protection system according to one of claims 1 to 3,
characterized in that at least two opposite edge sides (6c, 6e) of the mounting element (6) have a corresponding shape.
dadurch gekennzeichnet, dass die eine Randseite (6e) zylindrisch konkav ausgebildet ist und die andere Randseite (6c) zylindrisch konvex ausgebildet ist.Protection system according to claim 4,
characterized in that the one edge side (6e) is cylindrically concave and the other edge side (6c) is cylindrically convex.
dadurch gekennzeichnet, dass die wenigstens zwei Hakenelemente (4) an dem Montageelement (6) angeschweißt oder angeschraubt sind.Protection system according to one of claims 1 to 5,
characterized in that the at least two hook elements (4) are welded or screwed to the mounting element (6).
dadurch gekennzeichnet, dass die Hakenelemente (4) L-förmig ausgebildet sind.Protection system according to one of claims 1 to 6,
characterized in that the hook elements (4) are L-shaped.
dadurch gekennzeichnet, dass das Montageelement (6) wenigstens eine Öffnung, insbesondere in Form eines Langloches (6g), aufweist, über welche es an die Ofeninnenwand (1) befestigbar ist.Protection system according to one of claims 1 to 7,
characterized in that the mounting element (6) has at least one opening, in particular in the form of a slot (6g), via which it can be fastened to the furnace inner wall (1).
dadurch gekennzeichnet, dass das Montageelement (6) eine lokale Materialverdickung (6h) zur im Wesentlichen punktuellen Auflage auf der Ofeninnenwand (1) aufweist.Protection system according to one of claims 1 to 8,
characterized in that the mounting element (6) has a local material thickening (6h) for substantially punctual support on the furnace inner wall (1).
dadurch gekennzeichnet, dass die wenigstens eine Öffnung (6g) im Bereich der Materialverdickung (6h) angeordnet ist.Protection system according to claim 8 and 9,
characterized in that the at least one opening (6g) in the region of the material thickening (6h) is arranged.
gekennzeichnet durch folgende Schritte:
characterized by the following steps:
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009039389A DE102009039389A1 (en) | 2009-08-31 | 2009-08-31 | Protection system for a furnace inner wall |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2302314A1 true EP2302314A1 (en) | 2011-03-30 |
Family
ID=43086044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10174573A Withdrawn EP2302314A1 (en) | 2009-08-31 | 2010-08-31 | Protection system for the internal wall of an oven |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2302314A1 (en) |
DE (2) | DE102009039389A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017120561B4 (en) | 2017-09-06 | 2023-03-23 | Chemin Gmbh | heat exchanger |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847849A (en) * | 1955-11-28 | 1958-08-19 | Georges P Reintjes | Modular suspended wall |
DE1433509A1 (en) * | 1963-09-24 | 1968-12-19 | Didier Werke Ag | Hearth walls, especially back walls of industrial ovens, e.g. Siemens-Martin-OEfen |
US3850146A (en) * | 1973-01-15 | 1974-11-26 | D Frame | Boiler tube shielding wall |
EP0304705A1 (en) * | 1987-08-29 | 1989-03-01 | JÜNGER & GRÄTER GMBH & CO. Feuerfestbau | Anchor for refractory slabs suspended in front of a collection of steel tubes |
JP2001272175A (en) * | 2000-03-29 | 2001-10-05 | Meisei Ind Co Ltd | Mounting structure and mounting method for refractory material |
DE69906120T2 (en) * | 1998-10-30 | 2003-12-04 | Lafarge Refractories Issy Les | LINING AND METHOD FOR LINING A WALL OF A DEVICE FOR TERMINAL TREATMENT, MOLDED STONE AND ANCHORING THEREFOR |
DE10361104B4 (en) | 2003-12-22 | 2005-10-06 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Heat protection body |
DE102006062325A1 (en) * | 2006-12-22 | 2008-07-03 | Karrena Gmbh | Corrosion protection for pipe wall of combustion chamber, comprises ceramic plate that is mounted at intermediate space on pipe wall on combustion side, where intermediate space between pipe wall and ceramic plate is penetrated by gas |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2075602A (en) * | 1933-08-28 | 1937-03-30 | George W Davey | Furnace wall structure |
DE19912943C1 (en) * | 1999-03-23 | 2000-08-24 | Didier Werke Ag | Ceramic perforated plate for in-feed of firing cavity, with recess let into each vertical side wall in built-in position of plate |
-
2009
- 2009-08-31 DE DE102009039389A patent/DE102009039389A1/en not_active Withdrawn
- 2009-08-31 DE DE202009018820U patent/DE202009018820U1/en not_active Expired - Lifetime
-
2010
- 2010-08-31 EP EP10174573A patent/EP2302314A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2847849A (en) * | 1955-11-28 | 1958-08-19 | Georges P Reintjes | Modular suspended wall |
DE1433509A1 (en) * | 1963-09-24 | 1968-12-19 | Didier Werke Ag | Hearth walls, especially back walls of industrial ovens, e.g. Siemens-Martin-OEfen |
US3850146A (en) * | 1973-01-15 | 1974-11-26 | D Frame | Boiler tube shielding wall |
EP0304705A1 (en) * | 1987-08-29 | 1989-03-01 | JÜNGER & GRÄTER GMBH & CO. Feuerfestbau | Anchor for refractory slabs suspended in front of a collection of steel tubes |
DE69906120T2 (en) * | 1998-10-30 | 2003-12-04 | Lafarge Refractories Issy Les | LINING AND METHOD FOR LINING A WALL OF A DEVICE FOR TERMINAL TREATMENT, MOLDED STONE AND ANCHORING THEREFOR |
JP2001272175A (en) * | 2000-03-29 | 2001-10-05 | Meisei Ind Co Ltd | Mounting structure and mounting method for refractory material |
DE10361104B4 (en) | 2003-12-22 | 2005-10-06 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Heat protection body |
DE102006062325A1 (en) * | 2006-12-22 | 2008-07-03 | Karrena Gmbh | Corrosion protection for pipe wall of combustion chamber, comprises ceramic plate that is mounted at intermediate space on pipe wall on combustion side, where intermediate space between pipe wall and ceramic plate is penetrated by gas |
Also Published As
Publication number | Publication date |
---|---|
DE202009018820U1 (en) | 2013-10-10 |
DE102009039389A8 (en) | 2011-06-01 |
DE102009039389A1 (en) | 2011-03-03 |
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