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EP2189743B1 - Thermal insulation cover for industrial furnaces - Google Patents

Thermal insulation cover for industrial furnaces Download PDF

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Publication number
EP2189743B1
EP2189743B1 EP09013944.5A EP09013944A EP2189743B1 EP 2189743 B1 EP2189743 B1 EP 2189743B1 EP 09013944 A EP09013944 A EP 09013944A EP 2189743 B1 EP2189743 B1 EP 2189743B1
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EP
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Prior art keywords
block
blocks
groove
steel
heat
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EP09013944.5A
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German (de)
French (fr)
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EP2189743A1 (en
Inventor
Markus Dipl.-Ing. Horn
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Juenger and Graeter Feuerfestbau GmbH
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Juenger and Graeter Feuerfestbau GmbH
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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
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • 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
    • F23M5/04—Supports for linings
    • 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
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/06—Composite bricks or blocks, e.g. panels, modules
    • F27D1/063—Individual composite bricks or blocks

Definitions

  • the invention relates to a heat-insulating lining for walls of industrial furnaces with refractory blocks (eg refractory bricks) and steel anchors holding the blocks on the metal wall, wherein in the narrow sides of each block a circumferential groove is formed and at least one steel anchor with a point in the groove of a block.
  • refractory blocks eg refractory bricks
  • steel anchors holding the blocks on the metal wall, wherein in the narrow sides of each block a circumferential groove is formed and at least one steel anchor with a point in the groove of a block.
  • the invention also relates to a method for producing a heat-insulating lining for walls of industrial furnaces with refractory blocks, in whose narrow sides in each case a circumferential groove is formed, wherein the blocks are adjusted via steel anchors.
  • a protective wall structure is known for a boiler formed of a plurality of stone slabs.
  • a potting compound is pressed between the stone slabs.
  • a ceramic bulkhead structure for a boiler formed of a plurality of plates.
  • a deformable leveling layer is optionally arranged between the plates for the purpose of sealing.
  • the object underlying the present invention is to propose a heat-insulating lining of industrial furnaces, which is less time-consuming and less expensive than the known linings.
  • the blocks are placed in the composite and this at least indirectly against each other and placed on each other, wherein in the area between the groove and the fire side of the furnace surface facing at least two narrow sides temperature-resistant fiber product is provided between the blocks, said the blocks are circumferentially positively anchored by means of a cast and hardened in the grooves, refractory mass.
  • the blocks are glued on two narrow sides with temperature-resistant fiber products and are placed in a row on each other and side by side, to adjust a block steel anchor with a tip on the top and on the bottom of the block in the circumferential groove of a Block are used, and that the blocks erected in sections with a low-viscosity refractory material are poured, which penetrates into the groove of each block, so that the blocks are circumferentially positively anchored to each other after curing of the mass.
  • the blocks are shaped as blocks of porous refractory material (eg refractory bricks), the length of one side of a square being 200mm to 400mm, the thickness being 110mm to 230mm.
  • the circumferential groove is inserted in each block in the rear half of the narrow sides.
  • temperature-resistant fiber products eg ceramic fiber paper based on aluminosilicate high-temperature wool
  • the temperature-resistant fiber products are advantageously glued to two narrow sides, so that by the contiguity of the blocks creates a circumferential expansion joint for each block. So no additional expansion joint must be installed, since the expansion of each block is compensated by the circumferential joint.
  • the front portion of a block between the groove and the outer surface is made slightly larger than the rear portion of the block between the groove and the back, facing the wall to be clad.
  • the steel anchors are advantageously formed of flat iron, the flat iron slotted and punched in the front and have a hole in the rear of the attachment of the steel anchors to the wall.
  • the front section of a steel anchor is bent upwards or downwards so that one tip points upwards and one downwards.
  • the down-facing tip is pushed into the groove of a raised block and holds this block against the wall.
  • each block is secured in this manner by a steel anchor.
  • the upward-pointing tip of a steel anchor causes the attachment of the upper block constructed thereon.
  • the blocks are assembled in combination and, unlike the prior art, are not grouted with mortar.
  • the hole in the rear area is used to attach the steel anchors to the wall.
  • a round iron is inserted and slightly squeezed in the middle, so it does not pass through the hole of the Flat iron falls.
  • This arranged on the steel support member round steel is approximately perpendicular to the plane of the flat iron, with a tip of the round steel facing up and a tip of the round steel down. If such a steel anchor held by its rear hole on the wall, the downward-pointing tip of the round steel is pressed into the groove of a block erected and keeps this block on the wall. The upward-pointing tip of the round steel causes the attachment of the upper block constructed thereon.
  • each block is held at its upper and lower sides by two steel anchors each, the tips of which penetrate into the corresponding groove of the block. This causes each block to be anchored at four points.
  • this wall is back-poured with a low-viscosity refractory material, such as concrete.
  • This mass passes behind the blocks, into the gap between the blocks and into the groove of each block and hardens there. Then each block is anchored all around. It is not necessary to install a console. Due to the faster installation, the desired cost savings are given.
  • the refractory mass creates a circumferential positive anchoring of each block.
  • Fig. 1 For the inventive heat-insulating lining of industrial furnaces porous refractory blocks 1 are used, the view of the back or perspective view in Fig. 1 respectively.
  • Fig. 2 is shown.
  • Block 1 is cuboid and has in the rear half of its narrow side a circumferential groove 2.
  • temperature-resistant fiber products 4 are glued between the groove 2 and the outer surface.
  • the front portion 3 of the cuboid of the block 1 is designed slightly larger than a rear portion 5 of this block 1, block 1 has an upper side 1.1, a right side 1.2, a bottom 1.3 and a left side 1.4.
  • FIG. 3 To produce in the cutout heat-insulating lining, several blocks 1, the in Fig. 1 and Fig. 2 possess presented forms, juxtaposed. Each block 1 is shaped the same. It is not necessary to additionally cut or process the blocks in shape.
  • Fig. 4 is the cross section AA according to Fig. 3 shown. Both figures will now be described in detail.
  • Each block 1 has the circumferential groove 2 and is covered with the temperature-resistant fiber products 4 on two narrow sides. Since each block 1 on two sides with the temperature-resistant fiber products 4 (according to Fig. 2 at the top side 1.1 and at the right side 1.2), after the building of the blocks in the composite, a circumferential expansion joint for each block occurs due to the juxtaposition of the fiber products 4.
  • the according to Fig. 2 to the left-facing front portion 3 of the block 1 forms according to Fig. 3 the outer surface, so that each block 1 according to Fig. 3 right and above with the temperature-resistant fiber products 4 described is provided.
  • Fig. 4 is the section AA according to Fig. 3 shown. It can be seen steel anchor 6, which hold the blocks 1 on the wall of an industrial furnace.
  • the steel anchors 6 are each arranged on the upper side 1.1 and a lower side 1.3 of the block 1 in the groove 2.
  • the wall of the industrial furnace has the metal wall 7 and insulating plates 13. Hooks 8 are fixed to the metal wall 7 in a conventional manner and penetrate the insulating plates 13. At the outer end of the hook 8 is bent upward to receive a hole 11 of the steel anchor 6.
  • the steel anchor 6 is formed from a flat iron, the slotted and punched front portion is bent in each case to a tip 9 upwards or to a top 10 down.
  • Fig. 5 shows the perspective view of such a steel anchor 6.
  • the tip 10 penetrates according Fig. 4 down into the groove 2 of the block 1 a.
  • the tip 9 engages in the groove 2 of the upper block 1.
  • Each steel anchor 6 holds in this way two blocks 1 on the wall 7. In the rear region of the steel anchor 6 is a hole 11, in which the hook 8 engages.
  • Fig. 6 shows the perspective view of a steel anchor 14 can be used as an alternative to the steel anchor 6 just described.
  • the use of such a steel anchor 14 corresponds to the just described manipulations in the description of Fig. 3 and Fig. 4 .
  • the in Fig. 6 illustrated steel anchor 14 has a hole 15 in its rear region and the hole 16 in its front region.
  • this front hole 16 is a round steel 17 which has been inserted into this hole 16 and is easily crushed during manufacture, so that it does not fall out of the hole 16. This results in the bead 20.
  • the down from the steel anchor 14 protruding tip 19 of the round bar 17 engages when setting up the blocks 1 on the top 1.1 in the groove 2 of a block 1 a.
  • the upper tip 18 of the round bar 17 engages on the bottom 1.3 in the groove 2 of the upper block 1 a.
  • Each steel anchor 14 holds in this way two blocks 1 on the wall 7, analogous to the representation of the steel anchor 6 according to Fig. 3 and Fig. 4 ,
  • FIG. 3 Several blocks 1 are now set up in the network, as in Fig. 3 is shown. Each block 1 is held with two steel anchors 6 at its top 1.1 and two steel anchors 6 at its bottom 1.3. Each steel anchor 6 engages in the groove 2 of each block 1 in the manner described and illustrated.
  • this wall section is back-poured with a thin liquid refractory mass 12.
  • This low-viscosity refractory mass 12 which is preferably concrete, penetrates from behind into the circumferential groove 2 of the blocks 1. In the front region 3, the further flow of the mass 12 is prevented by the fiber products 4. Since each block 1 is slightly larger in its front region 3 than in its rear region 5, the inflow of the mass 12 into the groove 2 is ensured in a simple manner.
  • Each block 1 is anchored around the surface of the thin liquid refractory mass 12 after curing. The heat-insulating lining is stabilized and it is no longer necessary to additionally install a console or similar.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The lining has a steel anchor (6) holding refractory blocks (1) at a metallic wall, and a circumferential groove (2) formed in narrow sides of the refractory blocks. The steel anchors with tips (9, 10) are engaged in the groove of the refractory blocks. The refractory blocks are rotatably anchored by hardened fire-proof masses in a form-fit manner. A front region of the blocks between the groove and the outer surface is larger than a rear region of the blocks, where the rear region comprises the wall to be lined. An independent claim is also included for a method for manufacturing a heat-insulating lining for an industrial furnace.

Description

Die Erfindung betrifft eine wärmedämmende Auskleidung für Wände von Industrieöfen mit feuerfesten Blöcken (z.B. Feuerleichtsteine) und Stahlankern, die die Blöcke an der Metallwand halten, wobei in den Schmalseiten eines jeden Blockes eine umlaufende Nut eingeformt ist und zumindest ein Stahlanker mit einer Spitze in die Nut eines Blockes eingreift.The invention relates to a heat-insulating lining for walls of industrial furnaces with refractory blocks (eg refractory bricks) and steel anchors holding the blocks on the metal wall, wherein in the narrow sides of each block a circumferential groove is formed and at least one steel anchor with a point in the groove of a block.

Die Erfindung bezieht sich auch auf ein Verfahren zur Herstellung einer wärmedämmenden Auskleidung für Wände von Industrieöfen mit feuerfesten Blöcken, in deren Schmalseiten jeweils eine umlaufende Nut eingeformt ist, wobei die Blöcke über Stahlanker justiert werden.The invention also relates to a method for producing a heat-insulating lining for walls of industrial furnaces with refractory blocks, in whose narrow sides in each case a circumferential groove is formed, wherein the blocks are adjusted via steel anchors.

Es sind wärmedämmende Auskleidungen von Industrieöfen bekannt, wobei poröse feuerfeste Steine vermauert werden, die in bestimmten Abständen mit speziellen Stahlankern an einer Metallwand gehalten werden. Zur Sicherung des Mauerwerks und zur Beherrschung der thermischen Dehnung ist es notwendig, dass metallische Konsolen aus hitzefestem Stahl angeordnet werden, die die Steine in bestimmten Abständen unterstützen. Die Stahlanker gemäß des Standes der Technik halten nur etwa jeden vierten Stein in einer Reihe und nur jeweils etwa jede vierte Reihe der gemauerten Steine. Die Steine haben etwa die Größe von Backsteinen und werden auf übliche Weise mit Mörtel verfugt. Derartige bekannte wärmedämmende Auskleidungen werden in dem Buch " Feuerfestbau Werkstoffe - Konstruktion - Ausführung" der Deutschen Gesellschaft Feuerfest- und Schornsteinbau e.V., Vulkan-Verlag Essen, Kapitel 3.4 "Konstruieren mit geformten wärmedämmenden Werkstoffen" beschrieben.There are known heat-insulating linings of industrial furnaces, wherein porous refractory bricks are walled, which are held at intervals with special steel anchors on a metal wall. In order to secure the masonry and to control the thermal expansion, it is necessary that metallic brackets are made of heat-resistant steel, which support the stones at certain intervals. The prior art steel anchors only hold about every fourth stone in a row and only about every fourth row of masonry stones. The stones are about the size of bricks and are grouted in the usual way with mortar. Such known heat-insulating linings are described in the book " Refractory Materials - Construction - Execution "of the German society Feuerfest- and chimney construction eV, Vulkan-Verlag Essen, chapter 3.4 "Designing with molded thermal insulating materials" described.

Der Nachteil derartiger bekannter Verfahren besteht darin, dass die Verankerung der Steine nur punktuell erfolgt, dass ein hoher Montageaufwand zur Herstellung des Mauerwerks erforderlich ist und dass teure metallische Konsolen aus hitzebeständigen Edelstählen eingebaut werden müssen. Zahlreiche Steine müssen geschnitten werden, um das Mauerwerk fertig zu stellen, wodurch ein hoher Zeitaufwand entsteht. Ferner ist es notwendig, dass Dehnfugen eingebaut werden.The disadvantage of such known methods is that the anchoring of the stones takes place only at certain points, that a high assembly cost for the production of the masonry is required and that expensive metallic consoles must be installed from heat-resistant stainless steels. Numerous stones have to be cut to complete the masonry, resulting in a high expenditure of time. Furthermore, it is necessary that expansion joints are installed.

Aus der DE 203 07 026 U1 ist eine wärmedämmende Auskleidung für Industrieöfen mit feuerfesten Isolierkörpern bekannt. Der einzelne Isolierkörper wird über Stahlanker an der Metallwand gehalten, wobei in den Schmalseiten eines jeden Isolierkörpers eine umlaufende Nut eingeformt ist, in die der Stahlanker eingreift. Die Isolierkörper sind derart mit Abstand zueinander angeordnet, dass eine Fuge gebildet ist, durch die eine feuerfeste Isoliermasse sowohl zwischen die Isolierkörper also auch zwischen die Isolierkörper und die auf der Metallwand angeordneten Isolier-Zwischenschicht einbringbar ist.From the DE 203 07 026 U1 is a thermally insulating lining for industrial furnaces with refractory insulating known. The single insulator is held by steel anchors on the metal wall, wherein in the narrow sides of each insulating a circumferential groove is formed, engages in the steel anchor. The insulating bodies are arranged at a distance from one another such that a joint is formed, through which a refractory insulating compound can be introduced both between the insulating body and between the insulating body and the insulating intermediate layer arranged on the metal wall.

Aus der DE 40 07 662 C1 (D3) ist ein Schutzwandaufbau für einen Kessel bekannt, der aus mehreren Steinplatten gebildet ist. Zum Schutz der Kesselwand vor Rauchgasen ist zwischen den Steinplatten eine Vergussmasse verpresst.From the DE 40 07 662 C1 (D3) a protective wall structure is known for a boiler formed of a plurality of stone slabs. To protect the boiler wall from flue gases, a potting compound is pressed between the stone slabs.

Aus der EP 1 124 094 A1 ist ein keramischer Schutzwandaufbau für einen Kessel bekannt, der aus mehreren Platten gebildet ist. Zum Schutz der Kesselwand vor Rauchgasen ist zwischen den Platten zwecks Abdichtung wahlweise eine verformbare Ausgleichsschicht angeordnet.From the EP 1 124 094 A1 For example, a ceramic bulkhead structure is known for a boiler formed of a plurality of plates. To protect the boiler wall from flue gases, a deformable leveling layer is optionally arranged between the plates for the purpose of sealing.

Die der vorliegenden Erfindung zugrunde liegende Aufgabe besteht darin, eine wärmedämmende Auskleidung von Industrieöfen vorzuschlagen, die weniger zeitaufwändig und kostengünstiger als die bekannten Auskleidungen ist.The object underlying the present invention is to propose a heat-insulating lining of industrial furnaces, which is less time-consuming and less expensive than the known linings.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Blöcke im Verbund aufgestellt und hierzu zumindest mittelbar gegeneinander und aufeinander gestellt sind, wobei im Bereich zwischen der Nut und der einer Feuerseite des Ofens zugewandten Fläche an zumindest zwei Schmalseiten temperaturbeständiges Fasererzeugnis zwischen den Blöcken vorgesehen ist, wobei die Blöcke umlaufend formschlüssig mittels einer in den Nuten eingegossenen und ausgehärteten, feuerfesten Masse verankert sind.This object is achieved in that the blocks are placed in the composite and this at least indirectly against each other and placed on each other, wherein in the area between the groove and the fire side of the furnace surface facing at least two narrow sides temperature-resistant fiber product is provided between the blocks, said the blocks are circumferentially positively anchored by means of a cast and hardened in the grooves, refractory mass.

Diese Aufgabe wird zudem dadurch gelöst, dass die Blöcke an zwei Schmalseiten mit temperaturbeständigen Fasererzeugnissen beklebt werden und im Verbund aufeinander und nebeneinander aufgestellt werden, wobei zum Justieren eines Blockes Stahlanker mit einer Spitze auf der Oberseite und auf der Unterseite des Blockes in die umlaufende Nut eines Blockes eingesetzt werden, und dass die aufgestellten Blöcke abschnittsweise mit einer dünnflüssigen feuerfesten Masse hintergossen werden, die in die Nut eines jeden Blockes eindringt, so dass die Blöcke nach dem Aushärten der Masse umlaufend formschlüssig untereinander verankert sind.This object is also achieved in that the blocks are glued on two narrow sides with temperature-resistant fiber products and are placed in a row on each other and side by side, to adjust a block steel anchor with a tip on the top and on the bottom of the block in the circumferential groove of a Block are used, and that the blocks erected in sections with a low-viscosity refractory material are poured, which penetrates into the groove of each block, so that the blocks are circumferentially positively anchored to each other after curing of the mass.

Besonders bevorzugte Ausgestaltungen der Erfindung werden in den Unteransprüchen beschrieben.Particularly preferred embodiments of the invention are described in the subclaims.

Vorzugsweise sind die Blöcke als Quader aus porösem feuerfestem Material (z.B. Feuerleichtsteine) geformt, wobei die Länge einer Seite eines Quaders 200mm bis 400mm, die Stärke 110mm bis 230mm beträgt. Die umlaufende Nut wird in jedem Block in der hinteren Hälfte der Schmalseiten eingebracht. Im vorderen Bereich zwischen Nut und Außenfläche eines Blockes werden vorzugsweise temperaturbeständige Fasererzeugnisse (z.B. keramisches Faserpapier auf Basis alumosilikatischer Hochtemperatur-Wolle) aufgebracht, die bei jedem Block als Dehnfuge wirken. Die temperaturbeständigen Fasererzeugnisse werden vorteilhafterweise an zwei Schmalseiten aufgeklebt, so dass durch das Aneinandergrenzen der Blöcke eine umlaufende Dehnfuge für jeden Block entsteht. Es muss also keine zusätzliche Dehnfuge eingebaut werden, da die Dehnung jedes einzelnen Blockes durch die umlaufende Fuge kompensiert wird.Preferably, the blocks are shaped as blocks of porous refractory material (eg refractory bricks), the length of one side of a square being 200mm to 400mm, the thickness being 110mm to 230mm. The circumferential groove is inserted in each block in the rear half of the narrow sides. Be in the front area between the groove and outer surface of a block preferably temperature-resistant fiber products (eg ceramic fiber paper based on aluminosilicate high-temperature wool) applied, which act as an expansion joint in each block. The temperature-resistant fiber products are advantageously glued to two narrow sides, so that by the contiguity of the blocks creates a circumferential expansion joint for each block. So no additional expansion joint must be installed, since the expansion of each block is compensated by the circumferential joint.

Vorzugsweise ist der vordere Bereich eines Blockes zwischen Nut und Außenfläche etwas größer ausgestaltet als der hintere Bereich des Blockes zwischen Nut und Rückseite, die zu der zu verkleidenden Wand weist.Preferably, the front portion of a block between the groove and the outer surface is made slightly larger than the rear portion of the block between the groove and the back, facing the wall to be clad.

Die Stahlanker sind vorteilhafterweise aus Flacheisen geformt, wobei die Flacheisen im vorderen Bereich geschlitzt und ausgestanzt wurden und im hinteren Bereich ein Loch zur Befestigung der Stahlanker an der Wand aufweisen. Der vordere Bereich eines Stahlankers wird nach oben bzw. unten aufgebogen, so dass eine Spitze nach oben und eine nach unten weist. Bei der Befestigung eines Stahlankers an der Wand wird die nach unten weisende Spitze in die Nut eines aufgestellten Blockes gedrückt und hält diesen Block an der Wand. Vorzugsweise wird jeder Block auf diese Weise durch einen Stahlanker befestigt. Die nach oben weisende Spitze eines Stahlankers bewirkt die Befestigung des darauf aufgebauten oberen Blockes. Die Blöcke werden im Verbund montiert und im Gegensatz zum Stand der Technik nicht mit Mörtel verfugt.The steel anchors are advantageously formed of flat iron, the flat iron slotted and punched in the front and have a hole in the rear of the attachment of the steel anchors to the wall. The front section of a steel anchor is bent upwards or downwards so that one tip points upwards and one downwards. When attaching a steel anchor to the wall, the down-facing tip is pushed into the groove of a raised block and holds this block against the wall. Preferably, each block is secured in this manner by a steel anchor. The upward-pointing tip of a steel anchor causes the attachment of the upper block constructed thereon. The blocks are assembled in combination and, unlike the prior art, are not grouted with mortar.

Gemäß einer anderen Ausführungsform weisen die Stahlanker ein Flacheisen mit einem Loch im vorderen und hinteren Bereich auf. Das Loch im hinteren Bereich dient zur Befestigung der Stahlanker an der Wand. In das Loch im vorderen Bereich des Flacheisens wird ein Rundeisen gesteckt und etwa mittig leicht gequetscht, damit es nicht durch das Loch des Flacheisens fällt. Dieser an dem Stahlhalteteil angeordnete Rundstahl steht ungefähr senkrecht auf der Ebene des Flacheisens, wobei eine Spitze des Rundstahls nach oben und eine Spitze des Rundstahls nach unten weist. Wird ein derartiger Stahlanker mittels seines hinteren Loches an der Wand gehalten, so wird die nach unten weisende Spitze des Rundstahls in die Nut eines aufgestellten Blockes gedrückt und hält diesen Block an der Wand. Die nach oben weisende Spitze des Rundstahls bewirkt die Befestigung des darauf aufgebauten oberen Blockes.According to another embodiment, the steel anchors on a flat iron with a hole in the front and rear area. The hole in the rear area is used to attach the steel anchors to the wall. In the hole in the front area of the flat iron, a round iron is inserted and slightly squeezed in the middle, so it does not pass through the hole of the Flat iron falls. This arranged on the steel support member round steel is approximately perpendicular to the plane of the flat iron, with a tip of the round steel facing up and a tip of the round steel down. If such a steel anchor held by its rear hole on the wall, the downward-pointing tip of the round steel is pressed into the groove of a block erected and keeps this block on the wall. The upward-pointing tip of the round steel causes the attachment of the upper block constructed thereon.

Vorzugsweise wird jeder Block an seiner oberen und an seiner unteren Seite von jeweils zwei Stahlankern gehalten, deren Spitzen in die entsprechende Nut des Blockes eindringen. Hierdurch wird bewirkt, dass jeder Block an vier Punkten verankert ist.Preferably, each block is held at its upper and lower sides by two steel anchors each, the tips of which penetrate into the corresponding groove of the block. This causes each block to be anchored at four points.

Nachdem etwa drei bis vier Reihen von Blöcken auf diese Weise aufeinander gestellt wurden, wird diese Wand mit einer dünnflüssigen feuerfesten Masse, beispielsweise Beton, hintergossen. Diese Masse läuft hinter die Blöcke, in den Spalt zwischen den Blöcken und in die Nut jedes Blockes und härtet dort aus. Anschließend ist jeder Block ringsum verankert. Es ist nicht notwendig eine Konsole einzubauen. Durch die schnellere Montage ist die gewünschte Kostenersparnis gegeben. Durch die feuerfeste Masse entsteht eine umlaufende formschlüssige Verankerung jedes einzelnen Blockes.After about three to four rows of blocks have been placed on each other in this way, this wall is back-poured with a low-viscosity refractory material, such as concrete. This mass passes behind the blocks, into the gap between the blocks and into the groove of each block and hardens there. Then each block is anchored all around. It is not necessary to install a console. Due to the faster installation, the desired cost savings are given. The refractory mass creates a circumferential positive anchoring of each block.

Die Erfindung wird nun anhand der beigefügten Zeichnungen näher erläutert.The invention will now be explained in more detail with reference to the accompanying drawings.

Es zeigen:

Fig. 1
die Draufsicht auf die Rückseite eines Blockes 1,
Fig. 2
die perspektivische Ansicht eines Blockes 1.
Fig. 3
einen Ausschnitt einer Auskleidung mit Blöcken 1,
Fig. 4
den Querschnitt A-A der Auskleidung gemäß Fig. 3,
Fig. 5
die perspektivische Ansicht eines Stahlankers 6 und
Fig. 6
die perspektivische Ansicht eines Stahlankers 14.
Show it:
Fig. 1
the top view of the back of a block 1,
Fig. 2
the perspective view of a block. 1
Fig. 3
a section of a lining with blocks 1,
Fig. 4
the cross section AA of the lining according to Fig. 3 .
Fig. 5
the perspective view of a steel anchor 6 and
Fig. 6
the perspective view of a steel anchor 14th

Zur erfindungsgemäßen wärmedämmenden Auskleidung von Industrieöfen werden poröse feuerfeste Blöcke 1 verwendet, deren Ansicht der Rückseite bzw. perspektivische Ansicht in Fig. 1 bzw. Fig. 2 dargestellt ist. Block 1 ist quaderförmig ausgestaltet und weist in der hinteren Hälfte seiner Schmalseite eine umlaufende Nut 2 auf. In einem vorderen Bereich 3 des Blockes 1 sind zwischen Nut 2 und Außenfläche temperaturbeständige Fasererzeugnisse 4 aufgeklebt. Wie aus Fig. 1 und Fig. 2 erkenntlich, ist der vordere Bereich 3 des Quaders des Blockes 1 etwas größer ausgestaltet als ein hinterer Bereich 5 dieses Blockes 1, Block 1 weist eine Oberseite 1.1, eine rechte Seite 1.2, eine Unterseite 1.3 und eine linke Seite 1.4 auf.For the inventive heat-insulating lining of industrial furnaces porous refractory blocks 1 are used, the view of the back or perspective view in Fig. 1 respectively. Fig. 2 is shown. Block 1 is cuboid and has in the rear half of its narrow side a circumferential groove 2. In a front region 3 of the block 1, temperature-resistant fiber products 4 are glued between the groove 2 and the outer surface. How out Fig. 1 and Fig. 2 recognizable, the front portion 3 of the cuboid of the block 1 is designed slightly larger than a rear portion 5 of this block 1, block 1 has an upper side 1.1, a right side 1.2, a bottom 1.3 and a left side 1.4.

Um die in Fig. 3 im Ausschnitt dargestellte wärmedämmende Auskleidung herzustellen, werden mehrere Blöcke 1, die die in Fig. 1 und Fig. 2 dargestellten Formen besitzen, nebeneinander gestellt. Jeder Block 1 ist gleich geformt. Es ist nicht notwendig, zusätzlich die Blöcke in Form zu schneiden oder zu bearbeiten. In Fig. 4 ist der Querschnitt A-A gemäß Fig. 3 dargestellt. Beide Figuren werden nunmehr im Einzelnen beschrieben.To the in Fig. 3 To produce in the cutout heat-insulating lining, several blocks 1, the in Fig. 1 and Fig. 2 possess presented forms, juxtaposed. Each block 1 is shaped the same. It is not necessary to additionally cut or process the blocks in shape. In Fig. 4 is the cross section AA according to Fig. 3 shown. Both figures will now be described in detail.

Jeder Block 1 weist die umlaufende Nut 2 auf und ist mit den temperaturbeständigen Fasererzeugnissen 4 an zwei Schmalseiten beklebt. Da jeder Block 1 an zwei Seiten mit den temperaturbeständigen Fasererzeugnissen 4 (gemäß Fig. 2 an der Oberseite 1.1 und an der rechten Seite 1.2) versehen ist, tritt nach dem Aufbau der Blöcke im Verbund eine umlaufende Dehnfuge für jeden Block durch das Aneinandergrenzen der Fasererzeugnisse 4 auf. Der gemäß Fig. 2 nach links weisende vordere Bereich 3 des Blockes 1 bildet gemäß Fig. 3 die Außenfläche, so dass jeder Block 1 gemäß Fig. 3 rechts und oben mit den beschriebenen temperaturbeständigen Fasererzeugnissen 4 versehen ist.Each block 1 has the circumferential groove 2 and is covered with the temperature-resistant fiber products 4 on two narrow sides. Since each block 1 on two sides with the temperature-resistant fiber products 4 (according to Fig. 2 at the top side 1.1 and at the right side 1.2), after the building of the blocks in the composite, a circumferential expansion joint for each block occurs due to the juxtaposition of the fiber products 4. The according to Fig. 2 to the left-facing front portion 3 of the block 1 forms according to Fig. 3 the outer surface, so that each block 1 according to Fig. 3 right and above with the temperature-resistant fiber products 4 described is provided.

In Fig. 4 ist der Schnitt A-A gemäß Fig. 3 dargestellt. Man erkennt Stahlanker 6, die die Blöcke 1 an der Wand eines Industrieofens halten. Die Stahlanker 6 sind jeweils an der Oberseite 1.1 und einer Unterseite 1.3 des Blockes 1 in der Nut 2 angeordnet. Die Wand des Industrieofens weist die Metallwand 7 und Isolierplatten 13 auf. Haken 8 sind an der Metallwand 7 auf an sich übliche Weise befestigt und durchdringen die Isolierplatten 13. Am äußeren Ende ist der Haken 8 nach oben gebogen, um ein Loch 11 des Stahlankers 6 aufzunehmen. Der Stahlanker 6 ist aus einem Flacheisen geformt, dessen geschlitzter und ausgestanzter vorderer Bereich jeweils zu einer Spitze 9 nach oben bzw. zu einer Spitze 10 nach unten aufgebogen ist. Fig. 5 zeigt die perspektivische Ansicht eines derartigen Stahlankers 6. Die Spitze 10 dringt gemäß Fig. 4 nach unten in die Nut 2 des Blockes 1 ein. Die Spitze 9 greift in die Nut 2 des oberen Blockes 1 ein. Jeder Stahlanker 6 hält auf diese Weise zwei Blöcke 1 an der Wand 7. Im hinteren Bereich des Stahlankers 6 befindet sich ein Loch 11, in das der Haken 8 eingreift.In Fig. 4 is the section AA according to Fig. 3 shown. It can be seen steel anchor 6, which hold the blocks 1 on the wall of an industrial furnace. The steel anchors 6 are each arranged on the upper side 1.1 and a lower side 1.3 of the block 1 in the groove 2. The wall of the industrial furnace has the metal wall 7 and insulating plates 13. Hooks 8 are fixed to the metal wall 7 in a conventional manner and penetrate the insulating plates 13. At the outer end of the hook 8 is bent upward to receive a hole 11 of the steel anchor 6. The steel anchor 6 is formed from a flat iron, the slotted and punched front portion is bent in each case to a tip 9 upwards or to a top 10 down. Fig. 5 shows the perspective view of such a steel anchor 6. The tip 10 penetrates according Fig. 4 down into the groove 2 of the block 1 a. The tip 9 engages in the groove 2 of the upper block 1. Each steel anchor 6 holds in this way two blocks 1 on the wall 7. In the rear region of the steel anchor 6 is a hole 11, in which the hook 8 engages.

Fig. 6 zeigt die perspektivische Ansicht eines Stahlankers 14 der alternativ zu dem eben beschriebenen Stahlanker 6 verwendet werden kann. Die Verwendung eines derartigen Stahlankers 14 entspricht den eben beschriebenen Handhabungen bei der Beschreibung von Fig. 3 und Fig. 4. Der in Fig. 6 dargestellte Stahlanker 14 weist in seinem hinteren Bereich ein Loch 15 und in seinem vorderen Bereich das Loch 16 auf. In diesem vorderen Loch 16 befindet sich ein Rundstahl 17, der in dieses Loch 16 eingesteckt wurde und bei der Herstellung leicht gequetscht wird, damit er nicht aus dem Loch 16 fällt. Dabei entsteht der Wulst 20. Die nach unten aus dem Stahlanker 14 herausragende Spitze 19 des Rundstahls 17 greift beim Aufstellen der Blöcke 1 auf der Oberseite 1.1 in die Nut 2 eines Blockes 1 ein. Die obere Spitze 18 des Rundstahls 17 greift auf der Unterseite 1.3 in die Nut 2 des oberen Blockes 1 ein. Jeder Stahlanker 14 hält auf diese Weise zwei Blöcke 1 an der Wand 7, analog zu der Darstellung der Stahlanker 6 gemäß Fig. 3 und Fig. 4. Fig. 6 shows the perspective view of a steel anchor 14 can be used as an alternative to the steel anchor 6 just described. The use of such a steel anchor 14 corresponds to the just described manipulations in the description of Fig. 3 and Fig. 4 , The in Fig. 6 illustrated steel anchor 14 has a hole 15 in its rear region and the hole 16 in its front region. In this front hole 16 is a round steel 17 which has been inserted into this hole 16 and is easily crushed during manufacture, so that it does not fall out of the hole 16. This results in the bead 20. The down from the steel anchor 14 protruding tip 19 of the round bar 17 engages when setting up the blocks 1 on the top 1.1 in the groove 2 of a block 1 a. The upper tip 18 of the round bar 17 engages on the bottom 1.3 in the groove 2 of the upper block 1 a. Each steel anchor 14 holds in this way two blocks 1 on the wall 7, analogous to the representation of the steel anchor 6 according to Fig. 3 and Fig. 4 ,

Mehrere Blöcke 1 werden nunmehr im Verbund aufgestellt, wie es in Fig. 3 dargestellt ist. Jeder Block 1 ist mit zwei Stahlankern 6 an seiner Oberseite 1.1 und mit zwei Stahlankern 6 an seiner Unterseite 1,3 gehalten. Jeder Stahlanker 6 greift in die Nut 2 jedes Blockes 1 auf die beschriebene und dargestellte Weise ein.Several blocks 1 are now set up in the network, as in Fig. 3 is shown. Each block 1 is held with two steel anchors 6 at its top 1.1 and two steel anchors 6 at its bottom 1.3. Each steel anchor 6 engages in the groove 2 of each block 1 in the manner described and illustrated.

Sind nunmehr mehrere Blöcke 1 auf diese Weise aufgebaut worden, vorzugsweise etwa drei bis vier Reihen, so wird dieser Wandabschnitt mit einer dünnflüssigen feuerfesten Masse 12 hintergossen. Diese dünnflüssige feuerfeste Masse 12, die vorzugsweise Beton ist, dringt von hinten bis in die umlaufende Nut 2 der Blöcke 1 ein. Im vorderen Bereich 3 wird das Weiterfließen der Masse 12 durch die Fasererzeugnisse 4 gehindert. Da jeder Block 1 in seinem vorderen Bereich 3 geringfügig größer ist als in seinem hinteren Bereich 5 ist das Einfließen der Masse 12 in die Nut 2 auf einfache Weise gewährleistet. Jeder Block 1 ist nach dem Aushärten der dünnflüssigen feuerfesten Masse 12 ringsum formschlüssig verankert. Die wärmedämmende Auskleidung ist stabilisiert und es ist nicht mehr notwendig zusätzlich eine Konsole oder ähnliches einzubauen.Now, if several blocks 1 have been constructed in this way, preferably about three to four rows, this wall section is back-poured with a thin liquid refractory mass 12. This low-viscosity refractory mass 12, which is preferably concrete, penetrates from behind into the circumferential groove 2 of the blocks 1. In the front region 3, the further flow of the mass 12 is prevented by the fiber products 4. Since each block 1 is slightly larger in its front region 3 than in its rear region 5, the inflow of the mass 12 into the groove 2 is ensured in a simple manner. Each block 1 is anchored around the surface of the thin liquid refractory mass 12 after curing. The heat-insulating lining is stabilized and it is no longer necessary to additionally install a console or similar.

Claims (7)

  1. A heat-insulating lining for the walls (7) of industrial furnaces with refractory blocks (1) and steel anchors (6) retaining the blocks (1) at the metal wall (7), wherein a circumferential groove (2) is formed into the narrow sides of each block (1) and at least one steel anchor (6; 14) engages into the groove (2) of a block (1) with a tip (9, 10; 18, 19), characterized in that
    the blocks (1) are erected in a masonry-type manner and are placed against and on top of one another at least indirectly for this purpose, wherein a temperature-resistant fiber product (4) is provided between the blocks (1) on at least two narrow sides in the region (3) between the groove (2) and the surface facing a flame side of the furnace, wherein the blocks (1) are anchored circumferentially in a form-fit manner by means of a fireproof mass poured into and hardened in the grooves (2).
  2. The heat-insulating lining according to claim 1 or 2,
    characterized in that
    the circumferential groove (2) is formed into the region of the narrow sides of each rectangular-shaped block (1) facing the metal wall of the furnace.
  3. The heat-insulating lining according to at least one of the preceding claims,
    characterized in that
    the region (3) of a block (1) between the groove (2) and the surface facing the flame side of the furnace is slightly larger than the region (5) of the block (1) facing toward the wall (7) to be lined.
  4. The heat-insulating lining according to at least one of the preceding claims,
    characterized in that
    the steel anchor (6) is formed from a flat iron whose slit and punched-out front region is bent upwardly and downwardly forming a tip (9; 10) in both cases.
  5. The heat-insulating lining according to any one of claims 1 to 4,
    characterized in that
    the steel anchor (14) has a flat iron and a round steel (17), wherein the round steel (17) is arranged in a hole (16) in the front region of the steel anchor (14) and a tip (18) of the round steel (17) points upwardly and a tip (19) points downwardly.
  6. The heat-insulating lining according to claim 1,
    characterized in that
    on the respective block (1) two steel anchors (6, 14) each are arranged in the groove (2) only on its upper side (1.1) and only on its lower side (1.3).
  7. A method for manufacturing a heat-insulating lining for the walls (7) of industrial furnaces with refractory blocks (1) having a circumferential groove (2) formed into their respective narrow sides and steel anchors according to at least one of the preceding claims,
    characterized in that
    temperature-resistant fiber products (4) are adhesively attached to said blocks (1) and said blocks are erected in a masonry-type manner on top of and next to one another, wherein for adjusting a block (1) steel anchors (6; 14) are inserted into the groove (2) of a block (1) with a tip (9, 10; 18, 19) on the upper side (1.1) and on the lower side (1.3) of the block (1), and that a low-viscosity fireproof mass (12) is poured behind the erected blocks (1) section by section, said mass entering the groove (2) of each block (1) such that the blocks (1) are anchored to one another circumferentially in a form-fit manner after the mass has hardened.
EP09013944.5A 2008-11-19 2009-11-06 Thermal insulation cover for industrial furnaces Active EP2189743B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810057920 DE102008057920A1 (en) 2008-11-19 2008-11-19 Heat-insulating lining of industrial furnaces

Publications (2)

Publication Number Publication Date
EP2189743A1 EP2189743A1 (en) 2010-05-26
EP2189743B1 true EP2189743B1 (en) 2013-12-18

Family

ID=41567194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013944.5A Active EP2189743B1 (en) 2008-11-19 2009-11-06 Thermal insulation cover for industrial furnaces

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EP (1) EP2189743B1 (en)
DE (1) DE102008057920A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103748B4 (en) 2012-04-27 2018-11-29 Jünger+Gräter GmbH Wall element of a refractory inner layer and protective lining for an industrial furnace wall
DE102016119924A1 (en) 2016-10-19 2018-04-19 Jünger+Gräter GmbH Industrial furnace wall with lining
DE102019124600A1 (en) * 2019-09-12 2021-03-18 Jünger+Gräter GmbH Anchoring system
CN111721125B (en) * 2020-07-01 2024-09-13 中国联合工程有限公司 Industrial furnace and working method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279644A (en) * 1940-05-18 1942-04-14 Thermo Fire Brick Company Furnace wall tie
DE1471114A1 (en) * 1964-06-30 1969-04-17 Didier Werke Ag Metal-coated refractory basic stone
GB1386407A (en) * 1971-03-22 1975-03-05 Causeway Steel Products Ltd Anchor for refractory lining
AT392692B (en) * 1980-07-29 1991-05-27 Detrick M H Co FIRE-RESISTANT LINING STONE FOR INDUSTRIAL OVENS
DE4007662C1 (en) * 1990-03-10 1991-05-23 Juenger + Graeter Gmbh & Co. Feuerfestbau, 6830 Schwetzingen, De
DE10005426C2 (en) * 2000-02-08 2001-11-15 Didier Werke Ag Refractory ceramic plate and associated wall structure for an incinerator
DE20016545U1 (en) * 2000-09-25 2000-12-21 Refratechnik Holding Gmbh & Co. Kg, 85737 Ismaning Refractory transition stones and anchoring elements for such transition stones
DE20307026U1 (en) * 2003-05-07 2003-07-03 Wolf GmbH Feuerfeste Produkte, 56182 Urbar Light refractory block covering internal walls and roofs of high temperature furnaces, is grooved around base near cool furnace wall and held by clips and anchors

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EP2189743A1 (en) 2010-05-26

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