EP2255141B1 - Single-piece steel anchor for anchoring unformed fireproof building materials - Google Patents

Single-piece steel anchor for anchoring unformed fireproof building materials Download PDF

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Publication number
EP2255141B1
EP2255141B1 EP09722582.5A EP09722582A EP2255141B1 EP 2255141 B1 EP2255141 B1 EP 2255141B1 EP 09722582 A EP09722582 A EP 09722582A EP 2255141 B1 EP2255141 B1 EP 2255141B1
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EP
European Patent Office
Prior art keywords
anchor
steel anchor
steel
industrial furnace
base
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EP09722582.5A
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German (de)
French (fr)
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EP2255141A1 (en
Inventor
Johannes Imle
Markus Horn
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Juenger and Graeter Feuerfestbau GmbH
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Juenger and Graeter Feuerfestbau GmbH
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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
    • F27D1/14—Supports for linings
    • 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
    • F27D1/10—Monolithic linings; Supports therefor
    • 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
    • F27D1/141—Anchors therefor

Definitions

  • the invention relates to a one-piece steel anchor for anchoring unformed refractory materials, especially in industrial furnaces.
  • anchors known for refractory materials There are many different types and forms of anchors known for refractory materials.
  • flat steel anchors which have two legs in the front region, which are bent apart in a Y-shape and thus form arms which secure the refractory lining.
  • flat steel anchors are known, the front portion is rotated relative to the base part, which is given by this rotation enhancement of the anchoring function of the flat steel anchor.
  • a reinforcing anchor made of round steel is known, which has a base part and arms which connect to the free leg ends of the base part. The securing of the lining is given by the arrangement of the arms.
  • An anchor for fixing an inner refractory layer of an industrial furnace wherein the anchor has an eyelet, via which it is indirectly connected to a further eyelet fixed to the furnace wall via a tether or a retaining wire.
  • the remaining part of the anchor in the refractory layer is solid.
  • Hook-shaped reinforcing anchors which serve in addition to other reinforcing components for securing a réellesprühenden lining.
  • the anchors are connected at the end to the surface to be connected, wherein the free end is bent as a hook.
  • the object underlying the present invention is to propose a steel anchor for anchoring, which holds the refractory lining, especially concrete, securely on the outer wall, even at high temperatures.
  • This object is achieved in that a steel anchor is proposed for anchoring, which has two interconnected legs in the front region, which are bent apart in the opposite direction and form an eyelet in which to harden the building materials to be anchored.
  • the front portion of the anchor serves to anchor the refractory lining.
  • This front part is designed as an eyelet, wherein the anchor is fastened with its base part on the outer wall.
  • the steel anchor is attached to the outer wall so that the eyelet opening is horizontal is arranged.
  • a slot is sawn in the front region of the flat steel anchor, the lateral limbs of which are then pressed to the side.
  • the closed end region is preferably at least as long as the base part of the flat steel is wide.
  • the two legs are preferably bent apart at an angle, so that forms a rhombic or rectangular eyelet opening. A roundish shape is also possible.
  • the open width of the eyelet is preferably at least as large as the base width of the anchor.
  • the free length of the eyelet is preferably at least twice the base width of the anchor.
  • the eyelet itself is preferably twice as long as it is wide.
  • the eyelet is rotated relative to the base part of the flat steel by at least 90 ° or by a multiple thereof.
  • This flat steel anchor is attached to the outer wall, wherein the eye opening is preferably perpendicular to the plane of the flat steel.
  • the round steel is bent in a U-shape and the free legs form the base, which are attached to the outer wall.
  • the front portion of such a round steel anchor is U-shaped and thus closed. The two legs of this U are bent apart to form the desired eyelet.
  • the front portion of the anchor and the formed eyelet are coated with organic material which melts, burns, softens, shrinks, shrinks, sublimates, evaporates or foams at the operating temperatures.
  • This coating forms an expansion gap at operating temperatures, which allows thermal changes of the armature and allows slight necessary mobility of the armature.
  • the front end of the armature is covered with a plastic cap. At operating temperatures, these caps melt, resulting in an expansion gap that reduces the distortion of the steel anchor.
  • Fig. 1 shows the one-piece steel anchors 1 and 2, which serve to anchor the refractory lining 3.
  • These steel anchors 1 and 2 are made of flat steel and fixed with its base on the wall 4. This wall 4 is lined with insulating material 5.
  • the steel anchors 1 and 2 project with their front portion through the insulating layer 5 therethrough.
  • This front Area of steel anchors 1 and 2 serves to anchor the refractory lining 3, which is made for example of concrete.
  • the flat steel anchor 1 has the same shape as the flat steel anchor 2.
  • Fig. 1 the flat steel anchor 1 with respect to the flat steel anchor 2 shown rotated by 90 °.
  • the front region of the two anchors 1 and 2 will be described in detail.
  • the front portion of the flat steel anchors 1 and 2 is rotated 90 ° relative to the base.
  • the two legs 7 and 8 are interconnected, namely both on the side of the base part and in the end portion 9 of the armature.
  • the legs 7 and 8 are bent apart and thus form an eyelet.
  • the plastic cap 10 is attached, which melts in operation.
  • the steel anchor 2 is attached to the wall 4 such that the plane of the flat steel anchor 2 is perpendicular to the plane of the flat steel anchor 1. It can be seen that the front region of this steel anchor 2 has the two legs 11 and 12, which form an eyelet. The two legs 11 and 12 are connected to each other via the end portion 13 which carries the cap 14. Analogous to the steel anchor 1, a slot was sawn in the front area of the flat steel. The two legs 11 and 12 of the flat steel anchor 2 are bent apart in the opposite direction and form a rhombic eye opening. Also in this flat steel anchor, the eye opening is perpendicular to the plane of the flat steel.
  • the flat steel anchor is fixed in the manner of the wall 4, as shown in the flat steel anchor 1.
  • the eyelet is horizontal, so that when introducing the refractory material 3 this easily enters the eyelet opening and hardens in this eyelet opening. This enhances the fuse function of the armature. It would also be possible the flat steel anchor 1 as shown in the flat steel anchor 2 to arrange.
  • Both armatures 1 and 2 are formed in one piece and the front area is rotated by 90 ° relative to the base part. This twisting is preferably carried out by at least 90 ° or by a multiple thereof.
  • the eyelet itself is twice as long as it is wide in this embodiment.
  • the free length of the eyelet is at least twice the base width of the anchor.
  • the open width of the eyelet is at least as large as the base width of the anchor.
  • Fig. 2 another embodiment is shown.
  • the one-piece steel anchors 15 and 16 are made of round steel, wherein the round bar is bent in a U-shape and its free legs form the base, which are fastened to the wall 4.
  • the front portion of the round steel anchors 15 and 16 is U-shaped and thus closed.
  • the two legs 17 and 18 of the round steel anchor 15 are bent apart and form an eyelet, which is penetrated by the refractory material 3 during filling and in which the material can harden.
  • the round steel anchor 16 is rotated relative to the round steel anchor 15 by 90 °, so that the two bent legs 19 and 20 of this round steel anchor 16 recognizably form an eyelet.
  • the leg 19 is upwardly bent and the leg 20 down, so that a rhombic eye opening was formed.
  • the end portion of this round steel anchor is U-shaped and covered with the cap 21. When round steel anchor 15, the cap 22 can be seen, which is mounted over the U-shaped front portion of the round steel anchor 15.

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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)

Description

Die Erfindung betrifft einen einstückigen Stahlanker zur Verankerung ungeformter feuerfester Baustoffe, insbesondere in Industrieöfen.The invention relates to a one-piece steel anchor for anchoring unformed refractory materials, especially in industrial furnaces.

Es ist bekannt, Industrieöfen mit feuerfestem Material auszukleiden. Der Unterschied zwischen der Temperatur im Ofeninneren (über 1000° Celsius) und der Temperatur des Außenbereichs (etwa 20° Celsius) ist sehr groß. Die Außenwand wird zunächst mit Isoliermaterial abgekleidet und vor diese Isolierschicht wird feuerfestes Material eingebaut. Um dieses ungeformte feuerfeste Material, beispielsweise Beton, in seiner Lage zu sichern, werden auf der Außenwand Anker angebracht, die durch die Isolierschicht ragen. Beim Einbau gelangt das feuerfeste Material in diesen vorderen freien Bereich der Anker, umschließt diese und härtet dort aus. Dieser vordere Bereich der Anker dient somit zur Verankerung der feuerfesten Auskleidung.It is known to line industrial furnaces with refractory material. The difference between the temperature inside the oven (over 1000 ° Celsius) and the temperature of the outside area (about 20 ° Celsius) is very high. The outer wall is first lined with insulating material and refractory material is installed in front of this insulating layer. In order to secure this unshaped refractory material, such as concrete, in its position, anchors are mounted on the outer wall, which protrude through the insulating layer. During installation, the refractory material enters this front free area of the armature, encloses it and cures there. This front area of the anchor thus serves to anchor the refractory lining.

Es sind zahlreiche verschiedene Arten und Formen von Ankern für feuerfeste Baustoffe bekannt. Beispielsweise sind Flachstahlanker bekannt die im vorderen Bereich zwei Schenkel aufweisen, die Y-förmig auseinander gebogen sind und somit Arme bilden, die die feuerfeste Auskleidung sichern. Ferner sind Flachstahlanker bekannt, deren vorderer Bereich gegenüber dem Basisteil gedreht ist, wobei durch diese Drehung eine Verstärkung der Verankerungsfunktion des Flachstahlankers gegeben ist. Aus der EP 0 856 701 A2 ist ein Armierungsanker aus Rundstahl bekannt, der einen Basisteil und Arme aufweist, die an die freien Schenkelenden des Basisteils anschließen. Die Sicherung der Auskleidung wird durch die Anordnung der Arme gegeben.There are many different types and forms of anchors known for refractory materials. For example, flat steel anchors are known which have two legs in the front region, which are bent apart in a Y-shape and thus form arms which secure the refractory lining. Further, flat steel anchors are known, the front portion is rotated relative to the base part, which is given by this rotation enhancement of the anchoring function of the flat steel anchor. From the EP 0 856 701 A2 a reinforcing anchor made of round steel is known, which has a base part and arms which connect to the free leg ends of the base part. The securing of the lining is given by the arrangement of the arms.

Aus der DE 77 32 593 U ist ein einstückiger Stahlanker der eingangs genannten Art bekannt. Der dort beschriebene Stahlanker weist einen Bereich auf, an der die Rückbiegung der Schenkel stattfindet. Der Anker wird an dieser Rückbiegestelle an der kalten Seite, dem Blechmantel, befestigt. Die freien aufgespreizten Schenkel dieses bekannten Stahlankers weisen zu dem Verfüllbereich und bilden den vorderen Bereich des Ankers.From the DE 77 32 593 U is a one-piece steel anchor of the type mentioned above known. The steel anchor described there has an area where the back bending of the legs takes place. The anchor is attached to this rebound on the cold side, the metal jacket. The free spread legs of this known steel anchor point to the Verfüllbereich and form the front of the anchor.

Aus der DE 8 809 480 U1 ist ein Anker zum Befestigen einer feuerfesten Innenschicht eines Industrieofens bekannt, wobei der Anker eine Öse aufweist, über die er mittelbar mit einer weiteren an der Ofenwand befestigten Öse über ein Halteseil oder einen Haltedraht verbunden ist. Der in der feuerfesten Schicht verbleibende Teil des Ankers ist massiv ausgeführt.From the DE 8 809 480 U1 An anchor for fixing an inner refractory layer of an industrial furnace is known, wherein the anchor has an eyelet, via which it is indirectly connected to a further eyelet fixed to the furnace wall via a tether or a retaining wire. The remaining part of the anchor in the refractory layer is solid.

Aus der EP 0472 468 A1 sind hakenförmige Armierungsanker bekannt, die zusätzlich zu weiteren Armierungsbestandteilen zum Befestigen einer aufzusprühenden Auskleidung dienen. Die Anker sind dabei endseitig mit der zu verbindenden Fläche verbunden, wobei das freie Ende als Haken umgebogen ist.From the EP 0472 468 A1 Hook-shaped reinforcing anchors are known, which serve in addition to other reinforcing components for securing a aufzusprühenden lining. The anchors are connected at the end to the surface to be connected, wherein the free end is bent as a hook.

Aus der DE 203 03 937 U1 sind sowohl schraubenfederförmige als auch v- oder u-förmige Stahlanker für eine Auskleidungsmasse 16 bzw. einen monolithischen Baustoff bekannt. Ausgehend von einem gemeinsamen Fußende erstrecken sich hierbei in der v-förmigen Variante zwei Ankerschenkel, die in entgegengesetzter Richtung verlaufen und endseitig voneinander beabstandet sind.From the DE 203 03 937 U1 Both helical spring-shaped and v-shaped or u-shaped steel anchors for a lining mass 16 or a monolithic building material are known. Starting from a common foot extending here in the v-shaped variant two anchor legs which extend in the opposite direction and are spaced from each other end.

Darüber hinaus sind aus der US 3,657,399 A spiralförmige Anker zum Einbetten in eine einzusprühende bzw. einzugießende Zwischenschicht eines Ofens bekannt. Dieser spiralförmige Anker weist mehrere Schenkel auf, die jedoch, sofern sie in entgegengesetzter Richtung verlaufen, nicht endseitig verbunden sind.In addition, from the US 3,657,399 A helical anchor for embedding in a einzubießende or einzugießende intermediate layer of a furnace known. This helical anchor has a plurality of legs, which, however, if they are in the opposite direction, are not connected end-to-end.

Es hat sich nun gezeigt, dass im Betrieb der Industrieöfen die Stahlanker innerhalb der feuerfesten Auskleidung derart hohen Temperaturen ausgesetzt sind, dass die Gefahr besteht, dass sie weich werden, sich verformen und aus dem Beton herausgezogen werden, so dass hierdurch ihre Sicherungsfunktion wesentlich verringert wird.It has now been found that in the operation of the industrial furnaces, the steel anchors within the refractory lining are exposed to such high temperatures that there is a risk that they will soften, deform and be pulled out of the concrete, thereby significantly reducing their securing function ,

Die der vorliegenden Erfindung zugrunde liegende Aufgabe besteht darin, einen Stahlanker zur Verankerung vorzuschlagen, der auch bei hohen Temperaturen die feuerfeste Auskleidung, insbesondere Beton, sicher an der Außenwand hält. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass ein Stahlanker zur Verankerung vorgeschlagen wird, der im vorderen Bereich zwei miteinander verbundene Schenkel aufweist, die in Gegenrichtung auseinander gebogen sind und eine Öse bilden, in der die zu verankernden Baustoffe aushärten.The object underlying the present invention is to propose a steel anchor for anchoring, which holds the refractory lining, especially concrete, securely on the outer wall, even at high temperatures. This object is achieved in that a steel anchor is proposed for anchoring, which has two interconnected legs in the front region, which are bent apart in the opposite direction and form an eyelet in which to harden the building materials to be anchored.

Der vordere Bereich des Ankers dient zur Verankerung der feuerfesten Auskleidung. Dieser vordere Teil ist als Öse ausgebildet, wobei der Anker mit seinem Basisteil an der Außenwand befestigt wird. Vorzugsweise wird der Stahlanker so an der Außenwand befestigt, dass die Ösenöffnung waagrecht angeordnet ist. Beim Verfüllen gelangt das Auskleidungsmaterial, beispielsweise Beton, leicht durch die Ösenöffnung. Härtet das Auskleidungsmaterial aus, so härtet es auch in der Öse aus und verstärkt die Sicherungsfunktion des Ankers für das gesamte Auskleidungsmaterial. Da die Öse mit Beton gefüllt ist, ist ein Herausziehen des Ankers gegenüber einer Ausführung mit freien Schenkelenden erschwert.The front portion of the anchor serves to anchor the refractory lining. This front part is designed as an eyelet, wherein the anchor is fastened with its base part on the outer wall. Preferably, the steel anchor is attached to the outer wall so that the eyelet opening is horizontal is arranged. When filling the lining material, such as concrete, easily passes through the eyelet opening. If the lining material hardens, it also hardens in the eyelet and reinforces the securing function of the anchor for the entire lining material. Since the eyelet is filled with concrete, pulling out of the armature is difficult compared to a design with free leg ends.

Wird ein Anker aus Flachstahl verwendet, so wird im vorderen Bereich des Flachstahlankers ein Schlitz gesägt, dessen seitliche Schenkel dann zur Seite hin aufgedrückt werden. Am vorderen Ende verbleibt ein geschlossener Bereich, so dass durch die auseinander gebogenen Schenkel des Schlitzes eine Öse gebildet wird. Der geschlossene Endbereich ist vorzugsweise mindestens so lang wie das Basisteil des Flachstahls breit ist. Die beiden Schenkel werden vorzugsweise winklig auseinander gebogen, so dass sich eine rhombische oder rechteckige Ösenöffnung bildet. Eine rundliche Form ist ebenfalls möglich. Die offene Breite der Öse ist vorzugsweise mindestens so groß wie die Basisbreite des Ankers. Die freie Länge der Öse ist vorzugsweise mindestens die doppelte Basisbreite des Ankers. Die Öse selbst ist vorzugsweise doppelt so lang wie sie breit ist.If an anchor made of flat steel is used, then a slot is sawn in the front region of the flat steel anchor, the lateral limbs of which are then pressed to the side. At the front end remains a closed area, so that an eyelet is formed by the bent legs of the slot. The closed end region is preferably at least as long as the base part of the flat steel is wide. The two legs are preferably bent apart at an angle, so that forms a rhombic or rectangular eyelet opening. A roundish shape is also possible. The open width of the eyelet is preferably at least as large as the base width of the anchor. The free length of the eyelet is preferably at least twice the base width of the anchor. The eyelet itself is preferably twice as long as it is wide.

Bei der Herstellung des Stahlankers wird die Öse gegenüber dem Basisteil des Flachstahls um mindestens 90° oder um ein Vielfaches davon gedreht. Dieser Flachstahlanker wird an der Außenwand befestigt, wobei die Ösenöffnung vorzugsweise senkrecht auf der Ebene des Flachstahls steht.In the manufacture of the steel anchor, the eyelet is rotated relative to the base part of the flat steel by at least 90 ° or by a multiple thereof. This flat steel anchor is attached to the outer wall, wherein the eye opening is preferably perpendicular to the plane of the flat steel.

Wird der Stahlanker aus Rundstahl hergestellt, so wird der Rundstahl U-förmig gebogen und die freien Schenkel bilden die Basis, die an der Außenwand befestigt werden. Der vordere Bereich eines derartigen Rundstahlankers ist U-förmig und somit geschlossen. Die beiden Schenkel dieses U werden auseinander gebogen, um die gewünschte Öse zu bilden.If the steel anchor made of round steel, the round steel is bent in a U-shape and the free legs form the base, which are attached to the outer wall. The front portion of such a round steel anchor is U-shaped and thus closed. The two legs of this U are bent apart to form the desired eyelet.

Gemäß einer weiteren besonders bevorzugten Ausführungsform ist der vordere Bereich des Ankers und die gebildete Öse mit organischem Material beschichtet, das bei den Betriebstemperaturen schmilzt, verbrennt, erweicht, schwindet, schrumpft, sublimiert, verdampft oder verschwelt. Durch diese Beschichtung bildet sich bei Betriebstemperaturen ein Dehnspalt, der thermische Änderungen des Ankers zulässt und geringfügige notwendige Beweglichkeiten des Ankers ermöglicht.According to another particularly preferred embodiment, the front portion of the anchor and the formed eyelet are coated with organic material which melts, burns, softens, shrinks, shrinks, sublimates, evaporates or foams at the operating temperatures. This coating forms an expansion gap at operating temperatures, which allows thermal changes of the armature and allows slight necessary mobility of the armature.

Gemäß einer weiteren besonders bevorzugten Ausführungsform ist das vordere Ende des Ankers mit einer Kunststoffkappe bedeckt. Bei Betriebstemperaturen schmelzen diese Kappen, so dass ein Dehnspalt entsteht, der das Verspannen des Stahlankers mindert.According to a further particularly preferred embodiment, the front end of the armature is covered with a plastic cap. At operating temperatures, these caps melt, resulting in an expansion gap that reduces the distortion of the steel anchor.

Weitere Merkmale der Erfindung ergeben sich aus den Merkmalen der Unteransprüche sowie den sonstigen Anmeldungsunterlagen.Other features of the invention will become apparent from the features of the claims and the other application documents.

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
den Querschnitt durch Anker aus Flachstahl, die an einer Wand befestigt sind und
Fig. 2
den Querschnitt durch Anker aus Rundstahl, die an einer Wand befestigt sind.
Show it:
Fig. 1
the cross section through anchor made of flat steel, which are attached to a wall and
Fig. 2
the cross section through anchor made of round steel, which are attached to a wall.

Fig. 1 zeigt die einstückigen Stahlanker 1 und 2, die zur Verankerung der feuerfesten Auskleidung 3 dienen. Diese Stahlanker 1 und 2 sind aus Flachstahl hergestellt und mit ihrer Basis an der Wand 4 befestigt. Diese Wand 4 ist mit Isoliermaterial 5 abgekleidet. Die Stahlanker 1 und 2 ragen mit ihrem vorderen Bereich durch die Isolierschicht 5 hindurch. Dieser vordere Bereich der Stahlanker 1 und 2 dient zur Verankerung der feuerfesten Auskleidung 3, die beispielsweise aus Beton hergestellt ist. Fig. 1 shows the one-piece steel anchors 1 and 2, which serve to anchor the refractory lining 3. These steel anchors 1 and 2 are made of flat steel and fixed with its base on the wall 4. This wall 4 is lined with insulating material 5. The steel anchors 1 and 2 project with their front portion through the insulating layer 5 therethrough. This front Area of steel anchors 1 and 2 serves to anchor the refractory lining 3, which is made for example of concrete.

Der Flachstahlanker 1 hat die gleiche Form wie der Flachstahlanker 2. Zur Verdeutlichung wurde in Fig. 1 der Flachstahlanker 1 gegenüber dem Flachstahlanker 2 um 90° gedreht dargestellt. Im Folgenden wird der vordere Bereich der beiden Anker 1 und 2 im Einzelnen beschrieben.The flat steel anchor 1 has the same shape as the flat steel anchor 2. For clarity, in Fig. 1 the flat steel anchor 1 with respect to the flat steel anchor 2 shown rotated by 90 °. In the following, the front region of the two anchors 1 and 2 will be described in detail.

Der vordere Bereich der Flachstahlanker 1 und 2 ist gegenüber der Basis um 90° gedreht. Im vorderen Bereich ist der Schlitz 6 eingebracht, dessen beiden Schenkel 7 und 8 miteinander verbunden sind, nämlich sowohl an der Seite des Basisteiles als auch im Endbereich 9 des Ankers. Die Schenkel 7 und 8 sind auseinander gebogen und bilden somit eine Öse. Auf dem Endbereich 9 des Flachstahlankers 1 ist die Kunststoffkappe 10 angebracht, die im Betrieb schmilzt.The front portion of the flat steel anchors 1 and 2 is rotated 90 ° relative to the base. In the front region of the slot 6 is introduced, the two legs 7 and 8 are interconnected, namely both on the side of the base part and in the end portion 9 of the armature. The legs 7 and 8 are bent apart and thus form an eyelet. On the end portion 9 of the flat steel anchor 1, the plastic cap 10 is attached, which melts in operation.

Der Stahlanker 2 ist an der Wand 4 derart angebracht, dass die Ebene des Flachstahlankers 2 senkrecht zur Ebene des Flachstahlankers 1 ist. Man erkennt, dass der vordere Bereich dieses Stahlankers 2 die beiden Schenkel 11 und 12 aufweist, die eine Öse bilden. Die beiden Schenkel 11 und 12 sind über den Endbereich 13 miteinander verbunden, der die Kappe 14 trägt. Analog wie bei dem Stahlanker 1 wurde ein Schlitz in den vorderen Bereich des Flachstahls gesägt. Die beiden Schenkel 11 und 12 des Flachstahlankers 2 sind in Gegenrichtung winklig auseinander gebogen und bilden eine rhombische Ösenöffnung. Auch bei diesem Flachstahlanker steht die Ösenöffnung senkrecht auf der Ebene des Flachstahls. Vorzugweise ist der Flachstahlanker in der Art an der Wand 4 befestigt, wie es bei dem Flachstahlanker 1 dargestellt ist. In diesem Fall steht die Öse waagrecht, so dass beim Einbringen des feuerfesten Materials 3 dieses leicht in die Ösenöffnung gelangt und in dieser Ösenöffnung aushärtet. Hierdurch wird die Sicherungsfunktion des Ankers verstärkt. Es wäre jedoch auch möglich den Flachstahlanker 1 wie bei dem Flachstahlanker 2 dargestellt, anzuordnen.The steel anchor 2 is attached to the wall 4 such that the plane of the flat steel anchor 2 is perpendicular to the plane of the flat steel anchor 1. It can be seen that the front region of this steel anchor 2 has the two legs 11 and 12, which form an eyelet. The two legs 11 and 12 are connected to each other via the end portion 13 which carries the cap 14. Analogous to the steel anchor 1, a slot was sawn in the front area of the flat steel. The two legs 11 and 12 of the flat steel anchor 2 are bent apart in the opposite direction and form a rhombic eye opening. Also in this flat steel anchor, the eye opening is perpendicular to the plane of the flat steel. Preferably, the flat steel anchor is fixed in the manner of the wall 4, as shown in the flat steel anchor 1. In this case, the eyelet is horizontal, so that when introducing the refractory material 3 this easily enters the eyelet opening and hardens in this eyelet opening. This enhances the fuse function of the armature. It would also be possible the flat steel anchor 1 as shown in the flat steel anchor 2 to arrange.

Beide Anker 1 und 2 sind einstückig ausgebildet und der vordere Bereich gegenüber dem Basisteil um 90° gedreht. Dieses Verdrehen erfolgt vorzugsweise um mindestens 90° oder um ein Vielfaches davon.Both armatures 1 and 2 are formed in one piece and the front area is rotated by 90 ° relative to the base part. This twisting is preferably carried out by at least 90 ° or by a multiple thereof.

Die Öse selbst ist bei dieser Ausführungsform doppelt so lang wie breit. Die freie Länge der Öse ist mindestens die doppelte Basisbreite des Ankers. Die offene Breite der Öse ist mindestens so groß wie die Basisbreite des Ankers.The eyelet itself is twice as long as it is wide in this embodiment. The free length of the eyelet is at least twice the base width of the anchor. The open width of the eyelet is at least as large as the base width of the anchor.

In Fig. 2 ist eine weitere Ausführungsform dargestellt. Die einstückigen Stahlanker 15 und 16 sind aus Rundstahl hergestellt, wobei der Rundstahl U-förmig gebogen ist und seine freien Schenkel die Basis bilden, die an der Wand 4 befestigt werden. Der vordere Bereich der Rundstahlanker 15 und 16 ist U-förmig und somit geschlossen. Die beiden Schenkel 17 und 18 des Rundstahlankers 15 sind auseinander gebogen und bilden eine Öse, die von dem feuerfesten Material 3 beim Verfüllen durchdrungen wird und in der das Material aushärten kann.In Fig. 2 another embodiment is shown. The one-piece steel anchors 15 and 16 are made of round steel, wherein the round bar is bent in a U-shape and its free legs form the base, which are fastened to the wall 4. The front portion of the round steel anchors 15 and 16 is U-shaped and thus closed. The two legs 17 and 18 of the round steel anchor 15 are bent apart and form an eyelet, which is penetrated by the refractory material 3 during filling and in which the material can harden.

Der Rundstahlanker 16 ist gegenüber dem Rundstahlanker 15 um 90° gedreht, so dass die beiden auseinander gebogenen Schenkel 19 und 20 dieses Rundstahlankers 16 erkenntlich eine Öse bilden. Der Schenkel 19 ist nach oben und der Schenkel 20 nach unten gebogen, so dass eine rhombische Ösenöffnung gebildet wurde. Der Endbereich dieses Rundstahlankers ist U-förmig und mit der Kappe 21 bedeckt. Beim Rundstahlanker 15 ist die Kappe 22 erkenntlich, die über dem U-förmigen vorderen Bereich des Rundstahlankers 15 angebracht ist.The round steel anchor 16 is rotated relative to the round steel anchor 15 by 90 °, so that the two bent legs 19 and 20 of this round steel anchor 16 recognizably form an eyelet. The leg 19 is upwardly bent and the leg 20 down, so that a rhombic eye opening was formed. The end portion of this round steel anchor is U-shaped and covered with the cap 21. When round steel anchor 15, the cap 22 can be seen, which is mounted over the U-shaped front portion of the round steel anchor 15.

Die Größe, Länge und Breite der gebildeten Öse entsprechen denen wie sie gemäß Fig. 1 beschrieben wurden.The size, length and width of the eyelet formed correspond to those in accordance with Fig. 1 have been described.

Claims (8)

  1. A single-piece steel anchor (1) for anchoring unformed fireproof building materials of a fireproof lining (3), particularly in an industrial furnace, the steel anchor comprising two portions,
    a) a base which can be attached at the end side to an industrial furnace wall (4) and which can be located inside an insulating layer (5) of the industrial furnace, and
    b) a front region which joins the base and can be connected to a fireproof lining (3), characterized in that the anchor (1, 15) comprises two limbs (7, 8, 17, 18) which are connected to each other in the front region, which are bent apart in opposite directions and form an eye in which the building materials of a fireproof lining (3), which are to be anchored, harden.
  2. The steel anchor (1) according to Claim 1, characterized in that the limbs (7, 8, 17, 18) of the anchor (1, 15) form a rhombic, rectangular or roundish eye opening.
  3. The steel anchor (1) according to Claim 1 or 2, characterized in that the eye is double as long as it is wide.
  4. The steel anchor (1) according to Claim 1, 2 or 3, characterized in that the free length of the eye is at least double the base width of the anchor (1).
  5. The steel anchor (1) according to any one of the preceding claims, characterized in that the open width of the eye is at least as large as the base width of the anchor (1).
  6. The steel anchor (1) according to any one of the preceding claims, characterized in that the front region of the anchor (1) and the eye formed are coated with organic material which melts, burns, softens, decreases, shrinks, sublimates, evaporates or carbonizes at the operating temperatures.
  7. The steel anchor (1) according to any one of the preceding claims, characterized in that the front end (9) of the anchor (1) is covered with a plastic cap (10).
  8. A system formed from an industrial furnace wall (4) having a fireproof lining (3) arranged in front of it as well as an insulating layer (5) arranged between the industrial furnace wall (4) and the fireproof lining (3) having a steel anchor according to any one of the preceding claims, wherein the base is fixed at the end side to the industrial furnace wall (4) and is located inside the insulating layer (5) of the industrial furnace and the front region, which joins the base, is connected to the fireproof lining (3).
EP09722582.5A 2008-03-19 2009-02-20 Single-piece steel anchor for anchoring unformed fireproof building materials Active EP2255141B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810014984 DE102008014984B3 (en) 2008-03-19 2008-03-19 One-piece steel anchor for anchoring unshaped refractory materials
PCT/EP2009/001220 WO2009115173A1 (en) 2008-03-19 2009-02-20 Single-piece steel anchor for anchoring unformed fireproof building materials

Publications (2)

Publication Number Publication Date
EP2255141A1 EP2255141A1 (en) 2010-12-01
EP2255141B1 true EP2255141B1 (en) 2016-05-11

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EP (1) EP2255141B1 (en)
DE (1) DE102008014984B3 (en)
WO (1) WO2009115173A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009080167A1 (en) 2007-12-22 2009-07-02 Jünger+Gräter Gmbh Feuerfestbau Wall lining of industrial ovens
DE102010029202A1 (en) * 2010-05-20 2011-11-24 Mokesys Ag Cladding for a finned tube wall of a combustion furnace
DE102012006582B4 (en) * 2012-03-30 2016-02-18 Uwe Geib Foam insulation for container wall elements
DE202014005475U1 (en) * 2014-07-03 2015-10-06 Vhi Vertriebsgesellschaft Für Hochtemperaturwerkstoffe Und Industriebedarf Mbh Refractory lining and a fastening device therefor

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
FR1121563A (en) * 1954-12-17 1956-08-20 Anciens Etablissements Civet Sealing tab stapling system
US3377764A (en) * 1966-04-26 1968-04-16 Storch Bernard Anchoring means for masonry walls
GB1210262A (en) * 1967-06-07 1970-10-28 Causeway Steel Products Ltd Devices for reinforcing and anchoring refractory linings
LU57193A1 (en) * 1968-10-30 1970-05-04 Glaverbel
DE7732593U1 (en) * 1977-10-21 1978-02-09 Juenger & Graeter Gmbh & Co Kg, 6830 Schwetzingen STEEL ANCHORS FOR THE ANCHORING OF TWO-LAYER FIRED CONCRETE CLADDING
DE8809480U1 (en) * 1988-07-25 1988-11-24 Schmelzbasaltwerk Kalenborn - Dr.-Ing. Mauritz GmbH & Co KG, 5461 Vettelschoß Device for attaching wear-resistant linings to a base structure
FR2666032B1 (en) * 1990-08-24 1993-10-15 Daussan Cie PROCESS FOR APPLYING A COATING ON A SUBSTRATE, DEVICE FOR CARRYING OUT THE METHOD AND COATING OBTAINED BY THE PROCESS.
DE29701591U1 (en) * 1997-01-31 1997-03-27 Nebgen, Peter, Dipl.-Ing., 56653 Wassenach Reinforcement anchor
DE20303937U1 (en) * 2003-03-12 2003-05-08 Refratechnik Holding GmbH, 85737 Ismaning Method for securing fireproof cladding using tapering spiral metal springs embedded into the cladding
WO2006094342A1 (en) * 2005-03-09 2006-09-14 Antec Engineering Pty Limited Improved anchor for refractory linings

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Publication number Publication date
DE102008014984B3 (en) 2009-08-27
WO2009115173A1 (en) 2009-09-24
EP2255141A1 (en) 2010-12-01

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