EP0471218A1 - Roller for roller hearth furnace - Google Patents

Roller for roller hearth furnace Download PDF

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Publication number
EP0471218A1
EP0471218A1 EP91112406A EP91112406A EP0471218A1 EP 0471218 A1 EP0471218 A1 EP 0471218A1 EP 91112406 A EP91112406 A EP 91112406A EP 91112406 A EP91112406 A EP 91112406A EP 0471218 A1 EP0471218 A1 EP 0471218A1
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EP
European Patent Office
Prior art keywords
fiber
roller
spray compound
support rings
fiber mat
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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.)
Granted
Application number
EP91112406A
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German (de)
French (fr)
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EP0471218B1 (en
Inventor
Hermann Stein
Alwin Vogel
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Didier Werke AG
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Didier Werke AG
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Publication of EP0471218A1 publication Critical patent/EP0471218A1/en
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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
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • F27D1/0009—Comprising ceramic fibre elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings
    • F27D1/144—Supports for ceramic fibre materials
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails

Definitions

  • the invention relates to a roller for a roller furnace, in particular for the heat treatment of slabs, the roller having support rings at intervals and thermal insulation being arranged between the support rings.
  • the slabs rest on the support rings and are transported through the roller furnace by means of the rollers for heat treatment.
  • the roller interior is usually water-cooled.
  • the thermal insulation is intended to protect the roll against the hot slab.
  • DE 32 31 736 C2 describes a jacket for insulating a cooled sliding, support or cross tube in an oven.
  • molded bodies on the underside of a ceramic fiber material and molded bodies on the upper tube side of a high-strength ceramic are provided.
  • This structure is unsuitable for rotating rollers.
  • Preformed insulation bodies result in joints in the thermal insulation of the roll. Such joints would affect the effectiveness of the heat insulation.
  • Moldings for insulating pipes are also described in DE 31 25 440 A1 and in DE 36 09 047 A1. Such molded bodies are unsuitable for rollers, since they can hardly withstand the dynamic loads of a rotating roller and joint formation can be expected.
  • the object of the invention is to propose a role of the type mentioned, the thermal insulation is constructed so that it withstands the dynamic loads on the role and the chemical loads arising from the material to be transported (slab).
  • the above object is achieved in a roll of the type mentioned in that a needled first fiber mat is placed on the circumference of the roll between the support rings, that a fiber spray compound is sprayed onto the first fiber mat, which contains a binder that the fiber spray compound by means of Binder is connected to the first fiber mat and that a pre-compressed second fiber mat is located laterally between the support rings and the fiber spray compound.
  • the fiber molding compound has favorable thermal insulation properties. As a result, the slab transported on the support rings of the roll and the roll are largely decoupled from one another thermally, so that neither the slab is cooled from the roll nor the roll is heated by the slab.
  • the fiber spray compound extends over the entire circumference and is seamless in itself, it is avoided that scale of the slab or alkali residues of continuous casting powders of the slab can damage the roll.
  • the fiber spray compound is held securely on the roll, since the first fiber mat, through its binding with the fiber spray compound, stabilizes the hold of the fiber spray compound on the roll and is itself solidified by the binder of the fiber spray compound migrating into it.
  • the fiber spray compound withstands the centrifugal forces that arise during the rotation of the roller and the forces that occur during the accelerations of the roller, without breaking out partially.
  • the pre-compressed, second fiber mat permanently closes the joints that exist or arise between the fiber spray compound and the support rings. Even a shrinkage of the fiber spray compound does not lead to open joints between the latter and the support rings, since the pre-compressed fiber mat adapts to joints.
  • metal tensioning bands are placed around the roller, to which retaining anchors for the fiber spray compound are attached. This further stabilizes the fiber spray compound on the roll.
  • the tension band is preferably tightened to the roller by means of screws. This eliminates the need for welded connections between the roller and the holding anchors.
  • a metallic roller (1) has several metallic support rings (2) distributed over its length.
  • Each support ring (2) consists of two spaced flange ring parts (3), an annular body (4) inserted between them and a tread part (5) fastened thereon.
  • Metallic tensioning straps (6) are placed around the roller (1) between two adjacent support rings (2). Each strap (6) has angled ends (7). These are clamped against each other by means of a screw-nut connection (8) in such a way that the tensioning band (6) is stuck to the roller (1).
  • Each retaining anchor (9) consists of a retaining pin (10) which is welded to the tension band (6) and a flat clamping piece (11) which is locked on the retaining pin (10).
  • a first needled, binder-free fiber mat (12) made of ceramic fibers (blanket) is placed around the roller (1) between the support rings (2). This pierces the retaining pins (10).
  • Precompressed second fiber mats (13) made of ceramic fibers are placed on the side of the support rings (2).
  • the fiber mat (13) is a fiber mat of low initial density, which is compressed from this initial density to a thickness of approximately 50 mm by moistening to a thickness of 10 mm.
  • a fiber spray compound (14) made of ceramic fibers is sprayed on between the second fiber mats (13) and the first fiber mat (12). It is suitable for this a fiber spray compound that contains colloidal Si0 2 as a binder. This fiber mass must then be dried to achieve its final strength.
  • a fiber cement made of ceramic fibers with a hydraulically setting binder is also suitable as a fiber spray compound. This reaches its strength even at room temperature.
  • the binder of the sprayed-on fiber spray compound (14) partially penetrates into the first fiber mat (12), so that on the one hand the first fiber mat (12) solidifies and on the other hand a bond is established between it and the fiber spray compound (14) so that the fiber spray compound ( 14) is securely held on the circumference of the roller (1).
  • the clamping pieces (11) stabilize the fiber spray compound (14).
  • the wall thickness of the fiber spray compound (14) is substantially greater, for example by a factor of 7 to 10, than that of the first fiber mat (12).
  • the fiber spray compound (14) can be provided with a ceramic coating on its surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Tunnel Furnaces (AREA)
  • Nonwoven Fabrics (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

A roller (1) for a roller hearth furnace, in particular for the heat treatment of slabs, has at intervals support rings (2), between which a heat insulation is arranged. The heat insulation is to withstand dynamic loading of the roller (1) and chemcial loading by the slabs. <??>To the circumference of the roller (1), between the support rings (2), a needled first fibre mat (12) is applied, onto which there is sprayed fibre spray mass (14). The fibre spray mass (14) is connected to the first fibre mat (12) by means of its binder. At the side, between the support rings (2) and the fibre spray mass (14), lies a precompressed second fibre mat (13). <IMAGE>

Description

Die Erfindung betrifft eine Rolle für einen Rollenofen, insbesondere zur Wärmebehandlung von Brammen, wobei die Rolle in Abständen Tragringe aufweist und zwischen den Tragringen eine Wärmedämmung angeordnet ist.The invention relates to a roller for a roller furnace, in particular for the heat treatment of slabs, the roller having support rings at intervals and thermal insulation being arranged between the support rings.

Bei Rollenöfen liegen die Brammen auf den Tragringen auf und werden mittels der Rollen zur Wärmebehandlung durch den Rollenofen transportiert. Der Rolleninnenraum ist gewöhnlich wassergekühlt. Die Wärmedämmung soll einerseits die Rolle gegenüber der heißen Bramme schützen. Andererseits soll sie ein Auskühlen der Bramme verhindern.In the case of roller furnaces, the slabs rest on the support rings and are transported through the roller furnace by means of the rollers for heat treatment. The roller interior is usually water-cooled. On the one hand, the thermal insulation is intended to protect the roll against the hot slab. On the other hand, it should prevent the slab from cooling down.

In der DE 32 31 736 C2 ist eine Ummantelung zur Isolierung eines gekühlten Gleit-, Trag- oder Querrohres in einem Ofen beschrieben. Um die Oberseite und die Unterseite des Rohres den jeweiligen Beanspruchungen anzupassen, sind rohrunterseitige Formkörper aus einem keramischem Fasermaterial und rohroberseitige Formkörper aus einer hochfesten Keramik vorgesehen. Für umlaufende Rollen ist dieser Aufbau ungeeignet. Durch vorgeformte Isolationskörper ergäben sich Fugen in der Wärmeisolierung der Rolle. Solche Fugen würden die Wirkung der Wärme-Isolierung beeinträchtigen.DE 32 31 736 C2 describes a jacket for insulating a cooled sliding, support or cross tube in an oven. In order to adapt the top and bottom of the tube to the respective stresses, molded bodies on the underside of a ceramic fiber material and molded bodies on the upper tube side of a high-strength ceramic are provided. This structure is unsuitable for rotating rollers. Preformed insulation bodies result in joints in the thermal insulation of the roll. Such joints would affect the effectiveness of the heat insulation.

Auch in der DE 31 25 440 A1 und in der DE 36 09 047 A1 sind Formkörper zur Dämmung von Rohren beschrieben. Für Rollen sind solche Formkörper ungeeignet, da sie kaum den dynamischen Belastungen einer drehenden Rolle standhalten und mit einer Fugenbildung zu rechnen ist.Moldings for insulating pipes are also described in DE 31 25 440 A1 and in DE 36 09 047 A1. Such molded bodies are unsuitable for rollers, since they can hardly withstand the dynamic loads of a rotating roller and joint formation can be expected.

Aufgabe der Erfindung ist es, eine Rolle der eingangs genannten Art vorzuschlagen, deren Wärmedämmung so aufgebaut ist, daß sie den dynamischen Belastungen der Rolle und den durch das zu transportierende Gut (Bramme) entstehenden chemischen Belastungen standhält.The object of the invention is to propose a role of the type mentioned, the thermal insulation is constructed so that it withstands the dynamic loads on the role and the chemical loads arising from the material to be transported (slab).

Erfindungsgemäß ist obige Aufgabe bei einer Rolle der eingangs genannten Art dadurch gelöst, daß auf den Umfang der Rolle zwischen den Tragringen eine vernadelte erste Fasermatte aufgelegt ist, daß auf die erste Fasermatte eine Faserspritzmasse aufgespritzt ist, die ein Bindemittel enthält, daß die Faserspritzmasse mittels des Bindemittels mit der ersten Fasermatte verbunden ist und daß seitlich zwischen den Tragringen und der Faserspritzmasse eine vorkomprimierte zweite Fasermatte liegt.According to the invention, the above object is achieved in a roll of the type mentioned in that a needled first fiber mat is placed on the circumference of the roll between the support rings, that a fiber spray compound is sprayed onto the first fiber mat, which contains a binder that the fiber spray compound by means of Binder is connected to the first fiber mat and that a pre-compressed second fiber mat is located laterally between the support rings and the fiber spray compound.

Die Faserspritzmasse weist günstige Wärmedämmeigenschaften auf, Dadurch sind die auf den Tragringen der Rolle transportierte Bramme und die Rolle wärmetechnisch weitgehend voneinander entkoppelt, so daß weder die Bramme von der Rolle abgekühlt noch die Rolle von der Bramme aufgeheizt wird.The fiber molding compound has favorable thermal insulation properties. As a result, the slab transported on the support rings of the roll and the roll are largely decoupled from one another thermally, so that neither the slab is cooled from the roll nor the roll is heated by the slab.

Da die Faserspritzmasse sich über den gesamten Umfang erstreckt und in sich fugenlos ist, ist vermieden, daß Zunder der Bramme oder Alkalirückstände von Stranggußpulvern der Bramme die Rolle schädigen können.Since the fiber spray compound extends over the entire circumference and is seamless in itself, it is avoided that scale of the slab or alkali residues of continuous casting powders of the slab can damage the roll.

Die Faserspritzmasse ist an der Rolle sicher gehalten, da die erste Fasermatte durch ihre Bindung mit der Faserspritzmasse den Halt der Faserspritzmasse an der Rolle stabilisiert und selbst durch das in sie einwandernde Bindemittel der Faserspritzmasse verfestigt ist. Die Faserspritzmasse hält dadurch den Fliehkräften, die bei der Rotation der Rolle entstehen, und den bei den Beschleunigungen der Rolle auftretenden Kräften stand, ohne partiell auszubrechen.The fiber spray compound is held securely on the roll, since the first fiber mat, through its binding with the fiber spray compound, stabilizes the hold of the fiber spray compound on the roll and is itself solidified by the binder of the fiber spray compound migrating into it. The fiber spray compound withstands the centrifugal forces that arise during the rotation of the roller and the forces that occur during the accelerations of the roller, without breaking out partially.

Die vorkomprimierte, zweite Fasermatte schließt dauerhaft die an sich zwischen der Faserspritzmasse und den Tragringen bestehenden bzw. entstehenden Fugen. Auch ein Schwinden der Faserspritzmasse führt nicht zu offenen Fugen zwischen dieser und den Tragringen, da sich die vorkomprimierte Fasermatte Fugen anpaßt.The pre-compressed, second fiber mat permanently closes the joints that exist or arise between the fiber spray compound and the support rings. Even a shrinkage of the fiber spray compound does not lead to open joints between the latter and the support rings, since the pre-compressed fiber mat adapts to joints.

In bevorzugter Ausgestaltung der Erfindung sind um die Rolle metallische Spannbänder gelegt, an denen Halteanker für die Faserspritzmasse befestigt sind. Dadurch ist eine weitere Stabilisierung der Faserspritzmasse an der Rolle erreicht.In a preferred embodiment of the invention, metal tensioning bands are placed around the roller, to which retaining anchors for the fiber spray compound are attached. This further stabilizes the fiber spray compound on the roll.

Vorzugsweise ist das Spannband mittels Schrauben an der Rolle festgezogen. Es erübrigen sich damit Schweißverbindungen zwischen der Rolle und den Halteankern.The tension band is preferably tightened to the roller by means of screws. This eliminates the need for welded connections between the roller and the holding anchors.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung eines Ausführungsbeispiels. In der Zeichnung zeigen:

  • Figur 1 einen Querschnitt längs der Linie I-I nach Figur 2 und
  • Figur 2 einen Längsschnitt längs der Linie II-11 nach Figur 1 in Teilansicht.
Further advantageous refinements of the invention result from the subclaims and the following description of an exemplary embodiment. The drawing shows:
  • 1 shows a cross section along the line II of Figure 2 and
  • Figure 2 shows a longitudinal section along the line II-11 of Figure 1 in partial view.

Eine metallische Rolle (1) weist auf ihre Länge verteilt mehrere metallische Tragringe (2) auf. Jeder Tragring (2) besteht aus zwei beabstandeten Flanschringteilen (3), einem zwischen diese eingesetzten Ringkörper (4) und einem auf diesem befestigten Laufflächenteil (5).A metallic roller (1) has several metallic support rings (2) distributed over its length. Each support ring (2) consists of two spaced flange ring parts (3), an annular body (4) inserted between them and a tread part (5) fastened thereon.

Zwischen zwei benachbarten Tragringen (2) sind um die Rolle (1) metallische Spannbänder (6) gelegt. Jedes Spannband (6) weist abgewinkelte Enden (7) auf. Diese sind mittels einer Schrauben-Mutterverbindung (8) so gegeneinander verspannt, daß das Spannband (6) an der Rolle (1) festsitzt.Metallic tensioning straps (6) are placed around the roller (1) between two adjacent support rings (2). Each strap (6) has angled ends (7). These are clamped against each other by means of a screw-nut connection (8) in such a way that the tensioning band (6) is stuck to the roller (1).

An das Spannband (6) sind an seinem Umfang mehrere, beispielsweise acht, Halteanker (9) angeschweißt, von denen in Figur 1 nur zwei dargestellt sind. Jeder Halteanker (9) besteht aus einem Haltestift (10), der an das Spannband (6) angeschweißt ist und einem auf dem Haltestift (10) verrasteten flächigen Klemmstück (11).Several, for example eight, holding anchors (9) are welded to the clamping band (6) on its circumference, only two of which are shown in FIG. 1. Each retaining anchor (9) consists of a retaining pin (10) which is welded to the tension band (6) and a flat clamping piece (11) which is locked on the retaining pin (10).

Nach dem Befestigen der Spannbänder (6) an der Rolle (1), vor dem Aufsetzen der Klemmstücke (11), ist um die Rolle (1) zwischen den Tragringen (2) eine erste vernadelte, binderfreie Fasermatte (12) aus keramischen Fasern (Blanket) gelegt. Diese durchsticht dabei die Haltestifte (10).After fastening the tensioning straps (6) to the roller (1), before putting on the clamping pieces (11), a first needled, binder-free fiber mat (12) made of ceramic fibers (blanket) is placed around the roller (1) between the support rings (2). This pierces the retaining pins (10).

Seitlich an die Tragringe (2) sind vorkomprimierte zweite Fasermatten (13) aus keramischen Fasern gelegt. Die Fasermatte (13) ist eine Fasermatte geringer Ausgangsdichte, die von dieser Ausgangsdichte mit einer Dicke von etwa 50 mm durch Anfeuchten auf eine Dicke von 10 mm komprimiert ist.Precompressed second fiber mats (13) made of ceramic fibers are placed on the side of the support rings (2). The fiber mat (13) is a fiber mat of low initial density, which is compressed from this initial density to a thickness of approximately 50 mm by moistening to a thickness of 10 mm.

Nach dem Aufsetzen der flächigen Klemmstükke (11) auf die Haltestift (10) wird zwischen die zweiten Fasermatten (13) und auf die erste Fasermatte (12) eine Faserspritzmasse (14) aus keramischen Fasern aufgespritzt. Es eignet sich hierfür eine Faserspritzmasse, die kolloidales Si02 als Bindemittel enthält. Diese Fasermasse muß dann getrocknet werden, um ihre Endfestigkeit zu erreichen. Es eignet sich als Faserspritzmasse auch ein Faserzement aus keramischen Fasern mit einem hydraulisch abbindenden Bindemittel. Dieser erreicht seine Festigkeit auch bei Raumtemperatur.After the flat clamping pieces (11) have been placed on the retaining pin (10), a fiber spray compound (14) made of ceramic fibers is sprayed on between the second fiber mats (13) and the first fiber mat (12). It is suitable for this a fiber spray compound that contains colloidal Si0 2 as a binder. This fiber mass must then be dried to achieve its final strength. A fiber cement made of ceramic fibers with a hydraulically setting binder is also suitable as a fiber spray compound. This reaches its strength even at room temperature.

Das Bindemittel der aufgespritzten Faserspritzmasse (14) dringt teilweise in die erste Fasermatte (12) ein, so daß sich einerseits die erste Fasermatte (12) verfestigt und sich andererseits eine Bindung zwischen dieser und der Faserspritzmasse (14) einstellt, so daß die Faserspritzmasse (14) sicher am Umfang der Rolle (1) gehalten ist. Darüber hinaus stabilisieren die Klemmstücke (11) die Faserspritzmasse (14).The binder of the sprayed-on fiber spray compound (14) partially penetrates into the first fiber mat (12), so that on the one hand the first fiber mat (12) solidifies and on the other hand a bond is established between it and the fiber spray compound (14) so that the fiber spray compound ( 14) is securely held on the circumference of the roller (1). In addition, the clamping pieces (11) stabilize the fiber spray compound (14).

Die Wanddicke der Faserspritzmasse (14) ist wesentlich, beispielsweise um den Faktor 7 bis 10, größer als die der ersten Fasermatte (12).The wall thickness of the fiber spray compound (14) is substantially greater, for example by a factor of 7 to 10, than that of the first fiber mat (12).

In Längsrichtung der Rolle (1) erfolgende Schwindungen der Faserspritzmasse (14) werden durch die vorkomprimierten zweiten Fasermatten (13) ausgeglichen. Insgesamt entsteht eine riß- und fugenfreie Wärmedämmung der Rolle (1), wobei die Faserspritzmasse (14) auch Erschütterungen und Vibrationen, die beim Transport von Brammen über die Tragringe (2) stattfinden und den dabei auftretenden Fliehkräften standhält.Shrinkage of the fiber spray compound (14) in the longitudinal direction of the roll (1) is compensated for by the pre-compressed second fiber mats (13). Overall, crack and joint-free thermal insulation of the roll (1) is created, the fiber spray compound (14) also shocks and vibrations that take place during the transport of slabs over the support rings (2) and withstand the centrifugal forces that occur.

Im Bedarfsfall kann die Faserspritzmasse (14) an ihrer Oberfläche mit einer keramischen Beschichtung versehen sein.If necessary, the fiber spray compound (14) can be provided with a ceramic coating on its surface.

Zwischen den Flanschringteilen (3) jedes Tragrings (2) besteht ein Ringraum. In diesem sind vor dem Zusammensetzen der Flanschringteile (3) auf der Rolle (1) Schichten aus keramischem Faservlies (15) mit Latexbindung eingesetzt. Dadurch ist eine zusätzliche Wärmeisolation zwischen dem Ringkörper (4) bzw. des Laufflächenteils (5) und der Rolle (1) erreicht.There is an annular space between the flange ring parts (3) of each support ring (2). Before the flange ring parts (3) are put together on the roll (1), layers of ceramic fiber fleece (15) with a latex bond are used. This provides additional thermal insulation between the ring body (4) or the tread part (5) and the roller (1).

Claims (11)

1. Rolle für einen Rollenofen, insbesondere zur Wärmebehandlung von Brammen, wobei die Rolle in Abständen Tragringe aufweist und zwischen den Tragringen eine Wärmedämmung angeordnet ist,
dadurch gekennzeichnet,
daß auf den Umfang der Rolle (1) zwischen den Tragringen (2) eine vernadelte erste Fasermatte (12) aufgelegt ist, daß auf die erste Fasermatte (12) eine Faserspritzmasse (14) aufgespritzt ist, die ein Bindemittel enthält, daß die Faserspritzmasse (14) mittels des Bindemittels mit der ersten Fasermatte (12) verbunden ist und daß seitlich zwischen den Tragringen (2) und der Faserspritzmasse (14) eine vorkomprimierte zweite Fasermatte (13) liegt.1. roller for a roller furnace, in particular for the heat treatment of slabs, the roller having support rings at intervals and thermal insulation being arranged between the support rings,
characterized,
that a needled first fiber mat (12) is placed on the circumference of the roller (1) between the support rings (2), that a fiber spray compound (14) is sprayed onto the first fiber mat (12), which contains a binder that the fiber spray compound ( 14) is connected to the first fiber mat (12) by means of the binding agent and that a precompressed second fiber mat (13) lies laterally between the support rings (2) and the fiber spray compound (14). 2. Rolle nach Anspruch 1,
dadurch gekennzeichnet,
daß um die Rolle (1) metallische Spannbänder (6) gelegt sind, an denen Halteanker (9) für die Faserspritzmasse (14) befestigt sind.2. role according to claim 1,
characterized,
that around the roller (1) metallic tension bands (6) are placed, on which retaining anchors (9) for the fiber spray compound (14) are attached. 3. Rolle nach Anspruch 2,
dadurch gekennzeichnet,
daß die Halteanker (9) von an dem Spannband (6) befestigten Haltestiften (10) und auf diese aufsetzbaren flächigen Klemmstücken (11) gebildet sind.3. role according to claim 2,
characterized,
that the holding anchors (9) are formed by holding pins (10) fastened to the tensioning band (6) and flat clamping pieces (11) which can be placed thereon. 4. Rolle nach Anspruch 2 oder 3,
dadurch gekennzeichnet,
daß das Spannband (6) mittels einer Schrauben-Mutterverbindung (8) an die Rolle (1) festgezogen ist.4. role according to claim 2 or 3,
characterized,
that the tensioning band (6) is tightened to the roller (1) by means of a screw-nut connection (8). 5. Rolle nach einem der vorhergehenden Ansprüche 3 oder 4,
dadurch gekennzeichnet,
daß die erste Fasermatte (12) über die Haltestifte (10) gesteckt ist.5. Roll according to one of the preceding claims 3 or 4,
characterized,
that the first fiber mat (12) is placed over the holding pins (10). 6. Rolle nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Wandstärke der ersten Fasermatte (12) kleiner als die der Faserspritzmasse (14) ist.6. role according to one of the preceding claims,
characterized,
that the wall thickness of the first fiber mat (12) is smaller than that of the fiber spray compound (14). 7. Rolle nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die zweite Fasermatte (13) etwa um den Faktor 5 komprimiert zwischen dem Tragring (2) und der Faserspritzmasse (14) liegt.7. role according to one of the preceding claims,
characterized,
that the second fiber mat (13) is compressed by a factor of 5 between the support ring (2) and the fiber spray compound (14). 8. Rolle nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Faserspritzmasse (14) aus keramischen Fasern mit einem kolloidalen Si02 als Bindemittel besteht.8. role according to one of the preceding claims,
characterized,
that the fiber spray compound (14) consists of ceramic fibers with a colloidal Si0 2 as a binder. 9. Rolle nach einem der vorhergehenden Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß die Faserspritzmasse (14) aus keramischen Fasern mit einem hydraulischen Bindemittel besteht.9. Roll according to one of the preceding claims 1 to 7,
characterized,
that the fiber spray compound (14) consists of ceramic fibers with a hydraulic binder. 10. Rolle nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß innerhalb des Tragrings (2) ein Ringraum ausgebildet ist, in den ein keramisches Faservlies (15) mit Latexbindung eingesetzt ist.10. role according to one of the preceding claims,
characterized,
that an annular space is formed within the support ring (2), in which a ceramic fiber fleece (15) with a latex bond is inserted. 11. Rolle nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Faserspritzmasse (14) oberflächig mit einer keramischen Beschichtung versehen ist.11. Roll according to one of the preceding claims,
characterized,
that the fiber spray compound (14) is provided on the surface with a ceramic coating.
EP91112406A 1990-08-16 1991-07-24 Roller for roller hearth furnace Expired - Lifetime EP0471218B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4025935 1990-08-16
DE4025935A DE4025935A1 (en) 1990-08-16 1990-08-16 ROLE FOR A ROLLER OVEN

Publications (2)

Publication Number Publication Date
EP0471218A1 true EP0471218A1 (en) 1992-02-19
EP0471218B1 EP0471218B1 (en) 1994-05-18

Family

ID=6412344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112406A Expired - Lifetime EP0471218B1 (en) 1990-08-16 1991-07-24 Roller for roller hearth furnace

Country Status (4)

Country Link
US (1) US5143684A (en)
EP (1) EP0471218B1 (en)
AT (1) ATE105929T1 (en)
DE (2) DE4025935A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685069A1 (en) * 1991-12-14 1993-06-18 Loi Ind Ofenanlagen ROLL FOR ROLL OVENS AND RELATING METHOD.
EP0633815A1 (en) * 1992-02-24 1995-01-18 Bricmanage Inc Improvement in an insulated furnace roller and method of manufacture.
EP0642652A1 (en) * 1993-03-24 1995-03-15 Italimpianti Of America, Inc. Rolls for high temperature roller hearth furnaces
EP0851195A1 (en) * 1996-12-27 1998-07-01 Kubota Corporation Tire roller for transporting slabs
DE19923114A1 (en) * 1999-05-19 2000-11-23 Johannes Stark Roll used for a heat treatment furnace of a steel or rolling mill has an inner insulation cylinder formed of several insulating rings coaxially arranged next to each other
DE102017208710A1 (en) 2016-09-27 2018-03-29 Sms Group Gmbh Coolable furnace roll and method of operating such

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Publication number Priority date Publication date Assignee Title
FR2707272B1 (en) * 1993-07-09 1995-09-15 Stein Heurtey Improvements brought to the cooled rollers for the handling of products in particular metallurgical and iron and steel.
US5891516A (en) * 1998-06-12 1999-04-06 Weavexx Corporation Fabric for forming fiber cement articles
DE10012940A1 (en) * 2000-03-16 2001-09-20 Loi Thermprocess Gmbh Disc roller for roller hearth furnace includes circumferentially-spaced rounded elevations in its supporting sections, which engage carrier ring depressions
US20050085148A1 (en) * 2003-10-17 2005-04-21 Thomas Baumgartner Felt for forming fiber cement articles with multiplex base fabric
US20060068665A1 (en) * 2004-09-29 2006-03-30 Heinz Pernegger Seamed felt for forming fiber cement articles and related methods
US20130008552A1 (en) 2011-07-06 2013-01-10 Hans Peter Breuer Felt for forming fiber cement articles and related methods
CN111811282A (en) * 2020-07-01 2020-10-23 武汉钢铁有限公司 Heat insulation protective layer structure of water-cooling furnace roller and preparation method thereof

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DE1929891A1 (en) * 1969-06-12 1971-02-18 Plibrico Co Gmbh Refractory jacket for the ingot support - tubes in pusher or rocker-bar furnaces
FR2273224A1 (en) * 1974-05-28 1975-12-26 Carborundum Co
DE2940320B1 (en) * 1979-10-04 1981-02-12 Bloom Eng Europa Gmbh Fireproof insulation from molded inserts for ovens
GB2091844A (en) * 1981-01-22 1982-08-04 Nippon Steel Corp Transport roll for transporting hot material and train of such transport rolls
FR2508594A1 (en) * 1981-06-27 1982-12-31 Promat THERMAL PROTECTION SHEATH, FOR EXTENDED PARTS OF A STRUCTURE
FR2532399A1 (en) * 1982-08-26 1984-03-02 Didier Werke Ag INSULATION PREFORMS FOR SAGING COOLED TUBES IN HEATING FACILITIES
US4848055A (en) * 1988-05-09 1989-07-18 A. P. Green Industries, Inc. Center mounted insulating module for a furnace
EP0345147A1 (en) * 1988-06-02 1989-12-06 Stein Heurtey Roll for handling siderurgical products transported inside a furnace

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US4330912A (en) * 1980-06-18 1982-05-25 Crucible Inc. Furnace roll
JPS60145317A (en) * 1983-12-30 1985-07-31 Nippon Steel Corp Structure of horizontal skid beam pipe for heating furnace
JPS60152615A (en) * 1984-01-23 1985-08-10 Chugai Ro Kogyo Kaisha Ltd Supporting member in industrial furnace
DE3609047A1 (en) * 1985-03-29 1987-01-29 Bloom Eng Europa Gmbh Refractory casing for pipes in preheating furnaces

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Publication number Priority date Publication date Assignee Title
DE1929891A1 (en) * 1969-06-12 1971-02-18 Plibrico Co Gmbh Refractory jacket for the ingot support - tubes in pusher or rocker-bar furnaces
FR2273224A1 (en) * 1974-05-28 1975-12-26 Carborundum Co
DE2940320B1 (en) * 1979-10-04 1981-02-12 Bloom Eng Europa Gmbh Fireproof insulation from molded inserts for ovens
GB2091844A (en) * 1981-01-22 1982-08-04 Nippon Steel Corp Transport roll for transporting hot material and train of such transport rolls
FR2508594A1 (en) * 1981-06-27 1982-12-31 Promat THERMAL PROTECTION SHEATH, FOR EXTENDED PARTS OF A STRUCTURE
FR2532399A1 (en) * 1982-08-26 1984-03-02 Didier Werke Ag INSULATION PREFORMS FOR SAGING COOLED TUBES IN HEATING FACILITIES
US4848055A (en) * 1988-05-09 1989-07-18 A. P. Green Industries, Inc. Center mounted insulating module for a furnace
EP0345147A1 (en) * 1988-06-02 1989-12-06 Stein Heurtey Roll for handling siderurgical products transported inside a furnace

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685069A1 (en) * 1991-12-14 1993-06-18 Loi Ind Ofenanlagen ROLL FOR ROLL OVENS AND RELATING METHOD.
EP0633815A1 (en) * 1992-02-24 1995-01-18 Bricmanage Inc Improvement in an insulated furnace roller and method of manufacture.
EP0633815A4 (en) * 1992-02-24 1995-02-01 Bricmanage, Inc. Improvement in an insulated furnace roller and method of manufacture.
EP0642652A1 (en) * 1993-03-24 1995-03-15 Italimpianti Of America, Inc. Rolls for high temperature roller hearth furnaces
EP0642652A4 (en) * 1993-03-24 1995-06-07 Italimpianti America Rolls for high temperature roller hearth furnaces.
EP0851195A1 (en) * 1996-12-27 1998-07-01 Kubota Corporation Tire roller for transporting slabs
US5918719A (en) * 1996-12-27 1999-07-06 Kubota Corporation Tire roller for transporting slabs
KR100439256B1 (en) * 1996-12-27 2004-08-09 가부시끼 가이샤 구보다 Tire Roller for Slab Carrying
DE19923114A1 (en) * 1999-05-19 2000-11-23 Johannes Stark Roll used for a heat treatment furnace of a steel or rolling mill has an inner insulation cylinder formed of several insulating rings coaxially arranged next to each other
DE19923114C2 (en) * 1999-05-19 2001-12-13 Johannes Stark Roll for a heat treatment furnace
DE102017208710A1 (en) 2016-09-27 2018-03-29 Sms Group Gmbh Coolable furnace roll and method of operating such
WO2018059940A1 (en) 2016-09-27 2018-04-05 Sms Group Gmbh Coolable furnace roller and method for operating such

Also Published As

Publication number Publication date
DE4025935A1 (en) 1992-02-20
ATE105929T1 (en) 1994-06-15
DE59101656D1 (en) 1994-06-23
US5143684A (en) 1992-09-01
EP0471218B1 (en) 1994-05-18

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