EP0184021A1 - Transport device to support the charge in a heat treatment kiln - Google Patents

Transport device to support the charge in a heat treatment kiln Download PDF

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Publication number
EP0184021A1
EP0184021A1 EP85114231A EP85114231A EP0184021A1 EP 0184021 A1 EP0184021 A1 EP 0184021A1 EP 85114231 A EP85114231 A EP 85114231A EP 85114231 A EP85114231 A EP 85114231A EP 0184021 A1 EP0184021 A1 EP 0184021A1
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EP
European Patent Office
Prior art keywords
support tube
rider
carrying device
side legs
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85114231A
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German (de)
French (fr)
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EP0184021B1 (en
Inventor
Helmut Dipl.-Ing. Heuss
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EON Ruhrgas AG
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Ruhrgas AG
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Publication date
Application filed by Ruhrgas AG filed Critical Ruhrgas AG
Priority to AT85114231T priority Critical patent/ATE40465T1/en
Publication of EP0184021A1 publication Critical patent/EP0184021A1/en
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Publication of EP0184021B1 publication Critical patent/EP0184021B1/en
Expired legal-status Critical Current

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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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/022—Skids
    • F27D3/024—Details of skids, e.g. riders

Definitions

  • the invention relates to a support device for supporting heated material in a heat treatment furnace, with a cooled support tube and at least one rider placed on it, on which the heated material can be supported in the furnace.
  • Supporting devices of this type are used primarily in push furnaces and walking beam furnaces in rolling mills.
  • the riders are shaped pieces, preferably made of highly heat-resistant cast.
  • the invention has for its object to ensure permanent and effective insulation of the cooled support tube in the rider area by special training of the rider of the support device mentioned.
  • the rider has a supporting web part and shell-shaped side legs formed on both sides thereof, which enclose part of the circumference of the cooled support tube at a distance, and that insulating chambers are formed between the support tube and the inner sides of the side legs.
  • the insulating chambers which are preferably filled with a heat-insulating material, for example with shaped pieces made of ceramic fiber material with high thermal resistance, are covered by the shell-shaped side legs and are therefore also protected against the ingress of liquid slag.
  • the heat-insulating material accommodated in the insulation chambers is practically protected on all sides during operation, secured against falling off and, due to its arrangement as an intermediate layer between the cooled support tube and the side legs surrounding it at a distance, has an excellent thermal insulation effect.
  • Inevitable thermal bridges from the supporting web part to the molded-on side legs can be minimized in a further development of the invention in that the transitions from the outside of the side legs to the supporting web part are provided with longitudinal fillets, which are filled with a highly heat-resistant and relatively poorly heat-conducting ceramic casting compound.
  • the rider consisting of the central web and the cup-shaped side legs is preferably designed as a one-piece casting.
  • the web part is designed as a central web and has projecting supporting ribs up and down over the attachment points of the symmetrically arranged side legs.
  • the rider's symmetrical design minimizes any thermal stress.
  • the cup-shaped side legs intended to hold holding pieces attached to the support tube.
  • the holding pieces that fix the riders in the longitudinal direction are thus included in the insulation and covered by the shell-shaped legs, as a result of which thermal bridges from the cooled support tube to the side legs are avoided.
  • the support device is further developed in that at least one T-profile is attached to the top of the support tube in such a way that its central web points upwards and runs parallel to the support tube axis, and that the rider has one to the central web of the T-profile Complementally designed downwardly open groove and a transverse web delimiting the groove and can be attached to the support tube via the T-profile.
  • the support device is further developed in that at least one T-profile is attached to the top of the support tube in such a way that its central web points upwards and runs parallel to the support tube axis, and that the rider has one to the central web of the T-profile Complementally designed downwardly open groove and a transverse web delimiting the groove and can be attached to the support tube via the T-profile.
  • cross-sectionally identical T-profiles are aligned in pairs at a distance one behind the other in a vertical plane and are firmly connected to the support tube and that the crossbar of the rider engages in the free space between the two T-profiles with slight play and two for receiving the The central webs of the T-profiles limited suitable grooves in the tab.
  • the T-profile which engages in the rider's grooves with the center bar, the center bar of which strikes the rider - cross bar, transmits all horizontal forces that act on the rider during transport of the heat to the support tube.
  • the rider 1 which is symmetrical with respect to a vertical longitudinal plane, has a supporting web part 10 that supports the heat material and two shell-shaped side legs 2 that extend approximately halfway up the web part 10 placed on a support tube 3.
  • the two side legs enclose at a distance the upper part of the circumference of the cooled support tube 3 and extend down to close to an insulation 8 which is inherent in the support tube.
  • Isolation chambers 4 are formed between the insides of the two shell-shaped legs 2, the lower support rib of the web part 10 and the adjacent section of the outer circumference of the support tube 3, in each of which insulation molded pieces 4 'made of ceramic fiber material are embedded (FIG. 1).
  • On the support tubes 3 welded laterally holding pieces 5 are arranged in recesses 6 of the side legs 2 of the rider 1. The spaces between the holding pieces 5 and the recess 6 are also filled with ceramic fibers, so that thermal bridges to the legs 2 and thus to the furnace interior are interrupted.
  • the transitions from the outer sides of the side legs 2 to the supporting web part 10 are provided with longitudinal grooves 9. These are filled with a suitable ceramic casting compound 9 '.
  • the insulation 4 ′ minimizes the heat transfer or heat losses via the outer surfaces of the two shell-shaped legs 2 to the cooled support tube 3 at the locations above the support tube insulation 8.
  • the exemplary embodiment of the carrying device shown in FIGS. 3 and 4 is particularly advantageous for round cooled carrying tubes 30.
  • the rider 11 is not placed directly on the support tube 30 via a support rib projecting downward toward the support tube, but indirectly via T-profiles 12a and 12b.
  • the two T-profiles are aligned along an axial plane 13 of the support tube 30 and welded onto the upper side thereof.
  • the central webs 14 of the T-profiles 12a and 12b point upwards, while their legs are arranged in a horizontal plane.
  • the associated tab 11 has two grooves 15a, 15b which are complementary to the central webs 14 of the T-profiles and which are delimited on the inside by a transverse web 16 (FIG. 4).
  • the width of the transverse web 16 is dimensioned such that it can be inserted with a certain amount of play into the gap between the T-profiles 12a and 12b or their central webs 14.
  • the rider 11 attached to the support tube 30 or the T-profiles 12a and 12b is therefore positively fixed by the groove walls and the crossbar 16 via the T-profiles on the support tube 30 such that horizontal forces from the rider 11 to the support tube 30 in all directions can be transferred.
  • the length of the T-profiles 12a and 12b is not critical, as is the position and arrangement of the crossbar 16 delimiting at least one groove 15 on the rider 11.
  • the crossbar 16 can also be arranged at the rider end and only limit one groove 15.
  • the profile section forming the legs of the T-profile fulfills a support function similar to that of the downward-pointing support rib of the rider 1 in FIG. 1.
  • the surface sections of the groove close to the groove that are supported on the legs of the T-profile Rider 11 lie in a horizontal plane and merge into the inner sides of the side legs 2 of the rider 11 which also delimit the insulating chambers 4 in this exemplary embodiment. Further out, the inner surfaces of the side legs 2 are curved in accordance with the shape of the support tube 30 or the heat-insulating material 4 ′ contained in the insulating chambers 4.
  • the insulating material 4 ′ contained in the insulating chambers 4 is preferably selected as a function of the surface temperature permissible for the material of the tab 11. If the surface temperature is to be largely the same, a material of high thermal insulation, e.g., in a cooler part of the furnace in which the support device is used, is used. the above ceramic fiber material is used, while in a hotter part of the furnace a material of lower thermal insulation, e.g. a light ceramic mass, a heavy refractory mass or fired ceramic parts can be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

Bei einer Tragvorrichtung zum Abstützen von Wärmgut in einem Stoß- oder Hubbalkenofen, mit einem gekühlten Tragrohr (3) und wenigstens einem diesem (3) aufgesetzten Reiter (1), auf dem das Wärmgut im Ofen abgestützt wird, ist zur Schaffung einer dauerhaften und wirksamen Isolierung des gekühlten Tragrohres im Reiterbereich vorgesehen, daß der Reiter (1) einen tragenden Mittelsteg (10) und an diesen beidseitig angeformte schalenförmige Seitenschenkel (2) aufweist, die einen Teil des Umfangs des gekühlten Tragrohres (3) mit Abstand umfassen, un daß zwischen dem Tragrohr (3) und den Inneneseiten der Seitenschenkel (2) Isolierkammern (4) gebildet sind, in denen ein wärmeisolierender Werkstoff (4') eingebaut ist.In the case of a supporting device for supporting heated material in a push or walking beam furnace, with a cooled supporting tube (3) and at least one rider (1) placed thereon (3), on which the heated material is supported in the furnace, a permanent and effective is to be created Insulation of the cooled support tube in the rider area provided that the rider (1) has a load-bearing central web (10) and shell-shaped side legs (2) formed on both sides thereof, which enclose part of the circumference of the cooled support tube (3) at a distance, so that between the support tube (3) and the inner sides of the side legs (2) insulating chambers (4) are formed, in which a heat-insulating material (4 ') is installed.

Description

Die Erfindung betrifft eine Tragvorrichtung zum Abstützen von Wärmgut in einem Wärmebehandlungsofen, mit einem gekühlten Tragrohr und wenigstens einem diesem aufgesetzten Reiter, auf dem das Wärmgut im Ofen abstützbar ist. Derartige Tragvorrichtungen kommen vor allem in Stoßöfen und Hubbalkenöfen in Walzwerken zum Einsatz. Die Reiter sind Formstücke vorzugsweise aus hochhitzebeständigem Guß.The invention relates to a support device for supporting heated material in a heat treatment furnace, with a cooled support tube and at least one rider placed on it, on which the heated material can be supported in the furnace. Supporting devices of this type are used primarily in push furnaces and walking beam furnaces in rolling mills. The riders are shaped pieces, preferably made of highly heat-resistant cast.

Bei bekannten Reiterkonstruktionen (DE-PS 22 31 223, DE-OS 27 05 745) ist es bisher nicht gelungen, eine auf Dauer haltbare Isolierung im Reiterbereich anzubringen. Die Folgen der mangelhaften Isolierung waren erhöhte Wärmeverluste und eine im Reiterbereich auf das Wärmgut wirkende relativ große Kühlschattenzone.In the case of known rider constructions (DE-PS 22 31 223, DE-OS 27 05 745) it has so far not been possible to provide insulation which is durable in the long term in the rider area. The consequences of the poor insulation were increased heat losses and a relatively large cooling shadow zone acting on the material to be heated in the rider area.

Der Erfindung liegt die Aufgabe zugrunde, durch besondere Ausbildung des Reiters der eingangs genannten Tragvorrichtung eine dauerhafte und wirksame Isolierung des gekühlten Tragrohres im Reiterbereich zu gewährleisten.The invention has for its object to ensure permanent and effective insulation of the cooled support tube in the rider area by special training of the rider of the support device mentioned.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Reiter einen tragenden Stegteil und an diesen beidseitig angeformte schalenförmige Seitenschenkel aufweist, die einen Teil des Umfangs des gekühlten Tragrohrs mit Abstand umfassen, und daß zwischen dem Tragrohr und den Innenseiten der Seitenschenkel Isolierkammern gebildet sind. Die Isolierkammern, die vorzugsweise mit einem wärmeisolierenden Werkstoff, z.B. mit Formstücken aus keramischem Fasermaterial hohen Wärmewiderstands verfüllt sind, werden von den schalenförmigen Seitenschenkel abgedeckt und daher auch gegen ein Eindringen flüssiger Schlacke geschützt. Durch geeignete Wahl des Wärmewiderstandes des Isolierwerkstoffs in den Isolierkammern zwischen dem gekühlten Tragrohr und den schalenförmigen Seitenschenkeln gleicht sich die Oberflächentemperatur der schalenförmigen Schenkel an diejenige des Wärmgutes an, so daß eine unerwünscht hohe Wärmeabfuhr durch Wärmestrahlung vom Wärmgut zum gekühlten Tragrohr vermieden wird.This object is achieved in that the rider has a supporting web part and shell-shaped side legs formed on both sides thereof, which enclose part of the circumference of the cooled support tube at a distance, and that insulating chambers are formed between the support tube and the inner sides of the side legs. The insulating chambers, which are preferably filled with a heat-insulating material, for example with shaped pieces made of ceramic fiber material with high thermal resistance, are covered by the shell-shaped side legs and are therefore also protected against the ingress of liquid slag. Through a suitable choice of the thermal resistance of the insulating material in the insulating chambers between the cooled support tube and the bowl-shaped side legs equalizes the surface temperature of the bowl-shaped legs to that of the heating material, so that an undesirably high heat dissipation by heat radiation from the heating material to the cooled support tube is avoided.

Der in den Isolierkammern aufgenommene wärmeisolierende Werkstoff ist im Betrieb praktisch allseits geschützt, vor Abfallen gesichert und entfaltet aufgrund seiner Anordnung als Zwischenlage zwischen dem gekühlten Tragrohr und den dieses mit Abstand umgebenden Seitenschenkeln eine ausgezeichnete thermische Isolationswirkung.The heat-insulating material accommodated in the insulation chambers is practically protected on all sides during operation, secured against falling off and, due to its arrangement as an intermediate layer between the cooled support tube and the side legs surrounding it at a distance, has an excellent thermal insulation effect.

Unvermeidbare Wärmebrücken vom tragenden Stegteil zu-den angeformten Seitenschenkeln können in Weiterbildung der Erfindung dadurch minimiert werden, daß die Übergänge von den Außenseiten der Seitenschenkel zum tragenden Stegteil mit Längskehlen versehen sind, die mit einer hoch-wärmebeständigen und relativ schlecht wärmeleitenden keramischen Gießmasse verfüllt sind.Inevitable thermal bridges from the supporting web part to the molded-on side legs can be minimized in a further development of the invention in that the transitions from the outside of the side legs to the supporting web part are provided with longitudinal fillets, which are filled with a highly heat-resistant and relatively poorly heat-conducting ceramic casting compound.

Der aus dem Mittelsteg und den schalenförmigen Seitenschenkeln bestehende Reiter ist vorzugsweise als einstückiges Gußteil ausgebildet.The rider consisting of the central web and the cup-shaped side legs is preferably designed as a one-piece casting.

Eine gute Wärmeabfuhr von der tragenden Fläche des Stegteils zum gekühlten Tragrohr unter Minimierung der Abstrahlungsverluste ergibt sich in Weiterbildung der Erfindung dadurch, daß der Stegteil als Mittelsteg ausgebildet ist und nach oben und unten über die Ansatzstellen der symmetrisch angeordneten Seitenschenkel vorspringende Stützrippen aufweist. Die symmetrische Ausbildung des Reiters minimiert etwaige Wärmespannungen.A good heat dissipation from the supporting surface of the web part to the cooled support tube while minimizing the radiation losses results in a further development of the invention in that the web part is designed as a central web and has projecting supporting ribs up and down over the attachment points of the symmetrically arranged side legs. The rider's symmetrical design minimizes any thermal stress.

Gemäß einem Ausführungsbeispiel der Erfindung sind an den Innenseiten der schalenförmigen Seitenschenkel Ausnehmungen zur Aufnahme von am Tragrohr befestigten Haltestücken vorgesehen. Die die Reiter in Längsrichtung fixierenden Haltestücke sind auf dieser Weise in die Isolierung einbezogen und von den schalenförmigen Schenkeln überdeckt, wodurch Wärmebrücken von dem gekühlten Tragrohr zu den Seitenschenkeln vermieden sind.According to one embodiment of the invention, there are recesses on the inner sides of the cup-shaped side legs intended to hold holding pieces attached to the support tube. The holding pieces that fix the riders in the longitudinal direction are thus included in the insulation and covered by the shell-shaped legs, as a result of which thermal bridges from the cooled support tube to the side legs are avoided.

Insbesondere bei Tragrohren runden Querschnitts ist die Tragvorrichtung dadurch weitergebildet, daß wenigstens ein T-Profil auf der Oberseite des Tragrohrs derart befestigt ist, daß sein Mittelsteg nach oben weist und zur Tragrohrachse parallel verläuft, und daß der Reiter mit einer zum Mittelsteg des T-Profils komplementär gestalteten nach unten offenen Nut und einem die Nut begrenzenden Quersteg versehen und über das T-Profil dem Tragrohr aufsetzbar ist. Auch bei dieser Ausführungsform ist eine gute Wärmeabfuhr von der tragenden Fläche des Reiter-Stegteils über das T-Profil zu dem mit letzterem in der Regel verschweißten gekühlten Tragrohr gewährleistet. Vorzugsweise ist dabei vorgesehen, daß querschnittsgleiche T-Profile paarweise mit Abstand hintereinander in einer Vertikalebene ausgerichtet und mit dem Tragrohr fest verbunden sind und daß der Quersteg des Reiters in den freien Raum zwischen den beiden T-Profilen mit leichtem Spiel eingreift und zwei zur Aufnahme der Mittelstege der T-Profile geeignete Nuten im Reiter begrenzt. Das in die Nuten des Reiters mit dem Mittelsteg eingreifende T-Profil, dessen Mittelsteg an dem Reiter--Quersteg anschlägt, überträgt alle horizontalen Kräfte, die beim Transport des Wärmeguts auf den Reiter einwirken, auf das Tragrohr.Particularly in the case of support tubes with a round cross section, the support device is further developed in that at least one T-profile is attached to the top of the support tube in such a way that its central web points upwards and runs parallel to the support tube axis, and that the rider has one to the central web of the T-profile Complementally designed downwardly open groove and a transverse web delimiting the groove and can be attached to the support tube via the T-profile. In this embodiment, too, good heat dissipation from the supporting surface of the rider web part via the T-profile to the cooled support tube, which is usually welded to the latter, is ensured. It is preferably provided that cross-sectionally identical T-profiles are aligned in pairs at a distance one behind the other in a vertical plane and are firmly connected to the support tube and that the crossbar of the rider engages in the free space between the two T-profiles with slight play and two for receiving the The central webs of the T-profiles limited suitable grooves in the tab. The T-profile, which engages in the rider's grooves with the center bar, the center bar of which strikes the rider - cross bar, transmits all horizontal forces that act on the rider during transport of the heat to the support tube.

Im folgenden wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. In der Zeichnung zeigen:

  • Fig. 1 eine Querschnittsansicht in Richtung der Pfeile I-I in Fig. 2;
  • Fig. 2 eine Draufsicht auf den Reiter gemäß Figur 1;
  • Fig. 3 eine Querschnittsansicht ähnlich derjenigen gemäß Figur 1 auf eine andere Ausführungsform der Tragvorrichtung in Zuordnung zu einem runden Tragrohr; und
  • Fig. 4 eine perspektivische Explosionsansicht, teilweise geschnitten, des Ausführungsbeispiels der Tragvorrichtung gemäß Figur 3.
The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawing. The drawing shows:
  • Figure 1 is a cross-sectional view in the direction of arrows II in Fig. 2.
  • FIG. 2 shows a top view of the rider according to FIG. 1;
  • 3 shows a cross-sectional view similar to that according to FIG. 1 of another embodiment of the support device in association with a round support tube; and
  • 4 shows an exploded perspective view, partly in section, of the exemplary embodiment of the carrying device according to FIG. 3.

Der bezüglich einer vertikalen Längsebene symmetrisch ausgebildete Reiter 1 hat einen das Wärmgut abstützenden tragenden Stegteil 10 und zwei etwa in halber Höhe des Stegteils 10 abgehende schalenförmige Seitenschenkel 2. Die von den Ansatzstellen der beiden schalenförmigen Seitenschenkel 2 nach unten vorspringende Stützrippe 10' des Stegteils 10 ist auf ein Tragrohr 3 aufgesetzt. Die beiden Seitenschenkel umfasssen mit Abstand den oberen Teil des Umfangs des gekühlten Tragrohrs 3 und reichen nach unten bis nahe an eine tragrohreigene Isolierung 8.The rider 1, which is symmetrical with respect to a vertical longitudinal plane, has a supporting web part 10 that supports the heat material and two shell-shaped side legs 2 that extend approximately halfway up the web part 10 placed on a support tube 3. The two side legs enclose at a distance the upper part of the circumference of the cooled support tube 3 and extend down to close to an insulation 8 which is inherent in the support tube.

Zwischen den Innenseiten der beiden schalenförmigen Schenkel 2, der unteren Stützrippe des Stegteils 10 und dem benachbarten Abschnitt des Außenumfangs des Tragrohrs 3 sind Isolierkammern 4 gebildet, in denen jeweils Isolierungsformstücke 4' aus keramischem Fasermaterial eingebettet sind (Fig. 1). An den Tragrohren 3 seitlich angeschweißte Haltestücke 5 sind in Ausnehmungen 6 der Seitenschenkel 2 des Reiters 1 angeordnet. Die Zwischenräume zwischen den Haltestücken 5 und der Ausnehmung 6 sind ebenfalls mit keramischen Fasern verfüllt, so daß Wärmebrücken zu den Schenkeln 2 und damit zum Ofeninnenraum unterbrochen sind.Isolation chambers 4 are formed between the insides of the two shell-shaped legs 2, the lower support rib of the web part 10 and the adjacent section of the outer circumference of the support tube 3, in each of which insulation molded pieces 4 'made of ceramic fiber material are embedded (FIG. 1). On the support tubes 3 welded laterally holding pieces 5 are arranged in recesses 6 of the side legs 2 of the rider 1. The spaces between the holding pieces 5 and the recess 6 are also filled with ceramic fibers, so that thermal bridges to the legs 2 and thus to the furnace interior are interrupted.

Die Übergänge von den Außenseiten der Seitenschenkel 2 zum tragenden Stegteil 10 sind mit Längskehlen 9 versehen. Diese sind mit einer geeigneten keramischen Gießmasse 9' verfüllt.The transitions from the outer sides of the side legs 2 to the supporting web part 10 are provided with longitudinal grooves 9. These are filled with a suitable ceramic casting compound 9 '.

Die Isolierung 4' sorgt, geschützt durch die schalenförmigen Schenkel 2, für eine Minimierung des Wärmeübergangs bzw. der Wärmeverluste über die Außenflächen der beiden schalenförmigen Schenkel 2 zum gekühlten Tragrohr 3 an den Stellen oberhalb der Tragrohrisolierung 8.Protected by the shell-shaped legs 2, the insulation 4 ′ minimizes the heat transfer or heat losses via the outer surfaces of the two shell-shaped legs 2 to the cooled support tube 3 at the locations above the support tube insulation 8.

Das in den Figuren 3 und 4 dargestellte Ausführungsbeispiel der Tragvorrichtung ist vor allem für runde gekühlte Tragrohre 30 von Vorteil. Der Reiter 11 ist dabei anders als bei dem zuvor erläuterten Ausführungsbeispiel nicht direkt über eine nach unten zum Tragrohr vorspringende Stützrippe, sondern mittelbar über T-Profile 12a und 12b dem Tragrohr 30 aufgesetzt. Die beiden T-Profile sind entlang einer Axialebene 13 des Tragrohrs 30 ausgerichtet und auf dessen Oberseite angeschweißt. Die Mittelstege 14 der T-Profile 12a und 12b weisen nach oben, während ihre Schenkel in einer Horizontalebene angeordnet sind.The exemplary embodiment of the carrying device shown in FIGS. 3 and 4 is particularly advantageous for round cooled carrying tubes 30. In contrast to the previously described exemplary embodiment, the rider 11 is not placed directly on the support tube 30 via a support rib projecting downward toward the support tube, but indirectly via T-profiles 12a and 12b. The two T-profiles are aligned along an axial plane 13 of the support tube 30 and welded onto the upper side thereof. The central webs 14 of the T-profiles 12a and 12b point upwards, while their legs are arranged in a horizontal plane.

Der zugehörige Reiter 11 hat zwei zu den Mittelstegen 14 der T-Profile komplementäre Nuten 15a, 15b die durch einen Quersteg 16 innen begrenzt sind (Fig. 4). Die Breite des Querstegs 16 ist so bemessen, daß er sich mit gewissem Spiel in die Lücke zwischen den T-Profilen 12a und 12b bzw. deren Mittelstegen 14 einfügen läßt. Der dem Tragrohr 30 bzw. den T-Profilen 12a und 12b aufgesetzte Reiter 11 ist daher durch die Nutwände und den Quersteg 16 über die T-Profile auf dem Tragrohr 30 formschlüssig derart festgelegt, daß Horizontalkräfte nach allen Richtungen vom Reiter 11 auf das Tragrohr 30 übertragen werden können.The associated tab 11 has two grooves 15a, 15b which are complementary to the central webs 14 of the T-profiles and which are delimited on the inside by a transverse web 16 (FIG. 4). The width of the transverse web 16 is dimensioned such that it can be inserted with a certain amount of play into the gap between the T-profiles 12a and 12b or their central webs 14. The rider 11 attached to the support tube 30 or the T-profiles 12a and 12b is therefore positively fixed by the groove walls and the crossbar 16 via the T-profiles on the support tube 30 such that horizontal forces from the rider 11 to the support tube 30 in all directions can be transferred.

Die Länge der T-Profile 12a und 12b ist unkritisch, ebenso die Lage und Anordnung des wenigstens eine Nut 15 begrenzenden Querstegs 16 am Reiter 11. Der Quersteg 16 kann auch am Reiterende angeordnet sein und nur eine Nut 15 begrenzen.The length of the T-profiles 12a and 12b is not critical, as is the position and arrangement of the crossbar 16 delimiting at least one groove 15 on the rider 11. The crossbar 16 can also be arranged at the rider end and only limit one groove 15.

Wie am besten in Figur 3 zu erkennen ist, erfüllt der die Schenkel des T-Profils bildende Profilabschnitt eine Stützfunktion ähnlich derjenigen der nach unten weisenden Stützrippe des Reiters 1 in Figur 1. Die sich auf den Schenkeln des T-Profils abstützenden, nutennahen Flächenabschnitte des Reiters 11 liegen in einer Horizontalebene und gehen in die auch bei diesem Ausführungsbeispiel die Isolierkammern 4 begrenzenden Innenseiten der Seitenschenkel 2 des Reiters 11 über. Weiter außen sind die Innenflächen der Seitenschenkel 2 entsprechend der Form des Tragrohrs 30 bzw. des in den Isolierkammern 4 enthaltenen wärmeisolierenden Werkstoffs 4' gekrümmt.As can best be seen in FIG. 3, the profile section forming the legs of the T-profile fulfills a support function similar to that of the downward-pointing support rib of the rider 1 in FIG. 1. The surface sections of the groove close to the groove that are supported on the legs of the T-profile Rider 11 lie in a horizontal plane and merge into the inner sides of the side legs 2 of the rider 11 which also delimit the insulating chambers 4 in this exemplary embodiment. Further out, the inner surfaces of the side legs 2 are curved in accordance with the shape of the support tube 30 or the heat-insulating material 4 ′ contained in the insulating chambers 4.

Das in den Isolierkammern 4 enthaltene Isoliermaterial 4' wird vorzugsweise in Abhängigkeit von der für das Material des Reiters 11 zulässigen Oberflächentemperatur ausgewählt. Wenn die Oberflächentemperatur weitgehend gleich sein soll, wird in einem kühleren Teil des Ofens, in welchem die Tragvorrichtung zum Einsatz kommt, ein Material hoher Wärmedämmung, z.B. das o.g. keramische Fasermaterial eingesetzt, während in einem heißeren Teil des Ofens ein Material geringerer Wärmedämmung, z.B. eine keramische Leichtmasse, eine schwere feuerfeste Masse oder gebrannte Keramikteile verwendet werden.The insulating material 4 ′ contained in the insulating chambers 4 is preferably selected as a function of the surface temperature permissible for the material of the tab 11. If the surface temperature is to be largely the same, a material of high thermal insulation, e.g., in a cooler part of the furnace in which the support device is used, is used. the above ceramic fiber material is used, while in a hotter part of the furnace a material of lower thermal insulation, e.g. a light ceramic mass, a heavy refractory mass or fired ceramic parts can be used.

Claims (12)

1. Tragvorrichtung zum Abstützen von Wärmgut in einem WärmebehandJungsofen, insbesondere einem Stoß- oder Hubbalkenofen, mit einem gekühlten Tragrohr und wenigstens einem diesem aufgesetzten Reiter, auf dem das Wärmgut im Ofen abstützbar ist,
dadurch gekennzeichnet,
daß der Reiter (1; 11) einen tragenden Stegteil (10) und an diesen beidseitig angeformte schalenförmige Seitenschenkel (2) aufweist, die einen Teil des Umfangs des gekühlten Tragrohrs (3; 30) mit Abstand umfassen, und daß zwischen dem Tragrohr (3; 30) und den Innenseiten der Seitenschenkel (2) Isolierkammern (4) gebildet sind.1. Carrying device for supporting heating material in a heat treatment furnace, in particular a push or walking beam furnace, with a cooled support tube and at least one rider placed on it, on which the heating material can be supported in the furnace,
characterized,
that the rider (1; 11) has a supporting web part (10) and shell-shaped side legs (2) formed on both sides thereof, which enclose a part of the circumference of the cooled support tube (3; 30) at a distance, and that between the support tube (3 ; 30) and the inside of the side legs (2) isolation chambers (4) are formed. 2. Tragvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in den Isolierkammern (4) ein wärmeisolierender Werkstoff (4') eingebaut ist.2. Carrier according to claim 1, characterized in that a heat-insulating material (4 ') is installed in the insulating chambers (4). 3. Tragvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß als wärmeisolierender Werkstoff Formstücke (4') aus keramischem Fasermaterial mit hohem Wärmewiderstand, keramischer Leichtmasse, schwerer feuerfester Masse oder gebrannten Keramikteilen vorgesehen sind.3. Carrying device according to claim 2, characterized in that fittings (4 ') made of ceramic fiber material with high thermal resistance, lightweight ceramic material, heavy refractory mass or fired ceramic parts are provided as the heat-insulating material. 4. Tragvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Übergänge von den Außenseiten der Seitenschenkel (2) zum tragenden Stegteil (10) mit Längskehlen (9) versehen sind, die mit einer keramischen Gießmasse (9') verfüllt sind.4. Carrying device according to one of claims 1 to 3, characterized in that the transitions from the outer sides of the side legs (2) to the supporting web part (10) are provided with longitudinal grooves (9) which are filled with a ceramic casting compound (9 ') . 5. Tragvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der aus Stegteil (10) und schalenförmigen Seitenschenkeln (2) bestehende Reiter (1) als einstückiges Gußteil ausbildet ist.5. Carrying device according to one of claims 1 to 4, characterized in that the web part (10) and bowl-shaped side legs (2) existing tab (1) is formed as a one-piece casting. 6. Tragvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Stegteil als Mittelsteg (10) ausgebildet ist und nach oben und unten über die Ansatzstellen der symmetrisch angeordneten Seitenschenkel (2) vorspringende Stützrippen (10') aufweist.6. Carrying device according to one of claims 1 to 5, characterized in that the web part is designed as a central web (10) and up and down over the attachment points of the symmetrically arranged side legs (2) projecting support ribs (10 '). 7. Tragvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß an den Innenseiten der schalenförmigen Seitenschenkel (2) Ausnehmungen (6) zur Aufnahme von an dem Tragrohr (3) befestigten Haltestücken (5) vorgesehen sind.7. Carrying device according to one of claims 1 to 4, characterized in that on the inner sides of the cup-shaped side legs (2) recesses (6) for receiving on the support tube (3) attached holding pieces (5) are provided. 8. Tragvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß wenigstens ein T-Profil (12a, 12b) auf der Oberseite des Tragrohrs (30) derart befestigt ist, daß sein Mittelsteg (14) nach oben weist und zur Tragrohrachse parallel verläuft, und daß der Reiter (11) wenigstens eine zum Mittelsteg (14) des T-Profils (12a, 12b) komplementär gestaltete nach unten offene Nut (15a, 15b) und einen die Nut begrenzenden Quersteg (16) aufweist und über das T-Profil dem Tragrohr (30) aufsetzbar ist.8. Carrying device according to one of claims 1 to 5, characterized in that at least one T-profile (12a, 12b) on the top of the support tube (30) is attached such that its central web (14) points upwards and parallel to the support tube axis and that the rider (11) has at least one groove (15a, 15b) which is designed to be complementary to the central web (14) of the T-profile (12a, 12b) and has a transverse web (16) delimiting the groove and via the T. -Profile the support tube (30) can be placed. 9. Tragvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß querschnittsgleiche T-Profile (12a, 12b) paarweise mit Abstand hintereinander in einer Vertikalebene (12a) ausgerichtet und mit dem Tragrohr (30) fest verbunden sind und daß der Quersteg (16) des Reiters (11) in den freien Raum zwischen den beiden T-Profilen (12a, 12b) mit leichtem Spiel eingreift und zwei zur Aufnahme der Mittelstege (14) der beiden T-Profile geeignete Nuten (15a, 15b) begrenzt.9. Carrying device according to claim 8, characterized in that cross-sectionally identical T-profiles (12a, 12b) aligned in pairs at a distance one behind the other in a vertical plane (12a) and with the support tube (30) and that the crossbar (16) of the rider (11) engages in the free space between the two T-profiles (12a, 12b) with slight play and limits two grooves (15a, 15b) suitable for receiving the central webs (14) of the two T-profiles. 10. Tragvorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß der Reiter (11) auf beiden Schenkeln des wenigstens einen T-Profils (12a, 12b) abgestützt ist.10. Carrying device according to claim 8 or 9, characterized in that the rider (11) is supported on both legs of the at least one T-profile (12a, 12b). 11. Tragvorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die sich auf den Schenkeln T-Profils abstützenden Flächenabschnitte des Reiters (11) in die Isolierkammern (4) begrenzende Innenseiten der Seitenschenkel (2) des Reiters übergehen.11. Carrying device according to claim 10, characterized in that the surface sections of the rider (11), which are supported on the legs of the T-profile, pass into the insulating chambers (4) delimiting inner sides of the side legs (2) of the rider. 12. Tragvorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Innenflächen der Seitenschenkel (2) des Reiters (11) in einem dem T-Profil (12a, 12b) benachbarten Abschnitt in einer Horizontalebene und weiter außen entsprechend dem runden Tragrohrquerschnitt gekrümmt verlaufen.12. Carrying device according to claim 11, characterized in that the inner surfaces of the side legs (2) of the rider (11) in a section adjacent to the T-profile (12a, 12b) extend in a horizontal plane and further out corresponding to the round cross-section of the support tube.
EP85114231A 1984-11-24 1985-11-08 Transport device to support the charge in a heat treatment kiln Expired EP0184021B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114231T ATE40465T1 (en) 1984-11-24 1985-11-08 SUPPORT DEVICE FOR SUPPORTING HEAT GOOD IN A HEAT TREATMENT FURNACE.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3442880 1984-11-24
DE3442880 1984-11-24
DE3524760 1985-07-11
DE19853524760 DE3524760A1 (en) 1984-11-24 1985-07-11 SUPPORT DEVICE FOR SUPPORTING WARM GOODS IN A HEAT TREATMENT OVEN

Publications (2)

Publication Number Publication Date
EP0184021A1 true EP0184021A1 (en) 1986-06-11
EP0184021B1 EP0184021B1 (en) 1989-01-25

Family

ID=25826802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114231A Expired EP0184021B1 (en) 1984-11-24 1985-11-08 Transport device to support the charge in a heat treatment kiln

Country Status (5)

Country Link
US (1) US4689009A (en)
EP (1) EP0184021B1 (en)
CN (1) CN85109552A (en)
DE (2) DE3524760A1 (en)
PL (1) PL148510B1 (en)

Cited By (2)

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EP0274807A1 (en) * 1987-01-16 1988-07-20 Sumitomo Metal Industries, Ltd. Heat-resisting supporting member
EP0439760A1 (en) * 1990-02-01 1991-08-07 LOI ESSEN Industrieofenanlagen GmbH Device for supporting heat-treated products in a reheating furnace

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KR880000601A (en) * 1986-06-10 1988-03-28 야기야스히로 Walking-Beam Furnace Skid-Beam
US4884967A (en) * 1988-09-26 1989-12-05 Combustion Concepts, Inc. Steel reheating furnace
DE8901064U1 (en) * 1989-02-01 1989-04-20 Reining Heisskühlung GmbH & Co. KG, 4330 Mülheim Attachment for coolant-flowing support tubes in heating furnaces, especially walking beam furnaces
US5288228A (en) * 1989-11-17 1994-02-22 Kubota Corporation Heat-resistant materials
US5257928A (en) * 1992-03-23 1993-11-02 Sse International Corporation Rider for furnace support
US5405264A (en) * 1992-04-23 1995-04-11 Loi Essen Industrieofenanlagen Gmbh Device for carrying a charge in a furnace
US5318076A (en) * 1992-11-13 1994-06-07 Bloom Engineering Company, Inc. Protective refractory locking mechanism
AUPN261595A0 (en) * 1995-04-28 1995-05-18 Advanced Materials Enterprise Pty Ltd Furnace rider bar assembly
DE19640173B4 (en) * 1996-09-28 2006-08-03 Loi Thermprocess Gmbh Carrying device for supporting feedstock in a heating furnace
US5921772A (en) * 1998-03-23 1999-07-13 C & H Alloy Skid Riders Company Two piece rider assembly
US7507087B2 (en) * 2005-12-07 2009-03-24 Ajax Tocco Manethermic Corporation Method and apparatus to provide continuous movement through a furnace
CN103217019A (en) * 2013-04-22 2013-07-24 赵桐斌 Ceramic fiber combined type binding block used for binding heating furnace water beam and binding method thereof

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DE2231223A1 (en) * 1972-06-26 1974-02-14 Salzgitter Peine Stahlwerke SLIDING RAIL FOR PUSH OVEN
FR2297390A1 (en) * 1975-01-11 1976-08-06 Krupp Ag Huettenwerke CARRIER TUBE FOR PUSHING OVENS OR MOBILE SINGLE OVENS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274807A1 (en) * 1987-01-16 1988-07-20 Sumitomo Metal Industries, Ltd. Heat-resisting supporting member
EP0439760A1 (en) * 1990-02-01 1991-08-07 LOI ESSEN Industrieofenanlagen GmbH Device for supporting heat-treated products in a reheating furnace
DE4002870A1 (en) * 1990-02-01 1991-08-08 Loi Ind Ofenanlagen DEVICE FOR SUPPORTING HEAT TREATMENT IN A WARMING OVEN

Also Published As

Publication number Publication date
EP0184021B1 (en) 1989-01-25
DE3567963D1 (en) 1989-03-02
PL148510B1 (en) 1989-10-31
PL256320A1 (en) 1987-01-26
DE3524760A1 (en) 1986-05-28
US4689009A (en) 1987-08-25
CN85109552A (en) 1986-06-10

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