EP0443201A1 - Industrial furnace - Google Patents

Industrial furnace Download PDF

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Publication number
EP0443201A1
EP0443201A1 EP90125530A EP90125530A EP0443201A1 EP 0443201 A1 EP0443201 A1 EP 0443201A1 EP 90125530 A EP90125530 A EP 90125530A EP 90125530 A EP90125530 A EP 90125530A EP 0443201 A1 EP0443201 A1 EP 0443201A1
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EP
European Patent Office
Prior art keywords
apron
furnace
industrial furnace
hood
seal
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
EP90125530A
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German (de)
French (fr)
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EP0443201B1 (en
Inventor
Boquslaw Dipl.-Ing. Gorecki
Lothar Wenzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Loi Essen Industrieofenanlagen GmbH
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Loi Essen Industrieofenanlagen GmbH
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Application filed by Loi Essen Industrieofenanlagen GmbH filed Critical Loi Essen Industrieofenanlagen GmbH
Priority to AT90125530T priority Critical patent/ATE100864T1/en
Publication of EP0443201A1 publication Critical patent/EP0443201A1/en
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Publication of EP0443201B1 publication Critical patent/EP0443201B1/en
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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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/673—Details, accessories, or equipment peculiar to bell-type furnaces
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/002—Details of the installations, e.g. fume conduits or seals

Definitions

  • the invention relates to an industrial furnace with a first furnace part and a second furnace part, which are movable relative to one another, and with a heat-resistant seal arranged between the two furnace parts.
  • the seal ensures that the furnace atmosphere does not come into contact with the outside atmosphere and thus remains protected, while at the same time avoiding heat losses.
  • a seal that meets these requirements consists of a cord made of glass fiber material. However, it must be accepted that unevenness between the two furnace parts can only be compensated for incompletely.
  • the invention is accordingly based on the object of equipping the industrial furnace of the type mentioned at the outset with a seal which easily compensates for unevenness between the two furnace parts, and even such a considerable extent.
  • the industrial furnace according to the invention is characterized in that the seal has a vertical apron made of elastic material, which is attached with its upper edge to the first furnace part and carries a weight load at its lower edge.
  • the apron In the sealing position, the apron rests with its lower edge on the second part of the oven. By appropriate choice of its vertical extension, it can compensate for unevennesses of practically any size.
  • the tolerance of the distance between the two furnace parts in the sealing position is also completely uncritical.
  • the weight load determines the contact pressure of the seal and always sets this constant as soon as the distance between the two oven parts falls below the vertical extent of the apron. Another significant advantage is that the sealing areas of the two furnace parts can be reworked to a considerable extent.
  • the seal is suitable for those applications in which the two furnace parts can be moved horizontally to one another. Since the contact pressure of the seal remains constant, the wear that occurs during the horizontal movements can be easily controlled.
  • the main field of application of the invention is, however, where the two furnace parts can be moved vertically to one another. Accordingly, the invention is in a further development characterized in that the apron is attached with its upper edge to a heating hood of a bell annealer. In the case of bell annealers, the sum of the advantages listed above is particularly effective.
  • the invention provides that the apron with its upper edge engages under a flange of the heating hood and is braced against the flange by a ring.
  • the space between the flange and the assigned surface of the second furnace part thus remains free. Injuries to the seal due to the furnace parts coming too close are excluded.
  • This arrangement can also be assembled by a single person.
  • the weight of the apron can be designed differently. For example, individual weights arranged along the apron are possible. However, it is more advantageous that the weight load is formed by a weight that extends over the length of the apron. The latter ensures that the apron is placed very evenly on the second part of the oven.
  • the weight determines the contact pressure of the apron, its size is selected according to the requirements, namely the applied pressure difference. It may be sufficient to thicken the apron material at the bottom. The entire range of requirements, however, is covered by the fact that the weight consists of a hose filled with granular material.
  • a particularly simple fastening results from the fact that the apron is turned over at the lower edge to accommodate the weight load.
  • This type of fastening has the further advantage that it is ensured that the elastic material of the apron can also fulfill the sealing function over its entire length.
  • the apron preferably consists of a double layer of the elastic material.
  • the edges of the double layer can be connected at a common fastening point to the first furnace part, that is to say preferably to the underside of the heating hood flange.
  • the industrial furnace has a first furnace part 1 and a second furnace part 2. These can be moved relative to one another, in the present case in the horizontal direction.
  • a vertical apron 3 made of elastic material. This is attached with its upper edge to the first furnace part 1, while it carries a weight load 4 at its lower edge. The latter ensures that the lower edge of the apron 3 is constantly resting on the second oven part 2.
  • the weight load 4 in the present case consists of blocks 5, which lie opposite one another and are connected to the apron 3 at a longitudinal distance from one another.
  • the apron is able to compensate for very significant bumps.
  • the contact pressure of the seal is determined solely by the weight load 4, and that is adapted to the predetermined pressure difference.
  • the embodiment according to FIG. 2 is a hood annealing furnace, the first furnace part 1 belonging to the heating hood, while the second furnace part 2 is assigned to the protective hood.
  • the two parts therefore move in the vertical direction relative to one another and assume their closed position in the position shown.
  • the first furnace part 1 is designed as a flange, and the apron 3 has a deflection at its upper edge so that it can reach under the flange.
  • a ring 6 braces the upper edge of the apron against the flange the heating mantle. In this way, the seal can be assembled by a single person.
  • the weight load 4 is formed by a weight in the form of a tube 7, which extends over the length of the apron and which is filled with a granular material 8, here metal granules.
  • the apron 3 is turned over at its lower edge to accommodate and fasten the hose 7.
  • the apron 3 is able to compensate for very significant bumps. Furthermore, the contact pressure of the seal is determined solely by the weight load 4. Due to the folded-over lower edge, the apron 3 rests on the second furnace part 2 over a large area.
  • FIG. 2 clearly shows that the distance between the furnace parts 1 and 2 is anything but critical. The furnace part 2, namely the sealing surface of the protective hood, can therefore be reworked quite considerably. The service life of the seal is considerably longer than that of glass fiber cords.
  • FIG. 3 it is a hood annealing furnace, the heating hood here assuming a certain opening position with respect to the protective hood, so that the weight load 4 hangs on the apron 3 and pulls it smoothly downward.
  • the apron 3 here consists of a double layer of the elastic material, the edges of the double layer being connected to the first furnace part 1 at a common fastening point. The result is a robust, wear-resistant and overall simple construction.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Resistance Heating (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The industrial furnace is designed as a hood-type annealing furnace and has a first furnace part (1), namely a heating hood, and a second furnace part (2), namely a protective hood. The seal between these furnace parts is formed by an apron (3), the upper rim of which is fixed to the heating hood. The lower rim is folded over and encloses a weight load (4) consisting of a hose (7) filled with granular material (8). The weight load generates a constant compact pressure of the seal. The apron (3) is capable of smoothing out irregularities and compensating for a great variability of the distance between the furnace parts. <IMAGE>

Description

Die Erfindung betrifft einen Industrieofen mit einem ersten Ofenteil und einem zweiten Ofenteil, die relativ zueinander bewegbar sind, und mit einer zwischen den beiden Ofenteilen angeordneten hitzebeständigen Dichtung. Die Dichtung sorgt dafür, daß die Ofenatmosphäre nicht mit der Außenatmosphäre in Verbindung tritt und somit geschützt bleibt, wobei gleichzeitig Wärmeverluste vermieden werden.The invention relates to an industrial furnace with a first furnace part and a second furnace part, which are movable relative to one another, and with a heat-resistant seal arranged between the two furnace parts. The seal ensures that the furnace atmosphere does not come into contact with the outside atmosphere and thus remains protected, while at the same time avoiding heat losses.

Eine Dichtung, die diesen Anforderungen genügt, besteht aus einer Schnur aus Glasfasermaterial. Dabei muß allerdings in Kauf genommen werden, daß Unebenheiten zwischen den beiden Ofenteilen nur unvollkommen ausgeglichen werden können.A seal that meets these requirements consists of a cord made of glass fiber material. However, it must be accepted that unevenness between the two furnace parts can only be compensated for incompletely.

Der Erfindung liegt dementsprechend die Aufgabe zugrunde, den Industrieofen der eingangs genannten Art mit einer Dichtung auszurüsten, die Unebenheiten zwischen den beiden Ofenteil, und zwar auch solche erheblichen Ausmaßes, ohne weiteres ausgleicht.The invention is accordingly based on the object of equipping the industrial furnace of the type mentioned at the outset with a seal which easily compensates for unevenness between the two furnace parts, and even such a considerable extent.

Zur Lösung dieser Aufgabe ist der Industrieofen nach der Erfindung dadurch gekennzeichnet, daß die Dichtung eine vertikale Schürze aus elastischem Material aufweist, die mit ihrem oberen Rand am ersten Ofenteil befestigt ist und an ihrem unteren Rand eine Gewichtsbelastung trägt.To achieve this object, the industrial furnace according to the invention is characterized in that the seal has a vertical apron made of elastic material, which is attached with its upper edge to the first furnace part and carries a weight load at its lower edge.

In der Abdichtstellung ruht die Schürze mit ihrem unteren Rand auf dem zweiten Ofenteil. Sie kann dabei durch entsprechende Wahl ihrer vertikalen Erstreckung Unebenheiten praktisch beliebiger Größe ausgleichen. Auch wird die Toleranz des Abstandes zwischen den beiden Ofenteilen in der Dichtposition völlig unkritisch. Die Gewichtsbelastung bestimmt den Auflagedruck der Dichtung und stellt diesen immer konstant ein, sobald der Abstand zwischen den beiden Ofenteilen die vertikale Erstreckung der Schürze unterschreitet. Als wesentlicher weiterer Vorteil ist zu nennen, daß die Dichtbereiche der beiden Ofenteile in erheblichem Maße nachgearbeitet werden können.In the sealing position, the apron rests with its lower edge on the second part of the oven. By appropriate choice of its vertical extension, it can compensate for unevennesses of practically any size. The tolerance of the distance between the two furnace parts in the sealing position is also completely uncritical. The weight load determines the contact pressure of the seal and always sets this constant as soon as the distance between the two oven parts falls below the vertical extent of the apron. Another significant advantage is that the sealing areas of the two furnace parts can be reworked to a considerable extent.

Schließlich sei erwähnt, daß sich die Standzeit der erfindungsgemäßen Dichtungsanordnung gegenüber der konventionellen Schnur erheblich verlängert.Finally, it should be mentioned that the service life of the sealing arrangement according to the invention is considerably extended compared to the conventional cord.

Die Dichtung eignet sich für solche Anwendungsfälle, bei denen die beiden Ofenteile horizontal zueinander bewegbar sind. Da der Auflagedruck der Dichtung konstant bleibt, läßt sich der bei den Horizontalbewegungen auftretende Verschleiß ohne weiteres beherrschen.The seal is suitable for those applications in which the two furnace parts can be moved horizontally to one another. Since the contact pressure of the seal remains constant, the wear that occurs during the horizontal movements can be easily controlled.

Das hauptsächliche Anwendungsgebiet der Erfindung liegt jedoch dort, wo die beiden Ofenteile vertikal zueinander bewegbar sind. Dementsprechend ist die Erfindung in wesentlicher Weiterbildung dadurch gekennzeichnet, daß die Schürze mit ihrem oberen Rand an einer Heizhaube eines Haubenglühofens befestigt ist. Bei Haubenglühöfen wird die Summe der oben aufgeführten Vorteile in besonderem Ausmaße wirksam.The main field of application of the invention is, however, where the two furnace parts can be moved vertically to one another. Accordingly, the invention is in a further development characterized in that the apron is attached with its upper edge to a heating hood of a bell annealer. In the case of bell annealers, the sum of the advantages listed above is particularly effective.

Dabei sieht die Erfindung vor, daß die Schürze mit ihrem oberen Rand einen Flansch der Heizhaube untergreift und von einem Ring gegen den Flansch verspannt ist. Der Raum zwischen dem Flansch und der zugeordneten Fläche des zweiten Ofenteils bleibt also frei. Verletzungen der Dichtung durch zu starke Annäherung der Ofenteile sind ausgeschlossen. Auch kann diese Anordnung von einer einzigen Person montiert werden.The invention provides that the apron with its upper edge engages under a flange of the heating hood and is braced against the flange by a ring. The space between the flange and the assigned surface of the second furnace part thus remains free. Injuries to the seal due to the furnace parts coming too close are excluded. This arrangement can also be assembled by a single person.

Die Gewichtsbelastung der Schürze kann unterschiedlich ausgebildet werden. Möglich sind beispielsweise einzelne, entlang der Schürze angeordnete Gewichte. Vorteilhafter ist es hingegen, daß die Gewichtsbelastung von einem sich über die Länge der Schürze erstrecken Gewicht gebildet wird. Letzteres sorgt für eine sehr gleichmäßige Auflage der Schürze auf dem zweiten Ofenteil.The weight of the apron can be designed differently. For example, individual weights arranged along the apron are possible. However, it is more advantageous that the weight load is formed by a weight that extends over the length of the apron. The latter ensures that the apron is placed very evenly on the second part of the oven.

Da das Gewicht den Auflagedruck der Schürze bestimmt, wird seine Größe entsprechend den Anforderungen, nämlich der angelegten Druckdifferenz gewählt. Unter Umständen kann es ausreichen, daß Material der Schürze am unteren Rand zu verdicken. Die gesamte Bedarfsbreite hingegen wird dadurch abgedeckt, daß das Gewicht aus einem mit körnigem Material gefüllten Schlauch besteht.Since the weight determines the contact pressure of the apron, its size is selected according to the requirements, namely the applied pressure difference. It may be sufficient to thicken the apron material at the bottom. The entire range of requirements, however, is covered by the fact that the weight consists of a hose filled with granular material.

Eine besonders einfache Befestigung ergibt sich dadurch, daß die Schürze zur Aufnahme der Gewichtsbelastung am unteren Rand umgeschlagen ist. Diese Art der Befestigung bringt den weiteren Vorteil mit sich, daß sichergestellt wird, daß das elastische Material der Schürze über deren gesamter Länge die Dichtfunktion auch erfüllen kann.A particularly simple fastening results from the fact that the apron is turned over at the lower edge to accommodate the weight load. This type of fastening has the further advantage that it is ensured that the elastic material of the apron can also fulfill the sealing function over its entire length.

Dabei besteht die Schürze vorzugsweise aus einer Doppellage des elastischen Materials.The apron preferably consists of a double layer of the elastic material.

Die Ränder der Doppellage können erfindungsgemäß an einer gemeinsamen Befestigungsstelle mit dem ersten Ofenteil, vorzugsweise also mit der Unterseite des Heizhaubenflansches, verbunden sein.According to the invention, the edges of the double layer can be connected at a common fastening point to the first furnace part, that is to say preferably to the underside of the heating hood flange.

Als erfindungswesentlich offenbart gelten auch solche Kombinationen der erfindungsgemäßen Merkmale, die von den vorstehend diskutierten Verknüpfungen abweichen.Combinations of the features according to the invention that differ from the links discussed above are also considered to be disclosed as essential to the invention.

Die Erfindung wird im folgenden anhand bevorzugter Ausführungsbeispiele im Zusammenhang mit der beiliegenden Zeichnung näher erläutert. Die Zeichnung zeigt in:

Fig. 1
einen schematischen Schnitt durch den Dichtungsbereich eines Industrieofens nach einer ersten Ausführungsform;
Fig. 2
eine abgewandelte Ausführungsform in einer Darstellung entsprechend Fig. 1;
Fig. 3
eine weitere abgewandelte Ausführungsform in einer Darstellung entsprechend Fig. 1 und 2, jedoch in geöffneter Stellung.
The invention is explained in more detail below on the basis of preferred exemplary embodiments in conjunction with the accompanying drawing. The drawing shows in:
Fig. 1
a schematic section through the sealing area of an industrial furnace according to a first embodiment;
Fig. 2
a modified embodiment in a representation corresponding to FIG. 1;
Fig. 3
a further modified embodiment in a representation corresponding to FIGS. 1 and 2, but in the open position.

Nach Figur 1 weist der Industrieofen einen ersten Ofenteil 1 und einen zweiten Ofenteil 2 auf. Diese sind relativ zueinander bewegbar, und zwar im vorliegenden Fall in horizontaler Richtung. Zwischen den beiden Ofenteilen 1 und 2 befindet sich eine vertikale Schürze 3 aus elastischem Material. Diese ist mit ihrem oberen Rand am ersten Ofenteil 1 befestigt, während sie an ihrem unteren Rand eine Gewichtsbelastung 4 trägt. Letztere sorgt dafür, daß die Schürze 3 mit ihrem unteren Rand ständig auf dem zweiten Ofenteil 2 aufruht. Die Gewichtsbelastung 4 besteht im vorliegenden Fall aus Klötzen 5, die einander gegenüberliegen und in Längsabstand zueinander mit der Schürze 3 verbunden sind. Die Schürze ist in der Lage, ganz erhebliche Unebenheiten auszugleichen. Der Anpreßdruck der Dichtung wird einzig und alleine von der Gewichtsbelastung 4 bestimmt, und zwar angepaßt an die vorgegebene Druckdifferenz.According to FIG. 1, the industrial furnace has a first furnace part 1 and a second furnace part 2. These can be moved relative to one another, in the present case in the horizontal direction. Between the two oven parts 1 and 2 there is a vertical apron 3 made of elastic material. This is attached with its upper edge to the first furnace part 1, while it carries a weight load 4 at its lower edge. The latter ensures that the lower edge of the apron 3 is constantly resting on the second oven part 2. The weight load 4 in the present case consists of blocks 5, which lie opposite one another and are connected to the apron 3 at a longitudinal distance from one another. The apron is able to compensate for very significant bumps. The contact pressure of the seal is determined solely by the weight load 4, and that is adapted to the predetermined pressure difference.

Bei der Ausführungsform nach Figur 2 handelt es sich um einen Haubenglühofen, wobei der erste Ofenteil 1 zur Heizhaube gehört, während der zweite Ofenteil 2 der Schutzhaube zugeordnet ist. Die beiden Teile bewegen sich also in vertikaler Richtung relativ zueinander und nehmen in der dargestellten Position ihre Schließstellung ein. Der erste Ofenteil 1 ist als Flansch ausgebildet, und die Schürze 3 weist an ihrem oberen Rand eine Umlenkung auf, so daß sie den Flansch untergreifen kann. Ein Ring 6 verspannt den oberen Rand der Schürze gegen den Flansch der Heizhaube. Auf diese Weise läßt sich die Dichtung von einer einzelnen Person montieren.The embodiment according to FIG. 2 is a hood annealing furnace, the first furnace part 1 belonging to the heating hood, while the second furnace part 2 is assigned to the protective hood. The two parts therefore move in the vertical direction relative to one another and assume their closed position in the position shown. The first furnace part 1 is designed as a flange, and the apron 3 has a deflection at its upper edge so that it can reach under the flange. A ring 6 braces the upper edge of the apron against the flange the heating mantle. In this way, the seal can be assembled by a single person.

Die Gewichtsbelastung 4 wird im vorliegenden Fall von einem sich über die Länge der Schürze erstreckenden Gewicht in Form eines Schlauches 7 gebildet, der mit einem körnigen Material 8, hier Metallgranulat, gefüllt ist. Zur Aufnahme und Befestigung des Schlauches 7 ist die Schürze 3 an ihrem unteren Rand umgeschlagen.In the present case, the weight load 4 is formed by a weight in the form of a tube 7, which extends over the length of the apron and which is filled with a granular material 8, here metal granules. The apron 3 is turned over at its lower edge to accommodate and fasten the hose 7.

Auch im Falle von Fig. 2 ist die Schürze 3 in der Lage, ganz erhebliche Unebenheiten auszugleichen. Ferner wird auch der Anpreßdruck der Dichtung einzig und allein von der Gewichtsbelastung 4 bestimmt. Durch den umgeschlagenen unteren Rand ruht die Schürze 3 großflächig auf dem zweiten Ofenteil 2. Figur 2 zeigt deutlich, daß der Abstand zwischen den Ofenteilen 1 und 2 alles andere als kritisch ist. Der Ofenteil 2, nämlich die Dichtfläche der Schutzhaube, kann daher ganz beträchtlich nachgearbeitet werden. Die Standzeit der Dichtung liegt erheblich über der von Glasfaserschnüren.2, the apron 3 is able to compensate for very significant bumps. Furthermore, the contact pressure of the seal is determined solely by the weight load 4. Due to the folded-over lower edge, the apron 3 rests on the second furnace part 2 over a large area. FIG. 2 clearly shows that the distance between the furnace parts 1 and 2 is anything but critical. The furnace part 2, namely the sealing surface of the protective hood, can therefore be reworked quite considerably. The service life of the seal is considerably longer than that of glass fiber cords.

Auch im Falle von Figur 3 handelt es sich um einen Haubenglühofen, wobei hier die Heizhaube eine gewisse Öffnungsstellung gegenüber der Schutzhaube einnimmt, so daß die Gewichtsbelastung 4 an der Schürze 3 hängt und diese glatt nach unten zieht. Die Schürze 3 besteht hier aus einer Doppellage des elastischen Materials, wobei die Ränder der Doppellage an einer gemeinsamen Befestigungsstelle mit dem ersten Ofenteil 1 verbunden sind. Es ergibt sich eine robuste verschleißfeste und insgesamt einfache Konstruktion.In the case of FIG. 3, too, it is a hood annealing furnace, the heating hood here assuming a certain opening position with respect to the protective hood, so that the weight load 4 hangs on the apron 3 and pulls it smoothly downward. The apron 3 here consists of a double layer of the elastic material, the edges of the double layer being connected to the first furnace part 1 at a common fastening point. The result is a robust, wear-resistant and overall simple construction.

Im Rahmen der Erfindung sind ohne weiteres Abwandlungsmöglichkeiten gegeben. So kann auch bei der Ausführungsform nach Figur 3 die Schürze, wie in Figur 2, mittels des Ringes 6 gegen den Flansch der Heizhaube verspannt werden. Ferner besteht gemäß Figur 2 die Möglichkeit, den umgeschlagenen unteren Rand der Schürze 3 weiter nach oben zu ziehen und flach mit der abwärtsführenden Bahn der Schürze zu verbinden. Anstelle des Metallgranulats sind beliebige andere hitzebeständige körnige Materialien denkbar. Ferner besteht auch die Möglichkeit, anstelle des gefüllten Schlauches 7 eine starre oder elastische Stange zu verwenden. Unter Umständen genügt als Gewichtsbelastung bereits eine Verdickung oder ein Umschlag des unteren Randes 3 der Schürze. Ausschlaggebend ist die Druckdifferenz, der die Dichtung widerstehen muß.Within the scope of the invention, modification options are readily available. Thus, in the embodiment according to FIG. 3, the apron, as in FIG. 2, by means of the ring 6 against the flange of the heating mantle. According to FIG. 2, there is also the possibility of pulling the folded-over lower edge of the apron 3 further upwards and connecting it flat to the downward path of the apron. Instead of the metal granulate, any other heat-resistant granular materials are conceivable. Furthermore, it is also possible to use a rigid or elastic rod instead of the filled hose 7. Under certain circumstances, a thickening or a fold-over of the lower edge 3 of the apron is sufficient as a weight load. The decisive factor is the pressure difference that the seal must withstand.

Claims (8)

Industrieofen mit eine einem ersten Ofenteil (1) und einem zweiten Ofenteil (2), die relativ zueinander bewegbar sind, und mit einer zwischen den beiden Ofenteilen angeordneten hitzebeständigen Dichtung,
dadurch gekennzeichnet,
daß die Dichtung eine vertikale Schürze (3) aus elastischem Material aufweist, die mit ihrem oberen Rand am ersten Ofenteil (1) befestigt ist und an ihrem unteren Rand eine Gewichtsbelastung (4) trägt.Industrial furnace with a first furnace part (1) and a second furnace part (2), which can be moved relative to one another, and with a heat-resistant seal arranged between the two furnace parts,
characterized,
that the seal has a vertical apron (3) made of elastic material, which is attached with its upper edge to the first furnace part (1) and carries a weight load (4) at its lower edge. Industrieofen nach Anspruch 1, dadurch gekennzeichnet, daß die Schürze (3) mit ihrem oberen Rand an einer Heizhaube eines Haubenglühofens befestigt ist.Industrial furnace according to claim 1, characterized in that the apron (3) is attached with its upper edge to a heating hood of a hood annealing furnace. Industrieofen nach Anspruch 2, dadurch gekennzeichnet, daß die Schürze (3) mit ihrem oberen Rand einen Flansch der Heizhaube untergreift und von einem Ring (6) gegen den Flansch verspannt ist.Industrial furnace according to claim 2, characterized in that the apron (3) engages under a flange of the heating hood with its upper edge and is braced against the flange by a ring (6). Industrieofen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Gewichtsbelastung (4) von einem sich über die Länge der Schürze (3) erstreckenden Gewicht gebildet wird.Industrial furnace according to one of Claims 1 to 3, characterized in that the weight load (4) is formed by a weight which extends over the length of the apron (3). Industrieofen nach Anspruch 4, dadurch gekennzeichnet, daß das Gewicht aus einem mit körnigem Material gefüllten Schlauch (7) besteht.Industrial furnace according to claim 4, characterized in that the weight consists of a hose (7) filled with granular material. Industrieofen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Schürze (3) zur Aufnahme der Gewichtsbelastung (4) am unteren Rand umgeschlagen ist.Industrial furnace according to one of claims 1 to 5, characterized in that the apron (3) for absorbing the weight load (4) is turned over at the lower edge. Industrieofen nach Anspruch 6, dadurch gekennzeichnet, daß die Schürze (3) aus einer Doppellage des elastischen Materials besteht.Industrial furnace according to claim 6, characterized in that the apron (3) consists of a double layer of the elastic material consists. Industrieofen nach Anspruch 7, dadurch gekennzeichnet, daß die Ränder der Doppellage an einer gemeinsamen Befestigungsstelle mit dem ersten Ofenteil (1) verbunden sind.Industrial furnace according to claim 7, characterized in that the edges of the double layer are connected to the first furnace part (1) at a common fastening point.
EP90125530A 1990-02-23 1990-12-27 Industrial furnace Expired - Lifetime EP0443201B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90125530T ATE100864T1 (en) 1990-02-23 1990-12-27 INDUSTRIAL FURNACE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005653A DE4005653A1 (en) 1990-02-23 1990-02-23 Box annealing furnace - comprises heat-resistant elastic seal with its top end attached to upper oven part and its weighted lower end resting on lower oven part
DE4005653 1990-02-23

Publications (2)

Publication Number Publication Date
EP0443201A1 true EP0443201A1 (en) 1991-08-28
EP0443201B1 EP0443201B1 (en) 1994-01-26

Family

ID=6400773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125530A Expired - Lifetime EP0443201B1 (en) 1990-02-23 1990-12-27 Industrial furnace

Country Status (4)

Country Link
EP (1) EP0443201B1 (en)
AT (1) ATE100864T1 (en)
DE (2) DE4005653A1 (en)
ES (1) ES2050930T3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195565A1 (en) * 2000-03-15 2002-04-10 Nippon Steel Corporation Device and method for sealing pressure air blowing hood
DE10224020C1 (en) * 2002-05-23 2003-11-06 Volker Kirchhoff Appbau Gmbh Annealing hood, for the heat treatment of semi-finished products and workpieces, has a mantle hood to define a hollow zone for the protective gas with a butt weld to hold the structured flange at its lower edge
WO2014096543A1 (en) * 2012-12-20 2014-06-26 Outotec Oyj Sealing device
WO2015164959A1 (en) 2014-04-28 2015-11-05 Hatch Ltd. Sleeve seal for electric furnace electrodes
DE102016116645A1 (en) * 2016-09-06 2017-10-26 Outotec (Finland) Oy sinter cooler
EP3372935A1 (en) * 2017-03-08 2018-09-12 Paul Wurth S.A. Conveying device for bulk material
US10259084B2 (en) 2013-10-08 2019-04-16 Hatch Ltd. Furnace cooling system with thermally conductive joints between cooling elements

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
ATE181597T1 (en) * 1996-01-18 1999-07-15 Siemens Ag DISCHARGE DEVICE
US5915308A (en) * 1996-01-18 1999-06-29 Siemens Aktiengesellschaft Discharge apparatus

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FR842349A (en) * 1937-08-21 1939-06-09 Continuous heating oven
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195565A1 (en) * 2000-03-15 2002-04-10 Nippon Steel Corporation Device and method for sealing pressure air blowing hood
EP1195565A4 (en) * 2000-03-15 2004-02-18 Nippon Steel Corp Device and method for sealing pressure air blowing hood
DE10224020C1 (en) * 2002-05-23 2003-11-06 Volker Kirchhoff Appbau Gmbh Annealing hood, for the heat treatment of semi-finished products and workpieces, has a mantle hood to define a hollow zone for the protective gas with a butt weld to hold the structured flange at its lower edge
WO2014096543A1 (en) * 2012-12-20 2014-06-26 Outotec Oyj Sealing device
EA027779B1 (en) * 2012-12-20 2017-08-31 Оутотек (Финлэнд) Ой Sealing device
US10259084B2 (en) 2013-10-08 2019-04-16 Hatch Ltd. Furnace cooling system with thermally conductive joints between cooling elements
WO2015164959A1 (en) 2014-04-28 2015-11-05 Hatch Ltd. Sleeve seal for electric furnace electrodes
EP3137835A4 (en) * 2014-04-28 2018-01-17 Hatch Ltd. Sleeve seal for electric furnace electrodes
US10100930B2 (en) 2014-04-28 2018-10-16 Hatch Ltd. Sleeve seal for electric furnace electrodes
DE102016116645A1 (en) * 2016-09-06 2017-10-26 Outotec (Finland) Oy sinter cooler
EP3372935A1 (en) * 2017-03-08 2018-09-12 Paul Wurth S.A. Conveying device for bulk material
WO2018162507A1 (en) * 2017-03-08 2018-09-13 Paul Wurth S.A. Conveying device for bulk material

Also Published As

Publication number Publication date
DE4005653A1 (en) 1991-08-29
DE59004428D1 (en) 1994-03-10
ATE100864T1 (en) 1994-02-15
EP0443201B1 (en) 1994-01-26
ES2050930T3 (en) 1994-06-01

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