EP1685356B1 - Oven system provided with a displaceable sluice chamber - Google Patents

Oven system provided with a displaceable sluice chamber Download PDF

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Publication number
EP1685356B1
EP1685356B1 EP04797928A EP04797928A EP1685356B1 EP 1685356 B1 EP1685356 B1 EP 1685356B1 EP 04797928 A EP04797928 A EP 04797928A EP 04797928 A EP04797928 A EP 04797928A EP 1685356 B1 EP1685356 B1 EP 1685356B1
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EP
European Patent Office
Prior art keywords
furnace
lock chamber
charging opening
conveying unit
oven
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Not-in-force
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EP04797928A
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German (de)
French (fr)
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EP1685356A1 (en
Inventor
Glynn Jones
Willi Johnen
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Otto Junker GmbH
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Otto Junker GmbH
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Publication of EP1685356A1 publication Critical patent/EP1685356A1/en
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Publication of EP1685356B1 publication Critical patent/EP1685356B1/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38—Arrangements of devices for charging
    • 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
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0059—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising tracks, e.g. rails and wagon
    • F27D2003/006—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising tracks, e.g. rails and wagon with a return track
    • 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
    • F27D2099/0078—Means to minimize the leakage of the furnace atmosphere during charging or discharging
    • F27D2099/008—Using an air-lock

Definitions

  • the invention relates to kiln system for the thermal treatment of elongated material, in particular a roller hearth furnace, with a feed unit feeding the goods and the treated second conveying unit, with a gas-tight closable feed opening and a feed opening opposite, gas-tight closable discharge opening furnace and with a first lock chamber connecting the oven with the conveyor unit, a gas-tight closable feed opening and a second lock chamber having a gas-tight closable feed opening, wherein the first lock chamber receives the good via the feed opening in batches and into the oven and the second lock chambers the treated material from the Ausschleust oven, the lock chambers are designed as vacuum chambers.
  • the object is achieved in a furnace system according to the preamble of claim 1, characterized in that the furnace is arranged outside the conveying direction of the conveyor units and the first lock chamber from a first position in which it receives the fed from the redesigneinheiL good, in a second Position in which it docks with its feed opening to the feed opening of the furnace gastight, and the second lock chamber from a first position in which it docks with its feed opening to the discharge opening of the oven gas-tight and receives the unloaded from the furnace GuL, in a second position in which it feeds the good of the second conveyor unit, is displaced.
  • the first lock chamber characterized in that the first lock chamber according to the teachings of the invention is not arranged stationary, but between a first position in which it receives the supplied from the conveyor unit Good, and a second position in which they gas-tight with their feed opening to the feed opening of the furnace docked and the good in the oven einschleust, is relocatable, it is no longer necessary to linearly arrange the conveyor unit and the oven in a row.
  • a parallel offset or even angled arrangement of the furnace relative to the conveyor unit is possible, which leads in each case to a significant reduction in the length of the system.
  • the furnace is arranged alongside the conveyor unit and the lock chamber is displaceable essentially perpendicular to the conveying direction, wherein the material is introduced into the oven in a direction opposite to the conveying direction.
  • the plant length can be shortened at least the length of the furnace.
  • a longitudinal arrangement of the furnace next to the conveyor unit also causes only a minimal broadening of the system width.
  • the lock chamber is mounted on a slidable on rails carriage.
  • the furnace has a discharge opening opposite, gas-tight sealable discharge opening, a second lock chamber with a gas-tight closable feed opening and a second conveyor unit, the second lock chamber from a first position in which it docks with its feed opening to the discharge opening of the oven and gas-tight receives the unloaded from the furnace Good, in a second position in which it feeds the good of the second conveyor unit, is displaced.
  • the compact furnace system according to the invention can be operated in the flow by the good introduced through the first lock chamber in the oven via the feed opening and after completion of the Heat treatment discharged through the discharge from the oven and transported through the second conveyor unit.
  • the furnace may have a heating section and a cooling section arranged behind it, wherein the material introduced into the furnace is first heat-treated, subsequently cooled in a controlled manner and discharged via the discharge opening after completion of this process step.
  • the lock chamber is designed as a vacuum chamber.
  • the lock chamber is first evacuated and then subsequently filled before opening the feed opening of the furnace with the protective gas also present in the oven.
  • the furnace expediently in front of its feed opening a docking unit, via which the lock chamber can be evacuated and filled with protective gas.
  • the charging opening of the furnace can be closed in a gastight manner by a pulling door
  • the furnace system of Fig. 1 comprises a trained as a roller hearth furnace, symmetrically constructed furnace 1 for heat treatment of elongated material, in particular of copper pipes B, with a heating section 1a and a cooling section 1b.
  • the copper tube 8 passes through the oven from left to right, so is first heat treated and then cooled controlled.
  • the furnace 1 Before the heating section 1a, the furnace 1 has an inlet space 1c with a feed opening 1d, which is preferably closed gas-tight by a pulling door 1g. According to that symmetrical structure of the furnace 1, this has in the passage direction behind the cooling section 1b an outlet space 1e with a discharge opening 1f, which as well as the inlet space 1c preferably by a pull door 1h gas-tight is closed.
  • a docking unit 2, 3 In front of the feed opening 1d and behind the feed opening 1f of the furnace 1, a docking unit 2, 3 is arranged, to which a lock chamber 4, 5 can dock. Both docking units 2, 3 are each connected via a nozzle 2a, 3a to a device, not shown, for separate evacuation and filling of the docking units 2, 3 with protective gas.
  • the lock chambers 4, 5 are designed as vacuum chambers and arranged in the direction of passage before or behind the furnace. Both lock chambers 4, 5 each have a gas-tight closable feed opening 4a, 5a, via which they can dock on the docking units 2, 3 assigned to them.
  • the lock chambers are each mounted on a carriage 4b, 5b, which in turn is mounted on rails 4c, 5c. By moving the respective carriage 4b, 5b on the rails 4c, 5c, the lock chambers 4, 5 can each be moved from a position I, in which they are docked to the docking units 2, 3 of the furnace 1, into a position II in which they respectively are arranged at the end of a conveyor unit designed as a roller table 6, 7 are moved.
  • the furnace outlet-side lock chamber 5 is also in the position I and is connected to the furnace 1 via the docking unit 3 and the open train door 1h.
  • the copper tube 8 is first heat-treated in the heating section 1a and finally cooled again controlled in the cooling section 1b. Subsequently, it is transported through the discharge space 1e and the docking unit 3 into the lock chamber 5 via the charging opening 5a thereof.
  • the lock chamber 5 is moved slightly away from the docking unit 3 according to the double arrow 5 * by means of a drive, not shown, and then moved by a further drive, not shown on the rails 5c from the position I to the position II.
  • the finished heat-treated and cooled copper pipe 8 is transported from the open lock chamber 5 on the roller table 7 according to the direction of the arrow 7 * and fed to a storage or further processing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electronic Switches (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)

Abstract

The invention relates to an oven system for thermally treating an elongate product, in particular, a roller hearth furnace. Said system comprises a conveying unit which is used to transport the product, an oven comprising a gas-proof, closeable charging door and a sluice chamber which comprises a gas-proof closeable charging door and which is connected to the oven by means of the conveying unit. The sluice receives the product in a charged manner via the charging door and allows it to pass into the oven. The oven system is characterised in that the oven is arranged outside the conveying device of the conveying unit and the sluice chamber can be moved from a first position, wherein it receives the product transported by the conveying unit, to a second position, wherein it is docked, by means of the charging opening, in a gas-proof manner to the charging opening of the oven.

Description

Die Erfindung betrifft Ofensystem zur thermischen Behandlung von langgestrecktem Gut, insbesondere einen Rollenherdofen, mit einer das Gut zuführenden Fördereinheit und einer das behandelte Gut weiter transportierenden zweiten Fördereinheit, mit einem eine gasdicht verschließbare Beschickungsöffnung und eine der Beschickungsöffnung gegenüberliegende, gasdicht verschließbare Entladeöffnung aufweisenden Ofen und mit einer den Ofen mit der Fördereinheit verbindenden, eine gasdicht verschließbare Beschickungsöffnung aufweisenden ersten Schleusenkammer und einer eine gasdicht verschließbare Beschickungsöffnung aufweisenden zweiten Schleusenkammer, wobei die erste Schleusenkammer das Gut über die Beschickungsöffnung chargenweise aufnimmt und in den Ofen einschleust und die zweite Schleusenkammern das behandelte Gut aus dem Ofen ausschleust, wobei die Schleusenkammern als Vakuumkammern ausgebildet sind.The invention relates to kiln system for the thermal treatment of elongated material, in particular a roller hearth furnace, with a feed unit feeding the goods and the treated second conveying unit, with a gas-tight closable feed opening and a feed opening opposite, gas-tight closable discharge opening furnace and with a first lock chamber connecting the oven with the conveyor unit, a gas-tight closable feed opening and a second lock chamber having a gas-tight closable feed opening, wherein the first lock chamber receives the good via the feed opening in batches and into the oven and the second lock chambers the treated material from the Ausschleust oven, the lock chambers are designed as vacuum chambers.

Bei den aus dem Stand der Technik bekannten Ofensystemen ( US 3 778 221 A ) sind die das zu behandelnde Gut transportierende Fördereinheiten, die Schleusenkammer und der Ofen in einer Linie angeordnet. Insbesondere bei der Behandlung von besonders langgestrecktem Cut, wie z.B. Stahl- oder Kupferröhren ergeben sich dadurch extreme Anlagenlängen, da nicht nur der Ofen selbst, sondern auch die in Linie angeordnete Schleusenkammer das langgestreckte vollständig aufnehmen muss. Derartige Anlagen müssen in entsprechend ausgelegten Maschinenhallen installiert werden, was mit erheblichen Investitionskosten verbunden ist.In the furnace systems known from the prior art ( US 3 778 221 A ) are the transporting the material to be treated conveyor units, the lock chamber and the furnace arranged in a line. In particular, in the treatment of particularly elongated cut, such as steel or copper tubes resulting in extreme plant lengths, since not only the furnace itself, but also arranged in line lock chamber must fully absorb the elongated. Such systems must be installed in appropriately designed machine shops be installed, which is associated with significant investment costs.

Es ist daher Aufgabe der Erfindung, ein Ofensystem für langgestrecktes Gut zu schaffen, welches sich im Vergleich zum Stand der Technik durch eine kompakte Bauweise auszeichnet.It is therefore an object of the invention to provide a furnace system for elongated good, which is characterized in comparison to the prior art by a compact design.

Die Aufgabe wird erfindungsgemäß bei einem Ofensystem gemäß dem Oberbegriff des Patentanspruches 1 dadurch gelöst, dass der Ofen außerhalb der Förderrichtung der Fördereinheiten angeordnet ist und die erste Schleusenkammer aus einer ersten Position, in der sie das ihr von der FördereinheiL zugeführte Gut aufnimmt, in eine zweite Position, in der sie mit ihrer Beschickungsöffnung an die Beschickungsöffnung des Ofens gasdicht andockt, verlagerbar ist und die zweite Schleusenkammer aus einer ersten Position, in der sie mit ihrer Beschickungsöffnung an die Entladeöffnung des Ofens gasdicht andockt und das aus dem Ofen entladene GuL aufnimmt, in eine zweite Position, in der sie das Gut der zweiten Fördereinheit zuführt, verlagerbar ist.The object is achieved in a furnace system according to the preamble of claim 1, characterized in that the furnace is arranged outside the conveying direction of the conveyor units and the first lock chamber from a first position in which it receives the fed from the FördereinheiL good, in a second Position in which it docks with its feed opening to the feed opening of the furnace gastight, and the second lock chamber from a first position in which it docks with its feed opening to the discharge opening of the oven gas-tight and receives the unloaded from the furnace GuL, in a second position in which it feeds the good of the second conveyor unit, is displaced.

Dadurch, dass die erste Schleusenkammer gemäß der Lehre der Erfindung nicht ortsfest angeordnet, sondern zwischen einer ersten Position, in der sie das ihr von der Fördereinheit zugeführte Gut aufnimmt, und einer zweiten Position, in der sie mit ihrer Beschickungsöffnung an die Beschickungsöffnung des Ofens gasdicht andockt und das Gut in den Ofen einschleust, verlagerbar ist, ist es nicht mehr notwendig, die FördereinheiL und den Ofen linear hintereinander anzuordnen. Je nach der jeweils gewählten Kinematik der Bewegung der Schleusenkammer, beispielsweise Drehung oder Verschiebung oder eine kombinierte Bewegung, ist eine parallel versetzte oder auch gewinkelte Anordnung des Ofens relativ zur Fördereinheit möglich, was in jedem Falle zu einer signifikanten Verkürzung der Anlagenlänge führt.Characterized in that the first lock chamber according to the teachings of the invention is not arranged stationary, but between a first position in which it receives the supplied from the conveyor unit Good, and a second position in which they gas-tight with their feed opening to the feed opening of the furnace docked and the good in the oven einschleust, is relocatable, it is no longer necessary to linearly arrange the conveyor unit and the oven in a row. Depending on the selected kinematics of the Movement of the lock chamber, such as rotation or displacement or a combined movement, a parallel offset or even angled arrangement of the furnace relative to the conveyor unit is possible, which leads in each case to a significant reduction in the length of the system.

So ist nach einer vorteilhaften Ausgestaltung der Erfindung der Ofen längsseits neben der Fördereinheit angeordnet und die Schleusenkammer im wesentlichen senkrecht zur Förderrichtung verschiebbar, wobei das Gut in einer zur Förderrichtung entgegengesetzten Richtung in den Ofen eingeschleust wird. Durch diese Anordnung kann die Anlagenlänge zumindest um die Länge des Ofens verkürzt werden. Eine längsseitige Anordnung des Ofens neben der Fördereinheit bewirkt zudem eine nur minimale Verbreiterung der Anlagebreite. Zweckmäßigerweise ist dazu die Schleusenkammer auf einem auf Schienen verschiebbaren Schlitten gelagert.Thus, according to an advantageous embodiment of the invention, the furnace is arranged alongside the conveyor unit and the lock chamber is displaceable essentially perpendicular to the conveying direction, wherein the material is introduced into the oven in a direction opposite to the conveying direction. By this arrangement, the plant length can be shortened at least the length of the furnace. A longitudinal arrangement of the furnace next to the conveyor unit also causes only a minimal broadening of the system width. Conveniently, the lock chamber is mounted on a slidable on rails carriage.

Erfindungsgemäß weist der Ofen eine der Beschickungsöffnung gegenüberliegende, gasdicht verschließbare Entladeöffnung, eine zweite Schleusenkammer mit einer gasdicht verschließbaren Beschickungsöffnung sowie eine zweite Fördereinheit auf, wobei die zweite Schleusenkammer aus einer ersten Position, in der sie mit ihrer Beschickungsöffnung an die Entladeöffnung des Ofens gasdicht andockt und das aus dem Ofen entladene Gut aufnimmt, in eine zweite Position, in der sie das Gut der zweiten Fördereinheit zuführt, verlagerbar ist. Mittels dieser Anordnung kann das erfindungsgemäße kompakte Ofensystem im Durchlauf betrieben werden, indem das Gut durch die erste Schleusenkammer in den Ofen über dessen Beschickungsöffnung eingeschleust und nach Abschluß der Wärmebehandlung über die Entladeöffnung aus dem Ofen ausgeschleust und durch die zweite Fördereinheit weiter transportiert wird.According to the invention, the furnace has a discharge opening opposite, gas-tight sealable discharge opening, a second lock chamber with a gas-tight closable feed opening and a second conveyor unit, the second lock chamber from a first position in which it docks with its feed opening to the discharge opening of the oven and gas-tight receives the unloaded from the furnace Good, in a second position in which it feeds the good of the second conveyor unit, is displaced. By means of this arrangement, the compact furnace system according to the invention can be operated in the flow by the good introduced through the first lock chamber in the oven via the feed opening and after completion of the Heat treatment discharged through the discharge from the oven and transported through the second conveyor unit.

Bei dieser Konstellation kann der Ofen eine Heizstrecke und eine dahinter angeordnete Kühlstrecke aufweisen, wobei das in den Ofen eingeschleuste Gut zunächst wärmebehandelt, anschließend kontrolliert abgekühlt und nach Abschluss dieses Prozessschrittes über die Entladeöffnung ausgeschleust wird.In this constellation, the furnace may have a heating section and a cooling section arranged behind it, wherein the material introduced into the furnace is first heat-treated, subsequently cooled in a controlled manner and discharged via the discharge opening after completion of this process step.

Eine besonders effektive Trennung der Schutzgasatmosphäre im Ofen von der Umgebungsluft lässt sich dadurch erreichen, dass die Schleusenkammer als Vakuumkammer ausgebildet ist. Dies bedeutet, dass die Schleusenkammer zunächst evakuiert wird und dann anschließend vor dem Öffnen der Beschickungsöffnung des Ofens mit dem im Ofen ebenfalls vorhandenen Schutzgas gefüllt wird. Dazu weist der Ofen zweckmäßigerweise vor seiner Beschickungsöffnung eine Andockeinheit auf, über welche die Schleusenkammer evakuierbar und mit Schutzgas befüllbar ist.A particularly effective separation of the protective gas atmosphere in the furnace from the ambient air can be achieved in that the lock chamber is designed as a vacuum chamber. This means that the lock chamber is first evacuated and then subsequently filled before opening the feed opening of the furnace with the protective gas also present in the oven. For this purpose, the furnace expediently in front of its feed opening a docking unit, via which the lock chamber can be evacuated and filled with protective gas.

Schließlich ist nach einer weiteren Ausgestaltung der Erfindung vorgesehen, dass die Beschickungsöffnung des Ofens durch eine Zugtür gasdicht verschließbar ist,Finally, according to a further embodiment of the invention, it is provided that the charging opening of the furnace can be closed in a gastight manner by a pulling door,

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen:

Fig. 1
ein Ofensystem für eine Durchlaufbehandlung mit zwei beweglichen Schleusenkammern in einer seitlichen Schnittansicht und
Fig. 2
das Ofensystem aus Fig. 1 in Draufsicht.
In the following the invention will be explained in more detail with reference to a drawing showing only one embodiment. Show it:
Fig. 1
a furnace system for a continuous treatment with two movable lock chambers in a side sectional view and
Fig. 2
the furnace system off Fig. 1 in plan view.

Das Ofensystem der Fig. 1 umfasst einen als Rollenherdofen ausgebildeten, symmetrisch aufgebauten Ofen 1 zur Wärmebehandlung von langgestrecktem Gut, insbesondere von Kupferrohren B, mit einer Heizstrecke 1a und einer Kühlstrecke 1b. Wie in Fig. 2 zu sehen, durchläuft das Kupferrohr 8 den Ofen von links nach rechts, wird also zunächst wärmebehandelt und anschließend kontrolliert abgekühlt. Vor der Heizstrecke 1a weist der Ofen 1 einen Einlaufraum 1c mit einer Beschickungsöffnung 1d auf, die vorzugsweise durch eine Zugtür 1g gasdicht verschließbar ist. Entsprechend dem symmetrischen Aufbau des Ofens 1 weist dieser in Durchlaufrichtung hinter der Kühlstrecke 1b einen Auslaufraum 1e mit einer Entladeöffnung 1f auf , welche ebenso wie der Einlaufraum 1c vorzugsweise durch eine Zugtür 1h gasdicht verschließbar ist.The furnace system of Fig. 1 comprises a trained as a roller hearth furnace, symmetrically constructed furnace 1 for heat treatment of elongated material, in particular of copper pipes B, with a heating section 1a and a cooling section 1b. As in Fig. 2 can be seen, the copper tube 8 passes through the oven from left to right, so is first heat treated and then cooled controlled. Before the heating section 1a, the furnace 1 has an inlet space 1c with a feed opening 1d, which is preferably closed gas-tight by a pulling door 1g. According to that symmetrical structure of the furnace 1, this has in the passage direction behind the cooling section 1b an outlet space 1e with a discharge opening 1f, which as well as the inlet space 1c preferably by a pull door 1h gas-tight is closed.

Vor der Beschickungsöffnung 1d und hinter der Beschickungsöffnung 1f des Ofens 1 ist jeweils eine Andockeinheit 2, 3 angeordnet, an welche eine Schleusenkammer 4, 5 andocken kann. Beide Andockeinheiten 2, 3 sind jeweils über einen Stutzen 2a, 3a an eine nicht dargestellte Vorrichtung zum getrennten Evakuieren und Befüllen der Andockeinheiten 2, 3 mit Schutzgas angeschlossen.In front of the feed opening 1d and behind the feed opening 1f of the furnace 1, a docking unit 2, 3 is arranged, to which a lock chamber 4, 5 can dock. Both docking units 2, 3 are each connected via a nozzle 2a, 3a to a device, not shown, for separate evacuation and filling of the docking units 2, 3 with protective gas.

Die Schleusenkammern 4, 5 sind als Vakuumkammern ausgebildet und in Durchlaufrichtung gesehen vor bzw. hinter dem Ofen angeordnet. Sie dienen zur Einschleusung bzw. Ausschleusung der Kupferrohre 8 in bzw. aus dem Ofen 1. Beide Schleusenkammern 4, 5 weisen jeweils eine gasdicht verschließbare Beschickungsöffnung 4a, 5a auf, über welche sie an die ihnen zugeordneten Andockeinheiten 2, 3 andocken können. Die Schleusenkammern sind jeweils auf einem Schlitten 4b, 5b gelagert, der seinerseits auf Schienen 4c, 5c gelagert ist. Durch Verfahren des jeweiligen Schlittens 4b, 5b auf den Schienen 4c, 5c können die Schleusenkammern 4, 5 jeweils aus einer Position I, in der sie an die Andockeinheiten 2, 3 des Ofens 1 angedockt sind, in eine Position II, in der sie jeweils an dem Ende einer als Rollentisch 6, 7 ausgebildeten Fördereinheit angeordnet sind, bewegt werden.The lock chambers 4, 5 are designed as vacuum chambers and arranged in the direction of passage before or behind the furnace. Both lock chambers 4, 5 each have a gas-tight closable feed opening 4a, 5a, via which they can dock on the docking units 2, 3 assigned to them. The lock chambers are each mounted on a carriage 4b, 5b, which in turn is mounted on rails 4c, 5c. By moving the respective carriage 4b, 5b on the rails 4c, 5c, the lock chambers 4, 5 can each be moved from a position I, in which they are docked to the docking units 2, 3 of the furnace 1, into a position II in which they respectively are arranged at the end of a conveyor unit designed as a roller table 6, 7 are moved.

Die Funktionsweise des Ofensystems ist die folgende:

  • Zunächst wird das Kupferrohr 8 über den Rollentisch 6 in Pfeilrichtung 6* bewegt. Dabei befindet sich die Schleusenkammer 4 in der Position II, so dass das Kupferrohr 8 in die Schleusenkammer 4 eingeführt werden kann. Anschließend wird die Schleusenkammer 4 zusammen mit dem Kupferrohr 8 auf dem Schlitten 4b durch einen nicht dargestellten Motorantrieb in die Position I bewegt, in der sie an die Andockeinheit 2 des Ofens 1 angedockt werden kann. Sodann wird sie durch einen weiteren nicht dargestellten Antrieb entsprechend dem Doppelpfeil 4* soweit in Richtung des Ofens 1 bewegt, dass sie an die Andockeinheit 2 stirnseitig andockt und dabei eine gasdichte Verbindung zur Andockeinheit 2 aufbaut. Im nächsten Schritt wird die Andockeinheit 2 und damit die mit ihr verbundene Schleusenkammer 4 über den Stutzen 2a evakuiert und im folgenden mit Schutzgas befüllt.
The operation of the furnace system is the following:
  • First, the copper tube 8 is moved over the roller table 6 in the direction of arrow 6 *. In this case, the lock chamber 4 is in the position II, so that the copper pipe 8 can be inserted into the lock chamber 4. Subsequently, the lock chamber 4 is moved together with the copper tube 8 on the carriage 4b by a motor drive, not shown, in the position I, in which it can be docked to the docking unit 2 of the furnace 1. It is then moved by a further drive, not shown, according to the double arrow 4 * in the direction of the furnace 1 that it docks on the docking unit 2 at the front and thereby builds a gas-tight connection to the docking unit 2. In the next step, the docking unit 2 and thus the associated lock chamber 4 is evacuated via the nozzle 2a and filled with protective gas below.

Sodann wird durch Öffnen der Zugtür 1g eine Verbindung von der Andockeinheit 2 zum Einlaufraum 1c des Ofens 1 hergestellt und das Kupferrohr 8 aus der Schleusenkammer 4 in den Ofen 1 entsprechend der Pfeilrichtung 1* eingeschleust. Dabei befindet sich die ofenauslaufseitige Schleusenkammer 5 ebenfalls in der Position I und ist mit dem Ofen 1 über die Andockeinheit 3 und die geöffnete Zugtür 1h verbunden. Im Ofen wird das Kupferrohr 8 zunächst in der Heizstrecke 1a wärmebehandelt und abschließend in der Kühlstrecke 1b kontrolliert wieder angekühlt. Anschließend wird es durch den Auslaufraum 1e und die Andockeinheit 3 in die Schleusenkammer 5 über deren Beschickungsöffnung 5a transportiert. Sobald das Kupferrohr 8 die Entladeöffnung 1f des Ofens vollständig passiert hat, wird diese durch die Zugtür 1h gasdicht geschlossen, so dass keine Umgebungsluft in den Ofen 1 des Ofens eindringen kann.Then, by opening the pulling door 1g, a connection is made from the docking unit 2 to the inlet space 1c of the furnace 1 and the copper pipe 8 is introduced from the lock chamber 4 into the furnace 1 in the direction of the arrow 1 *. In this case, the furnace outlet-side lock chamber 5 is also in the position I and is connected to the furnace 1 via the docking unit 3 and the open train door 1h. In the oven, the copper tube 8 is first heat-treated in the heating section 1a and finally cooled again controlled in the cooling section 1b. Subsequently, it is transported through the discharge space 1e and the docking unit 3 into the lock chamber 5 via the charging opening 5a thereof. Once the copper tube 8, the discharge opening 1f of the furnace completely has happened, this is closed gas-tight by the train door 1h, so that no ambient air can penetrate into the furnace 1 of the furnace.

Im Folgeschritt wird die Schleusenkammer 5 entsprechend dem Doppelpfeil 5* mittels eines nicht dargestellten Antriebes von der Andockeinheit 3 geringfügig wegbewegt und anschließend durch einen weiteren nicht dargestellten Antrieb über die Schienen 5c aus der Position I in die Position II bewegt. Dort wird das fertig wärmebehandelte und abgekühlte Kupferrohr 8 aus der offenen Schleusenkammer 5 über den Rollentisch 7 entsprechend der Pfeilrichtung 7* weiter transportiert und so einer Lagerung oder weiteren Bearbeitung zugeführt.In the following step, the lock chamber 5 is moved slightly away from the docking unit 3 according to the double arrow 5 * by means of a drive, not shown, and then moved by a further drive, not shown on the rails 5c from the position I to the position II. There, the finished heat-treated and cooled copper pipe 8 is transported from the open lock chamber 5 on the roller table 7 according to the direction of the arrow 7 * and fed to a storage or further processing.

Claims (6)

  1. A furnace system for the thermal treatment of elongated material (8), especially a roller hearth furnace, comprising a conveying unit (6) which supplies the material (8), and a second conveying unit (7) which further conveys the treated material (8), comprising a furnace (1) having a gastight-closable charging opening (1d) and a gastight-closable discharge opening (1f) opposite to the charging opening (1d) and comprising a first lock chamber (4) having a gastight-closable charging opening (4a), which connects the furnace (1) to the conveying unit (6) and a second lock chamber (5) with a gastight-closable charging opening (5a), wherein the first lock chamber (4) receives the material (8) in batches via the charging opening (4a) and feeds it into the furnace (1), wherein the second lock chamber (5) discharges the treated material (8) from the furnace (1), and wherein both lock chambers (4, 5) are constructed as vacuum chambers, characterised in that the furnace (1) is arranged outside the conveying direction (6*, 7*) of the conveying units (6, 7) and the first lock chamber (4) is displaceable from a first position (II) in which it receives the material (8) supplied to it from the conveying unit (6), into a second position (I) in which it docks with its charging opening (4a) onto the charging opening (1d) of the furnace (1) in a gastight fashion, and the second lock chamber (5) is displaceable from a first position (I) in which it docks with its charging opening (5a) onto the discharging opening (1f) of the furnace (1) in a gastight fashion and receives the material (8) discharged from the furnace (1), into a second position (II) in which it supplies the material (8) to the second conveying unit (7).
  2. The furnace system according to claim 1, characterised in that the furnace (1) is arranged alongside adjacent to the conveying unit (6) and the lock chamber (4) is substantially slidable perpendicular to the conveying direction (6*), wherein the material (8) is fed into the furnace (1) in a direction (1*) opposite to the conveying direction (6*).
  3. The furnace system according to claim 2, characterised in that the lock chamber (4) is mounted on a carriage (4b) which can be slid on rails (4c) .
  4. The furnace system according to claim 1, characterised in that the furnace (1) has a heating zone (1a) and a cooling section (1b) arranged therebehind.
  5. The furnace system according to claim 1, characterised in that before its charging opening (1d) the furnace (1) has a docking unit (2) onto which the vacuum chamber (4) docks and via which the lock chamber (4) can be evacuated and filled with protective gas.
  6. The furnace system according to any one of claims 1 to 5, characterised in that the charging opening (1d) of the furnace (1) can be closed in a gastight fashion by a pull door (1g).
EP04797928A 2003-11-18 2004-11-16 Oven system provided with a displaceable sluice chamber Not-in-force EP1685356B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10353947A DE10353947A1 (en) 2003-11-18 2003-11-18 Furnace system with movable lock chamber
PCT/EP2004/012980 WO2005050113A1 (en) 2003-11-18 2004-11-16 Oven system provided with a displaceable sluice chamber

Publications (2)

Publication Number Publication Date
EP1685356A1 EP1685356A1 (en) 2006-08-02
EP1685356B1 true EP1685356B1 (en) 2011-02-16

Family

ID=34609101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797928A Not-in-force EP1685356B1 (en) 2003-11-18 2004-11-16 Oven system provided with a displaceable sluice chamber

Country Status (7)

Country Link
EP (1) EP1685356B1 (en)
JP (1) JP2007511734A (en)
CN (1) CN100580358C (en)
AT (1) ATE498809T1 (en)
DE (2) DE10353947A1 (en)
TW (1) TWI321212B (en)
WO (1) WO2005050113A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020040A1 (en) * 2007-10-22 2009-04-23 Otto Junker Gmbh Furnace system i.e. roller hearth furnace system, for convective thermal treatment of copper flat coil, has radial ventilator arranged at blowing out side of heating unit in U-shaped flow channel system surrounding channel cross-section
CN114262777A (en) * 2022-02-25 2022-04-01 天津紫荆科技有限公司 Continuous vacuum atmosphere heat treatment equipment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7132962U (en) * 1972-11-23 Aeg-Elotherm Gmbh Transportable continuous furnace with protective gas atmosphere
US3778221A (en) * 1969-02-26 1973-12-11 Allegheny Ludlum Ind Inc Annealing furnace and method for its operation
US4079921A (en) * 1976-06-18 1978-03-21 Lee Wilson Engineering Company, Inc. Apparatus and method for continuous treatment of metal coils or the like
DE3420147C1 (en) * 1984-05-30 1985-07-18 Keller Ofenbau GmbH, 4530 Ibbenbüren Lock on a tunnel furnace for baking ceramic products
DE8914635U1 (en) * 1989-12-08 1990-01-25 Cafrey Plastik GmbH, 2810 Verden Shut-off valve for a container filled with liquid
DE4122386A1 (en) * 1991-07-06 1993-01-07 Iva Industrieoefen Verfahren A Vacuum rotary hearth furnace - with combined entry and exit lock, used for rapid cooling

Also Published As

Publication number Publication date
CN100580358C (en) 2010-01-13
TW200523516A (en) 2005-07-16
DE502004012207D1 (en) 2011-03-31
EP1685356A1 (en) 2006-08-02
TWI321212B (en) 2010-03-01
ATE498809T1 (en) 2011-03-15
JP2007511734A (en) 2007-05-10
CN1879000A (en) 2006-12-13
DE10353947A1 (en) 2005-06-30
WO2005050113A1 (en) 2005-06-02

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