WO2005050113A1 - 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
WO2005050113A1
WO2005050113A1 PCT/EP2004/012980 EP2004012980W WO2005050113A1 WO 2005050113 A1 WO2005050113 A1 WO 2005050113A1 EP 2004012980 W EP2004012980 W EP 2004012980W WO 2005050113 A1 WO2005050113 A1 WO 2005050113A1
Authority
WO
WIPO (PCT)
Prior art keywords
furnace
lock chamber
gas
loading opening
oven
Prior art date
Application number
PCT/EP2004/012980
Other languages
German (de)
French (fr)
Inventor
Glynn Jones
Willi Johnen
Original Assignee
Otto Junker Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Otto Junker Gmbh filed Critical Otto Junker Gmbh
Priority to EP04797928A priority Critical patent/EP1685356B1/en
Priority to AT04797928T priority patent/ATE498809T1/en
Priority to JP2006540292A priority patent/JP2007511734A/en
Priority to DE502004012207T priority patent/DE502004012207D1/en
Publication of WO2005050113A1 publication Critical patent/WO2005050113A1/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 furnace system for the thermal treatment of elongated material, in particular a roller hearth furnace, with a conveyor unit feeding the material, with an oven having a gas-tightly closable loading opening and with a lock chamber connecting the furnace with the conveyor unit and having a gas-tightly closable loading opening, the lock chamber collects the goods in batches through the loading opening and feeds them into the oven.
  • the conveyor units transporting the material to be treated, the lock chamber and the furnace are arranged in a line.
  • particularly elongated goods e.g. Steel or copper tubes result in extreme system lengths, since not only the furnace itself, but also the lock chamber arranged in a line must completely accommodate the elongated one.
  • Such systems have to be installed in appropriately designed machine shops, which is associated with considerable investment costs.
  • BESTATIGUNGSKOPIE The object is achieved according to the invention in a furnace system according to the preamble of patent claim 1 in that the furnace is arranged outside the conveying direction of the conveying unit and the lock chamber from a first position in which it receives the material fed to it by the conveying unit into a second Position in which it gas-tightly docks with its loading opening onto the loading opening of the furnace can be shifted.
  • the lock chamber according to the teaching of the invention is not arranged stationary, but between a first position in which it receives the material supplied to it by the conveyor unit and a second position in which it docks gas-tight with its loading opening to the loading opening of the furnace and the goods are fed into the furnace, can be moved, it is no longer necessary to arrange the conveyor unit and the furnace linearly one behind the other.
  • a parallel offset or angled arrangement of the furnace relative to the conveyor unit is possible, which in any case leads to a significant reduction in the system length.
  • the furnace is arranged alongside the conveyor unit and the lock chamber can be displaced essentially perpendicular to the conveying direction, the material being introduced into the furnace in a direction opposite to the conveying direction.
  • the length of the system can be shortened by at least the length of the furnace.
  • the lock chamber is expediently mounted on a slide that can be moved on rails.
  • the furnace has a gas-tight lockable discharge opening opposite the loading opening, a second lock chamber with a gas-tight lockable loading opening and a second conveyor unit, the second lock chamber moving from a first position in which it feeds to the loading opening Discharge opening of the furnace docks in a gas-tight manner and receives the goods unloaded from the furnace, into a second position in which it feeds the goods to the second conveyor unit.
  • the compact furnace system according to the invention can be operated continuously by introducing the material through the first lock chamber into the furnace via its loading opening and, after the heat treatment has ended, discharging it through the discharge opening and transporting it further through the second conveyor unit.
  • the furnace can have a heating section and a cooling section arranged behind it. Goods that have been introduced into the furnace are first heat-treated, then cooled in a controlled manner and then discharged via the unloading opening after this process step.
  • a particularly effective separation of the protective gas atmosphere in the furnace from the ambient air can be achieved by using the lock chamber as a vacuum chamber is trained.
  • the lock chamber is first evacuated and then filled with the protective gas that is also present in the furnace before opening the loading opening of the furnace.
  • the furnace expediently has a docking unit in front of its loading opening, via which the lock chamber can be evacuated and filled with protective gas.
  • the loading opening of the furnace can be closed gas-tight by a pull door.
  • Fig. 1 shows a furnace system for a continuous treatment with two movable lock chambers in a side sectional view
  • Fig. 2 shows the furnace system of Fig. 1 in plan view.
  • the furnace 1 comprises a symmetrically constructed furnace 1 designed as a roller hearth furnace for the heat treatment of elongated material, in particular copper pipes 8, with a heating section 1 a and a cooling section 1 b.
  • the copper tube 8 passes through the furnace from left to right, so it is first heat-treated and then cooled in a controlled manner.
  • the furnace 1 In front of the heating section 1 a, the furnace 1 has an inlet space 1 c with a loading opening 1 d, which can preferably be closed gas-tight by a pull door 1 g.
  • the furnace 1 has a symmetrical structure in the direction of flow behind the cooling section 1b, an outlet space 1e with an unloading opening 1f, which, like the inlet space 1c, can preferably be closed gas-tight by a draft door 1h.
  • a docking unit 2, 3, to which a lock chamber 4, 5 can dock, is arranged in front of the loading opening 1d and behind the loading opening 1f of the furnace 1. Both docking units 2, 3 are each connected via a connection piece 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, viewed in the direction of passage, are arranged in front of or behind the furnace. They are used for introducing or discharging the copper pipes 8 into or out of the furnace
  • Both lock chambers 4, 5 each have a gas-tight lockable loading opening 4a, 5a, via which they can be connected to the docking units assigned to them
  • the lock chambers are each mounted on a slide 4b, 5b, which in turn is mounted on rails 4c, 5c.
  • the lock chambers 4, 5 can each move from a position I, in which they are docked to the docking units 2, 3 of the furnace 1, to a position II, in which they each are arranged at the end of a conveyor unit designed as a roller table 6, 7.
  • the furnace system works as follows:
  • the copper tube 8 is moved over the roller table 6 in the direction of the arrow 6 *.
  • the lock chamber 4 is in position II, so that the copper tube 8 can be inserted into the lock chamber 4.
  • the lock chamber 4 is then moved together with the copper tube 8 on the carriage 4b by a motor drive (not shown) into position I, in which it can be docked onto the docking unit 2 of the furnace 1.
  • it is moved in the direction of the furnace 1 by a further drive (not shown) according to the double arrow 4 * to the extent that it docks onto the front of the docking unit 2 and thereby establishes a gas-tight connection to the docking unit 2.
  • the docking unit 2 and thus the lock chamber 4 connected to it is evacuated via the connection piece 2a and subsequently filled with protective gas.
  • the train door 1g by opening the train door 1g, a connection is established from the docking unit 2 to the inlet space 1c of the furnace 1 and the copper tube 8 is introduced from the lock chamber 4 into the furnace 1 in accordance with the direction of the arrow 1 *.
  • the lock outlet 5 on the furnace outlet side is also in position I and is connected to the furnace 1 via the docking unit 3 and the opened train door 1h.
  • the copper pipe 8 is first heat-treated in the heating section la and finally cooled again in a controlled manner in the cooling section 1b. It is then transported through the outlet space le and the docking unit 3 into the lock chamber 5 via its loading opening 5a. Once the copper pipe 8 completely discharges the opening lf of the furnace has passed, it is closed gas-tight by the draft door lh, so that no ambient air can penetrate into the furnace 1 of the furnace.
  • 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 from position I to position II by another drive (not shown) via the rails 5c.
  • the finished heat-treated and cooled copper tube 8 is transported from the open lock chamber 5 over the roller table 7 in accordance with the direction of the arrow 7 * and is thus fed to storage or further processing.

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  • 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)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electronic Switches (AREA)
  • Heat Treatment Of Articles (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (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

Ofensystem mit beweglicher Schleusenkammer Furnace system with a movable lock chamber
Die Erfindung betrifft Θfensystem zur thermischen Behandlung von langgestrecktem Gut, insbesondere einen Rollenherdofen, mit einer das Gut zuführenden Fördereinheit, mit einem eine gasdicht verschließbare Beschickungsöffnung aufweisenden Ofen und mit einer den Ofen mit der Fördereinheit verbindenden, eine gasdicht verschließbare Beschickungsöffnung aufweisenden Schleusenkammer, wobei die Schleusenkammer das Gut über die Beschickungsöffnung chargenweise aufnimmt und in den Ofen einschleust.The invention relates to furnace system for the thermal treatment of elongated material, in particular a roller hearth furnace, with a conveyor unit feeding the material, with an oven having a gas-tightly closable loading opening and with a lock chamber connecting the furnace with the conveyor unit and having a gas-tightly closable loading opening, the lock chamber collects the goods in batches through the loading opening and feeds them into the oven.
Bei den aus dem Stand der Technik bekannten Ofensystemen sind die das zu behandelnde Gut transportierende Fördereinheiten, die Schleusenkammer und der Ofen in einer Linie angeordnet . Insbesondere bei der Behandlung von besonders langgestrecktem Gut, 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, the conveyor units transporting the material to be treated, the lock chamber and the furnace are arranged in a line. Especially in the treatment of particularly elongated goods, e.g. Steel or copper tubes result in extreme system lengths, since not only the furnace itself, but also the lock chamber arranged in a line must completely accommodate the elongated one. Such systems have to be installed in appropriately designed machine shops, which is associated with considerable 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 an oven system for elongated goods, which is distinguished by a compact design compared to the prior art.
BESTATIGUNGSKOPIE Die Aufgabe wird erfindungsgemäß bei einem Ofensystem gemäß dem Oberbegriff des Patentanspruches 1 dadurch gelöst, dass der Ofen außerhalb der Förderrichtung der Fördereinheit angeordnet ist und die Schleusenkammer aus einer ersten Position, in der sie das- ihr von der Fördereinheit zugeführte Gut aufnimmt, in eine zweite Position, in der sie mit ihrer Beschickungsoffnung an die Beschickungsöffnung des Ofens gasdicht andockt, verlagerbar ist.BESTATIGUNGSKOPIE The object is achieved according to the invention in a furnace system according to the preamble of patent claim 1 in that the furnace is arranged outside the conveying direction of the conveying unit and the lock chamber from a first position in which it receives the material fed to it by the conveying unit into a second Position in which it gas-tightly docks with its loading opening onto the loading opening of the furnace can be shifted.
Dadurch, dass die 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 Fördereinheit 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 lock chamber according to the teaching of the invention is not arranged stationary, but between a first position in which it receives the material supplied to it by the conveyor unit and a second position in which it docks gas-tight with its loading opening to the loading opening of the furnace and the goods are fed into the furnace, can be moved, it is no longer necessary to arrange the conveyor unit and the furnace linearly one behind the other. Depending on the selected kinematics of the movement of the lock chamber, for example rotation or displacement or a combined movement, a parallel offset or angled arrangement of the furnace relative to the conveyor unit is possible, which in any case leads to a significant reduction in the system length.
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.According to an advantageous embodiment of the invention, the furnace is arranged alongside the conveyor unit and the lock chamber can be displaced essentially perpendicular to the conveying direction, the material being introduced into the furnace in a direction opposite to the conveying direction. With this arrangement, the length of the system can be shortened by at least the length of the furnace. A longitudinal arrangement of the furnace In addition to the conveyor unit, the system width is only minimally widened. For this purpose, the lock chamber is expediently mounted on a slide that can be moved on rails.
Nach einer besonders vorteilhaften Ausgestaltung der Erfindung 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 Beschickungsoffnung 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 a particularly advantageous embodiment of the invention, the furnace has a gas-tight lockable discharge opening opposite the loading opening, a second lock chamber with a gas-tight lockable loading opening and a second conveyor unit, the second lock chamber moving from a first position in which it feeds to the loading opening Discharge opening of the furnace docks in a gas-tight manner and receives the goods unloaded from the furnace, into a second position in which it feeds the goods to the second conveyor unit. By means of this arrangement, the compact furnace system according to the invention can be operated continuously by introducing the material through the first lock chamber into the furnace via its loading opening and, after the heat treatment has ended, discharging it through the discharge opening and transporting it further 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 can have a heating section and a cooling section arranged behind it. Goods that have been introduced into the furnace are first heat-treated, then cooled in a controlled manner and then discharged via the unloading opening after 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 by using the lock chamber as a vacuum chamber is trained. This means that the lock chamber is first evacuated and then filled with the protective gas that is also present in the furnace before opening the loading opening of the furnace. For this purpose, the furnace expediently has a docking unit in front of its loading opening, 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 loading opening of the furnace can be closed gas-tight by a pull door.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen:The invention is explained in more detail below with reference to a drawing which represents only one exemplary embodiment. Show it:
Fig. 1 ein Ofensystem für eine Durchl ufbehandlung mit zwei beweglichen Schleusenkammern in einer seitlichen Schnittansicht undFig. 1 shows a furnace system for a continuous treatment with two movable lock chambers in a side sectional view and
Fig. 2 das Ofensystem aus Fig. 1 in Draufsicht.Fig. 2 shows the furnace system of 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 8, mit einer Heizstrecke la und einer Kühlstrecke Ib. 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 la weist der Ofen 1 einen Einlaufraum lc mit einer Beschickungsöffnung ld auf, die vorzugsweise durch eine Zugtür lg gasdicht verschließbar ist. Entsprechend dem symmetrischen Aufbau des Ofens 1 weist dieser in Durchlaufrichtung hinter der Kühlstrecke lb einen Auslaufraum le mit einer Entladeöffnung lf auf , welche ebenso wie der Einlaufraum lc vorzugsweise durch eine Zugtür 1h gasdicht verschließbar ist .1 comprises a symmetrically constructed furnace 1 designed as a roller hearth furnace for the heat treatment of elongated material, in particular copper pipes 8, with a heating section 1 a and a cooling section 1 b. As can be seen in FIG. 2, the copper tube 8 passes through the furnace from left to right, so it is first heat-treated and then cooled in a controlled manner. In front of the heating section 1 a, the furnace 1 has an inlet space 1 c with a loading opening 1 d, which can preferably be closed gas-tight by a pull door 1 g. According to that The furnace 1 has a symmetrical structure in the direction of flow behind the cooling section 1b, an outlet space 1e with an unloading opening 1f, which, like the inlet space 1c, can preferably be closed gas-tight by a draft door 1h.
Vor der Beschickungsöffnung ld und hinter der Beschickungsöffnung lf 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.A docking unit 2, 3, to which a lock chamber 4, 5 can dock, is arranged in front of the loading opening 1d and behind the loading opening 1f of the furnace 1. Both docking units 2, 3 are each connected via a connection piece 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 OfenThe lock chambers 4, 5 are designed as vacuum chambers and, viewed in the direction of passage, are arranged in front of or behind the furnace. They are used for introducing or discharging the copper pipes 8 into or out of the furnace
1. Beide Schleusenkammern 4, 5 weisen jeweils eine gasdicht verschließbare Beschickungsöffnung 4a, 5a auf, über welche sie an die ihnen zugeordneten Andockeinheiten1. Both lock chambers 4, 5 each have a gas-tight lockable loading opening 4a, 5a, via which they can be connected to the docking units assigned to them
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. Die Funktionsweise des Ofensystems ist die folgende:2, 3 can dock. The lock chambers are each mounted on a slide 4b, 5b, which in turn is mounted on rails 4c, 5c. By moving the respective slide 4b, 5b on the rails 4c, 5c, the lock chambers 4, 5 can each move from a position I, in which they are docked to the docking units 2, 3 of the furnace 1, to a position II, in which they each are arranged at the end of a conveyor unit designed as a roller table 6, 7. The furnace system works as follows:
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 .First, the copper tube 8 is moved over the roller table 6 in the direction of the arrow 6 *. The lock chamber 4 is in position II, so that the copper tube 8 can be inserted into the lock chamber 4. The lock chamber 4 is then moved together with the copper tube 8 on the carriage 4b by a motor drive (not shown) into position I, in which it can be docked onto the docking unit 2 of the furnace 1. Then it is moved in the direction of the furnace 1 by a further drive (not shown) according to the double arrow 4 * to the extent that it docks onto the front of the docking unit 2 and thereby establishes a gas-tight connection to the docking unit 2. In the next step, the docking unit 2 and thus the lock chamber 4 connected to it is evacuated via the connection piece 2a and subsequently filled with protective gas.
Sodann wird durch Öffnen der Zugtür lg 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 lh verbunden. Im Ofen wird das Kupferrohr 8 zunächst in der Heizstrecke la wärmebehandelt und abschließend in der Kühlstrecke 1b kontrolliert wieder angekühlt. Anschließend wird es durch den Auslaufräum le und die Andockeinheit 3 in die Schleusenkammer 5 über deren Beschickungsöffnung 5a transportiert. Sobald das Kupferrohr 8 die Entladeöffnung lf des Ofens vollständig passiert hat, wird diese durch die Zugtür lh gasdicht geschlossen, so dass keine Umgebungsluft in den Ofen 1 des Ofens eindringen kann.Then, by opening the train door 1g, a connection is established from the docking unit 2 to the inlet space 1c of the furnace 1 and the copper tube 8 is introduced from the lock chamber 4 into the furnace 1 in accordance with the direction of the arrow 1 *. The lock outlet 5 on the furnace outlet side is also in position I and is connected to the furnace 1 via the docking unit 3 and the opened train door 1h. In the furnace, the copper pipe 8 is first heat-treated in the heating section la and finally cooled again in a controlled manner in the cooling section 1b. It is then transported through the outlet space le and the docking unit 3 into the lock chamber 5 via its loading opening 5a. Once the copper pipe 8 completely discharges the opening lf of the furnace has passed, it is closed gas-tight by the draft door lh, 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 subsequent 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 from position I to position II by another drive (not shown) via the rails 5c. There, the finished heat-treated and cooled copper tube 8 is transported from the open lock chamber 5 over the roller table 7 in accordance with the direction of the arrow 7 * and is thus fed to storage or further processing.

Claims

P A T E N T A N S P R Ü C H EP A T E N T A N S P R Ü C H E
Ofensystem zur thermischen Behandlung von langgestrecktem Gut, insbesondere Rollenherdofen, mit einer das Gut zuführenden Fördereinheit, mit einem eine gasdicht verschließbare Beschickungsöffnung aufweisenden Ofen und mit einer den Ofen mit der Fördereinheit verbindenden, eine gasdicht verschließbare Beschickungsöffnung aufweisenden Schleusenkammer, wobei die Schleusenkammer das Gut über die Beschickungsöffnung chargenweise aufnimmt und in den Ofen einschleust, d a d u r c h g e k e n n z e i c h n e t, d a s s der Ofen außerhalb der Förderrichtung der Fördereinheit angeordnet ist und die Schleusenkammer aus einer ersten Position, in der sie das ihr von der Fördereinheit zugeführte Gut aufnimmt, in eine zweite Position, in der sie mit ihrer Beschickungsöffnung an die Beschickungsöffnung des Ofens gasdicht andockt, verlagerbar ist.Oven system for the thermal treatment of elongated material, in particular a roller hearth furnace, with a conveyor unit feeding the material, with an oven having a gas-tightly closable loading opening and with a lock chamber connecting the furnace with the conveyor unit and having a gas-tightly closable loading opening, the lock chamber passing the material over the Receiving the loading opening in batches and introducing them into the furnace, characterized in that the furnace is arranged outside the conveying direction of the conveying unit and the lock chamber from a first position in which it receives the material supplied to it by the conveying unit, into a second position in which it its loading opening gas-tightly docks onto the loading opening of the furnace, is displaceable.
Ofensystem nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, d a s s der Ofen längsseits neben der Fördereinheit angeordnet ist und die Schleusenkammer im wesentlichen senkrecht zur Förderrichtung verschiebbar ist, wobei das Gut in einer zur Förderrichtung entgegengesetzten Richtung in den Ofen eingeschleust wird. Oven system according to claim 1, characterized in that the furnace is arranged alongside the conveyor unit and the lock chamber is displaceable substantially perpendicular to the conveying direction, the material being introduced into the furnace in a direction opposite to the conveying direction.
3. Ofensystem nach Anspruch 2 , d a du r c h g e k e n n z e i c h n e t, d a s s die Schleusenkammer auf einem auf Schienen verschiebbaren Schlitten gelagert ist.3. Oven system according to claim 2, because of which the lock chamber is mounted on a slide that can be moved on rails.
4. Ofensystem nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, d a s s der Ofen eine der Beschickungsöffnung gegenüberliegende, gasdicht verschließbare Entladeöffnung, eine zweite Schleusenkammer mit einer gasdicht verschließbaren Beschickungsöffnung sowie eine zweite Fördereinheit aufweist, 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.4. Furnace system according to one of claims 1 to 3, characterized in that the furnace has a gas-tight sealable discharge opening opposite the loading opening, a second lock chamber with a gas-tight lockable loading opening and a second conveyor unit, the second lock chamber from a first position in which it docks gas-tight with its loading opening onto the unloading opening of the furnace and receives the goods unloaded from the furnace, into a second position in which it feeds the goods to the second conveyor unit.
5. Ofensystem nach Anspruch 4 , d a d u r c h g e k e n n z e i c h n e t, d a s s der Ofen eine Heizzone und eine dahinter angeordnete Kühlstrecke aufweist.5. Oven system according to claim 4, d a d u r c h g e k e n n z e i c h n e t, that the furnace has a heating zone and a cooling section arranged behind it.
6. Ofensystem nach einem der Ansprüche 1 bis 5, d a du r c h g e k e n n z e i c h n e t, d a s s die Schleusenkammer als Vakuumkammer ausgebildet ist.6. Oven system according to one of claims 1 to 5, because of which the lock chamber is designed as a vacuum chamber.
7. Ofensystem nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t, d a s s der Ofen vor seiner Beschickungsöffnung eine Andockeinheit aufweist, an die die Vakuumkammer andockt und über welche die Schleusenkammer evakuierbar und mit Schutzgas befüllbar ist.7. Oven system according to claim 6, characterized in that the oven has a docking unit in front of its loading opening, to which the vacuum chamber docks and via which the lock chamber can be evacuated and filled with protective gas.
Ofensystem nach einem der Ansprüche 1 bis 7, d a d u r c h g e k e n n z e i c h n e t, d a s s die Beschickungsöffnung des Ofens durch eine Zugtür gasdicht verschließbar ist. Oven system according to one of claims 1 to 7, d a d u r c h g e k e n n e e c h n e t, that the loading opening of the furnace can be closed gas-tight by a train door.
PCT/EP2004/012980 2003-11-18 2004-11-16 Oven system provided with a displaceable sluice chamber WO2005050113A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04797928A EP1685356B1 (en) 2003-11-18 2004-11-16 Oven system provided with a displaceable sluice chamber
AT04797928T ATE498809T1 (en) 2003-11-18 2004-11-16 OVEN SYSTEM WITH MOVABLE LOCK CHAMBER
JP2006540292A JP2007511734A (en) 2003-11-18 2004-11-16 Furnace system with movable lock chamber
DE502004012207T DE502004012207D1 (en) 2003-11-18 2004-11-16 OVEN SYSTEM WITH MOBILE LOOP CHAMBER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10353947.6 2003-11-18
DE10353947A DE10353947A1 (en) 2003-11-18 2003-11-18 Furnace system with movable lock chamber

Publications (1)

Publication Number Publication Date
WO2005050113A1 true WO2005050113A1 (en) 2005-06-02

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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)

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* 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

Citations (2)

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US3778221A (en) * 1969-02-26 1973-12-11 Allegheny Ludlum Ind Inc Annealing furnace and method for its operation
DE3420147C1 (en) * 1984-05-30 1985-07-18 Keller Ofenbau GmbH, 4530 Ibbenbüren Lock on a tunnel furnace for baking ceramic products

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Publication number Priority date Publication date Assignee Title
DE7132962U (en) * 1972-11-23 Aeg-Elotherm Gmbh Transportable continuous furnace with protective gas atmosphere
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
DE8914635U1 (en) * 1989-12-08 1990-01-25 Cafrey Plastik Gmbh, 2810 Verden, De
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

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Publication number Priority date Publication date Assignee Title
US3778221A (en) * 1969-02-26 1973-12-11 Allegheny Ludlum Ind Inc Annealing furnace and method for its operation
DE3420147C1 (en) * 1984-05-30 1985-07-18 Keller Ofenbau GmbH, 4530 Ibbenbüren Lock on a tunnel furnace for baking ceramic products

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CN100580358C (en) 2010-01-13
ATE498809T1 (en) 2011-03-15
DE10353947A1 (en) 2005-06-30
JP2007511734A (en) 2007-05-10
EP1685356B1 (en) 2011-02-16
CN1879000A (en) 2006-12-13
TW200523516A (en) 2005-07-16
TWI321212B (en) 2010-03-01
EP1685356A1 (en) 2006-08-02
DE502004012207D1 (en) 2011-03-31

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