EP0862033B1 - Einrichtung zur Ersetzung einer Bandträgerrolle in einem Wärmebehandlungsofen - Google Patents

Einrichtung zur Ersetzung einer Bandträgerrolle in einem Wärmebehandlungsofen Download PDF

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Publication number
EP0862033B1
EP0862033B1 EP98400333A EP98400333A EP0862033B1 EP 0862033 B1 EP0862033 B1 EP 0862033B1 EP 98400333 A EP98400333 A EP 98400333A EP 98400333 A EP98400333 A EP 98400333A EP 0862033 B1 EP0862033 B1 EP 0862033B1
Authority
EP
European Patent Office
Prior art keywords
roller
flanges
support
support roller
furnace
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.)
Expired - Lifetime
Application number
EP98400333A
Other languages
English (en)
French (fr)
Other versions
EP0862033A1 (de
Inventor
Pascal Francis Thevenet
Guy Mace
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.)
Fives Stein SA
Original Assignee
Stein Heurtey SA
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Filing date
Publication date
Application filed by Stein Heurtey SA filed Critical Stein Heurtey SA
Publication of EP0862033A1 publication Critical patent/EP0862033A1/de
Application granted granted Critical
Publication of EP0862033B1 publication Critical patent/EP0862033B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F27B9/24—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 being carried by a conveyor
    • F27B9/2407—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 being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • 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
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/562—Details
    • C21D9/563—Rolls; Drums; Roll arrangements

Definitions

  • the present invention relates to a device designed to ensure the replacement of a support roll for a strip, in particular a steel strip, continuously scrolling through a heat treatment oven, without interrupting treatment, that is to say the movement of the strip in the oven.
  • FR-A-2 540 138 a device for carrying out the replacement of a tape support roller by another roller, in a processing oven thermal.
  • the two interchangeable rollers are placed, in diametrically opposite position, on the periphery of a mounted cylinder on a support structure, the rotation of this cylinder around its axis allowing to substitute one roll for another.
  • the present invention proposes to provide another solution to the problem consisting, in a heat treatment furnace of strips of continuous movement, replacing a support roller with a new roller, without interrupt the movement of the strip, this new solution not presenting the disadvantages of the device according to the prior art recalled above.
  • each of said rollers supports is provided with cooling means, these means being able to be designed so as to further ensure rapid cooling of said rollers, low position, when evacuated after swapping operations.
  • each support roller is mounted on its flanges by means of a radial slot or slot provided on each of said flanges for receiving the roller support bearing corresponding and the means ensuring the removable fixing of each roller support on its flanges are made in the form of counter plates on which are respectively mounted said bearings, these against plates being by example screwed or bolted to said flanges.
  • the axis on which each pivots of said flanges is cooled with water can be protected by a lining of a material refractory, which can be produced for example in the form of an assembly of compressed ceramic fibers.
  • said central buffer can be produced in two parts each provided with displacement means making it possible to lift them separately from each other.
  • the device the present invention is designed so as to permanently ensure the quality of the guidance of the strip in the oven, without degradation of this guidance or of the quality of the product during the swap operation of the tape support roller.
  • a roll must be able to be replaced without stopping the running of the strip by swapping with a second identical roller arranged in a waiting position, the strip always being supported by at least one roller during the operations to swap and disassemble the roller to be taken out of service, the roller support in service being always rotated in synchronism with the tape running speed.
  • the device which is the subject of the invention comprises two lateral flanges 1 and 2 designed to receive the bearings of the support rollers 3 and 4 respectively.
  • the flanges 1 and 2 are respectively mounted on a central shaft 5 and 6 possibly cooled by water circulation. Trees such as 5 and 6 can be protected for example by a lining of a refractory material allowing avoid the presence of water cooling means. This protection of shafts 5, 6 can be produced using an assembly 7 of ceramic fibers compressed.
  • the shafts 5 and 6 of the lateral flanges 1 and 2 are driven in rotation respectively by a motor unit 8, 9, the drive being carried out so as to ensure the synchronization of the angular displacements of the flanges side 1, 2 in order to guarantee the position of the support roller (for example the roller 3 in Figure 1) in the working position.
  • the respective bearings of the shafts 5 and 6 of the lateral flanges 1 and 2 are mounted on the frame of the oven, on elements of the latter such as 10 and 10 ', on the on the other side of the oven.
  • the tape support rollers 3 and 4 are removably mounted on the corresponding side plates 1 and 2 respectively.
  • these flasks have a radial slot or light such as 11, 12 (FIG. 2) intended to respectively receive a bearing from a support roller.
  • Each roller bearing supports 3 and 4 is fixed on a counter plate such as 13, 14 using means of suitable fastening, for example by screwing or bolting in order to allow quick and easy disassembly of these bearings.
  • Each support roll 3 or 4 is rotated through a drive group such as 15 and a double gimbal transmission system as clearly seen in the figure 3, the rotation of each roller being synchronized with the speed of movement of band B.
  • Each of said support rollers 3 and 4 is provided with cooling means, these means can be designed or produced so as to further ensure rapid cooling of said rollers, when these are brought into position low, as will be described below, during their evacuation after the operations of permutation.
  • the device further comprises a central liftable buffer 16 making it possible to close off the lower opening provided in the bottom of the oven to ensure the evacuation of a support roll such as 3 or 4 from the oven enclosure to the outside, after a permutation operation, as will be described below.
  • the central buffer 16 can be moved in a vertical translational movement using a designated double jack system as a whole by reference 17.
  • each lifting buffer such as 18 and 19 is provided with a cylinders 20, 20 'mounted respectively on a carriage 21, 22 moving along of a track 23, 24 respectively.
  • the tape support roller in use is the roller 3 supported by the pair of lateral flanges 1.
  • the roller 4 supported by the side flanges 2 is in the waiting position.
  • the first phase of this permutation operation consists in moving down the central buffer 16 in order to allow the rotation of the lateral flanges 1 and 2. This movement is carried out using the jack systems 17 and in FIG. 2, there is shown in broken lines, the position of the tampon central 16 at the end of this first phase. Then, control groups 8 and 9 synchronized rotation drive side flanges 1 and 2 are set action so as to bring the roller 4 into contact with the strip, this roller being driven in rotation synchronized with the running speed of the tape B. Then, the used roller 3 is moved by the rotation of its support flanges 1 so as to move it away from the strip. Note that during this phase of permutation of support rollers, movement synchronization was ensured angles of the side plates 1, 2 supports of the rollers 3 and 4 in order to guarantee the position of a support roller successively 3 and 4 in the working position.
  • the jack system 17 ensures the raising of the central buffer 16 in order to close off the lower opening provided in the bottom of the oven (position in solid lines on the Figure 2) and seal the oven.
  • the used roller 3 to be removed then rests on its liftable buffer 18 in the high position, this liftable buffer further ensuring the sealing of the opening of the hearth of the furnace during this phase evacuation of the roller 3.
  • the bearings of the roller 3 are then disassembled then the latter is released from the slots 11 provided in its support flanges 1.
  • the actuator system 20 is then actuated so as to lower the roller 3 supported by the pad 18, which releases this roller from its flanges 1.
  • the used roller is then evacuated outside using the carriage 21 and removed by example using an overhead crane.
  • the new roller is therefore positioned on the pad 18 and the carriage is moved 21 along its track 23 so as to bring the roller supported by the pad 18 below the position of the flanges 1 intended to support it.
  • the actuator system 20 is then actuated in order to raise the buffer 20 to bring the bearings of the new roller engaged in the slots or radial slots 11 provided in the flanges 1.
  • This new roller is ready to be put into service when it has to be swapped with roller 4 currently in service.
  • the dashed lines show the rotational movements of the flanges 1 and 2 which are generated during this operation swap at the end of which the new roller positioned on the flanges 1 is put into service and the roller 4, which is then the used roller, is then discharged as described above.
  • stamp central 16 can be realized in two independent parts, movable separately, by example using separate cylinders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Closing Of Containers (AREA)

Claims (10)

  1. Vorrichtung zum Ersetzen einer Tragrolle für ein kontinuierlich in einem Wärmebehandlungsofen durchlaufendes Band, insbesondere ein Stahlband, durch Auswechseln gegen eine gleiche zweite Rolle, die in einer Bereitschaftsposition angeordnet ist, ohne den Behandlungsvorgang zu unterbrechen, wobei das Band während der Auswechselvorgänge ständig von mindestens einer der Rollen getragen wird und die Vorrichtung dadurch gekennzeichnet ist, daß sie
    zwei Paare (1, 2) von Seitenflanschen, die jeweils drehbar auf einer im Unterbau des Ofens drehbar gelagerten Welle (5, 6) angebracht sind, wobei jedes Flanschpaar über abnehmbare Befestigungsmittel (13, 14) eine Tragrolle (3, 4) für das Band aufnimmt,
    Mittel (8, 9) für den Antrieb der Paare von Seitenflanschen, durch welche die Synchronisation von deren Winkelbewegung während der Auswechselvorgänge sichergestellt wird,
    einen mit Hubmitteln (17) versehenen Zentralverschluß (16), der so konstruiert ist, daß er die Öffnung verschließt, welche in der Ofensohle vorgesehen ist, um nach einem Auswechselvorgang die Tätigkeiten zum Herausziehen einer Rolle aus dem Inneren des Ofens nach außen ausführen zu können,
    zwei anhebbare Verschlüsse (18, 19), jeweils einer für eine Tragrolle, die in einer vertikalen Translationsbewegung verschoben werden können, um
    während der Phase des Auswechselns der Rollen die Dichtheit der in der Ofensohle vorgesehenen Öffnung sicherzustellen,
    das Abstützen der Rollen während des Ausbaus der Rollenlager sicherzustellen, um die nicht arbeitende Rolle von den entsprechenden Flanschen abzuheben, bzw.
    die nicht arbeitende Rolle abzusenken, um sie von ihren Flanschen zu lösen,
    zwei quer zur Ofenachse bewegliche Wagen (21, 22), auf denen die anhebbaren Verschlüsse (18, 19) jeweils angebracht sind, und ihr Hubsystem, wobei sich diese Wagen entlang von Rollenbahnen derart bewegen, daß die Bewegung der nicht arbeitenden Rolle sichergestellt wird, um diese aus dem Ofen herauszuziehen und eine neue Rolle an ihre Stelle zu bringen, und
    eine Antriebsgruppe für die jeweilige Tragrolle (3, 4), so daß für jede Rolle eine Rotation erhalten wird, die mit der Durchlaufgeschwindigkeit des Bandes (B) synchronisiert ist,
    umfaßt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Tragrollen (3, 4) jeweils mit Kühlmitteln versehen sind.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Kühlmittel so konstruiert sind, daß sie außerdem für eine schnelle Kühlung der Rollen in abgesenkter Position während ihres Herausziehens nach den Auswechselvorgängen sorgen.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die jeweilige Tragrolle (3, 4) auf ihren Flanschen (1, 2) vermittels einer radialen Öffnung oder eines radialen Schlitzes (11, 12) angebracht ist, die/der in den jeweiligen Flanschen vorgesehen ist, um das Traglager der entsprechenden Rolle aufzunehmen.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Mittel, welche für jede Tragrolle (3, 4) die lösbare Befestigung auf ihren Flanschen (1, 2) sicherstellen, in Form von Konterplatten (13, 14) ausgeführt sind, auf denen das jeweilige Lager für die Rollen angebracht ist, wobei diese Konterplatten auf den Flanschen verschraubt sind.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Achse (5, 6), auf welcher sich die jeweiligen Flansche (1, 2) drehen, wassergekühlt ist.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Achse (5, 6), auf welcher sich die jeweiligen Flansche (1, 2) drehen, von einem Überzug aus einem hitzebeständigen Material geschützt ist.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Überzug in Form einer Vereinigung von verdichteten Keramikfasern (7) ausgeführt ist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Mittel, welche einerseits für die Hub- und die Senkbewegung der Verschlüsse (18, 19) und des Zentralverschlusses (16) sorgen, als Hydraulikzylindersysteme (20, 17) ausgeführt sind.
  10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Zentralverschluß in Form von zwei Teilen ausgeführt ist, wovon jeder mit Bewegungsmitteln versehen ist, welche sicherstellen, daß sie während der Tätigkeiten für das Auswechseln der Rollen unabhängig voneinander angehoben werden.
EP98400333A 1997-02-27 1998-02-12 Einrichtung zur Ersetzung einer Bandträgerrolle in einem Wärmebehandlungsofen Expired - Lifetime EP0862033B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9702365 1997-02-27
FR9702365A FR2760077B1 (fr) 1997-02-27 1997-02-27 Dispositif pour assurer le remplacement d'un rouleau support de bande dans un four de traitement thermique

Publications (2)

Publication Number Publication Date
EP0862033A1 EP0862033A1 (de) 1998-09-02
EP0862033B1 true EP0862033B1 (de) 2002-11-13

Family

ID=9504256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98400333A Expired - Lifetime EP0862033B1 (de) 1997-02-27 1998-02-12 Einrichtung zur Ersetzung einer Bandträgerrolle in einem Wärmebehandlungsofen

Country Status (6)

Country Link
US (1) US5938431A (de)
EP (1) EP0862033B1 (de)
JP (1) JPH10306323A (de)
DE (2) DE862033T1 (de)
ES (1) ES2119734T3 (de)
FR (1) FR2760077B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110494572A (zh) * 2017-04-13 2019-11-22 杰富意钢铁株式会社 密封装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010971C2 (nl) 1999-01-06 2000-07-07 Thermtec B V Bandgeleidingsinrichting met koelmiddelen.
FI109363B (fi) * 1999-08-04 2002-07-15 Outokumpu Oy Laite käsiteltävän materiaalin kannattamiseksi jatkuvatoimisissa lämpökäsittelyuuneissa
JP4564197B2 (ja) * 2001-03-27 2010-10-20 中外炉工業株式会社 カテナリー型連続熱処理炉用ロール取替え装置
JP4514019B2 (ja) * 2003-12-02 2010-07-28 株式会社不二越 ハースローラ装置及びローラハース炉
JP5038386B2 (ja) * 2009-12-18 2012-10-03 中外炉工業株式会社 カテナリ型炉
DE102011079771B4 (de) 2011-07-25 2016-12-01 Ebner Industrieofenbau Gmbh Rollenwechselvorrichtung und Verfahren zum Wechseln einer Rolle für Öfen
CN109926895B (zh) * 2019-02-28 2021-03-09 北京首钢股份有限公司 一种退火炉内炉辊在线修磨控制方法和装置

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US4049372A (en) * 1976-05-04 1977-09-20 Allegheny Ludlum Industries, Inc. Apparatus for supporting and removing a work supporting roll
DE3004805C2 (de) * 1980-02-09 1981-12-10 Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer Verfahren und Vorrichtung zum Auswechseln von Tragrollen in Rollenherd-Durchlaufglühöfen
DE3230115A1 (de) * 1982-08-13 1984-02-16 Ruhrgas Ag, 4300 Essen Verfahren zum auswechseln der rollen eines durchlauf-rollenherdofens sowie ofen zum durchfuehren des verfahrens
FI67726C (fi) * 1983-01-27 1985-05-10 Outokumpu Oy Anordning foer uppbaerande av foer behandling avsett material vid kontinuerligt arbetande vaermebehandlingsugnar
DE3735542A1 (de) * 1987-10-21 1989-05-03 Zimmermann & Jansen Gmbh Rollengang fuer den abtransport von flachglas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110494572A (zh) * 2017-04-13 2019-11-22 杰富意钢铁株式会社 密封装置
US11401575B2 (en) 2017-04-13 2022-08-02 Jfe Steel Corporation Sealing device

Also Published As

Publication number Publication date
ES2119734T3 (es) 2003-03-01
DE862033T1 (de) 1999-05-06
FR2760077B1 (fr) 1999-04-30
ES2119734T1 (es) 1998-10-16
FR2760077A1 (fr) 1998-08-28
JPH10306323A (ja) 1998-11-17
US5938431A (en) 1999-08-17
DE69809312T2 (de) 2003-09-04
EP0862033A1 (de) 1998-09-02
DE69809312D1 (de) 2002-12-19

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