EP1699721B2 - Dispositif de guidage flottant d'un materiau en bande - Google Patents

Dispositif de guidage flottant d'un materiau en bande Download PDF

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Publication number
EP1699721B2
EP1699721B2 EP04797984A EP04797984A EP1699721B2 EP 1699721 B2 EP1699721 B2 EP 1699721B2 EP 04797984 A EP04797984 A EP 04797984A EP 04797984 A EP04797984 A EP 04797984A EP 1699721 B2 EP1699721 B2 EP 1699721B2
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EP
European Patent Office
Prior art keywords
web
gas
strip
nozzle
flow
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.)
Not-in-force
Application number
EP04797984A
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German (de)
English (en)
Other versions
EP1699721A1 (fr
EP1699721B1 (fr
Inventor
Klaus Schmitz
Manfred Kolle
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.)
Otto Junker GmbH
Original Assignee
Otto Junker GmbH
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Filing date
Publication date
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Application filed by Otto Junker GmbH filed Critical Otto Junker GmbH
Publication of EP1699721A1 publication Critical patent/EP1699721A1/fr
Application granted granted Critical
Publication of EP1699721B1 publication Critical patent/EP1699721B1/fr
Publication of EP1699721B2 publication Critical patent/EP1699721B2/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web

Definitions

  • the invention relates to a device for the floating guidance of sheet-like material, in particular of metal strips, by means of a gas having at least one unit, in each of which a surface of the float nozzle with nozzle ribs, from which the gas flows onto the sheet-like material, is arranged on both surfaces of the sheet material , and each floating nozzle field is fed by a radial fan associated therewith, which is laterally offset in a volute to the respective floating nozzle field with respect to the sheet material, via a flow channel system with gas, both centrifugal fans in the unit on the with respect to the sheet material same side are arranged.
  • Each centrifugal fan blows in a direction parallel to the transport direction of the metal strip flow channel, which merges after double deflection at the respective end face of the device in a parallel channel section with opposite flow direction.
  • the blow-by gas flows, after a further deflection, into the nozzle ribs of the respective floating door panel on the rear side thereof.
  • the invention is therefore an object of the invention to provide a device for floating guiding of web-like material, the one has simplified flow guidance and thus allows, inter alia, the integration of heating or cooling elements in the flow channel system.
  • the two gas flows are deflected only twice by about 90 °, so that the flow channel systems consist of a few simple, straight channel sections in which easily heating or cooling elements for the purpose of heat treatment or cooling of the web-like Have the material installed.
  • the type of flow guidance according to the invention also makes possible an optimized utilization of the space available in the device, which ultimately allows a more compact system design, which is less susceptible to thermally induced distortion.
  • the web-like material is guided horizontally through the device, so that the floating nozzle fields are arranged above and below the web-shaped material. Due to the separate controllability of the gas streams through the separately provided for the upper and lower floating nozzle jet radial fans while the carrying capacity of the band leading total gas flow can be adjusted very precisely.
  • the device according to the invention in principle also allows a vertical or any desired oblique or curved guide of the sheet material.
  • the spiral casings are shaped in such a way that the gas streams emerging from the spiral casings expand in a plane perpendicular to the surface of the web-shaped material up to the entire length of the floating nozzle fields.
  • a divergent gas flow which can be realized only in the flow guides according to the invention, in which the gas flows in a plane perpendicular to the surface of the sheet material from the volute, realizes a particularly uniform distribution of the gas to the individual nozzle ribs, and consequently also the arranged at the ends of the floating nozzle field nozzle ribs are supplied with the same volume flow as lying at the level of the respective centrifugal fan.
  • the uniformity of the gas flow ie an approximately identical and temporally constant volume flow in each nozzle rib, can be decisively further improved by the spiral housing each having a curved Strömungsleitblech, which halves the gas flow generated by the respective centrifugal fan substantially.
  • the gas flow is already in Spiral housing divided into two sub-streams, which each supply a group of nozzle ribs.
  • a longitudinal direction of the device i. in the transport direction of the web material, extremely space-saving arrangement of the two spiral housings can be achieved in that they are aligned point-symmetrically with respect to the center of the connecting line of the radial fan axes. Also perpendicular to the space requirement of both spiral housing can be further reduced by both radial fan axes are arranged in a direction parallel to the transport direction of the sheet material extending line.
  • the device for the purpose of heat treatment of the web-shaped material at least one heating element for heating the gas.
  • the device according to the invention can be expanded without great constructive effort to a strip float furnace.
  • the device may also be equipped with cooling elements that allow a controlled cooling of the guided through the device band.
  • the heat transfer from the heating element to the web-shaped material is convective, ie by the release of heat to the gas flowing around the heating element, which in turn flows around the web-like material and thereby heats up.
  • the heating element can be designed as a heating tube heated by combustion gases from the inside or else as an electric heating element, it being advantageous from a constructional point of view to arrange it in the device in such a way that it extends transversely to the transport direction of the sheet material and parallel to its surface.
  • it is also useful to increase the effective heat transfer surface of the heating tube for example by the heating tube additionally has a heating loop at its end projecting into the device, in a plan view, for example, p-shaped is.
  • a multi-level guidance or treatment of the sheet-like material can be achieved in that the device according to the invention consists of a plurality of units arranged one behind the other in the direction of transport of the sheet material. If a heat treatment of the web-shaped material is provided in such a system, then at least one of the units is equipped with at least one heating element, which may be formed in the manner described above, for example as a heating tube. If the sheet-like material to be cooled again after heating, it may be provided accordingly that the unit following the heating unit is equipped with cooling elements for controlled cooling of the sheet material.
  • the in the FIG. 1 illustrated device for the floating guidance and heat treatment of metal strip comprises a cuboid housing 1 with an inlet slot 1a and an outlet slot 1b, through which the metal strip B to be treated is guided into or out of the device.
  • the metal strip B is acted upon by an upper and a lower nozzle array 2, 3 with gas and thus guided floating.
  • the nozzle fields 2, 3 each comprise a number of nozzle ribs 2a, 3a, from which the gas flows onto the belt B, and each arranged between two nozzle ribs 2a, 3a outflow channels 2b, 3b, via which the gas flows reflected at the belt surfaces in a Suction chamber 4 flow out again.
  • the cuboid suction chamber 4 is in the view of FIG. 1 arranged behind the floating nozzle fields and extends over the entire length of the device.
  • the metal strip B suspended by the device is heat-treated at the same time.
  • 3 three heating elements 7, 8 are arranged, which the gas streams before entering the nozzle ribs heat, as will be described in more detail below.
  • the upper and the lower floating nozzle field 2, 3 is associated with a respective radial fan 5, 6, wherein the radial fan 5, the upper and the centrifugal fan 6, the lower floating nozzle field 2, 3 feeds.
  • Both centrifugal fans are positioned with respect to the metal strip B on the same side of the device (see FIG. 2 ) and are each driven by a separate motor, not shown.
  • the radial fans 5, 6 are further arranged in spiral housings 5a, 6a, which are aligned such that the gas flows generated by the radial fans 5, 6 in a plane perpendicular to the surface of the metal strip B from the volute casings 5a, 6a exit.
  • spiral housings 5a, 6a are shaped in such a way that the gas streams emerging from them expand up to the entire length of the floating nozzle fields 2, 3.
  • Such a divergent gas flow allows a particularly uniform distribution of the gas to the individual nozzle ribs, so that consequently the arranged at the ends of the floating nozzle fields 2, 3 nozzle ribs 2a, 3a are supplied with the same volume flow, as at the level of the radial fans 5, 6th lying.
  • a curved flow baffle 5b, 6b is provided within the spiral housing 5a, 6a, which in each case generates the flow baffle 5, 6 produced by the respective radial fan 5, 6 FIG. 3 Halved essentially with gas streams represented by arrows. This also contributes to a homogenization of the gas flows.
  • the relatively bulky volute casing 5a, 6a can nevertheless be arranged to save space with respect to length and height of the device at one longitudinal wall.
  • they are preferably aligned point-symmetrically with respect to the center of the connecting line of the centrifugal fan axes.
  • both radial fan axes are preferably arranged on a line running parallel to the transport direction of the web material.
  • the spiral housings 5a, 6a are part of two U-shaped flow channel systems S1, S2, via which the gas streams generated by the centrifugal fans 5, 6 pass into the nozzle ribs 2a, 3a of the floating nozzle fields 2, 3.
  • the gas streams initially emerge from the spiral casings 5a, 6a in a plane perpendicular to the surface of the sheet-like material and then flow through the nozzle ribs 2a, 3a of the floating nozzle fields 2, 3 by twice about 90 ° each their respective rear side.
  • the U-shaped flow channel systems S1, S2 are bounded on the outside by the housing wall 1 and on the inside by the wall of the suction chamber 4.
  • the gas streams flow horizontally and transversely to the transport direction of the metal strip B, wherein they flow around the heating elements 7, 8 arranged both above and below the floating nozzle fields 2, 3.
  • the heating elements 7, 8 are preferably formed as by combustion gases from inside heated heating tube, which extend transversely to the transport direction of the belt B and parallel to its surface.
  • the heating elements 7, 8 additionally each have a heating loop at their ends projecting into the device, so that they, as in FIG FIG. 4 represented, are formed in plan view p-shaped.
  • the gas streams heated by the heating elements 7, 8 flow into the nozzle ribs 2 a, 3 a of the floating nozzle fields 2, 3 via their respective rearward side and finally to the strip surface via nozzles (not shown) provided in the nozzle ribs 2 a, 3 a.
  • the gas streams are reflected in the outflow channels 2b, 3b, from where they enter through openings 4b provided in the side wall of the suction chamber 4 in these.
  • the gas collected in the suction chamber is in turn sucked in via the intake 4 a of the centrifugal fans 5, 6 and accelerated again.
  • FIGS. 1 to 4 illustrated device consists of a unit. It is understood that for the purpose of a controlled heat treatment and cooling several of the units described above can be arranged one behind the other, wherein at least one of the units is equipped with the above-described heating elements 7, 8 and preferably a further unit, in particular immediately following the heating unit, equipped with cooling elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Furnace Details (AREA)
  • Advancing Webs (AREA)
  • Coating With Molten Metal (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Claims (12)

  1. Dispositif pour le guidage en suspension d'un matériau en forme de bande (B), en particulier de bandes métalliques, au moyen d'un gaz, avec au moins une unité dans laquelle est agencé sur chacune des deux surfaces du matériau en forme de bande (B) un champ de suspension à jets (2, 3) avec des systèmes de buses (2a, 3a) desquelles s'écoule le gaz sur le matériau en forme de bande (B), et chaque champ de suspension à jets (2, 3) est alimenté en gaz, par l'intermédiaire d'un système de canaux d'écoulement (S1, S2), par un ventilateur radial (5, 6) qui lui est associé, lequel est agencé dans un boîtier en spirale, tout en étant décalé latéralement par rapport au matériau en forme de bande (B) pour chaque champ de suspension à jets (2, 3), les deux ventilateurs radiaux (5, 6) étant installés dans l'unité sur le même côté par rapport au matériau en forme de bande (B),
    caractérisé en ce que les systèmes de canaux d'écoulement (S1, S2), vus dans la direction de transport du matériau en forme de bande (B), sont réalisés chacun en forme de U de sorte que les flux de gaz, générés par les ventilateurs radiaux (5, 6), sortent des boîtiers en spirale (5a, 6a) sur un plan perpendiculaire à la surface du matériau en forme de bande (B) et, en subissant seulement deux déviations de chacune 90° dans les systèmes de buses (2a, 3a) des champs de suspension à jets (2, 3), s'écoulent ensuite sur le côté arrière de chacun de ceux-ci, les boîtiers en spirale (5, 6a) étants formés de sorte que les flux de gaz sortant respectivement des boîtiers en spirale (5a, 6a) s'élargissent, sur un plan perpendiculaire à la surface du matériau en forme de bande (B), jusqu'à la longueur totale des champs de suspension à jets (2, 3).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le matériau en forme de bande (B) est guidé horizontalement par l'unité de sorte que les champs de suspension à jets (2, 3) soient disposés au-dessus et au-dessous du matériau en forme de bande (B).
  3. Dispositif selon revendication 1 ou 2,
    caractérisé en ce que les boîtiers en spirale (5, 6a) présentent chacun une tôle de guidage de flux (5b, 6a) courbe qui divise sensiblement en deux le flux de gaz généré par chacun des ventilateurs radiaux (5, 6).
  4. Dispositif selon l'une des revendications 1 à 3,
    caractérisé en ce que les boîtiers en spirale (5a, 6a) sont orientés à symétrie ponctuelle par rapport au point central de la ligne de liaison des axes des ventilateurs radiaux.
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que les deux axes des ventilateurs radiaux sont disposés sur une ligne qui s'étend parallèlement à la direction de transport du matériau en forme de bande (B).
  6. Dispositif selon les revendications 1 à 5, caractérisé en ce que, pour le traitement à chaud du matériau en forme de bande (B), l'unité présente au moins un élément de chauffage (7, 8) pour le chauffage du gaz.
  7. Dispositif selon la revendication 6,
    caractérisé en ce que, dans chacun des deux systèmes de canaux (S1, S2), est installé au moins un élément de chauffage (7, 8).
  8. Dispositif selon revendication 6 ou 7,
    caractérisé en ce que l'élément de chauffage (7, 8) est réalisé sous la forme d'un tube de chauffage qui est chauffé, de l'intérieur, par un gaz de combustion.
  9. Dispositif selon la revendication 8,
    caractérisé en ce que le tube de chauffage (7, 8) s'étend transversalement par rapport à la direction de transport du matériau en forme de bande (B) et parallèlement à la surface de celui-ci.
  10. Dispositif selon revendication 8 ou 9,
    caractérisé en ce que le tube de chauffage (7, 8) présente en plus une boucle de chauffage à son extrémité faisant saillie dans l'unité.
  11. Dispositif selon l'une des revendications 1 à 10,
    caractérisé en ce que le dispositif consiste en plusieurs unités qui sont disposées les unes derrière les autres dans la direction de transport du matériau en forme de bande (B).
  12. Dispositif selon l'une des revendications 6 à 10 et 11,
    caractérisé en ce que l'une des unités au moins est équipée d'au moins un élément de chauffage (7, 8).
EP04797984A 2003-12-10 2004-11-18 Dispositif de guidage flottant d'un materiau en bande Not-in-force EP1699721B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10358142A DE10358142A1 (de) 2003-12-10 2003-12-10 Vorrichtung zum schwebenden Führen von bahnförmigem Material
PCT/EP2004/013091 WO2005056448A1 (fr) 2003-12-10 2004-11-18 Dispositif de guidage flottant d'un materiau en bande

Publications (3)

Publication Number Publication Date
EP1699721A1 EP1699721A1 (fr) 2006-09-13
EP1699721B1 EP1699721B1 (fr) 2008-01-16
EP1699721B2 true EP1699721B2 (fr) 2011-11-30

Family

ID=34672639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797984A Not-in-force EP1699721B2 (fr) 2003-12-10 2004-11-18 Dispositif de guidage flottant d'un materiau en bande

Country Status (4)

Country Link
EP (1) EP1699721B2 (fr)
AT (1) ATE384020T1 (fr)
DE (2) DE10358142A1 (fr)
WO (1) WO2005056448A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006056518A1 (de) * 2006-11-06 2008-05-08 Otto Junker Gmbh Vorrichtung zur schwebenden Führung von bahnförmigem Material
DE102011103806B3 (de) 2011-06-01 2012-11-22 Otto Junker Gmbh Vorrichtung zum schwebenden Führen von metallischen Bändern mittels eines Gases sowie ein Verfahren zum Betreiben einer solchen Vorrichtung
DE202014103399U1 (de) 2014-04-30 2014-08-01 Otto Junker Gmbh Vorrichtung zur schwebenden Führung von bahnförmigem Material
DE102016101160B4 (de) 2016-01-22 2017-09-28 Otto Junker Gmbh Vorrichtung zum schwebenden Führen und gleichzeitigem Abkühlen von bahnförmigem Material und Verfahren zum Betreiben einer solchen Vorrichtung
DE102019102595A1 (de) 2019-02-01 2020-08-06 Otto Junker Gmbh Verfahren zum Abkühlen von bewegtem metallischen Material sowie Vorrichtung zur Durchführung eines solchen Verfahrens
DE102021130814A1 (de) 2021-11-24 2023-05-25 Otto Junker Gesellschaft mit beschränkter Haftung Wärmebehandlungsanlage mit einem Ofen und einer Kühlsektion sowie Verfahren zur Wärmebehandlung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0864519B1 (fr) † 1997-03-12 2003-06-25 Kramer, Carl, Prof.Dr.-Ing. Dispositif pour guider une bande de façon flottante

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496647A (en) * 1968-03-01 1970-02-24 Samcoe Holding Corp Dryer for fabrics and the like
DE2056190C3 (de) * 1970-11-16 1978-10-12 Fa. F.W. Carduck, 5100 Aachen Düsentrockner für kontinuierlich durchlaufendes, bahnförmiges Material
US3739491A (en) * 1971-09-22 1973-06-19 Tec Systems High velocity air web dryer
DE2908348A1 (de) * 1979-03-03 1980-09-04 Vits Maschinenbau Gmbh Schwebetrockner
JPS5742371A (en) * 1980-08-28 1982-03-09 Daido Steel Co Ltd Continuous paint-drying and baking oven
DD255201B5 (de) * 1986-12-19 1994-03-10 Textilmaschinenbau Gera Gmbh Vorrichtung zur waermebehandlung von warenbahnen, insbesondere textilbahnen
DE19804184A1 (de) * 1998-02-03 1999-08-05 Kramer Carl Vorrichtung zur schwebenden Führung von Bändern

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0864519B1 (fr) † 1997-03-12 2003-06-25 Kramer, Carl, Prof.Dr.-Ing. Dispositif pour guider une bande de façon flottante

Also Published As

Publication number Publication date
EP1699721A1 (fr) 2006-09-13
DE502004005996D1 (de) 2008-03-06
EP1699721B1 (fr) 2008-01-16
DE10358142A1 (de) 2005-07-14
ATE384020T1 (de) 2008-02-15
WO2005056448A1 (fr) 2005-06-23

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