EP1167578B1 - Dispositif pour le traitement de pièces métalliques allongées, en particulier pour le décapage de bandes laminées - Google Patents

Dispositif pour le traitement de pièces métalliques allongées, en particulier pour le décapage de bandes laminées Download PDF

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Publication number
EP1167578B1
EP1167578B1 EP01113485A EP01113485A EP1167578B1 EP 1167578 B1 EP1167578 B1 EP 1167578B1 EP 01113485 A EP01113485 A EP 01113485A EP 01113485 A EP01113485 A EP 01113485A EP 1167578 B1 EP1167578 B1 EP 1167578B1
Authority
EP
European Patent Office
Prior art keywords
heat exchangers
treatment
treatment liquid
float
channel
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
EP01113485A
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German (de)
English (en)
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EP1167578A1 (fr
Inventor
Peter Schüler
Stefan Volz
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.)
SMS Siemag AG
Original Assignee
SMS Siemag AG
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Filing date
Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP1167578A1 publication Critical patent/EP1167578A1/fr
Application granted granted Critical
Publication of EP1167578B1 publication Critical patent/EP1167578B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/024—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by a combination of dipping and spraying
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying

Definitions

  • the invention relates to a device for the treatment of metallic strand material, in particular for pickling rolled strip, which is transportable through a treatment channel and turbulently irradiated with treatment liquid from nozzles, wherein the liquid jets are set at the channel entrance in strand transport direction and are directed at the channel exit opposite to the strand transport direction to to inhibit rapid drainage of the treatment liquid.
  • Such a device is known from DE-OS 29 11 701 known.
  • This design aims to avoid the difficulties in the use of pinch rollers and thus a transfer of treatment liquid between individual tanks. Supporting or guiding rollers should be replaced by other elements.
  • this design is based on oblong rectangular treatment chambers and, on the other hand, treatment nozzles are arranged parallel and perpendicular to the strand transport direction.
  • deflectors are arranged above and below the extruded material, which are intended to effect a better spraying of the extruded material.
  • the measures described are directed exclusively to further turbulence and increase in turbulence and are purely mechanical approaches dar. Further chemical action is neither intended nor intended.
  • the EP 0 058 216 A1 describes a device for the chemical or electrochemical surface treatment of material to be treated in a heated liquid treatment medium consisting of a lidded liquid container, in particular Bandbeizstrom, in which the strip surface is partially covered to reduce the evaporation surface.
  • the basis of this invention is to optimize the coverage of the evaporation surface of the bath so that the evaporation rate is reduced as much as possible.
  • the EP 0 795 629 A1 relates to a device for surface treatment of baths with liquids, in particular for pickling rolled metal strips in a trough-shaped, in particular closed by a lid container.
  • a plate immersed in the liquid above the strip an improved reflux of the accumulated treatment liquid from the region of the strip outlet to the strip inlet is to be ensured in the treatment tank, so that the accumulation height in the region of the strip outlet is reduced.
  • a treatment channel with a low bath depth while maintaining the free surface of the treatment medium. This ensures a targeted circulation and mixing of the treatment medium in the treatment tank.
  • the invention is based on the object, in addition to the physical effects of turbulence, to improve the chemical effects of the treatment liquid and possibly even the surface state of the material in the interest of increasing throughput and extending the treatment to critical steel grades.
  • the treatment channel is formed at the top by means of juxtaposed floats facing the strand, are each provided with individual or more, area-distributed heat exchangers whose heat energy is transferable to the treatment liquid and / or the stock.
  • An additional thermal input increases the chemical effects by bringing the treatment liquid more quickly to the desired reaction temperature and thus reacting earlier and more intensively.
  • a further improvement in the efficiency of such devices is achieved in combination with chemical reactions in that the area-distributed heat exchangers are assigned flow baffles, which serve downwards above for mixing the treatment liquid flow.
  • the flow baffles are arranged between two heat exchangers, laterally from a heat exchanger and / or in front of or in front of a pair of heat exchangers. As a result, a particularly intensive turbulence of the treatment liquid is achieved.
  • the transfer of heat energy to the strand material and / or the treatment liquid takes place particularly intensively, in that the heat exchangers each consist of heating pipes or heating plates laid on the underside of the floating body.
  • a further embodiment provides that the heating tubes are made of PVDF or PTFE and operated with water vapor of about 130 - 135 ° C. This training ensures a good heat load capacity at relatively high temperatures.
  • the floats are attached to the heat exchangers each with distance to a surrounding, the float facing open lid housing.
  • the cover housing is connected by means of a plurality of spacers with the float.
  • the handling of the float, the heat exchanger and the cover housing is further facilitated by the fact that the cover housing can be lifted together with the float by means of a lifting harness or a hydraulic device or placed on the treatment chamber. This allows the heat exchanger outside the device to be easily and quickly replaced or repaired.
  • the floating body is made of plastic, whereby a considerably lightweight construction can be created.
  • the device for the treatment of metallic strand 1, in particular of rolled strip 1 a, which is transported through a treatment channel 2, has a first treatment chamber 3 and a second treatment chamber 4 lying one behind the other.
  • the stock 1 is irradiated with treatment liquid 5 from nozzles 6 with liquid jets 7 in such a way that a turbulent treatment liquid flow 5a exists.
  • the liquid jets 7 are set at the channel entrance 8 in the strand transport direction 9 and opposite to the channel exit 10 to the strand transport direction 9, so that a rapid outflow of the treatment liquid 5 from the respective treatment chamber 3 and 4 is at least inhibited.
  • the strand 1 lies within the treatment chambers 3, 4 on sliding blocks 3a and 4a.
  • the treatment channel 2 is formed on its upper side 2a by means of juxtaposed floats 11, which are facing the material 1, each equipped with individual or multiple, area-distributed heat exchangers 12 whose heat energy is transferred to the treatment liquid 5 and / or the extruded material 1.
  • the entering with the desired inlet temperature treatment liquid 5 intensifies the chemical reaction between the surface of the strand 1, in particular of rolled strip 1 a, and leads to more intensive cleaning operations and thus to an optimization of the process and a higher throughput.
  • the turbulence also contributes to these processes, so that a significant improvement of the process takes place in combination with the heated treatment liquid 5 introduced.
  • Fig. 2 It can also be seen that the flow guide plates 13 are arranged between two heat exchangers 12, laterally from a heat exchanger 12 and / or in front of or in front of a pair of heat exchangers 12 in the strand transport direction 9.
  • the heat exchangers 12 each consist of heating pipes 14 or heating plates laid on the underside 11a of the floating bodies 11.
  • the heating tubes 14 are laid serpentine to Schuwaben 15 and are located in closed sections 11b of the float 11.
  • the heating tubes are made of PVDF (polyvinylidene fluoride) or PTFE (polytetrafluoroethylene) and carry steam of about 130-135 ° C.
  • the floats 11 are connected to the heat exchangers 12 each with a distance 16 to a surrounding, the floating body 11 facing open lid housing 17.
  • the distance 16 is determined by means of a plurality of spacers 18 between the float 11 and the cover housing 17.
  • the cover housing 17 can be lifted out as a unit together with the floating body 11 and the heat exchangers 12 by means of a lifting harness 19 or by means of a hydraulic device or can be placed on the treatment chamber 3 or 4 again.
  • the floating body 11 may be made of plastic to take only a light weight and any disturbing vapors from the treatment liquid 5 to resist and catch them.
  • the hot steam is fed in direction 20 through a hose connection 21 and through the float 11 into the heating pipes 14 and back in the circuit.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (10)

  1. Dispositif pour le traitement de produit coulé en continu métallique (1), en particulier pour le décapage d'une bande laminée, avec un canal de traitement (2), dans lequel le produit coulé en continu (1) peut être transporté, et avec des pulvérisateurs (6) avec lesquels il peut être aspergé de manière turbulente par le liquide de traitement (5), les jets de liquide (7) étant réglés à l'entrée (8) du canal dans le sens de transport du produit coulé en continu et à la sortie (10) du canal à contre-courant par rapport au sens de transport du produit coulé en continu, pour empêcher un écoulement rapide du liquide de traitement, caractérisé
    en ce que le canal de traitement (2) est formé sur la face supérieure (2a) au moyen de flotteurs (11) successifs, qui sont pourvus, face au produit coulé en continu (1) à chaque fois d'un ou de plusieurs échangeurs de chaleur (12) répartis sur la surface, dont l'énergie thermique peut être transférée au liquide de traitement (5) et/ou au produit coulé en continu (1).
  2. Dispositif selon la revendication 1, caractérisé
    en ce que les échangeurs de chaleur (12) répartis sur la surface sont associés à des tôles de guidage (13) du flux, qui servent, en étant en saillie vers le bas, au mélange du flux de liquide de traitement (5a).
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé
    en ce que les tôles de guidage (13) du flux sont disposées entre deux échangeurs de chaleur (12), latéralement par rapport à un échangeur de chaleur (12) et/ou avant un ou avant une paire d'échangeurs de chaleur (12).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé
    en ce que les échangeurs de chaleur (12) sont à chaque fois constitués par des tubes chauffants (14) ou des plaques chauffantes placés à la face inférieure (11a) des flotteurs (11).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé
    en ce que les tubes chauffants (14) sont placés en forme de serpentin en formant des nids d'abeille chauffants (15).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les tubes chauffants (14) sont réalisés en PVDF () ou en PTFE (polytétrafluoroéthylène) et exploités avec de la vapeur d'eau à environ 130-135°C.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé
    en ce que les flotteurs (11) sont fixés avec les échangeurs de chaleur (12) à chaque fois à une certaine distance (16) sur un bâti en forme de couvercle (17) périphérique, ouvert, face au flotteur (11).
  8. Dispositif selon la revendication 6, caractérisé
    en ce que le bâti en forme de couvercle (17) est relié au moyen de plusieurs écarteurs (18) avec le flotteur (11).
  9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé
    en ce que le bâti en forme de couvercle (17) peut, ensemble avec le flotteur (11), au moyen d'un cadre de levage (19) ou au moyen d'un dispositif hydraulique, être enlevé de ou placé sur la chambre de traitement (3 ; 4).
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé
    en ce que le flotteur (11) est réalisé en matériau synthétique.
EP01113485A 2000-06-23 2001-06-02 Dispositif pour le traitement de pièces métalliques allongées, en particulier pour le décapage de bandes laminées Expired - Lifetime EP1167578B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10030853A DE10030853A1 (de) 2000-06-23 2000-06-23 Vorrichtung zur Behandlung von metallischem Stranggut, insbesondere zum Beizen von Walzband
DE10030853 2000-06-23

Publications (2)

Publication Number Publication Date
EP1167578A1 EP1167578A1 (fr) 2002-01-02
EP1167578B1 true EP1167578B1 (fr) 2010-06-02

Family

ID=7646686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01113485A Expired - Lifetime EP1167578B1 (fr) 2000-06-23 2001-06-02 Dispositif pour le traitement de pièces métalliques allongées, en particulier pour le décapage de bandes laminées

Country Status (4)

Country Link
EP (1) EP1167578B1 (fr)
JP (1) JP2002053988A (fr)
AT (1) ATE469994T1 (fr)
DE (2) DE10030853A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006042416B4 (de) * 2006-09-06 2009-04-23 Sms Demag Ag Verfahren zum Beizen von Metallbändern und Vorrichtung zur Durchführung des Verfahrens
JP5679149B2 (ja) * 2010-02-05 2015-03-04 日新製鋼株式会社 ステンレス鋼帯の酸洗操業方法
CN103757654B (zh) * 2013-12-30 2016-01-06 河南星光机械制造有限公司 高效滚镀清洗系统
JP6586392B2 (ja) * 2016-04-27 2019-10-02 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 酸洗装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2234424C3 (de) * 1972-07-13 1980-10-09 Hoechst Ag, 6000 Frankfurt Verfahren und Vorrichtung zur einseitigen kontinuierlichen elektrolytischen Aufrauhung und/oder Oxidation von Aluminiumbändern
GB2031036B (en) * 1978-10-10 1982-11-03 Midland Ross Corp Liquid trestment of metal strip
ATE15236T1 (de) * 1981-02-18 1985-09-15 Mannesmann Ag Vorrichtung zur chemischen oder elektrochemischen oberflaechenbehandlung von behandlungsgut in einem erwaermten fluessigen behandlungsmedium, insbesondere bandbeizanlage.
US5248372A (en) * 1992-09-08 1993-09-28 Production Machinery Corporation Apparatus for pickling a metal sheet material
FR2701409B1 (fr) * 1993-02-12 1995-05-05 Clecim Sa Installation de traitement de bandes métalliques.
AT403699B (de) * 1996-03-14 1998-04-27 Andritz Patentverwaltung Vorrichtung zum oberflächenbehandeln mit flüssigkeiten
WO1999046426A1 (fr) * 1998-03-11 1999-09-16 Mitsubishi Heavy Industries, Ltd. Dispositif de decapage

Also Published As

Publication number Publication date
DE10030853A1 (de) 2002-01-03
ATE469994T1 (de) 2010-06-15
EP1167578A1 (fr) 2002-01-02
DE50115498D1 (de) 2010-07-15
JP2002053988A (ja) 2002-02-19

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