EP0795629A1 - Appareil de traitement de surfaces de bandes à l'aide de liquides - Google Patents

Appareil de traitement de surfaces de bandes à l'aide de liquides Download PDF

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Publication number
EP0795629A1
EP0795629A1 EP97101302A EP97101302A EP0795629A1 EP 0795629 A1 EP0795629 A1 EP 0795629A1 EP 97101302 A EP97101302 A EP 97101302A EP 97101302 A EP97101302 A EP 97101302A EP 0795629 A1 EP0795629 A1 EP 0795629A1
Authority
EP
European Patent Office
Prior art keywords
plate
treatment
liquid
container
belt
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.)
Granted
Application number
EP97101302A
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German (de)
English (en)
Other versions
EP0795629B1 (fr
Inventor
Peter Dr. Ing. Gravert
Günther Dipl. Ing. Hiden
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.)
Andritz AG
Original Assignee
Andritz Patentverwaltungs 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 Andritz Patentverwaltungs GmbH filed Critical Andritz Patentverwaltungs GmbH
Publication of EP0795629A1 publication Critical patent/EP0795629A1/fr
Application granted granted Critical
Publication of EP0795629B1 publication Critical patent/EP0795629B1/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
    • C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by 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
    • C23G3/021—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by dipping

Definitions

  • the invention relates to a device for the surface treatment of strips with liquids, in particular for pickling rolled metal strips, in a trough-shaped container, in particular closed off by a lid.
  • the mean bath depth can only be reduced to a lower limit determined by the maximum belt speed. Due to the drag effect of the moving belt, the treatment medium in the treatment bath is entrained in the direction of the belt movement. The result is an inclined liquid level with a correspondingly excessive bath depth at the exit of the strip from the treatment bath and a correspondingly reduced bath depth at the entry of the strip into the treatment bath.
  • higher speeds e.g. at 200 mm average bath depth and 20 m bath length above approx. 200 m / min belt speed
  • there is an empty pump in the area where the belt enters the treatment bath so that the immersion length of the belt in the treatment medium is shortened accordingly and thus the Length of the treatment bath is no longer fully utilized.
  • the middle bathroom mirror must therefore be raised to avoid draining.
  • the performance limit of a treatment bath with a free surface is therefore given by the optimum between shortening the pickling bath due to drag effect and reduced pickling effect due to greater mean bath depth.
  • a known measure for achieving a low mean bath depth at high speeds is the formation of a closed treatment channel.
  • the bath depth is thereby fixed to the height of the treatment channel.
  • the band To prevent the treatment channel from being emptied, the band must exit the treatment channel using methods such as e.g. in EP 0 655 519 A1, are hydrodynamically sealed against the dynamic pressure of the towing effect.
  • the hydrodynamic seal requires a considerable amount of energy, which must be additionally applied in comparison to treatment baths with a free surface.
  • due to the high back pressure due to the sealing of the treatment channel at the strip outlet the necessary supply of fresh treatment medium is made more difficult and is associated with high energy expenditure.
  • the purpose of this invention is to improve the performance limit of a treatment bath with a free surface, so that the disadvantages of a closed treatment channel are avoided.
  • the invention is characterized in that a plate immersed in the liquid, in particular in the pickling medium, is arranged above the belt, which is aligned approximately parallel to the belt and the treatment bath in a treatment area below the plate and a reflux area for the liquid, in particular that Pickling medium, divides above the plate.
  • Another advantage of the proposed device is that a treatment channel with a small bath depth is formed by the plate according to the invention, while at the same time the free surface of the treatment medium is retained and the drag effect of the belt is used for a targeted circulation and mixing of the treatment medium in the treatment container.
  • a particularly favorable effect is achieved if the plate extends almost over the entire length of the treatment container and only at the beginning and end of the container are passages between the plate and the container wall or in the plate through which the liquid, in particular the pickling medium , can flow from the lower treatment area to the upper reflux area and vice versa.
  • the treatment liquid is thus conducted completely from the area of the tape outlet to the area of the tape inlet.
  • the plate consists of several individual plates arranged one after the other, and that passage gaps are left between the plates, through which the liquid, in particular the pickling medium, can flow from the lower treatment area to the upper reflux area and vice versa.
  • circulation of the treatment liquid is achieved in partial areas of the treatment container, and on the other hand the treatment liquid flows better when the treatment container is emptied.
  • the plate contains openings through which the liquid, in particular the pickling medium, can circulate between the lower treatment area and the upper reflux area.
  • a particularly favorable effect is achieved if the plate has a V-shaped cross section, as a result of which flat contact with flat belts can be avoided and the flow of treatment liquid is improved when emptying.
  • a particularly favorable effect is achieved if the plate on the side facing the belt is provided with transverse ribs which on the one hand brake the flow by dragging and on the other hand cause increased turbulence in the treatment room.
  • the separation into a treatment area and a reflux area can advantageously be used for a targeted supply of fresh treatment liquid, in which the treatment liquid, in particular pickling medium, is supplied to the sides of the container through inlets and introduced into the treatment room below the plate by means of a jet effect, or in that the Liquid, in particular the pickling medium, is fed below the belt through the bottom of the container.
  • the injection is preferably carried out in the area of the belt inlet so that the freshly supplied treatment liquid is first guided along the belt before it recirculates in the treatment tank through the reflux area formed by the plate.
  • a particularly favorable design of the injection results if it is directed at an angle against the direction of movement of the belt. This is causing a reduction in the drag effect of the belt and therefore brings about a further reduction in the accumulation height in the area of the belt outlet.
  • An advantageous embodiment of the device according to the invention results when the plate is fastened to the lid of the treatment container and is lifted by the lid when the lid is opened, the plate preferably being able to move upward within certain limits in order to avoid collisions with the belt to be able to dodge.
  • FIG. 1 shows a pickling section according to the invention
  • FIG. 2 shows a section through the pickling section shown in FIG. 1
  • FIG. 3 shows a top view of the pickling section shown in FIG. 1
  • 4 shows a variant of the top view
  • FIG. 5 shows a variant of the cross section of the pickling section shown in FIG. 1
  • FIG. 6 shows a variant of the plate with transverse ribs.
  • the system is shown in a very simplified form in the drawing figures in order to explain the principle.
  • Fig. 1 shows the exemplary scheme of a pickling section with the associated pipelines, pumps, heat exchangers and the circulation tank.
  • the strip 1 to be treated is guided into the pickling section via squeeze rollers 2, dips into the liquid bath 3 and is led out of the pickling section again at the other end of the pickling section by the squeeze rollers 4.
  • the treatment liquid 5 is fed from the circulation tank 6 via the pipes 7, the pump 8 and the heat exchanger 9 through the inlets 10 in the bottom and inlets 11 in the side wall into the liquid bath 3 and via the overflow stones 12a at the inlet and 12b at the outlet of the pickling section derived in receptacles 13a, 13b and returned from there via the pipes 14a, 14b into the circulation tank 6.
  • the inlets 10 in the floor are directed obliquely against the tape running direction 15 to counteract the flow due to the drag effect of the belt 1.
  • the plate 16 according to the invention is arranged in the embodiment of a continuous plate in the liquid bath 3.
  • the arrows 17 indicate the flow around the plate 16 caused by the drag effect of the belt 1.
  • Fig. 2 shows a section A-A through the pickling section shown in Fig. 1.
  • the liquid level is marked with 18.
  • the inlets 11 in the side wall are arranged so that the treatment liquid 5 flows into the space between the plate 16 and the belt 1.
  • the plate 16 is fastened to the cover 20 with the brackets 19 and rests laterally on supporting stones 21.
  • FIG. 3 shows a top view of the pickling section shown in FIG. 1, the cover of the pickling section and the band in the region of the liquid bath 3 not being shown.
  • the plate 22 is shown in this figure in the variant of a perforated plate.
  • the inlets 11 in the side wall are directed obliquely against the tape running direction 15 in order to counteract the flow due to the drag effect of the tape 1.
  • FIG. 4 shows, like FIG. 3, the top view of the pickling section shown in FIG. 1, but with the variant of an interrupted plate 23.
  • FIG. 5 shows, like FIG. 2, the section AA through the pickling section shown in FIG. 1, but with the embodiment variant of a V-shaped plate 24.
  • 6 shows a section of the pickling section with the belt 1, the squeezing rollers 4 and the plate 16.
  • the plate 16 here has transverse ribs 25 on which the flow is slowed down, which results in increased turbulence and thus improved pickling effect.
  • the application is described on the basis of a pickling line, but can also be used in other processes in which a belt with high Speed is transported through a container with treatment liquid.

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)
  • Electroplating Methods And Accessories (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • ing And Chemical Polishing (AREA)
EP97101302A 1996-03-14 1997-01-29 Appareil de traitement de surfaces de bandes à l'aide de liquides Expired - Lifetime EP0795629B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT478/96 1996-03-14
AT47896 1996-03-14
AT0047896A AT403699B (de) 1996-03-14 1996-03-14 Vorrichtung zum oberflächenbehandeln mit flüssigkeiten

Publications (2)

Publication Number Publication Date
EP0795629A1 true EP0795629A1 (fr) 1997-09-17
EP0795629B1 EP0795629B1 (fr) 2004-07-21

Family

ID=3491686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101302A Expired - Lifetime EP0795629B1 (fr) 1996-03-14 1997-01-29 Appareil de traitement de surfaces de bandes à l'aide de liquides

Country Status (12)

Country Link
US (2) US5853495A (fr)
EP (1) EP0795629B1 (fr)
JP (1) JPH108274A (fr)
KR (1) KR970065774A (fr)
CN (1) CN1087360C (fr)
AT (1) AT403699B (fr)
BR (1) BR9701301A (fr)
CA (1) CA2199768A1 (fr)
DE (1) DE59711779D1 (fr)
ID (1) ID16199A (fr)
RU (1) RU2192506C2 (fr)
TW (1) TW367376B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926268A1 (fr) * 1997-11-28 1999-06-30 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Procédé et dispostif pour guider des bandes à travers des bains de traitement
EP0984080A1 (fr) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Dispositif de decapage
EP0984079A1 (fr) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Dispositif de decapage
EP1054079A1 (fr) * 1999-05-20 2000-11-22 Danieli Corporation Procédé et appareil pour le traitement à grande vitesse de bandes
EP1149935A2 (fr) * 2000-04-27 2001-10-31 SMS Demag AG Procédé et appareil pour traiter des surfaces de bandes métalliques, en particulier pour décaper des bandes laminées
EP1167578A1 (fr) * 2000-06-23 2002-01-02 SMS Demag AG Dispositif pour le traitement de pièces métalliques allongées, en particulier pour le décapage de bandes laminées
EP1276918A1 (fr) * 2000-04-27 2003-01-22 SMS Demag Aktiengesellschaft Procede et dispositif destines a traiter les surfaces d'un materiau metallique en bande, en particulier a decaper un materiau lamine
WO2008148451A1 (fr) * 2007-06-06 2008-12-11 Siemens Vai Metals Technologies Sas Installation de decapage de bandes metalliques, notamment en acier

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403699B (de) * 1996-03-14 1998-04-27 Andritz Patentverwaltung Vorrichtung zum oberflächenbehandeln mit flüssigkeiten
FR2784998B1 (fr) * 1998-10-22 2001-01-12 Kvaerner Metals Clecim Installation de decapage d'une bande metallique
AT408765B (de) * 1999-03-05 2002-03-25 Andritz Ag Maschf Anlage zur kontinuierlichen behandlung von stahlbändern
RU2551323C2 (ru) * 2013-07-19 2015-05-20 Сергей Иванович Афанасьев Устройство для обработки металлической ленты в рулоне
US9970141B2 (en) * 2015-02-18 2018-05-15 Morrison Textile Machinery Company Apparatus and method for washing an elongate textile article
JP2019529714A (ja) * 2016-09-27 2019-10-17 ポスコＰｏｓｃｏ 均一処理装置及び酸洗装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058216A1 (fr) * 1981-02-18 1982-08-25 MANNESMANN Aktiengesellschaft Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes
JPS6141783A (ja) * 1984-08-06 1986-02-28 Hitachi Ltd 高速酸洗装置
DE4108516A1 (de) * 1990-03-16 1991-09-19 Hitachi Ltd Hochgeschwindigkeits-beizvorrichtung und hochgeschwindigkeits-beizverfahren
EP0655519A1 (fr) * 1993-11-30 1995-05-31 DANIELI & C. OFFICINE MECCANICHE S.p.A. Plaques possédant un scellement hydrodynamique et un support hydrostatique pour installation de décopage et/ou de traitement chimique et/ou nettoyage de bandes métalliques
FR2721235A1 (fr) * 1994-06-20 1995-12-22 Clecim Sa Installation de traitement, notamment pour le décapage d'une bande métallique.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT295956B (de) * 1969-07-08 1972-01-25 Ruthner Ind Planungs Ag Verfahren und Vorrichtung zur Führung von Tafeln oder endlosen Bändern durch aus flachen Rinnen gebildete Behälter
DE3629894A1 (de) * 1986-08-29 1988-03-03 Mannesmann Ag Anlage zur oberflaechenbehandlung von kontinuierlich durchlaufenden baendern, insbesondere beizanlage
US4850378A (en) * 1987-10-14 1989-07-25 Nelson Steel Steel pickling apparatus
JP3064080B2 (ja) * 1991-01-16 2000-07-12 三菱重工業株式会社 噴流酸洗装置
DE4240572A1 (de) * 1992-12-03 1994-06-09 Schloemann Siemag Ag Beizanlage und Verfahren zum Betreiben der Beizanlage
AT403699B (de) * 1996-03-14 1998-04-27 Andritz Patentverwaltung Vorrichtung zum oberflächenbehandeln mit flüssigkeiten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058216A1 (fr) * 1981-02-18 1982-08-25 MANNESMANN Aktiengesellschaft Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes
JPS6141783A (ja) * 1984-08-06 1986-02-28 Hitachi Ltd 高速酸洗装置
DE4108516A1 (de) * 1990-03-16 1991-09-19 Hitachi Ltd Hochgeschwindigkeits-beizvorrichtung und hochgeschwindigkeits-beizverfahren
EP0655519A1 (fr) * 1993-11-30 1995-05-31 DANIELI & C. OFFICINE MECCANICHE S.p.A. Plaques possédant un scellement hydrodynamique et un support hydrostatique pour installation de décopage et/ou de traitement chimique et/ou nettoyage de bandes métalliques
FR2721235A1 (fr) * 1994-06-20 1995-12-22 Clecim Sa Installation de traitement, notamment pour le décapage d'une bande métallique.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8615, Derwent World Patents Index; Class M12, AN 86-097185, XP002030888 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318648C (zh) * 1997-11-28 2007-05-30 安德里茨-专利管理有限公司 改进的带材导向方法和装置
EP0926268A1 (fr) * 1997-11-28 1999-06-30 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Procédé et dispostif pour guider des bandes à travers des bains de traitement
US6340028B1 (en) 1998-03-11 2002-01-22 Mitsubishi Heavy Industries, Ltd. Pickling device
EP0984080A1 (fr) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Dispositif de decapage
EP0984079A1 (fr) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Dispositif de decapage
EP0984079A4 (fr) * 1998-03-11 2000-09-27 Mitsubishi Heavy Ind Ltd Dispositif de decapage
EP0984080A4 (fr) * 1998-03-11 2000-10-04 Mitsubishi Heavy Ind Ltd Dispositif de decapage
US6305096B1 (en) 1998-03-11 2001-10-23 Mitsubishi Heavy Industries, Ltd. Pickling device
US6551413B2 (en) 1999-05-20 2003-04-22 Danieli Technology, Inc. High speed pickling with recycling of acid
US6260563B1 (en) 1999-05-20 2001-07-17 Danieli Technology, Inc. High speed pickling with recycling of acid
EP1054079A1 (fr) * 1999-05-20 2000-11-22 Danieli Corporation Procédé et appareil pour le traitement à grande vitesse de bandes
EP1149935A2 (fr) * 2000-04-27 2001-10-31 SMS Demag AG Procédé et appareil pour traiter des surfaces de bandes métalliques, en particulier pour décaper des bandes laminées
EP1276918A1 (fr) * 2000-04-27 2003-01-22 SMS Demag Aktiengesellschaft Procede et dispositif destines a traiter les surfaces d'un materiau metallique en bande, en particulier a decaper un materiau lamine
EP1149935A3 (fr) * 2000-04-27 2003-07-23 SMS Demag AG Procédé et appareil pour traiter des surfaces de bandes métalliques, en particulier pour décaper des bandes laminées
EP1167578A1 (fr) * 2000-06-23 2002-01-02 SMS Demag AG Dispositif pour le traitement de pièces métalliques allongées, en particulier pour le décapage de bandes laminées
WO2008148451A1 (fr) * 2007-06-06 2008-12-11 Siemens Vai Metals Technologies Sas Installation de decapage de bandes metalliques, notamment en acier

Also Published As

Publication number Publication date
ID16199A (id) 1997-09-11
TW367376B (en) 1999-08-21
CN1164580A (zh) 1997-11-12
KR970065774A (ko) 1997-10-13
BR9701301A (pt) 1998-09-01
ATA47896A (de) 1997-09-15
AT403699B (de) 1998-04-27
RU2192506C2 (ru) 2002-11-10
CA2199768A1 (fr) 1997-09-14
JPH108274A (ja) 1998-01-13
EP0795629B1 (fr) 2004-07-21
MX9701801A (es) 1997-09-30
DE59711779D1 (de) 2004-08-26
CN1087360C (zh) 2002-07-10
USRE37973E1 (en) 2003-02-04
US5853495A (en) 1998-12-29

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