EP0058216B1 - Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes - Google Patents

Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes Download PDF

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Publication number
EP0058216B1
EP0058216B1 EP81101143A EP81101143A EP0058216B1 EP 0058216 B1 EP0058216 B1 EP 0058216B1 EP 81101143 A EP81101143 A EP 81101143A EP 81101143 A EP81101143 A EP 81101143A EP 0058216 B1 EP0058216 B1 EP 0058216B1
Authority
EP
European Patent Office
Prior art keywords
immersing
members
liquid
tank
bath
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
Application number
EP81101143A
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German (de)
English (en)
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EP0058216A1 (fr
Inventor
Walter Mindt
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8187578&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0058216(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to EP81101143A priority Critical patent/EP0058216B1/fr
Priority to AT81101143T priority patent/ATE15236T1/de
Publication of EP0058216A1 publication Critical patent/EP0058216A1/fr
Application granted granted Critical
Publication of EP0058216B1 publication Critical patent/EP0058216B1/fr
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/02—Tanks; Installations therefor
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Definitions

  • the invention relates to a device for chemical or electro-chemical surface treatment of material to be treated in a heated liquid treatment medium, consisting of a liquid container provided with a lid, in particular a strip pickling system, in which the bath surface can be partially covered to reduce the evaporation surface.
  • a heated liquid treatment medium consisting of a liquid container provided with a lid, in particular a strip pickling system, in which the bath surface can be partially covered to reduce the evaporation surface.
  • the invention thus relates to all types of so-called process lines, in which materials such as. B. steel strip, wire or pipes are treated on the surface.
  • the surface treatment can e.g. B. pickling, cleaning, coating, etc. include.
  • the material to be treated can pass through the treatment medium or be placed in the liquid bath over a specific treatment time.
  • the problem underlying the invention is explained below with reference to a strip pickling line for continuous strip steel.
  • the bath surface is between 1000 and 200 mm above the surface. of the continuous steel strip.
  • these containers have free evaporation surfaces from 2 to 400 m 2 .
  • the total heat requirement is approx. 21 million kJ / h (5 million kcal / h).
  • the evaporation loss of these plants i. H. the resulting gas can be removed from the system by a suitable extraction system, whereby in most cases these extracted gases are aggressive and must be cleaned by a cleaning system in accordance with legal regulations before they are released into the atmosphere via an exhaust air chimney.
  • the object of the invention is to ensure, in addition to the covering of the evaporation surface by displacement bodies, which serve to reduce evaporation losses in the same way as the known floating plates, that the gas volume to be extracted is also minimized.
  • the solution to this problem consists according to the invention in the characterizing features of claim 1. This ensures that the displacement bodies reach up to the container lids and only the space above the reduced bath surface for receiving the gases produced. Vapors are available, with the result that not only is the suction volume reduced, but the downstream cleaning system can also be made smaller. In addition, no openings in the container lid are required to remove the displacers.
  • the saving in thermal energy in a strip pickling line according to the invention is approximately 90% of the share of the evaporation energy and 45% on the share of total thermal energy.
  • the saving on the suction volume is approx. 90%.
  • the effect of the treatment medium on the material to be treated can be increased to 10%.
  • the displacement bodies are expediently fastened to the container lids so that when the lids are closed they enter their immersed operative position.
  • the displacement bodies can also be placed on supports arranged inside the container, for example on electrodes.
  • the strip pickling system shown in FIG. 1 serves for pickling a steel strip 1 which is pulled through the pickling tank 7.
  • the pickling tank is filled with an inorganic acid as the treatment medium, the evaporation surface 3 of which is greatly reduced by immersing displacement bodies 4.
  • the U-shaped displacement bodies designed as hollow bodies are each attached to a container cover 5 and adapted to the course of the belt, i.e. they have a flat bottom. In addition, all displacement bodies are protected on the underside with wear ribs 6 against mechanical damage from the belt 1.
  • Fig. 2 clearly shows that the displacement body with its outline compared to the horizontal cross section of the liquid bath 2 leave only a minimal evaporation surface 3, which surrounds the displacement body. Since the displacement bodies in their operative position shown in FIG. 2 form a unit with the container lids 5, the free space above the evaporation surface 3 is also kept small. If the displacers 4 are placed on supports arranged inside the container (not shown), the evaporation surface can be reduced even further, since fastening the displacers to pivotably mounted container lids 5 due to the pivoting arrangement of the displacers a certain amount between the side walls of the displacers and a side wall of the container requires.

Claims (5)

1. Appareil pour le traitement chimique ou électrochimique de surfaces de pièces dans un agent de traitement liquide et chauffé, comportant un bac (7) contenant l'agent liquid et pourvu d'un couvercle (5), en particulier pour une installation de décapage de bandes, dans lequel la surface du bain est réduite, dans le but de diminuer la surface d'évaporation, au moyen de corps de refoulement (4) qui peuvent être éloignés de leur position active pour l'introduction et l'extraction de la pièce à traiter, caractérisé en ce que les corps de refoulement (4) présentent une section droite en forme de U et forment une seule pièce avec le couvercle (5) du bac, dans leurs positions actives recouvertes, et le profil des corps de refoulement laisse libre, par rapport à la section droite horizontale du bain liquide (2), une surface d'évaporation minimale entourant les corps de refoulement.
2. Appareil suivant la revendication 1, caractérisé en ce que les corps de refoulement (4) sont fixés aux couvercles (5) du bac.
3. Appareil suivant la revendication 1, caractérisé en ce que les corps de refoulement (4) peuvent prendre appui sur des supports disposés à l'intérieur du bac (7).
4. Appareil suivant la revendication 1, caractérisé en ce que les corps de refoulement (4) sont pourvus, sur leurs faces inférieures, de nervures d'usure (6).
5. Appareil suivant la revendication 1, caractérisé en ce que les corps de refoulement (4) s'étendent, par leurs faces inférieures, jusqu'à proximité immédiate de la pièce à traiter (1) traversant le bain.
EP81101143A 1981-02-18 1981-02-18 Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes Expired EP0058216B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP81101143A EP0058216B1 (fr) 1981-02-18 1981-02-18 Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes
AT81101143T ATE15236T1 (de) 1981-02-18 1981-02-18 Vorrichtung zur chemischen oder elektrochemischen oberflaechenbehandlung von behandlungsgut in einem erwaermten fluessigen behandlungsmedium, insbesondere bandbeizanlage.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81101143A EP0058216B1 (fr) 1981-02-18 1981-02-18 Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes

Publications (2)

Publication Number Publication Date
EP0058216A1 EP0058216A1 (fr) 1982-08-25
EP0058216B1 true EP0058216B1 (fr) 1985-08-28

Family

ID=8187578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101143A Expired EP0058216B1 (fr) 1981-02-18 1981-02-18 Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes

Country Status (2)

Country Link
EP (1) EP0058216B1 (fr)
AT (1) ATE15236T1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0252907A1 (fr) * 1986-01-13 1988-01-20 Maschinenfabrik Andritz Actiengesellschaft Dispositif et procede pour le traitement de surface de feuillards avec des liquides
DE3629894A1 (de) * 1986-08-29 1988-03-03 Mannesmann Ag Anlage zur oberflaechenbehandlung von kontinuierlich durchlaufenden baendern, insbesondere beizanlage
ATE57717T1 (de) * 1987-02-05 1990-11-15 Andritz Ag Maschf Vorrichtung und verfahren zur oberflaechenbehandlung von baendern mit fluessigkeiten.
BE1005217A3 (fr) * 1990-10-08 1993-06-01 Four Industriel Belge Procede et dispositif de degraissage et de decapage de fils ou rubans metalliques ou d'elements analogues.
DE4125771A1 (de) * 1991-08-03 1993-02-04 Kodak Ag Silberrueckgewinnungsvorrichtung
DE4430567C1 (de) * 1994-08-30 1996-04-04 Sundwiger Eisen Maschinen Vorrichtung zur Oberflächenbehandlung von Behandlungsgut mittels einer Behandlungsflüssigkeit, insbesondere Bandbeizanlage
AT403699B (de) * 1996-03-14 1998-04-27 Andritz Patentverwaltung Vorrichtung zum oberflächenbehandeln mit flüssigkeiten
AT407759B (de) * 1997-11-28 2001-06-25 Andritz Patentverwaltung Verfahren und vorrichtung zum oberflächenbehandeln von bändern mit flüssigkeiten
US6340028B1 (en) 1998-03-11 2002-01-22 Mitsubishi Heavy Industries, Ltd. Pickling device
US6305096B1 (en) 1998-03-11 2001-10-23 Mitsubishi Heavy Industries, Ltd. Pickling device
DE10020634A1 (de) * 2000-04-27 2001-10-31 Sms Demag Ag Turbulenzbeize mit seitlicher Eindüsung
DE10030853A1 (de) * 2000-06-23 2002-01-03 Sms Demag Ag Vorrichtung zur Behandlung von metallischem Stranggut, insbesondere zum Beizen von Walzband

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628627A (en) * 1947-08-09 1953-02-17 Ernest L Huff Apparatus for treating continuous products
JPS4611561Y1 (fr) * 1967-12-12 1971-04-21

Also Published As

Publication number Publication date
EP0058216A1 (fr) 1982-08-25
ATE15236T1 (de) 1985-09-15

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