EP0692314B1 - Procédé et dispositif d'intensification du contact entre une bande laminée et un fluide - Google Patents

Procédé et dispositif d'intensification du contact entre une bande laminée et un fluide Download PDF

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Publication number
EP0692314B1
EP0692314B1 EP95108373A EP95108373A EP0692314B1 EP 0692314 B1 EP0692314 B1 EP 0692314B1 EP 95108373 A EP95108373 A EP 95108373A EP 95108373 A EP95108373 A EP 95108373A EP 0692314 B1 EP0692314 B1 EP 0692314B1
Authority
EP
European Patent Office
Prior art keywords
rolled strip
liquid
flow
bath
slot nozzle
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
EP95108373A
Other languages
German (de)
English (en)
Other versions
EP0692314A2 (fr
EP0692314A3 (fr
Inventor
Wolfgang Denker
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 Schloemann Siemag AG
Schloemann Siemag 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
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0692314A2 publication Critical patent/EP0692314A2/fr
Publication of EP0692314A3 publication Critical patent/EP0692314A3/fr
Application granted granted Critical
Publication of EP0692314B1 publication Critical patent/EP0692314B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the invention relates to a method and an apparatus to intensify the contact between a rolled strip and a liquid in a cooling or pickling device, wherein the liquid under pressure from a supply to an outlet member and exiting from this with an energetic flow in a closed beam with one extending across and across the width of the roll relatively narrow flow profile at high speed perpendicular to the rolled strip discharged, then the beam is continuously deflected into a flow parallel to the strip and the flow along a contact path on the rolled strip guided in parallel flow and then from the rolled strip is dissipated.
  • the belt cooling is preferably relaxed Water and a suitable for descaling the surface Pickling liquid used.
  • FR-A-2.223.096 is a cooling machine known for cooling sheet metal, consisting of two in parallel running flat walls, between which the sheet is guided becomes.
  • a cooling water flow in circulation brought below and above the Sheet metal formed chambers.
  • the cooling water flow that over Lines arranged perpendicular to the sheet on the sheet abandoned and discharged by gravity or removed from a storage container by means of a pump.
  • the belt runs through the pickling agent in the immersion bath. This results in the requirement that partially used Stain exchanged for fresh stain as soon as possible and this is fed over the bandwidth. Because it depends the pickling effect and accordingly the permissible speed of the strip as it passes through the pickling bath. With others The duration of the tape is within the words Pass-through route in direct connection with to be conveyed and fresh stain to be brought into contact with the belt.
  • the invention has for its object a method and specify a device with which it is possible to sufficiently large amount of coolant or pickling liquid in intensive contact with a rolled strip for cooling or pickling bring with the liquid with predetermined Flow energy and in an even distribution over the Width and length of a wetting surface of the belt without danger a hooking of the band to be threaded can be fed and a corresponding device a particularly simple and should have robust construction.
  • the problem is solved with a method of Preamble of claim 1 type with the invention in that the exit of the closed Liquid jet from the mouthpiece of the as a slot nozzle trained outlet member of the cooling or pickling device below the level of a still liquid bath at such a high speed that by transmission from kinetic energy of the highly accelerated liquid jet to the stationary one Parts of this liquid bath entrained and are conveyed through the contact path.
  • a device for performing the method is with a Storage container for the liquid with attached Booster pump designed and with a pressure line and one connected to it, at least one Outlet member for the pressure chamber containing liquid equipped, with the exit organ one over the Width of the band extending slot nozzle, the transverse to Wide, relatively narrow mouthpiece perpendicular to the band is directed against this, to the slot nozzle downstream then a mouthpiece lengthening Flow guide body is arranged, one in the direction which forms a continuously curved flow guide surface downstream after deflection by approximately 90 ° parallel to the belt and in given distance to this below Formation of a contact line extends into one Liquid drain channel opens.
  • the cooling or pickling device is so deep immersed in a still liquid bath that the The mouthpiece of the slot nozzle is below the bath level and that forming the contact path parallel to the rolled strip extending part of the flow guide body above the Bath level.
  • the invention is based on a pure represented schematic drawing. As the figure shows the belt (1) moves in the direction of the arrow (2) over the Device (40) for supplying liquid.
  • the Device (40) occasionally in any number can be arranged one behind the other.
  • the device (40) has a storage container (20) for the Liquid with a booster pump arranged on it (21) and a pressure line (22). To the pressure line (22) a pressure chamber (23) closes with an outlet member (24). This is considered to be across the width of the band (1) extending slot nozzle (24) with a transverse to the width relatively narrow mouthpiece (25). The slot nozzle (24) with its mouthpiece (25) is perpendicular to the band (1) directed against this. This will work under all circumstances avoided that a newly threaded band (1) on or in the Can hook nozzle (24). At the slot nozzle (24) or that Mouthpiece (25) downstream is a Flow guide body (27) arranged.
  • This has an in Direction of flow flow continuously curved downstream (28), which are parallel after deflection by approximately 90 ° to the belt (1) and at a specified distance from it below Forming a contact path (26) extends. This ends into a liquid drain channel (29).
  • the contact route (26) is between the flow guide surface (28) and the belt (1) formed with a predetermined flow cross-section and has a predetermined length.
  • a cooler (30) is arranged in the liquid drain channel (29) . It is on the tape (1) the coolant transferred heat and dissipated to this Way ensured that the circuit of the coolant is not is sustainably heated or can be supported by the Liquid in the closed circuit the temperature of the Liquid kept at a certain temperature level become.
  • the figure further shows that the device (40) in turn is trained to be at rest Liquid (13) in the form of a liquid bath with the Bath level (12) partially immersed.
  • the resting Liquid (13) parts of this entrained and through the Contact path (26) within the flow (11) conveyed through.
  • Large quantities of liquid are in Movement set and through the contact path (26) promoted.
  • the figure also shows that the design of the device (40) is very simple and robust. It results from the forced flow (11) in the contact path (26) a large Wetting distance with a defined relative speed between the flow (26) and the belt (1). Next is too notice that at low belt speed the Flow direction of the contact section also the direction of tape travel can be rectified.
  • the device is (40) for supplying liquid by 180 ° compared to the Display rotated. Because in the contact line (26) no high specific pressure against the tape (1) is built up and also a uniform Pressure distribution over the cooling or pickling cross section given is the method or the trained for this Device also for cooling thinly cast tapes be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Nozzles (AREA)
  • Reciprocating Pumps (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Extraction Or Liquid Replacement (AREA)

Claims (5)

  1. Procédé pour l'intensification du contact entre une bande laminée (1) et un liquide dans une installation de refroidissement ou de décapage (40), le liquide étant alimenté sous pression à partir d'un réservoir (20) dans un organe d'évacuation et sortant de celui-ci (avec un courant riche en énergie), en un faisceau fermé présentant un profil d'écoulement s'étendant sur la largeur de la bande laminée (1) en étant relativement étroit transversalement par rapport celle-ci, et arrivant verticalement avec une grande vitesse contre la bande laminée (1), le faisceau étant retourné en continu dans un courant parallèle au sens de déplacement de la bande et le courant étant guidé, via une zone de contact (26), le long de la bande laminée (1) avec un courant (11) parallèle puis étant évacué de la bande laminée (1) à nouveau dans le réservoir (20), caractérisé en ce que la sortie du faisceau (10) fermé de liquide de l'ajustage (25) de l'organe de sortie exécuté sous ferme d'un gicleur à fente (24) du dispositif de refroidissement ou de décapage (40) est effectuée sous le niveau (12) d'un bain de liquide (13) au repos à une vitesse tellement élevée que la transmission de l'énergie cinétique du faisceau de liquide (10) fortement accéléré au bain de liquide entraíne des particules de ce bain de liquide (13) et les transporte à travers la zone de contact (26).
  2. Procédé selon la revendication 1, caractérisé en ce que le faisceau de liquide (10), évacué d'abord verticalement contre la bande laminée (1) par le gicleur à fente (24) est tourné en continu, via un corps orientant le courant (27), dont la surface orientant le courant (28) prolonge l'ajustage (25) du gicleur à fente (24) vers l'aval (dans le sens de la flèche (11)), d'environ 90°, parallèlement à la bande laminée (1).
  3. Procédé selon la revendication 1 ou 2, caractérisé en que, lorsque la vitesse de la bande laminée diminue, la direction du courant (11) du liquide dans la zone de contact (26) correspond à la direction d'avancement de la bande laminée (dans le sens de la flèche (2)).
  4. Dispositif présentant
    a) une chambre de pression (23), qui est reliée à une pompe d'augmentation de la pression (21) via une conduite sous pression (22) et dont l'organe de sortie est exécuté sous forme d'un gicleur à fente (24) s'étendant sur toute la largeur de la bande laminée (1), et
    b) un corps (27) orientant le courant, prolongeant, vers aval, l'ajutage (25) du gicleur à fente (24), ledit corps formant une surface (28) d'orientation du courant courbée vers l'aval, qui s'étend, après le retournement d'environ 90°, parallèlement à la bande laminée (1) en formant une zone de contact (26) et qui débouche dans un canal d'évacuation du liquide (29), caractérisé en ce que, pour la réalisation du procédé selon la revendication 1, 2 ou 3, le dispositif de refroidissement ou de décapage (40) plonge dans un bain de liquide (13) au repos à une profondeur telle que l'ajustage (25) du gicleur à fente (24) se situe sous le niveau du bain (12) et que la partie du corps orientant le courant (27), formant la zone de contact (26), s'étendant parallèlement à la bande laminée (1), se trouve au-dessus du niveau du bain (12).
  5. Dispositif selon la revendication 4, caractérisé en ce que le dispositif (40) avec la surface (28) orientant le courant est disposé dans la même direction que ou dans la direction contraire de la direction d'avancement de la bande.
EP95108373A 1994-06-16 1995-06-01 Procédé et dispositif d'intensification du contact entre une bande laminée et un fluide Expired - Lifetime EP0692314B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4421082A DE4421082A1 (de) 1994-06-16 1994-06-16 Verfahren und Vorrichtung zur Intensivierung des Kontaktes zwischen einem Walzband mit einer Flüssigkeit
DE4421082 1994-06-16

Publications (3)

Publication Number Publication Date
EP0692314A2 EP0692314A2 (fr) 1996-01-17
EP0692314A3 EP0692314A3 (fr) 1996-12-11
EP0692314B1 true EP0692314B1 (fr) 2000-03-15

Family

ID=6520761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108373A Expired - Lifetime EP0692314B1 (fr) 1994-06-16 1995-06-01 Procédé et dispositif d'intensification du contact entre une bande laminée et un fluide

Country Status (4)

Country Link
EP (1) EP0692314B1 (fr)
JP (1) JPH0857524A (fr)
DE (2) DE4421082A1 (fr)
ES (1) ES2144541T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19702639C1 (de) * 1997-01-25 1998-06-18 Sundwiger Eisen Maschinen Vorrichtung und Verfahren zum kontinuierlichen chemischen Entzundern von Metallband
DE10161985C1 (de) * 2001-12-17 2003-07-03 Airmatic Ges Umwelt & Tech Mbh Vorrichtung zur Abreinigung von über Umlenkrollen geführten Metallbändern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2223096B1 (fr) * 1973-03-26 1976-09-10 Usinor
FR2261816B1 (fr) * 1974-02-21 1976-12-03 Pechiney Aluminium
JPH0680531B2 (ja) * 1984-12-11 1994-10-12 富士写真フイルム株式会社 磁気記録媒体塗布方法
JP2684485B2 (ja) * 1992-02-13 1997-12-03 富士写真フイルム株式会社 塗布装置

Also Published As

Publication number Publication date
JPH0857524A (ja) 1996-03-05
DE4421082A1 (de) 1995-12-21
DE59507983D1 (de) 2000-04-20
EP0692314A2 (fr) 1996-01-17
EP0692314A3 (fr) 1996-12-11
ES2144541T3 (es) 2000-06-16

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