EP2956250B1 - Tunnel de refroidissement avec power cooling et refroidissement à flux laminaire - Google Patents

Tunnel de refroidissement avec power cooling et refroidissement à flux laminaire Download PDF

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Publication number
EP2956250B1
EP2956250B1 EP14705081.9A EP14705081A EP2956250B1 EP 2956250 B1 EP2956250 B1 EP 2956250B1 EP 14705081 A EP14705081 A EP 14705081A EP 2956250 B1 EP2956250 B1 EP 2956250B1
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EP
European Patent Office
Prior art keywords
cooling
control device
valves
pump
rolling stock
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.)
Active
Application number
EP14705081.9A
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German (de)
English (en)
Other versions
EP2956250A1 (fr
Inventor
Jian Chen
Sieglinde Ehgartner
Reinhard Karl
Erich Opitz
Florian Pöschl
Alois Seilinger
Thomas Trickl
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.)
Primetals Technologies Austria GmbH
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Primetals Technologies Austria 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
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Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP14705081.9A priority Critical patent/EP2956250B1/fr
Publication of EP2956250A1 publication Critical patent/EP2956250A1/fr
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • 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
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B21B37/76—Cooling control on the run-out table

Definitions

  • the cooling line has several Spray bars, which are supplied with liquid coolant from a reservoir via a pump and a supply system.
  • the pump works in Power Cooling mode. In laminar cooling mode, the coolant flow is guided around the pump.
  • the cooling section has a number of spray bars, by means of which the liquid coolant is applied to the flat rolling stock either only from above or both from above and below.
  • the object of the present invention is to create options for supplying the spray bars with the liquid coolant via a single supply line system and still being able to implement both power cooling and laminar cooling.
  • an operating method of the type mentioned at the outset is further developed in that the control device knows a total flow to be applied in its entirety to the flat rolling stock by means of the spray bars or the total flow is automatically determined by the control device on the basis of the partial flows and that a delivery capacity of the pump and/or or a line pressure generated by the pump in the supply line system is adjusted by the control device according to the total flow. Due to the corresponding activation of the pump by the control device, the line pressure is set between a minimum value and a maximum value. Furthermore, the opening positions of the valves can be adjusted continuously or in several stages between a respective fully closed position and a respective fully open position.
  • a cooling section for a flat rolling stock 1 has an effective area 2 through which the flat rolling stock 1 is guided.
  • a liquid coolant 4 can be applied to the effective area 2 by means of the spray bar 3i.
  • the liquid coolant 4 is supplied to the spray boom 3i via a pump 5 and a supply line system 6 from a reservoir 7 for the liquid coolant 4 .
  • the spray bars 3i are arranged both above and below a pass line 8, so that the liquid coolant 4 is applied to the flat rolling stock 1 both from above and from below by means of the spray bars 3i. In some cases, however, it can be sufficient if the spray bars 3i are arranged exclusively above the pass line 8.
  • valves 9i are preceded by valves 9i.
  • the valves 9i - more precisely: their opening positions si - can be adjusted by a control device 10 .
  • the valves 9i are controlled by the control device 10 in such a way that the opening positions si of the valves 9i are set according to a respective partial flow fi which is to be applied to the flat rolling stock 1 by means of the respective spray bar 3i.
  • a delivery rate M of the pump 5 is set by the control device in accordance with a total flow F that is to be applied in its entirety to the flat rolling stock 1 by means of the spray bars 3i.
  • a line pressure p can be set by activating the pump 5 corresponding to the total flow F, which line pressure p is generated by the pump 5 in the supply line system 6 .
  • the total flow F can be determined automatically and directly by the control device 10 by adding up the partial flows fi.
  • the control device 10 is generally designed as a software-programmable control device. This is in FIG 1 indicated by the fact that the control device 10 contains the abbreviation “uP” for microprocessor.
  • the Control device 10 programmed with a computer program 11.
  • the computer program 11 includes machine code 12 which can be executed directly by the control device 10 .
  • the execution of the machine code 12 by the control device 10 results in the corresponding design and operation of the control device 10.
  • the line pressure p in the supply line system 6 can be set between a minimum value pmin and a maximum value pmax by appropriate activation of the pump 5 by the control device 10 . Furthermore, by appropriate activation of the valves 9i by the control device 10, their open positions si can be set between a respective fully closed position si0 and a respective fully open position si1.
  • the setting of the opening positions si is according to FIG 2 continuously possible. Alternatively, a setting could be realized in several stages.
  • a respective partial flow fi corresponds to each open position si of the valves 9i. The partial flow fi is according to FIG 2 also dependent on the line pressure p.
  • the line pressure p has the maximum value pmax
  • the coolant 4 flowing through the respective valve 9i has a respective maximum flow fi1 in the respective fully open position si1.
  • the liquid coolant has a lower partial flow fiK, referred to below as the cavitation flow fiK.
  • the ratio of the respective maximum flow fi1 to the respective cavitation flow fiK is usually a maximum of 5:1. It can also be a smaller value, for example 3:1 or 2:1.
  • valves 9i are designed as throttle valves.
  • the present invention has many advantages.
  • cavitation can be avoided in a simple manner when operated as a laminar cooling system.
  • existing power cooling systems can easily be retrofitted. Only the control device 10 has to be exchanged or reprogrammed and the pump 5 has to be upgraded accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Claims (1)

  1. Procédé d'exploitation destiné à un tronçon de refroidissement pour un produit de laminage plat (1) :
    - dans lequel le produit de laminage plat (1) est guidé à travers une zone de travail (2) d'un certain nombre de rampes de pulvérisation (3i) ;
    - dans lequel un agent de refroidissement liquide (4) est acheminé aux rampes de pulvérisation (3i) par l'intermédiaire d'une pompe (5) et d'un système d'approvisionnement (6) à partir d'un réservoir (7) ;
    - dans lequel on règle des positions d'ouverture (si) de soupapes (9i) qui sont montées en amont par rapport aux rampes de pulvérisation (3i) au sein du système d'approvisionnement (6), à partir d'un mécanisme de commande (10) de manière correspondante à un courant partiel respectif (fi) qui doit être appliqué en faisant appel à la rampe de pulvérisation respective (3i) sur le produit de laminage plat (1) ;
    - dans lequel un courant total (F) qui doit être appliqué au moyen des rampes de pulvérisation (3i), dans sa totalité, sur le produit de laminage plat (1) est connu du mécanisme de commande (10) ou bien le courant total (F) est déterminé de manière automatique par le mécanisme de commande (10) sur base des courants partiels (fi) ;
    - dans lequel on règle un refoulement (M) de la pompe (5) et une pression de ligne (p) générée dans le système d'approvisionnement (6) en faisant appel à la pompe (5) à partir du mécanisme de commande (10) en fonction du courant total (F) ;
    caractérisé en ce que :
    - on règle la pression de ligne (p) entre une valeur minimale (pmin) et une valeur maximale (pmax) ;
    - on règle, de manière progressive ou en plusieurs étapes, les positions d'ouverture (si) des soupapes (9i) entre une position respective complètement fermée (si0) et une position respective complètement ouverte (s1) ;
    - dans le cas où la pression de ligne (p) présente la valeur maximale (pmax), on se trouve en présence d'au moins une position d'ouverture respective (si) des soupapes (9i) dans laquelle l'agent de refroidissement liquide (4) qui traverse la soupape respective (9i) engendre une cavitation ;
    - dans le cas où un refroidissement laminaire est mis en place, on règle, dans le système d'approvisionnement (6), une pression de ligne (p) qui est nettement inférieure à la valeur maximale (pmax) et on règle les positions d'ouverture (si) des soupapes (9i) d'une manière telle que l'on exclut toute cavitation.
EP14705081.9A 2013-02-15 2014-02-07 Tunnel de refroidissement avec power cooling et refroidissement à flux laminaire Active EP2956250B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14705081.9A EP2956250B1 (fr) 2013-02-15 2014-02-07 Tunnel de refroidissement avec power cooling et refroidissement à flux laminaire

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13155337.2A EP2767353A1 (fr) 2013-02-15 2013-02-15 Tunnel de refroidissement avec Power Cooling et refroidissement à flux laminaire
PCT/EP2014/052388 WO2014124868A1 (fr) 2013-02-15 2014-02-07 Section de refroidissement avec refroidissement intensif et refroidissement laminaire
EP14705081.9A EP2956250B1 (fr) 2013-02-15 2014-02-07 Tunnel de refroidissement avec power cooling et refroidissement à flux laminaire

Publications (2)

Publication Number Publication Date
EP2956250A1 EP2956250A1 (fr) 2015-12-23
EP2956250B1 true EP2956250B1 (fr) 2022-12-07

Family

ID=47720403

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13155337.2A Withdrawn EP2767353A1 (fr) 2013-02-15 2013-02-15 Tunnel de refroidissement avec Power Cooling et refroidissement à flux laminaire
EP14705081.9A Active EP2956250B1 (fr) 2013-02-15 2014-02-07 Tunnel de refroidissement avec power cooling et refroidissement à flux laminaire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13155337.2A Withdrawn EP2767353A1 (fr) 2013-02-15 2013-02-15 Tunnel de refroidissement avec Power Cooling et refroidissement à flux laminaire

Country Status (5)

Country Link
US (2) US10076778B2 (fr)
EP (2) EP2767353A1 (fr)
CN (1) CN105163876B (fr)
BR (1) BR112015019431B1 (fr)
WO (1) WO2014124868A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2767352A1 (fr) * 2013-02-14 2014-08-20 Siemens VAI Metals Technologies GmbH Refroidissement d'une bande métallique avec dispositif de soupapes réglé selon la position
CN105414204B (zh) * 2015-12-07 2017-11-28 武汉钢铁有限公司 用于热轧带钢的层流冷却控制***及方法
EP3495056B1 (fr) 2017-12-11 2020-09-16 Primetals Technologies Austria GmbH Commande améliorée de la gestion de l'eau d'un circuit de refroidissement
EP3599037A1 (fr) 2018-07-25 2020-01-29 Primetals Technologies Germany GmbH Section de refroidissement à réglage de flux de liquide de refroidissement à l'aide des pompes
US20200188975A1 (en) * 2018-12-12 2020-06-18 Primetals Technologies USA LLC Temperature control system
EP3760326A1 (fr) 2019-07-03 2021-01-06 Primetals Technologies Germany GmbH Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression
EP3895819B1 (fr) 2020-04-14 2023-06-07 Primetals Technologies Germany GmbH Fonctionnement d'un dispositif de refrodissement avec une pression de fonctionnement minimale
DE102020205252A1 (de) * 2020-04-24 2021-10-28 Kocks Technik Gmbh & Co Kg Vorrichtung zum Kühlen von Langprodukten und Verfahren zum Kühlen eines Langproduktes unter Verwendung derselben

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US3423254A (en) 1964-05-27 1969-01-21 Drever Co Roller pressure quench system
US4720310A (en) 1981-11-26 1988-01-19 Union Siderurgique Du Nord Et De L'est De La France (Usinor) Process for effecting the controlled cooling of metal sheets
CN2261898Y (zh) 1996-07-05 1997-09-10 鞍山钢铁公司 中厚板控制冷却装置
DE19854675A1 (de) 1998-11-26 2000-06-08 Thyssenkrupp Stahl Ag Vorrichtung zum Kühlen eines Metallbandes, insbesondere eies Warmbreitbandes
WO2014032838A1 (fr) * 2012-09-03 2014-03-06 Sms Siemag Ag Procédé et dispositif d'alimentation dynamique d'un appareil de refroidissement destiné à refroidir une bande métallique ou un autre produit laminé au moyen d'un réfrigérant

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DE20006508U1 (de) * 2000-04-08 2000-08-31 Achenbach Buschhuetten Gmbh Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinband- und Folienwalzwerke
CN2675279Y (zh) * 2003-10-24 2005-02-02 东北大学 热轧钢材控冷***稳压节能供水装置
EP1938911A1 (fr) * 2006-12-27 2008-07-02 VAI Industries (UK) Ltd. Dispositif et procédé pour refroidissement contrôlé
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US3423254A (en) 1964-05-27 1969-01-21 Drever Co Roller pressure quench system
US4720310A (en) 1981-11-26 1988-01-19 Union Siderurgique Du Nord Et De L'est De La France (Usinor) Process for effecting the controlled cooling of metal sheets
CN2261898Y (zh) 1996-07-05 1997-09-10 鞍山钢铁公司 中厚板控制冷却装置
DE19854675A1 (de) 1998-11-26 2000-06-08 Thyssenkrupp Stahl Ag Vorrichtung zum Kühlen eines Metallbandes, insbesondere eies Warmbreitbandes
WO2014032838A1 (fr) * 2012-09-03 2014-03-06 Sms Siemag Ag Procédé et dispositif d'alimentation dynamique d'un appareil de refroidissement destiné à refroidir une bande métallique ou un autre produit laminé au moyen d'un réfrigérant

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Also Published As

Publication number Publication date
EP2956250A1 (fr) 2015-12-23
US11040385B2 (en) 2021-06-22
EP2767353A1 (fr) 2014-08-20
BR112015019431B1 (pt) 2022-07-19
US10076778B2 (en) 2018-09-18
BR112015019431A2 (pt) 2017-07-18
US20150375284A1 (en) 2015-12-31
WO2014124868A1 (fr) 2014-08-21
CN105163876B (zh) 2017-12-15
CN105163876A (zh) 2015-12-16
US20180345343A1 (en) 2018-12-06

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