EP2767353A1 - 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
EP2767353A1
EP2767353A1 EP13155337.2A EP13155337A EP2767353A1 EP 2767353 A1 EP2767353 A1 EP 2767353A1 EP 13155337 A EP13155337 A EP 13155337A EP 2767353 A1 EP2767353 A1 EP 2767353A1
Authority
EP
European Patent Office
Prior art keywords
valves
rolling stock
pump
flat rolling
supply system
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.)
Withdrawn
Application number
EP13155337.2A
Other languages
German (de)
English (en)
Inventor
Jian Dr. Chen
Sieglinde Ehgartner
Reinhard Dr. 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
Original Assignee
Siemens VAI Metals Technologies GmbH Austria
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=47720403&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2767353(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Priority to EP13155337.2A priority Critical patent/EP2767353A1/fr
Priority to US14/768,097 priority patent/US10076778B2/en
Priority to PCT/EP2014/052388 priority patent/WO2014124868A1/fr
Priority to BR112015019431-1A priority patent/BR112015019431B1/pt
Priority to CN201480009116.XA priority patent/CN105163876B/zh
Priority to EP14705081.9A priority patent/EP2956250B1/fr
Publication of EP2767353A1 publication Critical patent/EP2767353A1/fr
Priority to US16/059,125 priority patent/US11040385B2/en
Withdrawn legal-status Critical Current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
    • 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
    • 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 present invention further relates to a computer program comprising machine code that is directly executable by a software programmable controller, wherein the execution of the machine code by the software programmable controller causes the controller to be configured accordingly.
  • the cooling section has a number of spray bars, by means of which the liquid coolant is applied either only from above or from both above and below on the flat rolling stock.
  • Power cooling - that is, the intensive cooling of hot rolling stock - is a novel cooling method for cooling a rolling stock during hot rolling or immediately thereafter. It serves to specifically adjust the microstructure and thus the mechanical properties of the end product.
  • so-called AHSS advanced high strength steels
  • the object of the present invention is to provide opportunities to supply the spray bar via a single supply system with the liquid coolant and still be able to realize both a power cooling and a laminar cooling.
  • an operating method of the type mentioned further characterized in that a delivery rate of the pump and / or a line pressure generated by means of the pump in the supply system is adjusted according to a total flow applied to the flat rolling stock by means of the spray bar in its entirety.
  • Claim 3 relates to an advantageous embodiment of the control device.
  • a control device of the aforementioned type is further developed in that the control device adjusts a delivery rate of a pump upstream of the supply line to the valves and / or a line pressure generated by the pump in the supply line according to a total flow to be applied to the flat rolling stock by means of the spray bar ,
  • control device of the total flow is known as such directly.
  • control device automatically determines the total flow on the basis of the partial flows.
  • the object is further achieved by a computer program having the features of claim 4.
  • the execution of the machine code by the software-programmable control device causes the control device to be designed according to the invention.
  • a cooling section of the aforementioned type is further developed in that a delivery rate of Pump and / or a generated by means of the pump in the supply line line pressure is adjusted by the control device according to a total applied by means of the spray bar in its entirety on the flat rolling stock total flow.
  • the line pressure is set between a minimum value and a maximum value. Furthermore, the open positions of the valves between a respective fully closed position and a respective fully open position are continuously or in several stages adjustable.
  • the embodiment according to the invention makes it easily acceptable for at least one respective open position of the valves to exist in the event that the line pressure has the maximum value, at which the liquid coolant flowing through the respective valve kavitiert. Because due to the appropriate control of the pump prevails in the case that a laminar cooling is to be realized in the supply system, a line pressure that is significantly lower than the maximum value. The corresponding valve can therefore be opened relatively wide because of the relatively low line pressure, so that cavitation is no longer to be feared.
  • valves In the case where the line pressure has the maximum value, the valves have a respective maximum flow at the respective fully open position and a respective cavitating flow at the opening position at which the liquid coolant flowing through the respective valve cavitates.
  • a ratio of the respective maximum flow to the respective Kavitierl preferably sets a maximum of 5: 1.
  • the valves can, as is customary, be designed as throttle valves.
  • a cooling section for a flat rolling stock 1 has an effective area 2 through which the flat rolling stock 1 is guided.
  • a number of spray bars 3i 1, 2, 3, ...) are arranged.
  • the liquid coolant 4 is supplied to the spray bar 3i via a pump 5 and a feed system 6 from a reservoir 7 for the liquid coolant 4.
  • the valves 9i - more precisely: their open positions si - are adjustable by a control device 10.
  • the valves 9i are controlled by the control device 10 in such a manner that the open positions si of the valves 9i are adjusted in accordance with a respective partial flow fi which is to be applied to the flat rolled stock 1 by means of the respective spray bar 3i.
  • a delivery rate M of the pump 5 is set in accordance with a total flow F, which by means of the spray bars 3i in their entirety on the flat Walzgut 1 should be applied.
  • a line pressure p which is generated by means of the pump 5 in the supply system 6, can be set by a control of the pump 5 corresponding to the total flow F.
  • the total flow F can be determined automatically by the control device 10 directly 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 that in the control device 10, the abbreviation " ⁇ P" is specified for microprocessor.
  • the control device 10 is programmed with a computer program 11.
  • the computer program 11 includes machine code 12, which is directly executable by the control device 10.
  • the execution of the machine code 12 by the control device 10 causes in this case the corresponding design and operation of the control device 10th
  • the line pressure p in the supply system 6 can be set between a minimum value pmin and a maximum value pmax.
  • the valves 9i on the part of the control device 10 their open positions si between a respective fully closed position si0 and a respective fully open position si1 can be set.
  • the setting of the open positions si is according to FIG. 2 infinitely possible. Alternatively, a setting could be realized in several stages. With each opening position si of the valves 9i corresponds to a respective partial flow fi. The partial flow fi is according to FIG. 2 additionally dependent on the line pressure p.
  • FIG. 2 at least one respective opening position si of the valves 9i at which the liquid coolant 4 flowing through the respective valve 9i kavitiert, ie, in the flow direction of the respective valve 9i flowing liquid coolant 4 behind the respective valve 9i bubbles form.
  • the coolant 4 flowing through the respective valve 9i has a respective maximum flow fi1 at the respective fully open position si1.
  • the liquid coolant has a lower partial flow fiK, hereinafter referred to as the cavitating flow fiK.
  • the ratio of the respective maximum flow fi1 to the respective Kavitierpound fiK is usually a maximum of 5: 1. It can also be at a smaller value, for example at 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 during operation as laminar cooling.
  • retrofitting of existing power cooling systems is possible without further ado. It only need the control device 10 replaced or be reprogrammed and the pump 5 are accordingly efficient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
EP13155337.2A 2013-02-15 2013-02-15 Tunnel de refroidissement avec Power Cooling et refroidissement à flux laminaire Withdrawn EP2767353A1 (fr)

Priority Applications (7)

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
US14/768,097 US10076778B2 (en) 2013-02-15 2014-02-07 Cooling section comprising power cooling and laminar cooling
PCT/EP2014/052388 WO2014124868A1 (fr) 2013-02-15 2014-02-07 Section de refroidissement avec refroidissement intensif et refroidissement laminaire
BR112015019431-1A BR112015019431B1 (pt) 2013-02-15 2014-02-07 Seção de resfriamento para um material circulante plano e método de operação para resfriar um material circulante plano
CN201480009116.XA CN105163876B (zh) 2013-02-15 2014-02-07 包括强力冷却和层流冷却的冷却部
EP14705081.9A EP2956250B1 (fr) 2013-02-15 2014-02-07 Tunnel de refroidissement avec power cooling et refroidissement à flux laminaire
US16/059,125 US11040385B2 (en) 2013-02-15 2018-08-09 Cooling section comprising power cooling and laminar cooling

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
EP2767353A1 true EP2767353A1 (fr) 2014-08-20

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 After (1)

Application Number Title Priority Date Filing Date
EP14705081.9A Active EP2956250B1 (fr) 2013-02-15 2014-02-07 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)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105414204A (zh) * 2015-12-07 2016-03-23 武汉钢铁(集团)公司 用于热轧带钢的层流冷却控制系统及方法
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
WO2020123217A1 (fr) * 2018-12-12 2020-06-18 Primetals Technologies USA LLC Système de régulation de température
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
RU2786558C1 (ru) * 2019-07-03 2022-12-22 Прайметалз Текнолоджиз Джермани Гмбх Участок охлаждения, имеющий клапаны и напорные баки для предотвращения гидроударов

Families Citing this family (4)

* 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
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
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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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
DE19854675A1 (de) * 1998-11-26 2000-06-08 Thyssenkrupp Stahl Ag Vorrichtung zum Kühlen eines Metallbandes, insbesondere eies Warmbreitbandes

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Publication number Priority date Publication date Assignee Title
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
DE19854675A1 (de) * 1998-11-26 2000-06-08 Thyssenkrupp Stahl Ag Vorrichtung zum Kühlen eines Metallbandes, insbesondere eies Warmbreitbandes

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105414204A (zh) * 2015-12-07 2016-03-23 武汉钢铁(集团)公司 用于热轧带钢的层流冷却控制系统及方法
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
WO2020020868A1 (fr) 2018-07-25 2020-01-30 Primetals Technologies Germany Gmbh Zone de refroidissement à ajustement des flux de fluide de refroidissement par des pompes
CN112469516A (zh) * 2018-07-25 2021-03-09 普锐特冶金技术德国有限公司 通过泵调整冷却剂流的冷却部段
US11167332B2 (en) 2018-07-25 2021-11-09 Primetals Technologies Germany Gmbh Cooling section with coolant flows which can be adjusted using pumps
EP3826780B1 (fr) 2018-07-25 2023-01-25 Primetals Technologies Germany GmbH Section de refroidissement à réglage de flux de liquide de refroidissement à l'aide de pompes
CN112469516B (zh) * 2018-07-25 2023-04-11 普锐特冶金技术德国有限公司 用于冷却部段的运行方法和冷却部段
WO2020123217A1 (fr) * 2018-12-12 2020-06-18 Primetals Technologies USA LLC Système de régulation de température
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
WO2021001162A1 (fr) 2019-07-03 2021-01-07 Primetals Technologies Germany Gmbh Section de refroidissement comportant des soupapes et des contenants sous pression pour empêcher des coups de bélier
CN114040821A (zh) * 2019-07-03 2022-02-11 首要金属科技德国有限责任公司 具有阀和用于避免压力冲击的压力容器的冷却段
RU2786558C1 (ru) * 2019-07-03 2022-12-22 Прайметалз Текнолоджиз Джермани Гмбх Участок охлаждения, имеющий клапаны и напорные баки для предотвращения гидроударов

Also Published As

Publication number Publication date
BR112015019431A2 (pt) 2017-07-18
BR112015019431B1 (pt) 2022-07-19
CN105163876A (zh) 2015-12-16
US10076778B2 (en) 2018-09-18
CN105163876B (zh) 2017-12-15
US20150375284A1 (en) 2015-12-31
US20180345343A1 (en) 2018-12-06
EP2956250A1 (fr) 2015-12-23
WO2014124868A1 (fr) 2014-08-21
US11040385B2 (en) 2021-06-22
EP2956250B1 (fr) 2022-12-07

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