EP2783766A1 - Section de refroidissement avec rampe de pulvérisation inférieure - Google Patents

Section de refroidissement avec rampe de pulvérisation inférieure Download PDF

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Publication number
EP2783766A1
EP2783766A1 EP13160792.1A EP13160792A EP2783766A1 EP 2783766 A1 EP2783766 A1 EP 2783766A1 EP 13160792 A EP13160792 A EP 13160792A EP 2783766 A1 EP2783766 A1 EP 2783766A1
Authority
EP
European Patent Office
Prior art keywords
cooling section
section according
spray nozzles
spray
transport rollers
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Withdrawn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
EP13160792.1A
Other languages
German (de)
English (en)
Inventor
Alois Seilinger
Jian Dr. Chen
Sieglinde Ehgartner
Reinhard Dr. Karl
Erich Opitz
Florian Pöschl
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
Application filed by Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Priority to EP13160792.1A priority Critical patent/EP2783766A1/fr
Priority to RU2015145470A priority patent/RU2659541C2/ru
Priority to PCT/EP2014/053186 priority patent/WO2014154399A1/fr
Priority to US14/779,575 priority patent/US9878358B2/en
Priority to EP14707680.6A priority patent/EP2978545B1/fr
Priority to JP2016504523A priority patent/JP6177990B2/ja
Priority to CN201480018354.7A priority patent/CN105163877B/zh
Publication of EP2783766A1 publication Critical patent/EP2783766A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/12—Arrangement or installation of roller tables in relation to a roll stand

Definitions

  • the cooling section has at least one spray bar, which is arranged below the transport rollers.
  • the spray bar tubes are usually welded in a series extending parallel to the roller axes and projecting upwards in the direction of the rolling stock. The tubes are seen both in the transport direction seen from the transport rollers and seen in the direction of the roller axes from each other. The removal of the applied from below to the rolling stock coolant is therefore easily possible.
  • the intensive cooling is a novel cooling method for cooling a rolling stock during hot rolling or immediately thereafter. she serves to adjust the microstructure and thus the mechanical properties of the final product.
  • so-called AHSS advanced high strength steels
  • the object of the present invention is to design a cooling section of the type mentioned above in such a way that the coolant injected from below onto the flat rolling stock can be discharged in a simple manner.
  • the lengths of the guide sections in the region of the transport rollers are significantly smaller than the spacing of the directly adjacent transport rollers from one another.
  • the guide sections taper as seen over their entire vertical extent.
  • the lengths of the guide portions near the base block are constant.
  • the guide sections each have a lower part adjacent to the base block and a upper part containing the respective upper end element, that the lengths of the guide sections in the region of the respective lower part are constant, that the lengths of the guide sections are in the To reduce the region of the respective upper part to the respective upper end element and that the respective lower part and the respective upper part are screwed together.
  • the guide sections have a respective width in the direction of the roller axes, that the widths in the area of the respective lower part are constant and that the widths are in the region of the respective upper part to reduce towards the respective upper end element.
  • This embodiment - namely the reduction of the widths - is also feasible from the point of view, if the guide sections are not divided into lower parts and upper parts.
  • the widths decrease at least in the vicinity of the respective upper end element in the direction of the respective upper end element.
  • the spray nozzles are screwed into the respective upper end element.
  • the arranged on the upper end elements spray nozzles generally comprise a plurality of rows of spray nozzles, in particular at least two outer rows of spray nozzles, which are seen in the transport direction of the flat rolled material arranged one behind the other.
  • the spray nozzles of the outer rows have a respective main spray direction having a vertically upwardly directed vertical component.
  • the main injection directions additionally have a respective horizontal component. The horizontal components of the main injection directions of the outer rows of spray nozzles are directed away from each other in this case.
  • the spray nozzles arranged on the upper end elements comprise (in addition) at least one middle row of spray nozzles arranged between the outer rows of spray nozzles when viewed in the transport direction of the flat rolled stock.
  • the spray nozzles of the middle row preferably have a main spray direction which is directed purely vertically from bottom to top.
  • struts are arranged at least in the base block.
  • the base block pressure loads - even changing pressure loads by the switching on and off of the lower spray bar - better cope.
  • struts can also be arranged in or on the guide sections.
  • liquid coolant is fed into the base block parallel to the direction of the roller axes. This simplifies the structural design of the lower spray bar.
  • At least one upper spray bar is arranged above the pass line, into which a liquid coolant is likewise fed and on the underside of which further spray nozzles are arranged, by means of which the coolant fed into the upper spray bar from above onto the flat Rolled material is sprayed.
  • a cooling section for a flat rolling stock 1 has a frame construction 2.
  • a plurality of transport rollers 3 is arranged in the frame structure 2.
  • the transport rollers 3 are arranged one behind the other in a transport direction x for the flat rolling stock 1.
  • Immediately adjacent transport rollers seen in the transport direction x 3 have a respective distance a from each other.
  • the transport rollers 3 are rotatably supported in the frame structure 2 about a respective roller axis 4.
  • the roller axes 4 are orthogonal to the transport direction x. They continue to run horizontally.
  • the transport rollers 3 thereby form a (horizontal) passline 5 for the flat rolling stock 1.
  • a lower spray bar 6 is arranged below the passline 5, a lower spray bar 6 is arranged. Most are several lower spray bar 6 available. The following explanations, in which reference is made to the lower spray bar 6 and its components are therefore to be understood as purely exemplary.
  • the lower spray bar 6 has a base block 7.
  • the base block 7 is arranged below the transport rollers 3.
  • a liquid coolant 8 is fed.
  • the feeding of the liquid coolant 8 into the base block 7 from any direction is possible.
  • the liquid coolant 8 becomes, as in FIG. 2 is indicated by a correspondingly designated arrow, fed parallel to the direction of the roller axes 4 in the base block 7.
  • struts are preferably arranged (not shown in the FIG). If necessary, 9 struts can also be arranged in or on the guide sections. These struts are not shown in the FIG.
  • the guide section 9 has according to FIG. 3 an upper end element 10.
  • spray nozzles 11 are arranged.
  • the liquid coolant 8 which was previously fed into the base block 7, sprayed from below onto the flat rolling stock 1.
  • the spray nozzles 11 may in particular be screwed into the upper end element 10.
  • the guide section 9 has a length l.
  • the length l varies in the vertical direction.
  • the length l decreases at least in the vicinity of the upper end element 10 in the direction of the upper end element 10.
  • a stepless reduction of the length l takes place.
  • a first inclination angle ⁇ which forms the course of the length l with the vertical direction, is usually between 3 ° and 10 °, for example at 4 ° to 7 °. Due to the reduction of the length l can be achieved in particular that the length l of the guide portion 9 in the region of the transport rollers 3 is significantly smaller than the distance a of the two immediately adjacent transport rollers 3 from each other.
  • the length l in this area is preferably at most 80% of the distance a. It can also be even smaller, for example, only up to 50% of the distance a.
  • the length l is reduced over the entire height of the guide sections 9.
  • the length l in the vicinity of the base block 7 is constant. You can already there, as in FIG. 3 shown, smaller than the distance a of the two immediately adjacent transport rollers 3 from each other. However, this is not mandatory.
  • the guide section 9 has a base 12 adjacent to the base block 7.
  • the guide section 9 furthermore has an upper part 13.
  • the upper part 13 contains the upper end element 10.
  • the lower part 12 and the upper part 13 are bolted together via screw 14.
  • the length l is preferably constant.
  • the length l decreases towards the upper end element 10.
  • the guide section 9 has according to FIG. 4 seen in the direction of the roller axes 4 a width b.
  • the width b is preferably reduced analogously to the length l also in the vicinity of the upper end element 10 in the direction of the upper end element 10.
  • the length l is preferably constant in the region of the lower part 12.
  • the width b decreases in the direction of the upper end element 10.
  • a second inclination angle ⁇ which forms the course of the width b with the vertical direction, is generally between 5 ° and 15 °, for example at 7 ° to 12 °.
  • the injection nozzles 11 arranged on the upper closing element 10 each comprise at least two outer rows 11a of spray nozzles 11.
  • the outer rows 11a are arranged one behind the other in the transporting direction x.
  • at least one middle row 11 b of spray nozzles 11 may be present. If the middle row 11b of spray nozzles 11 is present, it is arranged in the transporting direction x between the outer spray nozzles 11a.
  • the spray nozzles 11 of the outer rows 11a have according to FIG. 5 a respective main spray direction 15.
  • the main spray directions 15 have a (common) vertical component, which is - of course - directed from bottom to top.
  • the main spray directions 15 of the outer rows 11a of spray nozzles 11 are in accordance with FIG. 5 Furthermore, a respective horizontal component.
  • the horizontal components of the main spray directions 15 of the outer rows 11a of spray nozzles 11 are obviously directed away from one another.
  • the spray nozzles 11 of the middle row 11b also have a respective main spray direction.
  • the main spray direction of the spray nozzles 11 of the middle row 11b is in FIG FIG. 5 not provided with a reference numeral.
  • the main injection direction of the middle Row 11b of spray nozzles 11 is usually purely vertical from bottom to top.
  • an upper spray bar 16 is arranged in addition to the lower spray bar 6 above the passline 5 (at least) in addition to the lower spray bar 6 above the passline 5 (at least) an upper spray bar 16 is arranged.
  • a liquid coolant 8 is also fed.
  • the upper spray bar 16 has on its underside further spray nozzles - to distinguish them from the spray nozzles 11 of the lower spray bar 6 with the reference numeral 17.
  • the spray nozzles 17 of the upper spray bar 16 the injected into the upper spray bar 16 coolant 8 is sprayed from above onto the flat rolling stock 1.
  • the present invention has many advantages.
  • the coolant consumption of the lower spray bar 6 can be significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP13160792.1A 2013-03-25 2013-03-25 Section de refroidissement avec rampe de pulvérisation inférieure Withdrawn EP2783766A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP13160792.1A EP2783766A1 (fr) 2013-03-25 2013-03-25 Section de refroidissement avec rampe de pulvérisation inférieure
RU2015145470A RU2659541C2 (ru) 2013-03-25 2014-02-19 Участок охлаждения с нижней распылительной балкой
PCT/EP2014/053186 WO2014154399A1 (fr) 2013-03-25 2014-02-19 Couloir de refroidissement pourvu d'une rampe de pulvérisation inférieure
US14/779,575 US9878358B2 (en) 2013-03-25 2014-02-19 Cooling section having lower spray bar
EP14707680.6A EP2978545B1 (fr) 2013-03-25 2014-02-19 Section de refroidissement avec rampe de pulvérisation inférieure
JP2016504523A JP6177990B2 (ja) 2013-03-25 2014-02-19 下側噴射バーを有する冷却セクション
CN201480018354.7A CN105163877B (zh) 2013-03-25 2014-02-19 具有底部喷射梁的冷却线路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13160792.1A EP2783766A1 (fr) 2013-03-25 2013-03-25 Section de refroidissement avec rampe de pulvérisation inférieure

Publications (1)

Publication Number Publication Date
EP2783766A1 true EP2783766A1 (fr) 2014-10-01

Family

ID=47998234

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13160792.1A Withdrawn EP2783766A1 (fr) 2013-03-25 2013-03-25 Section de refroidissement avec rampe de pulvérisation inférieure
EP14707680.6A Active EP2978545B1 (fr) 2013-03-25 2014-02-19 Section de refroidissement avec rampe de pulvérisation inférieure

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14707680.6A Active EP2978545B1 (fr) 2013-03-25 2014-02-19 Section de refroidissement avec rampe de pulvérisation inférieure

Country Status (6)

Country Link
US (1) US9878358B2 (fr)
EP (2) EP2783766A1 (fr)
JP (1) JP6177990B2 (fr)
CN (1) CN105163877B (fr)
RU (1) RU2659541C2 (fr)
WO (1) WO2014154399A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3251764B1 (fr) * 2016-05-31 2019-07-03 Primetals Technologies Austria GmbH Procédé et dispositif de stabilisation d'un mouvement d'une bande métallique laminée sur un train de rouleaux
WO2018179449A1 (fr) 2017-03-31 2018-10-04 新日鐵住金株式会社 Dispositif et procédé de refroidissement de tôle d'acier laminée à chaud
CN108746207B (zh) * 2018-06-15 2023-06-16 甘肃酒钢集团宏兴钢铁股份有限公司 一种悬浮式带材运送装置
DE102019106730A1 (de) * 2019-03-18 2020-01-02 Primetals Technologies Austria GmbH Kühlung von flachem Walzgut ohne Nachlaufen des Headers
DE102020205251B3 (de) * 2020-04-24 2021-10-07 Kocks Technik Gmbh & Co Kg Vorrichtung zum Kühlen oder Führen eines Langproduktes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0459115A (ja) * 1990-06-28 1992-02-26 Kawasaki Steel Corp 金属ストリップの冷却方法
WO1999030849A1 (fr) * 1997-12-15 1999-06-24 Centre De Recherches Metallurgiques - Centrum Voor De Research In De Metallurgie Dispositif de refroidissement a tres haute puissance specifique d'une bande metallique en mouvement
DE10215229A1 (de) * 2002-04-06 2003-10-16 Sms Demag Ag Vorrichtung zum Kühlen von Walzgut innerhalb der Kühlstrecke einer Walzanlage
EP1527829A1 (fr) * 2002-08-08 2005-05-04 JFE Steel Corporation Dispositif de refroidissement, procede de fabrication et chaine de fabrication de bande d'acier laminee a chaud

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752104Y2 (fr) * 1978-04-10 1982-11-12
JPS57156830A (en) 1981-03-24 1982-09-28 Kawasaki Steel Corp Cooling method for rolling material
JPS58163519A (ja) * 1982-03-23 1983-09-28 Kobe Steel Ltd 鋼板冷却装置
US4497180A (en) * 1984-03-29 1985-02-05 National Steel Corporation Method and apparatus useful in cooling hot strip
BE900784A (fr) * 1984-10-09 1985-04-09 Centre Rech Metallurgique Dispositif pour refroidir un produit metallique en mouvement et installation en comportant l'apllication.
NL9001462A (nl) * 1990-06-27 1992-01-16 Hoogovens Groep Bv Koelsysteem voor het koelen van een bewegende metaalband.
DE4024605A1 (de) * 1990-08-02 1992-02-06 Wsp Ingenieurgesellschaft Fuer Vorrichtung zur abkuehlung von strangpressprofilen
JP2898873B2 (ja) 1994-01-31 1999-06-02 川崎製鉄株式会社 高温金属板の下面冷却装置
JP3066791B2 (ja) * 1995-09-22 2000-07-17 日本鋼管株式会社 鋼板の冷却装置
DE20006508U1 (de) * 2000-04-08 2000-08-31 Achenbach Buschhuetten Gmbh Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinband- und Folienwalzwerke
DE102004015741A1 (de) * 2004-03-29 2005-10-20 Sms Demag Ag Vorrichtung zum Kühlen von Blechen und Bändern
JP4774887B2 (ja) * 2005-09-27 2011-09-14 Ｊｆｅスチール株式会社 鋼板の冷却設備および製造方法
CN201200991Y (zh) * 2008-06-19 2009-03-04 武汉钢铁(集团)公司 热机械控轧控冷钢板平整控冷装置
CN101767113B (zh) * 2009-12-22 2012-09-05 马鞍山钢铁股份有限公司 热轧h型钢轧后控制冷却装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0459115A (ja) * 1990-06-28 1992-02-26 Kawasaki Steel Corp 金属ストリップの冷却方法
WO1999030849A1 (fr) * 1997-12-15 1999-06-24 Centre De Recherches Metallurgiques - Centrum Voor De Research In De Metallurgie Dispositif de refroidissement a tres haute puissance specifique d'une bande metallique en mouvement
DE10215229A1 (de) * 2002-04-06 2003-10-16 Sms Demag Ag Vorrichtung zum Kühlen von Walzgut innerhalb der Kühlstrecke einer Walzanlage
EP1527829A1 (fr) * 2002-08-08 2005-05-04 JFE Steel Corporation Dispositif de refroidissement, procede de fabrication et chaine de fabrication de bande d'acier laminee a chaud

Also Published As

Publication number Publication date
US20160052034A1 (en) 2016-02-25
EP2978545B1 (fr) 2017-03-29
RU2015145470A (ru) 2017-05-03
JP2016519619A (ja) 2016-07-07
EP2978545A1 (fr) 2016-02-03
RU2659541C2 (ru) 2018-07-02
WO2014154399A1 (fr) 2014-10-02
JP6177990B2 (ja) 2017-08-09
CN105163877B (zh) 2017-09-22
US9878358B2 (en) 2018-01-30
CN105163877A (zh) 2015-12-16

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