EP2789405A1 - Section de refroidissement avec rampe de pulvérisation dotée d'une plaque terminale amovible - Google Patents

Section de refroidissement avec rampe de pulvérisation dotée d'une plaque terminale amovible Download PDF

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Publication number
EP2789405A1
EP2789405A1 EP13162879.4A EP13162879A EP2789405A1 EP 2789405 A1 EP2789405 A1 EP 2789405A1 EP 13162879 A EP13162879 A EP 13162879A EP 2789405 A1 EP2789405 A1 EP 2789405A1
Authority
EP
European Patent Office
Prior art keywords
cooling section
spray
recesses
rolling stock
section according
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Withdrawn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
EP13162879.4A
Other languages
German (de)
English (en)
Inventor
Erich Opitz
Jian Chen
Sieglinde Ehgartner
Reinhard Karl
Florian Pöschl
Alois Seilinger
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 EP13162879.4A priority Critical patent/EP2789405A1/fr
Publication of EP2789405A1 publication Critical patent/EP2789405A1/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Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the object of the present invention is to develop a cooling section of the type mentioned in such a way that the problems of the prior art no longer occur.
  • This configuration ensures that in the event of damage or clogging of the spray nozzles only the plate-shaped closing element must be removed, which is usually relatively easy and fast to accomplish. Then, a new (properly functioning) plate-shaped closure element is installed. Thereafter, the cooling section can be operated again. A repair or general repair of the dismantled end element can be done outside the cooling section.
  • the spray bar is arranged above the passline, that is designed as an upper spray bar.
  • the advantages of the present invention are particularly important in a cooling section to bear, in which the spray bar is arranged below the passline, that is designed as a lower spray bar.
  • the non-destructive detachable connection can be formed as needed.
  • the non-destructive releasable connections may be formed as a clamping connection, for example as a screw connection.
  • the spray nozzles are formed as incorporated into the plate-shaped end element recesses. This ensures that the spray nozzles - in contrast to the prior art - no longer protrude beyond the closing element. A risk of damage is thus reduced to almost zero.
  • the recesses have a respective longitudinal axis and, seen transversely to the longitudinal axis, a cross section. Preferably is seen in the direction of the flat rolling stock to the cross section constant or at least partially tapers.
  • the spray bar is preferably operated at a working pressure of at least 0.5 bar.
  • FIG. 1 is passing through a cooling section of a flat rolling stock 1 in a transport direction x at the level of a passline 2.
  • the flat rolling stock 1 may be, for example, a heavy plate or a hot strip. It can in particular consist of steel.
  • the cooling section has for cooling the flat rolling stock 1, usually at least above the passline 2 at least one spray bar 3, hereinafter referred to as the upper spray bar 3. In most cases, the cooling section also has below the passline 2 at least one spray bar 4, hereinafter referred to as the lower spray bar 4.
  • the upper spray bar 3 and the lower spray bar 4 are seen arranged in the transport direction x usually at the same position.
  • the spray bars 3, 4 extend according to FIG. 2 transverse to the transport direction x. Often even several upper and lower spray bars 3, 4 are present. In 1 and FIG. 2 However, only one such spray bar 3, 4 is shown in order not to overload this FIG.
  • the lower spray bar 4 has according to FIG. 3 a base part 5 on.
  • the lower part 6 and the upper part 7 are detachably connected in this case via screw 8.
  • the base part 5 may consist of a single part.
  • the base part 5 is closed at this side by means of a plate-shaped end element 9.
  • the closing element 9 is connected to side walls 10 of the base part 5 by means of a non-destructive detachable connection 11.
  • the non-destructive detachable connection 11 may be formed, for example, as a clamping connection 11, that is, the final element 9 is pressed against abutting surfaces 12 of the side walls 10 due to the clamping connection 11.
  • the clamping connection 11 may be formed, for example, as a screw 11.
  • the plate-shaped end element 9 is - as the base part 5 also - usually made of steel. It runs horizontally.
  • the side walls 10 of the base part 5, however, are vertical or at least steep.
  • the term "steep" is intended to mean that the side walls 10 form an angle of maximum 20 ° with the vertical, more preferably 10 ° or less. In general, the angle is, if it is different from 0 °, between 2 ° and 6 °.
  • Spray nozzles 13 introduced.
  • a liquid coolant 14 which is fed into the lower spray bar 4 is sprayed onto the flat rolling stock 1.
  • the spray nozzles 13 may be formed as separate, releasably connected to the plate-shaped end element 9 elements.
  • the spray nozzles 13 are integral components of the plate-shaped end element 9.
  • the spray nozzles 13 do not protrude beyond the plate-shaped closing element 9.
  • the recesses 13 each form at least two outer rows 15, 16 of recesses 13.
  • the outer rows 15, 16 extend transversely to the transport direction x and are arranged one behind the other in the transport direction x.
  • at least one middle row 17 of recesses 13 may be present. If the middle row 17 of recesses 13 is present, it is arranged in the transport direction x between the outer rows 15, 16.
  • the recesses 13 of the outer rows 15, 16 have according to FIG. 4 a respective main spray direction 18, 19, hereinafter referred to as outer main spray directions 18, 19.
  • the outer main spray directions 18, 19 have a (common) vertical component.
  • the outer main spray directions 18, 19 are shown in FIG FIG. 4 Furthermore, a respective horizontal component.
  • the horizontal components of the outer main spray directions 18, 19 run parallel to the transport direction x. As a rule, the horizontal components of the outer main spray directions 18, 19 are directed away from one another.
  • the recesses 13 of the middle row 17 also have a respective main spray direction 20, hereinafter referred to as the mean main spray direction 20.
  • the central main spray direction 20 is, if the middle row is present, directed purely vertically. So it has only the vertical component, but no horizontal component.
  • the recesses 13 have according to FIG. 4 a respective longitudinal axis 21. Seen transversely to the respective longitudinal axis 21, the recesses 13 have a-generally circular-cross-section. Vorugtician, the cross-section tapers in the direction of the flat rolling stock 1 at least in sections.
  • the recesses 13 may have, for example, a starting section 22, a middle section 23 and an end section 24.
  • the respective starting section 22 and the respective central section 23 can conically taper, for example, while the respective end section 24 extends cylindrically.
  • the respective starting section 22 has a more conical course than the respective central section 23.
  • the cross section may be constant in the direction of the flat rolling stock 1.
  • the basis of the FIG. 3 and 4 explained lower spray bar 4 is preferably used in a so-called intensive cooling.
  • the lower spray bar 4 is operated at a working pressure p which is at least 0.5 bar. Most of the working pressure p is even above 1.0 bar, for example at 2.0 bar to 3.5 bar.
  • the present invention has many advantages.
  • a complete replacement of the plate-shaped closure element 9 is possible in a simple and fast way.
  • the spray nozzles 13 are integral parts of the plate-shaped closing element 9, is still a Risk of damage to the spray nozzles 13 almost impossible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP13162879.4A 2013-04-09 2013-04-09 Section de refroidissement avec rampe de pulvérisation dotée d'une plaque terminale amovible Withdrawn EP2789405A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13162879.4A EP2789405A1 (fr) 2013-04-09 2013-04-09 Section de refroidissement avec rampe de pulvérisation dotée d'une plaque terminale amovible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13162879.4A EP2789405A1 (fr) 2013-04-09 2013-04-09 Section de refroidissement avec rampe de pulvérisation dotée d'une plaque terminale amovible

Publications (1)

Publication Number Publication Date
EP2789405A1 true EP2789405A1 (fr) 2014-10-15

Family

ID=48092738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13162879.4A Withdrawn EP2789405A1 (fr) 2013-04-09 2013-04-09 Section de refroidissement avec rampe de pulvérisation dotée d'une plaque terminale amovible

Country Status (1)

Country Link
EP (1) EP2789405A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105107861A (zh) * 2015-08-21 2015-12-02 安徽宇晟浩瀚电子科技有限公司 一种拉丝机用拉丝液喷洒管
CN109491326A (zh) * 2017-09-12 2019-03-19 宝山钢铁股份有限公司 一种厚板边部最佳化剪切控制***
EP3808466A1 (fr) * 2019-10-16 2021-04-21 Primetals Technologies Germany GmbH Dispositif de refroidissement à rayonnement de refroidissement pourvu de section transversale creuse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138503A2 (fr) * 1983-10-11 1985-04-24 KAISER ALUMINUM & CHEMICAL CORPORATION Dispositif de pulvérisation pour laminoirs
WO2003084686A1 (fr) * 2002-04-06 2003-10-16 Sms Demag Aktiengesellschaft Dispositif de refroidissement de produits a laminer dans la voie de refroidissement d'un laminoir

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138503A2 (fr) * 1983-10-11 1985-04-24 KAISER ALUMINUM & CHEMICAL CORPORATION Dispositif de pulvérisation pour laminoirs
WO2003084686A1 (fr) * 2002-04-06 2003-10-16 Sms Demag Aktiengesellschaft Dispositif de refroidissement de produits a laminer dans la voie de refroidissement d'un laminoir

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105107861A (zh) * 2015-08-21 2015-12-02 安徽宇晟浩瀚电子科技有限公司 一种拉丝机用拉丝液喷洒管
CN109491326A (zh) * 2017-09-12 2019-03-19 宝山钢铁股份有限公司 一种厚板边部最佳化剪切控制***
EP3808466A1 (fr) * 2019-10-16 2021-04-21 Primetals Technologies Germany GmbH Dispositif de refroidissement à rayonnement de refroidissement pourvu de section transversale creuse
WO2021074233A1 (fr) * 2019-10-16 2021-04-22 Primetals Technologies Germany Gmbh Dispositif de refroidissement à jets de liquide de refroidissement présentant une section transversale creuse

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