EP2792428A1 - Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur - Google Patents

Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur Download PDF

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Publication number
EP2792428A1
EP2792428A1 EP13163666.4A EP13163666A EP2792428A1 EP 2792428 A1 EP2792428 A1 EP 2792428A1 EP 13163666 A EP13163666 A EP 13163666A EP 2792428 A1 EP2792428 A1 EP 2792428A1
Authority
EP
European Patent Office
Prior art keywords
transport direction
cooling device
spray bar
spray
intermediate frame
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Withdrawn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
EP13163666.4A
Other languages
German (de)
English (en)
Inventor
Sieglinde Ehgartner
Jian Chen
Reinhard Karl
Erich Opitz
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=48092807&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2792428(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 EP13163666.4A priority Critical patent/EP2792428A1/fr
Priority to PCT/EP2014/056771 priority patent/WO2014170139A1/fr
Priority to RU2015141167A priority patent/RU2652606C2/ru
Priority to EP14718020.2A priority patent/EP2986400B1/fr
Priority to US14/784,812 priority patent/US9868142B2/en
Priority to JP2016508077A priority patent/JP6110015B2/ja
Priority to KR1020157032606A priority patent/KR102280234B1/ko
Priority to CN201480021293.XA priority patent/CN105188975B/zh
Publication of EP2792428A1 publication Critical patent/EP2792428A1/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
    • B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
    • 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
    • B21B45/0218—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

  • Such a cooling device is known, for example, under the name Mulpic.
  • this cooling device is in the Middle region on the one hand and in the two outer regions on the other hand via its own, individually controllable valve means a liquid cooling medium fed.
  • the mean flow rate defines a symmetrical trapezoid whose parallel sides run transversely to the transport direction. The trapezoid and the two outer triangles complement each other to form a rectangle.
  • the control takes place in such a way that the quantity of coolant applied to the flat rolling stock via the two outer regions and the quantity of coolant applied to the flat rolling stock over the central region are coordinated with one another such that a temperature of edge regions of the flat rolled product is at a temperature of a central region of the flat Walzguts is adjusted.
  • the flat rolled stock may have a temperature wedge, as seen across the width of the flat stock, i. that the flat rolling stock is warmer on one side than on the other side. In such a case it would be advantageous to be able to cool one side of the flat rolling stock more than the other side. For this purpose, the procedure described above is unsuitable.
  • the object of the present invention is to provide opportunities to eliminate such a temperature wedge.
  • the valve devices are switched to binary, so are at a certain time either fully open or fully closed.
  • the amount of liquid cooling medium fed into the regions may be adjusted by adjusting a working pressure generated by a respective pump and / or by adjusting a delivery rate effected by the respective pump.
  • the valve devices can be designed as servo valves or as proportional valves.
  • the liquid coolant in front of the valve means may be at a constant pressure, for example because upstream pumps produce a constant pressure or because a supply is from a high tank.
  • the spray bar is usually above the passline arranged.
  • the spray bar may alternatively be arranged below the passline. Often, however, there is more than just a spray bar.
  • the number of spray bars is therefore at least two. In this case, preferably at least one spray bar is arranged above and below the passline.
  • At least one of the spray bars may be arranged on a holding frame fixed relative to the pass line.
  • this spraying bar may be associated with an adjusting device by means of which a distance of this spray bar from the passline is adjustable.
  • This embodiment can be used in particular to maximize the distance from the passline when maintenance work on the spray bar and / or for example on a passport defining roller table should be made.
  • An adjustment range, by which the distance is variable, can be determined as needed. It is preferably at least 20 cm, for example at least 30 cm, in particular at least 50 cm. Even larger values are possible.
  • the two measures ie the adjustment of the distance and pivoting, can also be combined with one another in the same spray bar.
  • the corresponding spray bar is arranged on an intermediate frame, which in turn is arranged on a retaining frame fixed relative to the pass line.
  • the spraying bar and the intermediate frame are each assigned an adjusting device. It is possible that a distance of the spray bar from the intermediate frame is adjustable by means of the adjusting device associated with the spray bar.
  • the intermediate frame by means of the adjustment device associated with the intermediate frame can be pivoted about the pivoting angle about the pivot axis.
  • the reverse approach can be taken.
  • the spray bar can be pivoted about the pivoting angle about the pivoting axis.
  • the distance of the intermediate frame from the holding frame is adjustable in this case.
  • the pivot axis is generally arranged transversely to the transport direction at the edge of this spray bar and extends parallel to the transport direction.
  • the swivel angle can be determined as needed. Preferably, it is at least 20 °.
  • the pivoting angle can be at least 30 °, at least 45 ° or at least 60 °. Even larger tilt angles - even up to 90 ° and beyond - are possible.
  • a rolling mill for rolling flat rolling stock having the features of claim 11.
  • a rolling train of the type mentioned above is configured in that the cooling device is designed according to the invention.
  • FIG. 1 is a generally provided with the reference numeral 1 cooling device for a flat rolling stock 2 of the rolling stock 2 at the level of a passline 3 in a transport direction x through.
  • the passline 3 can be defined for example by the arrangement of an upstream device and / or a downstream device.
  • the upstream device can be designed, for example, as a casting device, as an oven or as a rolling stand.
  • the downstream device can be designed, for example, as a roll stand, as a roller table or as a cooling section. Other embodiments are possible.
  • the cooling device 1 has a number of spray bars 5, 6. It is possible that only a single spray bar 5, 6 is present. In general, however, a plurality of spray bars 5, 6 are present, so at least two spray bars 5, 6. In this case, as shown in FIG FIG. 1 Preferably, at least one of the spray bars 5, 6 is arranged above and below the pass line 3.
  • the above the passline 3 arranged spray bar 5 is hereinafter referred to briefly as the upper spray bar 5, the below the passline 3 arranged spray bar 6 as the lower spray bar. 6
  • the upper spray bar 5 extends - see FIG. 2 - transverse to the transport direction x. It has, viewed transversely to the transport direction x, two outer regions 7, 8.
  • the upper spray bar 5 also has a central region 9.
  • the central region 9 is seen transversely to the transport direction x between the two outer regions 7, 8 are arranged.
  • a respective separate valve means 10, 11, 12, a liquid cooling medium 13 can be fed.
  • the valve devices 10, 11, 12 are individually controllable by a control device 14. The control of each of the valve devices 10, 11, 12 is thus independent of the control of the respective other two valve devices 11, 12 and 10, 12 and 10, 11th
  • the flat rolling stock 2 is acted upon by means of outlet openings 15, which are arranged in the central region 9, with a flow rate V1 of the liquid cooling medium 13.
  • the flat rolling stock 2 by means of outlet openings 16, 17, which are arranged in the two outer regions 7, 8, with a respective flow rate V2, V3 of the liquid cooling medium 13 acted upon.
  • the quantity curves V1, V2, V3 are referred to below as the linguistic distinction from each other as the average quantity profile V1, as the left outer quantity profile V2 and as the right outer quantity profile V3.
  • the term "flow rate" in the context of the present invention does not relate to a time course, but to a local course. This is explained by the following explanations FIG. 3 and the 4 to 7 be more apparent.
  • the mean quantity profile V1 is according to FIG. 3 transverse to the transport direction x seen in the middle maximum. Towards the edge, the mean volume profile V1 decreases. The waste is linear at both edges.
  • the mean quantity curve V1 thus defines a middle triangle. One side of the middle triangle runs transversely to the transport direction x. The other two sides of the middle triangle are the same length. The middle triangle is thus an isosceles triangle.
  • the left outer quantity profile V2 is according to FIG. 3 transverse to the transport direction x seen at the left edge maximum. Towards the middle, the left outer flow V2 falls off. The waste is linear towards the middle.
  • the left outer quantity profile V2 thus defines a left outer triangle. One side of the left outer triangle runs parallel to the transport direction x. Another side of the left outer triangle runs transversely to the transport direction x. The left outer triangle is therefore a right-angled triangle.
  • the right outer flow rate V3 is according to FIG. 3 transverse to the transport direction x seen at the right edge maximum. Towards the middle, the right outer flow rate V3 drops off. The waste is linear towards the middle.
  • the right outer quantity curve V3 thus defines a right outer triangle. One side of the right outer triangle runs parallel to the transport direction x. Another side of the right outer triangle runs transversely to the transport direction x. The right outer triangle is also a right triangle.
  • the outlet openings 15, 16, 17, for example, as shown in FIG. 2 be arranged in several rows, which follow each other as seen in the transport direction x.
  • the outlet openings 15, 16, 17 may be designed accordingly, so that the amount of cooling medium 13 emerging from the respective outlet openings 15, 16, 17 varies.
  • volume curves V1, V2, V3 represent the maximum possible quantity curves. So these flat runs V1, V2, V3, the flat rolling stock 2 is applied when the areas associated with the areas 7, 8, 9 valve devices 10, 11, 12 are fully open and Delivery amounts M1, M2, M3, which are fed into the areas 7, 8, 9, are maximum.
  • the delivery rates M1, M2, M3 can be constant. Preferably, however, they are individually continuously adjustable. As a result, depending on the set flow rates M1, M2, M3, a desired resulting local flow rate V can be set within the control limits.
  • the left outer region 7 associated valve device 11 is closed.
  • the associated flow rate M2 is therefore 0.
  • the right outer area 8 is supplied via the associated valve means 12, the maximum possible flow rate M3 (or a slightly smaller amount).
  • the middle region 9 is supplied via the associated valve device 10, a mean flow rate M1.
  • the corresponding quantity curves V1, V3 are in FIG. 4 dashed lines.
  • the resulting total, resulting flow rate V is indicated by a solid line. It can be seen with the resulting flow rate V according to FIG. 4 a temperature wedge in the flat rolling stock 2 can be corrected.
  • FIG. 5 is the left outer region 7 via the associated valve device 11, an average flow rate M2 supplied.
  • the right outer region 8 is supplied via the associated valve device 12, a relatively high, but not the maximum flow rate M3.
  • the central region 9 is the maximum via the associated valve device 10 possible delivery rate M1 (or a slightly smaller amount) supplied.
  • the corresponding quantity curves V1, V2, V3 are in FIG. 5 dashed lines.
  • the resulting total, resulting flow rate V is indicated by a solid line. It can be seen with the resulting flow rate V according to FIG. 5 Increased cooling of the central region of the flat rolled material 2 take place, but the two edges are cooled to different degrees.
  • the left outer region 7 is supplied via the associated valve device 11, a relatively high flow rate M2.
  • the right outer region 8 is supplied via the associated valve device 12, a slightly lower flow rate M3.
  • the central region 9 associated with the valve device 10 is closed.
  • the corresponding delivery rate M1 is therefore 0.
  • the corresponding quantity progressions V2, V3 are in FIG. 5 drawn in solid lines.
  • the total resulting, resulting flow rate V corresponds in the left part of the flow rate V2, in the right part of the flow rate V3. It can be seen with the resulting flow rate V according to FIG. 6 a different degrees of cooling of the edges of the flat rolled 2 take place.
  • FIG. 7 are supplied to the right outer region 8 and the central region 9 delivery amounts M1, M3, which complement each other in the right part of the flat rolling stock 2 to a constant flow rate V.
  • the delivery amount M2 supplied to the left outer region 7 could be smaller than the delivery amount M3 supplied to the right outer region 8. In this case, the left edge of the flat rolled stock 2 would be cooled weaker from the middle of the flat rolled stock 2, ie the resulting quantity course would fall off.
  • the above in connection with the 4 to 7 explained delivery quantities M1, M2, M3 are purely exemplary. There are - as needed - other combinations possible.
  • the valve devices 10, 11, 12 are formed as servo valves. Preferably, however, the valve devices 10, 11, 12 are switched to binary. So they are - depending on the drive state - either fully open or fully closed. Intermediate positions are not taken.
  • the delivery rates M1, M2, M3 - if they are adjustable - by means of pumps 18, 19, 20 are set, which are respectively upstream of the respective valve means 10, 11, 12. It can be adjusted directly by the respective pump 18, 19, 20 effected flow rate M1, M2, M3. Alternatively or additionally, a working pressure p1, p2, p3 can be adjusted, which is effected by the respective pump 18, 19, 20 in a respective delivery line 21, 22, 23.
  • the upper spray bar 5 is arranged on a holding frame 24.
  • the support frame 24 is fixed with respect to the passline 3.
  • the upper spray bar 5 is associated with an adjusting device 25.
  • the adjusting device 25 may be formed (for example) as a number of hydraulic cylinder units. For example, two hydraulic cylinder units may be present, which are attached to the left and right of the support frame 24 and the upper spray bar 5.
  • a setting range ⁇ a ie the difference between the maximum possible distance a and the minimum possible distance a, can be selected as required.
  • the setting range ⁇ a is preferably at least 20 cm. It can also have larger values, for example 30 cm (or more) or 50 cm. Even larger values are possible.
  • the upper spray bar 5 is also arranged on the stationary with respect to the passline 3 support frame 24. Also in the embodiment according to FIG. 9 is the upper spray bar 5 associated with an adjustment 25. Again, the adjustment 25 (for example) may be formed as a number of hydraulic cylinder units. By means of the adjusting device 25, the upper spray bar 5 is pivotable about a pivot axis 26.
  • the pivot axis 26 is as shown in FIG FIG. 9 Seen transversely to the transport direction x seen at the edge of this spray bar 5. It preferably runs parallel to the transport direction x.
  • a pivot angle ⁇ ie the angle by which the upper spray bar 5 is pivotable, can be selected as needed.
  • the pivot angle ⁇ is at least 20 °.
  • the pivoting angle ⁇ at least 30 °, at least 45 ° or at least 60 °. Even larger tilt angles ⁇ - even up to 90 ° and beyond - are possible.
  • the two adjustment options that is, the setting of the distance a and the pivoting about the pivot axis 26 may also be combined with each other.
  • the cooling device 1 according to the invention is according to FIG. 10 preferably used in a rolling mill, in which the flat rolled material 2 is rolled.
  • the rolling mill has according to FIG. 10 at least one roughing stand 27 on.
  • the rolling train has a number of finishing stands 28.
  • the finishing stands 28 are arranged downstream of the roughing stand 27 in the transport direction x.
  • the number of finishing stands 28 is usually between four and eight, usually at five, six or seven.
  • the cooling device 1, as in FIG. 10 indicated by dashed lines, the roughing stand 27 is arranged directly upstream.
  • the cooling device 1 is arranged downstream of the roughing stand 27. It is therefore arranged between the roughing stand 27 and the finishing stand 28, which is immediately downstream of the roughing stand 27.
  • two cooling devices 1 may be present, with each one of the two cooling devices 1 the precast 27 is directly upstream and immediately downstream.
  • the cooling device 1 can be used in the context of a so-called laminar cooling. Preferably, however, it is used in the context of a so-called intensive cooling.
  • the working pressures p1, p2, p3 are generally at least 0.5 bar. Usually they are even above 1.0 bar. For example, they can be between 1.5 bar and 3.0 bar.
  • the cooling device 1 has many advantages.
  • flexible cooling of the flat rolling stock 2 over its entire width can be realized in a simple manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
EP13163666.4A 2013-04-15 2013-04-15 Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur Withdrawn EP2792428A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP13163666.4A EP2792428A1 (fr) 2013-04-15 2013-04-15 Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur
PCT/EP2014/056771 WO2014170139A1 (fr) 2013-04-15 2014-04-04 Dispositif de refroidissement à circulation de refroidissement fonction de la largeur
RU2015141167A RU2652606C2 (ru) 2013-04-15 2014-04-04 Охлаждающее устройство с охлаждающим действием, зависящим от ширины
EP14718020.2A EP2986400B1 (fr) 2013-04-15 2014-04-04 Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur
US14/784,812 US9868142B2 (en) 2013-04-15 2014-04-04 Cooling device with breadth-dependent cooling action
JP2016508077A JP6110015B2 (ja) 2013-04-15 2014-04-04 冷却作用が幅に依存する冷却装置
KR1020157032606A KR102280234B1 (ko) 2013-04-15 2014-04-04 폭-종속형 냉각 작용을 갖는 냉각 장치
CN201480021293.XA CN105188975B (zh) 2013-04-15 2014-04-04 具有幅宽相关的冷却动作的冷却装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13163666.4A EP2792428A1 (fr) 2013-04-15 2013-04-15 Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur

Publications (1)

Publication Number Publication Date
EP2792428A1 true EP2792428A1 (fr) 2014-10-22

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ID=48092807

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13163666.4A Withdrawn EP2792428A1 (fr) 2013-04-15 2013-04-15 Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur
EP14718020.2A Active EP2986400B1 (fr) 2013-04-15 2014-04-04 Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14718020.2A Active EP2986400B1 (fr) 2013-04-15 2014-04-04 Dispositif de refroidissement avec effet de refroidissement dépendant de la largeur

Country Status (7)

Country Link
US (1) US9868142B2 (fr)
EP (2) EP2792428A1 (fr)
JP (1) JP6110015B2 (fr)
KR (1) KR102280234B1 (fr)
CN (1) CN105188975B (fr)
RU (1) RU2652606C2 (fr)
WO (1) WO2014170139A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104324957A (zh) * 2014-11-25 2015-02-04 山东钢铁股份有限公司 一种平整液快速放空装置
EP3308868A1 (fr) * 2016-10-17 2018-04-18 Primetals Technologies Austria GmbH Refroidissement d'un rouleau d'une cage de laminoir
EP3385008A1 (fr) * 2017-04-04 2018-10-10 Primetals Technologies Austria GmbH Décalamineur et procédé de décalaminage chimique d'une bande métallique

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DE102017206540A1 (de) 2017-04-18 2018-10-18 Sms Group Gmbh Vorrichtung und Verfahren zum Kühlen von Metallbändern oder -blechen
EP3395463B1 (fr) 2017-04-26 2019-12-25 Primetals Technologies Austria GmbH Refroidissement d'un laminé
EP3434383A1 (fr) * 2017-07-24 2019-01-30 Primetals Technologies Austria GmbH Dispositif de refroidissement de cage permettant le refroidissement d'un feuillard en acier dans une cage de laminoir
DE102018219276A1 (de) 2018-03-12 2019-09-12 Sms Group Gmbh Kühlgruppe einer Laminarkühlvorrichtung
DE102018205684A1 (de) 2018-04-13 2019-10-17 Sms Group Gmbh Kühleinrichtung und Verfahren zu deren Betrieb
DE102018205685A1 (de) 2018-04-13 2019-10-17 Sms Group Gmbh Kühleinrichtung und Verfahren zu deren Betrieb
DE102018211177A1 (de) * 2018-04-13 2019-10-17 Sms Group Gmbh Kühleinrichtung zum Kühlen eines metallischen Gutes sowie Verfahren zu deren Herstellung und Betrieb
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

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JP2016515474A (ja) 2016-05-30
CN105188975A (zh) 2015-12-23
EP2986400B1 (fr) 2017-10-11
RU2652606C2 (ru) 2018-04-27
CN105188975B (zh) 2017-08-25
KR102280234B1 (ko) 2021-07-21
US20160052033A1 (en) 2016-02-25
WO2014170139A1 (fr) 2014-10-23
US9868142B2 (en) 2018-01-16
KR20150143746A (ko) 2015-12-23
JP6110015B2 (ja) 2017-04-05
EP2986400A1 (fr) 2016-02-24

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