EP3453466A1 - Train de laminage destiné à laminer un produit métallique et procédé de fonctionnement d'un train de laminage - Google Patents

Train de laminage destiné à laminer un produit métallique et procédé de fonctionnement d'un train de laminage Download PDF

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Publication number
EP3453466A1
EP3453466A1 EP18190361.8A EP18190361A EP3453466A1 EP 3453466 A1 EP3453466 A1 EP 3453466A1 EP 18190361 A EP18190361 A EP 18190361A EP 3453466 A1 EP3453466 A1 EP 3453466A1
Authority
EP
European Patent Office
Prior art keywords
cooling
cooling element
pressure
type
rolling train
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.)
Granted
Application number
EP18190361.8A
Other languages
German (de)
English (en)
Other versions
EP3453466B1 (fr
Inventor
Matthias Kipping
Ralf Seidel
Johannes Alken
Magnus TREUDE
Jürgen Seidel
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.)
SMS Group GmbH
Original Assignee
SMS Group 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
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3453466A1 publication Critical patent/EP3453466A1/fr
Application granted granted Critical
Publication of EP3453466B1 publication Critical patent/EP3453466B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
    • 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 invention relates to a rolling train for rolling a metallic material, comprising a cooling device for cooling the rolls of a rolling stand and / or the rolled or rolled Guts. Furthermore, the invention relates to a method for operating a rolling train with such a cooling device.
  • a roll cooling device As a roll cooling device is often used a spray cooling, in which emerges from one or more manifolds, a plurality of water jets under a pressure of about 5 to 25 bar from nozzles. The water jets hit at different angles in the radial direction on the work roll and cool it. For this purpose, for example, on the DE 101 31 369 A1 Referenced.
  • shell cooling are known, as for example in the EP 2 846 940 B1 are described.
  • water or other cooling medium between the work roll and a shell in a relatively narrow gap on the work roll along and so the work roll efficiently and usually cooled at low operating pressure.
  • the invention has the object of providing a generic rolling train so that it is possible in a simple manner to be able to make an adjustment of the cooling to different desired cooling conditions. Furthermore, a corresponding method should be proposed for this purpose. In particular, the disadvantages described above in the changeover from one cooling concept to another should be avoided.
  • the cooling device comprises at least one support frame for at least one cooling element, wherein at least two cooling elements of different types are available or are available, wherein the support frame is equipped with at least one receiving element, which is formed to record alternatively a cooling element of a selected type.
  • the cooling element of one type can be a spray bar for spraying cooling medium onto the roll and / or onto the material to be rolled.
  • the cooling element of a (different) type may be at least one cooling nozzle with a cooling shell for applying cooling medium to the roll.
  • cooling elements of a particular type may be high turbulent cooling, water cooled roll cooling, ultra high pressure cooling or roll cooling with laminar tubes.
  • the receiving element of the support frame has a mechanical interface, which is designed for mechanical connection with an adapter which is arranged on the cooling element, wherein the adapter of all cooling elements are designed to match the mechanical interface of the receiving element.
  • the receiving element of the support frame may further comprise a fluidic interface, which is designed for fluidic connection to the cooling element.
  • At least one supply line for cooling medium is preferably arranged, wherein the supply line has means for adjusting the pressure of the cooling medium and / or the cooling medium volume flow.
  • a second cooling element can be operated via a pressure reducing element of a high-pressure medium supply (in this case, no conversion of the media supply from high pressure to low pressure is required). However, it can also be provided that, after a corresponding conversion of the media supply without a pressure reduction stage, said cooling element is operated by a low-pressure medium supply.
  • the said device and the described method is proposed, which allows a simple change of work roll cooling methods or devices.
  • the mechanical conversion effort can be kept small and a simple decommissioning or an alternative operation at least two different roll cooling devices are performed.
  • This also makes it possible in particular to be able to test different cooling systems in a simple manner, before the one selected which has proved to be best for the specific application.
  • FIG. 1 and FIG. 2 is a cooling device 1 can be seen, with which the work rolls 2 of a roll stand are cooled.
  • the cooling device 1 has a support frame 3, in each of which two cooling elements 4 'and 4 "of a certain type are mounted, namely one for cooling the upper work roll 2 and one for cooling the lower work roll 2.
  • the support frame 3 is in the embodiment in one piece
  • the support framework can alternatively be formed as a multi-part structure (especially since, as a rule, upper and lower cooling elements are provided).
  • a cooling element 4 'of a first type is used, namely in the form of a spray bar.
  • a cooling element 4 "of a second, different from the first type design is used, namely in the form of cooling nozzles with a cooling shell for applying cooling medium to the roller. 2
  • the support frame 3 is equipped with receiving elements 5 (an upper for the upper cooling element and a lower one for the lower cooling element).
  • the receiving elements 5 are designed such that they can alternatively receive a cooling element 4 'or 4 ", ie alternatively either a cooling element of a first type or of a second type
  • the receiving elements 5 could also be used as mechanical supports for a respective cooling element 4 ', 4 "denote.
  • cooling elements 4 ', 4 "adapter 7 are arranged, which serves for the mechanical fixing of the cooling element 4', 4" on the receiving element 5.
  • the concept envisages that the receiving element 5 and the adapter 7 define a mechanical interface 6, which is executed in a standardized manner in such a way that optionally different cooling elements 4 ', 4 "can be mechanically fastened to the day frame 3 via the receiving element 5.
  • FIGS. 1 and 2 is illustrated with the dimensions a, b and c for the upper mechanical interface 6 and the dimensions X, Y and Z for the lower mechanical interface 6 that quasi a precise and easy positioning of a cooling element 4 ', 4 "on the receiving element 5 possible
  • FIGS. 3 to 5 illustrates where a supply line 9 for cooling medium can be seen, with which the cooling elements 4 'and 4 "are supplied with this.
  • means 10 and 10' for adjusting the pressure or the volume flow of the cooling medium Considering that different types of cooling elements also require different pressures or flow rates in order to work efficiently and economically.
  • FIG. 1 So it is a cooling system in the form of spray bars, which carry a plurality of spray nozzles, from which a cooling medium is sprayed against the work roll 2 (spray cooling).
  • FIG. 2 a cooling element in the form of cooling nozzles provided with cooling shells, in which the same cooling medium along the circumference of the work roll 2 is guided against the direction of rotation of the work roll (shell cooling).
  • a possible actuating mechanism for pivoting the shell cooling unit is in for simplicity FIG. 2 not shown.
  • the different work roll cooling devices for the upper and / or lower roll are designed so that they can either be accommodated or fastened alternatively in the support frame (support frame 3).
  • a spray cooling installed in this support frame (support frame 3) or - alternatively - in the same support frame a shell cooling for the cooling of the top and / or bottom roll are attached.
  • the support frame is advantageously designed so that attachment points (receiving elements 5) are provided, which can optionally accommodate both roll cooling devices.
  • the attachment points for the two different roll cooling devices may be provided at the same position of the support frame (as indicated by the dimensions a, b, c and X, Y and Z, respectively) or at different positions.
  • the two roll cooling systems are connected to the media supply in order to adapt to different cooling beam geometries and feed angles and to be able to compensate for a displacement of the support frame together with the respectively installed roll cooling devices.
  • FIGS. 1 or 2 are still the cooling medium supply 14, the fastening screws 15, the lifting point cylinder / support frame 16, the roadway 17th for the support frame 3, the spray nozzles 18, the cooling shell 19, the nozzle 20, the joint 21 for the cooling shell, the articulation lever 22 and the joint 23 for the linkage marked, both the rolling direction W.
  • FIG. 3 and FIG. 4 show a high-pressure medium supply 24, FIG. 5 a low-pressure media supply 25.
  • a roller cooling device with spray cooling in the case of FIG. 3 is a roller cooling device with spray cooling, while in the case of FIGS. 4 and 5 a roll cooling device is present with shell cooling.
  • the high operating pressure is controlled by the means 10 in the form of a control or on / off valve.
  • a low operating pressure which results via the means 10 in the form of the regulating or on / off valve 10
  • a pressure reducing stage 10 ' is set via a pressure reducing stage 10 '.
  • a low operating pressure can also be set directly via the means 10 in the form of a regulating or on / off valve, since a low-pressure medium supply 25 is present here.
  • the first roll cooling device according to FIG. 1 The cooling element 4 'is operated with a supply pressure of between 3 and 30 bar and the second roll cooling with the cooling element 4 "with a supply pressure of less than 6 bar FIG. 1 in a supply pressure range of 7 to 15 bar (high pressure media supply 24) and the second roll cooling device according to FIG. 2 in a supply pressure range of 1 to 5 bar (low pressure media supply 25).
  • the second roll cooling device 4 can optionally be operated directly with a low-pressure medium supply 25 via a pressure reduction 10 'with a high-pressure medium supply 24 or without a pressure reduction stage.
  • the pressure reduction can be carried out in the form of a throttle valve, a pressure regulating or -begrenzungsventils or by other process valves for pressure change from a higher medium pressure supply to the lower operating pressure.
  • the pressure reduction can be performed with an additional pressure reduction stage or, for example, only with an existing control valve (see the FIGS. 3 to 5 ).
  • the support frame can be designed to be displaceable in the horizontal direction together with the respective installed cooling devices, so that the various roll cooling devices with support frame 3 can be moved back and forth from the roller as required.
  • step c can be very easily rebuilt at a later time in the initial state and operated according to step a).
  • the second roll cooling device is a shell cooling
  • the shell shape is adapted to the diameter range of the respective roll stand of a multi-stand rolling train and the base body of the shell cooling is selected to be the same for all stands.
  • a shell cooling is used as the second roll cooling and if this cooling device and its media outlet are sealed off from its surroundings, it can furthermore be provided that neighboring aggregates (backup roll, chocks, possible cylinders, etc.) are cooled by small amounts of a cooling medium by means of, for example, spray cooling ,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP18190361.8A 2017-09-08 2018-08-23 Train de laminage destiné à laminer un produit métallique et procédé de fonctionnement d'un train de laminage Active EP3453466B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017215851.4A DE102017215851A1 (de) 2017-09-08 2017-09-08 Walzstraße zum Walzen eines metallischen Guts und Verfahren zum Betreiben einer Walzstraße

Publications (2)

Publication Number Publication Date
EP3453466A1 true EP3453466A1 (fr) 2019-03-13
EP3453466B1 EP3453466B1 (fr) 2020-10-21

Family

ID=63371512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18190361.8A Active EP3453466B1 (fr) 2017-09-08 2018-08-23 Train de laminage destiné à laminer un produit métallique et procédé de fonctionnement d'un train de laminage

Country Status (2)

Country Link
EP (1) EP3453466B1 (fr)
DE (1) DE102017215851A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20006508U1 (de) * 2000-04-08 2000-08-31 Achenbach Buschhuetten Gmbh Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinband- und Folienwalzwerke
EP1044724A2 (fr) * 1999-04-14 2000-10-18 Klaschka Gmbh & Co. Procédé et dispositif de pulvérisation sur des objets
DE10131369A1 (de) 2001-06-28 2003-01-09 Sms Demag Ag Verfahren und Vorrichtung zum Kühlen und Schmieren von Walzen eines Walzgerüstes
WO2013167642A1 (fr) * 2012-05-11 2013-11-14 Sms Siemag Ag Dispositif de refroidissement de cylindres

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1044724A2 (fr) * 1999-04-14 2000-10-18 Klaschka Gmbh & Co. Procédé et dispositif de pulvérisation sur des objets
DE20006508U1 (de) * 2000-04-08 2000-08-31 Achenbach Buschhuetten Gmbh Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinband- und Folienwalzwerke
DE10131369A1 (de) 2001-06-28 2003-01-09 Sms Demag Ag Verfahren und Vorrichtung zum Kühlen und Schmieren von Walzen eines Walzgerüstes
WO2013167642A1 (fr) * 2012-05-11 2013-11-14 Sms Siemag Ag Dispositif de refroidissement de cylindres
EP2846940B1 (fr) 2012-05-11 2016-08-31 SMS group GmbH Dispositif de refroidissement de cylindres

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Publication number Publication date
EP3453466B1 (fr) 2020-10-21
DE102017215851A1 (de) 2019-03-14

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