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WO2012052118A2 - Dispositif de refroidissement de bandes ou de tôles métalliques transportées sur une voie de transport - Google Patents

Dispositif de refroidissement de bandes ou de tôles métalliques transportées sur une voie de transport Download PDF

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Publication number
WO2012052118A2
WO2012052118A2 PCT/EP2011/004999 EP2011004999W WO2012052118A2 WO 2012052118 A2 WO2012052118 A2 WO 2012052118A2 EP 2011004999 W EP2011004999 W EP 2011004999W WO 2012052118 A2 WO2012052118 A2 WO 2012052118A2
Authority
WO
WIPO (PCT)
Prior art keywords
cooling
outlet openings
control
outlet
opening
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.)
Ceased
Application number
PCT/EP2011/004999
Other languages
German (de)
English (en)
Other versions
WO2012052118A3 (fr
Inventor
Eckhard Fohr
Hans Günther CHRIST
Jürgen DREVERMANN
Ingolf JÄCKEL
Horst Walter Tamler
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.)
CMI M+W Engineering GmbH
Original Assignee
CMI M+W Engineering 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 CMI M+W Engineering GmbH filed Critical CMI M+W Engineering GmbH
Publication of WO2012052118A2 publication Critical patent/WO2012052118A2/fr
Publication of WO2012052118A3 publication Critical patent/WO2012052118A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • 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

Definitions

  • the invention relates to a device for cooling conveyed on a conveyor line metal strips or sheets, in particular of hot rolled steel strips in the outlet of a rolling train, with at least one plurality of Austrittsöfmungen having cooling bars for applying cooling liquid to the metal strip or sheet to be cooled, wherein the Width, over which exits the cooling beam cooling liquid is adjustable and wherein at least one adjusting device is provided, with which the outlet of cooling liquid from the outlet openings is adjustable.
  • the quality of a metal strip emerging from a rolling train depends in particular on the production of hot rolled strips on the uniformity of the geometric and mechanical values over the length and width of the rolled end product.
  • the uniformity of these properties is determined to a great extent by the course of the temperature during the cooling of the strip. Optimal production results can only be achieved if a uniform cooling of the strip over its length as well as across its width is ensured.
  • a chilled beam with a central tube is known, which is connected to a general supply line for cooling liquid.
  • a multiplicity of outlet nozzles arranged at regular intervals in the longitudinal direction of the cooling bar are supplied with cooling fluid via the tube.
  • the outlet nozzles are tubular bent such that they are guided, starting from an upper portion of the tube to each one of the longitudinal sides of the cooling beam and the cooling liquid jet emerging from them is directed substantially perpendicular to the metal strip or sheet to be cooled.
  • a rotary valve is arranged, which extends over the entire length of the tube.
  • an opening is formed in the manner of a backdrop, which also extends in the longitudinal direction.
  • the opening has in the region of one of its longitudinal sides a step-shaped or flowing decreasing edge shape formed symmetrically to the center of the rotary valve.
  • the edge course is shaped such that the opening in a central region of the rotary valve is the most open, while the width of the opening decreases in the direction of the ends of the cooling beam in two stages or fluently. These steps are such that the width of the opening increases and decreases respectively from stage to stage by an amount sufficient to completely cover the inlet openings arranged in the two rows.
  • the opening is brought into coincidence with the rows of inlet openings.
  • the section of the opening which is further opened by one step is then additionally in register with the inlet openings, so that the outlet nozzles assigned to these cooling zones have also been supplied with cooling fluid.
  • Object of the present invention is to provide a device of the type mentioned above, wherein the width over which the cooling liquid is discharged, can be easily adapted to different widths of each to be cooled strip or sheet and wherein a Premature component failure is largely excluded even at high stress during operation. Moreover, it is an object of the present invention to provide a device of the type mentioned above, which in a simple manner controls the amount of coolant supplied to the strip or sheet at a high reproducibility of the coolant discharge. guaranteed. In particular, it is an object of the present invention to provide a device of the type initially available, in which it can not come unintentionally to a leakage of coolant.
  • the actuating device has a camshaft with a plurality of control cam for controlling provided for opening and closing the Austrittsöffhungen tappets.
  • the invention is based on the basic idea to provide a cam control for opening and closing the outlet openings, whereby a simple and reliable way is provided to adjust the width over which cooling liquid is applied, to different widths of each to be cooled tape o- of the sheets.
  • no rotary valve is provided with a shaped like a backdrop opening
  • the inventively provided cam control allows a structural design of the actuator, which is characterized by a high component strength and high security against premature failure distinguished. This will be discussed in detail below.
  • Each outlet opening is preferably associated with a plunger which opens and closes this outlet opening.
  • a specific outlet opening for a coolant supply of the strip or sheet can be released or blocked in a simple manner as needed.
  • each plunger may be associated with a sealing means for liquid-tight closing the outlet opening.
  • the plunger spring-loading be loaded and is pressed at a non-load by the control cam in a closed position. Only when loaded with the control cam of the plunger is displaced against the spring force and brought into a release position, in which then a coolant discharge can be made via the associated this plunger outlet opening.
  • the cooling beam can have a cooling region with a plurality of outlet openings arranged one behind the other in the axial direction, as is also the case with the cooling beam known from DE 199 34 557 C2.
  • each plunger can be actuated individually via a control cam associated therewith and thus each outlet opening, which relates to the coolant discharge via the outlet opening.
  • the inventively provided cam control leads to the advantage that, if necessary, certain areas of the belt or sheet can be supplied with cooling liquid, wherein one area may comprise either several in the axial direction of the cooling bar successive outlet openings or even a single outlet opening. As a result, a very targeted cooling of the strip or sheet over the strip or sheet width is possible, resulting in optimal production results.
  • the coolant discharge can be easily adapted to the actual width of the belt or sheet and reduce the coolant consumption.
  • control cams in the axial direction of the camshaft successively arranged horizontally arranged control cam are provided, wherein at least two consecutive control cams having cams with different arc or control lengths in the circumferential direction.
  • a different length and / or a suitable curve of the cams it is possible that in a certain position of the camshaft several outlet openings are released for a coolant discharge simultaneously.
  • the control length of control cam to control cam gradually increases, preferably, in a zero-degree position of the camshaft all control cams of the cooling area in one of the outlet openings opening position can be arranged.
  • all the control cams in the zero-degree position of the camshaft can be partially superimposed with respect to the middle of the cooling bar in the axial direction, wherein, more preferably, the outermost one, the one end of the cooling bar facing control cam shortest control length and one of the middle of the cooling bar adjacent innermost control cam has the largest control length.
  • stepwise adjustment or rotation of the camshaft can then bring the control cam, starting with the outermost cam and ending with the axially innermost cams in a closed position, so that theharistoff- telaustrag from the outside starting towards the center of the cooling bar below is interrupted.
  • a plurality of consecutive control cams could also have the same control length.
  • the cooling bar may have at each end a cooling area with a plurality of outlet openings for cooling liquid to be opened and closed and a central cooling area with further outlet openings for cooling liquid, wherein the further outlet openings are always open.
  • cooling liquid is always discharged when the cooling beam is supplied with cooling liquid in the middle region of the cooling beam.
  • the outer adjacent the ends of the cooling beam cooling areas can be switched, which, as already described above, the outlet openings can be closed from the outside towards the center of the cooling bar successively, so that the width, about which coolant is discharged, can be easily adapted to different widths of each to be cooled strip or sheet.
  • two each cooling pipe at both ends each having a cooling area with a plurality of outlet openings to be opened and to be closed and a central cooling area with further outlet openings, which are always open, are provided parallel to one another and assigned to a common supply line for cooling liquid.
  • the outlet openings of the first cooling tube and the outlet openings of the second cooling tube can be arranged offset in the axial direction of the cooling bar opposite to each other to ensure a uniformméstoff- telaustrag over the length of the cooling bar.
  • Another aspect of the present invention which may also be provided independently of the cam control described above for achieving the object mentioned above, provides a control or regulating device and a pressure measuring device for measuring the refrigerant pressure in a supply line of the cooling bar, wherein the control or Control device controls the coolant flow through the supply line to the chilled beam in dependence on the measured refrigerant pressure or regulates.
  • the control or Control device controls the coolant flow through the supply line to the chilled beam in dependence on the measured refrigerant pressure or regulates.
  • Fig. 1 is a cooling bar of a device according to the invention for
  • Cooling metal belts or sheets conveyed on a conveyor line in a plan view, 2 is a sectional view taken along the line II-II of Fig. 1,
  • FIG. 3 is a sectional view taken along the line III-III of Fig. 1,
  • FIG. 5 is a plan view of a camshaft as part of a control device designed as a cam control, with the outlet of the cooling liquid from the outlet openings of the cooling bar shown in Figure 1 is adjustable.
  • FIG. 6 is a plan view of a shaft of the camshaft shown in Fig. 5,
  • Fig. 7 is a schematic view of a first cam of the in Fig.
  • FIGS. 8a, 8e are side views of two end disks (FIGS. 8a, 8e) and the first cam disk arranged therebetween, and also a second and a twelfth cam disk of the camshaft illustrated in FIG. 5,
  • FIG. 9 is a schematic diagram of a cam control in the cooling beam shown in Fig. 1 and
  • Fig. 10 is a schematic representation of the control or regulation of
  • Fig. 1 and Fig. 2 is a device for cooling conveyed on a conveyor line metal strips or sheets with a plurality of Outlet openings 1 having cooling bar 2 for applying cooling fluid to the metal strip or sheet to be cooled.
  • an adjusting device is provided, with which the outlet of cooling liquid from the outlet openings 1 is adjustable.
  • the cooling beam has two cooling pipes 4, 5 arranged parallel to one another and assigned to a common supply pipe 3 as a supply line for cooling liquid for discharging the cooling liquid.
  • Each cooling tube 4, 5 has at both ends 8, 9 each have a cooling area A with outlet openings 1, which can be opened or closed as needed, to the width over which the cooling liquid is discharged, in a simple manner to different widths of each band to be cooled or sheet to adapt.
  • each cooling tube 4, 5 has a central cooling region B with further outlet openings 6. The other outlet openings 6 are always open and can not be closed with the adjusting device. In the central region B of the cooling bar 2, there is thus always an application of cooling liquid to the strip or sheet with the associated cooling effect.
  • distributor tubes 7 are welded in the region of the further outlet openings 6 in order to be able to apply the cooling liquid evenly to the strip or sheet. It is not shown that corresponding distribution pipes 7 can also be provided in the cooling areas A in order to ensure a uniform discharge of the coolant to the strip or sheet.
  • the Austrittsöffhungen 1, 6 of the cooling tube 4 and the Austrittsöffhungen 1, 6 of the opposite cooling tube 5 are offset from one another, so that over the width of the strip or sheet a very uniform discharge of cooling liquid and a uniform Cooling are guaranteed.
  • each cooling tube 4, 5 has a stepping motor connection 10 for a camshaft 11 rotatably mounted in the cooling tube 4, 5 and shown in FIG. 5 as part of the adjusting device, with which the outlet of cooling liquid from the Austrittsöffhungen 1 is adjustable.
  • the camshaft 1 1 has twelve cams 12 a to 121 arranged one behind the other in the axial direction with control cams 13 for controlling tappets 14 provided for opening and closing the outlet openings 1.
  • each outlet opening 1 is associated with a plunger 14 which opens or closes this outlet opening 1, so that simple control of the quantity of coolant leaving via the outlet openings 1 is possible.
  • each plunger 14 is spring-loaded, each plunger 14 abutting against a compression spring 15.
  • the plunger 14 of a cooling area A are mounted on bushes 16 in bearing blocks 17, which are provided on the cooling tubes 4, 5.
  • each plunger 14 is assigned a sealing means for liquid-tight closing of the respective outlet opening 1.
  • the cams 12a to 121 are fixed via wedges 18 on a shaft 19 shown in Fig. 6 and form together with the shaft 19, the camshaft 1 1.
  • Complementarily shaped grooves are provided radially inwardly of the cams 12a to 121. This ensures a rotationally secure mounting of the cams 12a to 121 on the shaft 19.
  • the cams 12a to 121 are arranged between two end disks 22, 23.
  • the individual cams 12a to 121 are spaced apart by spacer tubes 24.
  • the end plates 22, 23 and the cam discs 12a to 121 have bores 25 for bolts, not shown, through which the arrangement of the end plates 22, 23 and the cam discs 12a to 121 is fixed with the arranged between the cam discs 12a to 121 spacer tubes 24 to each other.
  • Each axially inboard end plate 23 abuts against a shoulder 26 of the shaft 19, the ends 8, 9 adjacent end plates 22 are welded to the shaft 19.
  • FIG. 7 schematically shows the control of a plunger 14 for opening and closing an outlet opening 1 using the example of the first cam plate 12a of a cooling area A of the cooling bar 2, which is located on the outside in the axial direction or adjacent to the end 8, 9 of the cooling bar 2.
  • Fig. 7a shows the plunger 14 of the axially outward first outlet opening 1 of a cooling area A of the cooling bar 2 in an open position, wherein the plunger 14 is raised by the control cam 13 of the first cam 12a, so that a coolant flow 28 from the annulus
  • a manifold 7 may be inserted and connected in a liquid-tight manner with the sleeve 32 in order to feed the cooling liquid to the belt or sheet to be cooled.
  • FIG. 7a shows the cam 12a in a zero degree position of the camshaft 11.
  • Fig. 7b shows the cam 12a after the camshaft 11 has been pivoted 5 ° to the left
  • Fig. 7c shows the cam 12a after the camshaft 1 1 has been pivoted by 10 ° to the left.
  • FIGS. 7d and 7e show the first cam disc 12a after pivoting the camshaft 11 by 15 ° or by 20 ° to the left.
  • the plunger 14 is located with a radial projection 35 on the O-ring 27 against the sleeve 16, so that a further passage of coolant through the longitudinal groove 30 in the coolant channel 31 is not possible.
  • each cooling region A of a cooling tube 4, 5 has a plurality of in the axial direction of the cooling bar 2 behind.
  • otherwise arranged Austnttsöffhung 1 wherein the plunger 14 is controlled by each outlet opening 1 with an associated control cam 13.
  • the outlet openings 1 can be subsequently closed from the outside to the inside in the direction of the center of the cooling bar 2, that is, from the outlet opening 1 to the outlet opening 1. This makes it possible to easily apply the width over which the cooling liquid is dispensed adjust different widths of each to be cooled strip or sheet. This helps to dispense only as much cooling fluid as is needed for the wetting of the respective band to be cooled across its width.
  • the derred arranged control discs one behind 12a to 121 control cam 13 in the axial direction of the camshaft 1 1 in a cooling portion A with increasing sheet or control length Y a, Y b, ... Yi comprise , This is illustrated in FIGS. 8b to 8d using the example of the first control disk 12a, the second control disk 12b and the twelfth control disk 121.
  • the control length Y increases from cam to cam in each case by the same amount Z, which is shown schematically in Fig. 8d.
  • the outlet openings 1 can be gradually from outside to inside, that is in the direction of the center of the cooling bar 2, close, wherein the axially inwardly disposed most inside outlet opening 1 of a cooling area A is closed last.
  • a control or regulating device 36 and a pressure measuring device 39 can be provided.
  • the pressure measuring device 39 is designed to measure the coolant pressure in a supply line 37 of the cooling beam 2, wherein the control or regulating device 36 controls or regulates a coolant flow 38 through the supply line 37 to the cooling beam 2 via a valve 40 as a function of the measured coolant pressure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

L'invention concerne un dispositif de refroidissement de bandes ou de tôles métalliques transportées sur une voie de transport, notamment de bandes d'acier laminées à chaud en sortie d'un train de laminoir, comprenant au moins une barre de refroidissement (2) présentant une pluralité d'ouvertures de sortie (1,6) pour amener du liquide de refroidissement sur la bande ou la tôle métallique à refroidir, la largeur de l'ouverture par laquelle le liquide de refroidissement sort de la barre de refroidissement (2) pouvant être réglée et au moins un dispositif de réglage étant prévu pour régler la sortie du liquide de refroidissement par les ouvertures de sortie (1). Selon l'invention, le dispositif de réglage comprend un arbre à cames (11) doté d'une pluralité de cames de commande (13) pour commander des coulisseaux (14) prévus pour ouvrir et fermer les ouvertures de sortie (1), des cames de commande (13) étant disposées les unes derrière les autres dans le sens axial de l'arbre à cames (11) et au moins deux cames de commande (13) se trouvant l'une derrière l'autre présentant des contours de commande de différentes longueurs (Y) dans le sens périphérique.
PCT/EP2011/004999 2010-10-21 2011-10-07 Dispositif de refroidissement de bandes ou de tôles métalliques transportées sur une voie de transport Ceased WO2012052118A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010049020 DE102010049020B4 (de) 2010-10-21 2010-10-21 Vorrichtung zum Kühlen von auf einer Förderstrecke geförderten Metallbändern oder -blechen
DE102010049020.2 2010-10-21

Publications (2)

Publication Number Publication Date
WO2012052118A2 true WO2012052118A2 (fr) 2012-04-26
WO2012052118A3 WO2012052118A3 (fr) 2012-07-05

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PCT/EP2011/004999 Ceased WO2012052118A2 (fr) 2010-10-21 2011-10-07 Dispositif de refroidissement de bandes ou de tôles métalliques transportées sur une voie de transport

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Country Link
DE (1) DE102010049020B4 (fr)
WO (1) WO2012052118A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110125192A (zh) * 2018-02-09 2019-08-16 宝山钢铁股份有限公司 一种带内驱动柱塞的热轧层流冷却装置及其内驱动方法
CN110170604A (zh) * 2019-05-25 2019-08-27 徐州国隆电力配件铸造有限公司 一种钢球轧制装置
WO2021035838A1 (fr) * 2019-08-27 2021-03-04 中冶南方工程技术有限公司 Tube de pulvérisation de liquide, dispositif de nettoyage permettant une économie d'énergie et une réduction de consommation, et système de traitement de bande

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017206540A1 (de) * 2017-04-18 2018-10-18 Sms Group Gmbh Vorrichtung und Verfahren zum Kühlen von Metallbändern oder -blechen
DE102018219276A1 (de) * 2018-03-12 2019-09-12 Sms Group Gmbh Kühlgruppe einer Laminarkühlvorrichtung
DE102019106730A1 (de) 2019-03-18 2020-01-02 Primetals Technologies Austria GmbH Kühlung von flachem Walzgut ohne Nachlaufen des Headers
CN114210745B (zh) * 2021-12-30 2023-08-29 重庆钢铁股份有限公司 冷床自动下料方法

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE19934557C2 (de) 1999-07-22 2002-10-24 Thyssenkrupp Stahl Ag Vorrichtung zum Kühlen von auf einer Förderstrecke geförderten Metallbändern oder -blechen

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Publication number Priority date Publication date Assignee Title
DE932242C (de) * 1952-01-10 1955-08-29 Demag Ag Spritzeinrichtung zum Entzundern von Walzgut durch Druckwasser
DE10137596A1 (de) * 2001-08-01 2003-02-13 Sms Demag Ag Verfahren zur Kühlung von Werkstücken, insbesondere von Profilwalzprodukten, aus Schienenstählen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934557C2 (de) 1999-07-22 2002-10-24 Thyssenkrupp Stahl Ag Vorrichtung zum Kühlen von auf einer Förderstrecke geförderten Metallbändern oder -blechen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110125192A (zh) * 2018-02-09 2019-08-16 宝山钢铁股份有限公司 一种带内驱动柱塞的热轧层流冷却装置及其内驱动方法
CN110125192B (zh) * 2018-02-09 2020-07-28 宝山钢铁股份有限公司 一种带内驱动柱塞的热轧层流冷却装置及其内驱动方法
CN110170604A (zh) * 2019-05-25 2019-08-27 徐州国隆电力配件铸造有限公司 一种钢球轧制装置
WO2021035838A1 (fr) * 2019-08-27 2021-03-04 中冶南方工程技术有限公司 Tube de pulvérisation de liquide, dispositif de nettoyage permettant une économie d'énergie et une réduction de consommation, et système de traitement de bande

Also Published As

Publication number Publication date
DE102010049020B4 (de) 2015-02-19
WO2012052118A3 (fr) 2012-07-05
DE102010049020A1 (de) 2012-04-26

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