EP2459336B1 - Dispositif et procédé pour la détection de la répartition de pression du milieu réfrigérant appliqué dans une installation de coulée continue ou un train de laminoir - Google Patents

Dispositif et procédé pour la détection de la répartition de pression du milieu réfrigérant appliqué dans une installation de coulée continue ou un train de laminoir Download PDF

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Publication number
EP2459336B1
EP2459336B1 EP10740161.4A EP10740161A EP2459336B1 EP 2459336 B1 EP2459336 B1 EP 2459336B1 EP 10740161 A EP10740161 A EP 10740161A EP 2459336 B1 EP2459336 B1 EP 2459336B1
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EP
European Patent Office
Prior art keywords
cooling medium
pressure measuring
continuous casting
measuring film
strip
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.)
Active
Application number
EP10740161.4A
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German (de)
English (en)
Other versions
EP2459336A2 (fr
Inventor
Norbert Vogl
Dirk Lieftucht
Uwe Plociennik
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 Siemag AG
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SMS Siemag AG
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Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2459336A2 publication Critical patent/EP2459336A2/fr
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Publication of EP2459336B1 publication Critical patent/EP2459336B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1246—Nozzles; Spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary 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
    • B21B45/0266—Measuring or controlling thickness of liquid films

Definitions

  • the invention is in the field of detecting the pressure distribution of the cooling medium applied in a continuous casting plant or rolling mill.
  • devices with sensors are introduced into the roll gap of the continuous casting or rolling mill.
  • Devices and methods are known in which devices are introduced into the roller gap, which are able to determine the spray water distribution in binary at a few discrete points.
  • EP 0166 068 A1 discloses a device for checking the spray nozzles of a continuous casting machine.
  • this comprises a plurality of vibration sensors, which are arranged distributed over a transverse to the injection direction of the spray nozzle measuring surface, as well as the spray nozzles exposed connected with transducers membranes.
  • the transducers respond to the vibration frequencies of the membranes.
  • the invention initially comprises a device for detecting the pressure distribution of cooling medium in a continuous casting or rolling mill, wherein the continuous casting or rolling mill comprises at least one pair of rollers forming a roller gap in which a strand passed can be, wherein in the casting direction before and / or behind the at least one pair of rollers spray water nozzles are arranged, which can act on a strand with cooling medium and wherein the device has substantially the dimensions of a strand with respect to the width direction and / or the thickness direction and the device has at least one pressure measuring film which is arranged on the surface of the device, so that the pressure distribution of the cooling medium can be detected by the pressure measuring film when the device instead of a strand in the continuous casting or rolling mill is leads.
  • Such a device can easily detect or characterize the spray water areas or spray cones of individual nozzles with a very high local resolution.
  • the pressure of occurring splash water can also be detected, whereby knowledge of the exact distribution of coolant on the strand surface is obtained.
  • the at least one pressure measuring film is arranged over the entire width of the device.
  • This arrangement of the pressure measuring film, the function of the spray water nozzles can be tested over the entire width of a strand.
  • the pressure measuring film is arranged on the top and / or bottom of the device.
  • the pressure measuring film has a thickness of less than 0.5 mm.
  • Such a thinly selected measuring film has the advantage that it only minimally increases the thickness of the device and thus has virtually no influence on the thickness of the device.
  • the pressure measuring film is arranged in a recess of the device whose depth corresponds to the thickness of the pressure measuring film.
  • the pressure measuring foil can then be installed flush with the surface of the device, which results in even more realistic measuring conditions in comparison with an actual strand.
  • the pressure measuring film is designed as a flexible grid of pressure-sensitive sensors.
  • each sensor is formed by a matrix of rows and columns of semiconductor material whose electrical resistance changes when a force is exerted on it.
  • the device comprises a nozzle exchange device for changing nozzles.
  • any defective nozzles have been found by the device described above, they can be replaced directly by an exchange device in the device.
  • the nozzle exchange device comprises a robot arm, which can remove and / or install nozzles.
  • the invention further comprises a method for detecting the pressure distribution of cooling medium in a continuous casting or rolling mill, wherein the continuous casting or rolling mill comprises at least one pair of rollers, which forms a roller gap and between which a strand can be passed through, wherein in the casting before and / or behind the at least one pair of rollers spray water nozzles are arranged, which can act on a strand with cooling medium, wherein a device is introduced instead of a strand in the continuous casting or rolling mill, so that the pressure distribution of the cooling medium can be detected, the device substantially Dimensions of a strand with respect to the width direction and / or the thickness direction and the device comprises at least one pressure measuring film for detecting the pressure distribution.
  • the method has substantially the same advantages as the present device for detecting the pressure distribution of cooling medium.
  • the device comprises an evaluation device with which the detected pressure distribution of the cooling medium is represented computer-aided.
  • data detected by the pressure measuring film are transmitted to the evaluation device.
  • the splash water formation in the casting direction in front of the rollers is detected by the pressure measuring film.
  • the device comprises a nozzle exchange device, are replaced by the defective nozzles.
  • the heat transfer between strand and water spray and splash water can also be determined by comparison with reference values. This allows the calculation of the temperature distribution of the strand with the current water supply. This calculation is part of the evaluation unit.
  • FIGS. 1a and 1b show a common arrangement of rollers 3 in a roll carpet of a continuous casting in two different perspectives.
  • the rollers 3 form opposite pairs of rollers. Between the rollers 3 are in the casting direction (for example, in FIGS. 1a and 1b from top to bottom) spray water nozzles arranged. Shown are in FIGS. 1a and 1b whose nozzle sticks 4, at the ends of which the nozzles (not explicitly shown) are located. These nozzles spray cooling medium or water onto a strand. Such a strand (not shown) moves in the roller gap between the rollers 3 of a respective pair of rollers. In this case, the spray water forms a spray water cone 5 or a spray water region on a strand running between the rolls.
  • FIG. 2 Now, an inventive device 1 is shown. This can instead of a strand in the continuous casting, as they, for example, in the FIGS. 1a and 1b shown is retracted.
  • the device 1 is formed from a body which substantially coincides with a strand with respect to the width dimension and the thickness dimension, that is, for example, has the same cross-section as a strand.
  • a pressure measuring film 2 is now mounted on the surface of the device 1, preferably on one of the broad sides, of the strand.
  • the pressure measuring film 2 can, as in FIG. 2 can be arranged over the entire width of the device.
  • Such pressure measuring films 2 are commercial available, such as by the company Tekscan Inc., South Boston, USA.
  • Corresponding pressure measuring films have high resolutions of, for example, 248 measuring points per cm 2 . Acquisition rates can be 10,000 Hz or more. Thicknesses of such pressure measuring foils 2 can be, for example, only 0.1 mm, so that they almost do not influence a measurement by their intrinsic thickness.
  • such films 2 are designed to be a flexible grid of pressure-sensitive sensors, each sensor being formed by a matrix of rows and columns of semiconductor material whose electrical resistance changes when a force is applied thereto.
  • the data determined by the pressure measuring film 2 can be transmitted, preferably via a wireless connection, to a preferably external evaluation device, which also displays the spray and splash water distribution on the surface graphically. It is also possible to determine the heat transfer conditions using reference values and to calculate the temperatures of the strand.
  • a data memory and / or at least a part of the evaluation device is arranged within the device 1.
  • sensors may be disposed on the surface of the apparatus in addition to the pressure gauge sheet 2, such as pressure sensors of other types or temperature sensors and other sensors for measuring the conditions on the steel surface.
  • a nozzle replaceable device 6 can be arranged in the body of the device 1.
  • This device 6 can serve to replace defective nozzles. This can be done, for example, by a robotic arm be located within the device in a recess under a hinged lid and can if necessary install and remove nozzles.
  • FIG. 3 shows the device 1 according to FIG. 2 in the roll nip of a roll carpet like he already in the Figures 1a or 1b is shown.
  • the device 1 is inserted instead of a strand in the continuous casting.
  • the rollers 3, 4 nozzle blocks and spray cone 5 are also shown the continuous casting.
  • the device 1 comprises a pressure measuring film 2, which is arranged on one of the broad sides of the device 1, so that the pressure distribution of the cooling medium through the film 2 can be detected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measuring Fluid Pressure (AREA)

Claims (13)

  1. Dispositif (1) pour la détection de la répartition de pression d'un milieu de refroidissement dans une installation de coulée continue ou dans un train de laminoir, dans lequel l'installation de coulée continue ou le train de laminoir comprend au moins une paire de rouleaux (3) qui forment une emprise de rouleaux pour la traversée d'une barre, dans lequel devant et/ou derrière ladite au moins une paire de rouleaux (3) en direction de coulée sont agencées des buses de pulvérisation d'eau qui peuvent asperger la barre avec le milieu de refroidissement, caractérisé en ce que le dispositif (1) présente sensiblement les dimensions d'une barre par référence à la direction en largeur et/ou la direction en épaisseur, et en ce que le dispositif comprend au moins un film de mesure de pression (2), qui est agencé à la surface du dispositif (1), pour détecter la répartition de pression du milieu de refroidissement quand le dispositif (1) est introduit dans l'installation de coulée continue ou dans le train de laminoir à la place d'une barre.
  2. Dispositif selon la revendication 1, dans lequel ledit au moins un film de mesure de pression (2) est agencé sur la totalité de la largeur du dispositif (1).
  3. Dispositif selon l'une des revendications précédentes, dans lequel le film de mesure de pression (2) est agencé sur le côté supérieur et/ou sur le côté inférieur du dispositif (1).
  4. Dispositif selon l'une des revendications précédentes, dans lequel le film de mesure de pression (2) a une épaisseur de moins de 0,5 mm.
  5. Dispositif selon l'une des revendications précédentes, dans lequel le film de mesure de pression (2) est agencé dans un évidement du dispositif (1) dont la profondeur correspond à l'épaisseur du film de mesure de pression (2).
  6. Dispositif selon l'une des revendications précédentes, dans lequel le film de mesure de pression (2) est réalisé comme un réseau grillagé flexible de capteurs sensibles à la pression.
  7. Dispositif selon la revendication 6, dans lequel chaque capteur est formé par une matrice de lignes et de colonnes d'un matériau semi-conducteur, dont la résistance électrique varie lorsqu'on exerce une force sur celui-ci.
  8. Dispositif selon l'une des revendications précédentes, dans lequel le dispositif comprend un système d'échange de buses (6) pour l'échange de buses.
  9. Dispositif selon la revendication 8, dans lequel le système d'échange de buses (6) comprend un bras robot, qui est capable de démonter et/ou de monter des buses.
  10. Procédé pour la détection de la répartition de pression d'un milieu de refroidissement dans une installation de coulée continue ou dans un train de laminoir, dans lequel l'installation de coulée continue ou le train de laminoir comprend au moins une paire de rouleaux, qui forment une emprise de rouleaux et entre lesquels peut être passée une barre, dans lequel devant et/ou derrière ladite au moins une paire de rouleaux en direction de coulée sont agencées des buses de pulvérisation d'eau, qui peuvent asperger la barre avec le milieu de refroidissement, et dans lequel on introduit un dispositif à la place d'une barre dans l'installation de coulée continue ou dans le train de laminoir, de telle façon qu'il est possible de détecter la répartition de pression du milieu de refroidissement,
    caractérisé en ce que le dispositif présente sensiblement les dimensions d'une barre par référence à la direction en largeur et/ou la direction en épaisseur, et en ce que le dispositif (1) comprend au moins un film de mesure de pression (2) pour la détection de la répartition de pression.
  11. Procédé selon la revendication 10, dans lequel le dispositif comprend un moyen d'évaluation, et la répartition de pression détectée du milieu de refroidissement est représentée, de façon assistée par un calculateur, à l'aide du moyen d'évaluation.
  12. Procédé selon la revendication 11, dans lequel des données détectées via le film de mesure de pression (2) sont transmises au moyen d'évaluation de préférence sans fil.
  13. Procédé selon l'une des revendications 10 à 12, dans lequel le dispositif comprend un système d'échange de buses (6) et au moyen de ce système d'échange de buses (6), en particulier un bras robot, il est possible d'échanger des buses défectueuses.
EP10740161.4A 2009-07-30 2010-07-29 Dispositif et procédé pour la détection de la répartition de pression du milieu réfrigérant appliqué dans une installation de coulée continue ou un train de laminoir Active EP2459336B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910035402 DE102009035402A1 (de) 2009-07-30 2009-07-30 Vorrichtung und Verfahren zur Detektion der Druckverteilung des in einer Stranggießanlage oder Walzstraße aufgebrachten Kühlmediums
PCT/EP2010/004635 WO2011012303A2 (fr) 2009-07-30 2010-07-29 Dispositif et procédé pour la détection de la répartition de pression du milieu réfrigérant appliqué dans une installation de coulée continue ou un train de laminoir

Publications (2)

Publication Number Publication Date
EP2459336A2 EP2459336A2 (fr) 2012-06-06
EP2459336B1 true EP2459336B1 (fr) 2013-09-04

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EP10740161.4A Active EP2459336B1 (fr) 2009-07-30 2010-07-29 Dispositif et procédé pour la détection de la répartition de pression du milieu réfrigérant appliqué dans une installation de coulée continue ou un train de laminoir

Country Status (4)

Country Link
EP (1) EP2459336B1 (fr)
CN (1) CN102497940A (fr)
DE (1) DE102009035402A1 (fr)
WO (1) WO2011012303A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015002457U1 (de) 2014-11-06 2015-04-29 Sms Siemag Ag Vorrichtung zum Überprüfen der Funktionstüchtigkeit einer Spritzdüse

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005860A1 (de) 2011-02-17 2012-08-23 Sms Siemag Ag Vorrichtung und Verfahren zur Prüfung einer Stranggießanlage
CN102861889B (zh) * 2012-09-07 2014-06-18 首钢总公司 一种连铸机二冷喷嘴冲击力的冷态检测方法
CN103487249B (zh) * 2013-10-08 2017-01-11 首钢京唐钢铁联合有限责任公司 连铸扇形段喷嘴工作状态判定系统及判定方法
CN104729838B (zh) * 2013-12-24 2017-09-12 上海梅山钢铁股份有限公司 一种实现冷轧轧机精细冷却喷梁离线测试装置及测试方法
CN112024838A (zh) * 2020-09-09 2020-12-04 广东韶钢松山股份有限公司 喷嘴的喷射状态检测装置及检测方法

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Publication number Priority date Publication date Assignee Title
DE2107789A1 (en) * 1971-02-18 1972-08-31 Schloemann AG, 4000 Düsseldorf Continuous casting spray nozzle check - carried out in situ by load cells
SU554065A1 (ru) * 1976-01-22 1977-04-15 Краматорский Научно-Исследовательский И Проектно-Технологический Институт Машиностроения Устройство дл контрол системы форсуночного охлаждени
NL7811774A (nl) 1978-12-01 1980-06-03 Hoogovens Ijmuiden Bv Werkwijze voor het controleren van vloeistofsproeiers in een continu-gietmachine en een meetdoos te gebrui- ken daarbij.
JPS57127505A (en) * 1981-01-22 1982-08-07 Nippon Steel Corp Direct rolling manufacturing device for steel
AT377460B (de) * 1982-03-18 1985-03-25 Voest Alpine Ag Vorrichtung zum ueberpruefen der spritzduesen einer stranggiessmaschine
SE464619B (sv) * 1985-09-13 1991-05-27 Olsson Ag Erik Saett och anlaeggning foer straenggjutning med horisontell eller lutande kokill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015002457U1 (de) 2014-11-06 2015-04-29 Sms Siemag Ag Vorrichtung zum Überprüfen der Funktionstüchtigkeit einer Spritzdüse

Also Published As

Publication number Publication date
WO2011012303A2 (fr) 2011-02-03
EP2459336A2 (fr) 2012-06-06
WO2011012303A3 (fr) 2011-03-31
DE102009035402A1 (de) 2011-02-03
CN102497940A (zh) 2012-06-13

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