EP0356552B1 - Procédé de réglage de fermetures à tiroir, en particulier dans les installations de coulée continue - Google Patents

Procédé de réglage de fermetures à tiroir, en particulier dans les installations de coulée continue Download PDF

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Publication number
EP0356552B1
EP0356552B1 EP88114177A EP88114177A EP0356552B1 EP 0356552 B1 EP0356552 B1 EP 0356552B1 EP 88114177 A EP88114177 A EP 88114177A EP 88114177 A EP88114177 A EP 88114177A EP 0356552 B1 EP0356552 B1 EP 0356552B1
Authority
EP
European Patent Office
Prior art keywords
edge
control
values
edge reversal
throttled
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.)
Expired - Lifetime
Application number
EP88114177A
Other languages
German (de)
English (en)
Other versions
EP0356552A1 (fr
Inventor
Silvio Cecchini
Walter Vetterli
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.)
Metacon AG
Original Assignee
Metacon AG
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 Metacon AG filed Critical Metacon AG
Priority to EP88114177A priority Critical patent/EP0356552B1/fr
Priority to DE8888114177T priority patent/DE3869957D1/de
Priority to AT88114177T priority patent/ATE74544T1/de
Priority to ES198888114177T priority patent/ES2032509T3/es
Priority to ZA895236A priority patent/ZA895236B/xx
Priority to CA000607348A priority patent/CA1310249C/fr
Priority to CS19894790A priority patent/CZ286155B6/cs
Priority to PL89281130A priority patent/PL163987B1/pl
Priority to JP1215160A priority patent/JPH0289560A/ja
Priority to AR89314758A priority patent/AR244119A1/es
Priority to CN89106660A priority patent/CN1019282B/zh
Priority to US07/399,200 priority patent/US5048594A/en
Priority to MX017349A priority patent/MX172488B/es
Priority to HU894508A priority patent/HU207676B/hu
Priority to SU894614847A priority patent/SU1739839A3/ru
Publication of EP0356552A1 publication Critical patent/EP0356552A1/fr
Application granted granted Critical
Publication of EP0356552B1 publication Critical patent/EP0356552B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/38—Means for operating the sliding gate
    • 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
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/186—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using electric, magnetic, sonic or ultrasonic means

Definitions

  • this simple method preferably keeps the bath level fluctuations that occur when alternating use of edge changes in fill level controls within required limits, especially when the throttle position to be taken after an edge change represents an average of at least two previously determined throttle positions.
  • the invention recommends that an edge change is initiated and / or ended by a reinforced throttling preprogrammed in the sequence control, which is designed as a stroke extension held over a period of time.
  • a reinforced throttling preprogrammed in the sequence control, which is designed as a stroke extension held over a period of time.
  • the values of the reinforced throttling should expediently be less than 10 mm for the hub additions and less than 10 seconds for the time spans, it being advantageous to choose values of the throttling reinforced on the input side greater than the values of the throttling reinforced at the end.
  • edge changes of the slide plate 5, which are particularly evident from FIGS. 3 and 4, are programmed in the processor 20 with the aid of a subroutine. That means from time to time after switching off the program control of the fill level 14 by means of the subroutine instead of the throttle edge K1, the throttle edge K2 is brought into the regulating throttle position D2 and the fill level control is then switched on again.
  • the throttle characteristic curve according to FIG. 5 shows such edge changes that can be defined periodically.
  • the throttle edge K1 reaches the throttle position D1 defined in the processor when the slide plate 5 is extended with the stroke H1 from the open position A shown in FIG. 5 as a horizontal line (see also FIG. 2).
  • This correction is conveyed to the actuator 10 of the slide closure 3 by the processor 20, which receives and stores a value about the current position of the actuator 10 immediately before an edge change after switching off the level control 22, then from the last two values M1, for example and M2 determines an average value M3, which is the control command for the new throttle position D1 to be assumed (FIG. 5).
  • the control method of the slide closure 3 just described during an edge change of the slide plate 5 undergoes a training in accordance with FIG. This is done by means of a hub extension HX stored in the processor 20, which acts over the time tx and lowers the bath level in the mold 9 in order to compensate for the additional inflow of melt into the mold 9 that is to be expected during an edge change.
  • FIG. 5 The number of edge changes and their control variants according to the exemplary embodiments according to FIG. 5, FIG. 6 as well as FIGS. 7 and 8 are to be adapted to the respective slide closures 3 or the casting conditions of a continuous casting installation, whereby it can generally be assumed that more precise control processes (for example FIG. 7) for smaller mold cross sections and 8) apply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Feedback Control In General (AREA)

Claims (6)

  1. Procédé de commande d'obturateurs à tiroir, notamment d'un obturateur à tiroir à trois plaques, dont la plaque de tiroir est commandée de façon automatique au moyen d'un processeur et règle dans une position d'étranglement le niveau de remplissage de la masse en fusion d'une lingotière et qui, au cours d'un arrêt momentané du système de réglage du niveau de remplissage, effectue en outre un changement d'arête de l'arête de réglage, par une course d'ouverture, commandée de façon automatique, vers une position d'étranglement opposée sur le canal de passage de l'obturateur à tiroir, caractérisé par le fait qu'au moins la position d'étranglement (D1 ou D2) devant être occupée par la plaque de tiroir (5) après un changement d'arête (23) est consignée par une commande séquentielle du changement d'arête, programmée avec le processeur (20) du système de réglage du niveau de remplissage.
  2. Procédé selon la revendication 1, caractérisé par le fait qu'avant chaque changement d'arête (23), la commande séquentielle mesure une ou plusieurs positions d'étranglement (D1 et D2) le précédant et détermine à partir de ces positions la position d'étranglement (D1 ou D2) devant être occupée après le changement d'arête (23).
  3. Procédé selon la revendication 2, caractérisé par le fait que la position d'étranglement (D1 ou D2) devant être occupée après un changement d'arête (23) est une valeur moyenne (M3) établie à partir d'au moins deux positions d'étranglement (M1 et M2) déterminées auparavant.
  4. Procédé selon les revendications 1 à 3, caractérisé par le fait que le changement d'arête (23) est amorcé et/ou terminé par un étranglement renforcé préprogrammé, avec un complément de course (HX) et/ou (HY) maintenu pendant un laps de temps (tx) et/ou (ty).
  5. Procédé selon la revendication 4, caractérisé par le fait que pour les étranglements renforcés (HX, tx et HY, ty), les valeurs pour les compléments de course et (HX et HY) sont inférieures à 10 mm et les valeurs pour les laps de temps (tx et ty) sont inférieures à 10 secondes.
  6. Procédé selon les revendications 4 et 5, caractérisé par le fait que les valeurs de l'étranglement renforcé côté entrée (Hx, tx) sont supérieures aux valeurs côté sortie (HY, ty).
EP88114177A 1988-08-31 1988-08-31 Procédé de réglage de fermetures à tiroir, en particulier dans les installations de coulée continue Expired - Lifetime EP0356552B1 (fr)

Priority Applications (15)

Application Number Priority Date Filing Date Title
EP88114177A EP0356552B1 (fr) 1988-08-31 1988-08-31 Procédé de réglage de fermetures à tiroir, en particulier dans les installations de coulée continue
DE8888114177T DE3869957D1 (de) 1988-08-31 1988-08-31 Verfahren zum steuern von schieberverschluessen, insbesondere an stranggiessanlagen.
AT88114177T ATE74544T1 (de) 1988-08-31 1988-08-31 Verfahren zum steuern von schieberverschluessen, insbesondere an stranggiessanlagen.
ES198888114177T ES2032509T3 (es) 1988-08-31 1988-08-31 Procedimiento para el control de valvulas de compuerta deslizantes, en especial en instalaciones de colada continua.
ZA895236A ZA895236B (en) 1988-08-31 1989-07-10 Method of controlling sliding gate valves,particularly on continuous casting installations
CA000607348A CA1310249C (fr) 1988-08-31 1989-08-02 Methode de commande de robinets-vannes a guillotive, en particulier sur desinstallations de coulee en continu
CS19894790A CZ286155B6 (cs) 1988-08-31 1989-08-14 Způsob ovládání šoupátkových uzávěrů, zejména u zařízení pro plynulé odlévání
PL89281130A PL163987B1 (pl) 1988-08-31 1989-08-22 Sposób sterowania zamknieciem zasuwowym, zwlaszcza w metalurgicznych urzadzeniachdo odlewania ciaglego PL PL PL
JP1215160A JPH0289560A (ja) 1988-08-31 1989-08-23 摺動閉鎖装置を制御する方法
AR89314758A AR244119A1 (es) 1988-08-31 1989-08-25 Un procedimiento para posicionar selectivamente la placa de corredera de un cierre a corredera, utilizado en instalaciones de colada continua.
CN89106660A CN1019282B (zh) 1988-08-31 1989-08-26 特别适用于连续铸造设备的闸阀控制法
US07/399,200 US5048594A (en) 1988-08-31 1989-08-28 Process for controlling change of throttling position in a sliding closure unit
MX017349A MX172488B (es) 1988-08-31 1989-08-29 Procedimiento para controlar cierres a corredera, especialmente en las instalaciones de colada continua
HU894508A HU207676B (en) 1988-08-31 1989-08-30 Method for steering sluice valve particularly at rod-casting apparatuses
SU894614847A SU1739839A3 (ru) 1988-08-31 1989-08-30 Способ управлени разливкой металла

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88114177A EP0356552B1 (fr) 1988-08-31 1988-08-31 Procédé de réglage de fermetures à tiroir, en particulier dans les installations de coulée continue

Publications (2)

Publication Number Publication Date
EP0356552A1 EP0356552A1 (fr) 1990-03-07
EP0356552B1 true EP0356552B1 (fr) 1992-04-08

Family

ID=8199247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114177A Expired - Lifetime EP0356552B1 (fr) 1988-08-31 1988-08-31 Procédé de réglage de fermetures à tiroir, en particulier dans les installations de coulée continue

Country Status (15)

Country Link
US (1) US5048594A (fr)
EP (1) EP0356552B1 (fr)
JP (1) JPH0289560A (fr)
CN (1) CN1019282B (fr)
AR (1) AR244119A1 (fr)
AT (1) ATE74544T1 (fr)
CA (1) CA1310249C (fr)
CZ (1) CZ286155B6 (fr)
DE (1) DE3869957D1 (fr)
ES (1) ES2032509T3 (fr)
HU (1) HU207676B (fr)
MX (1) MX172488B (fr)
PL (1) PL163987B1 (fr)
SU (1) SU1739839A3 (fr)
ZA (1) ZA895236B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ305241B6 (cs) * 2000-03-16 2015-07-01 Vesuvius Crucible Company Zařízení na odměřování průtoku při kontinuálním lití roztaveného kovu a příslušný způsob

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GB2311947A (en) * 1996-03-12 1997-10-15 Flogates Ltd Sliding gate valve
EP2272605A1 (fr) * 2009-06-24 2011-01-12 Siemens AG Procédé de réglage pour la surface de bain d'une coquille de coulée par faisceau
AU2011245743C1 (en) * 2010-04-30 2015-04-23 Refractory Intellectual Property Gmbh & Co. Kg Measurements in metallurgical vessels
CN103084566B (zh) * 2011-11-07 2016-08-03 上海宝信软件股份有限公司 钢包调控系统
US10059513B1 (en) 2013-01-04 2018-08-28 Schlagel, Inc. Gate with anti-fouling proximity indicators for handling agricultural granular materials
CA2838446C (fr) 2013-01-04 2017-02-21 Schlagel, Inc. Barriere a commande de barriere variable pour la manutention des matieres granulaires agricoles
CN104759612A (zh) * 2015-04-09 2015-07-08 马钢(集团)控股有限公司 长水口插入式开浇装置及方法
CN105665675A (zh) * 2016-04-07 2016-06-15 江苏永钢集团有限公司 连铸机结晶器内钢水液位自动控制报警系统
CN107127325B (zh) * 2017-05-03 2018-10-09 上海弘智金属制品有限公司 一种端盖铸造装置
CN111168029B (zh) * 2020-01-14 2022-04-05 邢台钢铁有限责任公司 一种连铸机大包自动浇铸的控制方法
CN111250683B (zh) * 2020-02-12 2021-07-30 上海中天铝线有限公司 无模型自适应的轧机浇铸液位控制方法、装置及存储介质
CN111250684B (zh) * 2020-02-12 2021-08-13 上海中天铝线有限公司 基于轧机浇铸装置的液位控制方法、装置及存储介质

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DE1910247A1 (de) * 1969-02-28 1970-09-10 Neitzel Dipl Ing Martin Vorrichtung und Verfahren zum Abgiessen von metallurgischen Schmelzen und aehnlichen Produkten
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Publication number Priority date Publication date Assignee Title
CZ305241B6 (cs) * 2000-03-16 2015-07-01 Vesuvius Crucible Company Zařízení na odměřování průtoku při kontinuálním lití roztaveného kovu a příslušný způsob

Also Published As

Publication number Publication date
ATE74544T1 (de) 1992-04-15
HUT54574A (en) 1991-03-28
CA1310249C (fr) 1992-11-17
CN1040528A (zh) 1990-03-21
MX172488B (es) 1993-12-17
CS479089A3 (en) 1991-10-15
EP0356552A1 (fr) 1990-03-07
DE3869957D1 (de) 1992-05-14
JPH0289560A (ja) 1990-03-29
US5048594A (en) 1991-09-17
PL163987B1 (pl) 1994-06-30
ES2032509T3 (es) 1993-02-16
SU1739839A3 (ru) 1992-06-07
CN1019282B (zh) 1992-12-02
HU207676B (en) 1993-05-28
ZA895236B (en) 1990-04-25
CZ286155B6 (cs) 2000-01-12
AR244119A1 (es) 1993-10-29

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