EP0023897B1 - Installation in a continuous casting plant - Google Patents
Installation in a continuous casting plant Download PDFInfo
- Publication number
- EP0023897B1 EP0023897B1 EP80890078A EP80890078A EP0023897B1 EP 0023897 B1 EP0023897 B1 EP 0023897B1 EP 80890078 A EP80890078 A EP 80890078A EP 80890078 A EP80890078 A EP 80890078A EP 0023897 B1 EP0023897 B1 EP 0023897B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- strand guide
- coil
- fastened
- agitator coil
- 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
Links
- 238000009749 continuous casting Methods 0.000 title claims description 5
- 238000009434 installation Methods 0.000 title description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 description 22
- 238000005266 casting Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
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
- B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields
Definitions
- the invention relates to a device on a continuous casting plant for steel, with a mold and a subsequent strand guide, wherein a stirring coil is provided for generating an electromagnetic traveling field in the molten steel.
- a continuous casting installation as described in the introduction, is known, for example, from DE-AS 1 962 341.
- This device for generating an electromagnetic traveling field are arranged in the region of the casting curve and are firmly connected to the casting curve.
- This embodiment has the disadvantage that the facilities for producing traveling fields are unprotected and can be damaged in the event of strand breaks.
- the removal and installation of the electrical devices after damage is difficult and time-consuming, which results in considerable downtimes and high costs.
- the invention aims to avoid these disadvantages and difficulties and has as its object to provide a continuous casting installation of the type described above, in which damage to the devices for generating the electromagnetic traveling field can be avoided in the event of a strand breakdown or other operational disruptions, and a quicker in the event of a fault Expansion of these facilities is possible regardless of further assembly work on the strand guide itself.
- stirring coil between the operating position on the strand guide and an outside of the strand guide below a strand support supporting the strand guide is in a retracted position either by means of a sliding carriage guided on rails by means of a steep drive or pivotable about a pivot axis.
- the stirring coil can also be quickly withdrawn from the endangered position if a strand break occurs during the casting operation. Furthermore, it is also possible to pull the stirring coil back when removing the strand guide so that removal can take place without hindrance.
- DE-B-1 920 757 From DE-B-1 920 757 it is known, for the purpose of installing and removing parts of the strand guide, to move these parts out of the installed position into a position outside the strand guide frame. In this position outside the strand guide frame, the part to be removed or installed can be manipulated by means of a crane.
- DE-B-1 920 757 does not show how to proceed in the event of operational disruptions, particularly in the event of a strand breakdown; In particular, damage to the parts of the strand guide that are to be installed and removed cannot be prevented in a system according to DE-B-1 920 757.
- An advantageous embodiment is characterized in that the pivot axis is attached to the strand guide frame in a horizontal arrangement.
- the swivel range is expediently limited by stops of the stirring coil in the operating position.
- a cable drum which is fastened to the stirring coil and is connected to a suspension device on the stirring coil itself via a cable and a deflection roller attached to the strand guide frame, advantageously serves for pivoting the stirring coil.
- the sliding carriage on wheels 10 along the guide rails 11, which are supported by supports 12 from the carrier 5 and by further supports 13 from the frame 14, by means of an actuator 15 such as a pressure medium cylinder moved this Actuator 15 is, as can be seen from Fig., Between the Arranged rails 11 and pivotally mounted both on the carrier 16 mounted transversely to the rail direction and on the transfer carriage 7.
- Fig. 1 the feed position 17 of the stirring coil 8 is further shown in dash-dotted lines.
- both the carrier 16 and the actuator 15 are removed and the sliding carriage 7 is moved on the rail 11 up to the rear stop 18.
- the stirring coil is lowered into a position between the rails by a crane (not shown) and fastened to the transfer carriage by means of screws.
- the stirring coil in connection with the sliding carriage 7 is pulled into the operating position and the actuator 15 with the carrier 16 is mounted on the rail 11.
- FIG. 3 shows an enlarged representation of a guide rail 11 which is advantageously designed as a hollow box profile and on which a wear strip 19 is screwed, whereupon the wheels 10 of the transfer carriage 7 roll.
- FIG. 4 A further preferred embodiment of the invention is shown in FIG. 4, the same parts being provided with the same reference numbers.
- the stirring coil 8 can be pivoted from a fully excellent operating position set on the strand guide 3 into a retracted position shown in dash-dot lines around a horizontal axis 20 fastened to the frame.
- the stirring coil 8 is detachably attached to a crossbar 21.
- a cable drum 22 is arranged on the side of the stirring coil and is connected to a suspension device 26 on the stirring coil 8 via a cable 23 and a deflection roller 25 fastened to a lateral support 24 of the strand guide frame.
- the pivoting range is advantageously limited by stops, the stop 27 of the stirring coil 8 interacting with the stop 28 of the casting bow in the operating position and the entire cross member 21 resting on the supports 29 of the casting frame in the retracted position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
Die Erfindung betrifft eine Einrichtung an einer Stranggießanlage für Stahl, mit einer Kokille und einer daran anschließenden Strangführung, wobei eine Rührspule zur Erzeugung eines elektromagnetischen Wanderfeldes im schmelzflüssigen Stahl vorgesehen ist.The invention relates to a device on a continuous casting plant for steel, with a mold and a subsequent strand guide, wherein a stirring coil is provided for generating an electromagnetic traveling field in the molten steel.
Eine Stranggießanlage, wie einleitend beschrieben, ist beispielsweise aus der DE-AS 1 962 341 bekannt. Bei dieser sind Einrichtungen zur Erzeugung eines elektromagnetischen Wanderfeldes im Bereich des Gießbogens angeordnet und fest mit dem Gießbogen verbunden. Diese Ausführung hat den Nachteil, daß die Einrichtungen zur Wanderfelderzeugung ungeschützt sind und bei Strangdurchbrüchen beschädigt werden können. Außerdem gestaltet sich der nach einer Beschädigung erfolgte Aus-und Einbau der elektrischen Einrichtungen schwierig und zeitaufwendig, was erhebliche Stillstandzeiten und hohe Kosten zur Folge hat.A continuous casting installation, as described in the introduction, is known, for example, from DE-AS 1 962 341. In this device for generating an electromagnetic traveling field are arranged in the region of the casting curve and are firmly connected to the casting curve. This embodiment has the disadvantage that the facilities for producing traveling fields are unprotected and can be damaged in the event of strand breaks. In addition, the removal and installation of the electrical devices after damage is difficult and time-consuming, which results in considerable downtimes and high costs.
Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Stranggießanlage der eingangs beschriebenen Art zu schaffen, bei welcher im Falle eines Strangdurchbruches oder sonstiger Betriebsstörungen Beschädigungen der Einrichtungen zur Erzeugung des elektromagnetischen Wanderfeldes vermieden werden können, und im Störungsfall ein rascher Ausbau dieser Einrichtungen unabhängig von weiteren Montagearbeiten an der Strangführung selbst möglich ist.The invention aims to avoid these disadvantages and difficulties and has as its object to provide a continuous casting installation of the type described above, in which damage to the devices for generating the electromagnetic traveling field can be avoided in the event of a strand breakdown or other operational disruptions, and a quicker in the event of a fault Expansion of these facilities is possible regardless of further assembly work on the strand guide itself.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Rührspule zwischen der an die Strangführung angestellten Betriebsstellung und einer außerhalb der Strangführung sich unterhalb eines die Strangführung stützenden seitlichen Trägers befindlichen Rückzugsstellung entweder mittels eines auf Schienen geführten Verschiebewagens mittels eines Steiltriebes verschiebbar oder um eine Schwenkachse verschwenkbar ist.This object is achieved in that the stirring coil between the operating position on the strand guide and an outside of the strand guide below a strand support supporting the strand guide is in a retracted position either by means of a sliding carriage guided on rails by means of a steep drive or pivotable about a pivot axis.
Die Praxis im Gießbetrieb hat gezeigt, daß Strangdurchbrüche in weitaus den meisten Fällen während des Anfahrens erfolgen. Die erfindungsgemäße Konstruktion bietet somit den Vorteil, das Risiko der Beschädigung beim Stranganfahren dadurch zu beseitigen, daß sich die Rührspule während des Anfahrens in der Rückzugstellung befindet. Erst wenn der Warmstrang das untere Ende der Rührspule passiert hat, wird die Rührspule an die Strangführung herangefahren und eingeschaltet.Practice in the foundry has shown that strand breaks occur in most cases during start-up. The construction according to the invention thus offers the advantage of eliminating the risk of damage when starting the train by virtue of the fact that the stirring coil is in the retracted position during startup. Only when the warm strand has passed the lower end of the stirring coil is the stirring coil moved up to the strand guide and switched on.
Darüber hinaus kann aber die Rührspule auch bei einem während des Gießbetriebes auftretenden Strangdurchbruch rasch aus der gefährdeten Position zurückgezogen werden. Weiter ist es auch möglich, die Rührspule beim Ausbau des Strangführungsbogens zurückzuziehen, so daß ein Ausbau unbehindert erfolgen kann.In addition, however, the stirring coil can also be quickly withdrawn from the endangered position if a strand break occurs during the casting operation. Furthermore, it is also possible to pull the stirring coil back when removing the strand guide so that removal can take place without hindrance.
Aus der DE-B-1 920 757 ist es bekannt, zum Zweck des Ein- und Ausbaus von Teilen der Strangführung diese Teile aus der Einbaulage heraus in eine Lage außerhalb des Strangführungsgerüstes zu verfahren. In dieser Lage außerhalb des Strangführungsgerüstes ist der aus- bzw. einzubauende Teil mittels eines Kranes manipulierbar. Wie im Fall von Betriebsstörungen, insbesondere im Fall eines Strangdurchbruches, vorzugehen ist, ist aus der DE-B-1 920 757 nicht zu entnehmen; insbesondere können Beschädigungen der ein- und auszubauenden Teile der Strangführung bei einer Anlage gemäß der DE-B-1 920 757 nicht verhindert werden.From DE-B-1 920 757 it is known, for the purpose of installing and removing parts of the strand guide, to move these parts out of the installed position into a position outside the strand guide frame. In this position outside the strand guide frame, the part to be removed or installed can be manipulated by means of a crane. DE-B-1 920 757 does not show how to proceed in the event of operational disruptions, particularly in the event of a strand breakdown; In particular, damage to the parts of the strand guide that are to be installed and removed cannot be prevented in a system according to DE-B-1 920 757.
Eine vorteilhafte Ausführungsform ist dadurch gekennzeichnet, daß die Schwenkachse in horizontaler Anordnung an dem Strangführungsgerüst befestigt ist.An advantageous embodiment is characterized in that the pivot axis is attached to the strand guide frame in a horizontal arrangement.
Zweckmäßig ist dabei der Schwenkbereich durch Anschläge der Rührspule in der Betriebsstellung begrenzt.The swivel range is expediently limited by stops of the stirring coil in the operating position.
Vorteilhaft dient zum Schwenken der Rührspule eine Seiltrommel, welche an der Rührspule befestigt ist und über ein Seil und eine am Strangführungsgerüst befestigte Umlenkrolle mit einer Aufhängevorrichtung an der Rührspule selbst verbunden ist.A cable drum, which is fastened to the stirring coil and is connected to a suspension device on the stirring coil itself via a cable and a deflection roller attached to the strand guide frame, advantageously serves for pivoting the stirring coil.
Weitere Einzelheiten der Erfinduno werden anhand von zwei bevorzugten Ausführungsformen in den Zeichnungen näher erläutert. Hierin zeigt
- Fig. 1 eine Seitenansicht der erfindungsgemäßen Stranggießanlage,
- Fig. 2 eine Ansicht gemäß Pfeil 11 in Fig. 1 und
- Fig.3 einen Schnitt nach der Linie 111-111 der Fig. 2 in vergrößerter Darstellung; in
- Fig. 4 ist eine weitere Ausführungsform der Erfindung in Seitenansicht dargestellt.
- 1 is a side view of the continuous caster according to the invention,
- Fig. 2 is a view according to
arrow 11 in Fig. 1 and - 3 shows a section along the line 111-111 of Figure 2 in an enlarged view. in
- 4 shows a further embodiment of the invention in side view.
Gemäß Fig. 1 ist anschließend an die 1 bezeichnete Kokille eine den Strang an Breitseiten mittels Rollen 2 stützende Strangführung 3 angeordnet, welche d" ch einen Schnellverschluß 4 an einem semich der Stranggießanlage befindlichen Träger 5 befestigt ist. Unterhalb dieser Befestigungsvorrichtung befindet sich im Bereich einer Strangführungszone, vorzugsweise der Biegezone 6, eine lösbar an einem Verschiebewagen 7 montierte Einrichtung zur Erzeugung eines elektromagnetischen Wanderfeldes, eine sogenannte »Rührspule« 8. Mit Hilfe des Verschiebewagens 7 ist die Rührspule 8 aus der in Fig. 1 voll ausgezogenen Betriebsstellung, welche sich in unmittelbarer Nähe der Strangführungsrollen 2 befindet, in eine durch die strichpunktierte Linie 9 in Fig. 1 angedeutete, durch den Träger 5 geschützte Rückzugsstellung verfahrbar. Dazu wird der Verschiebewagen auf Rädern 10 entlang der Führungsschienen 11, welche durch Stützen 12 vom Träger 5 und durch weitere Stützen 13 vom Gerüst 14 getragen werden, mittels eines Stelltriebes 15 wie eines Druckmittelzylinders bewegt. Dieser Stelltrieb 15 ist, wie aus Fig. ersichtlich, zwischen den Schienen 11 angeordnet und sowohl am quer zur Schienenrichtung montierten Träger 16 als auch am Verschiebewagen 7 schwenkbar gelagert.1 is subsequent to the 1 designated a mold on the strand The broadside is arranged by means of
In Fig. 1 ist weiter in strichpunktierter Darstellung die Aufgabeposition 17 der Rührspule 8 gezeigt. Dazu wird sowohl der Träger 16 als auch der Stelltrieb 15 ausgebaut und der Verschiebewagen 7 auf der Schiene 11 bis zum hinteren Anschlag 18 verfahren. Durch einen (nicht dargestellten) Kran wird die Rührspule in eine Stellung zwischen die Schienen gesenkt und mittels Schrauben am Verschiebewagen befestigt. Mit einer von der Strangführungsseite eingeführten Zugvorrichtung wird die Rührspule in Verbindung mit dem Verschiebewagen 7 in die Betriebsposition gezogen und der Stelltrieb 15 mit dem Träger 16 an der Schiene 11 montiert.In Fig. 1, the
Der in Fig. 3 dargestellte Schnitt zeigt in vergrößerter Darstellung eine vorteilhaft als Hohlkastenprofil ausgebildete Führungsschiene 11, auf welcher eine Verschleißleiste 19 angeschraubt ist, worauf die Räder 10 des Verschiebewagens 7 abrollen.The section shown in FIG. 3 shows an enlarged representation of a
Eine weitere bevorzugte Ausführung der Erfindung ist in Fig. 4 dargestellt, wobei gleiche Teile mit den gleichen Bezugsziffern versehen sind. Bei dieser Konstruktion ist die Rührspule 8 von einer voll ausgezeichneten, an die Strangführung 3 angestellten Betriebsstellung in eine strichpunktiert gezeichnete Rückzugsstellung um eine am Gerüst befestigte horizontale Achse 20 schwenkbar. Dabei ist die Rührspule 8 lösbar an einer Traverse 21 befestigt. Seitlich an der Rührspule ist eine Seiltrommel 22 angeordnet, welche über ein Seil 23 und eine an einem seitlichen Träger 24 des Strangführungsgerüstes befestigte Umlenkrolle 25 mit einer Aufhängevorrichtung 26 an der Rührspule 8 verbunden ist. Durch Drehen der Seiltrommel 22, wodurch die Seillänge verändert wird, kann nun die Rührspule 8 aus der Betriebsstellung durch das Eigengewicht in die Rückzugstellung abgesenkt werden.A further preferred embodiment of the invention is shown in FIG. 4, the same parts being provided with the same reference numbers. In this construction, the
Vorteilhaft ist der Schwenkbereich durch Anschläge begrenzt, wobei in Betriebsstellung der Anschlag 27 der Rührspule 8 mit dem Anschlag 28 des Gießbogens zusammenwirkt und in Rückzugstellung die gesamte Traverse 21 auf den Trägern 29 des Gießgerüstes aufliegt.The pivoting range is advantageously limited by stops, the
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT527579A AT362088B (en) | 1979-08-01 | 1979-08-01 | STIRRING DEVICE ON A CONTINUOUS CASTING SYSTEM |
AT5275/79 | 1979-08-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0023897A1 EP0023897A1 (en) | 1981-02-11 |
EP0023897B1 true EP0023897B1 (en) | 1983-08-17 |
Family
ID=3573957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80890078A Expired EP0023897B1 (en) | 1979-08-01 | 1980-07-16 | Installation in a continuous casting plant |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0023897B1 (en) |
JP (1) | JPS5623354A (en) |
AT (1) | AT362088B (en) |
BR (1) | BR8004817A (en) |
CA (1) | CA1141936A (en) |
DE (1) | DE3064574D1 (en) |
ES (1) | ES8107067A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU85846A1 (en) * | 1985-04-10 | 1986-11-05 | Metz Paul | DEVICE FOR BREWING MOLTEN METAL IN A CONTINUOUS CASTING SYSTEM |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1920757B2 (en) * | 1969-04-24 | 1973-10-04 | Demag Ag, 4100 Duisburg | Device for dismounting and installing the strand guide segments of an arc continuous caster |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1962341B2 (en) * | 1969-12-12 | 1971-06-24 | Aeg Elotherm Gmbh | ARRANGEMENT OF A MULTI-PHASE ELECTROMAGNETIC WINDING ON THE STRAND GUIDE FRAMEWORK OF A CONTINUOUS CASTING PLANT |
JPS5236492B2 (en) * | 1972-12-20 | 1977-09-16 | ||
DE2828160B2 (en) * | 1978-06-23 | 1981-04-30 | Aeg-Elotherm Gmbh, 5630 Remscheid | Electromagnetic stirring device for continuous casting plants |
DE7819247U1 (en) * | 1978-06-23 | 1979-10-31 | Mannesmann Ag, 4000 Duesseldorf | DEVICE FOR ADJUSTING AND ADJUSTING ELECTROMAGNETIC STIRRING DEVICES IN CONTINUOUS CASTING PLANTS |
-
1979
- 1979-08-01 AT AT527579A patent/AT362088B/en not_active IP Right Cessation
-
1980
- 1980-07-04 CA CA000355541A patent/CA1141936A/en not_active Expired
- 1980-07-16 DE DE8080890078T patent/DE3064574D1/en not_active Expired
- 1980-07-16 EP EP80890078A patent/EP0023897B1/en not_active Expired
- 1980-07-30 ES ES493861A patent/ES8107067A1/en not_active Expired
- 1980-07-30 JP JP10379280A patent/JPS5623354A/en active Pending
- 1980-07-31 BR BR8004817A patent/BR8004817A/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1920757B2 (en) * | 1969-04-24 | 1973-10-04 | Demag Ag, 4100 Duisburg | Device for dismounting and installing the strand guide segments of an arc continuous caster |
Also Published As
Publication number | Publication date |
---|---|
CA1141936A (en) | 1983-03-01 |
ES493861A0 (en) | 1981-10-01 |
AT362088B (en) | 1981-04-27 |
JPS5623354A (en) | 1981-03-05 |
ES8107067A1 (en) | 1981-10-01 |
ATA527579A (en) | 1980-09-15 |
BR8004817A (en) | 1981-02-10 |
DE3064574D1 (en) | 1983-09-22 |
EP0023897A1 (en) | 1981-02-11 |
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