DE1953094A1 - Safety device for continuous casting plants and methods for actuating the same - Google Patents

Safety device for continuous casting plants and methods for actuating the same

Info

Publication number
DE1953094A1
DE1953094A1 DE19691953094 DE1953094A DE1953094A1 DE 1953094 A1 DE1953094 A1 DE 1953094A1 DE 19691953094 DE19691953094 DE 19691953094 DE 1953094 A DE1953094 A DE 1953094A DE 1953094 A1 DE1953094 A1 DE 1953094A1
Authority
DE
Germany
Prior art keywords
strand
locking device
drive rollers
continuous casting
pressure medium
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.)
Pending
Application number
DE19691953094
Other languages
German (de)
Inventor
Hans-Dieter Schulz
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.)
Schloemann AG
Original Assignee
Schloemann 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 Schloemann AG filed Critical Schloemann AG
Priority to DE19691953094 priority Critical patent/DE1953094A1/en
Priority to US81886A priority patent/US3707181A/en
Priority to CA096217A priority patent/CA919887A/en
Publication of DE1953094A1 publication Critical patent/DE1953094A1/en
Pending legal-status Critical Current

Links

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
    • B22D11/14—Plants for continuous casting
    • B22D11/148—Safety arrangements
    • 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
    • B22D11/08—Accessories for starting the casting procedure
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Description

Belegexe-plarDocument exe-plar

Darf nicht geäjxfert werden May not be manufactured

~ -Τ" J ■ - 2270-~ -Τ " J ■ - 2270-

Sicherheitsvorrichtung für Stranggießanlagen und Verfahren zur Betätigung derselbenSafety device for continuous casting plants and method for operating the same

Die Erfindung bezieht sich auf eine Sicherheitsvorrichtung für Stranggießanlagen mit bogenförmiger Strangführung und flexiblem Anfahrstrang. Bei den bekannten Stranggießanlagen wird der Anfahrstrang zu Beginn des Gießvorganges von durch Druckmittel-Zylinder anstellbaren Treibrollen in die Strangführung soweit eingefahren, daß der Anfahrkopf die Kokille verschließt. In dieser Lage müssen die Treibrollen den schweren Anfahrstrang in der Führung festhalten. Bei einem Zusammenbruch des Druckmittelsystems werden die Treibrollen nicht mehr ausreichend stark auf den Anfahrstrang gepreßt. Der Strang bewegt sich mit steigender GeGeschwindigkeit abwärts durch die Strangführung zurück. Dadurch sind sowohl Menschenleben als auch teuere Anlageteile, wie Scheren, Sägen oder Brennschneideinrichtungen bedroht.The invention relates to a safety device for continuous casting plants with an arcuate strand guide and a flexible starting strand. In the known continuous casting machines of the dummy bar at the beginning of the casting process is so far from retracted by pressure-medium cylinder engagable drive rollers in the strand guide, that the dummy bar head seals the mold. In this position, the drive rollers must hold the heavy starting line in the guide. In the event of a breakdown of the pressure medium system, the drive rollers are no longer pressed sufficiently hard on the starting line. The strand moves back down through the strand guide with increasing speed. This threatens both human life and expensive plant components such as scissors, saws or flame cutting equipment.

Mit der Erfindung soll das unkontrollierte Zurückschießen des Anfahrstranges bei einem Zusammenbruch des Druckmittelsystems vermieden werden.With the invention, the uncontrolled shooting back of the starting line is intended can be avoided in the event of a breakdown of the pressure medium system.

Nach der Erfindung wird dies durch eine im Verfahrweg des Anfahrstranges angeordnete Arretiervorrichtung erreicht, welche vorteilhaft als Klemmvorrichtung ausgebildet sein kann.According to the invention, this is achieved by means of one in the travel path of the starting line Arranged locking device achieved, which can be advantageously designed as a clamping device.

In weiterer Ausbildung der Erfindung sind an einer am Fundament verankerten Grundplatte senkrechte Säulen angeordnet, auf denen eine obere Platte beweglieh geführt ist, welche durch eine lösbare Haltevorrichtung oberhalb des Kaltstranges fixiert ist, wobei auf den über die bewegliche Platte hinausragenden Enden der Säulen Druckfedern unter Vorspannung aufgenommen sind. Dadurch wird eine von den Treibrollen unabhängige Haltevorrichtung geschaffen. In a further embodiment of the invention, one is on the foundation anchored base plate arranged vertical columns on which an upper plate is movably guided, which by a detachable Holding device is fixed above the cold strand, wherein on the protruding over the movable plate ends of the Column compression springs are added under pretension. This creates a holding device that is independent of the drive rollers.

109818/1046109818/1046

Ein weiterer Vorteil wird nach der Erfindung darin gesehen, daß die Arretiervorrichtung in Abhängigkeit von einem Druckabfall im Anstellsystem der Treibrollen betätigt wird. Dies kann auf einfache Weise dadurch geschehen, daß als Haltevorrichtung Druckmittel-Zylinder vorgesehen sind, welche an das Druckmittelsystem zur Anstellung der Treibrollen angeschlossen sind. Sobald das Druckmittelsystem zusammenbricht, bewegen die Federn die bewegliche Oberplatte in Richtung auf die Grundplatte, wodurch der Anfahrstrang zwischen den Platten festgeklemmt wird.Another advantage is seen according to the invention that the locking device is actuated as a function of a pressure drop in the adjustment system of the drive rollers. This can be done on simply done in that pressure medium cylinders are provided as a holding device, which are connected to the pressure medium system are connected to the employment of the driving rollers. As soon as the pressure medium system collapses, the springs move the movable top plate in the direction of the base plate, causing the Start-up line is clamped between the plates.

Die Arretiervorrichtung ist vorteilhaft hinter dem Treiber ange-™ ordnet. Es sind aber auch andere Positionen innerhalb der Strangführung denkbar.The locking device is advantageously positioned behind the driver arranges. However, other positions within the strand guide are also conceivable.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:An exemplary embodiment of the invention is shown in the drawing. Show it:

Fig. 1 schematisch die Strangführung mit einer dem Treiber nachgeordneten ArretiervorrichtungFig. 1 schematically shows the strand guide with a driver downstream locking device

Fig. 2 eine vergrößerte Darstellung der Arretiervorrichtung in Strangrichtung gesehen.Fig. 2 is an enlarged view of the locking device seen in the strand direction.

\ Eine in Fig. 1 dargestellte Stranggießanlage besteht aus einem Zwischenbehälter 1, einer Durchlaufkokille 2, einer Strangführung 3 und einem Richttreiber 4, welchem zum Unterteilen des Stranges eine Schneideinrichtung 6 nachgeordnet ist. Der Richttreiber 1J ist mit Andrückrollen 7 versehen, welche durch von einer Pumpe 8 beaufschlagte Hydraulikzylinder 9 auf den Strang gepreßt werden. \ A shown in FIG. 1 continuous caster consists of a tundish 1, a direct chill casting mold 2, a strand guide 3 and a straightening driver 4, wherein a cutting device is arranged downstream of 6 for dividing the strand. The straightening driver 1 J is provided with pressure rollers 7 which are pressed onto the strand by hydraulic cylinders 9 acted upon by a pump 8.

Zwischen Richttreiber 4 und Schneideinrichtung 6 ist eine Arretiervorrichtung 10 angeordnet. Die in Fig. 2 vergrößert dargestellte Arretiervorrichtung 10 besteht aus einer zwischen zwei A locking device 10 is arranged between the straightening driver 4 and the cutting device 6. The locking device 10 shown enlarged in Fig. 2 consists of one between two

109818/1046109818/1046

Rollgangsrollen 11 am Fundament verankerten Grundplatte 12, in welcher Säulen 13 mittels Muttern lh verankert sind. Auf den Säulen 13 ist eine obere Platte 15 verschiebbar aufgenommen, wobei zwischen der oberen Platte 15 und auf den Enden der Säulen 13 aufgenommenen Muttern 16 und Begrenzungsscheiben 17 Druckfedern 18 aufgenommen sind. Grundplatte 12 und obere Platte 15 sind durch Hydraulikzylinder 19 verbunden.Roller table rollers 11 anchored to the foundation base plate 12, in which columns 13 are anchored by means of nuts lh. An upper plate 15 is slidably received on the pillars 13, with compression springs 18 being held between the upper plate 15 and the nuts 16 and limiting disks 17 held on the ends of the pillars 13. The base plate 12 and the upper plate 15 are connected by hydraulic cylinders 19.

Die Hydraulikzylinder 19 der Arretiervorrichtung 10 sind an der Kolbenaußenseite an der Pumpe 8 angeschlossen, so daß durch Beaufschlagung die Arretiervorrichtung gegen die Kraft der Federn 18 geöffnet wird. Wenn beim Ausfall der Pumpe 8 die Treibrollen 17 unwirksam werden, drücken die Federn 18 die obere Platte auf den Strang, und halten ihn fest.The hydraulic cylinders 19 of the locking device 10 are connected to the outside of the piston on the pump 8, so that when they are acted upon the locking device is opened against the force of the springs 18. If, when the pump 8 fails, the drive rollers 17 become ineffective, the springs 18 press the top plate onto the strand and hold it in place.

109818/1046109818/1046

Claims (1)

PatentansprücheClaims 1. Sicherheitsvorrichtung für Stranggießanlagen mit bogenförmiger Strangführung und flexiblem Anfahrstrang, welcher zu Beginn des Gießvorganges von durch Druckmittelzylinder anstellbaren Treibrollen in die Strangführung eingefahren wird, gekennzeichnet durch eine im Verfahrweg des Anfahr- . stranges angeordnete Arretiervorrichtung.1. Safety device for continuous casting plants with curved strand guide and flexible starting strand, which to Beginning of the casting process driven into the strand guide by drive rollers that can be adjusted by means of pressure cylinders is characterized by a in the travel path of the approach. strand arranged locking device. 2. Vorrichtung nach Anspruch 1,2. Device according to claim 1, dadurch gekennzeichnet, daß die Arretiervorrichtung als unter Federspannung stehende Klemmvorrichtung ausgebildet ist.characterized in that the locking device is designed as a spring-loaded clamping device. 3. Vorrichtung nach den Ansprüchen 1 und 2,3. Device according to claims 1 and 2, dadurch gekennzeichnet, daß an einer am Fundament verankerten Grundplatte senkrechte Säulen angeordnet sind, auf denen eine obere Platte beweglich geführt ist, welche durch eine lösbare Haltevorrichtung oberhalb des Kaltstranges fixiert ist, wobei auf den über die bewegliche Platte hinausragenden Enden der Säulen Druckfedern unter Vorspannung aufgenommen sind. 'characterized in that vertical columns are arranged on a base plate anchored to the foundation, on which an upper plate is movably guided, which is fixed by a releasable holding device above the cold strand is on the protruding beyond the movable plate Ends of the pillars compression springs are added under tension. ' 4. Verfahren zur Sicherung des Anfahrstranges einer Stranggießanlage mit einer Arretiervorrichtung nach einem der vorhergehenden Ansprüche,4. Procedure for securing the starting line of a continuous caster with a locking device according to one of the preceding claims, dadurch gekennzeichnet, daß die Arretiervorrichtung in Ab-■ hängigkeit von einem Druckabfall im Anstellsystem der Treibrollen betätigt wird.characterized in that the locking device in Ab- ■ dependence on a pressure drop in the adjustment system of the drive rollers is operated. 5. Vorrichtung nach den Ansprüchen 1 bis 3 und zur Durchführung des Verfahrens nach Anspruch 4,5. Device according to claims 1 to 3 and for performing the method according to claim 4, dadurch gekennzeichnet, daß als Haltevorrichtung Druckmittelzylinder vorgesehen sind, welche an das Druckmittelsystem zur Anstellung der Treibrollen angeschlossen sind.characterized in that a pressure medium cylinder is used as the holding device are provided, which are connected to the pressure medium system for setting the drive rollers. 109818/104109818/104 6. Vorrichtung nach einem der Ansprüche 1 bis 3 oder 5* dadurch gekennzeichnet, daß die Arretiervorrichtung im Anschluß an den Treiber angeordnet ist.6. Device according to one of claims 1 to 3 or 5 * characterized in that the locking device is arranged following the driver. 1098.18/10461098.18 / 1046 BAD ORIGINALBATH ORIGINAL LeerseiteBlank page * rZt i* rZt i
DE19691953094 1969-10-22 1969-10-22 Safety device for continuous casting plants and methods for actuating the same Pending DE1953094A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19691953094 DE1953094A1 (en) 1969-10-22 1969-10-22 Safety device for continuous casting plants and methods for actuating the same
US81886A US3707181A (en) 1969-10-22 1970-10-19 Safety system for continuous casting machine
CA096217A CA919887A (en) 1969-10-22 1970-10-21 Safety system for continuous casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691953094 DE1953094A1 (en) 1969-10-22 1969-10-22 Safety device for continuous casting plants and methods for actuating the same

Publications (1)

Publication Number Publication Date
DE1953094A1 true DE1953094A1 (en) 1971-04-29

Family

ID=5748837

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691953094 Pending DE1953094A1 (en) 1969-10-22 1969-10-22 Safety device for continuous casting plants and methods for actuating the same

Country Status (3)

Country Link
US (1) US3707181A (en)
CA (1) CA919887A (en)
DE (1) DE1953094A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009012588A1 (en) 2008-05-16 2009-11-26 Siemens Vai Metals Technologies Gmbh & Co. Securing starter strand in continuous casting plant strand guide, includes use of conically adjusted guiding rollers to block strand transport path and prevent sudden release of strand
WO2011006748A1 (en) 2009-07-17 2011-01-20 Siemens Vai Metals Technologies Gmbh Method for securing a start-up strand in a continuous casting system and continuous casting system having a start-up strand

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2335847B1 (en) * 2009-12-18 2013-04-17 SMS Concast AG Device for starting/casting of a strand casting assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE626696A (en) * 1962-01-12
US3263284A (en) * 1963-12-20 1966-08-02 United States Steel Corp Constant-pressure pinch rolls for continuous casting
US3442322A (en) * 1966-09-09 1969-05-06 Mesta Machine Co Flexible dummy bar for continuous casting machines
US3456767A (en) * 1967-09-26 1969-07-22 Kelsey Hayes Co Hydraulically released,spring set,fail safe disk brake

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009012588A1 (en) 2008-05-16 2009-11-26 Siemens Vai Metals Technologies Gmbh & Co. Securing starter strand in continuous casting plant strand guide, includes use of conically adjusted guiding rollers to block strand transport path and prevent sudden release of strand
DE102009012588B4 (en) * 2008-05-16 2013-10-31 Siemens Vai Metals Technologies Gmbh Method for securing a starter train in a continuous casting plant and continuous casting plant with a starter train
WO2011006748A1 (en) 2009-07-17 2011-01-20 Siemens Vai Metals Technologies Gmbh Method for securing a start-up strand in a continuous casting system and continuous casting system having a start-up strand
RU2527568C2 (en) * 2009-07-17 2014-09-10 Сименс Фаи Металз Текнолоджиз Гмбх Seed securing at continuous casting plant and continuous casting plant with seed

Also Published As

Publication number Publication date
CA919887A (en) 1973-01-30
US3707181A (en) 1972-12-26

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