EP0734801B1 - Vorrichtung zum Regeln eines Metall-zuflusses mittels einem Stopfen - Google Patents
Vorrichtung zum Regeln eines Metall-zuflusses mittels einem Stopfen Download PDFInfo
- Publication number
- EP0734801B1 EP0734801B1 EP96104202A EP96104202A EP0734801B1 EP 0734801 B1 EP0734801 B1 EP 0734801B1 EP 96104202 A EP96104202 A EP 96104202A EP 96104202 A EP96104202 A EP 96104202A EP 0734801 B1 EP0734801 B1 EP 0734801B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stopper
- drive
- lifting rod
- guide
- casting
- 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
Links
- 239000002184 metal Substances 0.000 title claims description 8
- 229910052751 metal Inorganic materials 0.000 title claims description 8
- 238000005266 casting Methods 0.000 claims description 18
- 230000033001 locomotion Effects 0.000 claims description 15
- 238000009749 continuous casting Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 4
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000007257 malfunction Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005406 washing Methods 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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/161—Controlling or regulating processes or operations for automatic starting the casting process
-
- 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
-
- 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
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/20—Stopper-rod operating equipment
Definitions
- the invention relates to a device for regulating a metal inflow from a Pouring vessel into a continuous casting mold according to the characteristics of the generic term of claim 1.
- stopper control devices When casting metals, especially steel, stopper control devices are used has long been known for pans and continuous vessels.
- DE - 1 458 076 A An example of a control device according to the preamble of claim 1 is disclosed in DE - 1 458 076 A.
- the position of a stopper a ladle can be changed controlled by an electromechanical Drive, the control of which is operated manually.
- DE - 1 180 096 B proposes a compact design for the actuating device for a stopper of a ladle with manually operated, electromechanical Plug drive before.
- the actuator includes a plug guide rod, which is formed by the drive itself.
- the invention has for its object to provide a stopper control device which overcomes the aforementioned disadvantages and in particular leaves the classic stopper actuation concept, which provides for manual intervention on a stopper regulating lever at the start or in emergency situations.
- the plug control should also have a significantly higher regulation accuracy and regulation speed in order to further improve the strand quality. Also, for all malfunctions that occur in practice, such as breakthroughs, plug wear and nozzle washing, Al 2 O 3 deposits, etc., predetermined sequence programs should be able to be used automatically or via remote control.
- the new plug actuation concept is intended to save personnel costs during commissioning and service, but also during the casting operation itself.
- each stopper movement is a computer or remote-controlled electric drive. Impending malfunctions are recognized in good time by recording appropriate parameters and corrected accordingly via predetermined programs. Through early detection strand quality, in particular the Strand surface to be improved.
- the omission of all hydraulic drive and Control elements simplify both the commissioning of the system and the Maintenance of such stopper control devices. Foundry staff can also continue saved and security increased. Waiving the equipment with An articulated lever also closes all caused by the articulated lever Moments of inertia.
- the plugs are usually opposite the pouring nozzle for the outflow control can be raised and lowered. But plugs are also known, which are caused by a rotary movement control the flow control. According to an embodiment, the Guide device for a lifting and lowering plug from a lifting rod and a tour.
- the device for regulating the metal flow can be attached to any pouring vessel programmed or remotely controlled casting operations must be performed.
- the device can be used to save personnel on a continuous caster
- particularly effective for intermediate vessels can be used for multiple line systems.
- Such intermediate vessels have up to eight pouring nozzles, each with a stopper regulation.
- the module box it is possible to use a cooling system known in the prior art to provide the module box.
- the air pressure can be built up via an air circulation system, the air the module box, the lifting rod and a plug support arm as the cooling medium flows through.
- An additional protection against heating of the module box results when mounting between the wall of the casting vessel and the module box an open air gap is arranged.
- Accurate flow control requires high stroke accuracy, high Speed of movement of the lifting rod and a minimum of moving parts between the lifting rod and the servo motor.
- the drive axis of the Motors and the lifting rod together with their guide parallel to each other in the module box to arrange and the rotary motion of the motor directly on a ball screw and from this in turn directly to the lifting rod.
- the Control accuracy can be further increased if the vertical guidance of the lifting rod consists of a ball bearing longitudinal guide and its length 50 - 80% the intermediate vessel height (bottom lid cover).
- a handwheel can be coupled to the spindle of the ball screw drive.
- accumulators, spring assemblies etc. which are pressurized in the prior art. known. Such devices cause additional investment and maintenance costs and are poorly suited for a module solution.
- a signal generator in the power supply for rapid detection of a power failure and in the electrical Drive supply capacitors to arrange their capacity for a program-controlled Emergency closing movement of the plug is sufficient in the event of a power failure.
- the pouring nozzle with an emergency slide Assigned lock stone.
- a casting vessel 1 and 2 is a casting vessel as an intermediate vessel 2 within one Steel continuous casting system shown.
- a continuous casting mold 3 provides a casting mold
- a pouring nozzle 4 interacts with a liftable and lowerable stopper 5 and regulates the flow of steel from the tundish 2 into the continuous casting mold 3.
- the inflow of steel into the mold 3 is determined according to a predetermined program, e.g. one Angie program, and / or controlled by a bath level measuring device 7.
- the refractory stopper 5 surrounds the stopper rod 8, which has an arm 9 is connected to a lifting rod 10.
- the lifting rod 10 is in a vertical guide 12 arranged, which in this example consists of a ball bearing longitudinal guide.
- a computer-controlled electromechanical drive in the form of a servo motor 13 is together with the lifting rod 10 and its vertical guide 12 in one Module box 15 arranged.
- the module box 15 is on the intermediate vessel 2 Clamping elements 16 fastened interchangeably. To ensure easy replacement, 15 suspension devices 17 are provided on the module box.
- the Clamping elements 16 are designed as quick-release and centering elements. Between the wall 19 of the intermediate vessel 2 and the module box 15 is an open one Air gap 20 arranged.
- the module box 15 is closed in a dust-tight manner by a cover 21 and via a Compressed air connection 22, an air overpressure can be built up.
- the air pressure is part of an air circulation system 23, which is represented by an arrow.
- the air circulation system 23 in the module box serves as a cooling medium for the engine 13, a ball screw drive 27, 28, the lifting rod 10 and the plug support arm 9.
- a drive axis 25 of the motor 13 is via a flexible, angularly rigid coupling 26 connected to the ball screw 27.
- the spindle 27 forms together with a nut 28 a ball screw, the nut 28 and the lifting rod 10 are rigidly connected to one another via a bridge 29. Over the bridge 29 the Transfer the nut 28 directly to the lifting rod 10.
- the drive axle 25 with the spindle 27 are parallel and at a short distance from the lifting rod 10 in the module box 15 arranged.
- a handwheel 30 is arranged, which with the Spindle 27 can be coupled and allows a height adjustment of the lifting rod 10 if the electrical connection cable to the motor is unplugged.
- the module box 15 is again electrically connected to the control cabinet 34 and the handwheel 30 from the spindle uncoupled.
- a signal generator 33 is connected in the power supply 32 for the motor 13, which detects a power failure and reports a computer in the control cabinet 34. Furthermore, capacitors are arranged in the electrical drive supply, their capacity for a program-controlled emergency closing movement of the stopper sufficient in the event of a power failure.
- a stopper control device is also subject to interference from the refractory side such as breaking off refractory parts on the stopper, breaking or wash out the pouring nozzle etc.
- the refractory side such as breaking off refractory parts on the stopper, breaking or wash out the pouring nozzle etc.
- To prevent an emergency situation regardless of the stopper control is a with a piston cylinder unit controlled emergency slide 36 on the intermediate vessel bottom appropriate. With a locking block of the emergency slide 36, the outflow nozzle can 4 closed and, if necessary, a pouring tube can be separated at the same time.
- the medium for actuating the emergency slide is supplied by an accumulator.
- Intermediate vessels for continuous casting plants are provided with up to eight stoppers, whereby each stopper has its own module box and its own control system is. If the intermediate vessel from the preheating position to the pouring position over the Chill molds or placed in a filling position close to the pouring position, so is before Start of pouring of the plug drive motor by means of electrical plug connections 37 connected to the control cabinet 34. After this connection the stopper movement From the start of casting only controlled by electrical signals.
- All transmission means known in the prior art such as wire, light guide, radio, infrared etc. are used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Casting Devices For Molds (AREA)
- Continuous Casting (AREA)
Description
- Fig. 1
- einen Vertikalschnitt durch ein Zwischengefäss mit einer Stopfenregeleinrichtung und
- Fig. 2
- einen etwas vergrösserten Schnitt nach der Linie II-II von Fig. 1.
Claims (14)
- Vorrichtung zum Regeln eines Metallzuflusses aus einem Giessgefäss (2) in eine Stranggiesskokille (3), mit einem Stopfen (5), der mit einer Ausgussdüse (4) zusammenwirkt, mit einem am Giessgefäss (2) mit Spannelementen (16) auswechselbar befestigten Modulkasten (15), in dem eine Führungseinrichtung (10, 12) und ein elektromechanischer Antrieb (13) für den Stopfen (5) angeordnet sind, und mit einer Steuerung (34), die mit dem Antrieb (13) mittels elektrischer Steckverbindungen (37) verbindbar ist, dadurch gekennzeichnet, dass eine Rechnersteuerung (34) für den Antrieb (13) zur Steuerung der Stopfenbewegung nach einem vorbestimmten Programm und/oder mittels einer Badspiegelmesseinrichtung (7) und eine Stromversorgung (32) für den Antrieb (13) mit einer Vorrichtung (33, 34) zur Steuerung einer Notschliessbewegung des Stopfens (5) bei Stromausfall vorgesehen ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Modulkasten (15) staubdicht verschließar und mit einem Luftüberdruck beaufachlagbar ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Führungseinrichtung für einen heb- und senkbaren Stopfen aus einer Hubstange (10) und einer Führung (12) besteht.
- Vorrichtung nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass das Giessgefäss aus einem Zwischengefäss (2) für eine Mehrstranganlage besteht und mit 2 - 8 Modulkästen (15) ausgerüstet ist.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Luftüberdruck über ein Luftzirkulationssystem (23) aufgebaut ist und die Luft den Modulkasten (15), die Hubstange (10) und einen Stopfentragarm (9) als Kühlmedium durchfliesst.
- Vorrichtung nach einem der Ansprüche 2 - 5, dadurch gekennzeichnet, dass zwischen der Wand (19) des Giessgefässes (2) und dem Modulkasten (15) ein offener Luftspalt (20) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 2 - 6, dadurch gekennzeichnet, dass am Modulkasten (15) eine Einrichtung zum Aufhängen (17) am Giessgefäss (2) und Schnellspannelemente (16) für eine starre Befestigung vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 2 - 7, dadurch gekennzeichnet, dass die Antriebsachse (25) des Antriebs (13) und die Hubstange (10) zusammen mit ihrer Führung (12) parallel zueinander im Modulkasten (15) angeordnet sind und der Antrieb (13) die Drehbewegung direkt auf einen Kugelgewindetrieb (27, 28) und von diesem eine Hubbewegung direkt auf die Hubstange (10) überträgt.
- Vorrichtung nach einem der Ansprüche 1 - 8, dadurch gekennzeichnet, dass ein Handrad (30) an eine Gewindespindel (27) des Kugelgewindetriebes anund abkuppelbar ist.
- Vorrichtung nach einem der Ansprüche 1 - 9, dadurch gekennzeichnet, dass die Vorrichtung zur Steuerung einer Notschliessbewegung des Stopfens (5) einen Signalgeber (33) für eine schnelle Detektion eines Stromausfalles umfasst.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Vorrichtung zur Steuerung einer Notschliessbewegung des Stopfens (5) Kondensatoren umfasst, deren Kapazität für eine programmgesteuerte Notschliessbewegung des Stopfens (5) bei Stromausfall ausreicht.
- Vorrichtung nach einem der Ansprüche 1 - 11, dadurch gekennzeichnet, dass die Vertikalführung (12) der Hubstange (10) aus einer kugelgelagerten Längsführung besteht und ihre Länge L = 50 - 80 %, vorzugsweise 70 - 80 %, der Zwischengefässhöhe (39) (Boden - Deckelauflage) beträgt.
- Vorrichtung nach einem der Ansprüche 1 - 12, dadurch gekennzeichnet, dass der Ausgussdüse (4) ein Notschieber (36) mit einem Verschlussstein zugeordnet ist.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass der Notschieber mit einer Kolbenzylindereinheit und mit einem Akkumulator für das Betätigungsmedium versehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00870/95A CH689728A5 (de) | 1995-03-28 | 1995-03-28 | Vorrichtung zum Regeln eines Zuflusses einer Metallschmelze mittels eines Stopfens. |
CH87095 | 1995-03-28 | ||
CH870/95 | 1995-03-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0734801A1 EP0734801A1 (de) | 1996-10-02 |
EP0734801B1 true EP0734801B1 (de) | 1999-07-28 |
EP0734801B2 EP0734801B2 (de) | 2003-02-05 |
Family
ID=4197097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96104202A Expired - Lifetime EP0734801B2 (de) | 1995-03-28 | 1996-03-16 | Vorrichtung zum Regeln eines Metall-zuflusses mittels einem Stopfen |
Country Status (6)
Country | Link |
---|---|
US (1) | US5674426A (de) |
EP (1) | EP0734801B2 (de) |
CA (1) | CA2172335C (de) |
CH (1) | CH689728A5 (de) |
DE (1) | DE59602511D1 (de) |
ES (1) | ES2137580T5 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6446704B1 (en) * | 1997-06-27 | 2002-09-10 | Richard J. Collins | Continuous casting mold plug activation and bleedout detection system |
DE19843033B4 (de) * | 1998-09-19 | 2017-11-09 | Sms Group Gmbh | Durchbrucherkennungsverfahren für eine Stranggießkokille |
FR2848131B1 (fr) * | 2002-12-04 | 2006-01-06 | Realisations Tech Sert Soc Et | Ensemble de commande d'un obturateur appartenant a une installation de coulee continue, et installation de coulee continue correspondante |
US7296613B2 (en) | 2003-06-13 | 2007-11-20 | Wagstaff, Inc. | Mold table sensing and automation system |
ITMI20042301A1 (it) * | 2004-11-30 | 2005-02-28 | Danieli Off Mecc | Dispositivo di comando di un'asta-tampone |
DE102005024924B8 (de) * | 2005-05-23 | 2007-10-25 | Strikowestofen Gmbh | Schmelz- oder Warmhalteofen |
US20070120707A1 (en) * | 2005-11-29 | 2007-05-31 | Rv Insite, Inc. | Method for positioning recreational vehicles and portable position sensor and alert system for recreational vehicles and other vehicles |
US8210402B2 (en) * | 2009-02-09 | 2012-07-03 | Ajf, Inc. | Slag control shape device with L-shape loading bracket |
US8580186B2 (en) * | 2010-04-19 | 2013-11-12 | Novelis Inc. | Flow control apparatus for molten metal |
EP2574414A1 (de) * | 2011-09-30 | 2013-04-03 | Siemens VAI Metals Technologies GmbH | Elektromechanischer Stopfenantrieb |
AT518476B1 (de) * | 2016-04-12 | 2020-02-15 | Primetals Technologies Austria GmbH | Verfahren zum Starten und Stoppen einer mehrsträngigen Stranggießmaschine, Gemeinsamer Stopfenantrieb und Mehrsträngige Stranggießmaschine |
EP3782748A1 (de) | 2019-08-20 | 2021-02-24 | Refractory Intellectual Property GmbH & Co. KG | Antriebsvorrichtung für einen stopfenverschluss an einem metallurgischen gefäss |
AT17334U1 (de) * | 2020-08-26 | 2021-12-15 | Sheffield Hi Tech Refractories Germany Gmbh | Vorrichtung zum Verschließen eines Gießrohres eines metallurgischen Gefäßes |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1139241B (de) * | 1960-08-23 | 1962-11-08 | Juenkerather Maschbau Gmbh | Betaetigungsvorrichtung fuer den Stopfen einer Giesspfanne |
DE1180096B (de) * | 1962-03-31 | 1964-10-22 | Juenkerather Maschbau Gmbh | Betaetigungsvorrichtung fuer den Stopfen einer Giesspfanne |
DE1458076A1 (de) * | 1963-03-25 | 1968-11-21 | Korthaus Helmut | Einrichtung zur elektromotorischen Steuerung des Verschlussstopfens einer Giesspfanne |
DE8510920U1 (de) * | 1985-04-13 | 1986-08-07 | Ruhrgas Ag, 4300 Essen | Notschieber für Verteilerrinnen von Stranggießanlagen |
EP0296443A3 (de) * | 1987-06-22 | 1989-11-08 | Zimmermann & Jansen GmbH | Verfahren und Vorrichtung zum automatischen Füllen einer Stranggiesskokille |
JPH0299255A (ja) † | 1988-05-16 | 1990-04-11 | Nippon Steel Corp | 薄肉鋼板用の連続鋳造機の湯面制御装置 |
CH682376A5 (de) * | 1990-02-28 | 1993-09-15 | Stopinc Ag | Verfahren zum automatischen Angiessen von einer Stranggiessanlage. |
JPH04270049A (ja) * | 1991-02-25 | 1992-09-25 | Sumitomo Metal Ind Ltd | 連続鋳造機のストッパ装置及び湯面レべル制御装置 |
US5312090A (en) * | 1992-12-14 | 1994-05-17 | Cmi International | Apparatus and method for controlling a stopper rod of a bottom pouring vessel |
-
1995
- 1995-03-28 CH CH00870/95A patent/CH689728A5/de not_active IP Right Cessation
-
1996
- 1996-03-16 EP EP96104202A patent/EP0734801B2/de not_active Expired - Lifetime
- 1996-03-16 ES ES96104202T patent/ES2137580T5/es not_active Expired - Lifetime
- 1996-03-16 DE DE59602511T patent/DE59602511D1/de not_active Expired - Lifetime
- 1996-03-20 US US08/618,964 patent/US5674426A/en not_active Expired - Lifetime
- 1996-03-21 CA CA002172335A patent/CA2172335C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2172335C (en) | 2001-06-12 |
EP0734801A1 (de) | 1996-10-02 |
CH689728A5 (de) | 1999-09-30 |
ES2137580T3 (es) | 1999-12-16 |
DE59602511D1 (de) | 1999-09-02 |
ES2137580T5 (es) | 2003-08-01 |
US5674426A (en) | 1997-10-07 |
CA2172335A1 (en) | 1996-09-29 |
EP0734801B2 (de) | 2003-02-05 |
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