EP1616644A1 - DIspositif pour le changement de poches à couler dans une installation de coulée continue - Google Patents

DIspositif pour le changement de poches à couler dans une installation de coulée continue Download PDF

Info

Publication number
EP1616644A1
EP1616644A1 EP05014818A EP05014818A EP1616644A1 EP 1616644 A1 EP1616644 A1 EP 1616644A1 EP 05014818 A EP05014818 A EP 05014818A EP 05014818 A EP05014818 A EP 05014818A EP 1616644 A1 EP1616644 A1 EP 1616644A1
Authority
EP
European Patent Office
Prior art keywords
ladle
bearing ring
chair
pans
pan
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.)
Granted
Application number
EP05014818A
Other languages
German (de)
English (en)
Other versions
EP1616644B1 (fr
Inventor
Alwin Geitner
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.)
LECH STAHLWERKE GmbH
Lech-Stahlwerke GmbH
Original Assignee
LECH STAHLWERKE GmbH
Lech-Stahlwerke GmbH
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 LECH STAHLWERKE GmbH, Lech-Stahlwerke GmbH filed Critical LECH STAHLWERKE GmbH
Publication of EP1616644A1 publication Critical patent/EP1616644A1/fr
Application granted granted Critical
Publication of EP1616644B1 publication Critical patent/EP1616644B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B22D11/10—Supplying or treating molten metal
    • 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
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B22D41/13—Ladle turrets

Definitions

  • the invention relates to a device for changing the pans in continuous casting according to the preamble of claim 1.
  • the continuous casting process has long been known in the steel industry.
  • liquid steel is passed through a cooled mold, whereby, as a result of the cooling taking place there, an initial solidification of the steel occurs.
  • the shape is achieved by the cross-sectional shape of the mold.
  • the solidification process has already progressed to such an extent that an intrinsically stable shell is still present over the profile circumference, with the core still liquid.
  • the steel profile is fed via a discharge to a cooling bed.
  • liquid steel is brought to the pouring point in so-called pans.
  • the liquid steel is first poured into a buffer, from where it is passed to the mold. Since it is usually supplied from the intermediate storage of several dies with steel, the cache is also referred to as a distributor.
  • the use of a casting system with two pans is known.
  • the system has a vertical turret with two diametrically opposed support arms. On the support arms hang the two pans, one of which is placed in pouring position on the manifold and the other is in waiting position. After emptying the first ladle is rotated by rotation of the turret by 180 °, the other pan in the casting position, at the same time enters the empty ladle in waiting position. From the waiting position, the empty pan is hung by means of a crane and replaced by a new, which is then in waiting position.
  • a corresponding ladle turret, but with only one ladle is described in DE 31 22 215 A1.
  • the invention has the object to provide a device for changing the pans in the continuous casting, with a pan change in the shortest possible time and with minimal space requirements can be performed.
  • a first advantage of the invention is that the pans can be arranged very close to the axis of rotation and thus also to each other thanks to the invention, since a structurally observed minimum distance, for example due to a central tower, is eliminated.
  • the resulting space-saving pan arrangement allows the use of this system even in cramped conditions, as they occur regularly, for example, in subsequent structural extensions of existing systems.
  • the close arrangement of the pans on the axis of rotation also means that the ladles only cover short distances during their rotation in the course of pan change. In this way, the pan change can be performed faster.
  • the clearance gauge required during the rotational movement of the ladle chair changes only insignificantly, so that there are hardly any disturbances for the rest of the operation in the steel mill. Also, the accident risk for the staff, starting from moving parts in the room, as far as possible reduced.
  • Another advantage of the invention results from the free area below the ladles and the distributor. As a result, the effluent from the distributor slag can be freely fed to the slag bucket.
  • the storage of the ladle chair on the peripheral edge and the load within this storage causes the load transfer into the ground is essentially by means of compressive forces.
  • a tensile stress due to moments, such as occur in revolving towers eliminated. In this way, the support structure can be formed easier and safer.
  • a roller conveyor is used according to a preferred embodiment of the invention, which allows a rotation with the least possible resistance and therefore only requires low driving forces.
  • the rollers are arranged on the ladder chair, while the bearing ring provides the raceway for the rollers.
  • the bearing ring is interrupted over part of its circumferential length. This has the advantage that when lifting a pan from the ladle chair during the pan change the pan does not need to be lifted over the bearing ring, which requires a corresponding free space upwards. This embodiment is thus preferably suitable in confined spaces.
  • the bearing ring itself is preferably formed of a plurality of segments, which initially brings advantages in building the bearing ring. However, this also gives the possibility to subsequently exchange segments, if they become unusable over time due to wear.
  • a connection of the segments with each other can be made for example by flange.
  • the ladle chair advantageously has a plate-like shape with a diameter corresponding to that of the bearing ring.
  • a design of the ladle chair in the form of a support grid with central rib and side ribs is preferred.
  • Fig. 1 the essential functional components of a continuous casting are shown schematically. It can be seen a fixed, based on foundations 1 base 2, which is composed essentially of a support frame 3 and the supports 4.
  • the supports 4 are arranged in a circle and carry with its upper end a bearing ring 5.
  • the bearing ring 5 forms the support for a rotatable about a vertical axis 6 ladle chair 7, which carries the two pans 8 and 9.
  • Fig. 1 shows a state in which the pan 8 in waiting position and the pan 9 is in the casting position.
  • the bottom of the pans 8 and 9 has feet 10 and each a spout 11.
  • a trough-shaped distributor 12 which is perpendicular to the plane of representation and is stationary relative to the supporting frame 3, into which the spout 11 of the pan 9 extends.
  • a spout 13 is seen to remove the slag from the liquid steel.
  • the part of the substructure 2 located below the outlet 13 is designed as a collecting trough and discharge to the dross bucket.
  • a spout 14 is arranged, through which the liquid steel can flow.
  • a mold 15 is held by the support frame 3 such that the spout 14 of the distributor 12 just reaches into the mold 15.
  • the mold 15 has in the present embodiment has a rectangular cross section and is otherwise water cooled.
  • About the spout 14 of the liquid steel enters the mold 15 and there undergoes an initial solidification due to the cooling, whereby a strand 16 is formed with already solidified shell but still liquid core.
  • the strand 16 is passed through lateral roller guides 17 for discharge and further to the cooling bed.
  • the pan changing device suitable for this task is shown in more detail in FIGS. 2 to 9.
  • the basic element used for this purpose is the bearing ring 5, the construction of which is evident above all from FIG. 6.
  • the bearing ring 5 consists of a plurality of circular arc segments 18, which are connected at their ends via flanges 19 to form a ring.
  • the bearing ring 5 is not closed, but has an opening 20 on the circumference. The opening 20 is used to facilitate lifting a pan 8 or 9, since a lifting of the pan 8 or 9 on the bearing ring 5 is not necessary.
  • the Bearing ring 5 can also have a smaller height over part of its circumference, which has the advantage that the mold 12 can be positioned closer to the pan 9 in the pouring position.
  • the bearing ring 5 While the bearing ring 5 is rigidly connected with its underside with the supports 4, the upper side of the bearing ring 5 is formed as a raceway 21. As can be seen in particular from Fig. 9, the raceway 21 is inclined transversely to the direction of outward.
  • a plate-shaped ladle chair 22 is arranged on this.
  • the exact structure of the ladle chair 7 can be seen above all from FIGS. 2 to 5 and in particular from FIG. 7.
  • FIG. 7 In the plan view of the ladle chair 7 (Fig. 2, 3, 7) can be seen whose substantially plate-shaped configuration with edge-side, point-symmetrically arranged to the axis 6 recesses 23, which are intended for receiving the pans 8 and 9.
  • On the periphery of the ladle chair 7 is enclosed by an upside-down U-profile 24.
  • a center rib 25 extending through the center point and connecting the opposing U-profiles 24 stiffens the ladle chair 7 and thereby divides it into two fields. The two fields are amplified by the point-symmetrical arrangement of side ribs 26 which extend from the central rib 25 to the U-profile 24.
  • the recesses 23 laterally bordering side ribs 26 form receptacles for the pans 8 and 9.
  • these side ribs 26 on their upper side by means of hydraulic cylinder 22 actuated lifting jaws 27 for raising and lowering the pans 8 and 9.
  • the lifting jaws 27 have contact surfaces 28 on which rest the pans 8 and 9 and rear abutment surfaces 29, which serve to center the pans 8 and 9 when lifted into the receptacles 23.
  • the rollers 30 are for the most part of the U-profile 24 received (Fig. 9), which has a corresponding number of horizontal axle 31 for this purpose. Only the rolling surface of the rollers 30 projects beyond the lower edge of the U-profile 24 and rests on the raceway 21 of the bearing ring 5.
  • the rolling surface of the rollers 30 in this case has the same transverse inclination as the raceway 21 of the bearing ring 5. In this way, a slip between the raceway 21 and the rolling surface of the rollers 30 is prevented.
  • the drive for performing a rotary movement of the ladle chair 7 relative to the bearing ring 5 is not shown in the drawings.
  • a preferred solution provides to secure a sprocket inside or outside of the bearing ring 5 in the vicinity of the ladle chair 7.
  • On the ladder chair 7, one or more driven gears are provided, the teeth of which mesh with the teeth of the ring gear.
  • the teeth of sprocket and gear are very large dimensions to ensure the reliability of the drive.
  • An alternative drive consists of a plurality of directly driven rollers 30 for transmitting a rotary motion to the ladle chair 7 or a chain or cable drive, which acts directly on the ladle chair 7.
  • a reciprocating rotation of the ladle chair 7 on the bearing ring 5 by 180 ° is preferred. This corresponds to a rotary movement with changing direction of rotation. Likewise, a rotational movement with constant rotational direction by 180 ° would be conceivable.
  • Figs. 2 to 5 and Fig. 8 show a ladle chair 7 with inserted pans 8 and 9.
  • the pans 8 and 9 consist essentially of cylindrical containers for holding the liquid steel and can easily reach a weight of 70 to.
  • the upper edge of the pans 8, 9 has a slag outlet 32.
  • Laterally on the container wall are provided at diametrically opposite points suspension elements 33, the articulated with the wall of the pans 8, 9 are connected.
  • the suspension elements 33 form for an upper suspension points 34 for the crane hook and lower bearing points 35, with which they rest on the Hubbacken 27 of the receptacles 23 of the ladle chair 7.
  • the pan change process is as described below.
  • the full liquid steel pan 8 rests in the receptacle 23 of the ladle chair 7 with lowered lifting jaws 27, which corresponds to the waiting position.
  • the pan 9 located in the pouring position has just completely emptied its contents into the distributor 12, which in turn has now reached the maximum filling height.
  • both pans 8 and 9 are raised by extending the lifting jaws 27, wherein the spout 11 of the pan 9 is pulled out of the distributor 12.
  • the ladle chair 7 is rotated by 180 °, whereby the full pan 8 in pouring position and the empty pan 9 comes into waiting position.
  • the pan 9 is lowered by retracting the lifting jaws 27, so that the spout 11 of the pan 8 is immersed in the manifold 12.
  • the feeding of the distributor 12 with liquid steel from the pan 9 takes place. This process must be completed before the distributor 12 runs empty, since otherwise an interruption of the strand 16 occurs.
  • the waiting in empty position pan 9 is now lifted by means of a crane from the ladle chair 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
EP20050014818 2004-07-17 2005-07-08 DIspositif pour le changement de poches à couler dans une installation de coulée continue Expired - Fee Related EP1616644B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410034704 DE102004034704B3 (de) 2004-07-17 2004-07-17 Vorrichtung zum Wechseln der Pfannen bei Stranggießanlagen

Publications (2)

Publication Number Publication Date
EP1616644A1 true EP1616644A1 (fr) 2006-01-18
EP1616644B1 EP1616644B1 (fr) 2007-10-03

Family

ID=35033337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050014818 Expired - Fee Related EP1616644B1 (fr) 2004-07-17 2005-07-08 DIspositif pour le changement de poches à couler dans une installation de coulée continue

Country Status (3)

Country Link
EP (1) EP1616644B1 (fr)
DE (1) DE102004034704B3 (fr)
ES (1) ES2294600T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105364060A (zh) * 2015-12-08 2016-03-02 广西长城矿山机械设备制造有限公司 一种铸造用浇注装置
CN107214314A (zh) * 2017-05-04 2017-09-29 范国隆 一种铸造用轴承圈取出装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003917B4 (de) 2009-01-02 2014-12-11 Oleksandr Mislavskyy Zweipositionstand für die Gießpfannen bei Stranggießanlagen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608094B1 (de) * 1967-02-06 1972-03-23 Voest Ag Anlage zur vollkontinuierlichen Versorgung einer Stranggiessanlage mit Metallschmelze
DE3122215A1 (de) * 1981-06-04 1983-01-05 PHB Weserhütte AG, 5000 Köln Pfannendrehturm
JPH09314291A (ja) * 1996-05-27 1997-12-09 Nippon Steel Corp 連続鋳造の取鍋ターレット
JPH1085911A (ja) * 1996-09-19 1998-04-07 Nippon Steel Corp 連続鋳造の取鍋ターレット

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2146221C3 (de) * 1971-09-16 1979-09-27 Demag Ag, 4100 Duisburg Gießvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608094B1 (de) * 1967-02-06 1972-03-23 Voest Ag Anlage zur vollkontinuierlichen Versorgung einer Stranggiessanlage mit Metallschmelze
DE3122215A1 (de) * 1981-06-04 1983-01-05 PHB Weserhütte AG, 5000 Köln Pfannendrehturm
JPH09314291A (ja) * 1996-05-27 1997-12-09 Nippon Steel Corp 連続鋳造の取鍋ターレット
JPH1085911A (ja) * 1996-09-19 1998-04-07 Nippon Steel Corp 連続鋳造の取鍋ターレット

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 09 31 July 1998 (1998-07-31) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105364060A (zh) * 2015-12-08 2016-03-02 广西长城矿山机械设备制造有限公司 一种铸造用浇注装置
CN107214314A (zh) * 2017-05-04 2017-09-29 范国隆 一种铸造用轴承圈取出装置
CN107214314B (zh) * 2017-05-04 2019-02-15 安徽海立精密铸造有限公司 一种铸造用轴承圈取出装置

Also Published As

Publication number Publication date
DE102004034704B3 (de) 2006-01-26
EP1616644B1 (fr) 2007-10-03
ES2294600T3 (es) 2008-04-01

Similar Documents

Publication Publication Date Title
EP1862559B1 (fr) Dispositif de levage pour poêles de traitement de l'acier dans des installations
DE1963147C3 (de) Lagerung von Verteilerrinnen an einer Karussellvorrichtung für Gießpfannen bei Stranggießanlagen
EP1616644B1 (fr) DIspositif pour le changement de poches à couler dans une installation de coulée continue
EP0206169B1 (fr) Procédé et installation pour charger et décharger une tourelle tournante porte-poches de coulée dans une installation de coulée continue
EP0566910B1 (fr) Dispositif pour transporter des produits laminés enroulés en anneaux dans la zone de bobinage
DE2430786C2 (de) Drehturm für Stahlgießpfannen
DE2010832A1 (fr)
DE3233742C2 (de) Silo für Schüttgut
CH622194A5 (fr)
DE909142C (de) Verfahren und Anlage zum Stranggiessen
DE2449755A1 (de) Transporthubwagen fuer schwere lasten
DE1542053A1 (de) Drehbarer Behaelter fuer Reaktionsvorgaenge mit Waermeerzeugung
DE3127859C2 (de) Verfahren und Anlage zum Auswechseln von Schmelzflußelektrolysezellen
EP0394776B1 (fr) Installation de coulée continue courbe pour barres d'acier à lingotière ouverte oscillante
DE3940736A1 (de) Hochleistungs-stabstahl/drahtstrasse
DE1941186A1 (de) Rollenwechsler fuer Rollenrichtmaschinen od.dgl.
DE226808C (fr)
AT301780B (de) Vorrichtung zum Anordnen und Wechseln von Zwischengefäßen über der Kokille einer Metall-Stranggußanlage
DE1003144B (de) Absetzvorrichtung zum Klaeren oder Eindicken von Trueben
DE2260557A1 (de) Bedienungseinrichtung fuer giesspfanne
DE363839C (de) Vorrichtung zum Kippen von Giesspfannen, bei welcher die Auslaufschnauze des Gefaesses vermittels eines oder mehrerer Anschlaege an der Aufwaertsbewegung verhindert wird
AT403669B (de) Vorrichtung zum wechseln von pfannen in anlagen für kontinuierliches giessen
DE2547365C2 (de) Vorrichtung zum Bewegen der Gießwanne einer Schleudergießmaschine
DE3046113A1 (de) Kuehlvorrichtung an einer stranggiessmaschine
DE2851259A1 (de) Spritzanlage zur mindestens teilweisen heissreparatur von schmelzgefaessen fuer stahl

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20060627

17Q First examination report despatched

Effective date: 20060802

AKX Designation fees paid

Designated state(s): ES FR GB IT TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): ES FR GB IT TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20071219

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2294600

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080704

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20160629

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160722

Year of fee payment: 12

Ref country code: IT

Payment date: 20160721

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160722

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20160722

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170708

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170708

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170708