EP0035988B1 - Einrichtung zum Trennen eines Anfahrstranges von einem Gussstrang an einer Stranggiessanlage - Google Patents

Einrichtung zum Trennen eines Anfahrstranges von einem Gussstrang an einer Stranggiessanlage Download PDF

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Publication number
EP0035988B1
EP0035988B1 EP81890032A EP81890032A EP0035988B1 EP 0035988 B1 EP0035988 B1 EP 0035988B1 EP 81890032 A EP81890032 A EP 81890032A EP 81890032 A EP81890032 A EP 81890032A EP 0035988 B1 EP0035988 B1 EP 0035988B1
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EP
European Patent Office
Prior art keywords
strand
guide
starter bar
cast
slide
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
Application number
EP81890032A
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German (de)
English (en)
French (fr)
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EP0035988A1 (de
Inventor
Aktiengesellschaft Voest-Alpine
Original Assignee
Voestalpine AG
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Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0035988A1 publication Critical patent/EP0035988A1/de
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    • 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
    • B22D11/081—Starter bars
    • B22D11/083—Starter bar head; Means for connecting or detaching starter bars and ingots

Definitions

  • the invention relates to a device for separating a starting strand from a cast strand on a continuous casting installation with an arcuate strand guide part and an approximately horizontal strand guide part having a cutting device for the cast strand, in particular on a steel slab continuous casting installation, the starting strand being in a direct cast connection with the Cast strand connectable, reusable starting strand head, a so-called "permanent head", which can be detached from the casting strand by means of a separating device arranged in the strand guide, and the starting strand can be removed from the strand guide by means of a lifting device.
  • a permanent head is known for example from DE-OS 2 748 690.
  • This reference also describes a device for separating the permanent head from the cast strand. With this device, the hook-shaped permanent head is moved transversely to the axis of the strand, whereby the hook-shaped permanent head disengages from the end of the cast strand. Then the start-up strand is moved away from the cast strand in the direction of the strand axis at a speed exceeding the conveying speed of the cast strand and the permanent head is lowered again, whereupon the start-up strand can run unimpeded along the strand guide until it is lifted by a crane etc. and placed on a shelf, or for example, on a swiveling rocker serving as a shelf.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a device of the type described in the introduction, which allows a short set-up time to be maintained at the start of casting and in which the devices leading to the starting strand of the mold can be made as inexpensively as possible, whereby however, even if the permanent head cannot be separated from the cast strand, a casting stop is avoided and in this case the cast strand and start-up strand can also run separately from the separation point.
  • the starting strand is separated from the permanent head by releasing the hook-shaped coupling; the start-up line is then further conveyed out of the line guide along the path intended for it; the permanent head remains on the cast strand and is conveyed with it via the strand guide part having the cutting device. It is removed from the cast strand together with the top of the cast strand.
  • the separating device it is possible to arrange the separating device after a last driving roller as seen in the direction in which the strand is pulled out, as a result of which a particularly early separation of the starting strand from the cast strand can be achieved.
  • a driving roller pair arranged above the strand guide and a starting strand guide leading to the driving roller pair and branching off from the strand guide and designed as a skid-like switch are provided as the lifting device.
  • the skid-like switch is designed in two parts, a part being pivotable on the approximately horizontal strand guide and a part pivotably articulated above this strand guide, and the part arranged above the horizontally arranged strand guide consisting of a part aligned with the part arranged in the strand guide Position is pivotable over the vertical.
  • the device according to the invention in a system similar to the system described in AT-PS 343 835.
  • a system is provided with a transport carriage having a slide or roller conveyor, with which the start-up strand can be transported to an inlet part of the strand guide, the transport carriage carrying a conveyor device for the start-up strand and the slide or roller conveyor having arcuate end parts, and furthermore on the Transport trolley the lifting device is provided for detecting and lifting the start-up line.
  • the transport carriage can only be moved from one threading unit in the mold to a receiving position in front of the cutting device (seen in the direction of pulling out the strand) and back.
  • Mch can provide the device according to the invention; where the slide or roller conveyor from the mold to. (seen in the pull-out direction of the strand) in front of the cutting device.
  • the hook-shaped coupling has, on the one hand, a bolt flattened on two opposite sides and, on the other hand, a bore which receives the bolt and a slot which extends from the bore and is open towards the top of the starting strand for the passage of the flattened bolt.
  • FIGS. 1, 3 and 4 each showing an overall view in a schematic representation of a continuous casting installation according to one embodiment.
  • Fig. 2 illustrates a detail of Fig. 1, namely the hook-shaped coupling, in section and on an enlarged scale.
  • Fig. 1, 1 is a continuous mold of a slab caster, to which a strand guide is connected at the bottom.
  • the liquid steel flows from an intermediate vessel 2 via a pouring tube 3 into the cavity of the mold.
  • 4 is the bending zone of the strand guide, in which the cast strand 5 is bent from the vertical into an arc.
  • Adjacent to the bending zone 4 is an arcuate strand guide part, the guide frame 6, in which the strand is supported on the top and bottom by support rollers 7, as in the bending zone 4.
  • a straightening zone 8 is provided next to the circular arch-shaped guide frame 6, in which the circular arch-shaped cast strand 5 is being straightened.
  • an approximately horizontally directed strand guide part 9 in which the strand is also still supported on the top and bottom by means of support rollers 7.
  • a last pair of driving rollers 10 is provided.
  • the last pair of driving rollers 10 is followed by an approximately horizontal strand guide part 11, which has a separating device 12 for separating the starting strand 13 from the cast strand 5.
  • a further, also approximately horizontally arranged strand guide part 14 is provided, which has a cutting device 15 for cutting the cast strand 5 to length and severing the beginning and end of the cast strand 5.
  • This cutting device is designed as a flame cutter 17 which can be moved on rails 16.
  • This strand guide part 14 is called the flame cutting roller table.
  • the flame cutting roller table 14 is followed by the outlet roller table, not shown in the case of continuous casting plants, from which the slabs cut to length from the cast strand are lifted by means of a crane, etc.
  • the separating device 12 has a roller 19 which can be raised and lowered by means of a pressure medium cylinder 18 and by means of which the starting strand 13 can be raised as soon as the permanent head 20 of the starting strand 13 has passed the last pair of driving rollers 10.
  • a start-up head that can be used again and again is referred to, which has a recess, for. B.
  • the surfaces of the permanent head 20 involved in this cast composite are prepared in a known manner in order to prevent welding to the cast strand 5.
  • the permanent head 20 is connected to the following link body 23 by link bodies 23, 24
  • Composite start-up line 13 is connected by means of a hook-shaped coupling 25, which is open towards the top of the start-up line and is shown in detail in FIG. 2.
  • a bolt 26 connecting the permanent head 20 to the subsequent link body 23 is flattened on two opposite sides 27, 27 '.
  • a slot 30 opens toward the top 29 of the starting strand 13, the width 31 of which is slightly larger than the thickness 32 of the flattened part of the bolt 26, so that the bolt , which is connected to the link body 23 in a rotationally fixed manner, can slide out of the permanent head 20 by pivoting the link body 23 following the permanent head by approximately 90 ° into the position shown in FIG. 2 and moving in the direction of the arrow 33.
  • a lifting device for the start-up line comprises a two-part, arcuate, skid-like switch 34, part 35 being articulated on the line guide part 11 and part 36 above this line guide part.
  • Each of these parts can be pivoted by means of its own pressure medium cylinder 37, 38 from the position A or B shown in broken lines in FIG. 1 to the position A 'or B' shown in full lines in FIG. 1, in which the ends of the parts facing each other two switch sides 35, 36 are aligned.
  • a pair of drive rollers 39 is provided for the start-up line 13, through which the start-up line, as soon as it is grasped by it, can be conveyed upwards, where it is picked up by a crane, for example, or where it is on a Tray arrives.
  • the lifting device lifting the starting strand from the strand guide part 11, which is formed by the switch 34 and the pair of driving rollers 39, is arranged at a distance behind the separating device 12 which is smaller than the length of the starting strand, so that the starting strand when its permanent head reaches the separating device , is already covered by the lifting device.
  • the function of the device is as follows: Even before the starting strand 13 reaches the separating device 12 with its foot part 40, the switch parts 35, 36 are pivoted into the fully extended position in FIG. 1, so that the foot part 40 of the starting strand slides over these switch parts until it slides from the drive rollers 41 of the .
  • the start-up strand 13 is conveyed up at a speed which is greater than the conveying speed of the cast strand 5, the pivotable roller 19 is lowered again by pivoting back, and the cast strand 5 reaches the flame cutting roller table 14, where the beginning of the crimp is first cut off and the cast strand is divided into slabs of a predetermined length.
  • the skid-like switch parts 35, 36 are pivoted back from the position A ', B' shown in full lines in Fig. 1 in the dash-dotted position A, B and the cast strand continues conveyed until he has reached the position shown in dashed lines in Fig. 1.
  • the permanent head 20 still occupies a position aligned with the cast strand; the remaining part of the start-up line is directed approximately vertically upwards. It is held by the pair of driving rollers 39. In this position, the hook-shaped coupling shown in detail in FIG.
  • the starting strand 13 can also be threaded into the strand guide.
  • the drive rollers 41 of the drive roller pair 39 are then driven in the opposite direction until at least the permanent head is caught by the last drive roller pair 10 of the strand guide part 9, whereupon the starting strand is moved through the strand guide to the mold 1.
  • the continuous casting installation is essentially identical to the continuous casting installation shown in FIG. 1; corresponding parts are provided with the same reference numerals.
  • the lifting device 42 according to FIG. 3 comprises a fixed guide 43 which is attached to the frame 44 of the system. In this guide is attached to a crossbar 45 Hook 46 guided vertically, the hook being able to be lifted by a lifting mechanism 48 by means of lifting ropes 47 or lifting chains.
  • a transport carriage 51 On the casting platform 49, a transport carriage 51 is guided on rails 50, which can be moved from the rear receiving position, which is drawn with full lines, into the threading position, shown in broken lines, on the mold 1.
  • a slideway or roller track 52 is arranged on the transport carriage 51, the front end 53 and the rear end 54 of which are designed in the shape of a quarter circle.
  • a sliding device 55 can be moved back and forth along the slide or roller track 52 in the longitudinal direction of the transport carriage.
  • the displacement device is designed as a carriage which is guided on rails 57 of the transport carriage 51 by means of wheels 56.
  • the displacement device 55 contains a vertical guide 58 which is aligned with the stationary guide 43.
  • a driver device 59 is provided on the displacement device 55, which has a pin 60 that can be raised and lowered manually or by machine.
  • the starting strand is shown emerging from the last pair of drive rollers 10.
  • the foot part 40 extends straight to the hook 46 of the lifting device 42.
  • the lifting device 48 of the displacement device located in the rear position is actuated and the starting strand 13 consisting of individual link bodies 23, 24 is raised.
  • the roller 19 which can be raised and lowered is lifted, as a result of which the starting strand 13 is separated from the casting strand 5.
  • the start-up line is then raised until the hook 46 is drawn into the guide 58 of the displacement device 55.
  • the displacement device is now moved in the longitudinal direction of the transport carriage 51 to the mold 1, the starting strand being placed over the quarter-circular rear end 54 of the slide or roller track 52 and being pulled over the horizontal part of this track. Then the hook is unhooked from the foot part 40 of the starting strand 13 and the transport carriage 51 is moved to the mold until it reaches the position shown in broken lines in FIG. 3. The displacement device 55 then moves back to the rear position.
  • the pin 60 of the driver device 59 is inserted into a recess near the permanent head 20 of the start-up strand and the displacement device 55 is moved to the front end of the transport carriage 51 and the foot end of the start-up strand is threaded into the mold 1 via the front end 53 of the roller conveyor 52 until the foot part 40 of the starting strand 13, the first of the driven rollers, which are denoted by 61, has reached the strand guide and is held by these. (This is shown in FIG. 3 with dashed lines.) After the pin 60 has been uncoupled, the starting strand is drawn into the mold until its head closes off the bottom of the mold. After the transport carriage 51 has moved away, the casting can be started.
  • the mold and possibly also a strand guide part can be removed, the starting strand being threaded into the strand guide and drawn in.
  • the start-up strand is brought into a position in which the permanent head 20 is still horizontally aligned with the cast strand, but the rest of the start-up strand part is directed at right angles thereto, whereupon the hook-shaped coupling 25 of the permanent head 20 with the next following link body 23 of the starting strand is released by pulling up the starting strand in the direction of arrow 33.
  • the effort for the devices feeding the starting strand 13 of the mold 1 is substantially less than, for example, in a system in which the starting strand is only removed from the strand guide after the flame cutting roller table 14.
  • FIG. 4 shows a continuous casting plant similar to the system shown in FIG. 3, but the starting strand 13 after lifting by means of the lifting device 62 is not conveyed to the mold by means of a transport carriage but by means of a slide or roller track 63.
  • a shifting device 64 for shifting the starting strand along the slide or roller track is designed similarly to the shifting device 55 shown in FIG. 3.
  • the rails 57 provided for them are arranged in a stationary manner above the casting platform 49.
  • the slideway or roller track leading to the mold for the starting strand has quarter-circle-shaped end parts 65, 66, the quarter-circle-shaped end part 65 arranged in the mold being articulated on the frame 44 of the system by means of two links 67, 68 and by means of a pressure medium cylinder 69 from the one shown in FIG 4 position shown with full lines is pivotable into the position shown in broken lines.
  • the function of this system is similar to that shown in FIG. 3. (The threading of the start-up strand into the strand guide through the mold is shown with dashed lines.) However, in contrast to the system shown in FIG. 3, there is no need to move a transport carriage 51 when conveying the start-up strand to the mold.
  • the device feeding the starting strand to the mold can be designed to be considerably less complex than in a system in which the starting strand is only lifted off the strand guide after the flame cutting roller table.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP81890032A 1980-03-05 1981-02-24 Einrichtung zum Trennen eines Anfahrstranges von einem Gussstrang an einer Stranggiessanlage Expired EP0035988B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT120280A AT365104B (de) 1980-03-05 1980-03-05 Einrichtung zum trennen eines an einen anfahrstrang kuppelbaren anfahrstrangkopfes von einem gussstrang in einer stranggiessanlage
AT1202/80 1980-03-05

Publications (2)

Publication Number Publication Date
EP0035988A1 EP0035988A1 (de) 1981-09-16
EP0035988B1 true EP0035988B1 (de) 1983-07-13

Family

ID=3508818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890032A Expired EP0035988B1 (de) 1980-03-05 1981-02-24 Einrichtung zum Trennen eines Anfahrstranges von einem Gussstrang an einer Stranggiessanlage

Country Status (7)

Country Link
EP (1) EP0035988B1 (es)
JP (1) JPS56136259A (es)
AT (1) AT365104B (es)
BR (1) BR8101236A (es)
CA (1) CA1174829A (es)
DE (1) DE3160585D1 (es)
ES (1) ES8207003A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590984A (en) * 1981-11-27 1986-05-27 Sms Concast Inc. Dummy bar disconnecting arrangement
CH660139A5 (de) * 1983-05-11 1987-03-31 Concast Service Union Ag Verfahren zum abtrennen des schopfendes eines gegossenen stranges mittels einer schere in einer stranggiessanlage.
AT517976B1 (de) * 2015-11-18 2019-11-15 Primetals Technologies Austria GmbH Angießvorrichtung einer Stranggießanlage und deren Betrieb
CN110039018A (zh) * 2019-04-28 2019-07-23 中冶南方连铸技术工程有限责任公司 柔性引锭杆在线存放装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU468819B2 (en) * 1973-08-08 1976-01-22 Uss Engineers And Consultants, Inc Method and apparatus for handling and top-charging a starter bar
AT340624B (de) * 1976-02-26 1977-12-27 Voest Ag Einrichtung zum trennen des anfahrstranges vom warmstrang in einer stranggiessanlage
DE2744770A1 (de) * 1976-10-07 1978-04-13 Concast Ag Ausfoerdereinrichtung fuer knueppel oder vorbloecke einer mehrstranggiessanlage fuer stahl und ein verfahren zum betrieb
AT343834B (de) * 1976-02-26 1978-06-26 Voest Ag Einrichtung zum einbringen eines mit einem anfahrkopf versehenen flexiblen anfahrstranges in eine stranggiessanlage
DE2928783A1 (de) * 1978-08-04 1980-02-14 Voest Alpine Ag Einrichtung zum trennen des anfahrstranges vom warmstrang in der strangfuehrungsbahn einer stranggiessanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242404B2 (es) * 1974-02-07 1977-10-24
CH622194A5 (es) * 1977-06-09 1981-03-31 Concast Ag
JPS5914033Y2 (ja) * 1978-03-28 1984-04-25 日立造船株式会社 連続鋳造設備におけるダミ−バ−収納装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU468819B2 (en) * 1973-08-08 1976-01-22 Uss Engineers And Consultants, Inc Method and apparatus for handling and top-charging a starter bar
AT340624B (de) * 1976-02-26 1977-12-27 Voest Ag Einrichtung zum trennen des anfahrstranges vom warmstrang in einer stranggiessanlage
AT343834B (de) * 1976-02-26 1978-06-26 Voest Ag Einrichtung zum einbringen eines mit einem anfahrkopf versehenen flexiblen anfahrstranges in eine stranggiessanlage
DE2744770A1 (de) * 1976-10-07 1978-04-13 Concast Ag Ausfoerdereinrichtung fuer knueppel oder vorbloecke einer mehrstranggiessanlage fuer stahl und ein verfahren zum betrieb
DE2928783A1 (de) * 1978-08-04 1980-02-14 Voest Alpine Ag Einrichtung zum trennen des anfahrstranges vom warmstrang in der strangfuehrungsbahn einer stranggiessanlage

Also Published As

Publication number Publication date
EP0035988A1 (de) 1981-09-16
ES500086A0 (es) 1982-09-01
JPS56136259A (en) 1981-10-24
BR8101236A (pt) 1981-09-08
ATA120280A (de) 1981-05-15
CA1174829A (en) 1984-09-25
JPH0224620B2 (es) 1990-05-30
AT365104B (de) 1981-12-10
DE3160585D1 (en) 1983-08-18
ES8207003A1 (es) 1982-09-01

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