EP2667983B1 - Transportsystem sowie verfahren zum transportieren von walzgut zwischen mindestens zwei verarbeitungslinien - Google Patents

Transportsystem sowie verfahren zum transportieren von walzgut zwischen mindestens zwei verarbeitungslinien Download PDF

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Publication number
EP2667983B1
EP2667983B1 EP12708730.2A EP12708730A EP2667983B1 EP 2667983 B1 EP2667983 B1 EP 2667983B1 EP 12708730 A EP12708730 A EP 12708730A EP 2667983 B1 EP2667983 B1 EP 2667983B1
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EP
European Patent Office
Prior art keywords
ferry
ferries
processing
rolling material
line
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EP12708730.2A
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German (de)
English (en)
French (fr)
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EP2667983A1 (de
Inventor
Frank Benfer
Kilian Kaupper
Mathias Knigge
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SMS Group GmbH
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SMS Group GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/004—Transverse moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling

Definitions

  • the present invention relates to a transport system for transporting rolling stock between at least two processing lines, and to a method for transporting rolling stock between at least two processing lines.
  • the WO 2009/030190 A1 discloses a device for transferring continuous casting slabs from one casting line to another processing line, in which a ferry is moved transversely in stages between parallel casting drums arranged at the same distance from one another.
  • EP 593 001 A1 discloses a method and a plant for the production of hot-rolled strips or profiles of continuously cast starting material, in which from a casting line derived strand pieces are transferred via a ferry in a rolling line.
  • the transport system between the respective processing lines is a limiting factor for the productivity of the entire system. Only when the supply of the respective rolling stock, for example, the thin slabs, go quickly, an optimal machine cycle and optimum utilization of the rolling mill can be ensured.
  • From the DE 100 04 117 A1 is a furnace for heating continuously cast slabs u. Like. And for their transport from a continuous casting plant to a rolling mill, with two kiln lines, each connected to a continuous casting line and one of which is connected to a common rolling line, each kiln line containing a pivoting ferry and wherein the pivoting ferries against each other in a position pivotable in which they are essentially aligned with each other.
  • From the DE 10 2005 011254 Al is a method and a casting-rolling plant for producing hot strip of steel materials with a final thickness between 12 mm to 1 mm and a width between 900 mm to 1800 mm from continuously produced thin-strand sections between 40 to 100 mm casting thickness, with a Casting speed between 4 m / min to at least 10 m / min known, wherein from one or more thin-strand casting devices leaking and then separated, about 40 meters long thin-strand sections from a heat balance device by pivoting or parallel displacement between a first thin-strand casting device with aligned Finishing mill and the first thin-strand casting device second, parallel to the first thin-strand casting device extending thin-strand casting device to be transported to thin-strand sections are promoted.
  • WO 2011/101231 A1 is a transport device for slabs, which is arranged between at least two casting machines and at least one rolling mill, wherein the transport device has at least two linear and stationary conveyor sections, on which a slab can be conveyed in a conveying direction.
  • the transport system for transporting rolling stock between at least two processing lines comprises at least two ferries for transporting of the rolling stock.
  • the ferries are designed such that the rolling stock can be transferred from a ferry to at least one further ferry in a region between two processing lines.
  • the ferries can be moved in a direction perpendicular to respective processing lines.
  • the ferries are arranged so that they can be brought into alignment with each other in order to transfer the rolling stock from one ferry to the other ferry can.
  • the transfer from one ferry to the next takes place using special facilities provided for this purpose at the ferries for the transfer of the rolling stock.
  • the transfer takes place by means of drivable rollers, on which the rolling stock rests on the ferry. Finally, if two ferries are arranged adjacent to one another, the transfer can be carried out by simple means by suitably driving the respective rollers.
  • the transfer of the rolling stock from one ferry to another ferry takes place exactly in the middle between two spaced-apart processing lines such that the respective trajectories of the ferries are halved when using two ferries.
  • the ferries are arranged so that they can only be moved between a processing line and a transfer position lying in the middle region between the processing lines.
  • the ferries include transport rollers in order to easily transfer the rolling stock to the ferry and to be able to transfer it from there to the next ferry or to a processing line.
  • the transport rollers are electrically driven.
  • the transport system preferably serves to transport rolling stock between at least two processing lines oriented essentially parallel to one another, for example between a casting line and a rolling line aligned parallel thereto.
  • the pre-strip line may in particular comprise a reversing stand, so that the rolling process leads to the desired intermediate product by repeatedly passing through the forward and reverse operation of the reversing stand.
  • rolling stock is to be transferred from two preprocessing lines to a rolling line
  • at least three ferries are advantageously used, with one respective ferry being movable in the immediate area of the respective preprocessing line, for example the pouring line, and the third ferry being movable in the area of the rolling line.
  • a ferry between the first processing line and a region between the two processing lines is movable and the second ferry between the second processing line and a central region between the two processing lines movable.
  • the at least two ferries are preferably arranged such that they can be moved on mutually parallel track tracks that run essentially perpendicular to the processing lines.
  • the parallel trajectories are preferably spaced from each other so that the two ferries can pass each other.
  • At least one of the ferries protrudes into one of the processing lines, in particular the processing line lying outside the travel range of the ferry.
  • the ferries are provided with a heater for heating the rolling stock to avoid cooling of the rolling stock.
  • a heater for heating the rolling stock to avoid cooling of the rolling stock.
  • a gas firing, oil firing or an electric heater, in particular an induction heater is preferably used.
  • the above object is further achieved by a method for transporting rolling stock between two processing lines according to claim 5. Accordingly, two ferries are provided for transporting the rolling stock, and for transporting the rolling stock from one processing line to the other processing line, the rolling stock is transferred from a ferry to another ferry. In an area between the processing lines, the ferries are moved simultaneously and opposite to each other.
  • the rolling stock is transferred from a processing line to a first ferry, from the first ferry to a second ferry, and from the second ferry to the other processing line.
  • the rolling stock is transmitted via electrically driven transport rollers.
  • the first ferry is moved between the first processing line and the middle between the two processing lines, simultaneously moving the second ferry from the second processing line towards the middle between the two processing lines.
  • the two ferries are aligned in the middle between the two processing lines and the rolling stock is transferred from the first ferry to the second ferry. Thereafter, the two ferries return substantially simultaneously to a substantially aligned orientation with the two processing lines.
  • FIG. 1 shows a schematic representation of a plant for producing metal strips.
  • a schematically indicated slab is processed on a first processing line 10 into a sliver 100, in particular using a reversing stand 12.
  • the slabs are brought to rolling temperature via a stepping oven 110, which is connected upstream of the first processing line 10.
  • the actual processing of the rolling stock in the form of the pre-strip 100 takes place in a second processing line 20, which in the in FIG. 1 embodiment shown in the form of a rolling mill with Vorgerüstange 22 is formed.
  • the first processing line 10 and the second processing line 20 are arranged substantially parallel to each other and spaced apart by a distance d. Over this distance, which corresponds to the distance d between the first processing line 10 and the second processing line 20, the rolling stock in the form of the pre-strip 100 between the two processing lines 10, 20 must be transported.
  • finishing stands 24 and a coiler 26 are provided in the second processing line 20 and shown schematically. Since these are of minor importance to the description of the present disclosure, no further reference is made to this.
  • the transport between the first processing line 10 and the second processing line 20 is made by means of a ferry 30, which bridges the distance d between the two processing lines 10, 20.
  • the ferry 30 is guided on guide rails 32, which extend substantially perpendicular to the extension of the two processing lines 10, 20.
  • the rolling stock in the form of the pre-strip 100 is transported accordingly from the first processing line 10 to the second processing line 20 on the ferry 30 operating between the two processing lines 10, 20.
  • the ferry 30 is thereby moved transversely to the actual line direction of the processing lines 10, 20.
  • the actual operation of transporting the rolled stock in the form of the pre-strip 100 from the pre-processing line 10 to the main processing line 20 takes place in that the pre-strip 100 is driven onto the ferry waiting in the starting position 300, which is waiting in alignment with the first processing line 10 , After the pre-lap 100 rests completely on the ferry 30, the ferry 30 moves along the rails 32 and transversely to the processing direction of the first and second processing lines 10, 20 to overcome the distance d between the two processing lines 10, 20.
  • the ferry 30 has arrived at the end position 310 in an alignment aligned with the second processing line 20, the pre-strip 100 is transported down the ferry 30 and sent for further processing in the processing line 20.
  • the ferry 30 returns from the end position 310 to the home position 300, where it is ready to receive another leader, which is then again transported over the distance d from the first processing line 10 to the second processing line 20.
  • FIG. 2 clarifies this principle again.
  • the ferry 30 moves here transversely to the main processing direction of the two processing lines 10, 20 to overcome the distance d between the two substantially parallel processing lines 10, 20.
  • the following cycle for the transport process of the rolling stock results from the one processing line 10 to the other processing line 20:
  • the rolling stock is transported in the form of a Vorbandes on the in the starting position 300, in alignment with the processing line 10, waiting ferry.
  • the pre-band is completely on the ferry 30, so that the ferry can start its cross travel from the first processing line 10 to the second processing line 20.
  • the distance d of 90 m for example, it takes 120 seconds.
  • the ferry 30 when the ferry 30 has arrived at the end position 310 aligned with the second processing line 20, the pre-band is output to the processing line 20. For this further transfer process from the ferry 30 to the processing line 20 again fall to 40 seconds.
  • the ferry 30 is then, after the rolling stock has completely left the ferry 30, again moved back to the starting position 300, in alignment with the first processing line 10. For this travel distance of d of 90 m again 120 seconds are needed. Only at this time, the ferry can again record a new rolling stock. This results in a cycle time of 320 seconds.
  • FIG. 3 shows a transport system according to the present disclosure.
  • two ferries 30, 34 are now arranged. It moves the first ferry 30 between the first processing line 10 aligned with the starting position 300 and a lying between the two processing lines 10, 20 transfer position 320.
  • the second ferry 34 moves between the two processing lines 10, 20 transfer position 320 and the end position 310, in which the second ferry 34 is aligned with the second processing line 20.
  • the transfer position 320 is on the center line between the two processing lines 10, 20. Accordingly, the ferry 30 between the starting position 300 and the transfer position 320 has to travel a distance of d / 2 and the second ferry 34 between the transfer position 320 and the final position also cover a distance of d / 2.
  • the transfer position 320 may be positioned in any other position between the two processing lines 10, 20, depending on the particular requirements of the plant.
  • the distance to be overcome d between the two processing lines 10, 20 is still divided into two sections, but need not be the same length.
  • the pre-strip is transported from the first processing line 10 to the ferry 30 waiting in the starting position 300 in alignment with the processing line 10.
  • the ferry 34 which is in alignment with the second processing line 20 in the end position 310, can likewise transmit a preliminary strip already present on this ferry 34 to the second processing line 20 within 40 seconds.
  • the ferry 30 After the pre-band is fully received on the ferry 30, the ferry 30 begins to move to the transfer position 320 in the middle between the two processing lines 10, 20. It puts in the analogous to the in FIG. 2 Example shown formed a distance of d / 2, ie 45 m back. Taking into account the ferry's start-up and braking times, this transfer has a time of 70 seconds (and not 60 seconds, as shown by a halving of the route length in FIG. 2 would result because the start-up and braking times remain the same) required. At the same time, the empty ferry 34 from the end position 310 is also in the direction of the transfer position 320 in motion and sets a distance of d / 2, ie of 45 m also in 70 seconds back.
  • the preliminary band is now transferred from the first ferry 30 to the second ferry 34 arranged in alignment with the first ferry 30.
  • This transfer takes again 40 seconds.
  • the two ferries 30, 34 again set in motion, so that the ferry 30 after 70 seconds again in the starting position 300 and the ferry 34 in turn 70th Seconds in the end position 310, each aligned with the two processing lines 10, 20 is arranged.
  • the ferry 30 is then ready in the starting position 300 again to record in a new cycle another opening band and the ferry 34 is ready in the end position 310 to feed the on her submission band in a new cycle in the processing line 20.
  • Adding up results in a cycle time of 220 seconds.
  • FIG. 2 calculated cycle time results in a corresponding shortening of the cycle time by approx. 100 seconds.
  • the ferry has 30 in the in FIG. 2 shown example in one Cycle a distance of 180m (90m outward journey, 90m return journey), whereas the two ferries 30, 34 in the in FIG. 3 shown example of the present disclosure in each case only a distance of 90m (45m outward journey, 45m return journey) cover.
  • the two ferries overcome 30, 34 in FIG. 3 a distance of 180m, however, since the two ferries 30, 34 can be moved at the same time, but the effective travel time is reduced.
  • more than the two in the in FIG. 3 shown embodiment shown ferries 30, 34 are used. It is essential here to take into account the respective transfer times for the transfer of the rolling stock between the individual ferries.
  • the ferry 35 allows passage of thin slabs from the left to the right of the processing line 20, that is, in the direction of transport within the processing line 20 relative to the final position 310. While the ferry 34 is picking up the pre-strip 100 from the first processing line 10, the ferry 35 are extended laterally out of the processing line 20 to allow the ferry 34 to enter the end position 310 within the processing line 20.
  • FIG. 3 It can be seen that at least the ferry 30 completely overlaps with the second processing line 20. Accordingly, if the ferry 30 were to travel to processing line 20, it would collide with the processing line 20 and could not be aligned therewith.
  • the ferries 30, 34 are preferably heated and include in particular a gas firing, oil firing or even more preferably an electric heater.
  • the heater serves to keep the rolling stock at rolling temperature.
  • the electric heating can also be designed as induction heating or radiant heating.
  • One of the advantages of electric heating is that no combustion exhaust gases have to be removed and that the supply of the media, that is gas line versus power supply, can be carried out more easily.
  • the tonnage that can be passed through the transport system increases, so that the production can be increased.
  • the ferries 30, 34 may in particular be designed as ferry cars, which consist of a steel structure, which is lined with refractory material.
  • a roof may be provided on the respective ferries, which can be removed for maintenance purposes in segments, for example by means of a hall crane. Doors in the ferries minimize the energy loss within the ferry, and in particular, a temperature loss of the recorded prongs or slabs.
  • Bottom flaps in the ferries 30, 34 may be provided which are pneumatically actuated from time to time to remove scale falling on the ferry floor.
  • the ferries 30, 34 may be electrically powered and move on railways.
  • any other bearings or designs of ferry cars are conceivable, as long as they fulfill the above-mentioned functions.
  • Sensors are preferably provided which monitor the position and orientation of the ferries 30, 34. Furthermore, hydraulically operated locks of the ferries may be provided in the home position 300, the transfer position 320, and the end position 310 to prevent slipping or shifting of the respective ferries 30, 34 during delivery of the respective pre-belts or slabs.
  • the pre-bands are moved on the ferries 30, 34 with heat-resistant rollers. These rollers are preferably not water-cooled in order to keep the energy loss and in particular the temperature loss of the pre-bands or slabs in the ferries 30, 34 particularly low. By dispensing with water cooling of the rollers can be dispensed with a complex cooling water trailing cable.
  • the rollers provided on the ferries 30, 34 are preferably each equipped with a motor, which can be driven and synchronized by frequency converters.
  • the travel speed for the pre-strips or slabs is preferably between 0 and 60 m per minute. Due to the lack of water cooling of the rollers, the roller bearing must be designed so that a thermal expansion of the roller bearings without affecting the actual housing of the ferries 30, 34 is possible.
  • the rollers are preferably laterally provided with a C-hook, by means of which the rollers can be discharged for maintenance on a hall crane.
  • FIG. 4 shows another embodiment of a transport system, but this time with two preprocessing lines 10, 10 'and a central processing line 20.
  • the two preprocessing lines 10, 10' may be, for example, two casting lines, and the processing line 20 a rolling line.
  • a rolling stock received on each of the ferries 30, 30' can be transferred to the ferry 34, which is then transferred to the end position 310 in alignment with the processing line 20.
  • the ferry 34 oscillates between the transfer position 320, the end position 310 and the other transfer position 320 '.
  • here is another (fourth) ferry 34 'provided in FIG. 4 in parentheses. Accordingly, the ferry 34 only needs to be reciprocated between the transfer position 320 and the end position 310, and the ferry 34 'only between the transfer position 320' and the end position 310. In order to prevent a collision of the ferries 34 and 34 ', these are operated out of phase, so if the one ferry 34, for example, at the transfer position 320, the other ferry 34' is in the final position 310. When the ferry 34 'at the transfer position 320 ', the ferry 34 is in the end position 310. In this way, a further shortened clock for loading the processing line 20 can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Intermediate Stations On Conveyors (AREA)
EP12708730.2A 2011-01-26 2012-01-26 Transportsystem sowie verfahren zum transportieren von walzgut zwischen mindestens zwei verarbeitungslinien Active EP2667983B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110003146 DE102011003146A1 (de) 2011-01-26 2011-01-26 Transportsystem sowie Verfahren zum Transportieren von Walzgut zwischen mindestens zwie Verarbeitungslinien
PCT/EP2012/051217 WO2012101210A1 (de) 2011-01-26 2012-01-26 Transportsystem sowie verfahren zum transportieren von walzgut zwischen mindestens zwei verarbeitungslinien

Publications (2)

Publication Number Publication Date
EP2667983A1 EP2667983A1 (de) 2013-12-04
EP2667983B1 true EP2667983B1 (de) 2019-06-05

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EP12708730.2A Active EP2667983B1 (de) 2011-01-26 2012-01-26 Transportsystem sowie verfahren zum transportieren von walzgut zwischen mindestens zwei verarbeitungslinien

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Country Link
EP (1) EP2667983B1 (ru)
DE (1) DE102011003146A1 (ru)
RU (1) RU2550442C2 (ru)
TW (1) TW201235125A (ru)
WO (1) WO2012101210A1 (ru)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20130127A1 (it) * 2013-10-04 2015-04-05 Danieli Off Mecc Impianto siderurgico per la produzione di prodotti metallici lunghi e relativo metodo di produzione
EP2944386A1 (en) † 2014-05-13 2015-11-18 Primetals Technologies Austria GmbH Apparatus and method for production of long metal products

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020412A1 (de) * 2007-08-24 2009-02-26 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908457A1 (de) 1989-03-15 1990-09-20 Loi Ind Ofenanlagen Verfahren und anlage zum herstellen von gewalztem material aus brammen
DE4001288A1 (de) 1990-01-18 1991-07-25 Schloemann Siemag Ag Anlage zum auswalzen von warmbreitband
DE4234454A1 (de) 1992-10-13 1994-04-14 Schloemann Siemag Ag Verfahren und Anlage zur Herstellung von warmgewalzten Bändern oder Profilen aus stranggegossenem Vormaterial
DE10004117A1 (de) * 2000-01-31 2001-08-02 Loi Thermprocess Gmbh Ofenanlage
DE10154138A1 (de) * 2001-11-03 2003-05-15 Sms Demag Ag Verfahren und Gießwalzanlage zum Herstellen von Stahlband, insbesondere von Edelstahl-Band
DE102005011254B4 (de) * 2005-03-11 2007-01-11 Ispat Industries Ltd., Taluka-Pen Verfahren und Gieß-Walz-Anlage zum Erzeugen von Warmband aus Stahlwerkstoffen
DE102007043003A1 (de) 2007-09-06 2009-03-12 Sms Demag Ag Einrichtung zur Überleitung von Stranggießbrammen
DE102010008292B4 (de) * 2010-02-17 2024-03-07 Sms Group Gmbh Transportvorrichtung für Brammen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020412A1 (de) * 2007-08-24 2009-02-26 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen

Also Published As

Publication number Publication date
RU2550442C2 (ru) 2015-05-10
EP2667983A1 (de) 2013-12-04
RU2013139175A (ru) 2015-03-10
DE102011003146A1 (de) 2012-07-26
TW201235125A (en) 2012-09-01
WO2012101210A1 (de) 2012-08-02

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