WO2002064289A1 - Anlage zur herstellung eines warmbandes - Google Patents
Anlage zur herstellung eines warmbandes Download PDFInfo
- Publication number
- WO2002064289A1 WO2002064289A1 PCT/EP2002/000935 EP0200935W WO02064289A1 WO 2002064289 A1 WO2002064289 A1 WO 2002064289A1 EP 0200935 W EP0200935 W EP 0200935W WO 02064289 A1 WO02064289 A1 WO 02064289A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casting
- roll
- melt
- vessel
- ladle
- Prior art date
Links
- 238000009434 installation Methods 0.000 title claims abstract 5
- 238000005266 casting Methods 0.000 claims abstract description 115
- 239000002184 metal Substances 0.000 claims abstract description 38
- 239000000155 melt Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 42
- 238000009826 distribution Methods 0.000 claims description 15
- 238000007654 immersion Methods 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims 11
- 241000380131 Ammophila arenaria Species 0.000 claims 1
- 238000009749 continuous casting Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/147—Multi-strand plants
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
Definitions
- the invention relates to a plant for the production of hot strip from a metal melt by the two-roll casting process with two two-roll casting devices.
- Such a system for the production of thin, near-net-shape hot strip, preferably steel strip, by the two-roll casting process essentially consists of two spaced-apart, driven and counter-rotating casting rolls, the axes of rotation of which lie in a horizontal plane. They form a casting gap, the lateral boundary of which is formed by side plates pressed onto the end of the casting rolls. Side plates which can be pressed vertically onto the casting roll lateral surfaces are also known for this purpose.
- the two casting rollers and the side plates form a melt space into which molten metal is introduced through a dip tube.
- metal melt solidifies into strand shells, which combine to form a cast strip in the narrowest gap between the casting rolls.
- the metal strip which is conveyed vertically downward, is subsequently deflected into the horizontal, subjected to further processing steps in downstream treatment facilities and wound into metal coils.
- a system using the two-roll casting method described is already known from AT-B 406 938.
- Two parallel two-roll casters are supplied with melt independently of one another, each two-roll castor being assigned a separate ladle turret and a separate distributor vessel.
- the metal strip produced is wound into bundles, the bundles are transported from both casting plants to a common rolling plant and processed there. This system arrangement doubles the production capacity.
- the strip casting speed is limited to 15 to 150 m / min due to the heat dissipation limited to a short distance on the surface of the casting roll at a strip thickness of 1.5 to 5 mm.
- the achievable production capacity in such a system is thus limited to values between approx. 0.5 and 1.5 t / min and a strip width. This corresponds to a maximum production capacity of 100 t / h for a conventional single-strand system with casting widths up to 1300 mm. In ladles with a capacity of 150 1 molten metal and more, as they are often used, this leads to casting times of more than two hours and thus to undesirably different casting conditions over the casting time.
- two-strand belt casting machines have become known (EP-B 347 662, JP-A 62-187505), the molds of which are supplied with melt by a distributor.
- these molds do not work according to the vertical two-roll casting process, but are equipped with caterpillar molds or conventional plate molds, which may have a central extension area for the immersion pouring tube.
- the two-roll casting system required for the two-roll casting process requires much more space than molds of other types because of the lateral roll mounting, the side plates that can be adjusted on the front side of the casting rolls with their hydraulic adjustment mechanisms and the drives of the casting rolls in the axial direction.
- the object of the invention is therefore to avoid these disadvantages and difficulties and to propose a casting plant operating according to the two-roll casting process, with which it is possible to significantly increase the melt throughput in the distributor vessel beyond the capacity limit of a single-stranded casting plant working according to the two-roll casting process and at the same time the casting times of one Reduce batch significantly.
- Another object of the invention is to ensure the conditions for the molten metal, in particular with regard to a constant casting temperature over the casting time, without additional heating and to keep the dimensions of the distribution vessel, in particular the distance between the floor outlets, small.
- Another object of the invention is to find a system configuration in which as many system components as possible are used together in several production lines.
- a ladle with a melt outlet is assigned a distributor vessel for taking over the molten metal from the ladle, in that this single distributor vessel is equipped with at least two bottom outlets for transferring the molten metal to two two-roller pouring devices, in that at least one of the bottom outlets for each pouring gap is assigned to the distribution vessel and the two pouring gaps are arranged with respect to their longitudinal extension at an angle ⁇ of 15 ° to 180 °, preferably 45 ° to 120 °, in particular 60 ° to 120 ° to one another.
- a favorable arrangement results if the two casting gaps are arranged at an angle ot of approximately 90 ° with respect to one another with respect to their longitudinal extent.
- each two-roll casting device forms a production line with the downstream strip treatment devices and the production lines supplied with metal melt from a common distribution vessel are at an angle of 15 ° to 180 °, preferably 45 ° to 120 °, in particular 60 ° to 120 ° are arranged. Due to the angular position of the two production lines to each other, they can move closer together in the area of the actual two-roll caster and the distance between the central feed positions for the molten metal is minimized and the distribution vessel is shortened.
- a preferred system arrangement results if the production lines supplied by a common distributor vessel with molten metal are arranged at an angle ⁇ of approximately 90 ° to one another. The arrangement of belt deflection devices in the production lines can be avoided if the angle ⁇ , which defines the position of the casting nips of the two two-roll casting devices, is equal to the angle ⁇ , which defines the position of the two production lines to one another.
- An arrangement of two two-roll casting devices which also reduces or minimizes the length of the distributor vessel, results compared to an arrangement of two adjacent two-roll casting devices with aligned casting gaps if the two casting gaps are arranged parallel and offset with respect to their longitudinal extent.
- the production lines supplied by a common distributor vessel with molten metal are preferably arranged so as to lead away from one another.
- the arrangement of the casting nips or production lines according to the invention has proven to be particularly advantageous, in particular in the case of angular positions of the production lines relative to one another between 45 ° and 120 °, if at least one roll stand is arranged after each two-roll casting device.
- Roll stands require space on the drive side for the drive units of the rolls and space on the operator side for roll changing devices.
- Preferred angular positions of the production lines to each other enable the arrangement of roll changing stations, the associated warehouse management and, if applicable, the roll grinding shop in a spatially closed area of the production hall between the two roll stands.
- Effective ladle management is achieved if the ladle is supported in a carrying device, this carrying device is formed by a ladle turret which can be rotated about a vertical axis and has at least two receptacles for ladles, and the melt outlet of the ladle in the pouring position is approximately in the middle above the distributor vessel, preferably in the center of the area a projection of a T-shaped distribution vessel is arranged.
- the distributor vessel can also be trough-shaped or V-shaped and in this way equate to the T-shaped distributor.
- the transfer of the molten metal from the distributor vessel to the two-roll casting plant takes place in a manner which does not disturb the strand shell formation on the surfaces of the casting roller if the bottom outlets in the distributor vessel comprise immersion pouring tubes which each project centrally into a free melt receiving space between two cooperating casting rollers of the two-roller casting devices.
- the floor outlets in the distribution vessel are not more than 8.5 m apart.
- FIG. 1 showing a longitudinal section through a system for implementing the two-roll casting method according to the prior art
- FIG. 2a in a plan view of the system according to the invention with the arrangement of two
- FIG. 3a shows a top view of this system with an arrangement of two production lines at an angle of 180 ° and Fig. 3b in one Top view schematically represents a variant of the arrangement according to FIG. 3a.
- FIG. 1 An overall system for producing a steel strip from a molten steel using the two-roll casting method already described at the beginning, as is customary in the prior art, is shown schematically in FIG. 1 in a longitudinal section and limited to the most important system components.
- Casting ladles 1 filled with molten steel are removed from the smelting operation with metallurgical vehicles or one not shown Hall crane brought to the casting plant and used by this in recordings 2 of a ladle turret 4 rotatable about a vertical axis 3. From the ladle 1 in the pouring position, the molten steel flows through a melt outlet 5 into a distributor vessel 6 and from there through a bottom outlet 8 formed by an immersion pouring tube 7 to the two-roller casting device 10.
- the two-roller casting device 10 is essentially supported by two in a support frame (not shown) in support bearings , Driven and counter-rotating casting rolls 11, 12 formed.
- the casting rolls 11, 12 which are arranged at an adjustable distance from one another, together with side plates arranged at the end and not shown in FIG. 1, form a casting gap 13 which is limited in its longitudinal extent and a melt receiving space 14 in which solidified strand shells form on the casting roll surfaces and pass through the casting gap 13 the rotation of the casting rolls 11, 12 are brought together to form a cast metal strip 15.
- the metal strip 15 is subsequently conveyed out of the casting gap 13, deflected into the horizontal, conveyed further by pairs of drive rollers 16, 17 to a roll stand 18 and held there under tension.
- the metal strip 15 is cooled as it passes through cooling devices 19, cross-sectioned with scissors 20 in accordance with the required coil weights and wound into coils in a reel device 21.
- Other devices not shown, such as a loop pit for speed compensation between individual production facilities, trimming shears for treating the strip edges of the metal strip, evacuation chambers to avoid scale formation on the metal strip, intermediate heating devices, etc., are usually integrated in such systems.
- FIG. 2a A possible embodiment of an arrangement of two production lines 23, 24, each incorporating a two-roll casting device 10a, 10b of the type described above, for carrying out the vertical two-roll casting process is shown in FIG. 2a.
- the two production lines 23, 24 are arranged at an angle ⁇ of 90 ° to one another.
- the casting gaps 13a, 13b of the two-roll casting devices 10a, 10b with the casting rolls 11a, 12a and 11b, 12b, which are arranged at an angle ⁇ of 90 ° to one another, are covered by a distributor vessel 6 which extends obliquely over both two-roll casting devices 10a, 10b and are supplied with molten metal ,
- the bottom outlets 8a, 8b are positioned exactly above the casting nips 13a, 13b of the two-roll casting devices 10a, 10b and ensure a symmetrical entry of the metal melt into the melt receiving space 14 (FIG. 1).
- the ladle 1 With the ladle turret 4, the ladle 1 is brought into a pouring position above the distributor vessel 6, in which the molten metal flows into a projection 25 of the T-shaped distributor vessel 6.
- Analogous strip treatment devices are arranged in both production lines 23, 24, of which only one roll stand 18a, 18b is shown in the schematic illustration in FIG. 2a to achieve a reduction in thickness, structure improvement, surface smoothing etc. on the metal strip and the reel devices 21a, 21b ,
- the hall area between the two adjacent production lines 23, 24, in addition to the roll stands 18a, 18b, areas for the roll changing stations 30a, 30b and, if appropriate, further areas, not specified, for the common storage of roll sets and the roll grinding are provided. Through the sewing area the same
- Belt treatment facilities and the possibility of combining them result in favorable working conditions for operating and maintenance personnel with short transport routes and shared logistics. Similar synergy effects arise, for example, at the casting roll changing station and the casting roll workshop, at the plant control station and the product logistics.
- the casting nips 13a, 13b of the two casting roll devices are shown schematically at an angle ⁇ of 60 °.
- the angle ⁇ between the two production lines 23, 24 is also 60 °, so that the casting gaps 13a, 13b are always positioned normally to align the production lines 23, 24.
- Angular positions .alpha. And .beta. which differ in their size are also possible, but force the arrangement of belt deflection devices in or at the beginning of the production lines 23, 24.
- 3a shows a further possible embodiment of an arrangement of two production lines 23, 24, each incorporating a two-roll casting device 10a, 10b for carrying out the vertical two-roll casting process, the casting nips 13a, 13b, the two-roll casting devices 10a, 10b and the production lines 23, 24 at an angle of 180 °, ie parallel and offset from each other.
- the ladle turret 4 and the distributor vessel 6, from which the two production lines 23, 24 are oriented in opposite directions and the cast strip accordingly runs through the production lines in opposite directions.
- FIG. 3b shows a variant of the system arrangement shown in FIG. 3a, the production lines 23, 24 and accordingly also the casting nips 13a, 13b and the casting roller devices being arranged in parallel and laterally offset from one another.
- the invention is not restricted to the illustrated embodiments.
- the individual system components can be used in various modified forms. It is within the scope of the invention to provide other floor-based support devices for the ladles instead of the ladle turret, such as movable ladle trucks.
- a pouring crane on which the ladle hangs can also be used and replace the ladle turret.
- the shape of the distribution vessels can be adapted to one another depending on the angular positions of the production lines and can also be designed as an essentially rectangular trough or V-shaped distribution vessel. Such modifications in the design of the distribution vessel also fall under the scope of protection of a T-shaped distribution vessel.
- a multi-stand rolling device can be used to achieve higher reduction rates in the individual production lines.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-7010612A KR20030071890A (ko) | 2001-02-12 | 2002-01-30 | 열간 압연 스트립 제조용 설비 |
JP2002564071A JP2004520171A (ja) | 2001-02-12 | 2002-01-30 | 高温細長片(hotrolledstrip)生産装置 |
US10/467,743 US20040079512A1 (en) | 2001-02-12 | 2002-01-30 | Installation for producing a hot-rolled strip |
MXPA03007155A MXPA03007155A (es) | 2001-02-12 | 2002-01-30 | Instalacion para producir tira laminada en caliente. |
EP02712872A EP1360023A1 (de) | 2001-02-12 | 2002-01-30 | Anlage zur herstellung eines warmbandes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0020901A AT409830B (de) | 2001-02-12 | 2001-02-12 | Anlage zur herstellung eines warmbandes |
ATA209/2001 | 2001-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002064289A1 true WO2002064289A1 (de) | 2002-08-22 |
Family
ID=3669665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/000935 WO2002064289A1 (de) | 2001-02-12 | 2002-01-30 | Anlage zur herstellung eines warmbandes |
Country Status (8)
Country | Link |
---|---|
US (1) | US20040079512A1 (de) |
EP (1) | EP1360023A1 (de) |
JP (1) | JP2004520171A (de) |
KR (1) | KR20030071890A (de) |
CN (1) | CN1501847A (de) |
AT (1) | AT409830B (de) |
MX (1) | MXPA03007155A (de) |
WO (1) | WO2002064289A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003057391A1 (de) * | 2002-01-10 | 2003-07-17 | Sms Demag Aktiengesellschaft | Verfahren zum betrieb einer bandgiessanlage mit einer zweirollen-bandgiessmaschine |
EP3885060A1 (de) * | 2020-03-25 | 2021-09-29 | Primetals Technologies Austria GmbH | Stranggiessanlage und verfahren zum betreiben der stranggiessanlage |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103506592B (zh) * | 2012-06-29 | 2015-08-26 | 宝山钢铁股份有限公司 | 一种连铸浇钢控制方法和装置 |
ITUD20130128A1 (it) * | 2013-10-04 | 2015-04-05 | Danieli Off Mecc | Impianto siderurgico a linea di co-laminazione multipla e relativo metodo di produzione |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1908648A1 (de) * | 1969-02-21 | 1971-04-29 | Suedwestfalen Ag Stahlwerke | Mehrfach-Stranggussanlage |
EP0347662A2 (de) * | 1988-06-23 | 1989-12-27 | Sms Schloemann-Siemag Aktiengesellschaft | Bandgiessanlage mit Drehherdofen |
AT406938B (de) * | 1997-12-18 | 2000-10-25 | Voest Alpine Ind Anlagen | Anlage und verfahren zum herstellen von gewalztem band |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8903873D0 (en) * | 1989-02-21 | 1989-04-05 | Davy Distington Ltd | Continuous casting of metal workpieces |
DE4121489C2 (de) * | 1991-06-26 | 1994-08-04 | Mannesmann Ag | Ofenanlage als Zwischenspeicher hinter einer Dünnbrammengießanlage |
-
2001
- 2001-02-12 AT AT0020901A patent/AT409830B/de not_active IP Right Cessation
-
2002
- 2002-01-30 KR KR10-2003-7010612A patent/KR20030071890A/ko not_active Application Discontinuation
- 2002-01-30 US US10/467,743 patent/US20040079512A1/en not_active Abandoned
- 2002-01-30 WO PCT/EP2002/000935 patent/WO2002064289A1/de not_active Application Discontinuation
- 2002-01-30 CN CNA028081315A patent/CN1501847A/zh active Pending
- 2002-01-30 JP JP2002564071A patent/JP2004520171A/ja not_active Withdrawn
- 2002-01-30 EP EP02712872A patent/EP1360023A1/de not_active Withdrawn
- 2002-01-30 MX MXPA03007155A patent/MXPA03007155A/es unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1908648A1 (de) * | 1969-02-21 | 1971-04-29 | Suedwestfalen Ag Stahlwerke | Mehrfach-Stranggussanlage |
EP0347662A2 (de) * | 1988-06-23 | 1989-12-27 | Sms Schloemann-Siemag Aktiengesellschaft | Bandgiessanlage mit Drehherdofen |
AT406938B (de) * | 1997-12-18 | 2000-10-25 | Voest Alpine Ind Anlagen | Anlage und verfahren zum herstellen von gewalztem band |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003057391A1 (de) * | 2002-01-10 | 2003-07-17 | Sms Demag Aktiengesellschaft | Verfahren zum betrieb einer bandgiessanlage mit einer zweirollen-bandgiessmaschine |
EP3885060A1 (de) * | 2020-03-25 | 2021-09-29 | Primetals Technologies Austria GmbH | Stranggiessanlage und verfahren zum betreiben der stranggiessanlage |
Also Published As
Publication number | Publication date |
---|---|
US20040079512A1 (en) | 2004-04-29 |
AT409830B (de) | 2002-11-25 |
KR20030071890A (ko) | 2003-09-06 |
ATA2092001A (de) | 2002-04-15 |
EP1360023A1 (de) | 2003-11-12 |
JP2004520171A (ja) | 2004-07-08 |
CN1501847A (zh) | 2004-06-02 |
MXPA03007155A (es) | 2004-05-05 |
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