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EP1116534B1 - Dispositif pour éviter le refroidissement non désiré des bords d' une tôle coulée - Google Patents

Dispositif pour éviter le refroidissement non désiré des bords d' une tôle coulée Download PDF

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Publication number
EP1116534B1
EP1116534B1 EP01100532A EP01100532A EP1116534B1 EP 1116534 B1 EP1116534 B1 EP 1116534B1 EP 01100532 A EP01100532 A EP 01100532A EP 01100532 A EP01100532 A EP 01100532A EP 1116534 B1 EP1116534 B1 EP 1116534B1
Authority
EP
European Patent Office
Prior art keywords
strip
spray
edge regions
running water
cooling chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01100532A
Other languages
German (de)
English (en)
Other versions
EP1116534A1 (fr
Inventor
Norbert Vogl
Jürgen Friedrich
Hans Streubel
Joachim Schwellenbach
Axel Bekurts
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1116534A1 publication Critical patent/EP1116534A1/fr
Application granted granted Critical
Publication of EP1116534B1 publication Critical patent/EP1116534B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling

Definitions

  • the invention relates to a method and a device for preventing a undesirable cooling, in particular the band edge regions of a cast strand as a result of this with the bottom opening of a secondary cooling chamber leaving running water.
  • the cooling device in the area of the deflection, that is, to about 1/3 to 2/3 of the longitudinal extent the support and guide device consists of flat jet nozzles. Especially the cooling device should also at the bottom of the slab from flat jet nozzles consist.
  • DE-AS 1 558 194 describes a method and a device for cooling a cast strand in a secondary cooling zone.
  • the cast strand is cooled in zones, the transverse to the strand axis are offset from each other, with the proviso that the cooling effect in the zones of adjacent planes becomes one above the strand surface transverse to the strand axis approximately uniformly extending cooling effect complete.
  • DE-AS 1 289 956 discloses a secondary cooling device for straight-sided Stranggußerzeugnisse. This consists of several arranged transversely to the strand axis Atomizing nozzles.
  • the atomizer nozzles have a flat characteristic the impinging amount of coolant and are at such a distance of each adjacent nozzle, in which the nozzle edges so far overlap that the cooling in the overlap area only slightly from the cooling of the lying outside of the overlapping surface parts deviates.
  • JP is concerned with the secondary cooling of a cast in a mold Slab, for example, with a casting speed of 1.5 m / min and with a throughput of 3 t / min is generated.
  • the slab removed from the mold is secondarily cooled by placing on the slab surface of a cooling unit and with nozzles distributed over the width of the slab, a cooling medium is injected becomes.
  • a cooling medium is injected becomes.
  • the cooling unit must be adapted to the smaller slab width become.
  • the invention has the object underlying, a method and an apparatus suitable for carrying it out indicate, by which the outlet of running water from the secondary cooling chamber a continuous casting plant laterally next to the strand and an associated undesirable intensive supercooling of the strand edges are prevented can.
  • An embodiment of the method according to the invention provides that as a deflection medium Water or air or a water / air mixture is used. In order to will be an even better adaptation of the process parameters to the respective Production conditions of a continuous casting plant achieved.
  • the method according to the invention provides that sprays with flat Spray cones are generated.
  • a spray of this form escapes the Stands a minimum of heat, although it can not be avoided that too the strand is partially sprayed by the deflection medium.
  • a further embodiment of the method according to the invention provides that transversely to each side of an edge of the casting partially overlapping rows be generated by spray cones. This will provide complete coverage each side of an edge of the cast strand with sprays of the deflection medium reached.
  • An advantageous embodiment of the method further provides that the edge regions the cast strand in comparatively short distance upstream the bottom opening of the secondary cooling chamber to be sprayed. This will be special favorable process parameters for the deflection of the running water from the Band edge areas achieved.
  • the method according to the invention provides that at one the width the strand bridging arrangement of a plurality of nozzles in series, to the narrow sides of a strand in accordance with changing strand width individual Nozzle pairs of the nozzle rows are switched on or off. With that result to be sprayed in uncomplicated and advantageous variable zones Band edge regions transverse to the strand axis, in accordance with the respective width of the strand.
  • the invention provides that sprays are approximately perpendicular sprayed to the surface against band edge areas. This will be an optimal one Sperr bin generated against escaping running water, without the broadsides of the strand undesirably struck by the spray be exposed and the strand edges of an undesirable cooling effect.
  • a device for preventing unwanted intensive cooling of the Band edge areas of a cast jet through with this from the bottom opening a secondary chamber escaping running water, arranged in series Spray nozzles for generating high-energy, directed against the running water outlet Spray jets, the spray nozzles at a relatively short distance upstream of the cast strand at the secondary cooling chamber associated Bottom opening are arranged, and further wherein the spray nozzles to several in each one row summarized in the direction of the strand width and each individually are connected via throttle devices to a feed line.
  • a continuous casting plant with means for Implementation of the method according to the invention is shown in side view as that the viewer sees on the narrow side of the cast strand 6.
  • the purely schematic representation of this plant area shows the mold at the top 22, from which a cast strand 6 according to the arrow 21 pulled down becomes. He goes through a merely indicated as a black box strand guide 23 within a secondary cooling chamber, also shown as a black box 8.
  • the purely schematic representation of strand guide 23 and cooling chamber 8 without specification of constructive details was for the sake of clarity elected, because it is assumed that a professional with the design constructive details of these elements is familiar.
  • the lower area of the secondary cooling chamber 8 is the bottom 20 with the bottom opening 7, through which of the strand 6 together with a stream of running water 9 down to exit.
  • the spray jets 10 are the upper and lower Nozzle row 25, 26 directed at an angle ⁇ against the direction of the run-water 9. As a result, the deflection of the running water 9 is optimized.
  • the illustration further shows the cast strand 6 and the bottom opening 7 sloping upward cooling chamber bottom 20, which next to the Strand 6, the bottom opening 7 keeps open, in particular in the area a Flow through run-water 9 should be avoided by means of the invention. This is achieved by the action of the high-energy sprays 10, and by their impact on the running water stream 9, the running water in the Both sides of the cast strand 6 existing drain holes 12 of the secondary cooling chamber 8 is derived.
  • FIG. 4 shows a further sectional view of the cooling chamber 8 in the sectional planes II. - II. Of FIG. 1 and that an arrangement of spray nozzles 17 in rows 15th for the formation of high-energy spray jets 10 at the strip edge regions 11 Casting 6.
  • the piping of the spray nozzles 17 is formed by supply lines 24, which sideways the nozzle rows 15 each individually connected to throttle devices 1 to 5 are and these in turn from a common feeder 18 out.
  • the illustration also shows the bottom opening 7 in the cooling chamber bottom 20.
  • 19 denotes the variable width sections of the cast strand 6, which indicate a gradual change in strand width.
  • Figure 5 shows an enlarged view and also in plan view on a section along the plane II. - II.
  • Fig. 1 further functional elements, namely the strand 6, the bottom chamber 7, the cooling chamber bottom 20, the run-off 9 to be prevented in the area of the strip edges 11, as well as the arrangement of nozzle rows 15 with spray nozzles 17.
  • the supply lines to the nozzles 17 are indicated generally by the reference numeral 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Claims (11)

  1. Procédé pour éviter un refroidissement non souhaité, en particulier des zones de bord (11) d'un brin coulé (6), suite à une eau (9) sortant avec celui-ci de l'ouverture de fond (7) d'une chambre de refroidissement (8) secondaire, caractérisé en ce que des jets de pulvérisation (10) riches en énergie d'un milieu de déviation sont produits et dirigés transversalement par rapport aux zones des bords (11) contre la sortie de l'eau de telle manière que l'eau (9) est déviée des zones de bord (11) et est évacuée via des ouvertures d'écoulement (12) de la chambre de refroidissement (8) secondaire présentes des deux côtés du brin coulé (6), les zones de bord (11) du brin coulé (6) étant aspergées à une distance relativement faible en amont de l'ouverture (7) du fond de la chambre de refroidissement (8) secondaire.
  2. Procédé selon la revendication 1, caractérisé en ce que de l'eau ou de l'air ou un mélange eau/air est utilisé comme milieu de déviation.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que des jets de pulvérisation (10) avec des cônes de pulvérisation (13) plats sont produits.
  4. Procédé selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que des séries (15) de cônes de pulvérisation (13) qui se recouvrent partiellement sont produites transversalement par rapport à chaque côté d'un bord (14) du brin coulé (6).
  5. Procédé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que les jets de pulvérisation (10) sont de préférence pulvérisés sous un angle (α) contre le sens d'écoulement de l'eau (9).
  6. Procédé selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que dans le cas d'une disposition à chaque fois de plusieurs pulvérisateurs en série (15) recouvrant la largeur du brin (6), des paires de pulvérisateurs (1, 1' ; 2, 2' ; 3, 3' ; etc) des séries de pulvérisateurs (15) sont mises en fonctionnement ou arrêtées sur les petits côtés (16) d'un brin (6), selon une largeur variable du brin (b ou B).
  7. Procédé selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que les jets de pulvérisation (10) sont pulvérisés de manière quasiment perpendiculaire par rapport à la surface du brin contre les zones de bord (11).
  8. Dispositif pour éviter un refroidissement non souhaité des zones de bord (11) d'un brin coulé (6) suite à une eau (9) sortant avec celui-ci de l'ouverture de fond (7) d'une chambre de refroidissement (8) pour réaliser le procédé selon les revendications 1 à 7, caractérisé en ce que des pulvérisateurs (17) disposés en série sont prévus en vue de la production de jets de pulvérisation (10) riches en énergie, dirigés contre la sortie de l'eau, en ce que les pulvérisateurs (17) sont disposés à une distance relativement faible en amont de l'ouverture de fond (7) associée au brin (6) de la chambre de refroidissement secondaire (8), et en ce que les pulvérisateurs sont rassemblés en plusieurs séries (15) dans le sens de la largeur du brin et sont tous raccordés via des dispositifs d'étranglement (1 à 5) à une conduite d'alimentation (18).
  9. Dispositif selon la revendication 8, caractérisé en ce que les pulvérisateurs (17) sont disposés avec des axes orientés perpendiculairement par rapport aux surfaces du brin coulé (6).
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que les pulvérisateurs (17) destinés à la production de jets de pulvérisation (10) dirigés perpendiculairement par rapport au brin coulé (6) sont disposés avec des axes (x-x) à orientation réglable de manière correspondante.
  11. Dispositif selon l'une ou plusieurs des revendications 8 à 10, caractérisé en ce que les pulvérisateurs (17) sont réalisés en vue de la production d'un cône de pulvérisation (13) plat et large avec des fentes de sortie étroites.
EP01100532A 2000-01-13 2001-01-10 Dispositif pour éviter le refroidissement non désiré des bords d' une tôle coulée Expired - Lifetime EP1116534B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10001073 2000-01-13
DE10001073A DE10001073A1 (de) 2000-01-13 2000-01-13 Verfahren und Vorrichtung zum Verhindern einer unerwünschten Abkühlung der Bandkantenbereiche eines Gußstranges

Publications (2)

Publication Number Publication Date
EP1116534A1 EP1116534A1 (fr) 2001-07-18
EP1116534B1 true EP1116534B1 (fr) 2005-04-27

Family

ID=7627337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01100532A Expired - Lifetime EP1116534B1 (fr) 2000-01-13 2001-01-10 Dispositif pour éviter le refroidissement non désiré des bords d' une tôle coulée

Country Status (11)

Country Link
US (1) US6508298B2 (fr)
EP (1) EP1116534B1 (fr)
JP (1) JP2001198656A (fr)
KR (1) KR100725034B1 (fr)
CN (1) CN1210122C (fr)
AT (1) ATE294040T1 (fr)
BR (1) BR0102254B1 (fr)
CA (2) CA2331078C (fr)
DE (2) DE10001073A1 (fr)
ES (1) ES2240243T3 (fr)
MX (1) MXPA01000331A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110022659A (ko) * 2008-06-06 2011-03-07 노벨리스 인코퍼레이티드 워터 제트를 사용하여 잉곳으로부터 냉각수를 제거하는 방법 및 장치
DE102017213842A1 (de) * 2017-08-08 2019-02-14 Sms Group Gmbh Verfahren und Anlage zum Stranggießen eines metallischen Produkts
CN107598112A (zh) * 2017-10-30 2018-01-19 中冶赛迪工程技术股份有限公司 一种连铸机二冷水喷淋宽度控制装置及方法
DE102018205685A1 (de) * 2018-04-13 2019-10-17 Sms Group Gmbh Kühleinrichtung und Verfahren zu deren Betrieb
CN110918917A (zh) * 2019-11-18 2020-03-27 张家港宏昌钢板有限公司 一种连铸二冷水系统

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT233186B (de) 1961-09-13 1964-04-25 Concast Ag Einrichtung zum Kühlen von Stranggußmaterial
CH438594A (de) * 1966-05-31 1967-06-30 Concast Ag Verfahren und Vorrichtung zum Kühlen von Stranggussmaterial
AT314752B (de) 1971-04-30 1974-04-25 Voest Ag Stranggießanlage für Brammen
CH552424A (de) * 1972-09-06 1974-08-15 Concast Ag Verfahren zum steuern der kuehlung eines aus einer durchlaufkokille austretenden stranges und vorrichtung zur durchfuehrung dieses verfahrens.
AT323921B (de) * 1973-07-27 1975-08-11 Voest Ag Kuhleinrichtung für kontinuierlich zu giessende stränge
SE409961B (sv) * 1974-03-18 1979-09-17 Voest Ag Strenggjutningsanleggning for grovplatemnen
JPH05200514A (ja) * 1991-11-29 1993-08-10 Sumitomo Metal Ind Ltd 連続鋳造方法
JPH05220550A (ja) * 1992-02-14 1993-08-31 Tokai Gokin Kogyo Kk 連続鋳造用２次冷却装置
JP3247204B2 (ja) 1993-06-28 2002-01-15 川崎製鉄株式会社 連続鋳造の二次冷却方法
JPH0760420A (ja) * 1993-08-25 1995-03-07 Nippon Steel Corp 冷却装置
DE4425379A1 (de) 1994-07-19 1996-01-25 Schloemann Siemag Ag Vorrichtung zur Verkleinerung des Sprühkegels einer Spritzdüse
JPH1034303A (ja) * 1996-07-26 1998-02-10 Kawasaki Steel Corp 連続鋳造方法
JP3526705B2 (ja) * 1996-09-07 2004-05-17 新日本製鐵株式会社 高炭素鋼の連続鋳造方法
JP3588411B2 (ja) * 1997-09-22 2004-11-10 新日本製鐵株式会社 ステンレス鋼の連続鋳造方法
JP2000005849A (ja) 1998-06-22 2000-01-11 Showa Electric Wire & Cable Co Ltd 連続鋳造装置

Also Published As

Publication number Publication date
CA2670075C (fr) 2010-12-07
DE50105988D1 (de) 2005-06-02
CN1324702A (zh) 2001-12-05
MXPA01000331A (es) 2002-11-04
CA2670075A1 (fr) 2001-07-13
BR0102254B1 (pt) 2009-01-13
US20010020527A1 (en) 2001-09-13
CA2331078A1 (fr) 2001-07-13
JP2001198656A (ja) 2001-07-24
CA2331078C (fr) 2010-05-25
BR0102254A (pt) 2001-09-18
KR20010086314A (ko) 2001-09-10
CN1210122C (zh) 2005-07-13
EP1116534A1 (fr) 2001-07-18
ATE294040T1 (de) 2005-05-15
KR100725034B1 (ko) 2007-06-07
DE10001073A1 (de) 2001-07-19
ES2240243T3 (es) 2005-10-16
US6508298B2 (en) 2003-01-21

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