EP0107831A1 - Dispositif pour la pulvérisation d'un mélange d'agents d'entraînement et de refroidissement sur une billette en acier coulé - Google Patents

Dispositif pour la pulvérisation d'un mélange d'agents d'entraînement et de refroidissement sur une billette en acier coulé Download PDF

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Publication number
EP0107831A1
EP0107831A1 EP83110204A EP83110204A EP0107831A1 EP 0107831 A1 EP0107831 A1 EP 0107831A1 EP 83110204 A EP83110204 A EP 83110204A EP 83110204 A EP83110204 A EP 83110204A EP 0107831 A1 EP0107831 A1 EP 0107831A1
Authority
EP
European Patent Office
Prior art keywords
mixing chamber
nozzle opening
nozzle
housing
strand
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.)
Withdrawn
Application number
EP83110204A
Other languages
German (de)
English (en)
Inventor
Horst Grothe
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 Schloemann Siemag AG
Schloemann Siemag 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0107831A1 publication Critical patent/EP0107831A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B22D11/1246—Nozzles; Spray heads

Definitions

  • the invention relates to a device for spraying a blowing agent and coolant mixture onto a steel strand cast in a continuous casting mold, in particular in slab format, consisting of a spray nozzle provided with a coolant and blowing agent supply line.
  • a liquid coolant for example water
  • a gaseous propellant for example air
  • a known cooling device consists of a tubular mixing chamber, to the strand-side opening of which a nozzle housing is connected.
  • An insert tube projects into the other opening of the mixing chamber as a cooling water inflow.
  • the mixing chamber is provided on the side with a connecting piece for compressed air serving as a blowing agent.
  • the nozzle housing is provided with a dome-shaped impact surface in the direction of the slab surface.
  • In front of the baffle there are two prismatic outlet openings for the cooling medium in the wall of the nozzle housing.
  • a swirl disk is arranged in the interior of the nozzle housing for intensive mixing of the cooling medium.
  • the invention is intended to avoid the disadvantages of the known devices.
  • the aim of the invention is in particular a simple, reliable cooling device with which a liquid coolant within a gaseous propellant can be evenly distributed in the finest drops and sprayed in a gapless fan at high speed between adjacent strand guide rollers on a casting strand surface.
  • the invention strives for an improved setting of the mixing ratio and the fan width to the casting material, casting cross section, casting speed and strand crust growth.
  • a coolant guide with an end nozzle opening opens approximately at the apex of a narrow mixing chamber which is open at an angle to the strand, and the propellant is directed at an acute angle from several sides onto the cooling liquid jet emerging from the nozzle opening.
  • Eliminating a baffle on the strand side avoids gaps in the spray fan as well as disadvantageous segregation. Without a special acceleration path for the coolant mixture, the coolant can be sprayed onto the slab surface without gaps and evenly distributed in a compartment corresponding to the slab width. An improvement in operational safety results from the fact that if the propellant supply fails due to the cooling liquid spraying onto the strand surface in a fan-like manner, there is still a sufficient cooling effect.
  • mixing resistors can be arranged in the mixing chamber. By changing the number and position of the mixing resistors designed as pins, it is possible to adapt to changing formats and strand qualities.
  • a particularly simple embodiment of the invention consists in that a nozzle tube is arranged in a housing provided with a propellant gas connection, the nozzle tube and housing having tapered propellant passages tapering conically to the nozzle opening and the mixing chamber being formed by walls of the housing.
  • the angle to one another boundary walls of the mixing chamber can be used for adjustment of the cooling fan to changing B ram wide be formed as an adjustable guide plates. Such an adjustment is advantageously achieved by mounting the guide plates on an axis, the extension of which extends / is achieved approximately through the nozzle opening.
  • a pressure medium cylinder can be provided as a swivel drive.
  • a cooling device for cooling a slab strand 3 guided by support rollers 1, 2 is arranged according to FIG. 1 in the projection of the roller spacing perpendicular to the strand surface.
  • the cooling device consists of a housing 5 provided with a lateral compressed air supply 4, in the interior of which a nozzle pipe 7 connected to a water pipe 6 is arranged such that an annular space 8 is formed. (FIG. 2)
  • the housing 5 and the nozzle tube 7 are tapered conically to the nozzle opening 9, air passages 10 directed towards the outlet region of the nozzle opening 9 being formed between the associated walls.
  • the housing 5 extends with walls 13 beyond the area of the nozzle opening 9, a narrow mixing chamber 11 extending transversely to the slab strand 3 being formed in front of the nozzle opening 9. (Fig. 3)
  • the mixing chamber 11 is delimited on both sides by baffles 12, the edges of which are angular to one another.
  • the nozzle opening 9 is designed as a slot running parallel to the mixing chamber 11.
  • Pins 14 are used in the walls 13, which bridge the mixing chamber 11 as mixing resistors.
  • a narrow mixing chamber is formed which is open at an angle to the strand and from which a spray fan 15 defined by the guide plates 12 is directed precisely to the respective slab width.
  • the guide plates 12 are on an axis 16 attached to the side of the nozzle opening 9 in the housing 5 for change of the spray fan angle pivoted.
  • a pressure medium cylinder 17 is attached to the housing 5 as a swivel drive, the piston 19 acting against the pressure of a spring 18 is connected via its piston rod 20 to a guide piece 21.
  • the guide piece 21 is laterally provided with open grooves 22 for receiving bolts 23 arranged on the guide plates 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
EP83110204A 1982-10-22 1983-10-13 Dispositif pour la pulvérisation d'un mélange d'agents d'entraînement et de refroidissement sur une billette en acier coulé Withdrawn EP0107831A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823239042 DE3239042A1 (de) 1982-10-22 1982-10-22 Vorrichtung zum aufspruehen eines treib- und kuehlmittelgemisches auf eine stahlbramme
DE3239042 1982-10-22

Publications (1)

Publication Number Publication Date
EP0107831A1 true EP0107831A1 (fr) 1984-05-09

Family

ID=6176279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110204A Withdrawn EP0107831A1 (fr) 1982-10-22 1983-10-13 Dispositif pour la pulvérisation d'un mélange d'agents d'entraînement et de refroidissement sur une billette en acier coulé

Country Status (6)

Country Link
US (1) US4592510A (fr)
EP (1) EP0107831A1 (fr)
JP (1) JPS59137167A (fr)
CA (1) CA1193066A (fr)
DE (1) DE3239042A1 (fr)
ES (1) ES283291Y (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT13318U1 (de) * 2009-12-15 2013-10-15 Sms Siemag Ag Düsenvorrichtung und Strangführungsvorrichtung mit der Düsenvorrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE82171T1 (de) * 1988-05-19 1992-11-15 Alusuisse Lonza Services Ag Verfahren und vorrichtung zum kuehlen eines gegenstandes.
US5553783A (en) * 1995-01-09 1996-09-10 Bete Fog Nozzle, Inc. Flat fan spray nozzle
US6264767B1 (en) 1995-06-07 2001-07-24 Ipsco Enterprises Inc. Method of producing martensite-or bainite-rich steel using steckel mill and controlled cooling
US5692682A (en) * 1995-09-08 1997-12-02 Bete Fog Nozzle, Inc. Flat fan spray nozzle
US6374901B1 (en) 1998-07-10 2002-04-23 Ipsco Enterprises Inc. Differential quench method and apparatus
US20050000865A1 (en) * 1998-10-30 2005-01-06 Schulte David L. Screen assemblies and vibratory separators
KR100849260B1 (ko) 2008-01-03 2008-07-29 김호천 급냉 분사장치
US20100108579A1 (en) * 2008-10-30 2010-05-06 Rotex Global. Llc Screening Machine with Segmented Components

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176355A (en) * 1961-06-19 1965-04-06 Concast Ag Method and an apparatus for regulating the cooling of continuous casting material inthe secondary cooling zone
US3567116A (en) * 1968-12-18 1971-03-02 Minnesota Mining & Mfg Atomizing method and apparatus
US3654989A (en) * 1969-05-30 1972-04-11 Concast Ag Apparatus for cooling continuous castings
DE2501293A1 (de) * 1974-01-17 1975-07-24 Voest Ag Weitwurfduese
US3934641A (en) * 1974-03-20 1976-01-27 Fives-Cail Babcock Cooling arrangement for continuously cast metal objects
US4019560A (en) * 1974-09-16 1977-04-26 Mannesmann Aktiengesellschaft Spray cooling of continuously cast ingots
US4250951A (en) * 1978-04-15 1981-02-17 Lechler Gmbh & Co. Kg Device for spraying of a coolant on steel plates during continuous casting
DE3004864A1 (de) * 1980-02-09 1981-08-27 Lechler Gmbh & Co Kg, 7012 Fellbach Vorrichtung zum aufspruehen eines kuehlmittels auf stahlbrammen
EP0082810A1 (fr) * 1981-11-20 1983-06-29 Schweizerische Aluminium Ag Procédé pour le refroidissement d'une billette de coulée pendant la coulée continue

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469392A (en) * 1920-04-20 1923-10-02 Air Reduction Oxyacetylene torch
US2969189A (en) * 1960-01-28 1961-01-24 Jr Harold S Jordan Parallelogram actuated variable area nozzle
US3183664A (en) * 1963-01-28 1965-05-18 Louis V Divone Variable-area rocket nozzle
DE2103362A1 (de) * 1971-01-26 1972-08-17 Kernforschung Gmbh Ges Fuer Vorrichtung zum Mischen verschiedenartiger Flüssigkeiten
BE837884A (fr) * 1976-01-23 1976-05-14 Centre Rech Metallurgique Perfectionnements aux dispositifs de refroidissement des profiles metalliques
JPS5719144A (en) * 1980-07-10 1982-02-01 Nippon Steel Corp Conveying method for high-temperature ingot
GB2096490B (en) * 1981-04-13 1984-12-05 Davey Loewy Ltd Spraying apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176355A (en) * 1961-06-19 1965-04-06 Concast Ag Method and an apparatus for regulating the cooling of continuous casting material inthe secondary cooling zone
US3567116A (en) * 1968-12-18 1971-03-02 Minnesota Mining & Mfg Atomizing method and apparatus
US3654989A (en) * 1969-05-30 1972-04-11 Concast Ag Apparatus for cooling continuous castings
DE2501293A1 (de) * 1974-01-17 1975-07-24 Voest Ag Weitwurfduese
US3934641A (en) * 1974-03-20 1976-01-27 Fives-Cail Babcock Cooling arrangement for continuously cast metal objects
US4019560A (en) * 1974-09-16 1977-04-26 Mannesmann Aktiengesellschaft Spray cooling of continuously cast ingots
US4250951A (en) * 1978-04-15 1981-02-17 Lechler Gmbh & Co. Kg Device for spraying of a coolant on steel plates during continuous casting
DE3004864A1 (de) * 1980-02-09 1981-08-27 Lechler Gmbh & Co Kg, 7012 Fellbach Vorrichtung zum aufspruehen eines kuehlmittels auf stahlbrammen
EP0082810A1 (fr) * 1981-11-20 1983-06-29 Schweizerische Aluminium Ag Procédé pour le refroidissement d'une billette de coulée pendant la coulée continue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT13318U1 (de) * 2009-12-15 2013-10-15 Sms Siemag Ag Düsenvorrichtung und Strangführungsvorrichtung mit der Düsenvorrichtung

Also Published As

Publication number Publication date
US4592510A (en) 1986-06-03
DE3239042A1 (de) 1984-04-26
ES283291Y (es) 1986-07-16
JPS59137167A (ja) 1984-08-07
ES283291U (es) 1985-11-16
CA1193066A (fr) 1985-09-10

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

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17P Request for examination filed

Effective date: 19831014

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL

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

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18W Application withdrawn

Withdrawal date: 19850612

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GROTHE, HORST