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 PDFInfo
- 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- Withdrawn
Links
- 239000003380 propellant Substances 0.000 title claims abstract description 12
- 239000000203 mixture Substances 0.000 title claims abstract description 8
- 238000005507 spraying Methods 0.000 title claims abstract description 5
- 229910001208 Crucible steel Inorganic materials 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 title description 11
- 239000002826 coolant Substances 0.000 claims abstract description 17
- 239000000110 cooling liquid Substances 0.000 claims abstract description 6
- 239000004604 Blowing Agent Substances 0.000 claims abstract description 5
- 230000001154 acute effect Effects 0.000 claims abstract description 3
- 239000007921 spray Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000009749 continuous casting Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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)
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)
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)
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)
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)
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 |
-
1982
- 1982-10-22 DE DE19823239042 patent/DE3239042A1/de not_active Withdrawn
-
1983
- 1983-10-04 ES ES1983283291U patent/ES283291Y/es not_active Expired
- 1983-10-13 EP EP83110204A patent/EP0107831A1/fr not_active Withdrawn
- 1983-10-17 US US06/542,424 patent/US4592510A/en not_active Expired - Fee Related
- 1983-10-21 JP JP58196294A patent/JPS59137167A/ja active Pending
- 1983-10-21 CA CA000439436A patent/CA1193066A/fr not_active Expired
Patent Citations (9)
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)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
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 |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19850612 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GROTHE, HORST |