EP2698210A1 - Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée - Google Patents

Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée Download PDF

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Publication number
EP2698210A1
EP2698210A1 EP12005888.8A EP12005888A EP2698210A1 EP 2698210 A1 EP2698210 A1 EP 2698210A1 EP 12005888 A EP12005888 A EP 12005888A EP 2698210 A1 EP2698210 A1 EP 2698210A1
Authority
EP
European Patent Office
Prior art keywords
spray nozzle
air
water
mixing chamber
nozzle device
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.)
Granted
Application number
EP12005888.8A
Other languages
German (de)
English (en)
Other versions
EP2698210B1 (fr
Inventor
Louis Kuster
Klaus Von Eynatten
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 Concast AG
Original Assignee
SMS Concast 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
Priority to EP12005888.8A priority Critical patent/EP2698210B1/fr
Application filed by SMS Concast AG filed Critical SMS Concast AG
Priority to US14/620,275 priority patent/US10286446B2/en
Priority to RU2015107120A priority patent/RU2015107120A/ru
Priority to KR20157003906A priority patent/KR20150042208A/ko
Priority to CN201380042934.5A priority patent/CN104520012B/zh
Priority to BR112015003028A priority patent/BR112015003028A2/pt
Priority to PCT/EP2013/066923 priority patent/WO2014026992A2/fr
Publication of EP2698210A1 publication Critical patent/EP2698210A1/fr
Application granted granted Critical
Publication of EP2698210B1 publication Critical patent/EP2698210B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0483—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with gas and liquid jets intersecting in the mixing chamber
    • 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
    • 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
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits

Definitions

  • the invention relates to a spray nozzle device, in particular for spraying a casting strand, comprising a mixing body having a diffuser-like mixing chamber, which is provided with an air inlet, a water inlet and a nozzle outlet arranged on the side opposite the air inlet, through which an air / water mixture emerges.
  • Spray nozzles of this type are known to be used for cooling a casting strand during casting.
  • the aim is to achieve as uniform a cooling effect as possible in order to prevent cracks in the hot glasstrack during the cooling process.
  • the efforts to construct the spray nozzle so that the discharged cooling jet is structurally homogeneous.
  • the required cooling effect is different from case to case, both for procedural reasons as well as due to the dimensions and / or the geometry of the deducted format.
  • the conditions of use of the spray nozzle with respect to the air and / or water pressure or the air andlor water flow are variable.
  • a spray nozzle arrangement of this kind is in the EP-0 161 307 revealed. It consists of a Vorvernebelungskopf and a nozzle mouth piece with its own mixing chamber, which is provided with a discharge opening for narrow fan-shaped spray patterns.
  • the purpose of the arrangement is to produce in such spray patterns a spray jet which has a high degree of nebulization and contains liquid droplets of uniform size over the entire length and width.
  • the invention has for its object to provide a spray nozzle of the type mentioned, which ensures a high degree of nebulization and high uniformity of the spray regardless of the casting process or format of the product to be cooled. Furthermore, this should also be ensured regardless of the set media pressures.
  • the air inlet has a region projecting into the mixing chamber and is provided there with at least one air outlet bore directed approximately transversely to the longitudinal axis, while the water inlet is through at least one near the tip of the air inlet approximately transverse to the longitudinal axis directed bore ,
  • this arrangement has the advantage that in her the air flow or the air pressure and the water flow or the water pressure do not influence each other to any appreciable extent, so that in procedural or format-related changes of these sizes of votes from the spray nozzle Cooling beam remains stable with respect to the degree of atomization and the uniformity of the cooling jet.
  • the invention further provides that the air inlet of the mixing body is formed by a diaphragm projecting into the mixing chamber, which is provided in a plane transverse to its longitudinal axis with at least one circumferentially distributed radial outlet holes. This simplifies the manufacture, assembly and maintenance of the spray nozzle.
  • the region of the air inlet nozzle projecting into the mixing chamber has an outer diameter of less than half the inner diameter of the mixing chamber.
  • the air inlet nozzle can also be provided with a directed in the axial direction of the mixing chamber air outlet bore.
  • the operation of the spray nozzle advantageous if its mixing chamber is cylindrical and has a length of preferably twice the inner diameter.
  • the invention also provides that the mixing body has a replaceable nozzle head with an outlet opening for the air / water mixture, the geometry of which can be fixed according to the respectively required spray pattern. In this way, the nozzle can be easily adapted to variable operating conditions.
  • the spray nozzle device according to Fig. 1 to Fig. 4 is used to spray a cast strand with an air / water mixture to cool it during casting.
  • the mixing body 1 has a mixing chamber 2 which is provided with an air inlet 3, a water inlet 4 and a nozzle outlet 5.
  • the mixing chamber 2 of the mixing body 1 is cylindrical. Its length is about twice the inner diameter of the mixing chamber.
  • the air inlet 3 is arranged in an air inlet nozzle 6, the tip 7 of which protrudes into the upper region of the mixing chamber.
  • the air inlet nozzle 6 is aligned coaxially with the mixing chamber 2, and its outer diameter is smaller there than half the inner diameter of the mixing chamber. In this area, it is provided with air outlet bores 9 which extend radially from the latter approximately transversely to the longitudinal axis of the mixing chamber and which are distributed uniformly circumferentially in a plane transverse to the longitudinal axis.
  • the water inlet 4 opens into the mixing chamber 2 near the tip 7 of the air inlet 3 with a directed transversely to the longitudinal axis of the water outlet hole 11 whose distance from the tip 7 is dimensioned so that the water jet flowing from it does not affect the air outlet holes 9.
  • the described spray nozzle is equipped with only one water outlet hole. In principle, it can also be provided with a plurality of circumferentially distributed water outlet holes.
  • the water inlet 4 is formed by an approximately parallel to the longitudinal axis of the mixing body 1 extending bore 11 'and through this transverse water outlet hole 11.
  • a replaceable filter 19 and subsequently a diaphragm 4' included and also it is provided with an overbore 11 ", which is formed as an extension starting from the transverse water outlet bore 11 and for calming the guided into the water outlet hole 11 Water serves.
  • the radial air outlet holes 9 are designed with a slight angle to the vertical plane, wherein the inclination angle in a range of +/- max. 15 ° can vary. Moreover, they could also be oriented radially at least approximately tangentially, whereby a turbulence of the flowing into the mixing chamber water jet is generated, which brings a uniformly fine-structured nebulization of the air / water mixture with it.
  • the cylindrically shaped mixing body 1 has in extension of the mixing chamber 2 a likewise cylindrical projection 14, on whose End of a replaceable nozzle head 15 with an air / water mixture outlet opening 16 is mounted.
  • the compound of the nozzle head 15 on the mixing body 1 is arranged in the projection 14 of the mixing body.
  • centering means 17 for positioning the nozzle head 15 to the mixing body 1 are indicated on the lower end face of the cylindrical projection 14.
  • an orifice 4 'for throttling the supplied air or the water is provided in each case.
  • Both the air outlet holes and the water outlet holes can be aligned instead of radially at least approximately tangentially.
  • An extension tube could also be provided between the mixing body 1 and the nozzle outlet 5, for example if smaller formats of strands are cast.
  • the graph shows the water pressure (bar) in the x-axis and the water and air flow (l / min or m 3 / h) in the y-axis.
  • the air flow course 1A-2A and the water flow course 1B-2B are at a constant air pressure of 2 bar or 3 bar and a constant air flow of 6.0 m 3 / h and 7.8 m 3 / h shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Continuous Casting (AREA)
EP12005888.8A 2012-08-15 2012-08-15 Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée Active EP2698210B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP12005888.8A EP2698210B1 (fr) 2012-08-15 2012-08-15 Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée
RU2015107120A RU2015107120A (ru) 2012-08-15 2013-08-13 Конструкция распылительного сопла, в частности, для обрызгивания литой непрерывной заготовки
KR20157003906A KR20150042208A (ko) 2012-08-15 2013-08-13 분사 노즐 장치, 특히 캐스트 스트랜드 분사용 분사 노즐 장치
CN201380042934.5A CN104520012B (zh) 2012-08-15 2013-08-13 尤其用于对铸坯进行喷洒的喷射喷嘴装置
US14/620,275 US10286446B2 (en) 2012-08-15 2013-08-13 Spray nozzle device, in particular for spraying a cast strand
BR112015003028A BR112015003028A2 (pt) 2012-08-15 2013-08-13 dispositivo de bocal spray, em particular para a aspersão de barras longas
PCT/EP2013/066923 WO2014026992A2 (fr) 2012-08-15 2013-08-13 Dispositif à buse de pulvérisation, destiné en particulier à asperger une barre de coulée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12005888.8A EP2698210B1 (fr) 2012-08-15 2012-08-15 Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée

Publications (2)

Publication Number Publication Date
EP2698210A1 true EP2698210A1 (fr) 2014-02-19
EP2698210B1 EP2698210B1 (fr) 2020-01-01

Family

ID=46888867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12005888.8A Active EP2698210B1 (fr) 2012-08-15 2012-08-15 Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée

Country Status (7)

Country Link
US (1) US10286446B2 (fr)
EP (1) EP2698210B1 (fr)
KR (1) KR20150042208A (fr)
CN (1) CN104520012B (fr)
BR (1) BR112015003028A2 (fr)
RU (1) RU2015107120A (fr)
WO (1) WO2014026992A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4292716A1 (fr) 2022-06-15 2023-12-20 SMS Concast AG Procédé de fabrication d'un dispositif de buse de pulvérisation, en particulier servant à la pulvérisation d'un brin de coulée lors de la coulée des produits métalliques, ainsi que dispositif de buse de pulvérisation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2698210B1 (fr) 2012-08-15 2020-01-01 SMS Concast AG Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée
CN105413937A (zh) * 2014-09-16 2016-03-23 上海百芬环境科技有限公司 微型雾化结构
CN106862511B (zh) * 2017-03-06 2018-12-04 河钢股份有限公司邯郸分公司 连铸结晶器足辊过滤喷头
CN107649879A (zh) * 2017-11-20 2018-02-02 湖州织里川蜀机械有限公司 一种新型双头钻孔攻丝机
CN107855506A (zh) * 2017-11-27 2018-03-30 刘洋 用于轮毂的冷却设备
CN112098521A (zh) * 2020-09-21 2020-12-18 广东韶钢松山股份有限公司 一种喷嘴堵塞点检测方法、喷嘴维护方法及装置

Citations (8)

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Publication number Priority date Publication date Assignee Title
GB2081606A (en) * 1980-08-11 1982-02-24 Spraying Systems Co Atomizing nozzle
EP0161307A1 (fr) 1983-11-07 1985-11-21 Spraying Systems Co Ajutage pour jet pulverise en forme d'eventail.
DE19505647A1 (de) * 1995-02-18 1996-08-22 Lechler Gmbh & Co Kg Anordnung zum Versprühen eines Zweistoffgemisches
DE19841401A1 (de) * 1998-09-10 2000-04-06 Lechler Gmbh & Co Kg Zweistoff-Flachstrahldüse
EP1243343A1 (fr) * 2001-03-22 2002-09-25 Lechler GmbH & Co.KG Buse de vaporisation à deux fluides
EP1356868A1 (fr) * 2002-04-18 2003-10-29 Lechler GmbH & Co.KG Buse binaire avec un insert changeables
JP2005131486A (ja) * 2003-10-29 2005-05-26 Kyoritsu Gokin Co Ltd 噴霧ノズルおよび噴霧方法
EP1767277A2 (fr) * 2005-09-23 2007-03-28 Lechler GmbH Buse à jet conique plein

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US3796377A (en) * 1972-06-01 1974-03-12 Federal Investment Corp Combination aerator and shower nozzle
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US4343434A (en) * 1980-04-28 1982-08-10 Spraying Systems Company Air efficient atomizing spray nozzle
JPS5794361A (en) * 1980-12-03 1982-06-11 Yoshio Koyama Method and device for minute particle spray
US4793554A (en) * 1987-07-16 1988-12-27 Kraus Edmund J Device for making artificial snow
DE4120613A1 (de) * 1991-06-20 1992-03-05 Suesse Harald Selbstregulierender hochdrucktrennstrahlbeschleuniger
US20010043888A1 (en) * 1999-08-26 2001-11-22 Ito Jackson I. Fluid atomization process
AU6795200A (en) * 1999-08-26 2001-03-19 Exxonmobil Research And Engineering Company Superheating atomizing steam with hot fcc feed oil
CN1868601A (zh) * 2005-05-23 2006-11-29 谢燕生 一种超细水雾射流喷枪
EP2071258A1 (fr) * 2007-12-14 2009-06-17 Bächler Top Track AG Buse de canon à neige, utilisation d'une buse de canon à neige, canon à neige, canon à ventilateur et procédé de production de cristaux de neige et de neige artificielle
EP2226139B1 (fr) 2009-03-07 2016-09-28 SMS Concast AG Procédé de coulée en continu et dispositif de production d'ébauches de profilés, notamment des ébauches de profilés en T doubles
EP2263816A1 (fr) 2009-06-03 2010-12-22 Concast Ag Procédé et système pour guider et redresser une brame dans une machine à coulée continue pour des produits rondes de forte section
CN202097052U (zh) * 2011-03-31 2012-01-04 文山 一种可调水气混合节水器
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EP2698210B1 (fr) 2012-08-15 2020-01-01 SMS Concast AG Installation de pulvérisation, en particulier pour la pulvérisation d'un flux de coulée

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081606A (en) * 1980-08-11 1982-02-24 Spraying Systems Co Atomizing nozzle
EP0161307A1 (fr) 1983-11-07 1985-11-21 Spraying Systems Co Ajutage pour jet pulverise en forme d'eventail.
DE19505647A1 (de) * 1995-02-18 1996-08-22 Lechler Gmbh & Co Kg Anordnung zum Versprühen eines Zweistoffgemisches
DE19841401A1 (de) * 1998-09-10 2000-04-06 Lechler Gmbh & Co Kg Zweistoff-Flachstrahldüse
EP1243343A1 (fr) * 2001-03-22 2002-09-25 Lechler GmbH & Co.KG Buse de vaporisation à deux fluides
EP1356868A1 (fr) * 2002-04-18 2003-10-29 Lechler GmbH & Co.KG Buse binaire avec un insert changeables
JP2005131486A (ja) * 2003-10-29 2005-05-26 Kyoritsu Gokin Co Ltd 噴霧ノズルおよび噴霧方法
EP1767277A2 (fr) * 2005-09-23 2007-03-28 Lechler GmbH Buse à jet conique plein

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LECHLER GMBH: "Düsen und Systeme für die Hütten- und Walzwerktechnik", March 2012 (2012-03-01), XP002687083, Retrieved from the Internet <URL:https://shop.lechler.de/is-bin/intershop.static/WFS/LechlerDE-shop-Site/LechlerDE-Ship/de_DE/PDF/05_service_support/huettentechnik/broschueren/deutsch/prospekt_image_huettentechnik_0312.pdf> [retrieved on 20121113] *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4292716A1 (fr) 2022-06-15 2023-12-20 SMS Concast AG Procédé de fabrication d'un dispositif de buse de pulvérisation, en particulier servant à la pulvérisation d'un brin de coulée lors de la coulée des produits métalliques, ainsi que dispositif de buse de pulvérisation

Also Published As

Publication number Publication date
RU2015107120A (ru) 2016-10-10
WO2014026992A3 (fr) 2014-04-10
CN104520012A (zh) 2015-04-15
US10286446B2 (en) 2019-05-14
BR112015003028A2 (pt) 2017-07-04
CN104520012B (zh) 2021-03-30
WO2014026992A2 (fr) 2014-02-20
KR20150042208A (ko) 2015-04-20
US20150231694A1 (en) 2015-08-20
EP2698210B1 (fr) 2020-01-01

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