EP1243343B1 - Dual fluid spray nozzle - Google Patents
Dual fluid spray nozzle Download PDFInfo
- Publication number
- EP1243343B1 EP1243343B1 EP01106427A EP01106427A EP1243343B1 EP 1243343 B1 EP1243343 B1 EP 1243343B1 EP 01106427 A EP01106427 A EP 01106427A EP 01106427 A EP01106427 A EP 01106427A EP 1243343 B1 EP1243343 B1 EP 1243343B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray nozzle
- mouthpiece
- mixing chamber
- accordance
- outlet
- 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
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Classifications
-
- 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
- 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
- B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
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- 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
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3447—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cylinder having the same axis as the outlet
Definitions
- the invention relates to a two-component spray nozzle, in particular for atomizing low-viscosity liquids for cooling in continuous casting plants, with a housing with a mixing chamber and with a connection channel for each Supply of a gaseous and a liquid medium, and with one downstream of the mixing chamber in the flow direction Mouthpiece with an axial cylindrical bore and one rotationally symmetrical outlet opening.
- the present invention is therefore based on the object to design a two-substance spray nozzle of the type mentioned at the outset, that the nozzles become insensitive to clogging and with low air consumption and a stable spray angle throughout Control range can be used. This is supposed to be the case with modern Continuous casting plants broader product range for the Manufacture of quality steels to be covered.
- the two-substance spray nozzles should each correspond to the width of the manufactured Products are adaptable without causing overcooling.
- the invention is that a swirl insert is arranged in the bore of the mouthpiece and the outlet opening centrally at the bottom of the mouthpiece a diameter is provided which is at most half corresponds to the diameter of the bore of the mouthpiece.
- the outlet opening can expand to an exit cone, the exit angle of which desired spray angle is adjusted.
- the exit opening surrounding part of the bottom of the mouthpiece can be flat and be aligned perpendicular to the axis of the bore.
- the outlet opening surrounding part of the ground is rounded.
- the swirl insert can be drilled or be milled and with multiple holes or on the circumference Arranged milled be provided that evenly over the scope is distributed. It has been shown that with one such twist use very good results can be achieved and that, as previously mentioned, the separation in itself feared of the two-substance mixture has not occurred.
- there is a twist insert in a further development of the invention have been provided with an axially running center hole, which has an input and output chamfer. This middle one Through opening, which is attached centrally, affects the distribution symmetry is positive.
- the distance between the bottom of the mouthpiece and the swirl insert each chosen so that a homogeneous flow in front of the outlet opening is achieved, which is no longer influenced by the individual beams emerging from the holes.
- the mixing chamber can be cylindrical with perpendicular connection channels are formed, the mouthpiece as a screw-in sleeve is formed, which immediately downstream of the mixing chamber is.
- the mixing chamber in this way train that the connection channel for the liquid over a nozzle opens into the mixing chamber on top of this nozzle opposite wall with a recess as a rebound surface for the liquid jet coming from the nozzle is, the air connection in the axial direction of the mixing chamber and runs perpendicular to the axis of the liquid jet.
- an extension tube can be provided like that in other known types (DE 1.95 05 647) also the Case is.
- the mouthpiece can be a union nut be attached to the extension tube.
- Fig. 1 shows a two-component spray nozzle, in the air and Water mixed to create a spray become.
- the two-component spray nozzle according to FIGS. 1 and 2 has a housing 1 in which a cylindrical Mixing chamber 2 with a coaxially arranged air supply duct 3 and on the other hand a water supply channel 4 with a transverse bore 5 to the mixing chamber 2 is provided.
- the liquid in In the present case water, therefore occurs in the form of a jet perpendicular to the flow direction through the feed channel 3 introduced air into the mixing chamber 2.
- the water jet it is torn open and air and water are intimately mixed.
- the lower end with an internal thread is provided in the mixing chamber 2, the lower end with an internal thread is provided is a screw-in sleeve Mouthpiece 6 screwed in, that with respect to the housing 1 a sealing ring 7 is sealed.
- the mouthpiece 6 is with a cylindrical arranged coaxially to the mixing chamber 2 Provide bore 8, in the bottom 8a a circular outlet opening 9 is arranged centrally, the diameter but smaller than the diameter of the bore 8 and at most makes up half of this diameter.
- the exit opening 9 goes in the direction of flow outside in an expanding Exit cone 10, the one in the embodiment Has angle ⁇ of about 140 °. This angle is designed to generate a spray angle of 90 °.
- a swirl insert 11 is provided, which in the Bore 8 is used for example with a press fit.
- This Swirl insert 11 can according to FIGS. 5 and 6 by drilling be manufactured in such a way that a central central bore 12, which is chamfered at the entrance and at the exit from several oblique bores 13 evenly distributed around the circumference is surrounded, which is at a certain angle ⁇ to the central axis 14 of the swirl insert, which with the central axis of the Bore 8 and the mixing chamber 2 of the connecting duct 3 coincide, are arranged.
- the angle ⁇ is in the embodiment 45 °, but it can also vary to a certain extent become.
- Fig. 2 shows two mounting holes 15 in the housing 1, which run parallel to the axis 14 of the mixing chamber 2. With their help, the housing 1 can be attached to a bracket assemble.
- Fig. 3 shows a modified embodiment with a housing 20, that with two screwed connections 21 and 22 is provided, the diameter of which is in the arrows 23 and 24 indicated flow direction each narrowed.
- Both inserts 21 and 22 open out with their nozzle-like outlet openings 25 and 26 in a mixing chamber 27 which is coaxial runs to the screw terminal 21 and is approximately cylindrical is.
- the wall of the nozzle 26 opposite Mixing chamber 27 is provided with a recess 28, that as a rebound surface for those entering in the direction of arrow 24 Water jet serves and the water jet through the Impact tears open, so that the inflowing in the direction of arrow 23 Air the desired even mixture between Air and water can cause.
- Such housing 20 with a as described trained mixing chamber are in the DE 196 04 902 A1.
- An extension tube 29 connects to the mixing chamber 27 at the bottom with an attached sleeve 30 with is provided with an external thread, which in turn serves to to take a union nut 31, with the help of a mouthpiece 32 is held at the lower end of the tube.
- the mouthpiece 32 is designed analogously to the mouthpiece 6 of FIG. 1.
- the hole 8 of the mouthpiece 32, the swirl insert 11 and the outlet opening 9 are therefore provided with the same reference numbers Service.
- the mode of operation of the two-component spray nozzle arrangement 3 corresponds with respect to that from the Mouthpiece 32 emerging full cone spray jet that of Two-substance spray nozzle of Fig. 1st
- FIG. 5 A drilled swirl insert (Fig. 5) or a milled swirl insert (Fig. 7) shown. Conceivable it would also be to provide an X-twist insert known per se, that has a very slight slope.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Continuous Casting (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
Description
Die Erfindung betrifft eine Zweistoffsprühdüse, insbesondere zum Zerstäuben niedrigviskoser Flüssigkeiten für die Kühlung in Stranggussanlagen, mit einem Gehäuse mit einer Mischkammer und mit je einem in diese mündenden Anschlusskanal für die Zufuhr eines gasförmigen und eines flüssigen Mediums, sowie mit einem der Mischkammer in Strömungsrichtung nachgeschalteten Mundstück mit einer axialen zylindrischen Bohrung und einer rotationssymmetrischen Austrittsöffnung.The invention relates to a two-component spray nozzle, in particular for atomizing low-viscosity liquids for cooling in continuous casting plants, with a housing with a mixing chamber and with a connection channel for each Supply of a gaseous and a liquid medium, and with one downstream of the mixing chamber in the flow direction Mouthpiece with an axial cylindrical bore and one rotationally symmetrical outlet opening.
In Stranggussanlagen wird für die Herstellung von Stahlknüppeln oder Stahlvorblöcken eine Zweistoffsekundärkühlung vorgesehen, die vorwiegend mit Zweistoffvollkegeldüsen mit innerer Mischung der Medien erreicht wird. So sind für diesen Zweck beispielsweise Pneumatikzerstäuberdüsen der Baureihe 138.XXX bekannt, die von der Anmelderin vertrieben werden (Lechler-Katalog "Die ganze Welt der Düsentechnik" Edition 921, Druckvermerk "Kat./10.92/D, E, F, GB/5000", Seite 1.28). Diese Vollkegel-Pneumatikzerstäuberdüsen, die nach dem Flüssigkeitsdruckprinzip arbeiten - der Luftdruck wird konstant gehalten - sind mit einer zylindrischen Mischkammer versehen, in die axial der Luftstrom einmündet und einen quer dazu in die Mischkammer geführten Flüssigkeits(Wasser-)strahl in feine Tropfen zerreißt. Aus der Mischkammer wird das Zweistoffgemisch dann durch einen Ringkanal zu einer ebenfalls ringförmigen Austrittsöffnung geführt, die durch eine am unteren Ende des aus der Mischkammer kommenden Ringraumes angeordnete Öffnung größeren Durchmessers als der Ringraum und durch einen zentral in dieser Öffnung gehaltenen Prallteller gebildet wird. Der Prallteller ist dabei über einen zentralen Schaft in einem mit der Austrittsöffnung versehenen Mundstück gehalten und der ringförmige Austrittskanal wird innen vom Schaft des Pralltellers und außen von der Wandung des Mundstückes gebildet. Das Zweistoffgemisch, das vor dem Austrittskanal in der Mischkammer schon weitgehend homogen gebildet ist, trifft dann bei der axialen Durchströmung des Mundstückes auf den Prallteller auf und wird kegelförmig nach außen in der Form eines Vollkegelsprühstrahles abgegeben.In continuous casting plants is used for the production of steel billets or two-material secondary cooling is provided for steel the predominantly with two-substance full cone nozzles with inner Mix of media is achieved. So are for this Purpose, for example, pneumatic atomizer nozzles of the series 138.XXX known, which are sold by the applicant (Lechler catalog "The whole world of nozzle technology" Edition 921, printed note "Kat./10.92/D, E, F, GB / 5000", page 1.28). These full cone pneumatic atomizer nozzles, which operate on the liquid pressure principle work - the air pressure becomes constant held - are provided with a cylindrical mixing chamber, into which the airflow flows axially and one transversely to it the mixing chamber guided liquid (water) jet into fine Tear drops. The mixing chamber becomes the two-component mixture then through an annular channel to an also annular Exit opening guided by one at the bottom End of the annular space coming from the mixing chamber Opening larger diameter than the annulus and through a baffle plate held centrally in this opening becomes. The baffle plate is over a central shaft held in a mouthpiece provided with the outlet opening and the annular exit channel is inside of the shaft of the baffle plate and outside of the wall of the mouthpiece educated. The two-substance mixture that is in front of the outlet channel the mixing chamber is already largely homogeneous then with the axial flow through the mouthpiece on the Baffle plate on and becomes conical outward in shape a full cone spray.
Bei solchen Pneumatikzerstäuberdüsen ist die eigentliche ringförmige Austrittsöffnung zwischen dem Außenrand des Pralltellers und der Austrittsöffnung des Mundstückes nur als ein sehr schmaler Ring mit einer Breite in der Größenordnung von 0,7mm ausgebildet. Düsen dieser Art neigen daher am Austritt zu Verstopfungen, wenn die Betriebsmedien, d.h. also Luft und Wasser nicht sehr rein gehalten werden können, was bei der Stahlherstellung der Fall ist. Düsen dieser Bauart verlangen auch sehr kleine Fertigungstoleranzen und sie zeigen auch über den ganzen Druckbereich, d.h. also bei verändertem Flüssigkeitsdruck, eine starke Änderung des Sprühwinkels, wobei auch der Vollkegelcharakter nicht über den ganzen Regelbereich beibehalten werden kann.With such pneumatic atomizing nozzles, the real one is annular outlet opening between the outer edge of the Baffle plates and the outlet opening of the mouthpiece only as a very narrow ring with a width of the order of magnitude of 0.7mm. This type of nozzle therefore tends to exit blockages if the operating media, i.e. so Air and water cannot be kept very clean, what is the case with steel production. Nozzles of this type also require very small manufacturing tolerances and they show also over the entire pressure range, i.e. in other words, if something has changed Fluid pressure, a sharp change in spray angle, the full cone character is not over the whole Control range can be maintained.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Zweistoffsprühdüse der eingangs genannten Art so auszubilden, dass die Düsen verstopfungsunempfindlich werden und bei geringem Luftverbrauch und stabilem Spritzwinkel im gesamten Regelbereich einsetzbar sind. Dadurch soll das bei modernen Stranggussanlagen breitere Produktspektrum für die Herstellung von Qualitätsstählen abgedeckt werden. Die Zweistoffsprühdüsen sollen jeweils an die Breite der herzustellenden Produkte anpassbar sein, ohne eine Überkühlung zu bewirken.The present invention is therefore based on the object to design a two-substance spray nozzle of the type mentioned at the outset, that the nozzles become insensitive to clogging and with low air consumption and a stable spray angle throughout Control range can be used. This is supposed to be the case with modern Continuous casting plants broader product range for the Manufacture of quality steels to be covered. The two-substance spray nozzles should each correspond to the width of the manufactured Products are adaptable without causing overcooling.
Zur Lösung dieser Aufgabe besteht die Erfindung darin, dass in der Bohrung des Mundstückes ein Dralleinsatz angeordnet und die Austrittsöffnung zentral am Boden des Mundstückes mit einem Durchmesser vorgesehen ist, der höchstens der Hälfte des Durchmessers der Bohrung des Mundstückes entspricht.To achieve this object, the invention is that a swirl insert is arranged in the bore of the mouthpiece and the outlet opening centrally at the bottom of the mouthpiece a diameter is provided which is at most half corresponds to the diameter of the bore of the mouthpiece.
Diese Ausgestaltung erlaubt die Anordnung einer relativ großen Austrittsöffnung, die verstopfungsunempfindlich ist. Es hat sich dabei erstaunlicherweise gezeigt, dass der im Mundstück angeordnete Dralleinsatz nicht, was an sich zu befürchten war, in der Art eines Tropfenabscheiders wirkt und die an sich gewünschte innige und homogene Vermischung von Flüssigkeit und Luft wieder zunichte macht. Der Dralleinsatz sorgt aber dafür, dass das Gasflüssigkeitsgemisch vor dem Erreichen der Austrittsöffnung in Rotation versetzt wird, so dass es dann unter Druck kegelförmig aus dem Mundstück austreten kann. Es hat sich gezeigt, dass mit dieser Ausführung der Sprühwinkel wesentlich unabhängiger von dem variierbaren Flüssigkeitsdruck wird. Die Düse ist gegen Verschmutzungen auch unempfindlich.This configuration allows the arrangement of a relatively large one Outlet that is not sensitive to clogging. It has surprisingly shown that in the mouthpiece ordered swirl insert not what to fear in itself was in the manner of a droplet separator and that desired intimate and homogeneous mixing of liquid and destroys air again. The swirl insert ensures but that the gas-liquid mixture before reaching the outlet opening is rotated so that it then emerge conically from the mouthpiece under pressure can. It has been shown that with this version of the Spray angle much more independent of the variable Fluid pressure will. The nozzle is against dirt also insensitive.
In Weiterbildung der Erfindung kann sich die Austrittsöffnung zu einem Austrittskonus erweitern, dessen Austrittswinkel dem gewünschten Sprühwinkel angepasst ist. Der die Austrittsöffnung umgebende Teil des Bodens des Mundstücks kann dabei eben und rechtwinklig zur Achse der Bohrung ausgerichtet sein. Möglich ist es allerdings auch, dass der die Austrittsöffnung umgebende Teil des Bodens ausgerundet ist. In a further development of the invention, the outlet opening can expand to an exit cone, the exit angle of which desired spray angle is adjusted. The exit opening surrounding part of the bottom of the mouthpiece can be flat and be aligned perpendicular to the axis of the bore. However, it is also possible that the outlet opening surrounding part of the ground is rounded.
In Weiterbildung der Erfindung kann der Dralleinsatz gebohrt oder gefräst sein und mit mehreren Bohrungen oder am Umfang angeordneten Einfräsungen versehen sein, die gleichmäßig über den Umfang verteilt sind. Es hat sich gezeigt, dass mit einem solchen Dralleinsatz sehr gute Ergebnisse erzielbar sind und dass, wie vorher schon erwähnt, die an sich befürchtete Entmischung des Zweistoffgemisches nicht eingetreten ist. Dabei ist in Weiterbildung der Erfindung der Dralleinsatz auch noch mit einer axial verlaufenden Mittelbohrung versehen worden, die eine Ein- und Ausgangsfase aufweist. Diese mittlere Durchgangsöffnung, die zentrisch angebracht ist, beeinflusst die Verteilungssymmetrie positiv. Dabei soll in Weiterbildung der Erfindung zweckmäßig darauf geachtet werden, dass die Summe der freien Querschnitte aller im Dralleinsatz vorgesehenen Bohrungen oder die Summe der freien Durchtrittsquerschnitte der Mittelbohrung und der außen eingefrästen Durchgangsschlitze größer sind, als der Durchtrittsquerschnitt der Austrittsöffnung des Mundstückes. Diese Ausgestaltung führt zur Rotation des Zweistoffgemisches vor der Austrittsöffnung und gewährleistet die Bildung des gewünschten Vollkegelstrahles.In a further development of the invention, the swirl insert can be drilled or be milled and with multiple holes or on the circumference Arranged milled be provided that evenly over the scope is distributed. It has been shown that with one such twist use very good results can be achieved and that, as previously mentioned, the separation in itself feared of the two-substance mixture has not occurred. there is a twist insert in a further development of the invention have been provided with an axially running center hole, which has an input and output chamfer. This middle one Through opening, which is attached centrally, affects the distribution symmetry is positive. Thereby should be in continuing education the invention should be taken care that the Sum of the free cross-sections of all provided in the swirl insert Holes or the sum of the free passage cross-sections the center hole and the milled through slots are larger than the passage cross section of the Outlet opening of the mouthpiece. This configuration leads for rotating the two-substance mixture in front of the outlet opening and ensures the formation of the desired full cone beam.
In Ausgestaltung der Erfindung wird dabei der Abstand zwischen dem Boden des Mundstückes und dem Dralleinsatz jeweils so gewählt, dass eine homogene Strömung vor der Austrittsöffnung erreicht wird, die nicht mehr die Einflüsse der durch die Bohrungen tretenden Einzelstrahlen aufweist.In an embodiment of the invention, the distance between the bottom of the mouthpiece and the swirl insert each chosen so that a homogeneous flow in front of the outlet opening is achieved, which is no longer influenced by the individual beams emerging from the holes.
In Weiterbildung der Erfindung kann die Mischkammer zylindrisch mit senkrecht zueinander stehenden Anschlusskanälen ausgebildet werden, wobei das Mundstück als eine Einschraubhülse ausgebildet ist, die der Mischkammer unmittelbar nachgeschaltet ist. Es ist aber auch möglich, die Mischkammer so auszubilden, dass der Anschlusskanal für die Flüssigkeit über eine Düse in die Mischkammer mündet, die auf der dieser Düse gegenüberliegenden Wand mit einer Vertiefung als Rückprallfläche für den von der Düse kommenden Flüssigkeitsstrahl versehen ist, wobei der Luftanschluss in Achsrichtung der Mischkammer und senkrecht zur Achse des Flüssigkeitsstrahles verläuft. Bei dieser Ausführungsform kann zwischen Mundstück und Mischkammer ein Verlängerungsrohr vorgesehen werden, wie das bei anderen bekannten Bauarten (DE 1.95 05 647) ebenfalls der Fall ist. Das Mundstück kann dabei über eine Überwurfmutter am Verlängerungsrohr befestigt werden.In a further development of the invention, the mixing chamber can be cylindrical with perpendicular connection channels are formed, the mouthpiece as a screw-in sleeve is formed, which immediately downstream of the mixing chamber is. However, it is also possible to use the mixing chamber in this way train that the connection channel for the liquid over a nozzle opens into the mixing chamber on top of this nozzle opposite wall with a recess as a rebound surface for the liquid jet coming from the nozzle is, the air connection in the axial direction of the mixing chamber and runs perpendicular to the axis of the liquid jet. In this embodiment, between the mouthpiece and Mixing chamber an extension tube can be provided like that in other known types (DE 1.95 05 647) also the Case is. The mouthpiece can be a union nut be attached to the extension tube.
Die Erfindung ist anhand von zwei Ausführungsbeispielen in der Zeichnung dargestellt und wird im folgenden erläutert. Es zeigen.
- Fig. 1
- die schematische Darstellung eines Längsschnittes durch eine Zweistoffsprühdüse nach der Erfindung,
- Fig. 2
- den Schnitt durch das Gehäuse und die Mischkammer der Zweistoffsprühdüse nach Fig. 1 in Richtung der Schnittlinie II-II gesehen,
- Fig. 3
- eine andere Ausführungsform einer Zweistoffsprühdüse nach der Erfindung, bei der an das Gehäuse mit der Mischkammer ein Verlängerungsrohr mit dem Mundstück angesetzt ist,
- Fig. 4
- die Seitenansicht des Gehäuses der Zweistoffsprühdüse nach Fig. 3 mit dem Luft- und Wasseranschluss,
- Fig. 5
- die Draufsicht auf einen gebohrten Dralleinsatz, wie er in den Mundstücken der Fig. 1 und 3 vorgesehen ist,
- Fig. 6
- den Teilschnitt durch den Dralleinsatz der Fig. 5 in Richtung der Schnittlinie VI-VI,
- Fig. 7
- die Draufsicht auf einen Dralleinsatz mit am Umfang eingefrästen drallerzeugenden Nuten und
- Fig. 8
- die Seitenansicht des Dralleinsatzes der Fig. 7.
- Fig. 1
- the schematic representation of a longitudinal section through a two-component spray nozzle according to the invention,
- Fig. 2
- seen the section through the housing and the mixing chamber of the two-substance spray nozzle according to FIG. 1 in the direction of section line II-II,
- Fig. 3
- another embodiment of a two-component spray nozzle according to the invention, in which an extension tube with the mouthpiece is attached to the housing with the mixing chamber,
- Fig. 4
- the side view of the housing of the two-substance spray nozzle according to FIG. 3 with the air and water connection,
- Fig. 5
- the top view of a drilled swirl insert, as provided in the mouthpieces of FIGS. 1 and 3,
- Fig. 6
- 5 in the direction of section line VI-VI,
- Fig. 7
- the top view of a swirl insert with milled swirl-generating grooves and
- Fig. 8
- the side view of the swirl insert of FIG .. 7
Die Fig. 1 zeigt eine Zweistoffsprühdüse, bei der Luft und
Wasser zur Erzeugung eines Sprühstrahles miteinander vermischt
werden. Die Zweistoffsprühdüse nach Fig. 1 und 2 besitzt
ein Gehäuse 1, in dem zum einen eine zylindrische
Mischkammer 2 mit einem koaxial angeordneten Luftzuführkanal
3 und zum anderen ein Wasserzuführkanal 4 mit einer Querbohrung
5 zur Mischkammer 2 vorgesehen ist. Die Flüssigkeit, im
vorliegenden Fall Wasser, tritt daher in Form eines Strahles
senkrecht zur Strömungsrichtung der durch den Zuführkanal 3
eingeführten Luft in die Mischkammer 2 ein. Der Wasserstrahl
wird dadurch aufgerissen und Luft und Wasser innig vermischt.
In die Mischkammer 2, die am unteren Ende mit einem Innengewinde
versehen ist, ist ein als Einschraubhülse ausgebildetes
Mundstück 6 eingeschraubt, das gegenüber dem Gehäuse 1 durch
einen Dichtring 7 abgedichtet ist. Das Mundstück 6 ist mit
einer koaxial zur Mischkammer 2 angeordneten zylindrischen
Bohrung 8 versehen, in deren Boden 8a eine kreisrunde Austrittsöffnung
9 zentrisch angeordnet ist, deren Durchmesser
aber kleiner als der Durchmesser der Bohrung 8 und höchstens
die Hälfte dieses Durchmessers ausmacht. Die Austrittsöffnung
9 geht in Strömungsrichtung außen in einen sich erweiternden
Austrittskonus 10 über, der beim Ausführungsbeispiel einen
Winkel α von etwa 140° aufweist. Dieser Winkel ist ausgelegt
zur Erzeugung eines Sprühwinkels von 90°. Bekanntlich geht
der erzeugte Sprühstrahl wegen der Unterdruckbildung am Konus
10 nach dem Austritt zusammen.Fig. 1 shows a two-component spray nozzle, in the air and
Water mixed to create a spray
become. The two-component spray nozzle according to FIGS. 1 and 2 has
a
In der zylindrischen Bohrung 8 des Mundstückes 6 ist im Abstand
zum Boden 8a ein Dralleinsatz 11 vorgesehen, der in die
Bohrung 8 beispielsweise mit Presssitz eingesetzt wird. Dieser
Dralleinsatz 11 kann nach den Fig. 5 und 6 durch Bohren
hergestellt sein, und zwar so, dass eine zentrale Mittelbohrung
12, die am Eintritt und am Austritt angefast ist, von
mehreren gleichmäßig am Umfang verteilten Schrägbohrungen 13
umgeben ist, die unter einem bestimmten Winkel β zur Mittelachse
14 des Dralleinsatzes, die mit der Mittelachse der
Bohrung 8 und der Mischkammer 2 des Anschlusskanals 3 zusammenfällt,
angeordnet sind. Der Winkel β beträgt beim Ausführungsbeispiel
45°, er kann jedoch auch im gewissen Umfang variiert
werden. Tritt daher das in der Mischkammer 2 gebildete
Luft-Wasser-Gemisch in den Dralleinsatz 11 ein und durch diesen
hindurch, so wird es in dem Raum der Bohrung 8 zwischen
Dralleinsatz 11 und Austrittsöffnung 9 in Rotation versetzt,
wobei die Mittelbohrung 12 die Verteilungssymmetrie die aus
dem Dralleinsatz 11 ausströmenden Gemischstrahlen positiv beeinflusst.
Das rotierende Zweistoffgemisch tritt dann unter
Druck durch die Öffnung 9 aus und bildet einen Vollkegelsprühstrahl.In the
Es ist zu erwähnen, dass die Summe der freien Durchtrittsquerschnitte
der Bohrungen 12 und 13 im Dralleinsatz 11 stets
größer sein soll als der freie Durchtrittsquerschnitt der
Austrittsöffnung 9.It should be mentioned that the sum of the free passage cross sections
the
Die Fig. 2 zeigt noch zwei Befestigungsbohrungen 15 im Gehäuse
1, die parallel zur Achse 14 der Mischkammer 2 verlaufen.
Mit ihrer Hilfe lässt sich das Gehäuse 1 an einer Halterung
montieren.Fig. 2 shows two mounting
Fig. 3 zeigt eine abgewandelte Ausführungsform mit einem Gehäuse
20, das mit zwei eingeschraubten Anschlüssen 21 und 22
versehen ist, deren Durchmesser sich in der mit den Pfeilen
23 und 24 angedeuteten Strömungsrichtung jeweils verengt.
Beide Einsätze 21 und 22 münden mit ihren düsenartigen Austrittsöffnungen
25 und 26 in eine Mischkammer 27, die koaxial
zum Schraubanschluss 21 verläuft und in etwa zylindrisch ausgebildet
ist. Die der Düse 26 gegenüberliegende Wand der
Mischkammer 27 ist dabei mit einer Vertiefung 28 versehen,
die als Rückprallfläche für den im Sinn des Pfeiles 24 eintretenden
Wasserstrahl dient und den Wasserstrahl durch den
Aufprall aufreißt, so dass die in Richtung des Pfeiles 23 zuströmende
Luft die gewünschte gleichmäßige Mischung zwischen
Luft und Wasser bewirken kann. Solche Gehäuse 20 mit einer
wie beschrieben ausgebildeten Mischkammer sind in der
DE 196 04 902 A1 beschrieben.Fig. 3 shows a modified embodiment with a
An die Mischkammer 27 schließt sich ein Verlängerungsrohr 29
an, das am unteren Ende mit einer aufgesetzten Muffe 30 mit
einem Außengewinde versehen ist, welches wiederum dazu dient,
eine Überwurfmutter 31 aufzunehmen, mit deren Hilfe ein Mundstück
32 am unteren Rohrende gehalten wird. Das Mundstück 32
ist analog zum Mundstück 6 der Fig. 1 ausgebildet. Die Bohrung
8 des Mundstückes 32, der Dralleinsatz 11 und die Austrittsöffnung
9 sind daher mit den gleichen Bezugszahlen versehen
worden. Auch die Funktionsweise der Zweistoffsprühdüsenanordnung
nach Fig. 3 entspricht bezüglich des aus dem
Mundstück 32 austretenden Vollkegelsprühstrahles jener der
Zweistoffsprühdüse der Fig. 1.An
Die Fig. 7 und 8 zeigen einen anstelle des gebohrten Dralleinsatzes
der Fig. 5 und 6 ebenfalls verwendbaren Dralleinsatz
40, der durch Fräsen hergestellt worden ist. Auch dieser
Dralleinsatz 40 besitzt die zentrale Mittelbohrung 12, die
drallerzeugenden Durchtrittskanäle sind aber durch die am Außenumfang
des Dralleinsatzes 40 schräg eingefräste Nuten 41
gebildet. Bezüglich der freien Durchtrittsquerschnitte gilt
auch hier, dass die freien Durchtrittsquerschnitte der Nuten
41, die nach dem Einbau außen durch die Bohrung 8 des Mundstückes
6 oder 32 abgeschlossen werden, ebenfalls größer sein
muß als die der freie Durchtrittsquerschnitt der Austrittsöffnung
9. 7 and 8 show one instead of the drilled
Als Dralleinsatz ist jeweils ein gebohrter Dralleinsatz (Fig. 5) oder ein gefräster Dralleinsatz (Fig. 7) gezeigt. Denkbar wäre es auch, einen an sich bekannten X-Dralleinsatz vorzusehen, der eine sehr geringe Steigung hat.A drilled swirl insert (Fig. 5) or a milled swirl insert (Fig. 7) shown. Conceivable it would also be to provide an X-twist insert known per se, that has a very slight slope.
Claims (12)
- A two-component spray nozzle, in particular for the spraying of low viscosity liquids for cooling in continuous casting machines, having a housing (1, 20) with a mixing chamber (2, 27), with one connecting channel (3, 5, 25, 26) discharging into said mixing chamber for the supply of a gaseous and another for the supply of a liquid medium and with a mouthpiece (6, 32) connected downstream of the mixing chamber with a cylindrical hole (8) and a rotationally symmetrical outlet (9),
characterised in that
a swirl insert (11, 40) is positioned in the hole (8) of the mouthpiece (6, 32) and the outlet (9) in the centre of the base (8a) of the mouthpiece (6) has a diameter which is no more than half of the diameter of the hole (8) in the mouthpiece (6, 32). - A two-component spray nozzle in accordance with claim 1,
characterised in that
the outlet (9) expands into an outlet cone (10), the outlet angle α of which is adjusted to the desired spray angle. - A two-component spray nozzle in accordance with claim 1 or 2,
characterised in that
the part of the base (8a) encompassing the outlet (9) is flat and oriented at right angles to the axis (14) of the hole (8). - A two-component spray nozzle in accordance with claim 1 or 2,
characterised in that
the part of the base (8a) encompassing the outlet (9) is rounded. - A two-component spray nozzle in accordance with claim 1,
characterised in that
the swirl insert (11, 40) is bored or milled. - A two-component spray nozzle in accordance with claim 5,
characterised in that
the swirl insert (11, 40) is provided with several holes (13) or several grooves (41) positioned at its outer edge which are distributed equally around the circumference. - A two-component spray nozzle in accordance with claim 6,
characterised in that
the swirl insert (11, 40) has a central hole running in axial direction with an entry bevel and an exit bevel. - A two-component spray nozzle in accordance with claim 6 or 7,
characterised in that
the sum of the free opening areas of the holes (13) or grooves (41) is greater than the opening area of the outlet (9) of the mouthpiece (6, 32). - A two-component spray nozzle in accordance with claim 1,
characterised in that
the distance between the base (8a) and the swirl insert (11, 40) is selected such that a homogenous flow is achieved before the outlet (9). - A two-component spray nozzle in accordance with claim 1,
characterised in that
the mixing chamber (2) is cylindrical with connecting channels (3, 5) which are perpendicular to one another and the mouthpiece (6) is a screw sleeve which is connected immediately downstream of the mixing chamber (2). - A two-component spray nozzle in accordance with claim 1,
characterised in that
the connecting channel (26) for the liquid discharges in the manner of a nozzle into the mixing chamber (27) which has, on the wall opposite the nozzle-like connecting channel (26), a recess (28) serving as a rebound surface for the flow of liquid issuing from the nozzle, the air connection (25) running in the axial direction of the mixing chamber (27) and being perpendicular to the axis of the flow of liquid. - A two-component spray nozzle in accordance with claim 11,
characterised in that
an extension pipe (29) is provided between the mouthpiece (32) and the mixing chamber (27) and the mouthpiece (32) is fixed to this extension pipe by means of a union nut (31).
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES01106427T ES2204774T3 (en) | 2001-03-22 | 2001-03-22 | NOZZLE SPRAY NOZZLE. |
| AT01106427T ATE246962T1 (en) | 2001-03-22 | 2001-03-22 | TWO-FUNCTION SPRAY NOZZLE |
| DE50100495T DE50100495D1 (en) | 2001-03-22 | 2001-03-22 | Binary spray nozzle |
| EP01106427A EP1243343B1 (en) | 2001-03-22 | 2001-03-22 | Dual fluid spray nozzle |
| JP2002076283A JP3715579B2 (en) | 2001-03-22 | 2002-03-19 | Two component spray nozzle |
| US10/101,861 US6705538B2 (en) | 2001-03-22 | 2002-03-21 | Two-medium spraying nozzle and method of using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01106427A EP1243343B1 (en) | 2001-03-22 | 2001-03-22 | Dual fluid spray nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1243343A1 EP1243343A1 (en) | 2002-09-25 |
| EP1243343B1 true EP1243343B1 (en) | 2003-08-13 |
Family
ID=8176786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01106427A Expired - Lifetime EP1243343B1 (en) | 2001-03-22 | 2001-03-22 | Dual fluid spray nozzle |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6705538B2 (en) |
| EP (1) | EP1243343B1 (en) |
| JP (1) | JP3715579B2 (en) |
| AT (1) | ATE246962T1 (en) |
| DE (1) | DE50100495D1 (en) |
| ES (1) | ES2204774T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1767277A2 (en) | 2005-09-23 | 2007-03-28 | Lechler GmbH | Solid cone spray nozzle |
| WO2007087893A1 (en) * | 2006-01-11 | 2007-08-09 | Sms Demag Ag | Method and apparatus for continuous casting |
| DE102013203339A1 (en) | 2013-02-28 | 2014-08-28 | Lechler Gmbh | Two-fluid nozzle and method for spraying a liquid-gas mixture |
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| AUPS275302A0 (en) * | 2002-05-31 | 2002-06-27 | Khouri, Anthony | Vehicle mounted concrete mixing drum and method of manufacture thereof |
| DE10259563A1 (en) | 2002-12-19 | 2004-07-01 | Valeo Systèmes d`Essuyage | Washer nozzle for use on vehicles for dispensing a liquid cleaning or washing medium |
| EP1660289A4 (en) * | 2003-08-15 | 2009-01-07 | Mc Neilus Truck & Mfg Inc | Mixing drum blade |
| EP1660290A4 (en) * | 2003-08-15 | 2009-01-07 | Mc Neilus Truck & Mfg Inc | Mixing drum |
| CA2535779C (en) * | 2003-08-15 | 2011-09-27 | Mcneilus Truck And Manufacturing, Inc. | Mixing drum hatch |
| AU2004318001A1 (en) * | 2004-03-04 | 2005-10-13 | Composite Technology R & D Pty Limited | Mixing drum |
| JP4239879B2 (en) * | 2004-03-30 | 2009-03-18 | 株式会社デンソー | Micro-mist generation method and apparatus |
| WO2005113211A1 (en) * | 2004-05-18 | 2005-12-01 | Mc Neilus Truck And Manufacturing, Inc. | Concrete batch plant |
| ITTV20050015A1 (en) * | 2005-01-31 | 2006-08-01 | Riversdale Invest Ltd | NOZZLE STRUCTURE PARTICULARLY FOR THE ATOMIZATION OF A LIQUID |
| JP4820087B2 (en) * | 2004-12-16 | 2011-11-24 | 株式会社いけうち | Two-fluid nozzle |
| US20070018013A1 (en) * | 2005-07-25 | 2007-01-25 | Valeo Electrical Systems, Inc. | Washer nozzle and system and method for making a washer nozzle |
| CN101351285B (en) * | 2006-01-11 | 2011-12-28 | Sms西马格股份公司 | Method and apparatus for continuous casting |
| US20070187434A1 (en) * | 2006-02-10 | 2007-08-16 | Mcneilus Truck And Manufacturing, Inc. | Applicator system |
| US7611080B2 (en) * | 2006-06-05 | 2009-11-03 | Spraying Systems Co. | Full cone air assisted spray nozzle for continuous metal casting cooling |
| US20090288798A1 (en) * | 2008-05-23 | 2009-11-26 | Nucor Corporation | Method and apparatus for controlling temperature of thin cast strip |
| DE102009058198A1 (en) * | 2009-12-15 | 2011-06-16 | Sms Siemag Ag | Nozzle device and strand guiding device with the nozzle device |
| US10017372B2 (en) | 2010-02-05 | 2018-07-10 | Ecowell, Llc | Container-less custom beverage vending invention |
| US10000370B2 (en) | 2010-02-05 | 2018-06-19 | Ecowell, Llc | Container-less custom beverage vending invention |
| CN101927339B (en) * | 2010-09-07 | 2012-05-09 | 宁波宝迪汽车部件有限公司 | Cooling joint for casting mold |
| CN102688819A (en) * | 2011-03-23 | 2012-09-26 | 中国钢铁股份有限公司 | Gas-liquid mixed nozzle device |
| CN102430731A (en) * | 2011-09-29 | 2012-05-02 | 营口中通控制设备制造有限公司 | Dual-swirl tangential outer mixed type water atomizing nozzle |
| US8882085B1 (en) * | 2012-07-25 | 2014-11-11 | The United States Of America As Represented By The Secretary Of The Army | Micro atomizer |
| EP2698210B1 (en) * | 2012-08-15 | 2020-01-01 | SMS Concast AG | Spray nozzle device, in particular for spraying a cast strand |
| US20150107619A1 (en) * | 2013-10-22 | 2015-04-23 | Taiwan Semiconductor Manufacturing Company Limited | Wafer particle removal |
| KR101754319B1 (en) | 2015-06-24 | 2017-07-19 | 주식회사 엘지씨엔에스 | Medium processing apparatus, financial machine, financial system, and control method of the same |
| CN105081251B (en) * | 2015-09-24 | 2017-03-29 | 攀钢集团工程技术有限公司 | Fan-shaped section nozzle |
| JP6474162B2 (en) * | 2016-04-28 | 2019-02-27 | 株式会社ニフコ | Nozzle device |
| US10981185B2 (en) | 2016-08-13 | 2021-04-20 | Nordson Corporation | Systems and methods for two-component mixing in a jetting dispenser |
| US10549290B2 (en) * | 2016-09-13 | 2020-02-04 | Spectrum Brands, Inc. | Swirl pot shower head engine |
| AT15758U1 (en) * | 2016-12-06 | 2018-05-15 | Primetals Technologies Austria GmbH | Two-substance block nozzle with an optimized outer geometry |
| US10654051B2 (en) * | 2017-01-31 | 2020-05-19 | Packaging Concepts Associates Holdings, Inc. | Droplet dispensing assembly and converter attachment for spray-to-droplet conversion |
| CN109806995B (en) * | 2019-03-07 | 2020-07-17 | 北京中冶冶金设备制造有限公司 | High-efficient long body nozzle |
| AT523701B1 (en) * | 2020-03-12 | 2024-04-15 | Primetals Technologies Austria GmbH | Two-component shaft nozzle with reduced tendency to clogging |
| CN114309512A (en) * | 2021-12-31 | 2022-04-12 | 扬州江冶喷雾系统有限公司 | Aerosol mixing nozzle with changeable spraying angle |
| US11794199B2 (en) | 2022-01-20 | 2023-10-24 | Packaging Concepts Associates Holding, Inc. | Folding extension nozzle and dispensing assembly |
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| US1757023A (en) * | 1926-10-20 | 1930-05-06 | Ira E Smith | Oil burner |
| US3567116A (en) * | 1968-12-18 | 1971-03-02 | Minnesota Mining & Mfg | Atomizing method and apparatus |
| US4142682A (en) * | 1977-02-04 | 1979-03-06 | Bowen Norman D | Spray nozzle insert |
| US4346724A (en) * | 1981-02-11 | 1982-08-31 | Lechler Gmbh & Co. Kg | Apparatus for spraying a coolant on a steel slab |
| JPS58156548U (en) * | 1982-04-08 | 1983-10-19 | 株式会社共立合金製作所 | Nozzle device for gas-liquid mixture spray |
| US4591099A (en) * | 1983-11-07 | 1986-05-27 | Spraying Systems Co. | Nozzle to provide fan-shaped spray pattern |
| DE3915210A1 (en) * | 1989-05-10 | 1990-11-22 | Lechler Gmbh & Co Kg | TWO-MATERIAL FLAT-JET NOZZLE FOR SPRAYING LIQUIDS |
| DE19505647C2 (en) | 1995-02-18 | 1997-12-11 | Lechler Gmbh & Co Kg | Arrangement for spraying a two-substance mixture |
| DE19604902C2 (en) * | 1996-02-10 | 2002-11-14 | Lechler Gmbh & Co Kg | two-fluid nozzle |
| DE19758557A1 (en) * | 1997-11-26 | 1999-07-22 | Webasto Thermosysteme Gmbh | Low pressure atomizer with several adjacent two-substance nozzles, especially for fluid and gaseous mediums |
| US6036116A (en) * | 1998-04-16 | 2000-03-14 | Coltec Industries Inc | Fluid atomizing fan spray nozzle |
-
2001
- 2001-03-22 AT AT01106427T patent/ATE246962T1/en active
- 2001-03-22 ES ES01106427T patent/ES2204774T3/en not_active Expired - Lifetime
- 2001-03-22 EP EP01106427A patent/EP1243343B1/en not_active Expired - Lifetime
- 2001-03-22 DE DE50100495T patent/DE50100495D1/en not_active Expired - Lifetime
-
2002
- 2002-03-19 JP JP2002076283A patent/JP3715579B2/en not_active Expired - Fee Related
- 2002-03-21 US US10/101,861 patent/US6705538B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1767277A2 (en) | 2005-09-23 | 2007-03-28 | Lechler GmbH | Solid cone spray nozzle |
| DE102005047195B3 (en) * | 2005-09-23 | 2007-06-06 | Lechler Gmbh | Solid cone spray nozzle |
| WO2007087893A1 (en) * | 2006-01-11 | 2007-08-09 | Sms Demag Ag | Method and apparatus for continuous casting |
| DE102013203339A1 (en) | 2013-02-28 | 2014-08-28 | Lechler Gmbh | Two-fluid nozzle and method for spraying a liquid-gas mixture |
| RU2629068C2 (en) * | 2013-02-28 | 2017-08-24 | Лехлер ГмбХ | Two-component nozzle and liquid-gas mixture spraying method |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE246962T1 (en) | 2003-08-15 |
| EP1243343A1 (en) | 2002-09-25 |
| JP3715579B2 (en) | 2005-11-09 |
| DE50100495D1 (en) | 2003-09-18 |
| US6705538B2 (en) | 2004-03-16 |
| JP2002346711A (en) | 2002-12-04 |
| ES2204774T3 (en) | 2004-05-01 |
| US20020134862A1 (en) | 2002-09-26 |
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