EP1423220A1 - Method and device for draining waste water in the inner bend of a beam blank casting machine - Google Patents

Method and device for draining waste water in the inner bend of a beam blank casting machine

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Publication number
EP1423220A1
EP1423220A1 EP02798704A EP02798704A EP1423220A1 EP 1423220 A1 EP1423220 A1 EP 1423220A1 EP 02798704 A EP02798704 A EP 02798704A EP 02798704 A EP02798704 A EP 02798704A EP 1423220 A1 EP1423220 A1 EP 1423220A1
Authority
EP
European Patent Office
Prior art keywords
water
beam blank
profile
waste water
jets
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
EP02798704A
Other languages
German (de)
French (fr)
Other versions
EP1423220B1 (en
Inventor
Dirk Letzel
Herbert Brotzwi
Jürgen Friedrich
Heinz-Dietrich Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1423220A1 publication Critical patent/EP1423220A1/en
Application granted granted Critical
Publication of EP1423220B1 publication Critical patent/EP1423220B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • 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
    • 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
    • B22D11/1248—Means for removing cooling agent from the surface of the cast stock

Definitions

  • the invention relates to a method and a device for draining waste water in the inner curve of the strand guide of a beam blank casting machine.
  • the cast format is solidified within the strand guide.
  • the initial solidification takes place in the mold by heat conduction on water-cooled copper plates. Further heat dissipation is achieved within the strand guide by means of roller contact, heat dissipation via spray water nozzles and heat radiation.
  • the beam blank profile is produced in a casting radius.
  • drain water collects on the inside of the Beam Blank profile. This adds up in the strand withdrawal direction from row of nozzles to row of nozzles, and on the one hand hinders heat transfer by spray cooling and on the other hand leads to water accumulation in front of the flame cutting machine. It is known to absorb excess water with a suction device and to separate it from the continuous caster.
  • Such a suction device on a beam blank casting machine is known from document JP 58 15 7559 A1.
  • the cooling water residues are taken up by a knife-shaped inlet suction pipe and sucked by the negative pressure at the end of an outlet pipe formed with a round cross section.
  • the negative pressure is generated by a concentric jacket tube, in which negative air pressure flows along the end of the outlet tube.
  • the suction pressure is correspondingly low and only allows the last remnants of the cooling water to be sucked up.
  • an inclined surface for draining larger quantities of residual cooling water is arranged above the inlet suction pipe, which divides in opposite transverse directions above the inlet suction pipe, so that cooling water residues run off on both sides of the casting strand and have to be collected separately.
  • beam blank profiles or pre-profile strands are shaped in such a way that they hold residual water between the side profile edges so that they only have to be removed between these elevations. Since the space and space are already cramped by the support roller frame, there is insufficient space to provide devices for removing the cooling water. In addition, the existing space is already being used to such an extent that additional facilities would only be disruptive.
  • the present invention is therefore based on the object of providing a method and a device for discharging waste water from the inner bend of a beam blank profile, which does justice to the narrow structural conditions in pre-profile strand casting systems and at the same time ensures that the amounts of residual water running off are largely removed ,
  • the stated object is achieved according to the invention in a method for draining waste water from the inner curve of the strand guide of a beam blank casting machine according to the preamble of claim 1 in that the waste water collecting in the inner curve of the beam blank profile in the area of a discharge device by the action of high-energy, jet jets directed against its direction of travel are raised to form a dynamic pressure over the lateral profile edges of the inner curve and are guided into a sintering channel arranged underneath.
  • the invention uses the open water available for cooling with the jet pressure available at the transfer point to the discharge device.
  • the rays of this medium imitated from bundle nozzles lift the of the beam blank profile, the drain water flowing in easily and guide it over the edges of the beam blank profile to the drain into the sintering channel arranged underneath.
  • the main advantage results from the fact that the flange edges of the beam blank profile do not experience undefined cooling when the water is drained off.
  • pressurized water be used to generate the nozzle jets.
  • air or an air / water mixture can also advantageously be used to generate the jet streams.
  • the drain water After lifting the drain water over the side edges of the beam blank profile, the drain water flows into the drainage device in a controlled manner. The water discharged in this way flows into the sintering channel below.
  • the task of the sintering gutter is to collect the waste water, the scale and the casting powder residues from the cooling process in the casting arch. Seen in the longitudinal section of such a system, it is arranged below the casting curve and is provided in such a width that it can collect as much as possible of the water falling from the casting curve, which is enriched with scale and casting powder residues.
  • the collected cooling water which is contaminated with solids, is processed in the water management of the system and then returned to the beam blank casting machine as cooling water.
  • a device for draining waste water from the inner bend of the strand guide of the beam blank casting machine for carrying out the method comprises a diverter on the lower region of the inner bend of the strand guide between the lateral edges of the beam blank profile, the diverter being guided in height-adjustable manner in guide rails and attached to one Supply pipe for a pressure medium for generating the jet streams is connected.
  • the drainage device for the waste water is advantageously provided in the lower part of the casting curve for functional reasons and for reasons of space.
  • cooling water nozzles are provided for spraying the strand guide and jet nozzles for imitating the direction of the drain water are arranged in the inner bend of the beam blank profile in the direction of high-energy nozzle jets.
  • jet nozzles are used to generate water jets, for example in the range of approximately 10 bar or to generate air jets or jet jets with a water / air mixture, for example in the range of approximately 6 bar.
  • a sintering gutter for collecting drain water overflowing from the inner arch of the beam blank profile is arranged in an area below the discharge device, which is provided with at least one drain element, this advantageously with a cleaning and water recycling system Water management related.
  • a beam blank casting machine can be provided with any number of casting strands, depending on the casting format. If a beam blank casting machine is designed for several casting formats, the discharge device is equipped with an interchangeable head. Depending on the format to be cast, a nozzle arrangement / discharge arrangement which is matched to the dimensions of the beam blank is provided, and in any case this must be brought into a defined position relative to the beam blank. As a result, the discharge device can also be positioned offset from the inner arch by means of a roller. The optimal position in terms of process technology can be used.
  • the diverting device is located on the lower region of the inner curve of the beam blank profile, between whose lateral edge profiles are adjustable in height, guided between guide rails and a feed line for a pressure medium, also adjustable in height, is arranged at the upper end.
  • Mudguards are expediently provided on the edges of the beam blank profile in the area of the diverter.
  • FIG. 1 shows a side view of a beam blank casting machine, comprising a mold and underneath a strand guide with an inner bend and with a discharge device for drain water arranged therein and with a sintering channel underneath,
  • FIG. 2 the side view of the beam blank inside bank with the deflection device arranged therein
  • FIG. 3 shows the beam blank profile in cross section of a water outlet flow and upper discharge jet nozzles and lower nozzle jets for uniform cooling
  • FIG. 4 shows a top view of an area of the discharge device with drain water and opposing spray jets
  • FIG. 5 shows a perspective view of a section of the beam blank.
  • a beam blank casting machine can be seen in side view, with a mold 2, a strand guide 3, with guide rollers and with spray water nozzles 5, the cooling water between the rollers of the strand guide 3 for cooling the cast beam blank, for example a preliminary profile for the beam rolling nozzles.
  • the sprayed cooling water collects in the inner arch of the strand guide 3 and runs in the inner arch 4 of the beam blank profile on the web between the lateral profile edges 11 in the strand withdrawal direction.
  • the drain water adds up in the strand withdrawal direction from row of nozzles to row of nozzles and on the one hand hinders the heat transfer by spray cooling and on the other hand leads to water accumulation which hinders a controlled cooling of the beam blank.
  • the drain water is drained off from the surface of the beam blank in the area of the beam blank inner arc 4 by means of a drainage device 6.
  • the drain water 7 of the drainage device is collected in a sintering channel 9 arranged underneath the strand guide and is led out of the sintering channel 9 by means of an outlet process 20 for treatment into the water management of the system and from this, among other things. returned to the water cooling device of the beam blank casting machine, which is not shown in detail.
  • the deflection device 6, as can be seen in FIG. 2, is arranged in the lower region of the inner curve of the strand guide 3 and there between the lateral profile edges 11 of the beam blank profile, the so-called “tips”, between the guide rails 19, adjustable in height.
  • a feed line 18 for the pressure medium 15 is also guided in a height-adjustable manner with a pipe bend in a guide 17.
  • the height adjustment of the discharge device is provided in order to regulate an optimal drain function depending on the type and amount of drain water 7 and thus to ensure this.
  • the discharge device 6 is designed to discharge the drain water 7 from the upper profile cross section 10 of the beam blank with nozzles for forming hard, high-energy nozzle streams 13, 14 and to support the function of the nozzle jet.
  • len is provided with fenders 21 on the profile edges 11.
  • the high-energy jet jets are directed against the discharge direction of the discharge water and raise the discharge water over the lateral profile edges 11 of the inner bend of the beam blank profile, with the formation of a dynamic pressure, so that the discharge water can flow off into the sintering channel 9 arranged below (see FIG. 1) , Pressurized water is used to generate the jet streams 13, 14.
  • air or an air / water mixture can be used to generate the nozzle jets 13, 14.
  • FIG. 3 shows the cross section of a beam blank profile with its web 12 and its lateral profile edges 11. Cooling nozzle jets 5 'are directed onto the beam blank profile from spray water nozzles 5. It can be seen that the drain water 7 collects on the upper side of the web 12 and runs downwards from it in the strand guide direction.
  • Figure 4 shows a plan view of the measures for draining the drain water 7 from the land area 12 of the beam blank profile.
  • pressurized water is fed to the jet nozzles 8 via the pressurized water connection 15.
  • the high-energy jet jets 13, 14 are directed against the discharge direction of the drain water 7 and the jet energy is dimensioned such that the drain water is raised somewhat and is discharged laterally over the profile edges 11 of the beam blank profile.
  • FIG. 5 shows a perspective view of a piece of a beam blank profile in cross section 10 with the profile edges or "tips" 11 and the connecting central web 12, as well as with a nozzle arrangement 8 for generating the nozzle jets, obliquely opposing the surge of drain water 7th

Abstract

The invention relates to a method and a device for draining waste water (7) from the inner bend of the strand guide (3) of a beam blank casting machine. In order to drain said waste water from the beam blank in a targeted and controlled manner, a draining device (6) is arranged in the area of the strand guide (4) for the beam blank, said device being provided with jet nozzles (8). Under the effect of jets (13, 14) directed with high energy against the water flow direction, the waste water is lifted on the formation of a banking-up pressure by means of said draining device (6), directed at the lateral edges (11) of the inner bend (4) of the beam blank (10) and collected in a sintered groove (9), arranged thereunder.

Description

Verfahren und Vorrichtung zum Ableiten von Ablaufwasser im Innenbogen einer Beam Blank-GießmaschineMethod and device for draining waste water in the inner bend of a beam blank casting machine
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Ableiten von Ablaufwasser im Innenbogen der Strangführung einer Beam Blank-Gießmaschine.The invention relates to a method and a device for draining waste water in the inner curve of the strand guide of a beam blank casting machine.
Bei einer Beam Blank-Gießmaschine wird das vergossene Format innerhalb der Strangführung zur Durcherstarrung gebracht. Die Ersterstarrung erfolgt in der Kokille durch Wärmeleitung an wassergekühlte Kupferplatten. Die weitere Wärmeabfuhr wird innerhalb der Strangführung durch Rollenkontakt, Wärmeabfuhr über Spritzwasserdüsen und Wärmestrahlung erzielt. Das Beam Blank-Profil wird in einem Gießradius produziert. Prinzipbedingt sammelt sich auf dem Innenbogen des Beam Blank-Profils Ablaufwasser. Dieses addiert sich in Strangabzugsrichtung von Düsenreihe zu Düsenreihe, und behindert einerseits den Wärmeübergang durch Spritzkühlung und führt andererseits zu einer Wasseransammlung vor der Brennschneidmaschine. Es ist bekannt, dass Überschußwasser mit einer Absaugvorrichtung aufzunehmen und gesondert von der Stranggießanlage abzuleiten.In a beam blank casting machine, the cast format is solidified within the strand guide. The initial solidification takes place in the mold by heat conduction on water-cooled copper plates. Further heat dissipation is achieved within the strand guide by means of roller contact, heat dissipation via spray water nozzles and heat radiation. The beam blank profile is produced in a casting radius. In principle, drain water collects on the inside of the Beam Blank profile. This adds up in the strand withdrawal direction from row of nozzles to row of nozzles, and on the one hand hinders heat transfer by spray cooling and on the other hand leads to water accumulation in front of the flame cutting machine. It is known to absorb excess water with a suction device and to separate it from the continuous caster.
Eine derartige Absaugvorrichtung an einer Beam Blank-Gießmaschine ist aus dem Dokument JP 58 15 7559 A1 bekannt. Gemäß dieser vorbekannten Vorrichtung werden die Kühlwasserreste durch ein messerartig geformtes Eingangs- Saugrohr aufgenommen und durch den Unterdruck am Ende eines mit rundem Querschnitt gebildeten Ausgangsrohres gesaugt. Der Unterdruck wird durch ein konzentrisches Mantelrohr erzeugt, in welchem Luftunterdruck am Ende des Ausgangsrohres entlang strömt. Der Saugdruck ist entsprechend niedrig und erlaubt nur noch, die letzten Reste des Kühlwassers aufzusaugen.Such a suction device on a beam blank casting machine is known from document JP 58 15 7559 A1. According to this known device, the cooling water residues are taken up by a knife-shaped inlet suction pipe and sucked by the negative pressure at the end of an outlet pipe formed with a round cross section. The negative pressure is generated by a concentric jacket tube, in which negative air pressure flows along the end of the outlet tube. The suction pressure is correspondingly low and only allows the last remnants of the cooling water to be sucked up.
CONFIRMATION C0PY Dabei ist über dem Eingangs- Saugrohr noch eine schräge Fläche zum Ablaufen größerer Mengen von Restkühlwasser angeordnet, die sich über dem Eingangs- Saugrohr in entgegengesetzte Querrichtungen teilt, so dass Kühlwasserreste zu beiden Seiten des Gießstranges ablaufen und gesondert aufgefangen werden müssen.CONFIRMATION C0PY Here, an inclined surface for draining larger quantities of residual cooling water is arranged above the inlet suction pipe, which divides in opposite transverse directions above the inlet suction pipe, so that cooling water residues run off on both sides of the casting strand and have to be collected separately.
Prinzipiell sind Beam Blank-Profile bzw. Vorprofilstränge so geformt, dass sie Restwassermengen zwischen den seitlichen Profilrändern halten, so dass diese nur zwischen diesen Erhebungen entfernt werden müssen. Da die Platz- und Raumverhältnisse schon durch das Stützrollengerüst beengt sind, fehlt es an einem ausreichenden Raum, um Vorrichtungen für die Entfernung des Kühlwassers vorzusehen. Außerdem ist der vorhandene Raum bereits so weit ausgenutzt, dass zusätzliche Einrichtungen nur störend wären.In principle, beam blank profiles or pre-profile strands are shaped in such a way that they hold residual water between the side profile edges so that they only have to be removed between these elevations. Since the space and space are already cramped by the support roller frame, there is insufficient space to provide devices for removing the cooling water. In addition, the existing space is already being used to such an extent that additional facilities would only be disruptive.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum Ableiten von Ablaufwasser aus dem Innenbogen eines Beam Blank-Profils zu schaffen, die den engen Bauverhältnissen bei Vor- profilstrang- Gießanlagen gerecht wird und gleichzeitig eine weitgehende Entfernung der ablaufenden Restwassermengen gewährleistet.The present invention is therefore based on the object of providing a method and a device for discharging waste water from the inner bend of a beam blank profile, which does justice to the narrow structural conditions in pre-profile strand casting systems and at the same time ensures that the amounts of residual water running off are largely removed ,
Die gestellte Aufgabe wird bei einem Verfahren zum Ableiten von Ablaufwasser aus dem Innenbogen der Strangführung einer Beam Blank-Gießmaschine gemäß Oberbegriff von Anspruch 1 erfindungsgemäß dadurch gelöst, dass das sich im Innenbogen des Beam Blank-Profils sammelnde Ablaufwasser im Bereich einer Ableitvorrichtung durch Einwirkung energiereicher, gegen seine Laufrichtung gerichteter Düsenstrahlen unter Ausbildung eines Staudrucks über die seitlichen Profilränder des Innenbogens angehoben wird und in eine darunter angeordnete Sinterrinne geleitet wird.The stated object is achieved according to the invention in a method for draining waste water from the inner curve of the strand guide of a beam blank casting machine according to the preamble of claim 1 in that the waste water collecting in the inner curve of the beam blank profile in the area of a discharge device by the action of high-energy, jet jets directed against its direction of travel are raised to form a dynamic pressure over the lateral profile edges of the inner curve and are guided into a sintering channel arranged underneath.
Die Erfindung nutzt das zur Kühlung vorhandene offene Wasser mit dem an der Übergabestelle zur Ableitvorrichtung zur Verfügung stehenden Strahldruck. Die aus Bündeldüsen imitierten Strahlen dieses Mediums heben dabei das im In- nenbogen des Beam Blank-Profils heranfließende Ablaufwasser leicht an und leiten es über die Ränder des Beam Blank-Profils zum Abfluß in die darunter angeordnete Sinterrinne. Der Hauptvorteil ergibt sich dadurch, dass die Flanschkanten des Beam Blank-Profils durch das Ableiten des Wassers keine Undefinierte Kühlung erfahren.The invention uses the open water available for cooling with the jet pressure available at the transfer point to the discharge device. The rays of this medium imitated from bundle nozzles lift the of the beam blank profile, the drain water flowing in easily and guide it over the edges of the beam blank profile to the drain into the sintering channel arranged underneath. The main advantage results from the fact that the flange edges of the beam blank profile do not experience undefined cooling when the water is drained off.
In Ausgestaltung des erfindungsgemäßen Verfahrens wird vorgeschlagen, dass zur Erzeugung der Düsenstrahlen Druckwasser verwendet wird. Mit Vorteil kann aber auch zur Erzeugung der Düsenstrahlen Luft oder ein Luft/Wassergemisch verwendet werden.In an embodiment of the method according to the invention, it is proposed that pressurized water be used to generate the nozzle jets. However, air or an air / water mixture can also advantageously be used to generate the jet streams.
Nach dem Anheben des Ablaufwassers über die seitlichen Ränder des Beam Blank-Profils fließt das Ablaufwasser kontrolliert in die Ableitvorrichtung. Das so abgeführte Wasser fließt in die darunter liegende Sinterrinne. Die Aufgabe der Sinterrinne besteht im Sammeln des Ablaufwassers, des Zunders und der Gießpulverrückstände aus dem Kühlprozeß im Gießbogen. Sie ist im Längsschnitt einer solchen Anlage gesehen unterhalb des Gießbogens angeordnet und in einer solchen Breite vorgesehen, dass sie das vom Gießbogen herabfallende Wasser, welches mit Zunder und Gießpulverrückständen angereichert ist, möglichst weitgehend auffangen kann. Das gesammelte und mit Feststoffen belastete Kühlwasser wird in einer weiteren Ausgestaltung der Erfindung in der Wasserwirtschaft der Anlage aufbereitet und danach wieder als Kühlwasser der Beam Blank-Gießmaschine zurückgeführt.After lifting the drain water over the side edges of the beam blank profile, the drain water flows into the drainage device in a controlled manner. The water discharged in this way flows into the sintering channel below. The task of the sintering gutter is to collect the waste water, the scale and the casting powder residues from the cooling process in the casting arch. Seen in the longitudinal section of such a system, it is arranged below the casting curve and is provided in such a width that it can collect as much as possible of the water falling from the casting curve, which is enriched with scale and casting powder residues. In a further embodiment of the invention, the collected cooling water, which is contaminated with solids, is processed in the water management of the system and then returned to the beam blank casting machine as cooling water.
Eine Vorrichtung zum Ableiten von Ablaufwasser aus dem Innenbogen der Strangführung der Beam Blank-Gießmaschine zur Durchführung des Verfahrens umfaßt eine Ableitvorrichtung am unteren Bereich des Innenbogens der Strangführung zwischen seitlichen Rändern des Beam Blank-Profils, wobei die Ableitvorrichtung in Führungsschienen höheneinstellbar geführt ist und an ein Zufuhrrohr für ein Druckmedium zur Erzeugung der Düsenstrahlen angeschlos- sen ist. Mit Vorteil ist die Ableitvorrichtung für das Ablaufwasser aus Funktionsgründen sowie aus Platzgründen im unteren Teil des Gießbogens vorgesehen. In Ausgestaltung der Ableitvorrichtung sind Kühlwasserdüsen zum Besprühen der Strangführung vorgesehen und es sind Strahldüsen zum Imitieren von der Richtung des Ablaufwassers im Innenbogen des Beam Blank-Profils entgegen gerichteten, energiereichen Düsenstrahlen angeordnet.A device for draining waste water from the inner bend of the strand guide of the beam blank casting machine for carrying out the method comprises a diverter on the lower region of the inner bend of the strand guide between the lateral edges of the beam blank profile, the diverter being guided in height-adjustable manner in guide rails and attached to one Supply pipe for a pressure medium for generating the jet streams is connected. The drainage device for the waste water is advantageously provided in the lower part of the casting curve for functional reasons and for reasons of space. In one embodiment of the discharge device, cooling water nozzles are provided for spraying the strand guide and jet nozzles for imitating the direction of the drain water are arranged in the inner bend of the beam blank profile in the direction of high-energy nozzle jets.
Um das Ablaufwasser im Beam Blank-Profil anzuheben und über die Profilränder zu leiten, werden Strahldüsen eingesetzt, zur Erzeugung von Wasserstrahlen beispielsweise im Bereich von etwa 10 bar oder zur Erzeugung von Luftstrahlen bzw. von Düsenstrahlen mit einem Wasser/Luftgemisch beispielsweise im Bereich von etwa 6 bar.In order to raise the drain water in the beam blank profile and to guide it over the profile edges, jet nozzles are used to generate water jets, for example in the range of approximately 10 bar or to generate air jets or jet jets with a water / air mixture, for example in the range of approximately 6 bar.
In Fortbildung der Ableitvorrichtung wird vorgeschlagen, dass in einem Bereich unterhalb der Ableitvorrichtung eine Sinterrinne zum Auffangen von aus dem Innenbogen des Beam Blank-Profils überlaufenden Ablaufwassers angeordnet ist, die mit wenigstens einem Ablauforgan versehen ist, wobei dieses vorteilhaft mit einer Reinigungs- und Wasserrückführanlage der Wasserwirtschaft in Verbindung steht.In a further development of the discharge device, it is proposed that a sintering gutter for collecting drain water overflowing from the inner arch of the beam blank profile is arranged in an area below the discharge device, which is provided with at least one drain element, this advantageously with a cleaning and water recycling system Water management related.
Eine Beam Blank-Gießmaschine kann je nach Gießformat mit einer beliebigen Anzahl von Gießsträngen versehen sein. Wird eine Beam Blank-Gießmaschine für mehrere Gießformate konzipiert, so wird die Ableitvorrichtung mit einem Wechselkopf ausgerüstet. Je nach dem zu vergießendem Format wird eine, auf die Abmessungen des Beam Blank abgestimmte Düsenanordnung/Ableitanordnung vorgesehen, wobei in jedem Fall diese zum Beam Blank in eine definierte Position gebracht werden muß. Infolge dessen kann die Ableitvorrichtung auch mittels Rolle aus dem Innenbogen versetzt positioniert sein. Dabei kann die prozeßtechnisch optimale Position zum Einsatz gebracht werden.A beam blank casting machine can be provided with any number of casting strands, depending on the casting format. If a beam blank casting machine is designed for several casting formats, the discharge device is equipped with an interchangeable head. Depending on the format to be cast, a nozzle arrangement / discharge arrangement which is matched to the dimensions of the beam blank is provided, and in any case this must be brought into a defined position relative to the beam blank. As a result, the discharge device can also be positioned offset from the inner arch by means of a roller. The optimal position in terms of process technology can be used.
In vorteilhafter Ausgestaltung der Ableitvorrichtung ist ferner vorgesehen, das diese am unteren Bereich des Innenbogens des Beam Blank-Profils, zwischen dessen seitlichen Randprofilen höheneinstellbar, zwischen Führungsschienen geführt ist und am oberen Ende eine Zufuhrleitung für ein Druckmedium, in ebenfalls höheneinstellbar, angeordnet ist. Zweckmäßigerweise sind im Bereich der Ableitvorrichtung Schutzbleche auf den Rändern des Beam Blank-Profils vorgesehen.In an advantageous embodiment of the diverting device, it is also provided that it is located on the lower region of the inner curve of the beam blank profile, between whose lateral edge profiles are adjustable in height, guided between guide rails and a feed line for a pressure medium, also adjustable in height, is arranged at the upper end. Mudguards are expediently provided on the edges of the beam blank profile in the area of the diverter.
Einzelheiten, Merkmale und weitere Vorteile der Erfindung ergeben sich aus der nachstehenden Erläuterung eines in den Zeichnungen schematisch dargestellten Ausführungsbeispieles. Es zeigen:Details, features and further advantages of the invention result from the following explanation of an exemplary embodiment shown schematically in the drawings. Show it:
Figur 1 eine Seitenansicht einer Beam Blank-Gießmaschine, umfassend eine Kokille und darunter eine Strangführung mit Innenbogen sowie mit einer darin angeordneten Ableitvorrichtung für Ablaufwasser sowie mit einer darunter liegenden Sinterrinne,FIG. 1 shows a side view of a beam blank casting machine, comprising a mold and underneath a strand guide with an inner bend and with a discharge device for drain water arranged therein and with a sintering channel underneath,
Figur 2 den Beam Blank-Innenborgen in Seitenansicht mit darin angeordneter Ableitvorrichtung,FIG. 2 the side view of the beam blank inside bank with the deflection device arranged therein,
Figur 3 das Beam Blank-Profil im Querschnitt einer Wasser-Ablaufströmung und oberen Ableit-Strahldüsen sowie unteren Düsen- strahlen zur gleichmäßigen Kühlung,FIG. 3 shows the beam blank profile in cross section of a water outlet flow and upper discharge jet nozzles and lower nozzle jets for uniform cooling,
Figur 4 in Draufsicht einen Bereich der Ableitvorrichtung mit Ablaufwasser und entgegengerichteten Sprühstrahlen,FIG. 4 shows a top view of an area of the discharge device with drain water and opposing spray jets,
Figur 5 in perspektivischer Ansicht einen Abschnitt des Beam Blank-FIG. 5 shows a perspective view of a section of the beam blank.
Profils mit einer Ableitvorrichtung,Profiles with a diverter,
In Figur 1 ist in Seitenansicht eine Beam Blank-Gießmaschine zu sehen, mit einer Kokille 2, einer Strangführung 3, mit Führungsrollen und mit Spritzwas- serdüsen 5, die Kühlwasser zwischen die Rollen der Strangführung 3 zur Kühlung des gegossenen Beam Blanks, z.B. eines Vorprofils für die Trägerwalzung düsen. Das aufgedüste Kühlwasser sammelt sich im Innenbogen der Strangführung 3 und läuft im Innenbogen 4 des Beam Blank-Profil auf dem Steg zwischen den seitlichen Profilrändern 11 in Strangabzugsrichtung ab. Das Ablaufwasser addiert sich in Strangabzugsrichtung von Düsenreihe zu Düsenreihe und behindert einerseits den Wärmeübergang durch Spritzkühlung und führt andererseits zu einer Wasseransammlung, die eine kontrollierte Abkühlung des Beam Blanks behindert.In Figure 1, a beam blank casting machine can be seen in side view, with a mold 2, a strand guide 3, with guide rollers and with spray water nozzles 5, the cooling water between the rollers of the strand guide 3 for cooling the cast beam blank, for example a preliminary profile for the beam rolling nozzles. The sprayed cooling water collects in the inner arch of the strand guide 3 and runs in the inner arch 4 of the beam blank profile on the web between the lateral profile edges 11 in the strand withdrawal direction. The drain water adds up in the strand withdrawal direction from row of nozzles to row of nozzles and on the one hand hinders the heat transfer by spray cooling and on the other hand leads to water accumulation which hinders a controlled cooling of the beam blank.
Um dies zu verhindern wird das Ablaufwasser mittels einer Ableitvorrichtung 6 von der Oberfläche des Beam Blanks im Bereich des Beam Blank Innenbogens 4 abgeleitet. Das Ablaufwasser 7 der Abieiteinrichtung wird in einer unterhalb der Strangführung angeordneten Sinterrinne 9 gesammelt und wird aus der Sinterrinnne 9 mittels eines Ablauforgangs 20 zur Aufbereitung in die Wasserwirtschaft der Anlage geleitet und von dieser u.a. zu der Wasserkühleinrichtung der Beam Blank-Gießmaschine zurückgeführt, was im Einzelnen nicht darge- stellt ist.In order to prevent this, the drain water is drained off from the surface of the beam blank in the area of the beam blank inner arc 4 by means of a drainage device 6. The drain water 7 of the drainage device is collected in a sintering channel 9 arranged underneath the strand guide and is led out of the sintering channel 9 by means of an outlet process 20 for treatment into the water management of the system and from this, among other things. returned to the water cooling device of the beam blank casting machine, which is not shown in detail.
Die Ableitvorrichtung 6 ist, wie Figur 2 erkennen läßt, im unteren Bereich des Innenbogens der Strangführung 3 und dort zwischen den seitlichen Profilrändern 11 des Beam Blank-Profils, den sogenannten "Tips", höhenverstellbar zwi- sehen Führungsschienen 19 angeordnet. Am oberen Ende der Ableitvorrichtung 6 ist eine Zufuhrleitung 18 für das Druckmedium 15 mit einem Rohrbogen in einer Führung 17 ebenfalls höhenverstellbar geführt.The deflection device 6, as can be seen in FIG. 2, is arranged in the lower region of the inner curve of the strand guide 3 and there between the lateral profile edges 11 of the beam blank profile, the so-called “tips”, between the guide rails 19, adjustable in height. At the upper end of the discharge device 6, a feed line 18 for the pressure medium 15 is also guided in a height-adjustable manner with a pipe bend in a guide 17.
Die Höhenverstellbarkeit der Ableitvorrichtung ist vorgesehen, um je nach Art und Menge des Ablaufwassers 7 eine optimale Ablauffunktion einzuregeln und diese damit sicherzustellen.The height adjustment of the discharge device is provided in order to regulate an optimal drain function depending on the type and amount of drain water 7 and thus to ensure this.
In Figur 2 ist weiterhin rein schematisch gezeigt, dass die Ableitvorrichtung 6 zum Ableiten des Ablaufwassers 7 aus dem oberen Profilquerschnitt 10 des Beam Blank mit Düsen zur Ausbildung von harten energiereichen Düsenstra- hen 13, 14 ausgebildet ist und zur Unterstützung der Funktion der Düsenstrah- len mit Schutzblechen 21 auf den Profilrändern 11 versehen ist. Die energiereichen Düsenstrahlen sind gegen die Abiaufrichtung des Ablaufwassers gerichtet und heben unter Ausbildung eines Staudrucks das Ablaufwasser über die seitlichen Profilränder 11 des Innenbogens des Beam Blank-Profils an, so dass das Ablaufwasser in die darunter angeordnete Sinterrinne 9 (vgl. Figur 1) abfließen kann. Zur Erzeugung der Düsenstrahlen 13, 14 wird Druckwasser verwendet. Erfindungsgemäß ist jedoch auch vorgesehen, dass zur Erzeugung der Düsenstrahlen 13, 14 Luft oder ein Luft/Wassergemisch verwendet werden kann.In FIG. 2 it is also shown purely schematically that the discharge device 6 is designed to discharge the drain water 7 from the upper profile cross section 10 of the beam blank with nozzles for forming hard, high-energy nozzle streams 13, 14 and to support the function of the nozzle jet. len is provided with fenders 21 on the profile edges 11. The high-energy jet jets are directed against the discharge direction of the discharge water and raise the discharge water over the lateral profile edges 11 of the inner bend of the beam blank profile, with the formation of a dynamic pressure, so that the discharge water can flow off into the sintering channel 9 arranged below (see FIG. 1) , Pressurized water is used to generate the jet streams 13, 14. According to the invention, however, it is also provided that air or an air / water mixture can be used to generate the nozzle jets 13, 14.
Figur 3 zeigt den Querschnitt eines Beam Blank-Profils mit seinem Steg 12 und seinen seitlichen Profilrändern 11. Aus Spritzwasserdüsen 5 werden kühlende Düsenstrahlen 5' auf das Beam Blank-Profil geleitet. Zu erkennen ist, dass sich das Ablaufwasser 7 auf der Oberseite des Stegs 12 sammelt und von diesem in Strangführungsrichtung nach unten abläuft.FIG. 3 shows the cross section of a beam blank profile with its web 12 and its lateral profile edges 11. Cooling nozzle jets 5 'are directed onto the beam blank profile from spray water nozzles 5. It can be seen that the drain water 7 collects on the upper side of the web 12 and runs downwards from it in the strand guide direction.
Figur 4 zeigt in einer Draufsicht die Maßnahmen zur Ableitung des Ablaufwassers 7 aus dem Stegbereich 12 des Beam Blank-Profils. Hierzu wird Druckwasser über den Druckwasseranschluß 15 den Strahldüsen 8 zugeleitet. Die hochenergetischen Düsenstrahlen 13, 14 sind gegen die Abiaufrichtung des Ablaufwassers 7 gerichtet und die Strahlenergie ist so bemessen, dass das Ablaufwasser etwas angehoben wird und seitlichen über die Profilränder 11 des Beam Blank-Profil abgeleitet wird.Figure 4 shows a plan view of the measures for draining the drain water 7 from the land area 12 of the beam blank profile. For this purpose, pressurized water is fed to the jet nozzles 8 via the pressurized water connection 15. The high-energy jet jets 13, 14 are directed against the discharge direction of the drain water 7 and the jet energy is dimensioned such that the drain water is raised somewhat and is discharged laterally over the profile edges 11 of the beam blank profile.
Figur 5 zeigt in einer perspektivischen Ansicht ein Stück eines Beam Blank- Profils im Querschnitt 10 mit den Profilrändern bzw. "Tips" 11 und dem verbin- denden Mittelsteg 12, sowie mit einer Düsenanordnung 8 zur Erzeugung der Düsenstrahlen , schräg entgegengerichtet dem Schwall von Ablaufwasser 7.FIG. 5 shows a perspective view of a piece of a beam blank profile in cross section 10 with the profile edges or "tips" 11 and the connecting central web 12, as well as with a nozzle arrangement 8 for generating the nozzle jets, obliquely opposing the surge of drain water 7th
Das Verfahren und die Vorrichtung gemäß der Erfindung sind nicht auf das zuvor beschriebene Ausführungsbeispiel beschränkt, sondern umfassen auch weitere Ausführungsvarianten, sofern sie dem Erfindungsgedanken genügen. BezugszeichenThe method and the device according to the invention are not limited to the exemplary embodiment described above, but also include further embodiment variants, provided they satisfy the inventive concept. reference numeral
1 Beam Blank-Gießmaschine1 beam blank casting machine
2 Kokille2 mold
3 Strangführung3 strand guide
4 Innenbogen4 inner arches
5, 5' Spritzwasserdüse, Spritzwasser5, 5 'water spray nozzle, water spray
6 Ableitvorrichtung6 discharge device
7 Ablaufwasser7 drain water
8 Düsen (Wasser/Luft)8 nozzles (water / air)
9 Sinterrinne9 sintering channel
10 Beam Blank Querschnitt10 beam blank cross section
11 Tip (Rand)11 tip
12 Steg12 bridge
13 Düsenstrahlen13 jets
14 Düsenstrahlen14 jets
15 Druckwasser-Anschluß15 pressurized water connection
16 Gießrichtung16 casting direction
17 Führung17 leadership
18 Druckrohr18 pressure pipe
19 Führungsprofil19 guide profile
20 Ablauforgan20 process organ
21 Schutzblech 21 mudguard

Claims

Patentansprüche claims
1. Verfahren zum Ableiten von Ablaufwasser (7) aus dem Innenbogen der Strangführung (3) einer Beam Blank-Gießmaschine, dadurch gekennzeichnet, dass das sich im Innenbogen (4) des Beam Blank-Profils (10) sammeln- de Ablaufwasser (7) im Bereich einer Ableitvorrichtung (6) durch Einwirkung energiereicher, gegen seine Laufrichtung gerichteter Düsenstrahlen (13, 14) unter Ausbildung eines Staudrucks über die seitlichen Profilränder 11 des Innenbogens (4) angehoben wird und in eine darunter angeordneten Sinterrinne (9) geleitet wird.1. A method for draining waste water (7) from the inner bend of the strand guide (3) of a beam blank casting machine, characterized in that the drain water (7) collecting in the inner bend (4) of the beam blank profile (10). is raised in the area of a discharge device (6) by the action of high-energy nozzle jets (13, 14) directed against its direction of travel with the formation of a dynamic pressure over the lateral profile edges 11 of the inner curve (4) and is guided into a sintering channel (9) arranged underneath.
Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass zur Erzeugung der Düsenstrahlen (13, 14) Druckwasser verwendet wird.A method according to claim 1, characterized in that pressurized water is used to generate the nozzle jets (13, 14).
Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass zur Erzeugung der Düsenstrahlen (13, 14) Luft oder ein Luft/Wassergemisch verwendet wird.A method according to claim 1, characterized in that air or an air / water mixture is used to generate the nozzle jets (13, 14).
4. Verfahren nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass das in der Sinterrinne (9) gesammelte Ablaufwasser zur Aufbereitung in die Wasserwirtschaft der Anlage geleitet und zur Gießmaschine zurückgeführt wird. 4. The method according to claim 1, 2 or 3, characterized in that the waste water collected in the sintering channel (9) is passed for treatment in the water management of the system and is returned to the casting machine.
5. Vorrichtung zum Ableiten von Ablaufwasser (7) aus dem Innenbogen (4) der Strangführung (3) der Beam Blank-Gießmaschine, zur Durchführung des Verfahrens nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Ableitvorrichtung (6) am unteren Bereich des Innnenbogens der Strangführung (3) zwischen seitlichen Rändern (11) des Beam Blank-5. Device for draining waste water (7) from the inner arch (4) of the strand guide (3) of the beam blank casting machine, for carrying out the method according to at least one of the preceding claims, characterized in that a drainage device (6) at the lower region of the inner curve of the strand guide (3) between the lateral edges (11) of the beam blank
Profils in Führungsschienen (19) höheneinstellbar geführt ist und an ein Zufuhrrohr (18) für ein Druckmedium zur Erzeugung der Düsenstrahlen (13, 14) angeschlossen ist.Profile is guided in height-adjustable guide rails (19) and is connected to a feed pipe (18) for a pressure medium for generating the nozzle jets (13, 14).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass Kühlwasserdüsen (5) zum Besprühen der Strangführung (3), vorgesehen sind und dass Strahldüsen (8) zum Emittieren von dem Ablaufwasser (7) im Innenbogen (4) des Beam Blank-Profils (10 ) entgegenge- richteten energiereichen Düsenstrahlen angeordnet sind.6. The device according to claim 5, characterized in that cooling water nozzles (5) for spraying the strand guide (3) are provided and that jet nozzles (8) for emitting the drain water (7) in the inner arch (4) of the beam blank profile ( 10) opposing high-energy jet streams are arranged.
7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Strahldüsen (8) zur Erzeugung der Düsenstrahlen (13, 14) bei- spielsweise mit einem Emissionsdruck im Bereich von etwa 10 bar, oder zur Erzeugung von Luftstrahlen bzw. von Düsenstrahlen aus einem Wasser/Luftgemisch beispielsweise mit einem Emissionsdruck im Bereich von etwa 6 bar ausgebildet sind.7. The device according to claim 5 or 6, characterized in that the jet nozzles (8) for generating the nozzle jets (13, 14), for example with an emission pressure in the range of about 10 bar, or for generating air jets or jet jets a water / air mixture, for example with an emission pressure in the range of about 6 bar.
8. Vorrichtung nach einem oder mehreren der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass in einem Bereich unterhalb der Ableitvorrichtung (6) eine Sinterrinne (9) zum Auffangen von aus dem Innenbogen (4) des Beam Blank Profils (10) überlaufendem Ablaufwasser (7) angeordnet und mit wenig- stens einem Ablauforgan (20) versehen ist. 8. The device according to one or more of claims 5 to 7, characterized in that in a region below the discharge device (6) a sintering channel (9) for collecting from the inner arch (4) of the beam blank profile (10) overflowing drain water ( 7) is arranged and provided with at least one drain element (20).
9. Vorrichtung nach einem oder mehreren der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass die Ableitvorrichtung (6) am unteren Bereich des Innenbogens (4) des Beam Blank-Profils (10) zwischen seitlichen Randprofilen (11) höheneinstellbar zwischen Führungsschienen (19) geführt ist und am obe- ren Ende einer Zufuhrleitung (18) für ein Druckmedium (15) in einer Führung (17) höheneinstellbar angeordnet ist.9. The device according to one or more of claims 5 to 8, characterized in that the discharge device (6) at the lower region of the inner bend (4) of the beam blank profile (10) between side edge profiles (11) adjustable in height between guide rails (19) is guided and is arranged at the upper end of a supply line (18) for a pressure medium (15) in a guide (17) adjustable in height.
10. Vorrichtung nach einem oder mehreren der Ansprüche 5 bis 9, dadurch gekennzeichnet, dass die Düsenstrahlen (13, 14) zur Ableitung von Ablaufwasser (7) seitlich schräg zum Innenbogen (4) vorgesehen ist.10. The device according to one or more of claims 5 to 9, characterized in that the nozzle jets (13, 14) for discharging waste water (7) is provided laterally obliquely to the inner arch (4).
11. Vorrichtung nach einem oder mehreren der Ansprüche 5 bis 10, dadurch gekennzeichnet, dass im Bereich der Ableitvorrichtung (6) Schutzbleche (21) auf den11. The device according to one or more of claims 5 to 10, characterized in that in the area of the discharge device (6) fenders (21) on the
Rändern (11) des Beam Blank-Profils (10) vorgesehen sind.Edges (11) of the beam blank profile (10) are provided.
12. Vorrichtung nach einem oder mehreren der Ansprüche 5 bis 11 , dadurch gekennzeichnet, das die Sinterrinne (9) über das Ablauforgan (20) mit einer Reinigungsund Wasserrückführanlage in Verbindung steht. 12. The device according to one or more of claims 5 to 11, characterized in that the sintering channel (9) via the drain member (20) is connected to a cleaning and water recycling system.
EP02798704A 2001-09-05 2002-09-02 Method and device for draining waste water in the inner bend of a beam blank casting machine Expired - Lifetime EP1423220B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10143419A DE10143419A1 (en) 2001-09-05 2001-09-05 Removal of water draining down inner curve of continuously-cast I-beam preform profile, uses opposed jets to raise water for collection in sinter channel
DE10143419 2001-09-05
PCT/EP2002/009779 WO2003024647A1 (en) 2001-09-05 2002-09-02 Method and device for draining waste water in the inner bend of a beam blank casting machine

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Publication Number Publication Date
EP1423220A1 true EP1423220A1 (en) 2004-06-02
EP1423220B1 EP1423220B1 (en) 2005-11-16

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EP02798704A Expired - Lifetime EP1423220B1 (en) 2001-09-05 2002-09-02 Method and device for draining waste water in the inner bend of a beam blank casting machine

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EP (1) EP1423220B1 (en)
JP (1) JP4325992B2 (en)
KR (1) KR100923269B1 (en)
CN (1) CN1267218C (en)
AT (1) ATE309876T1 (en)
DE (2) DE10143419A1 (en)
RU (1) RU2293623C2 (en)
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JP2011526205A (en) * 2008-06-06 2011-10-06 ノベリス・インコーポレイテッド Method and apparatus for removing cooling water from ingot using water jet
EP2226139B1 (en) * 2009-03-07 2016-09-28 SMS Concast AG Continuous casting method and device for creating preliminary forms, in particular double-t preliminary forms
KR101278002B1 (en) * 2011-06-29 2013-06-27 현대제철 주식회사 Apparatus for removing cooling water remained
CN104999046B (en) * 2015-07-23 2018-01-23 内蒙古包钢钢联股份有限公司 A kind of special-shaped billet continuous casting machine and casting for shaped blank continuous secondary cooling blows water method
CN106541100B (en) * 2017-01-23 2018-12-14 中冶赛迪工程技术股份有限公司 H-type billet continuous casting machine inner arc expelling water device
CN110538974A (en) * 2019-06-21 2019-12-06 中达连铸技术国家工程研究中心有限责任公司 Sectional type continuous casting slab surface rapid cooling device and method

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US20040255987A1 (en) 2004-12-23
RU2293623C2 (en) 2007-02-20
ATE309876T1 (en) 2005-12-15
CN1551812A (en) 2004-12-01
UA77698C2 (en) 2007-01-15
JP2005502474A (en) 2005-01-27
JP4325992B2 (en) 2009-09-02
DE50204965D1 (en) 2005-12-22
EP1423220B1 (en) 2005-11-16
RU2004110044A (en) 2005-10-10
CN1267218C (en) 2006-08-02
KR20040031058A (en) 2004-04-09
WO2003024647A8 (en) 2004-02-26
DE10143419A1 (en) 2003-03-20
KR100923269B1 (en) 2009-10-23
WO2003024647A1 (en) 2003-03-27

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