EP1423220B1 - 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 Download PDFInfo
- Publication number
- EP1423220B1 EP1423220B1 EP02798704A EP02798704A EP1423220B1 EP 1423220 B1 EP1423220 B1 EP 1423220B1 EP 02798704 A EP02798704 A EP 02798704A EP 02798704 A EP02798704 A EP 02798704A EP 1423220 B1 EP1423220 B1 EP 1423220B1
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- European Patent Office
- Prior art keywords
- beam blank
- water
- waste water
- inner bend
- profile
- 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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- 238000005266 casting Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002351 wastewater Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 15
- 238000001816 cooling Methods 0.000 description 13
- 239000003657 drainage water Substances 0.000 description 11
- 238000005245 sintering Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 239000002826 coolant Substances 0.000 description 5
- 238000009749 continuous casting Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
-
- 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 arc of the strand guide of a beam blank casting machine, wherein the drain water collecting in the inner arc of the beam blank profile in the area of a discharge device by the action of high-energy, against his Running direction of directed jets forms a back pressure, the drain water due to the dynamic pressure over the lateral profile edges of the inner arch is raised.
- a Beam Blank caster the potted format within the Strand guide brought to fürerstarrung.
- the first solidification takes place in the mold by heat conduction to water-cooled copper plates.
- the beam blank profile is in produced a casting radius. Due to the principle accumulates on the inner arc of the beam blank profile drainage water. This adds up in strand withdrawal direction from nozzle row to nozzle row, and hinders the heat transfer on the one hand by spray cooling and on the other hand leads to a water accumulation the cutting machine. It is known that the excess water with a suction device and divert separately from the continuous casting plant.
- Such a suction device on a beam blank casting machine is from the Document JP 58 15 7559 A1.
- the cooling water remains through a knife-like inlet suction pipe taken up and by the negative pressure at the end of a round cross section sucked formed starting tube.
- the negative pressure is caused by a concentric Jacket tube generated, in soft air vacuum at the end of the output tube flows along.
- the suction pressure is correspondingly low and only allows to absorb the last remains of the cooling water.
- Beam Blank-Profiles or Vorprofilstrlinde are shaped so that you Keep remaining amounts of water between the side profile edges, so that these only have to be removed between these surveys. Since the place and Space conditions are already cramped by the support roller frame, it lacks one sufficient space to devices for the removal of cooling water provided. In addition, the existing space is already used so far that additional facilities would be annoying.
- the document JP 58 157 559 A describes an apparatus for deriving Cooling water from a profile with two lateral edges. With the help of the device cooling water is dammed up from the gutter between the side edges and to Side derived, with residual cooling water sucked by means of an ejector and is derived.
- Document DE 835 501 C describes a method for casting a metal strand, in which the emerging from the mold strand by a on the Strand flowing down liquid coolant is cooled, the coolant in a spaced from the mold, traversed by the strand, collected against the coolant outlet cup-shaped container becomes. Part of the compressed air blows through an annular gap in the chamber and tears off the coolant emerging from the annular gap from the metal strand, so that it can drain off the conical bottom through a pipe.
- the document DE 976 189 discloses a method for controlling the cooling of blocks produced by the continuous casting process, which are initially indirect in the mold and then immediately cooled, where the immediate Cooling of the blocks is stopped before this one the occurrence of strong Achieve voltages enabling temperature.
- the exclusively by means cooling liquid flowing downwards along the surface of the blocks Immediate cooling is achieved by immediately draining the entire coolant by means of the blocks leaving crevices enclosing collecting plates and one through the gaps against the flow direction of the cooling liquid passed through gaseous agent broken off.
- the invention has the object based, a method and an apparatus for draining drain water from the inner arc of a beam blank profile to create the tight conditions meets pre-profile casting lines and at the same time a ensures extensive removal of the effluent residual water.
- the problem is in a method for draining drain water from the Inner arc of the strand guide of a Beam Blank casting machine, according to the Preamble of claim 1 according to the invention solved by that the effluent water is discharged into an underlying Sinterrinne and the wastewater collected in the sintering trough for treatment in the water industry passed the system and returned to the casting machine.
- the invention utilizes the open water present by the cooling with the the transfer point to the discharge device available jet pressure.
- the rays of this medium emitted from bundle nozzles lift up the im Inner arc of the beam blank profile gently flowing drain water on and Guides it over the edges of the Beam Blank profile to drain into the underneath Scale flume. This has the advantage that the flange edges of the Beam blank profiles by draining the water no undefined cooling Experienced.
- the drain water After lifting the drainage water over the lateral edges of the beam Blank profile, the drain water flows controlled into the discharge device. That so discharged water flows into the underlying sintering trough. Their job is in collecting the drainage water, the scale and the foundry powder residues from the cooling process in the casting arc.
- the sintering trough is seen in the longitudinal section of such a system below the G confusebogens arranged and formed in such a width that they from the G confusebogen falling water, which with scale and G manpulver Wegwalln enriched as much as possible.
- the collected and with Solids contaminated cooling water is processed in the water management of the system and then returned again as cooling water of the Beam Blank casting machine.
- a device for draining drainage water from the inner arc of the strand guide a beam blank casting machine for carrying out the method comprises a discharge device at the bottom of the inner arc of the strand guide between lateral edges of the beam blank profile, wherein the discharge device guided in height adjustable in guide rails and to a supply pipe for a Pressure medium is connected to generate the nozzle jets, and jet nozzles for emitting the drainage water in the inner arc of the beam blank profile oppositely directed high-energy nozzle jets are arranged.
- a sintering trough is located in a region below the discharge device for catching from the inner arch of the beam blank profile overflowing Downstream arranged, which provided with at least one drainage member this is advantageous with a cleaning and water recycling system the water industry is connected.
- a Beam Blank casting machine can be used with any type of casting machine Be provided number of casting strands. Will a Beam Blank Caster for designed several casting formats, so the discharge device with a replaceable head equipped. Depending on the format to be cast, the dimensions will be one the beam blank tuned nozzle assembly / Ableitan Aunt provided in any case, this to the beam blank in a defined position must be brought. As a result, the discharge device can also by means of Roll positioned offset from the inner bow. Here, the process engineering optimal position are used.
- Figure 1 is a side view of a beam blank casting machine to see, with a Mold 2, a strand guide 3, with guide rollers and with spray nozzles 5, the cooling water between the rollers of the strand guide 3 for cooling the cast Beam blanks, e.g. a Vorprofil for the Suspray supply.
- the The Spotify cooling water collects in the inner arc of the strand guide 3 and runs in the inner bow 4 of the Beam Blank profile on the bridge between the lateral profile edges 11 in strand withdrawal direction.
- the drainage water adds in strand withdrawal direction from nozzle row to nozzle row and hinders the one hand, the heat transfer by spray cooling and leads on the other hand, to a water accumulation, the controlled cooling of the Beam blanks obstructed.
- the drain water by means of a discharge device. 6 from the surface of the beam blanks in the area of the Beam Blank inner arc 4 derived.
- the drain water 7 of the discharge is in a below the strand guide arranged sintering 9 collected and is from the Sinterrinnne 9 by means of a Wegorgangs 20 for treatment in the water industry directed the investments and of this u.a. to the water cooler the beam blank casting machine returned, which is not shown in detail is.
- the discharge device 6 is, as Figure 2 reveals, in the lower region of the Inner arc of the strand guide 3 and there between the lateral profile edges 11 of the beam blank profile, the so-called "Tips", height adjustable between Guide rails 19 arranged.
- a supply line 18 for the pressure medium 15 with a pipe bend in a guide 17 also guided adjustable in height.
- the height adjustment of the discharge device is provided, depending on the type and amount of the drain water 7 to regulate an optimal flow function and to ensure this.
- FIG. 2 also shows purely schematically that the discharge device 6 for dividing the drainage water 7 from the upper profile cross-section 10 of Beam blank with nozzles for the formation of hard high-energy jet nozzles 13, 14 is abandoned briefly and to support the function of the jets is provided with mudguards 21 on the profile edges 11.
- the high-energy Nozzle jets are directed against the drainage direction of the drainage water and lift the drainage water over the side by forming a back pressure Profile edges 11 of the inner arc of the beam blank profile, so that the Drain water into the arranged below sintering channel 9 (see Figure 1) can.
- pressurized water is used for generating the nozzle jets 13, 14, pressurized water is used. According to the invention, however, it is also provided that for generating the nozzle jets 13, 14 air or an air / water mixture can be used.
- Figure 3 shows the cross section of a beam blank profile with its web 12 and its lateral profile edges 11. From spray water nozzles 5 are cooling Nozzle jets 5 'passed to the beam blank profile. It can be seen that collects the drain water 7 on top of the web 12 and from this in Strand guiding direction runs down.
- Figure 4 shows a plan view of the measures for the discharge of the drain water 7 from the land area 12 of the beam blank profile.
- pressurized water fed to the jet nozzles 8 via the pressure water connection 15.
- the high-energy nozzle jets 13, 14 are against the flow direction of the Downstream 7 directed and the beam energy is such that the Drainage is slightly raised and lateral over the profile edges 11 of the Beam blank profile is derived.
- 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 Middle web 12, and with a nozzle assembly 8 for generating the Nozzle jets, obliquely opposite to the surge of drainage water 7.
- the method and the device according to the invention are not on the above described embodiment, but also include Further variants, provided that they satisfy the inventive concept.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Spray Control Apparatus (AREA)
- Cleaning In General (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Ableiten von Ablaufwasser im Innenbogen der Strangführung einer Beam Blank-Gießmaschine, wobei das sich im Innenbogen des Beam-Blank-Profils sammelnde Ablaufwasser im Bereich einer Ableitvorrichtung durch Einwirkung energiereicher, gegen seine Laufrichtung gerichteter Düsenstrahlen einen Staudruck ausbildet, wobei das Ablaufwasser durch den Staudruck über die seitlichen Profilränder des Innenbogens angehoben wird.The invention relates to a method and a device for draining waste water in the inner arc of the strand guide of a beam blank casting machine, wherein the drain water collecting in the inner arc of the beam blank profile in the area of a discharge device by the action of high-energy, against his Running direction of directed jets forms a back pressure, the drain water due to the dynamic pressure over the lateral profile edges of the inner arch is raised.
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, das Überschußwasser mit einer Absaugvorrichtung aufzunehmen und gesondert von der Stranggießanlage abzuleiten.In a Beam Blank caster, the potted format within the Strand guide brought to Durcherstarrung. The first solidification takes place in the mold by heat conduction to water-cooled copper plates. The further heat dissipation within the strand guide by roller contact, heat dissipation over Spray water nozzles and heat radiation achieved. The beam blank profile is in produced a casting radius. Due to the principle accumulates on the inner arc of the beam blank profile drainage water. This adds up in strand withdrawal direction from nozzle row to nozzle row, and hinders the heat transfer on the one hand by spray cooling and on the other hand leads to a water accumulation the cutting machine. It is known that the excess water with a suction device and divert separately from the continuous casting plant.
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 weichem 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 from the Document JP 58 15 7559 A1. According to this prior art device the cooling water remains through a knife-like inlet suction pipe taken up and by the negative pressure at the end of a round cross section sucked formed starting tube. The negative pressure is caused by a concentric Jacket tube generated, in soft air vacuum at the end of the output tube flows along. The suction pressure is correspondingly low and only allows to absorb the last remains of the cooling water.
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, sodass Kühlwasserreste zu beiden Seiten des Gießstranges ablaufen und gesondert aufgefangen werden müssen.There is still an inclined surface for draining above the inlet suction pipe larger amounts of residual cooling water, located above the inlet intake manifold in opposite transverse directions divides, so that cooling water residues to run off both sides of the cast strand and be collected separately have to.
Prinzipiell sind Beam Blank-Profile bzw. Vorprofilstränge so geformt, dass Sie Restwassermengen zwischen den seitlichen Profilrändern halten, sodass 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 soweit ausgenutzt, dass zusätzliche Einrichtungen nur störend wären.In principle, Beam Blank-Profiles or Vorprofilstränge are shaped so that you Keep remaining amounts of water between the side profile edges, so that these only have to be removed between these surveys. Since the place and Space conditions are already cramped by the support roller frame, it lacks one sufficient space to devices for the removal of cooling water provided. In addition, the existing space is already used so far that additional facilities would be annoying.
Das Dokument WO-A-96 01712 erwähnt, dass es beim Bogen-Stranggießen von Beam Blank-Profil schwierig ist, das auch der einen Kanal für das Kühlwasser bildenden Oberseite des Profils im Kanal ablaufende Kühlwasser gleichmäßig zu entfernen und dass hierfür Ventilatoren mit starken Luftdüsenstrahlen eingesetzt werden müssen.The document WO-A-96 01712 mentions that it is used in continuous arc casting of Beam blank profile is difficult, which is also the one channel for the cooling water forming To the top of the profile in the channel running cooling water evenly remove and that for this fan used with strong air jets Need to become.
Eine ähnliche Aussage findet sich für das Stranggießen von Rechteck-Querschnitten in dem Dokument GB-A-1 123 716, wonach am Ende einer Sekundärkühlzone angeordnete Druckluftleitungen mit entgegengesetzt zum ablaufenden Kühlwasser ausgerichteten Düsenöffnungen und ein darunter befindlicher Wassersammeltank angeordnet sind.A similar statement can be found for the continuous casting of rectangular cross-sections in document GB-A-1 123 716, according to which at the end of a secondary cooling zone arranged compressed air lines with opposite to the expiring Cooling water aligned nozzle openings and a befindlicher underneath Water collection tank are arranged.
Das Dokument JP 58 157 559 A beschreibt eine Vorrichtung zum Ableiten von Kühlwasser aus einem Profil mit zwei seitlichen Rändern. Mit Hilfe der Vorrichtung wird Kühlwasser aus der Rinne zwischen den Seitenrändern aufgestaut und zur Seite abgeleitet, wobei restliches Kühlwasser mit Hilfe eines Ejektors angesaugt und abgeleitet wird.The document JP 58 157 559 A describes an apparatus for deriving Cooling water from a profile with two lateral edges. With the help of the device cooling water is dammed up from the gutter between the side edges and to Side derived, with residual cooling water sucked by means of an ejector and is derived.
Das Dokument DE 835 501 C beschreibt ein Verfahren zum Gießen eines Metallstranges, bei dem der aus der Gießform austretende Strang durch ein an dem Strang herabfließendes flüssiges Kühlmittel gekühlt wird, wobei das Kühlmittel in einem im Abstand von der Gießform angeordneten, von dem Strang durchwanderten, gegen den Kühlmittelaustritt abgedichtet tassenförmigen Behälter aufgefangen wird. Ein Teil der Druckluft bläst durch einen Ringspalt in die Kammer und reißt dabei das aus dem Ringspalt austretende Kühlmittel vom Metallstrang los, so dass es über den kegligen Boden durch ein Rohr abfließen kann.Document DE 835 501 C describes a method for casting a metal strand, in which the emerging from the mold strand by a on the Strand flowing down liquid coolant is cooled, the coolant in a spaced from the mold, traversed by the strand, collected against the coolant outlet cup-shaped container becomes. Part of the compressed air blows through an annular gap in the chamber and tears off the coolant emerging from the annular gap from the metal strand, so that it can drain off the conical bottom through a pipe.
Das Dokument DE 976 189 offenbart ein Verfahren zum Regeln der Abkühlung von nach dem Stranggießverfahren hergestellten Blöcken, die zunächst mittelbar in der Kokille und dann unmittelbar gekühlt werden, bei dem die unmittelbare Kühlung der Blöcke abgebrochen wird, bevor diese eine das Auftreten von starken Spannungen ermöglichende Temperatur erreichen. Die ausschließlich mittels entlang der Oberfläche der Blöcke abwärts strömende Kühlflüssigkeit erfolgende unmittelbare Kühlung wird durch unverzügliches Ableiten der gesamten Kühlflüssigkeit mittels die Blöcke unter Freilassung von Spalten umschließender Auffangplatten und eines durch die Spalten entgegen der Strömungsrichtung der Kühlflüssigkeit hindurch geleiteten gasförmigen Mittels abgebrochen.The document DE 976 189 discloses a method for controlling the cooling of blocks produced by the continuous casting process, which are initially indirect in the mold and then immediately cooled, where the immediate Cooling of the blocks is stopped before this one the occurrence of strong Achieve voltages enabling temperature. The exclusively by means cooling liquid flowing downwards along the surface of the blocks Immediate cooling is achieved by immediately draining the entire coolant by means of the blocks leaving crevices enclosing collecting plates and one through the gaps against the flow direction of the cooling liquid passed through gaseous agent broken off.
Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung 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 Vorprofilstrang-Gießanlagen gerecht wird und gleichzeitig eine weitgehende Entfernung des ablaufenden Restwassers gewährleistet. Based on the aforementioned prior art, the invention has the object based, a method and an apparatus for draining drain water from the inner arc of a beam blank profile to create the tight conditions meets pre-profile casting lines and at the same time a ensures extensive removal of the effluent residual water.
Die Aufgabe wird bei einem Verfahren zum Ableiten von Ablaufwasser aus dem Innenbogen der Strangführung einer Beam Blank-Gießmaschine, gemäß dem Oberbegriff des Anspruchs 1 nach der Erfindung dadurch gelöst, dass das Ablaufwasser in eine darunter befindliche Sinterrinne abgeleitet wird und das in der Sinterrinne gesammelte Ablaufwasser zur Aufbereitung in die Wasserwirtschaft der Anlage geleitet und zur Gießmaschine zurückgeführt wird.The problem is in a method for draining drain water from the Inner arc of the strand guide of a Beam Blank casting machine, according to the Preamble of claim 1 according to the invention solved by that the effluent water is discharged into an underlying Sinterrinne and the wastewater collected in the sintering trough for treatment in the water industry passed the system and returned to the casting machine.
Die Erfindung nutzt das durch das Kühlung vorhandene offene Wasser mit dem an der Übergabestelle zur Ableitvorrichtung zur Verfügung stehenden Strahldruck. Die aus Bündeldüsen emittierten Strahlen dieses Mediums heben dabei das im Innenbogen des Beam Blank-Profils heranfließende Ablaufwasser leicht an und leitet es über die Ränder des Beam Blank-Profils zum Ablauf in die darunter angeordnete Sinterrinne. Hierdurch ergibt sich der Vorteil, dass die Flanschkanten des Beam Blank-Profils durch das Ableiten des Wassers keine undefinierte Kühlung erfahren.The invention utilizes the open water present by the cooling with the the transfer point to the discharge device available jet pressure. The rays of this medium emitted from bundle nozzles lift up the im Inner arc of the beam blank profile gently flowing drain water on and Guides it over the edges of the Beam Blank profile to drain into the underneath Scale flume. This has the advantage that the flange edges of the Beam blank profiles by draining the water no undefined cooling Experienced.
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. Deren Aufgabe besteht im Sammeln des Ablaufwassers, des Zunders und der Gießpulverrückstände aus dem Kühlprozess im Gießbogen.After lifting the drainage water over the lateral edges of the beam Blank profile, the drain water flows controlled into the discharge device. That so discharged water flows into the underlying sintering trough. Their job is in collecting the drainage water, the scale and the foundry powder residues from the cooling process in the casting arc.
Die Sinterrinne ist im Längsschnitt einer solchen Anlage gesehen unterhalb des Gießbogens angeordnet und in einer solchen Breite ausgebildet, dass sie das vom Gießbogen herabfallende Wasser, welches mit Zunder und Gießpulverrückständen angereichert ist, möglichst weitgehend auffängt. Das gesammelte und mit Feststoffen belastete Kühlwasser wird in der Wasserwirtschaft der Anlage aufbereitet und danach wieder als Kühlwasser der Beam Blank-Gießmaschine zurückgeführt. The sintering trough is seen in the longitudinal section of such a system below the Gießbogens arranged and formed in such a width that they from the Gießbogen falling water, which with scale and Gießpulverrückständen enriched as much as possible. The collected and with Solids contaminated cooling water is processed in the water management of the system and then returned again as cooling water of the Beam Blank casting machine.
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 to generate the jets of pressurized water is used. With advantage can but also for generating the jets of air or an air / water mixture be used.
Eine Vorrichtung zum Ableiten von Ablaufwasser aus dem Innenbogen der Strangführung einer 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 angeschlossen ist, und Strahldüsen zum Emittieren von dem Ablaufwasser im Innenbogen des Beam-Blank-Profils entgegengerichteten energiereichen Düsenstrahlen angeordnet sind.A device for draining drainage water from the inner arc of the strand guide a beam blank casting machine for carrying out the method comprises a discharge device at the bottom of the inner arc of the strand guide between lateral edges of the beam blank profile, wherein the discharge device guided in height adjustable in guide rails and to a supply pipe for a Pressure medium is connected to generate the nozzle jets, and jet nozzles for emitting the drainage water in the inner arc of the beam blank profile oppositely directed high-energy nozzle jets are arranged.
Erfindungsgemäß ist in einem Bereich unterhalb der Ableitvorrichtung eine Sinterrinne zum Auffangen von aus dem Innenbogen des Beam Blank-Profils überlaufenden Ablaufwassers angeordnet, die mit wenigstens einem Ablauforgan versehen ist, wobei dieses vorteilhaft mit einer Reinigungs- und Wasserrückführanlage der Wasserwirtschaft in Verbindung steht.According to the invention, a sintering trough is located in a region below the discharge device for catching from the inner arch of the beam blank profile overflowing Downstream arranged, which provided with at least one drainage member this is advantageous with a cleaning and water recycling system the water industry is connected.
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.Depending on the casting format, a Beam Blank casting machine can be used with any type of casting machine Be provided number of casting strands. Will a Beam Blank Caster for designed several casting formats, so the discharge device with a replaceable head equipped. Depending on the format to be cast, the dimensions will be one the beam blank tuned nozzle assembly / Ableitanordnung provided in any case, this to the beam blank in a defined position must be brought. As a result, the discharge device can also by means of Roll positioned offset from the inner bow. Here, the process engineering optimal position are used.
Einzelheiten, Merkmale und weitere Vorteile der Erfindung ergeben sich aus der nachstehenden Erläuterung eines in den Zeichnungen schematisch dargestellten Ausführungsbeispieles. Es zeigen:
- 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,
Figur 2- den Beam Blank-Innenbogen in Seitenansicht mit darin angeordneter Ableitvorrichtung,
- Figur 3
- das Beam Blank-Profil im Querschnitt einer Wasser-Ablaufströmung und oberen Ableit-Strahldüsen sowie unteren Düsenstrahlen zur gleichmäßigen Kühlung,
- Figur 4
- in Draufsicht einen Bereich der Ableitvorrichtung mit Ablaufwasser und entgegengerichteten Sprühstrahlen,
Figur 5- in perspektivischer Ansicht einen Abschnitt des Beam Blank-Profils mit einer Ableitvorrichtung,
- FIG. 1
- a side view of a beam blank casting machine, comprising a mold and including a strand guide with inner bow and with a discharge device arranged therein for drainage and with an underlying sintering trough,
- FIG. 2
- the Beam Blank inner arc in side view with discharge device arranged therein,
- FIG. 3
- the beam blank profile in the cross section of a water discharge flow and upper discharge jet nozzles and lower jet streams for uniform cooling,
- FIG. 4
- in plan view, a region of the discharge device with drainage water and oppositely directed spray jets,
- FIG. 5
- a perspective view of a portion of the beam blank profile with a discharge device,
In Figur 1 ist in Seitenansicht eine Beam Blank-Gießmaschine zu sehen, mit einer
Kokille 2, einer Strangführung 3, mit Führungsrollen und mit Spritzwasserdüsen 5,
die Kühlwasser zwischen die Rollen der Strangführung 3 zur Kühlung des gegossenen
Beam Blanks, z.B. eines Vorprofils für die Trägerwalzung, zuführen. In Figure 1 is a side view of a beam blank casting machine to see, with a
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.The aufgeduste cooling water collects in the inner arc of the strand guide 3 and runs in the inner bow 4 of the Beam Blank profile on the bridge between the lateral profile edges 11 in strand withdrawal direction. The drainage water adds in strand withdrawal direction from nozzle row to nozzle row and hinders the one hand, the heat transfer by spray cooling and leads on the other hand, to a water accumulation, the controlled cooling of the Beam blanks obstructed.
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 Ableiteinrichtung 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 Anläge geleitet und von dieser u.a. zu der Wasserkühleinrichtung
der Beam Blank-Gießmaschine zurückgeführt, was im Einzelnen nicht dargestellt
ist.To prevent this, the drain water by means of a discharge device. 6
from the surface of the beam blanks in the area of the Beam Blank inner arc
4 derived. The
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 zwischen
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
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, depending on the type
and amount of the
In Figur 2 ist weiterhin rein schematisch gezeigt, dass die Ableitvorrichtung 6
zum Abteilen des Ablaufwassers 7 aus dem oberen Profilquerschnitt 10 des
Beam Blank mit Düsen zur Ausbildung von harten energiereichen Düsenstrahen
13, 14 ausgebildät ist und zur Unterstützung der Funktion der Düsenstrahlen
mit Schutzblechen 21 auf den Profilrändern 11 versehen ist. Die energiereichen
Düsenstrahlen sind gegen die Ablaufrichtung 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.FIG. 2 also shows purely schematically that the
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.Figure 3 shows the cross section of a beam blank profile with its
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 Ablaufrichtung 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 the discharge of the
Figur 5 zeigt in einer perspektivischen Ansicht ein Stück eines Beam Blank-Profils
im Querschnitt 10 mit den Profilrändern bzw. "Tips" 11 und dem verbindenden
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
Das Verfahren und die Vorrichtung gemäß der Erfindung sind nicht auf das zuvor beschriebene Ausführuhgsbeispiel beschränkt, sondern umfassen auch weitere Ausführungsvarianten, sofern sie dem Erfindungsedanken genügen. The method and the device according to the invention are not on the above described embodiment, but also include Further variants, provided that they satisfy the inventive concept.
- 11
- Beam Blank-GießmaschineBeam blank caster
- 22
- Kokillemold
- 33
- Strangführungstrand guide
- 44
- Innenbogeninside bend
- 5, 5'5, 5 '
- Spritzwasserdüse, SpritzwasserSpray nozzle, splash water
- 66
- Ableitvorrichtungdiverter
- 77
- Ablaufwasserdrain water
- 88th
- Düsen (Wasser/Luft)Nozzles (water / air)
- 99
- Sinterrinnescale flume
- 1010
- Beam Blank QuerschnittBeam blank cross section
- 1111
- Tip (Rand)Tip (edge)
- 1212
- Stegweb
- 1313
- Düsenstrahlenjets
- 1414
- Düsenstrahlenjets
- 1515
- Druckwasser-AnschlußPressure Water Connection
- 1616
- Gießrichtungcasting
- 1717
- Führungguide
- 1818
- Druckrohrpressure pipe
- 1919
- Führungsprofilguide profile
- -20-20
- Ablauforganflow body
- 2121
- Schutzblechmudguard
Claims (5)
- Method of draining waste water (7) from the inner bend (4) of the strip guide (3) of a beam blank casting machine, wherein the waste water (7) collecting in the inner bend (4) of the beam blank profile (10) forms a banking-up pressure in the region of a discharge device (6) by the action of high-energy jets (13, 14) directed against the direction of water flow, wherein the waste water (7) is lifted by the banking-up pressure over the lateral profile edges (11) of the inner bend (4), characterised in that the waste water (7) is conducted into a sinter channel (9) disposed thereunder and the waste water (7) collected in the sinter channel (9) is conducted for preparation in the water resources of the plant and fed back to the casting machine.
- Method according to claim 1, characterised in that water under pressure is used for producing the jets (13, 14).
- Method according to claim 1, characterised in that air or an air/water mixture is used for producing the jets (13, 14).
- Device for draining waste water (7) away from the inner bend (4) of the strip guide (3) of a beam blank casting machine, for carrying out the method according to at least one of the preceding claims, wherein a discharge device (6) is guided at a lower region of the inner bend of the strip guide (3) between lateral edges (11) of the beam blank profile in guide rails (19) to be adjustable in height and is connected with a feed pipe (18) for a pressure medium for producing the jets (13, 14) and jet nozzles (8) are arranged for emitting high-energy jets (13, 14) directed against the waste water (7) in the inner bend (4) of the beam blank profile, characterised in that a sinter channel (9) for collection of waste water (7) overflowing from the inner bend (4) of the beam blank profile (10) is arranged in a region below the discharge device (6) and is provided with at least one outflow element (20) and the sinter channel (9) is connected with a cleaning and water feedback plant by way of the outflow element (20).
- Device according to claim 4, characterised in that protective plates (21) are provided in the region of the discharge device (6) on the edges (11) of the beam blank profile (10).
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1423220A1 EP1423220A1 (en) | 2004-06-02 |
| EP1423220B1 true EP1423220B1 (en) | 2005-11-16 |
Family
ID=7697740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20040255987A1 (en) |
| 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) |
| UA (1) | UA77698C2 (en) |
| WO (1) | WO2003024647A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110022659A (en) * | 2008-06-06 | 2011-03-07 | 노벨리스 인코퍼레이티드 | Method and apparatus for removal of cooling water from ingots by means of water jets |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE835501C (en) * | 1942-02-25 | 1952-03-31 | Wieland Werke Ag | Method and device for continuous casting of metal bars |
| DE976189C (en) * | 1944-12-13 | 1963-04-25 | Beteiligungs & Patentverw Gmbh | Process for regulating the cooling of blocks produced by the continuous casting process |
| US2705353A (en) * | 1952-04-04 | 1955-04-05 | Kaiser Aluminium Chem Corp | Method of continuous casting |
| GB1123716A (en) * | 1966-02-26 | 1968-08-14 | G Sojuzny I Projektirovanya Me | Improvements in or relating to the removing of cooling liquid from the surface of a casting below the secondary cooling zone of a continuous metal casting machine |
| JPS58157559A (en) * | 1982-03-12 | 1983-09-19 | Mitsubishi Heavy Ind Ltd | Removing device of cooling water from continuous casting ingot of beam blank type |
| ES2094686B1 (en) * | 1994-07-07 | 1997-12-16 | Siderurgica Aristrain Madrid S | CONTINUOUS CASTING PROCESS. |
| JP3114000B2 (en) * | 1994-10-12 | 2000-12-04 | 新日本製鐵株式会社 | Continuous casting equipment |
-
2001
- 2001-09-05 DE DE10143419A patent/DE10143419A1/en not_active Withdrawn
-
2002
- 2002-02-09 UA UA2004042507A patent/UA77698C2/en unknown
- 2002-09-02 KR KR1020047003344A patent/KR100923269B1/en not_active IP Right Cessation
- 2002-09-02 DE DE50204965T patent/DE50204965D1/en not_active Expired - Lifetime
- 2002-09-02 AT AT02798704T patent/ATE309876T1/en active
- 2002-09-02 EP EP02798704A patent/EP1423220B1/en not_active Expired - Lifetime
- 2002-09-02 WO PCT/EP2002/009779 patent/WO2003024647A1/en active IP Right Grant
- 2002-09-02 CN CNB028173333A patent/CN1267218C/en not_active Expired - Fee Related
- 2002-09-02 JP JP2003528336A patent/JP4325992B2/en not_active Expired - Fee Related
- 2002-09-02 US US10/488,903 patent/US20040255987A1/en not_active Abandoned
- 2002-09-02 RU RU2004110044/02A patent/RU2293623C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1267218C (en) | 2006-08-02 |
| KR20040031058A (en) | 2004-04-09 |
| RU2004110044A (en) | 2005-10-10 |
| WO2003024647A8 (en) | 2004-02-26 |
| US20040255987A1 (en) | 2004-12-23 |
| JP4325992B2 (en) | 2009-09-02 |
| WO2003024647A1 (en) | 2003-03-27 |
| ATE309876T1 (en) | 2005-12-15 |
| KR100923269B1 (en) | 2009-10-23 |
| DE10143419A1 (en) | 2003-03-20 |
| DE50204965D1 (en) | 2005-12-22 |
| UA77698C2 (en) | 2007-01-15 |
| JP2005502474A (en) | 2005-01-27 |
| RU2293623C2 (en) | 2007-02-20 |
| EP1423220A1 (en) | 2004-06-02 |
| CN1551812A (en) | 2004-12-01 |
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