WO2008119419A1 - Burner arrangement - Google Patents
Burner arrangement Download PDFInfo
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- WO2008119419A1 WO2008119419A1 PCT/EP2008/001570 EP2008001570W WO2008119419A1 WO 2008119419 A1 WO2008119419 A1 WO 2008119419A1 EP 2008001570 W EP2008001570 W EP 2008001570W WO 2008119419 A1 WO2008119419 A1 WO 2008119419A1
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- Prior art keywords
- burner
- segments
- pore
- arrangement according
- pore burner
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/16—Radiant burners using permeable blocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
- B22D41/01—Heating means
- B22D41/015—Heating means with external heating, i.e. the heat source not being a part of the ladle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/60—Pouring-nozzles with heating or cooling means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
Definitions
- the invention relates to a burner arrangement for heating or for keeping warm, in particular G confusestrahlschutz- and / or Tauchausgussurbanen particular a continuous casting.
- the molten liquid metal is usually brought by means of a pan to the casting stand of a continuous casting plant.
- the molten metal flows out of the ladle into a distributor through a pouring-beam protection, such as a shadow tube.
- the metal flows through a submersible nozzle, such as a dip tube, in the mold of the continuous casting.
- Immersion tube and possibly shadow tube are preheated before pouring, usually not in the casting operation.
- a burner with fossil fuels, such as natural gas, and with oxygen carriers, such as air operated.
- conventionally commercially available burners are used which heat a container in which the dip tube or the shadow tube is arranged.
- a burner is used, which is the shadow tube or the immersion tube heated directly and without the interposition of a container with the flame.
- Such burners have become known, for example, from JP 61262455 A, EP 0 775 543 B1, EP 0 495 764 B1 and KR 1020050114398 A.
- the electric heating has been disclosed by JP 10118746 and DE 196 51 533 C2.
- the electric heating has the disadvantage that the efficiency is particularly unfavorable, so that the primary energy demand is relatively high and thus the process is not very economical.
- the object of the invention is to provide a burner arrangement for heating or for keeping warm, in particular of G confusestrahlschutz- and / or Tauchausguss adopteden particular a continuous casting, which achieves improved utilization of the energy used, a reduction in the emission of CO 2 and high availability of the system. It is another object of the invention to provide a method for advantageously controlling a burner assembly.
- the object with regard to the burner arrangement is achieved with a burner arrangement, in particular for heating or keeping warm, in particular Gellostrahlschutz- and / or Tauchausguss droveen a continuous casting with a particular shadow tube or a dip tube receptive container, wherein the wall of the container at least partially formed by at least one pore burner is.
- the pore burner preferably has a plurality of pore burner segments. These are then connected to each other to the pore burner or formed in one piece or in one piece.
- the pore burner segments of the pore burner form rings and / or rows viewed in the axial direction. Furthermore, it is advantageous if the pore burner consists of pore burner segments, with a plurality of segments forming rings or rows in the circumferential direction. In one embodiment of the invention, it is expedient for the pore burner segments of the pore burner to be arranged hexagonal or octagonal in the circumferential direction.
- the container has a bottom and / or a lid, which consist of a bottom-side and / or lid-side plate.
- the pore burner segments are each supplied with fuel by means of supply lines, in particular from radially outside.
- the leads from the segments can be guided radially outward and possibly extend axially in a further supply line section.
- the supply lines are supplied with fuel via a common supply line. It may be expedient if the supply line or the supply lines is substantially annular and is in communication with supply lines. In this case, the ring must not be completely closed, the ring can also be closed advantageous.
- pore burner segments are switched on or off depending on the desired heating intensity or heating power. It may be advantageous if the segments are switched on or off, which are at least alternately distributed at the beginning of the pore burner. As a result, it can be advantageously achieved that operated and switched-off segments are distributed uniformly over the circumference. It is also expedient if segments are switched on or off, which are viewed in the axial direction of the pore burner in each adjacent or more distant other rings or rows of pore burner segments are arranged. This can advantageously be achieved that powered and disconnected
- O segments are evenly distributed over the axial length of the burner assembly.
- FIG. 1 is a sectional view in the vertical direction of a burner assembly according to the invention of a dip tube
- FIG. 2 is a sectional view in the horizontal direction of a burner arrangement according to the invention of a dip tube
- Fig. 3 is a sectional view in the vertical direction of a burner assembly according to the invention of a dip tube
- Fig. 4 is a sectional view in the horizontal direction of a burner assembly according to the invention a dip tube.
- the burner assembly 1 shows a sectional view of a burner assembly 1, in particular for heating or for keeping warm Gellostrahlschutz- and / or Tauchausgussurbanen particular from a continuous casting.
- the burner assembly 1 in this case provides a burner 3 arranged around a dip tube 2 which, according to the invention, is designed as a pore burner.
- the pore burner has the advantageous property that it allows combustion of a gas-air mixture in a porous structure or cell as a gas burner, which can be achieved virtually without the formation of an open flame. As a result, a flameless, volumetric combustion of the Gas-air mixture achieved. In this case, a combustion in the porous structure is thus achieved, so that after the introduction of the gas-air mixture as a reaction product, an exhaust gas stream is generated on the output side.
- the pore burner 3 shown in FIG. 1 is composed of several segments.
- the individual segments 3a, 3b, 3c, 3d are arranged viewed in the axial direction of the dip tube and each have their own supply line 4 of the fuel, the oxygen carrier or the fuel-air mixture, or they each have a supply line for the fuel and for an oxidizer, such as air.
- the air or oxygen can also be introduced or blown into the pore burners via a blower.
- the dip tube is furthermore arranged in an advantageously thermally insulated container 5, which is advantageously formed by the two bottom-side and cover-side plates 6, 7 and on its outer circumference the wall 8 is formed by the segments 3 a, 3 b, 3 c, 3 d of the pore burner 3 becomes.
- the segments are arranged side by side with a small joint spacing, so that an arrangement of the pore burners which is multi-row in section is formed.
- the segments 3 a, 3 b, 3 c, 3 d of the pore firing 3 are arranged essentially annularly or hexagonally or octagonally around the dip tube 2. This results in a quasi-tubular arrangement of the pore burner segments around the dip tube.
- the pore burner 3 generates a hot exhaust stream 9 and heat radiation 10 which are directed to the dip tube to heat it, to heat it or to temper it at the temperature.
- the hot exhaust gas enters the heating chamber of the interior of the container 5 at a relatively low speed, which causes a homogeneous temperature distribution in the interior of the container 5 and thus counteracts stratification.
- the dip tube can also be heated very well.
- the formation of the pore burner as a substantially annular or tubular arrangement, wherein the arrangement of individual segments of pore burners is composed. As a result, it can be advantageously controlled that individual segments or rows or rings of segments are switched on or off independently of one another or individual segments are switched on or off independently of one another.
- all pore burner segments can be switched on or individual segments can be switched off. It can be advantageous if segments are switched on or off, which are distributed at least alternately at the beginning. It can also be advantageous if the annular segments which are viewed in the axial direction of the dip tube are alternately switched on or off.
- Figures 3 and 4 show an embodiment in which a shadow tube 20 is provided with a burner assembly 21 according to the invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Burners (AREA)
Abstract
Description
Brenneranordnung burner arrangement
Beschreibungdescription
Technisches GebietTechnical area
Die Erfindung betrifft eine Brenneranordnung zur Beheizung oder zur Warmhaltung insbesondere von Gießstrahlschutz- und/oder Tauchausgusseinrichtungen insbesondere einer Stranggießanlage.The invention relates to a burner arrangement for heating or for keeping warm, in particular Gießstrahlschutz- and / or Tauchausgusseinrichtungen particular a continuous casting.
Stand der TechnikState of the art
In Schmelzbetrieben, wie beispielsweise in Stahlwerken mit Stranggießanlagen wird das geschmolzene flüssige Metall in der Regel mittels einer Pfanne an den Gießstand einer Stranggießanlage gebracht. Dabei strömt das geschmolzene Metall durch einen Gießstrahlschutz, wie beispielsweise ein Schattenrohr, aus der Pfanne in einen Verteiler. Aus dem Verteiler strömt das Metall durch einen Tauchausguss, wie beispielsweise ein Tauchrohr, in die Kokille der Stranggießanlage. Tauchrohr und eventuell Schattenrohr werden vor Gießstart vorgeheizt, im Gießbetrieb normalerweise nicht. Zur Beheizung wird dabei ein Brenner mit fossilen Brennstoffen, wie mit Erdgas, und mit Sauerstoffträgern, wie beispielsweise mit Luft, betrieben. Dabei werden üblicher Weise im Handel erhältliche Brenner verwendet, die einen Behälter heizen, in welchem das Tauchrohr oder das Schattenrohr angeordnet ist. Bei einem weiteren bekannten Beispiel wird ein Brenner verwendet, welcher das Schattenrohr oder das Tauch- rohr direkt und ohne Zwischenschaltung eines Behälters mit der Flamme beheizt.In smelting operations, such as in steel plants with continuous casting plants, the molten liquid metal is usually brought by means of a pan to the casting stand of a continuous casting plant. In the process, the molten metal flows out of the ladle into a distributor through a pouring-beam protection, such as a shadow tube. From the distributor, the metal flows through a submersible nozzle, such as a dip tube, in the mold of the continuous casting. Immersion tube and possibly shadow tube are preheated before pouring, usually not in the casting operation. For heating while a burner with fossil fuels, such as natural gas, and with oxygen carriers, such as air, operated. In this case, conventionally commercially available burners are used which heat a container in which the dip tube or the shadow tube is arranged. In another known example, a burner is used, which is the shadow tube or the immersion tube heated directly and without the interposition of a container with the flame.
Durch die Verwendung von handelsüblichen Brennern mit Flammenerzeugung wird ein sich schnell bewegendes Abgas erzeugt, das beim Erwärmen oder Hei- zen der Tauch- oder Schattenrohre eine Strähnenbildung verursacht und insgesamt einen geringen Anteil an Strahlungsenergie aufweist. Durch die Flamme wird das zu heizende Schattenrohr oder Tauchrohr nur punktuell aufgeheizt, was zu einer lokalen Überhitzung führen kann, wo die Flamme direkt auf das Rohr trifft und wobei andere Bereiche wiederum eher zu schwach erhitzt wer- den, wo die Flamme weit entfernt ist. Dadurch werden Spannungen im Tauchrohr oder im Schattenrohr verursacht, was zu Rissbildung und somit zum Ausfall der gesamten Anlage führen kann. Weiterhin ist durch die Erwärmung mit der Flamme der handelsüblichen Brenner der Energieverbrauch sehr hoch und der Ausstoß an CO2 ist ebenfalls sehr hoch. Dadurch sind die Kosten für die Energiebereitstellung hoch, was die Anlage unwirtschaftlich macht und darüber hinaus ist der Ausstoß der Verbrennungsabgase sehr hoch und insgesamt relativ weniger umweltfreundlich, was in der letzten Zeit im Rahmen der Diskussion um den Treibhauseffekt als besonders nachteilig empfunden wird.The use of commercially available burners with flame generation produces a rapidly moving exhaust gas which causes stratification during heating or heating of the immersion or shadow tubes and overall has a low proportion of radiant energy. The flame heats the shadow tube or dip tube to be heated only occasionally, which can lead to localized overheating, where the flame strikes the tube directly, and other areas tend to be heated too weakly, where the flame is far away. As a result, tensions in the dip tube or in the shadow tube caused, which can lead to cracking and thus the failure of the entire system. Furthermore, by heating with the flame of the commercial burner energy consumption is very high and the output of CO 2 is also very high. As a result, the cost of the energy supply is high, which makes the system uneconomical and also the output of the combustion gases is very high and relatively less environmentally friendly overall, which is perceived in recent times in the discussion of the greenhouse effect as particularly disadvantageous.
Solche Brenner sind beispielsweise durch die JP 61262455 A, die EP 0 775 543 B1 , die EP 0 495 764 B1 und die KR 1020050114398 A bekannt geworden.Such burners have become known, for example, from JP 61262455 A, EP 0 775 543 B1, EP 0 495 764 B1 and KR 1020050114398 A.
Darüber hinaus ist die elektrische Beheizung durch die JP 10118746 und die DE 196 51 533 C2 bekannt geworden. Die elektrische Beheizung hat jedoch den Nachteil, dass der Wirkungsgrad besonders ungünstig ist, so dass der Primärenergiebedarf relativ hoch ist und somit das Verfahren auch nicht sehr wirtschaftlich ist.In addition, the electric heating has been disclosed by JP 10118746 and DE 196 51 533 C2. However, the electric heating has the disadvantage that the efficiency is particularly unfavorable, so that the primary energy demand is relatively high and thus the process is not very economical.
Darstellung der Erfindung, Aufgabe, Lösung, Vorteile Aufgabe der Erfindung ist es, eine Brenneranordnung zur Beheizung oder zur Warmhaltung insbesondere von Gießstrahlschutz- und/oder Tauchausgusseinrichtungen insbesondere einer Stranggießanlage zu schaffen, die eine verbesserte Ausnutzung der eingesetzten Energie, eine Reduktion des Ausstoßes von CO2 und eine hohe Verfügbarkeit der Anlage erreicht. Weiterhin ist es Aufgabe der Erfindung ein Verfahren zum vorteilhaften Steuern einer Brenneranordnung zu schaffen.Presentation of the invention, object, solution, advantages The object of the invention is to provide a burner arrangement for heating or for keeping warm, in particular of Gießstrahlschutz- and / or Tauchausgusseinrichtungen particular a continuous casting, which achieves improved utilization of the energy used, a reduction in the emission of CO 2 and high availability of the system. It is another object of the invention to provide a method for advantageously controlling a burner assembly.
Die Aufgabe bezüglich der Brenneranordnung wird erreicht mit einer Brenner- anordnung insbesondere zur Beheizung oder Warmhaltung insbesondere von Gießstrahlschutz- und/oder Tauchausgusseinrichtungen einer Stranggießanlage mit einem insbesondere ein Schattenrohr oder ein Tauchrohr aufnehmbaren Behältnis, wobei die Wandung des Behältnisses zumindest teilweise durch zumindest einen Porenbrenner gebildet ist.The object with regard to the burner arrangement is achieved with a burner arrangement, in particular for heating or keeping warm, in particular Gießstrahlschutz- and / or Tauchausgusseinrichtungen a continuous casting with a particular shadow tube or a dip tube receptive container, wherein the wall of the container at least partially formed by at least one pore burner is.
Erfindungsgemäß ist es dabei vorteilhaft, wenn der Porenbrenner bevorzugt eine Mehrzahl von Porenbrennersegmenten aufweist. Diese sind dann miteinander zu dem Porenbrenner verbunden oder einteilig oder einstückig ausgebildet.According to the invention, it is advantageous if the pore burner preferably has a plurality of pore burner segments. These are then connected to each other to the pore burner or formed in one piece or in one piece.
Auch ist es besonders vorteilhaft, wenn die Porenbrennersegmente des Porenbrenners in axialer Richtung betrachtet Ringe und/oder Reihen bilden. Weiterhin ist es vorteilhaft, wenn der Porenbrenner aus Porenbrennersegmenten besteht, wobei eine Mehrzahl von Segmenten in Umfangsrichtung betrachtet Rin- ge oder Reihen bilden. Bei einem Ausführungsbeispiel der Erfindung ist es zweckmäßig, wenn die Porenbrennersegmente des Porenbrenners in Umfangsrichtung betrachtet hexagonal oder oktagonal angeordnet sind.It is also particularly advantageous if the pore burner segments of the pore burner form rings and / or rows viewed in the axial direction. Furthermore, it is advantageous if the pore burner consists of pore burner segments, with a plurality of segments forming rings or rows in the circumferential direction. In one embodiment of the invention, it is expedient for the pore burner segments of the pore burner to be arranged hexagonal or octagonal in the circumferential direction.
Darüber hinaus ist es vorteilhaft, wenn das Behältnis einen Boden und/oder einen Deckel aufweist, welche aus einer bodenseitigen und/oder deckelseitigen Platte bestehen. Für die Gestaltung der Brenneranordnung ist es weiterhin vorteilhaft, wenn die Porenbrennersegmente jeweils mittels Zuleitungen, insbesondere von radial außen, mit Brennstoff versorgt werden. Dazu können die Zuleitungen von den Segmenten nach radial außen geführt werden und eventuell in einem weiteren Zuleitungsabschnitt axial verlaufen.Moreover, it is advantageous if the container has a bottom and / or a lid, which consist of a bottom-side and / or lid-side plate. For the design of the burner arrangement, it is furthermore advantageous if the pore burner segments are each supplied with fuel by means of supply lines, in particular from radially outside. For this purpose, the leads from the segments can be guided radially outward and possibly extend axially in a further supply line section.
Für eine Brennstoffversorgung ist es vorteilhaft, wenn zumindest einzelne der Zuleitungen über eine gemeinsame Versorgungsleitung mit Brennstoff versorgt werden. Dabei kann es zweckmäßig sein, wenn die Versorgungsleitung bzw. die Versorgungsleitungen im Wesentlichen ringförmig ausgebildet ist und mit Zuleitungen in Verbindung steht. Dabei muss der Ring nicht ganz geschlossen sein, wobei der Ring auch vorteilhaft geschlossen sein kann.For a fuel supply, it is advantageous if at least some of the supply lines are supplied with fuel via a common supply line. It may be expedient if the supply line or the supply lines is substantially annular and is in communication with supply lines. In this case, the ring must not be completely closed, the ring can also be closed advantageous.
Die Aufgabe hinsichtlich des Verfahrens zum Steuern einer Brenneranordnung wird dadurch gelöst, dass in Abhängigkeit der gewünschten Heizungsintensität bzw. Heizleistung Porenbrennersegmente zugeschaltet oder abgeschaltet werden. Dabei kann es vorteilhaft sein, wenn die Segmente zu- oder abgeschaltet werden, die zumindest abwechselnd am Unfang des Porenbrenners verteilt sind. Dadurch kann vorteilhaft erreicht werden, dass betriebene und abgeschal- tete Segmente gleichmäßig über den Umfang verteilt sind. Auch ist es zweckmäßig, wenn Segmente zu- oder abgeschaltet werden, die in axialer Richtung des Porenbrenners betrachtet in jeweils benachbarten oder weiter entfernten anderen Ringen oder Reihen von Porenbrennersegmenten angeordnet sind. Dadurch kann vorteilhaft erreicht werden, dass betriebene und abgeschalteteThe object with regard to the method for controlling a burner arrangement is achieved in that pore burner segments are switched on or off depending on the desired heating intensity or heating power. It may be advantageous if the segments are switched on or off, which are at least alternately distributed at the beginning of the pore burner. As a result, it can be advantageously achieved that operated and switched-off segments are distributed uniformly over the circumference. It is also expedient if segments are switched on or off, which are viewed in the axial direction of the pore burner in each adjacent or more distant other rings or rows of pore burner segments are arranged. This can advantageously be achieved that powered and disconnected
O Segmente gleichmäßig über die axiale Länge der Brenneranordnung verteilt sind.O segments are evenly distributed over the axial length of the burner assembly.
Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous developments are described in the subclaims.
Kurze Beschreibung der Zeichnungen Nachstehend wird die Erfindung auf der Grundlage eines Ausführungsbeispiels anhand der Zeichnungen näher erläutert.Brief description of the drawings The invention will be explained in more detail on the basis of an embodiment with reference to the drawings.
Es zeigen:Show it:
Fig. 1 eine Schnittdarstellung in vertikaler Richtung einer erfindungsgemäßen Brenneranordnung eines Tauchrohrs,1 is a sectional view in the vertical direction of a burner assembly according to the invention of a dip tube,
Fig. 2 eine Schnittdarstellung in horizontaler Richtung einer erfindungsgemäßen Brenneranordnung eines Tauchrohrs,2 is a sectional view in the horizontal direction of a burner arrangement according to the invention of a dip tube,
Fig. 3 eine Schnittdarstellung in vertikaler Richtung einer erfindungsgemäßen Brenneranordnung eines Tauchrohrs, undFig. 3 is a sectional view in the vertical direction of a burner assembly according to the invention of a dip tube, and
Fig. 4 eine Schnittdarstellung in horizontaler Richtung einer erfindungsgemäßen Brenneranordnung eines Tauchrohrs.Fig. 4 is a sectional view in the horizontal direction of a burner assembly according to the invention a dip tube.
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Die Figur 1 zeigt in einer Schnittdarstellung eine Brenneranordnung 1 insbesondere zur Beheizung oder zur Warmhaltung von Gießstrahlschutz- und/oder Tauchausgusseinrichtungen insbesondere von einer Stranggießanlage. Die Brenneranordnung 1 sieht dabei einen um ein Tauchrohr 2 angeordneten Brenner 3 vor, der erfindungsgemäß als Porenbrenner ausgebildet ist. Der Porenbrenner weist dabei die vorteilhafte Eigenschaft auf, dass er als Gasbrenner eine Verbrennung eines Gas-Luft-Gemischs in einer porösen Struktur oder ZeI- Ie erlaubt, die quasi oder völlig ohne die Ausbildung einer offenen Flamme auskommt. Als Resultat wird eine flammenlose, volumetrische Verbrennung des Gas-Luft-Gemischs erreicht. Dabei wird somit eine Verbrennung in der porösen Struktur erreicht, so dass nach dem Einleiten des Gas-Luft-Gemischs als Reaktionsprodukt ein Abgasstrom ausgangsseitig erzeugt wird.1 shows a sectional view of a burner assembly 1, in particular for heating or for keeping warm Gießstrahlschutz- and / or Tauchausgusseinrichtungen particular from a continuous casting. The burner assembly 1 in this case provides a burner 3 arranged around a dip tube 2 which, according to the invention, is designed as a pore burner. In this case, the pore burner has the advantageous property that it allows combustion of a gas-air mixture in a porous structure or cell as a gas burner, which can be achieved virtually without the formation of an open flame. As a result, a flameless, volumetric combustion of the Gas-air mixture achieved. In this case, a combustion in the porous structure is thus achieved, so that after the introduction of the gas-air mixture as a reaction product, an exhaust gas stream is generated on the output side.
Der in Figur 1 dargestellte Porenbrenner 3 ist aus mehreren Segmenten zu- sammengesetzt. Die einzelnen Segmente 3a, 3b, 3c, 3d sind in axialer Richtung des Tauchrohrs betrachtet angeordnet und weise jeweils eine eigene Zuleitung 4 des Brennstoffs, des Sauerstoffträgers oder des Brennstoff-Luft- Gemischs auf, oder sie weisen jeweils je eine Zuleitung für den Brennstoff und für einen Sauerstoffträger, wie Luft, auf. Auch kann die Luft oder der Sauerstoff über ein Gebläse in die Porenbrenner eingebracht bzw. eingeblasen werden.The pore burner 3 shown in FIG. 1 is composed of several segments. The individual segments 3a, 3b, 3c, 3d are arranged viewed in the axial direction of the dip tube and each have their own supply line 4 of the fuel, the oxygen carrier or the fuel-air mixture, or they each have a supply line for the fuel and for an oxidizer, such as air. The air or oxygen can also be introduced or blown into the pore burners via a blower.
Das Tauchrohr ist weiterhin in einem vorteilhaft thermisch isolierten Behältnis 5 angeordnet, welches vorteilhaft durch die beiden bodenseitigen und deckelsei- tigen Platten 6,7 gebildet wird und an seinem Außenumfang die Wandung 8 durch die Segmente 3a,3b,3c,3d des Porenbrenners 3 gebildet wird. Die Segmente sind dazu mit geringem Fugenabstand nebeneinander angeordnet, so dass eine im Schnitt mehrreihige Anordnung der Porenbrenner gebildet ist.The dip tube is furthermore arranged in an advantageously thermally insulated container 5, which is advantageously formed by the two bottom-side and cover-side plates 6, 7 and on its outer circumference the wall 8 is formed by the segments 3 a, 3 b, 3 c, 3 d of the pore burner 3 becomes. The segments are arranged side by side with a small joint spacing, so that an arrangement of the pore burners which is multi-row in section is formed.
Wie die Figur 2 zeigt, sind die Segmente 3a, 3b, 3c, 3d des Porenbrennens 3 im Wesentlichen ringförmig oder hexagonal oder oktagonal um das Tauchrohr 2 angeordnet. Dadurch entsteht quasi eine röhrenförmige Anordnung der Poren- brennersegmente um das Tauchrohr.As FIG. 2 shows, the segments 3 a, 3 b, 3 c, 3 d of the pore firing 3 are arranged essentially annularly or hexagonally or octagonally around the dip tube 2. This results in a quasi-tubular arrangement of the pore burner segments around the dip tube.
Der Porenbrenner 3 erzeugt einen heißen Abgasstrom 9 und Wärmestrahlung 10, welche auf das Tauchrohr gerichtet werden, um dieses zu heizen, zu erwärmen oder auf der Temperatur zu temperieren. Dabei tritt das heiße Abgas in den Heizraum des inneren des Behältnisses 5 mit relativ geringer Geschwindigkeit ein, was eine homogene Temperaturverteilung im inneren des Behältnisses 5 bewirkt und somit einer Strähnenbildung entgegenwirkt. Dadurch, dass aber auch ein hoher Anteil der Energie in Strahlung umgesetzt wird, kann das Tauchrohr ebenfalls sehr gut beheizt werden. Besonders vorteilhaft ist die Ausbildung des Porenbrenners als im Wesentlichen ring- oder röhrenförmige Anordnung, wobei die Anordnung aus einzelnen Segmenten von Porenbrennern zusammengesetzt ist. Dadurch kann vorteilhaft gesteuert vorgegangen werden, dass einzelne Segmente oder Reihen oder Ringe von Segmenten unabhängig von einander zu- oder abgeschaltet werden oder einzelne Segmente unabhängig voneinander zu- oder abgeschaltet werden.The pore burner 3 generates a hot exhaust stream 9 and heat radiation 10 which are directed to the dip tube to heat it, to heat it or to temper it at the temperature. In this case, the hot exhaust gas enters the heating chamber of the interior of the container 5 at a relatively low speed, which causes a homogeneous temperature distribution in the interior of the container 5 and thus counteracts stratification. The fact that also a high proportion of the energy is converted into radiation, the dip tube can also be heated very well. Particularly advantageous is the formation of the pore burner as a substantially annular or tubular arrangement, wherein the arrangement of individual segments of pore burners is composed. As a result, it can be advantageously controlled that individual segments or rows or rings of segments are switched on or off independently of one another or individual segments are switched on or off independently of one another.
Dabei können je nach vorzunehmender Heizungsintensität bzw. Heizleistung alle Porenbrennersegmente zugeschaltet sein oder einzelne der Segmente abgeschaltet werden. Vorteilhaft kann es sein, wenn Segmente zu- oder abgeschaltet werden, die zumindest abwechselnd am Unfang verteilt sind. Auch kann es vorteilhaft sein, wenn die in axialer Richtung des Tauchrohrs betrachteten ringförmig angeordneten Segmente abwechselnd zu- oder abgeschaltet werden.Depending on the heating intensity or heat output to be performed, all pore burner segments can be switched on or individual segments can be switched off. It can be advantageous if segments are switched on or off, which are distributed at least alternately at the beginning. It can also be advantageous if the annular segments which are viewed in the axial direction of the dip tube are alternately switched on or off.
Die Figuren 3 und 4 zeigen ein Ausführungsbeispiel, in welchem ein Schattenrohr 20 mit einer erfindungsgemäßen Brenneranordnung 21 versehen ist. Figures 3 and 4 show an embodiment in which a shadow tube 20 is provided with a burner assembly 21 according to the invention.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Brenneranordnung1 burner arrangement
2 Tauchrohr 3 Brenner2 dip tube 3 burners
3a Segment3a segment
3b Segment3b segment
3c Segment3c segment
3d Segment 4 Zuleitung3d segment 4 supply line
5 Behältnis5 container
6 Boden, bodenseitige Platte6 bottom, bottom plate
7 Deckel, deckelseitige Platte7 lid, lid-side plate
8 Wandung 9 Abgasstrom8 wall 9 exhaust gas flow
10 Wärmestrahlung10 heat radiation
20 Schattenrohr20 shade tube
21 Brenneranordnung 21 burner arrangement
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08716099A EP2142852A1 (en) | 2007-04-03 | 2008-02-28 | Burner arrangement |
| US12/450,639 US20100035194A1 (en) | 2007-04-03 | 2008-02-28 | Burner arrangement |
| CA002679744A CA2679744A1 (en) | 2007-04-03 | 2008-02-28 | Burner arrangement |
| JP2010501388A JP2010523335A (en) | 2007-04-03 | 2008-02-28 | Burner equipment |
| CN200880011113A CN101688665A (en) | 2007-04-03 | 2008-02-28 | Burner apparatus |
| KR1020097016196A KR101109455B1 (en) | 2007-04-03 | 2008-02-28 | Burner arrangement |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007016018.8 | 2007-04-03 | ||
| DE102007016018A DE102007016018A1 (en) | 2007-04-03 | 2007-04-03 | burner arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008119419A1 true WO2008119419A1 (en) | 2008-10-09 |
Family
ID=39574931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/001570 Ceased WO2008119419A1 (en) | 2007-04-03 | 2008-02-28 | Burner arrangement |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20100035194A1 (en) |
| EP (1) | EP2142852A1 (en) |
| JP (1) | JP2010523335A (en) |
| KR (1) | KR101109455B1 (en) |
| CN (1) | CN101688665A (en) |
| CA (1) | CA2679744A1 (en) |
| DE (1) | DE102007016018A1 (en) |
| WO (1) | WO2008119419A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008032833A1 (en) * | 2008-07-14 | 2010-01-21 | Rational Ag | Food preparation appliance |
| GB2512894A (en) * | 2013-04-10 | 2014-10-15 | David Thomas Bell | Inward firing multiple zoned gas burner |
| US10465905B2 (en) | 2015-03-26 | 2019-11-05 | Korea Institute Of Energy Research | Energy saving combustion device for burning refractory hazardous gas and method for operating the same |
| CN107552772B (en) * | 2016-06-30 | 2019-04-23 | 宝山钢铁股份有限公司 | The device for controlling dynamically and control method of continuous casting immersion outlet preheating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3330324A (en) * | 1965-07-07 | 1967-07-11 | William C Milligan | Gas burner |
| US3833338A (en) * | 1971-06-08 | 1974-09-03 | Cooperheat | Surface combustion burner |
| DE2440712A1 (en) * | 1974-08-24 | 1976-03-04 | Buderus Eisenwerk | Heating of baths of molten materials - using a burner floating on the surface of the material |
| EP0694735A1 (en) * | 1994-07-25 | 1996-01-31 | Alzeta Corporation | Combustive destruction of noxious substances |
| FR2850392A1 (en) * | 2003-01-27 | 2004-07-30 | Inst Francais Du Petrole | PROCESS FOR THE HEAT TREATMENT OF HYDROCARBON CHARGES BY OVEN EQUIPPED WITH RADIANT BURNERS |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151366A (en) * | 1957-12-11 | 1964-10-06 | Howard A Fromson | Method and apparatus for the casting of fusible materials |
| US3337329A (en) * | 1964-01-20 | 1967-08-22 | Finkl & Sons Co | Method of treating molten metal under vacuum |
| US3236636A (en) * | 1962-02-26 | 1966-02-22 | Finkl & Sons Co | Method of treating molten metal |
| CH436362A (en) * | 1965-04-02 | 1967-05-31 | F Erdelyi Frank | Process for cleaning metal, in particular steel melts and for casting such melts and apparatus for carrying out the process |
| JPS5137248B2 (en) * | 1971-08-12 | 1976-10-14 | ||
| US3765571A (en) * | 1971-09-10 | 1973-10-16 | United States Steel Corp | Pressurized tiltable tundish construction |
| US3920447A (en) * | 1972-02-28 | 1975-11-18 | Pennsylvania Engineering Corp | Steel production method |
| JPH068685B2 (en) * | 1984-05-25 | 1994-02-02 | バブコツク日立株式会社 | Control method of catalytic combustion heating furnace |
| JPS6347691Y2 (en) * | 1985-03-07 | 1988-12-08 | ||
| JPS61262455A (en) | 1985-05-11 | 1986-11-20 | Kobe Steel Ltd | Heating method for tundish nozzle |
| US4913647A (en) * | 1986-03-19 | 1990-04-03 | Honeywell Inc. | Air fuel ratio control |
| JPS632546A (en) * | 1986-06-23 | 1988-01-07 | Nippon Steel Corp | High-temperature casting method in continuous casting |
| US6291605B1 (en) * | 1990-06-06 | 2001-09-18 | Clarence S. Freeman | Polymerization process with spraying step |
| BE1004612A6 (en) | 1991-01-16 | 1992-12-22 | Centre Rech Metallurgique | Warming device of a nozzle of a metal fusion casting. |
| JPH05318055A (en) * | 1991-11-29 | 1993-12-03 | Tocera Eng Co Ltd | Device for preheating immersion nozzle |
| JP2682361B2 (en) * | 1992-12-09 | 1997-11-26 | 日本鋼管株式会社 | Exhaust heat recovery type combustion device |
| CA2149422C (en) * | 1993-09-16 | 2000-04-11 | Akihiko Nanba | Method of producing thin cast sheet through continuous casting |
| US5567224A (en) * | 1995-06-06 | 1996-10-22 | Armco Inc. | Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame |
| FR2741555B1 (en) | 1995-11-23 | 1997-12-26 | Usinor Sacilor | NOZZLE FOR THE INTRODUCTION OF A LIQUID METAL INTO A CONTINUOUS CASTING LINGOT OF METAL PRODUCTS, AND CONTINUOUS CASTING INSTALLATION OF METAL PRODUCTS EQUIPPED WITH SUCH A NOZZLE |
| JP3532041B2 (en) | 1996-10-18 | 2004-05-31 | 新日本製鐵株式会社 | Preheating device for immersion nozzle for continuous casting |
| DE10205660B4 (en) * | 2002-02-12 | 2010-11-25 | Sms Siemag Aktiengesellschaft | Process and apparatus for continuous steelmaking using metallic feedstock |
| KR20050114398A (en) | 2004-06-01 | 2005-12-06 | 아이앤아이스틸 주식회사 | Apparatus for preheating of turndish nozzle |
| US7833009B2 (en) * | 2004-09-10 | 2010-11-16 | Air Products And Chemicals, Inc. | Oxidant injection method |
| DE102006015230A1 (en) * | 2006-03-30 | 2007-10-18 | Alstom Technology Ltd. | combustion chamber |
| DE102007016016A1 (en) * | 2007-04-03 | 2008-10-09 | Sms Demag Ag | burner arrangement |
-
2007
- 2007-04-03 DE DE102007016018A patent/DE102007016018A1/en not_active Withdrawn
-
2008
- 2008-02-28 EP EP08716099A patent/EP2142852A1/en not_active Withdrawn
- 2008-02-28 KR KR1020097016196A patent/KR101109455B1/en not_active Expired - Fee Related
- 2008-02-28 CN CN200880011113A patent/CN101688665A/en active Pending
- 2008-02-28 US US12/450,639 patent/US20100035194A1/en not_active Abandoned
- 2008-02-28 JP JP2010501388A patent/JP2010523335A/en not_active Ceased
- 2008-02-28 CA CA002679744A patent/CA2679744A1/en not_active Abandoned
- 2008-02-28 WO PCT/EP2008/001570 patent/WO2008119419A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3330324A (en) * | 1965-07-07 | 1967-07-11 | William C Milligan | Gas burner |
| US3833338A (en) * | 1971-06-08 | 1974-09-03 | Cooperheat | Surface combustion burner |
| DE2440712A1 (en) * | 1974-08-24 | 1976-03-04 | Buderus Eisenwerk | Heating of baths of molten materials - using a burner floating on the surface of the material |
| EP0694735A1 (en) * | 1994-07-25 | 1996-01-31 | Alzeta Corporation | Combustive destruction of noxious substances |
| FR2850392A1 (en) * | 2003-01-27 | 2004-07-30 | Inst Francais Du Petrole | PROCESS FOR THE HEAT TREATMENT OF HYDROCARBON CHARGES BY OVEN EQUIPPED WITH RADIANT BURNERS |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007016018A1 (en) | 2008-10-09 |
| KR20090099080A (en) | 2009-09-21 |
| EP2142852A1 (en) | 2010-01-13 |
| CN101688665A (en) | 2010-03-31 |
| CA2679744A1 (en) | 2008-10-09 |
| KR101109455B1 (en) | 2012-01-31 |
| JP2010523335A (en) | 2010-07-15 |
| US20100035194A1 (en) | 2010-02-11 |
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