EP2134488B1 - Burner arrangement - Google Patents

Burner arrangement Download PDF

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Publication number
EP2134488B1
EP2134488B1 EP08707778A EP08707778A EP2134488B1 EP 2134488 B1 EP2134488 B1 EP 2134488B1 EP 08707778 A EP08707778 A EP 08707778A EP 08707778 A EP08707778 A EP 08707778A EP 2134488 B1 EP2134488 B1 EP 2134488B1
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EP
European Patent Office
Prior art keywords
burner
segments
porous
arrangement
heating
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.)
Not-in-force
Application number
EP08707778A
Other languages
German (de)
French (fr)
Other versions
EP2134488A1 (en
Inventor
Martin Assmann
Udo Falkenreck
Hans-Jürgen HECKEN
Jochen SCHLÜTER
Walter Weischedel
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SMS Siemag AG
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SMS Siemag AG
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Publication date
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Publication of EP2134488A1 publication Critical patent/EP2134488A1/en
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Publication of EP2134488B1 publication Critical patent/EP2134488B1/en
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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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
    • 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
    • B22D11/10—Supplying or treating molten metal
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/02—Linings; Jackets; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/04—Joints; Connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/20—Joints; Connections
    • F23J2213/202—Joints; Connections between duct or stack sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/30—Specific materials
    • F23J2213/303—Specific materials metallic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/30—Specific materials
    • F23J2213/304—Specific materials ceramic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/40—Heat insulation fittings

Definitions

  • the invention relates to a burner arrangement, in particular for heating, drying and / or keeping warm in particular of distributors of a continuous casting plant.
  • the molten liquid metal is usually brought by means of a pan to the casting stand of a continuous casting plant.
  • the hot liquid metal is buffered by means of a distributor, such as a distributor trough, before it flows into the mold of the continuous caster.
  • the distributor also serves to allow a continuous change of the ladles, so that a sequence casting of the metal is feasible.
  • the distributors are cyclically relisted and, if necessary, newly repaired before each sequence and equipped with a dip tube. Thereafter, the manifold is dried and heated.
  • a burner with fossil fuels, such as natural gas, and oxygen carriers, such as air operated.
  • conventionally commercially available burners are used, which are installed in a heated lid.
  • the flames produce selective heat, which can lead to localized overheating, where the flame is directly impinging and other areas, in turn, tend to overheat where the flame is too far away.
  • voltages are caused in the distributor, which can lead to cracking and thus the failure of the entire system.
  • the drying time is extended by the inhomogeneous heating with the flame, the service life of the distributor is reduced and at the same time the energy consumption is very high.
  • the emission of CO 2 is also very high. Also, this increases the consumption of lining material of the distributor because it has to be replaced more often with increased cracking.
  • the cost of energy supply is high, which makes the system less economical and also the output of the combustion gases is very high and overall relatively less environmentally friendly, which is considered particularly disadvantageous in the recent discussion of the greenhouse effect.
  • Such burner arrangements are for example by the KR 102003005373 A , the KR 1020030021728 A , the KR 1020040011716 A , the KR 1020010091068 A and the KR 09122854 A known.
  • the object of the invention is to provide a burner arrangement, in particular for heating, drying and / or keeping warm in particular of distributors of 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, drying and / or keeping warm, in particular from a distributor of a continuous casting plant, with a planar arrangement of at least one burner, wherein the burner or burners is or are formed as a pore burner.
  • the pore burner has pore burner segments.
  • the pore burner may have a segment or a plurality of segments which are connected to one another or which are arranged adjacent to one another at least to a small gap between the segments.
  • the connected segments are connected by means of connecting means and / or held for example by means of a frame in such a way that a uniform burner is achieved by the adjacent arrangement of the segments.
  • the pore burner segments are supplied in each case by means of feed lines with fuel and / or with an oxygen carrier. It is advantageous if at least some of the leads are supplied via a common supply line with fuel and / or with an oxygen carrier. It is also advantageous in a further embodiment, when a blower for supplying the oxygen carrier is provided via the supply lines. As a result, an oxygen carrier, such as air, is conveyed through the supply lines to the segments by means of the blower.
  • the pore burner arrangement are held by a pivotable holder or a pivoting arm, which is designed to be pivotable by means of a joint. It may be useful in another embodiment, when the blower is also held by the bracket or the pivot arm, and thus the fan is pivotally mounted.
  • the object with regard to the method is achieved by a method for controlling a burner arrangement, wherein pore burner segments are switched on independently of one another and / or switched off as a function of the desired heating intensity or heating power. It is expedient if segments are switched on or off, which are arranged at least alternately in rows or, for example, in a checkerboard pattern.
  • the FIG. 1 shows a view of a burner assembly 1 in particular for heating, drying and / or for keeping hot distributors in particular of a continuous casting.
  • the burner assembly 1 in this case has a burner 2, which is accommodated on a holder 3 and which is formed by means of the holder 3 with pivot bearing 4 pivotable.
  • the holder thus forms a pivoting arm.
  • the burner can lie above the distributor 5, as in a heating position 8, and this heating or the burner can be folded upwards, into a parking position 9, so that it is essentially vertical and the distributor is essentially freely accessible for further work is.
  • the pivot arm is actuated, for example, by means of a hydraulic or by means of compressed air.
  • the burner 2 is formed according to the invention as a pore burner 10.
  • the pore burner 10 has the advantageous property that it allows combustion of a gas-air mixture in a porous structure or cell as a gas burner, which manages quasi or completely without the formation of an open flame. As a result, a flameless, volumetric combustion of the gas-air mixture is 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 oxygen carrier such as the air, for example, is blown by means of a blower 6 in the pore burner 10.
  • the oxygen carrier is sucked in by the blower and supplied via supply channels or supply leads 7 to the torch 10 designed as a burner.
  • Pore burner 10 shown is advantageously composed of several segments of the pore burner.
  • the individual segments 11,12,13 are arranged substantially flat and have a connection to at least one feed line 14, 15, by means of which the fuel and / or the oxygen carrier is supplied to the respective segment.
  • the air or the oxygen carrier can be introduced via a blower in the pore burner segments.
  • a supply line for a fuel-air mixture may be provided.
  • the flat arranged segments are advantageously arranged side by side with a small joint spacing, so that a multi-row planar arrangement of the pore burner segments is provided.
  • the pore burner segments can be held by means of holding means, such as in a holding frame, which is connected to the pivot arm, so that the planar arrangement of the pore burner segments can be pivoted together with the pivot arm.
  • the pore burner generates a hot exhaust gas stream and, in addition, heat radiation, which are directed onto the distributor in order to heat it, to dry it, to heat it or to temper it at the temperature.
  • the hot exhaust gas occurs in the interior or the surface of the manifold, which causes a homogeneous temperature distribution and thus counteracts stratification. Due to the fact that even a high proportion of the energy is converted into radiation, the distributor can also be heated very effectively.
  • the formation of the pore burner as a substantially planar arrangement, wherein the arrangement of individual segments of pore burners is composed.
  • it can be advantageously controlled that individual segments or rows 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 be switched off. It can be advantageous if segments are switched on or off, which are at least alternately distributed in rows. It may also be advantageous if segments are alternately switched on or off, which are arranged like a checkerboard, so that only a fraction of the segments are operated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Drying Of Solid Materials (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Gas Burners (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

The invention relates to a burner arrangement (1) in particular for heating, drying or keeping warm, in particular a distributor (5) of a continuous casting unit and consisting of a flat arrangement of at least one burner (2). The burner(s) (2) is/are embodied as a porous burner (10).

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Brenneranordnung insbesondere zur Beheizung, Trocknung und/oder Warmhaltung insbesondere von Verteilern einer Stranggießanlage.The invention relates to a burner arrangement, in particular for heating, drying and / or keeping warm in particular of distributors of a continuous casting plant.

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. Das heiße flüssige Metall wird mittels eines Verteilers, wie beispielsweise einer Verteilerrinne, zwischengepuffert, bevor es in die Kokille der Stranggießanlage einströmt. Der Verteiler dient auch dazu, dass ein laufender Wechsel der Gießpfannen durchgeführt werden kann, somit also ein Sequenzgießen des Metalls durchführbar ist.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. The hot liquid metal is buffered by means of a distributor, such as a distributor trough, before it flows into the mold of the continuous caster. The distributor also serves to allow a continuous change of the ladles, so that a sequence casting of the metal is feasible.

Die Verteiler werden in der Regel zyklisch neu zugestellt und vor jeder Sequenz gegebenenfalls neu zwischenrepariert und mit einem Tauchrohr bestückt. Danach wird der Verteiler getrocknet und aufgeheizt. Zur Beheizung wird dabei ein Brenner mit fossilen Brennstoffen, wie mit Erdgas, und mit Sauerstoffträgem, wie beispielsweise mit Luft, betrieben. Dabei werden üblicher Weise im Handel erhältliche Brenner verwendet, die in einen Heizdeckel eingebaut werden.As a rule, the distributors are cyclically relisted and, if necessary, newly repaired before each sequence and equipped with a dip tube. Thereafter, the manifold is dried and heated. For heating while a burner with fossil fuels, such as natural gas, and oxygen carriers, such as air, operated. In this case, conventionally commercially available burners are used, which are installed in a heated lid.

Durch die Verwendung von handelsüblichen Brennern mit Flammenerzeugung wird ein sich schnell bewegendes Abgas erzeugt, das zur Strähnenbildung neigt und insgesamt einen geringen Anteil an Strahlungsenergie aufweist.By using commercially available burners with flame generation, a fast-moving exhaust gas is generated which tends to streak and has a low proportion of radiant energy.

Durch die Flammen werden punktuelle Aufheizungen erzeugt, was zu einer lokalen Überhitzung führen kann, wo die jeweilige Flamme direkt auftrifft und wobei andere Bereiche wiederum eher zu schwach erhitzt werden, wo die Flamme zu weit entfernt ist. Dadurch werden Spannungen im Verteiler verursacht, was zu Rissbildung und somit zum Ausfall der gesamten Anlage führen kann. Weiterhin ist durch die inhomogene Erwärmung mit der Flamme die Trocknungszeit verlängert, die Standzeit des Verteilers reduziert und gleichzeitig der Energieverbrauch sehr hoch. Auch der Ausstoß an CO2 ist ebenfalls sehr hoch. Auch ist dadurch der Verbrauch an Ausmauerungsmaterial des Verteilers erhöht, weil es bei erhöhter Rissbildung häufiger ersetzt werden muss. Dadurch sind die Kosten für die Energiebereitstellung hoch, was die Anlage weniger wirtschaftlich macht und darüber hinaus ist der Ausstoß des 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 flames produce selective heat, which can lead to localized overheating, where the flame is directly impinging and other areas, in turn, tend to overheat where the flame is too far away. As a result, voltages are caused in the distributor, which can lead to cracking and thus the failure of the entire system. Furthermore, the drying time is extended by the inhomogeneous heating with the flame, the service life of the distributor is reduced and at the same time the energy consumption is very high. The emission of CO 2 is also very high. Also, this increases the consumption of lining material of the distributor because it has to be replaced more often with increased cracking. As a result, the cost of energy supply is high, which makes the system less economical and also the output of the combustion gases is very high and overall relatively less environmentally friendly, which is considered particularly disadvantageous in the recent discussion of the greenhouse effect.

Solche Brenneranordnungen sind beispielsweise durch die KR 102003005373 A , die KR 1020030021728 A , die KR 1020040011716 A , die KR 1020010091068 A und die KR 09122854 A bekannt geworden.Such burner arrangements are for example by the KR 102003005373 A , the KR 1020030021728 A , the KR 1020040011716 A , the KR 1020010091068 A and the KR 09122854 A known.

Die Druckschrift KELLNER C et al: "Markteinführung des Porenbrenners - Prozesswärme in neuer Dimension" offenbart Porenbrenner unter anderem für die Anwendung in der Stahlindustrie, wobei Porenbrenner zu einem Cluster zusammengeführt sind. Die räumliche Ausdehnung des Gesamtbrenners erfolgt durch die Segmentierung über Einzelbrenner. In einer Ausgestaltung sind Einzelbrenner beschreiben, die über ein Gebläse verfügen.The document KELLNER C et al: "Market introduction of the pore burner - process heat in a new dimension" reveals pore burners for use in the steel industry, among other things, where pore burners are combined into a cluster. The spatial extent of the entire burner is achieved by the segmentation of individual burners. In one embodiment, individual burners are described which have a fan.

Die Druckschrift " Gas-Porenbrenner in der Aluminiumindustrie - Energieeinsparung und Prozessverbesserung" von VOLKERT JOCHEN et al, XP009085762 ISSN: 0020-9384 beschreibt den Einsatz der Porenbrennertechnologie in der Aluminiumindustrie. Durch eine selektivere und homogenere Wärmeeinbringung in die Thermoprozesse reduziert sich die Ausschussrate sowie der Energieverbrauch. Vorteile ergeben sich für verschiedene Anwendungen entlang der Wertschöpfungskette des Aluminiums durch den Einsatz flammenloser Gas-Porenbrenner.The publication " Gas Pore Burner in the Aluminum Industry - Energy Saving and Process Improvement "by VOLKERT JOCHEN et al, XP009085762 ISSN: 0020-9384 describes the use of pore burner technology in the aluminum industry. More selective and homogeneous heat input into the thermal process reduces the reject rate and energy consumption. Advantages arise for various applications along the value chain of aluminum through the use of flameless gas pore burners.

Darstellung der Erfindung, Aufgabe, Lösung, VorteilePresentation of the invention, object, solution, advantages

Aufgabe der Erfindung ist es, eine Brenneranordnung insbesondere zur Beheizung, Trocknung und/oder Warmhaltung insbesondere von Verteilern 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.The object of the invention is to provide a burner arrangement, in particular for heating, drying and / or keeping warm in particular of distributors of 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 gelöst mit einer Brenneranordnung insbesondere zur Beheizung, Trocknung und/oder Warmhaltung insbesondere von einem Verteiler einer Stranggießanlage, mit einer flächigen Anordnung von zumindest einem Brenner, wobei der oder die Brenner als Porenbrenner ausgebildet ist oder sind.The object with regard to the burner arrangement is achieved with a burner arrangement, in particular for heating, drying and / or keeping warm, in particular from a distributor of a continuous casting plant, with a planar arrangement of at least one burner, wherein the burner or burners is or are formed as a pore burner.

Dabei ist es besonders vorteilhaft, wenn der Porenbrenner Porenbrennersegmente aufweist. Dabei kann der Porenbrenner ein Segment aufweisen oder eine Mehrzahl von Segmenten, die miteinander verbunden sind oder die zumindest bis auf eine geringe Fuge zwischen den Segmenten benachbart angeordnet sind. Die verbundenen Segmente sind erfindungsgemäß mittels Verbindungsmitteln verbunden und/oder derart beispielsweise mittels eines Rahmens gehalten, dass ein einheitlicher Brenner durch die benachbarte Anordnung der Segmente erreicht ist. Bei einem vorteilhaften Ausführungsbeispiel ist es zweckmäßig, wenn die Porenbrennersegmente des Porenbrenners flächig in benachbarten Reihen angeordnet, und unabhängig voneinander über eine Steuereinrichtung zu- und/oder abschaltbar sind.It is particularly advantageous if the pore burner has pore burner segments. In this case, the pore burner may have a segment or a plurality of segments which are connected to one another or which are arranged adjacent to one another at least to a small gap between the segments. According to the invention, the connected segments are connected by means of connecting means and / or held for example by means of a frame in such a way that a uniform burner is achieved by the adjacent arrangement of the segments. At a advantageous embodiment, it is expedient if the pore burner segments of the pore burner surface arranged in adjacent rows, and independently via a control device and / or can be switched off.

Zur Versorgung mit Brennstoff und mit einem Sauerstoffträger ist es zweckmäßig, wenn die Porenbrennersegmente jeweils mittels Zuleitungen mit Brennstoff und/oder mit einem Sauerstoffträger versorgt werden. Dabei ist es vorteilhaft, wenn zumindest einzelne der Zuleitungen über eine gemeinsame Versorgungsleitung mit Brennstoff und/oder mit einem Sauerstoffträger versorgt werden. Auch ist es bei einem weiteren Ausführungsbeispiel vorteilhaft, wenn ein Gebläse zur Versorgung des Sauerstoffträgers über die Zuleitungen vorgesehen ist. Dadurch wird mittels des Gebläses ein Sauerstoffträger, wie beispielsweise Luft, durch die Zuleitungen zu den Segmenten gefördert.For supplying fuel and with an oxygen carrier, it is expedient if the pore burner segments are supplied in each case by means of feed lines with fuel and / or with an oxygen carrier. It is advantageous if at least some of the leads are supplied via a common supply line with fuel and / or with an oxygen carrier. It is also advantageous in a further embodiment, when a blower for supplying the oxygen carrier is provided via the supply lines. As a result, an oxygen carrier, such as air, is conveyed through the supply lines to the segments by means of the blower.

Zur Handhabung der Brenneranordnung ist es vorteilhaft, wenn die Porenbrenneranordnung von einer verschwenkbaren Halterung oder einem Schwenkarm gehalten sind, der mittels eines Gelenks verschwenkbar ausgebildet ist. Dabei kann es bei einem weiteren Ausführungsbeispiel zweckmäßig sein, wenn das Gebläse ebenfalls von der Halterung oder dem Schwenkarm gehalten ist, und somit auch das Gebläse verschwenkbar angeordnet ist.For handling the burner arrangement, it is advantageous if the pore burner arrangement are held by a pivotable holder or a pivoting arm, which is designed to be pivotable by means of a joint. It may be useful in another embodiment, when the blower is also held by the bracket or the pivot arm, and thus the fan is pivotally mounted.

Die Aufgabe hinsichtlich des Verfahrens wird gelöst durch ein Verfahren zum Steuern einer Brenneranordnung, wobei in Abhängigkeit der gewünschten Heizungsintensität bzw. Heizleistung Porenbrennersegmente unabhängig voneinander zugeschaltet und/oder abgeschaltet werden. Dabei ist es zweckmäßig, wenn Segmente zu- oder abgeschaltet werden, die zumindest abwechselnd in Reihen oder die beispielsweise in einem Schachbrettmuster angeordnet sind.The object with regard to the method is achieved by a method for controlling a burner arrangement, wherein pore burner segments are switched on independently of one another and / or switched off as a function of the desired heating intensity or heating power. It is expedient if segments are switched on or off, which are arranged at least alternately in rows or, for example, in a checkerboard pattern.

Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous developments are described in the subclaims.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Nachstehend wird die Erfindung auf der Grundlage eines Ausführungsbeispiels anhand der Zeichnungen näher erläutert.The invention will be explained in more detail on the basis of an embodiment with reference to the drawings.

Es zeigen:

Fig. 1
eine Ansicht einer erfindungsgemäßen Brenneranordnung zur Beheizung, Trocknung und/oder Warmhaltung eines Verteilers, und
Fig. 2
eine Aufsicht einer Brenneranordnung nach Figur 1.
Show it:
Fig. 1
a view of a burner assembly according to the invention for heating, drying and / or keeping warm a distributor, and
Fig. 2
a top view of a burner assembly according to FIG. 1 ,

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Die Figur 1 zeigt eine Ansicht einer Brenneranordnung 1 insbesondere zur Beheizung, Trocknung und/oder zur Warmhaltung von Verteilern insbesondere von einer Stranggießanlage. Die Brenneranordnung 1 weist dabei einen Brenner 2 auf, der an einer Halterung 3 aufgenommen ist und der mittels der Halterung 3 mit Schwenklager 4 verschwenkbar ausgebildet ist. Die Halterung bildet also einen Schwenkarm. Dabei kann der Brenner über dem Verteiler 5 liegen, wie in einer Heizposition 8, und diesen Beheizen oder der Brenner kann nach oben geklappt werden, in eine Parkposition 9, so dass er im Wesentlichen senkrecht steht und der Verteiler für weitere Arbeiten im Wesentlichen frei zugänglich ist. Zwischen diesen Positionen ist der Schwenkarm beispielsweise mittels einer Hydraulik oder mittels Druckluft betätig verschwenkbar.The FIG. 1 shows a view of a burner assembly 1 in particular for heating, drying and / or for keeping hot distributors in particular of a continuous casting. The burner assembly 1 in this case has a burner 2, which is accommodated on a holder 3 and which is formed by means of the holder 3 with pivot bearing 4 pivotable. The holder thus forms a pivoting arm. In this case, the burner can lie above the distributor 5, as in a heating position 8, and this heating or the burner can be folded upwards, into a parking position 9, so that it is essentially vertical and the distributor is essentially freely accessible for further work is. Between these positions, the pivot arm is actuated, for example, by means of a hydraulic or by means of compressed air.

Der Brenner 2 ist dabei erfindungsgemäß als Porenbrenner 10 ausgebildet. Der Porenbrenner 10 weist dabei die vorteilhafte Eigenschaft auf, dass er als Gasbrenner eine Verbrennung eines Gas-Luft-Gemischs in einer porösen Struktur oder Zelle 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.The burner 2 is formed according to the invention as a pore burner 10. The pore burner 10 has the advantageous property that it allows combustion of a gas-air mixture in a porous structure or cell as a gas burner, which manages quasi or completely without the formation of an open flame. As a result, a flameless, volumetric combustion of the gas-air mixture is 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 Sauerstoffträger, wie beispielsweise die Luft, wird beispielsweise mittels eines Gebläses 6 in den Porenbrenner 10 eingeblasen. Dabei wird der Sauerstoffträger durch das Gebläse angesaugt und über Versorgungskanäle oder Versorgungszuleitungen 7 dem als Porenbrenner 10 ausgebildeten Brenner zugeführt.The oxygen carrier, such as the air, for example, is blown by means of a blower 6 in the pore burner 10. In this case, the oxygen carrier is sucked in by the blower and supplied via supply channels or supply leads 7 to the torch 10 designed as a burner.

Der in Figur 2 dargestellte Porenbrenner 10 ist vorteilhaft aus mehreren Segmenten des Porenbrenners zusammengesetzt. Die einzelnen Segmente 11,12,13 sind dazu im Wesentlichen flächig angeordnet und weisen eine Verbindung zu zumindest einer Zuleitung 14,15 auf, mittels welcher der Brennstoff und/oder der Sauerstoffträger dem jeweiligen Segment zugeführt wird. Dabei kann, wie oben dargestellt, die Luft oder der Sauerstoffträger über ein Gebläse in die Porenbrennersegmente eingebracht werden. Auch kann bei einem anderen Ausführungsbeispiel eine Zuleitung für ein Brennstoff-Luft-Gemisch vorgesehen sein.The in FIG. 2 Pore burner 10 shown is advantageously composed of several segments of the pore burner. The individual segments 11,12,13 are arranged substantially flat and have a connection to at least one feed line 14, 15, by means of which the fuel and / or the oxygen carrier is supplied to the respective segment. In this case, as shown above, the air or the oxygen carrier can be introduced via a blower in the pore burner segments. Also, in another embodiment, a supply line for a fuel-air mixture may be provided.

Die flächig angeordneten Segmente sind dazu vorteilhaft mit geringem Fugenabstand nebeneinander angeordnet, so dass eine mehrreihige flächige Anordnung der Porenbrennersegmente vorgesehen ist. Dazu können die Porenbrennersegmente mittels Haltemitteln, wie beispielsweise in einem Halterahmen, gehalten sein, welcher mit dem Schwenkarm verbunden ist, so dass die flächige Anordnung der Porenbrennersegmente mit dem Schwenkarm gemeinsam verschwenkt werden kann.The flat arranged segments are advantageously arranged side by side with a small joint spacing, so that a multi-row planar arrangement of the pore burner segments is provided. For this purpose, the pore burner segments can be held by means of holding means, such as in a holding frame, which is connected to the pivot arm, so that the planar arrangement of the pore burner segments can be pivoted together with the pivot arm.

Der Porenbrenner erzeugt einen heißen Abgasstrom und dazu auch Wärmestrahlung, welche auf den Verteiler gerichtet werden, um diesen zu heizen, zu trocknen, zu erwärmen oder auf der Temperatur zu temperieren. Dabei tritt das heiße Abgas in den Innenraum oder die Oberfläche des Verteilers auf, was eine homogene Temperaturverteilung bewirkt und somit einer Strähnenbildung entgegenwirkt. Dadurch, dass aber auch ein hoher Anteil der Energie in Strahlung umgesetzt wird, kann der Verteiler ebenfalls sehr effektiv beheizt werden.The pore burner generates a hot exhaust gas stream and, in addition, heat radiation, which are directed onto the distributor in order to heat it, to dry it, to heat it or to temper it at the temperature. In this case, the hot exhaust gas occurs in the interior or the surface of the manifold, which causes a homogeneous temperature distribution and thus counteracts stratification. Due to the fact that even a high proportion of the energy is converted into radiation, the distributor can also be heated very effectively.

Besonders vorteilhaft ist die Ausbildung des Porenbrenners als im Wesentlichen flächige Anordnung, wobei die Anordnung aus einzelnen Segmenten von Porenbrennem zusammengesetzt ist. Dadurch kann vorteilhaft gesteuert vorgegangen werden, dass einzelne Segmente oder Reihen von Segmenten unabhängig von einander zu- oder abgeschaltet werden oder einzelne Segmente unabhängig voneinander zu- oder abgeschaltet werden.Particularly advantageous is the formation of the pore burner as a substantially planar 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 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 werden oder einzelne der Segmente abgeschaltet werden. Vorteilhaft kann es sein, wenn Segmente zu- oder abgeschaltet werden, die zumindest abwechselnd in Zeilen verteilt sind. Auch kann es vorteilhaft sein, wenn Segmente abwechselnd zu- oder abgeschaltet werden, die schachbrettartig angeordnet sind, so dass nur ein Bruchteil der Segmente betrieben werden.Depending on the heating intensity or heat output to be carried out, all pore burner segments can be switched on or individual segments be switched off. It can be advantageous if segments are switched on or off, which are at least alternately distributed in rows. It may also be advantageous if segments are alternately switched on or off, which are arranged like a checkerboard, so that only a fraction of the segments are operated.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Brenneranordnungburner arrangement
22
Brennerburner
33
Halterung, SchwenkarmBracket, swivel arm
44
Schwenklagerpivot bearing
55
Verteilerdistributor
66
Gebläsefan
77
Versorgungskanäle oder VersorgungsleitungSupply channels or supply line
88th
Heizpositionheating position
99
Parkpositionparking position
1010
Porenbrennerporous burner
1111
Segmentsegment
1212
Segmentsegment
1313
Segmentsegment
1414
Zuleitungsupply
1515
Zuleitungsupply

Claims (4)

  1. Burner arrangement (1), particularly for heating, drying or keeping hot a tundish (5) of a continuous casting installation, with a flat arrangement of at least one burner (2), wherein the burner or burners (2) is or are constructed as porous burners (10), wherein the porous burner (10) has porous burner segments (11, 12, 13) and the porous burner segments (11, 12, 13) are respectively supplied with fuel and/or an oxygen carrier by means of supply lines (4), and at least some individual supply lines (4, 14, 15) are supplied with fuel and/or an oxygen carrier by way of a common supply line, and in addition a blower (6) is provided for supplying the oxygen carrier through the supply lines, and the porous burner segments can be turned on and/or off independently of one another by way of a control device, wherein the porous burner arrangement (10) is held by a swivel arm (3), which is swivellable by way of a joint, and the blower (6) is similarly held by the swivel arm (3) and thus the blower (6) can also be swivelled.
  2. Burner arrangement according to claim 1, characterised in that the porous burner segments (11, 12, 13) of the porous burner (10) are arranged flatly in a row or rows.
  3. Method of controlling a burner arrangement according to any one of the preceding claims, wherein porous burner segments (11, 12, 13) are turned on and/or off independently of one another as a function of the desired heating intensity or heating power.
  4. Method of controlling a burner arrangement according to any one of the preceding claims, wherein segments (11, 12, 13) are turned on or off at least alternately in rows or in a checkerboard pattern.
EP08707778A 2007-04-03 2008-02-20 Burner arrangement Not-in-force EP2134488B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007016016A DE102007016016A1 (en) 2007-04-03 2007-04-03 burner arrangement
PCT/EP2008/001296 WO2008119415A1 (en) 2007-04-03 2008-02-20 Burner arrangement

Publications (2)

Publication Number Publication Date
EP2134488A1 EP2134488A1 (en) 2009-12-23
EP2134488B1 true EP2134488B1 (en) 2011-11-09

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ID=39387277

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EP08707778A Not-in-force EP2134488B1 (en) 2007-04-03 2008-02-20 Burner arrangement

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US (1) US20100104989A1 (en)
EP (1) EP2134488B1 (en)
JP (1) JP5094958B2 (en)
KR (1) KR20090089345A (en)
CN (1) CN101668600B (en)
AT (1) ATE532591T1 (en)
CA (1) CA2677975C (en)
DE (1) DE102007016016A1 (en)
ES (1) ES2374757T3 (en)
WO (1) WO2008119415A1 (en)

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KR101413182B1 (en) * 2012-08-09 2014-07-01 한국에너지기술연구원 Regenerative oxy­fuel combustion system and method
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KR102357550B1 (en) 2016-04-19 2022-01-28 윤지원 Manufactoring method of pair glass and pair glass
KR20170013806A (en) 2016-06-01 2017-02-07 윤지원 Pair Glass having Decoration Later
CN110052597B (en) * 2019-05-13 2024-01-19 濮阳市濮耐炉窑工程有限公司 Tundish dry material mould and explosion-proof ignition device thereof

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CA2677975A1 (en) 2008-10-09
WO2008119415A1 (en) 2008-10-09
CA2677975C (en) 2012-07-10
CN101668600A (en) 2010-03-10
JP5094958B2 (en) 2012-12-12
JP2010523926A (en) 2010-07-15
KR20090089345A (en) 2009-08-21
ES2374757T3 (en) 2012-02-21
EP2134488A1 (en) 2009-12-23
US20100104989A1 (en) 2010-04-29
CN101668600B (en) 2012-11-07
ATE532591T1 (en) 2011-11-15
DE102007016016A1 (en) 2008-10-09

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