EP1218549A1 - Copper cooling plate for metallurgical furnaces - Google Patents

Copper cooling plate for metallurgical furnaces

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Publication number
EP1218549A1
EP1218549A1 EP00965931A EP00965931A EP1218549A1 EP 1218549 A1 EP1218549 A1 EP 1218549A1 EP 00965931 A EP00965931 A EP 00965931A EP 00965931 A EP00965931 A EP 00965931A EP 1218549 A1 EP1218549 A1 EP 1218549A1
Authority
EP
European Patent Office
Prior art keywords
copper cooling
cooling plate
furnace
coolant
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00965931A
Other languages
German (de)
French (fr)
Other versions
EP1218549B1 (en
Inventor
Elmar Korbik
Axel Kubbutat
Franz Reufer
Mary Brandt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP1218549A1 publication Critical patent/EP1218549A1/en
Application granted granted Critical
Publication of EP1218549B1 publication Critical patent/EP1218549B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/10—Cooling; Devices therefor

Definitions

  • the invention relates to a copper cooling plate for metallurgical furnaces, such as blast furnaces, smelting or smelting reduction furnaces provided with a refractory lining and an outer furnace armor plate, through which a coolant flows between the furnace armor plate and the refractory lining, the coolant tubes of the copper cooling plate being supplied and discharged of the coolant are passed through the furnace armor plate to the outside and welded to the furnace armor plate in a gas-tight manner.
  • metallurgical furnaces such as blast furnaces, smelting or smelting reduction furnaces provided with a refractory lining and an outer furnace armor plate, through which a coolant flows between the furnace armor plate and the refractory lining, the coolant tubes of the copper cooling plate being supplied and discharged of the coolant are passed through the furnace armor plate to the outside and welded to the furnace armor plate in a gas-tight manner.
  • Copper cooling plates made of copper or a low-alloy copper alloy with coolant channels arranged inside, manufactured by rolling, forging or casting, normally have four coolant tubes on the upper side and four coolant tubes on the lower side, but there are also fewer or more coolant tubes, depending on the number of coolant channels available.
  • DE 31 00 321 C1 therefore proposes pouring protective tubes into the cooling plates, which surround the coolant tubes in the area of the furnace armor bushings at a distance, the openings in the furnace shell being sealed against escape of the furnace gases and at least one of these protective tubes being welded to the furnace shell serves as a fixed bearing and further protective tubes lying in the same plane are designed as horizontally displaceable bearings. Furthermore, at least one protective tube opposite this, which serves as a fixed bearing, is designed as a vertically displaceable mounting and the further protective tubes lying in this plane are designed as floating bearings.
  • Each coolant tube is connected via a disk to a metal compensator, which is surrounded by a protective housing and is welded gas-tight directly or via a pipe socket to the furnace shell in order to seal the fastening point of the cooling plate by means of protective tubes against undesired furnace gas leakage.
  • the object is achieved in the case of a copper cooling plate of the type mentioned at the outset with the characterizing features of claim 1 in that the copper cooling plates are additionally fastened by at least one coolant tube which is welded to the Armor plate welded fixed point fastening element, for example a fastening bolt, is connected to the furnace armor plate.
  • the copper cooling plates are additionally fastened by at least one coolant tube which is welded to the Armor plate welded fixed point fastening element, for example a fastening bolt, is connected to the furnace armor plate.
  • two basic fastening variants are conceivable, which can be used depending on the size of the copper cooling plate and the number of coolant channels or coolant pipes.
  • the copper cooling plate on a fastening bolt or on another fastening element, which is located in the immediate vicinity of the upper and / or lower coolant pipes which lead through the furnace armor.
  • the fastening element is connected to the furnace armor and the copper cooling plate in such a way that the fastening element acts as a fixed point in all spatial directions.
  • the immediate proximity of the fastening element to the coolant tubes on the one hand and the very low thermal expansion of the copper on the other hand mean that the thermal expansions to be expected due to temperature fluctuations between the fastening element and the adjacent coolant tubes are so small that the compensators on these coolant tubes are dispensed with can be.
  • the coolant pipes can therefore directly, i. H.
  • the other coolant pipes are, as usual, fastened to the furnace armor plate with compensators and thus represent looseness points in all spatial directions.
  • the copper cooling plate is also at other looseness points by means of appropriate fastening elements, for example screws , connected to the furnace armor plate, through which movements due to thermal expansion in the vertical / horizontal direction are possible.
  • Another variant for fastening a copper cooling plate is to provide the copper cooling plate with at least one fixed point fastening element, for example in the middle of the copper cooling plate.
  • the copper cooling plate provided with additional loose-point fastening elements, can then be welded to the furnace armor plate entirely without compensators, all of which Coolant pipes then act as additional fixed points.
  • the expected thermal expansions between the fixed points available in this way are so small that they can be neglected and therefore no compensators are required.
  • the elimination of the compensators represents a considerable advantage due to the reduced assembly and welding effort, since a compensator would have to be welded gas-tight on the one hand on the furnace armor plate and on the other hand on the pipe socket of the copper cooling plate.
  • Those coolant pipes that do not require compensators according to the invention are welded gas-tight from the outside directly to the furnace armor plate and either arranged with the aid of a perforated template or attached with a simple cylindrical pot, which increases the distance between the fixed point of the welded coolant pipe and the body of the copper cooling plate.
  • copper cooling plates can therefore be installed in metallurgical furnaces, in particular blast furnaces or other smelting and smelting reduction furnaces more easily, more quickly and more cost-effectively.
  • 1 is a connection-side plan view of a copper cooling plate with a fixed-point fastening element arranged at the top,
  • FIG. 2 shows a side view of the copper cooling plate with a furnace armor plate according to FIG. 1, 3 is a connection-side plan view of a copper cooling plate with two fixed point fastening elements arranged in the middle of the copper cooling plate,
  • FIG. 4 shows a side view of the copper cooling plate with a furnace armor plate according to FIG. 3.
  • a copper cooling plate 10 is shown in a plan view (Fig. 1) and in a side view (Fig. 2) with four coolant channels (not visible), the coolant tubes 13, 14 for supplying and removing the coolant at the top and are arranged on the lower part of the copper cooling plate 10.
  • a fastening bolt is arranged as a fixed point fastening element 11, which is welded to the furnace armor plate 15 with a disk 17.
  • these coolant tubes 13 can be welded directly to the furnace armor plate 15 with a disk 17 without the otherwise usual compensators.
  • the lower coolant pipes 14, which are too far away from the fixed point fastening element 11, are unchanged connected to the furnace armor plate 15 with compensators 16.
  • a plurality of starting point fastening elements 12, in this exemplary embodiment fastening screws, are arranged symmetrically distributed over the surface of the copper cooling plate 10 for further fastening of the copper cooling plate 10 to the furnace armor plate 15.
  • FIGS. 3 and 4 show a top view (FIG. 3) and a side view (FIG. 4) of a further type of fastening or embodiment of a copper cooling plate 10 'in connection with the furnace shell plate 15 according to the invention.
  • two fixed point fastening elements 11 fastening bolts
  • further starting point fastening elements 12 fastening screws
  • the copper cooling plate 10 ′ is therefore fastened from the fixed points of the fastening bolts 11 and the welded-on coolant tubes 13, 14 and the loose points (in the vertical / horizontal direction) of the fastening screws 12.
  • the invention is not limited to the exemplary embodiments shown, but in particular with regard to the number and arrangement of the fixed point and loose point fastening elements and their design as bolts or screws, depending on the size of the copper cooling plates, corresponding variations are possible if this eliminates Compensators in the sense of the invention is made possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Blast Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

According to the prior art, copper cooling plates (10) are fixed to the furnace armour plate (15) of metallurgical furnaces by elastically, gas tightly connecting the coolant pipes (13, 14) to said furnace armour plate (15) using compensators (16) and by welding. This prevents the fixture from being destroyed by heat-related alternating bending stresses. According to the invention, at least one fixed-point fixing element (11) is located near the coolant tubes (13, 14). As a result, at least some of the compensators (16) that are usually provided are no longer required and the costs are reduced.

Description

Kupferkühlplatte für metallurgische ÖfenCopper cooling plate for metallurgical furnaces
Die Erfindung betrifft eine Kupferkühlplatte für mit einer feuerfesten Auskleidung und einem äußeren Ofenpanzerblech versehene metallurgische Öfen, wie Hochöfen, Schmelz- oder Schmelzreduktionsöfen, die von einem Kühlmittel durchströmt zwischen dem Ofenpanzerblech und der feuerfesten Ausmauerung angeordnet ist, wobei die Kühlmittelrohre der Kupferkühlplatte zum Zuführen und Abführen des Kühlmittels durch das Ofenpanzerblech nach außen geführt und mit dem Ofenpanzerblech gasdicht verschweißt sind.The invention relates to a copper cooling plate for metallurgical furnaces, such as blast furnaces, smelting or smelting reduction furnaces provided with a refractory lining and an outer furnace armor plate, through which a coolant flows between the furnace armor plate and the refractory lining, the coolant tubes of the copper cooling plate being supplied and discharged of the coolant are passed through the furnace armor plate to the outside and welded to the furnace armor plate in a gas-tight manner.
Kupferkühlplatten (sogenannte Cu-Staves) aus Kupfer oder einer niedrig legierten Kupferlegierung mit in ihrem Inneren angeordneten Kühlmittelkanälen, gefertigt durch Walzen, Schmieden oder Gießen, haben im Normalfall vier Kühlmittelrohre an der oberen und vier Kühlmittelrohre an der unteren Seite, wobei es jedoch auch weniger oder mehr Kühlmittelrohre sein können, entsprechend der Anzahl der vorhandenen Kühlmittelkanäle.Copper cooling plates (so-called Cu staves) made of copper or a low-alloy copper alloy with coolant channels arranged inside, manufactured by rolling, forging or casting, normally have four coolant tubes on the upper side and four coolant tubes on the lower side, but there are also fewer or more coolant tubes, depending on the number of coolant channels available.
Es ist bekannt, Kühlplatten eines Ofenkühlsystems auf unterschiedliche Arten an der Innenoberfläche des Ofenpanzerblechs zu befestigen. Infolge der wechselnden thermischen Ausdehnung der Kühlplatten bei unterschiedlichen Wärmebelastungen, bedingt durch den Betrieb des Ofens, ist die Art der Befestigung der Kühlplatten von großer Bedeutung.It is known to attach cooling plates of a furnace cooling system to the inner surface of the furnace shell in different ways. As a result of the changing thermal expansion of the cooling plates with different thermal loads, due to the operation of the furnace, the type of fastening of the cooling plates is of great importance.
So ist es aus der DE 27 43 380 A1 bekannt, aus Gusseisen gefertigte Kühlplatten am Ofenpanzer eines Hochofens mit Schrauben zu befestigen, die nach außen mit einer Dichthaube versehen sind. Nachteil bei dieser Befestigungsart ist, dass sich bei hohen Wärmeblastungen der Kühlplatten diese Befestigungsschrauben ausdehnen und sich die Kühlplatten in Richtung Ofenmitte bewegen können, wodurch heißes Ofengas durch den Spalt zwischen den Kühlplatten und dem Ofenpanzer strömt und die Ofenpanzerung unkontrolliert erwärmt. In der DE 31 00 321 C1 wird deshalb vorgeschlagen, in die Kühlplatten Schutzrohre einzugießen, die die Kühlmittelrohre im Bereich der Ofenpanzerungsdurchführungen mit Abstand umgeben, wobei die Öffnungen im Ofenpanzer gegen Austreten der Ofengase abgedichtet sind und wobei mindestens eines dieser Schutzrohre durch Festschweißen an den Ofenpanzer als Festlager dient und in gleicher Ebene liegende weitere Schutzrohre als horizontal verschiebbare Lagerungen ausgebildet sind. Weiterhin ist mindestens ein - dieser als Festlager dienenden Schutzrohre - gegenüberliegendes Schutzrohr als vertikal verschiebbare Lagerung und die in dieser Ebene liegenden weiteren Schutzrohre als Loslager ausgebildet. Jedes Kühlmittelrohr ist über eine Scheibe mit einem Metallkompensator verbunden, der von einem Schutzgehäuse umgeben ist und gasdicht direkt oder über einen Rohrstutzen am Ofenpanzer angeschweißt ist, um die Befestigungsstelle der Kühlplatte mittels Schutzrohren gegenüber einem unerwünschten Ofengasaustritt abzudichten.It is known from DE 27 43 380 A1 to fasten cooling plates made of cast iron to the furnace shell of a blast furnace with screws which are provided with a sealing hood on the outside. The disadvantage of this type of fastening is that when the cooling plates are subjected to high thermal loads, these fastening screws expand and the cooling plates can move towards the center of the furnace, as a result of which hot furnace gas flows through the gap between the cooling plates and the furnace shell and heats the furnace shell in an uncontrolled manner. DE 31 00 321 C1 therefore proposes pouring protective tubes into the cooling plates, which surround the coolant tubes in the area of the furnace armor bushings at a distance, the openings in the furnace shell being sealed against escape of the furnace gases and at least one of these protective tubes being welded to the furnace shell serves as a fixed bearing and further protective tubes lying in the same plane are designed as horizontally displaceable bearings. Furthermore, at least one protective tube opposite this, which serves as a fixed bearing, is designed as a vertically displaceable mounting and the further protective tubes lying in this plane are designed as floating bearings. Each coolant tube is connected via a disk to a metal compensator, which is surrounded by a protective housing and is welded gas-tight directly or via a pipe socket to the furnace shell in order to seal the fastening point of the cooling plate by means of protective tubes against undesired furnace gas leakage.
Aus der DE 296 08 464 U1 ist es bekannt, die Kühlplatte ausschließlich mit Hilfe ihrer Kühlmittelrohre am Ofenpanzer zu befestigen. Dabei werden die Kühlmittelrohre durch Bohrungen im Ofenpanzer geführt und mittels eines an einem Rohransatz verschweißten Kompensators einerseits und mittels einer Schweißstelle zwischen Kompensator und Kühlmittelrohr andererseits elastisch mit dem Ofenpanzer verbunden.From DE 296 08 464 U1 it is known to attach the cooling plate to the furnace shell exclusively with the aid of its coolant pipes. The coolant tubes are guided through bores in the furnace shell and, on the one hand, are connected elastically to the furnace shell by means of a compensator welded to a tube attachment and, on the other hand, by means of a weld between the compensator and the coolant tube.
Es ist Aufgabe der Erfindung, eine Befestigung für Kupferkühlplatten an einer Ofenpanzerung anzugeben, wodurch ohne größeren Aufwand die Kupferkühlplatte montiert und demontiert werden kann und die es gestattet, dass zumindest auf ein Teil der sonst üblichen Kompensatoren verzichtet werden kann und die auch wechselnden thermischen Belastungen gegenüber beständig ist.It is an object of the invention to provide a mounting for copper cooling plates on a furnace armor, whereby the copper cooling plate can be assembled and disassembled with little effort and which allows that at least some of the otherwise usual compensators can be dispensed with and the changing thermal loads is stable.
Die gestellte Aufgabe wird bei einer Kupferkühlplatte der eingangs genannten Art mit den kennzeichnenden Merkmalen des Anspruchs 1 dadurch gelöst, dass die Kupferkühlplatten zusätzlich zur Befestigung durch die mit dem Ofenpanzerblech verschweißten Kühlmittelrohre durch mindestens ein mit dem Ofen- panzerblech verschweißtes Festpunkt-Befestigungselement, beispielsweise einem Befestigungsbolzen, mit dem Ofenpanzerblech verbunden ist. Gemäß der Erfindung sind dabei zwei grundsätzliche Befestigungsvarianten denkbar, die je nach Größe der Kupferkühlplatte und Anzahl der Kühlmittelkanäle bzw. Kühlmittelrohre zur Anwendung gelangen können.The object is achieved in the case of a copper cooling plate of the type mentioned at the outset with the characterizing features of claim 1 in that the copper cooling plates are additionally fastened by at least one coolant tube which is welded to the Armor plate welded fixed point fastening element, for example a fastening bolt, is connected to the furnace armor plate. According to the invention, two basic fastening variants are conceivable, which can be used depending on the size of the copper cooling plate and the number of coolant channels or coolant pipes.
Beispielsweise ist es möglich, die Kupferkühlplatte an einem Befestigungsbolzen oder an einem anderen Befestigungselement aufzuhängen, der bzw. das sich in unmittelbarer Nähe zu den oberen und/oder unteren Kühlmittelrohren befindet, die durch die Ofenpanzerung hindurchführen. Das Befestigungselement ist dabei so mit der Ofenpanzerung und der Kupferkühlplatte verbunden, dass das Befestigungselement als Festpunkt in allen räumlichen Richtungen wirkt. Die unmittelbare Nähe des Befestigungselements zu den Kühlmittelrohren einerseits sowie die sehr niedrige thermische Ausdehnung des Kupfers andererseits führen dazu, dass die aufgrund von Temperaturschwankungen zu erwartenden thermischen Ausdehnungen relativ zwischen dem Befestigungselement und den benachbarten Kühlmittelrohren so gering ausfallen, dass auf die Kompensatoren an diesen Kühlmittelrohren verzichtet werden kann. Die Kühlmittelrohre können also direkt, d. h. ohne Kompensatoren, mit der Ofenpanzerung verschweißt werden und stellen damit weitere Festpunkte dar. Die übrigen Kühlmittelrohre werden wie bisher üblich mit Kompensatoren am Ofenpanzerblech befestigt und stellen somit Lospunkte in allen Raumrichtungen dar. Die Kupferkühlplatte ist darüber hinaus an weiteren Lospunkten mittels entsprechender Befestigungselemente, beispielsweise Schrauben, mit dem Ofenpanzerblech verbunden, durch die Bewegungen aufgrund thermischer Ausdehnung in vertikaler/horizontaler Richtung möglich sind.For example, it is possible to hang the copper cooling plate on a fastening bolt or on another fastening element, which is located in the immediate vicinity of the upper and / or lower coolant pipes which lead through the furnace armor. The fastening element is connected to the furnace armor and the copper cooling plate in such a way that the fastening element acts as a fixed point in all spatial directions. The immediate proximity of the fastening element to the coolant tubes on the one hand and the very low thermal expansion of the copper on the other hand mean that the thermal expansions to be expected due to temperature fluctuations between the fastening element and the adjacent coolant tubes are so small that the compensators on these coolant tubes are dispensed with can be. The coolant pipes can therefore directly, i. H. without compensators, are welded to the furnace armor and thus represent additional fixed points. The other coolant pipes are, as usual, fastened to the furnace armor plate with compensators and thus represent looseness points in all spatial directions. The copper cooling plate is also at other looseness points by means of appropriate fastening elements, for example screws , connected to the furnace armor plate, through which movements due to thermal expansion in the vertical / horizontal direction are possible.
Eine weitere Variante für die Befestigung einer Kupferkühlplatte besteht darin, die Kupferkühlplatte mit mindestens einem Festpunkt-Befestigungselement - etwa in der Mitte der Kupferkühlplatte - zu versehen. Die Kupferkühlplatte, mit zusätzlichen Lospunkt-Befestigungselementen versehen, kann dann gänzlich ohne Kompensatoren am Ofenpanzerblech verschweißt werden, wobei alle Kühlmittelrohre dann als weitere Festpunkte wirken. Die zu erwartenden thermischen Ausdehnungen zwischen den auf diese Weise vorhandenen Festpunkten sind so gering, dass sie vernachlässigt werden können und somit keine Kompensatoren mehr benötigt werden. Der Wegfall der Kompensatoren stellt durch den verminderten Montage- und Schweißaufwand einen erheblichen Vorteil dar, da ein Kompensator zum einen am Ofenpanzerblech und zum anderen am Rohrstutzen der Kupferkühlplatte gasdicht angeschweißt werden müsste.Another variant for fastening a copper cooling plate is to provide the copper cooling plate with at least one fixed point fastening element, for example in the middle of the copper cooling plate. The copper cooling plate, provided with additional loose-point fastening elements, can then be welded to the furnace armor plate entirely without compensators, all of which Coolant pipes then act as additional fixed points. The expected thermal expansions between the fixed points available in this way are so small that they can be neglected and therefore no compensators are required. The elimination of the compensators represents a considerable advantage due to the reduced assembly and welding effort, since a compensator would have to be welded gas-tight on the one hand on the furnace armor plate and on the other hand on the pipe socket of the copper cooling plate.
Diejenigen Kühlmittelrohre, die ohne Kompensatoren gemäß der Erfindung auskommen, werden gasdicht von außen direkt am Ofenpanzerblech angeschweißt und entweder mit Hilfe einer Lochschablone angeordnet oder mit einem einfachen zylindrischen Topf angebracht, der den Abstand des Festpunktes des angeschweißten Kühlmittelrohres zum Körper der Kupferkühlplatte noch vergrößert.Those coolant pipes that do not require compensators according to the invention are welded gas-tight from the outside directly to the furnace armor plate and either arranged with the aid of a perforated template or attached with a simple cylindrical pot, which increases the distance between the fixed point of the welded coolant pipe and the body of the copper cooling plate.
Mit der Befestigung der Kupferkühlplatte gemäß der Erfindung können demnach Kupferkühlplatten in metallurgischen Öfen, insbesondere Hochöfen oder sonstigen Schmelz- und Schmelzreduktionsöfen somit einfacher, schneller und kostengünstiger montiert werden.With the attachment of the copper cooling plate according to the invention, copper cooling plates can therefore be installed in metallurgical furnaces, in particular blast furnaces or other smelting and smelting reduction furnaces more easily, more quickly and more cost-effectively.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung werden nachfolgend anhand von in schematischen Zeichnungsfiguren dargestellten Ausführungsbeispielen näher erläutert, wobei gleiche Konstruktionsteile mit gleichen Bezugsziffern gekennzeichnet sind. Es zeigen:Further advantages, features and details of the invention are explained in more detail below on the basis of exemplary embodiments illustrated in schematic drawing figures, the same construction parts being identified with the same reference numbers. Show it:
Fig. 1 eine anschlussseitige Draufsicht auf eine Kupferkühlplatte mit einem oben angeordneten Festpunkt-Befestigungselement,1 is a connection-side plan view of a copper cooling plate with a fixed-point fastening element arranged at the top,
Fig. 2 eine Seitenansicht der Kupferkühlplatte mit Ofenpanzerblech gemäß Fig. 1 , Fig. 3 eine anschlussseitige Draufsicht auf eine Kupferkühlplatte mit zwei in der Mitte der Kupferkühlplatte angeordneten Festpunkt- Befestigungselementen,FIG. 2 shows a side view of the copper cooling plate with a furnace armor plate according to FIG. 1, 3 is a connection-side plan view of a copper cooling plate with two fixed point fastening elements arranged in the middle of the copper cooling plate,
Fig. 4 eine Seitenansicht der Kupferkühlplatte mit Ofenpanzerblech gemäß Fig. 3.FIG. 4 shows a side view of the copper cooling plate with a furnace armor plate according to FIG. 3.
In den Figuren 1 und 2 ist in einer Draufsicht (Fig. 1 ) und in einer Seitenansicht (Fig. 2) eine Kupferkühlplatte 10 dargestellt mit vier Kühlmittelkanälen (nicht sichtbar), deren Kühlmittelrohre 13, 14 zum Zuführen und Abführen des Kühlmittels am oberen und am unteren Teil der Kupferkühlplatte 10 angeordnet sind. In unmittelbarer Nähe der oberen Kühlmittelrohre 13 ist als Festpunkt- Befestigungselement 11 ein Befestigungsbozen angeordnet, der mit einer Scheibe 17 am Ofenpanzerblech 15 angeschweißt ist.In Figures 1 and 2, a copper cooling plate 10 is shown in a plan view (Fig. 1) and in a side view (Fig. 2) with four coolant channels (not visible), the coolant tubes 13, 14 for supplying and removing the coolant at the top and are arranged on the lower part of the copper cooling plate 10. In the immediate vicinity of the upper coolant tubes 13, a fastening bolt is arranged as a fixed point fastening element 11, which is welded to the furnace armor plate 15 with a disk 17.
Durch die örtliche Nähe des Festpunkt-Befestigungselements 11 zu den Kühlmittelrohren 13 können diese Kühlmittelrohre 13 ohne die sonst üblichen Kompensatoren direkt mit dem Ofenpanzerblech 15 mit einer Scheibe 17 verschweißt werden.Due to the local proximity of the fixed point fastening element 11 to the coolant tubes 13, these coolant tubes 13 can be welded directly to the furnace armor plate 15 with a disk 17 without the otherwise usual compensators.
Die unteren Kühlmittelrohre 14, die örtlich zu weit vom Festpunkt- Befestigungselement 1 1 entfernt sind, sind unverändert mit Kompensatoren 16 mit dem Ofenpanzerblech 15 verbunden.The lower coolant pipes 14, which are too far away from the fixed point fastening element 11, are unchanged connected to the furnace armor plate 15 with compensators 16.
Weiterhin sind noch mehrere Lospunkt-Befestigungselemente 12, in diesem Ausführungsbeispiel Befestigungsschrauben, zur weiteren Befestigung der Kupferkühlplatte 10 an dem Ofenpanzerblech 15 über die Fläche der Kupferkühlplatte 10 symmetrisch verteilt angeordnet.Furthermore, a plurality of starting point fastening elements 12, in this exemplary embodiment fastening screws, are arranged symmetrically distributed over the surface of the copper cooling plate 10 for further fastening of the copper cooling plate 10 to the furnace armor plate 15.
Durch die erfindungsgemäße Befestigung der Kupferkühlplatte 10 an dem Ofenpanzerblech 15 werden auftretende Kräfte durch thermische Ausdehnung problemlos aufgenommen, wobei die oberen Kühlmittelrohre 13 und der Befe- stigungsbozen 11 als Festpunkte, die unteren Kühlmittelrohre 14 mit Kompensatoren 16 in alle räumlichen Richtungen als Lospunkte und die Befestigungsschrauben 12 in vertikal/horizontaler Richtung ebenfalls als Lospunkte wirken.Due to the inventive attachment of the copper cooling plate 10 to the furnace armor plate 15, occurring forces are easily absorbed by thermal expansion, the upper coolant tubes 13 and the fitting Stigungsbozen 11 as fixed points, the lower coolant tubes 14 with compensators 16 in all spatial directions as loops and the fastening screws 12 in the vertical / horizontal direction also act as loops.
In den Figuren 3 und 4 ist in einer Draufsicht (Fig. 3) und in einer Seitenansicht (Fig. 4) eine weitere Befestigungsart bzw. Ausführungsform einer Kupferkühlplatte 10' in Verbindung mit dem Ofenpanzerblech 15 gemäß der Erfindung dargestellt. In diesem Ausführungsbeispiel sind zwei Festpunkt- Befestigungselemente 11 (Befestigungsbolzen) in der Mitte der Kupferkühlplatte 10' angeordnet. Zusätzlich sind, wie auch im Ausführungsbeispiel der Fig. 1 und 2, weitere Lospunkt-Befestigungselemente 12 (Befestigungsschrauben) vorhanden. Bei dieser in den Figuren 3 und 4 gezeigten Befestigungvariante kann auf sämtliche Kompensatoren verzichtet werden, da die thermischen Ausdehnungen relativ zwischen den Festpunkt-Befestigungselementen und den Festpositionen der oberen und auch der unteren Kühlmittelrohre 13 so gering sind, dass diese vernachlässigt werden können. Die Befestigung der Kupferkühlplatte 10' besteht demnach bei dieser Variante aus den Festpunkten der Befestigungsbolzen 11 und der angeschweißten Kühlmittelrohre 13, 14 sowie den Lospunkten (in vertikal/horizontaler Richtung) der Befestigungsschrauben 12.FIGS. 3 and 4 show a top view (FIG. 3) and a side view (FIG. 4) of a further type of fastening or embodiment of a copper cooling plate 10 'in connection with the furnace shell plate 15 according to the invention. In this exemplary embodiment, two fixed point fastening elements 11 (fastening bolts) are arranged in the middle of the copper cooling plate 10 '. In addition, as in the exemplary embodiment in FIGS. 1 and 2, further starting point fastening elements 12 (fastening screws) are present. In the case of this fastening variant shown in FIGS. 3 and 4, it is possible to dispense with all compensators, since the thermal expansions between the fixed point fastening elements and the fixed positions of the upper and also the lower coolant tubes 13 are so small that they can be neglected. In this variant, the copper cooling plate 10 ′ is therefore fastened from the fixed points of the fastening bolts 11 and the welded-on coolant tubes 13, 14 and the loose points (in the vertical / horizontal direction) of the fastening screws 12.
Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt, sondern insbesondere im Hinblick auf die Anzahl und Anordnung der Festpunkt- und Lospunkt-Befestigungselemente sowie auf ihre Ausbildung als Bolzen bzw. Schrauben sind je nach Größe der Kupferkühlplatten entsprechende Variationen möglich, wenn dadurch der Wegfall von Kompensatoren im Sinne der Erfindung ermöglicht wird. The invention is not limited to the exemplary embodiments shown, but in particular with regard to the number and arrangement of the fixed point and loose point fastening elements and their design as bolts or screws, depending on the size of the copper cooling plates, corresponding variations are possible if this eliminates Compensators in the sense of the invention is made possible.

Claims

Ansprüche Expectations
1. Kupferkühlplatte für mit einer feuerfesten Auskleidung und einem äußeren Ofenpanzerblech versehene metallurgische Öfen, wie Hochöfen, Schmelz- oder Schmelzreduktionsöfen, die von einem Kühlmittel durchströmt zwischen dem Ofenpanzerblech und der feuerfesten Ausmauerung angeordnet ist, wobei die Kühlmittelrohre der Kupferkühlplatte zum Zuführen und zum Abführen des Kühlmittels durch das Ofenpanzerblech nach außen geführt und mit dem Ofenpanzerblech gasdicht verschweißt sind, dadurch gekennzeichnet, dass die Kupferkühlplatte (10, 10') zusätzlich zur Befestigung durch die mit dem Ofenpanzerblech (15) verschweißten Kühlmittelrohre (13, 14) durch mindestens ein mit dem Ofenpanzerblech (15) verschweißtes Festpunkt-Befestigungselement (11), beispielsweise einem Befestigungsbolzen, mit dem Ofenpanzerblech (15) verbunden i s t .1. Copper cooling plate for metallurgical furnaces, such as blast furnaces, smelting or smelting reduction furnaces provided with a refractory lining and an outer furnace armor plate, through which a coolant flows between the furnace armor plate and the refractory lining, the coolant tubes of the copper cooling plate for supplying and discharging the Coolant is led through the furnace armor plate to the outside and welded to the furnace armor plate in a gas-tight manner, characterized in that the copper cooling plate (10, 10 ') is additionally fastened by the coolant pipes (13, 14) welded to the furnace armor plate (15) by at least one with the Furnace armor plate (15) welded fixed point fastening element (11), for example a fastening bolt, is connected to the furnace armor plate (15).
2. Kupferkühlplatte nach Anspruch 1 , dadurch gekennzeichnet, dass die Kupferkühlplatte (10, 10') zusätzlich durch mindestens ein Lospunkt-Befestigungselement (12), das thermische Ausdehnungsbewegungen der Kupferkühlplatte (10, 10') in horizontaler und vertikaler Richtung zulässt, beispielsweise einer Befestigungsschraube, mit dem Ofenpanzerblech (15) fest verbunden ist.2. Copper cooling plate according to claim 1, characterized in that the copper cooling plate (10, 10 ') additionally by at least one starting point fastening element (12) which allows thermal expansion movements of the copper cooling plate (10, 10') in the horizontal and vertical directions, for example one Fastening screw, which is firmly connected to the oven armor plate (15).
3. Kupferkühlplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein oder mehrere Festpunkt-Befestigungselemente (11) im oberen und/oder unteren Teil der Kupferkühlplatte (10, 10') in unmittelbarer Nähe der Kühlmittelrohre (13, 14) angeordnet sind. 3. Copper cooling plate according to claim 1 or 2, characterized in that one or more fixed point fastening elements (11) in the upper and / or lower part of the copper cooling plate (10, 10 ') are arranged in the immediate vicinity of the coolant tubes (13, 14).
4. Kupferkühlplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein oder mehrere Festpunkt-Befestigungselemente (11 ) in der Mitte der Kupferkühlplatte (10, 10') angeordnet sind.4. Copper cooling plate according to claim 1 or 2, characterized in that one or more fixed point fastening elements (11) in the middle of the copper cooling plate (10, 10 ') are arranged.
5. Kupferkühlplatte nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass zumindest ein Teil der Kühlmittelrohre (13,14) ohne Verwendung eines Kompensators direkt mit dem Ofenpanzerblech (15) verschweißt sind. 5. Copper cooling plate according to claim 3 or 4, characterized in that at least some of the coolant tubes (13, 14) are welded directly to the furnace shell (15) without using a compensator.
EP00965931A 1999-09-10 2000-09-07 Metallurfical furnace having copper cooling plates Expired - Lifetime EP1218549B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19943287 1999-09-10
DE19943287A DE19943287A1 (en) 1999-09-10 1999-09-10 Copper cooling plate for metallurgical furnaces
PCT/EP2000/008726 WO2001020045A1 (en) 1999-09-10 2000-09-07 Copper cooling plate for metallurgical furnaces

Publications (2)

Publication Number Publication Date
EP1218549A1 true EP1218549A1 (en) 2002-07-03
EP1218549B1 EP1218549B1 (en) 2004-02-04

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EP00965931A Expired - Lifetime EP1218549B1 (en) 1999-09-10 2000-09-07 Metallurfical furnace having copper cooling plates

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US (1) US6843958B1 (en)
EP (1) EP1218549B1 (en)
JP (1) JP2003509588A (en)
KR (1) KR20020029782A (en)
CN (1) CN1206371C (en)
AR (1) AR025597A1 (en)
AT (1) ATE258994T1 (en)
AU (1) AU770082B2 (en)
BR (1) BR0013293A (en)
CA (1) CA2384455A1 (en)
CZ (1) CZ2002864A3 (en)
DE (2) DE19943287A1 (en)
EG (1) EG22979A (en)
ES (1) ES2215728T3 (en)
HU (1) HUP0204298A2 (en)
MX (1) MXPA02002533A (en)
PL (1) PL354311A1 (en)
RU (1) RU2245372C2 (en)
SK (1) SK3412002A3 (en)
TR (1) TR200200624T2 (en)
TW (1) TW533240B (en)
WO (1) WO2001020045A1 (en)
ZA (1) ZA200202202B (en)

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Also Published As

Publication number Publication date
WO2001020045A1 (en) 2001-03-22
CZ2002864A3 (en) 2002-08-14
CN1373814A (en) 2002-10-09
ATE258994T1 (en) 2004-02-15
DE19943287A1 (en) 2001-03-15
SK3412002A3 (en) 2002-12-03
CA2384455A1 (en) 2001-03-22
HUP0204298A2 (en) 2003-03-28
JP2003509588A (en) 2003-03-11
AR025597A1 (en) 2002-12-04
TR200200624T2 (en) 2002-09-23
ES2215728T3 (en) 2004-10-16
MXPA02002533A (en) 2002-10-23
CN1206371C (en) 2005-06-15
PL354311A1 (en) 2004-01-12
EG22979A (en) 2003-12-31
RU2245372C2 (en) 2005-01-27
KR20020029782A (en) 2002-04-19
TW533240B (en) 2003-05-21
AU770082B2 (en) 2004-02-12
ZA200202202B (en) 2002-10-18
EP1218549B1 (en) 2004-02-04
US6843958B1 (en) 2005-01-18
BR0013293A (en) 2002-07-02
AU7650700A (en) 2001-04-17
DE50005224D1 (en) 2004-03-11

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