EP0688876A2 - Cooled mantle ring for a converter - Google Patents

Cooled mantle ring for a converter Download PDF

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Publication number
EP0688876A2
EP0688876A2 EP95250136A EP95250136A EP0688876A2 EP 0688876 A2 EP0688876 A2 EP 0688876A2 EP 95250136 A EP95250136 A EP 95250136A EP 95250136 A EP95250136 A EP 95250136A EP 0688876 A2 EP0688876 A2 EP 0688876A2
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EP
European Patent Office
Prior art keywords
support ring
converter
converter support
cooled
ring according
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
EP95250136A
Other languages
German (de)
French (fr)
Other versions
EP0688876B1 (en
EP0688876A3 (en
Inventor
Karlheinz Langlitz
Gunter Schmitz
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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Filing date
Publication date
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Publication of EP0688876A2 publication Critical patent/EP0688876A2/en
Publication of EP0688876A3 publication Critical patent/EP0688876A3/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4646—Cooling arrangements
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4633—Supporting means

Definitions

  • the invention relates to a cooled converter support ring, which is arranged at a distance from the converter, surrounds it and is connected to a coolant supply station.
  • converters for steelmaking are stored in loose support rings.
  • the thermal load on the converter wall as well as that of the support ring becomes ever higher.
  • This thermal load also has an effect on the support ring arranged at a distance of approximately 100 to 200 mm from the converter.
  • a cooling medium is introduced into the space between the ring and the vessel jacket.
  • an air cooling system for warm-running metallurgical vessels equipped with a loose support ring is known, in which air channels are arranged on the outside of the support ring, via the cooling air between Support ring and outer wall of the metallurgical vessel is guided.
  • the invention has set itself the goal of creating a cooling system for a converter support ring which allows free access to the support ring with simple means and ensures reliable cooling of the loaded support ring surfaces with little energy expenditure.
  • a predominantly meandering tubular coolant guide is provided on the jacket of the converter support ring.
  • Parts of the coolant guide for example in the event of breakthroughs through the transverse bulkheads, can be configured by parallel pipes. Cooling water is led through this coil in a relatively small amount but at a relatively high speed.
  • the coil is arranged so that the individual parallel pipe pieces are at least twice the diameter apart (based on the center line), so that from a cooling line, large parts of the support ring shell are cooled without coming into contact with the cooling medium.
  • the inventors furthermore propose to include part of the support ring casing in the cooling system.
  • Tube profiles such as half-tube, angle and U-profile are used for this. These can be intimately connected to the support ring jacket using simple welds.
  • a cooling block which, for example, consists of aluminum and is connected to one another Has holes. This block is pressed against the inner surface of the support ring via a contact mass. Furthermore, it is proposed to divide the coolant guides into separate cooling circuits and to connect them to a control device. This measure enables the energy consumption to be reduced even further, since the cooling can be started here in a manner adapted to the load.
  • FIG. 1 shows a detail of the converter jacket 11 of the converter 10 provided with a refractory lining 12.
  • a converter support ring 20 is arranged at a distance from the converter 10 and has a transverse pod 26 connected to the support ring jacket 21.
  • a tube coil 31 is provided on the inner surface 22 on the upper flange 23, on the lower flange 25 and on the inside 24 of the support ring jacket 21 facing the converter 10.
  • FIG. 2 shows various embodiments of this tube coil, which is designed as a tube profile 32 and, in the examples shown, is attached to the inside 24 of the support ring jacket 21.
  • the tubular profile 32 is designed as a square 33, which is welded to the inside 24 and is connected to the latter via a contact mass 41 in terms of heat flow.
  • an angle 34, a half-tube 35 and a U-profile 36 are shown, the free ends of the profiles being connected to the inside 24 and forming the tube profile 32 with it.
  • the last example shows a block 37 in which bores 38 are made.
  • the block 37 is connected via a contact mass 41 to the Inside 24 of the support ring jacket 21 connected.
  • FIG. 3 shows a longitudinal section through the upper chord 23 and the lower chord 25 as well as the transverse pod 26 of the support ring 20.
  • the meandering course of the pipe coil 31 is shown in a top view, namely in the left side of the cooling circuit K1 with a substantially vertical flow direction and the right side of the cooling circuit K2 with an essentially horizontal cooling coil guide.
  • the cooling circuits K1 and K2 are connected to a control and regulating device 54, which have a safety valve 51, a pressure switch 52 and a temperature sensor 53.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Discharge Heating (AREA)
  • General Induction Heating (AREA)

Abstract

A cooled converter trunnion ring, which is arranged at a distance from the converter, encompasses the converter and is connected to a coolant supply station. In order to achieve good accessibility of the trunnion ring by simple measures and to ensure reliable cooling of the loaded trunnion ring areas with low energy expenditure, a pipe coil, which runs in a largely meandering fashion and through which a liquid coolant flows, is provided on the inner surface of the inner side member substantially facing the converter of the steel mantle of the converter trunnion ring.

Description

Die Erfindung betrifft einen gekühlten Konvertertragring, der im Abstand zum Konverter angeordnet, diesen umgreift und der an eine Kühlmittelversorgungsstation angeschlossen ist.The invention relates to a cooled converter support ring, which is arranged at a distance from the converter, surrounds it and is connected to a coolant supply station.

Konverter für die Stahlerzeugung sind ab einer gewissen Größe in losen Tragringen gelagert. Bei der gesteigerten Anforderung an die Leistungsfähigkeit des Konvertergefäßes, insbesondere bei der Verwendung von feuerfest Ausmauerungen mit hohem Kohlenstoffgehalt wird die thermische Belastung der Konverterwand wie auch die des Tragringes immer höher. Diese thermische Belastung wirkt sich auch auf den mit einem Abstand von etwa 100 bis 200 mm vom Konverter angeordneten Tragring aus.From a certain size, converters for steelmaking are stored in loose support rings. With the increased demands on the performance of the converter vessel, in particular when using refractory bricks with a high carbon content, the thermal load on the converter wall as well as that of the support ring becomes ever higher. This thermal load also has an effect on the support ring arranged at a distance of approximately 100 to 200 mm from the converter.

Um ein überschreiten der zulässigen Grenzen des Gefäßmantels zu verhindern, um gleichzeitig die thermische Belastung des Konvertragringes zu mindern, wird in den Zwischenraum zwischen Ring und Gefäßmantel ein Kühlmedium geführt. So ist aus der Schrift DE 39 27 928 A1 ein Luftkühlsystem für mit losem Tragring ausgerüstete warmgängige metallurgische Gefäße bekannt, bei dem auf der Außenseite des Tragringes Luftkanäle angeordnet sind, über die Kühlluft zwischen Tragring und Außenwand des metallurgischen Gefäßes geführt wird.In order to prevent the permissible limits of the vessel jacket from being exceeded, and at the same time to reduce the thermal load on the contract ring, a cooling medium is introduced into the space between the ring and the vessel jacket. From document DE 39 27 928 A1 an air cooling system for warm-running metallurgical vessels equipped with a loose support ring is known, in which air channels are arranged on the outside of the support ring, via the cooling air between Support ring and outer wall of the metallurgical vessel is guided.

Nachteil dieses Luftkühlsystems ist nicht nur die geringe Fähigkeit von gasförmigen Medien, wärme abzuführen, sondern auch das aus Umweltgründen recht ungern gesehene Abblasen der Luft.The disadvantage of this air cooling system is not only the poor ability of gaseous media to dissipate heat, but also the fact that the air is blown off, which is quite unwelcome for environmental reasons.

Weiterhin ist es bekannt, den Tragring zum Zwecke der Kühlung vollständig mit Wasser zu füllen. Das durch die Tragzapfen zu- bzw. abgeführte Wasser erhöht in nachteiliger Weise das Gewicht des Tragringes. Darüber hinaus kann bei besonderen Störfällen, beispielsweise bei einem Gefäßdurchbruch der Tragring in Mitleidenschaft gezogen werden, so daß in gefährlicher Weise flüssige Schmelze und nicht beeinflußbare Wassermengen unterhalb des Konverters zusammentreffen. Darüber hinaus kommt es bei hohen thermischen Belastungen des Tragringmantels, insbesondere bei der geringen Fließgeschwindigkeit des Kühlwassers, an der Innenwand zu Bläschenbitdungen - sog.Furthermore, it is known to completely fill the support ring with water for the purpose of cooling. The water supplied or discharged through the trunnion disadvantageously increases the weight of the support ring. In addition, in the event of special malfunctions, for example in the event of a vessel breakthrough, the support ring can be affected, so that liquid melt and water quantities which cannot be influenced come together below the converter in a dangerous manner. In addition, with high thermal loads on the supporting ring jacket, especially with the low flow rate of the cooling water, vesicles are formed on the inner wall.

Leidenfrosteffekt - mit der negativen Folge, daß die Wärmeabfuhr an diesen Stellen behindert wird.Suffering frost effect - with the negative consequence that the heat dissipation at these places is impeded.

Weiterhin ist durch das Auffüllen des Innenraums des Konvertertragringes eine Zugänglichkeit für Kontroll- und Wartungsarbeiten nicht mehr gegeben.Furthermore, by filling the interior of the converter support ring, there is no longer any access for control and maintenance work.

Die Erfindung hat sich das Ziel gesetzt, ein Kühlsystem für einen Konvertertragring zu schaffen, der mit einfachen Mitteln eine freie Zugänglichkeit des Tragringes erlaubt und mit geringem Energieaufwand eine sichere Kühlung der belasteten Tragringflächen gewährleistet.The invention has set itself the goal of creating a cooling system for a converter support ring which allows free access to the support ring with simple means and ensures reliable cooling of the loaded support ring surfaces with little energy expenditure.

Die Erfindung löst dieses Problem mit den kennzeichnenden Merkmalen des Anspruchs 1. Vorteilhafte Weiterbildungen sind in den Unteransprüchen dargelegt.The invention solves this problem with the characterizing features of claim 1. Advantageous further developments are set out in the subclaims.

Erfindungsgemäß wird am Mantel des Konvertertragringes eine überwiegend meanderartig verlegte rohrförmig ausgebildete Kühlmittelführung vorgesehen. Teile der Kühlmittelführung, beispielsweise bei Durchbrüchen durch die Querschottbleche können dabei durch parallel geführte Rohre ausgestaltet sein. Durch diese Rohrschlange wird Kühlwasser in relativ geringer Menge aber mit relativ hoher Geschwindigkeit geführt. Die Rohrschlange ist dabei so angeordnet, daß die einzelnen parallel geführten Rohrstücke mindestens einen Abstand des doppelten Durchmessers (bezogen auf die Mittellinie) aufweisen, so daß von einer Kühllinie aus breite Teile des Tragringmantels gekühlt werden, ohne dabei mit dem Kühlmedium in Kontakt zu treten. Der Vorteil hiervon ist nicht nur die Möglichkeit der Reduzierung der erforderlichen Kühlmittelmenge bei gleichzeitiger Erhöhung der Strömungsgeschwindigkeit, sondern auch das Belassen von freien Flächen zwecks Kontrolle des Tragringmantels beispielsweise nach Rissen o. ä. Weiterhin läßt sich bei extremen Notfällen, etwa bei örtlicher Zerstörung des Tragringes, die Kühlmittelzufuhr kurzfristig stoppen, ohne daß größere Wassermengen nachfließen.According to the invention, a predominantly meandering tubular coolant guide is provided on the jacket of the converter support ring. Parts of the coolant guide, for example in the event of breakthroughs through the transverse bulkheads, can be configured by parallel pipes. Cooling water is led through this coil in a relatively small amount but at a relatively high speed. The coil is arranged so that the individual parallel pipe pieces are at least twice the diameter apart (based on the center line), so that from a cooling line, large parts of the support ring shell are cooled without coming into contact with the cooling medium. The advantage of this is not only the possibility of reducing the amount of coolant required while increasing the flow rate, but also leaving free areas for the purpose of checking the support ring jacket, for example after cracks or the like. Furthermore, in extreme emergencies, such as local destruction of the support ring , stop the coolant supply for a short time without large amounts of water flowing in.

Die Erfinder schlagen weiterhin vor, einen Teil des Tragringmantels mit in das Kühlsystem einzubeziehen. Zum Einsatz kommen hierzu Rohrprofile wie Halbrohr, Winkel- und U-Profil. Diese lassen sich über einfache Schweißnähte innig mit dem Tragringmantel verbinden.The inventors furthermore propose to include part of the support ring casing in the cooling system. Tube profiles such as half-tube, angle and U-profile are used for this. These can be intimately connected to the support ring jacket using simple welds.

In einer weiteren Ausgestaltung wird ein Kühlblock vorgeschlagen, der beispielsweise aus Aluminium besteht und miteinander verbundene Bohrungen aufweist. Dieser Block wird über eine Kontaktmasse gegen die Innenfläche des Tragringes gedrückt. Weiterhin wird vorgeschlagen, die Kuhlmittelführungen in separate Kühlkreisläufe aufzuteilen und diese in eine Regeleinrichtung anzuschließen. Durch diese Maßnahme kann der Energieverbrauch noch weiter gesenkt werden, da hier an die Belastung angepaßt die Kühlung in Gang gesetzt werden kann.In a further embodiment, a cooling block is proposed which, for example, consists of aluminum and is connected to one another Has holes. This block is pressed against the inner surface of the support ring via a contact mass. Furthermore, it is proposed to divide the coolant guides into separate cooling circuits and to connect them to a control device. This measure enables the energy consumption to be reduced even further, since the cooling can be started here in a manner adapted to the load.

Ein Beispiel der Erfindung ist in der beigefügten Zeichnung dargetegt. Dabei zeigt die

  • Figur 1 einen Schnitt durch den Konvertertragring
  • Figur 2 Ausgestaltungen der Rohrschlange
  • Figur 3 eine Meß- und Regeleinrichtung der Kühlwasserführung.
An example of the invention is shown in the accompanying drawing. The shows
  • 1 shows a section through the converter support ring
  • Figure 2 configurations of the coil
  • Figure 3 shows a measuring and control device of the cooling water guide.

In der Figur 1 ist als Ausschnitt der mit einer feuerfesten Auskleidung 12 versehene konvertermantet 11 des Konverters 10 dargestellt.FIG. 1 shows a detail of the converter jacket 11 of the converter 10 provided with a refractory lining 12.

Vom Konverter 10 beabstandet ist ein Konvertertragring 20 angeordnet der mit dem Tragringmantel 21 verbundene Querschote 26 besitzt. An der Innenfläche 22 ist am Übergurt 23, am Untergurt 25 sowie auf der dem Konverter 10 zugewandten Innenseite 24 des Tragringmantels 21 eine Rohrschlange 31 vorgesehen.A converter support ring 20 is arranged at a distance from the converter 10 and has a transverse pod 26 connected to the support ring jacket 21. A tube coil 31 is provided on the inner surface 22 on the upper flange 23, on the lower flange 25 and on the inside 24 of the support ring jacket 21 facing the converter 10.

In der Figur 2 sind verschiedene Ausführungsformen dieser als Rohrprofil 32 ausgebildeten Rohrschlange dargestellt, die in den ausgeführten Beispielen an der Innenseite 24 des Tragringmantels 21 angebracht sind.FIG. 2 shows various embodiments of this tube coil, which is designed as a tube profile 32 and, in the examples shown, is attached to the inside 24 of the support ring jacket 21.

In der linken oberen Hälfte der Figur 2 ist das Rohrprofil 32 als Vierkant 33 ausgebildet, das an der Innenseite 24 angeschweißt ist und über eine Kontaktmasse 41 wärmestrommäßig mit dieser verbunden ist.In the upper left half of FIG. 2, the tubular profile 32 is designed as a square 33, which is welded to the inside 24 and is connected to the latter via a contact mass 41 in terms of heat flow.

In dem danach folgenden Beispiel ist ein Winkel 34, ein Halbrohr 35 und ein U-Profil 36 dargestellt, wobei die jeweils freien Enden der Profile mit der Innenseite 24 verbunden sind und mit dieser das Rohrprofil 32 bilden.In the example that follows, an angle 34, a half-tube 35 and a U-profile 36 are shown, the free ends of the profiles being connected to the inside 24 and forming the tube profile 32 with it.

Als letztes Beispiel ist ein Block 37 dargestellt in dem Bohrungen 38 eingebracht sind. Der Block 37 ist über eine Kontaktmasse 41 mit der Innenseite 24 des Tragringmantels 21 verbunden.The last example shows a block 37 in which bores 38 are made. The block 37 is connected via a contact mass 41 to the Inside 24 of the support ring jacket 21 connected.

Die Figur 3 zeigt einen Längsschnitt durch den Obergurt 23 und den Untergurt 25 sowie die Querschote 26 des Tragringes 20. In Draufsicht ist der meanderförmige Verlauf der Rohrschlange 31 dargestellt, und zwar in der linken Seite der Kühlkreislauf K1 mit einer im wesentlichen vertikalen Fließrichtung und der rechten Seite der Kühlkreislauf K2 mit einer im wesentlichen horizontalen Kühlschlangenführung.FIG. 3 shows a longitudinal section through the upper chord 23 and the lower chord 25 as well as the transverse pod 26 of the support ring 20. The meandering course of the pipe coil 31 is shown in a top view, namely in the left side of the cooling circuit K1 with a substantially vertical flow direction and the right side of the cooling circuit K2 with an essentially horizontal cooling coil guide.

Die Kühlkreisläufe K1 und K2 sind mit einer Steuer- und Regeleinrichtung 54 verbunden, die ein Sicherheitsventil 51, einen Druckwächter 52 sowie einen Temperaturfühler 53 aufweisen.The cooling circuits K1 and K2 are connected to a control and regulating device 54, which have a safety valve 51, a pressure switch 52 and a temperature sensor 53.

Positionsliste:Position list:

1010th
Konverterconverter
1111
KonvertermantelConverter jacket
1212th
Feuerfest AuskleidungFireproof lining
2020th
TragringSupport ring
2121
TragringmantelTragringmantel
2222
InnenflächeInner surface
2323
ObergurtTop chord
2424th
Innenseiteinside
2525th
UntergurtLower chord
2626
QuerschotTransverse bulkhead
3030th
KühlmittelführungCoolant management
3131
RohrschlangePipe coil
3232
RohrprofilPipe profile
3333
VierkantSquare
3434
Winkelangle
3535
HalbrohrHalf pipe
3636
U-ProfilU profile
3737
Blockblock
3838
BohrungenHoles
4040
WärmeübertragungHeat transfer
4141
KontaktmasseContact mass
5050
RegelkreisControl loop
5151
SicherheitsventilSafety valve
5252
DruckwächterPressure switch
5353
TemperaturfühlerTemperature sensor
5454
Steuer- und RegeleinrichtungControl and regulating device
aa
Abstanddistance
DD
Durchmesserdiameter
II.
MittenachseCenter axis
KK
KühlkreislaufCooling circuit

Claims (10)

Gekühlter Konvertertragring, der im Abstand zum Konverter angeordnet diesen umgreift und der an eine Kühlmittelversorgungsstation angeschlossen ist,
dadurch gekennzeichnet,
daß an der Innenfläche (22) des Stahlmantels (21) im wesentlichen der dem Konverter (10) zugewandten Innenseite (24) des Konvertertragringes (20) eine überwiegend meanderartig verlegte, von einem flüssigen Kühlmittel durchströmte Rohrschlange (31)vorgesehen ist.Cooled converter support ring, which is arranged at a distance from the converter and which is connected to a coolant supply station,
characterized,
that on the inner surface (22) of the steel jacket (21) essentially the inside (24) facing the converter (10) of the converter support ring (20) is a predominantly meandering pipe coil (31) through which a liquid coolant flows. Gekühlter Konvertertragring nach Anspruch 1
dadurch gekennzeichnet,
daß bei der Rohrschlange (31) ein Teil des Rohrprofils (32) von der Innenfläche (22) des Tragringmantels (21) gebildet wird.A cooled converter support ring according to claim 1
characterized,
that part of the tubular profile (32) is formed by the inner surface (22) of the support ring jacket (21) in the pipe coil (31). Gekühlter Konvertertragring nach Anspruch 2,
dadurch gekennzeichnet,
daß die den Teil des Rohrprofils bildende Innenfläche (22) des Konvertertragringmantels (21) weniger als die Hälfte der Gesamtinnenfläche umfaßt und der übrige Teil des Rohrprofils insbesondere als Winkel (34), Halbrohr (35) oder U-Profil (35) ausgebildet ist.Cooled converter support ring according to claim 2,
characterized,
that the part of the tube profile forming the inner surface (22) of the converter support ring jacket (21) comprises less than half of the total inner surface and the remaining part of the tube profile is designed in particular as an angle (34), half tube (35) or U-profile (35). Gekühlter Konvertertragring nach den Ansprüche 2 oder 3,
dadurch gekennzeichnet,
daß der Abstand (a) zweier benachbarter Rohrschlagen (31) bezogen auf ihre Mittenachsen (I) mindestens das 2-fache ihres Durchmessers (D) beträgt.Cooled converter support ring according to claims 2 or 3,
characterized,
that the distance (a) between two adjacent pipe runs (31) with respect to their central axes (I) is at least twice their diameter (D). Gekühlter Konvertertragring nach Anspruch 2,
dadurch gekennzeichnet,
daß die die gemeinsame Wand der Rohrschlange (31) bildende Innenfläche (22) des Konvertertragringes (20) im Querschnitt dem Umfang UT < 0,7 UR entspricht, wobei UT der von der Tragringinnenfläche gebildete Umfang und UR der Restumfang des Rohrprofils (32) ist.Cooled converter support ring according to claim 2,
characterized,
that the inner wall (22) of the converter support ring (20) forming the common wall of the tube coil (31) corresponds in cross section to the circumference UT <0.7 UR, UT being the circumference formed by the inner surface of the support ring and UR being the remaining circumference of the tube profile (32) . Gekühlter Konvertertragring nach Anspruch 1,
dadurch gekennzeichnet,
daß die Rohrschlange (31) durch Bohrungen (38) in einem Kühlblock (37) gebildet wird, wobei der Kühlblock (37) über eine Kontaktmasse (41) ganzflächig mit der Innenfläche (22) des Konvertertragringes (20) verbunden ist.Cooled converter support ring according to claim 1,
characterized,
that the pipe coil (31) is formed by bores (38) in a cooling block (37), the cooling block (37) being connected over the whole area to the inner surface (22) of the converter support ring (20) via a contact mass (41). Gekühlter Konvertertragring nach Anspruch 6,
dadurch gekennzeichnet,
daß der Kühlblock (37) aus Aluminium ist.Cooled converter support ring according to claim 6,
characterized,
that the cooling block (37) is made of aluminum. Gekühlter Konvertertragring nach Anspruch 6,
dadurch gekennzeichnet,
daß die Kontaktmasse (41) eine Paste mit hoher Leitfähigkeit ist,Cooled converter support ring according to claim 6,
characterized,
that the contact mass (41) is a paste with high conductivity, Gekühlter Konvertertragring nach einem der oben genannten Ansprüche,
dadurch gekennzeichnet,
daß die Kühlmittelführung (30) in separate Kühlkreisläufe (K1-Kn) aufgeteilt ist.Cooled converter support ring according to one of the above claims,
characterized,
that the coolant guide (30) is divided into separate cooling circuits (K1-Kn). Gekühlter Konvertertragring nach Anspruch 9,
dadurch gekennzeichnet,
daß die einzelnen Kühlkreisläufe (K1, K2, ...Kn) an einen Regelkreis (50) angeschlossen sind und über Sicherheitsventile (51), Druckwächter (52) und Temperaturfühler (53) überwacht werden und in ihrer Kühlmittelmenge steuerbar sind.Cooled converter support ring according to claim 9,
characterized,
that the individual cooling circuits (K1, K2, ... Kn) are connected to a control circuit (50) and are monitored via safety valves (51), pressure monitors (52) and temperature sensors (53) and their amount of coolant can be controlled.
EP95250136A 1994-06-20 1995-06-08 Cooled mantle ring for a converter Expired - Lifetime EP0688876B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4423334 1994-06-20
DE4423334A DE4423334C1 (en) 1994-06-20 1994-06-20 Cooled converter carrier ring

Publications (3)

Publication Number Publication Date
EP0688876A2 true EP0688876A2 (en) 1995-12-27
EP0688876A3 EP0688876A3 (en) 1997-01-29
EP0688876B1 EP0688876B1 (en) 1999-07-28

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EP95250136A Expired - Lifetime EP0688876B1 (en) 1994-06-20 1995-06-08 Cooled mantle ring for a converter

Country Status (5)

Country Link
US (1) US5611990A (en)
EP (1) EP0688876B1 (en)
JP (1) JPH083617A (en)
AT (1) ATE182629T1 (en)
DE (2) DE4423334C1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5853656A (en) * 1997-07-08 1998-12-29 Bethlehem Steel Corporation Apparatus and method for cooling a basic oxygen furnace trunnion ring
CA2427409C (en) * 2003-05-01 2007-03-20 Whiting Equipment Canada Inc. Cooling system for a trunnion ring and metallurgical furnace vessel

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Also Published As

Publication number Publication date
DE4423334C1 (en) 1995-10-05
DE59506455D1 (en) 1999-09-02
EP0688876B1 (en) 1999-07-28
ATE182629T1 (en) 1999-08-15
JPH083617A (en) 1996-01-09
EP0688876A3 (en) 1997-01-29
US5611990A (en) 1997-03-18

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