EP1136573A1 - Cooling plate - Google Patents

Cooling plate Download PDF

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Publication number
EP1136573A1
EP1136573A1 EP01106742A EP01106742A EP1136573A1 EP 1136573 A1 EP1136573 A1 EP 1136573A1 EP 01106742 A EP01106742 A EP 01106742A EP 01106742 A EP01106742 A EP 01106742A EP 1136573 A1 EP1136573 A1 EP 1136573A1
Authority
EP
European Patent Office
Prior art keywords
coating
cooling plate
furnace
copper
plate 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.)
Withdrawn
Application number
EP01106742A
Other languages
German (de)
French (fr)
Inventor
Christof Dratner
Hans-Jürgen Hemschemeier
Dietmar Kolbeck
Matthias Dr. Konczalla
Andreas Dr. Krause
Dirk Dr. Rode
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.)
KM Europa Metal AG
Original Assignee
KM Europa Metal 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 KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP1136573A1 publication Critical patent/EP1136573A1/en
Withdrawn legal-status Critical Current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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/24—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/24—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0045—Cooling of furnaces the cooling medium passing a block, e.g. metallic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0056—Use of high thermoconductive elements
    • F27D2009/0062—Use of high thermoconductive elements made from copper or copper alloy

Definitions

  • the invention relates to a cooling plate as part of the furnace wall metallurgical furnace, in particular a melting furnace or shaft furnace, which consists of Copper or a copper alloy exists and is penetrated by coolant channels.
  • Cooling plates made of copper show in Inside, for example, coolant channels generated by mechanical deep drilling which run essentially parallel to the furnace wall.
  • the invention is based on the object of a Provide cooling plate that is clear across all operating situations has improved dimensional stability, so that longer service life is possible become.
  • the invention proposes the inside of the furnace to provide the facing side of the cooling plate with at least one coating, which has a lower thermal conductivity than the copper base material.
  • the core of the invention is therefore the undesirable changes in the cooling plates to reduce by reducing the thermal load on the cooling plates becomes.
  • the cooling plates are coated with a suitable coating on the Provide plate side facing the furnace interior.
  • This coating can be constructed from one or more layers, wherein the individual layers also have different compositions can.
  • the coating or the coatings is or are preferably by a thermal spray process, such as. B. plasma or flame spraying applied.
  • At least one of these layers functions as a Insulating or thermal insulation layer that has a lower thermal conductivity than has the copper base metal.
  • the thermal conductivity of the coating should be less than 320 W / (m • K). In the event that a particularly strong thermal insulation effect is desirable, the thermal conductivity can be less than 10 W / (m • K).
  • the thermal barrier coating can preferably either be metallic or from a Metal-non-metal connection exist. On the other hand, the thermal barrier coating also from a mixture or combination of a metal and a metal-non-ferrous metal compound be composed.
  • the thermal barrier coating can be made from a material based on zirconium oxide be built up, this expediently additions of yttrium oxide contains.
  • a coating with a different composition can be used as the base layer be the liability of the actual insulation layer or the Insulation layer system on the base body improved, e.g. an MCrAIY coating, where "M" is a metal, e.g. Fe, Ni or Co or a combination of these elements means.
  • the thickness of the entire coating is advantageously in the range of 0.1- 1.5 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Blast Furnaces (AREA)

Abstract

Cooling plate consists of copper or a copper alloy and has coolant channels. The side of the cooling plate facing the inside of the oven has a coating having a lower heat conductivity than the copper base material. Preferred Features: The coating has a heat conductivity lower than 320, preferably less than 10 W/(m.k). The coating is made from a material based on zirconium oxide containing yttrium oxide as an additive.

Description

Die Erfindung betrifft eine Kühlplatte als Bestandteil der Ofenwand eines metallurgischen Ofens, insbesondere eines Schmelz- oder Schachtofens, welche aus Kupfer oder einer Kupferlegierung besteht und von Kühlmittelkanälen durchzogen ist.The invention relates to a cooling plate as part of the furnace wall metallurgical furnace, in particular a melting furnace or shaft furnace, which consists of Copper or a copper alloy exists and is penetrated by coolant channels.

In metallurgischen Öfen werden die Ofenwände in einigen Ofenzonen aus wassergekühlten Kühlplatten aufgebaut, die bis vor einigen Jahren noch aus Grauguß oder Stahl bestanden. Diese Materialien besitzen eine relativ geringe Wärmeleitfähigkeit. Wesentlich bessere Wärmeleitfähigkeiten als Grauguß oder Stahl besitzen Kupfer oder Kupferlegierungen. Aus Kupfer gefertigte Kühlplatten weisen im Inneren beispielsweise durch mechanisches Tiefbohren erzeugte Kühlmittelkanäle auf, die im wesentlichen parallel zur Ofenwand verlaufen.In metallurgical furnaces, the furnace walls are removed in some furnace zones water-cooled cooling plates built up until a few years ago Cast iron or steel existed. These materials are relatively low Thermal conductivity. Much better thermal conductivity than gray cast iron or steel have copper or copper alloys. Cooling plates made of copper show in Inside, for example, coolant channels generated by mechanical deep drilling which run essentially parallel to the furnace wall.

Die hohe thermische Beanspruchung der dem Ofeninnenraum zugewandten Kühlplattenseite führt dazu, daß sich die Kühlplatten in ihren mechanischen Eigenschaften verändern.The high thermal stress on the furnace interior Cooling plate side leads to the fact that the cooling plates in their mechanical Change properties.

Folgende Eigenschaftsänderungen treten hierbei auf:

  • lokal verringerte Härte,
  • lokal veränderte Korngröße oder Gefügestruktur,
  • makroskopisch sichtbare Formänderung durch Kriechvorgänge im Material, die durch die unsymmetrische thermische Ausdehnung verursacht wird.
The following property changes occur:
  • locally reduced hardness,
  • locally changed grain size or structure,
  • Macroscopically visible change in shape due to creeping processes in the material, which is caused by the asymmetrical thermal expansion.

Aufgrund der Ofenbetriebsweise ergibt sich, daß die thermische Beanspruchung der Kühlplatten in der Regel zeitlich nicht konstant ist. Diese wechselnde thermische Beanspruchung führt zu zeitlich wechselnden Temperaturprofilen innerhalb der Kühlplattenwand und entsprechend zu wechselnden Verläufen der inneren Spannungen im Material der Kühlplatten.Due to the furnace operation, it follows that the thermal stress on the Cooling plates are usually not constant over time. This changing thermal Stress leads to changing temperature profiles within the Cooling plate wall and changes in the course of the inner Tensions in the material of the cooling plates.

Diese wechselnden Beanspruchungen sind mit der Gefahr einer Werkstoffermüdung (z. B. Materialversagen durch Rißbildung) verbunden, was den Ofenbetrieb gefährden kann. Diese Gefahr wird noch dadurch verschärft, daß neben der wechselnden thermischen Beanspruchung auch die oben beschriebenen Änderungen der Materialeigenschaften ablaufen.These changing loads are associated with the risk of material fatigue (e.g. material failure due to cracking) connected to the furnace operation can endanger. This danger is exacerbated by the fact that in addition to the changing thermal stress also those described above Changes in material properties are taking place.

Es zählt um Stand der Technik diese Nachteile dadurch zu beseitigen, daß durch konstruktive Änderungen, z.B. an den Kühlkanälen, die Kühlung der Ofenwand verbessert wird. Hierdurch wird das Innere des Ofens im Wandbereich stark abgekühlt und die thermische Belastung nimmt dabei ab.It is part of the prior art to eliminate these disadvantages by constructive changes, e.g. on the cooling channels, cooling the furnace wall is improved. This makes the inside of the stove strong in the wall area cooled and the thermal load decreases.

Der Erfindung liegt ausgehend vom Stand der Technik die Aufgabe zugrunde, eine Kühlplatte bereitzustellen, die über alle Betriebssituationen hinweg eine deutlich verbesserte Formbeständigkeit aufweist, so daß längere Standzeiten möglich werden.Starting from the prior art, the invention is based on the object of a Provide cooling plate that is clear across all operating situations has improved dimensional stability, so that longer service life is possible become.

Zur Lösung der Aufgabe schlägt die Erfindung vor, die dem Inneren des Ofens zugewandte Seite der Kühlplatte mit mindestens einer Beschichtung zu versehen, die eine geringere Wärmeleitfähigkeit aufweist als das Kupfergrundmaterial.To achieve the object, the invention proposes the inside of the furnace to provide the facing side of the cooling plate with at least one coating, which has a lower thermal conductivity than the copper base material.

Auf diese Weise wird die Kühlwirkung der Kühlplatte auf das Ofeninnere verringert und es ergeben sich überraschenderweise Vorteile im Hinblick auf den Ofenbetrieb insgesamt. In this way, the cooling effect of the cooling plate on the inside of the furnace is reduced and surprisingly there are advantages in terms of furnace operation all in all.

Kern der Erfindung ist also die unerwünschten Veränderungen der Kühlplatten dadurch zu verringern, daß die thermische Belastung der Kühlplatten vermindert wird. Dazu werden die Kühlplatten mit einer geeigneten Beschichtung auf der Plattenseite versehen, die dem Ofeninnenraum zugewandt ist.The core of the invention is therefore the undesirable changes in the cooling plates to reduce by reducing the thermal load on the cooling plates becomes. For this purpose, the cooling plates are coated with a suitable coating on the Provide plate side facing the furnace interior.

Diese Beschichtung kann aus einer oder mehreren Schichten aufgebaut sein, wobei die einzelnen Schichten auch unterschiedliche Zusammensetzungen besitzen können.This coating can be constructed from one or more layers, wherein the individual layers also have different compositions can.

Die Beschichtung bzw. die Beschichtungen wird bzw. werden vorzugsweise durch ein thermisches Spritzverfahren, wie z. B. Plasma- oder Flammspritzen, aufgebracht.The coating or the coatings is or are preferably by a thermal spray process, such as. B. plasma or flame spraying applied.

Dabei ist es vorteilhaft, wenn mindestens eine dieser Schichten die Funktion einer Isolier- oder Wärmedämmschicht erfüllt, die eine geringere Wärmeleitfähigkeit als das Kupfergrundmetall besitzt.It is advantageous if at least one of these layers functions as a Insulating or thermal insulation layer that has a lower thermal conductivity than has the copper base metal.

Erfindungsgemäß soll die Wärmeleitfähigkeit der Beschichtung weniger als 320 W/(m • K) betragen. Für den Fall, daß eine besonders starke Wärmedämmwirkung erwünscht ist, kann die Wärmeleitfähigkeit auch weniger als 10 W/(m • K) betragen.According to the invention, the thermal conductivity of the coating should be less than 320 W / (m • K). In the event that a particularly strong thermal insulation effect is desirable, the thermal conductivity can be less than 10 W / (m • K).

Die Wärmedämmschicht kann vorzugsweise entweder metallisch sein oder aus einer Metall-Nichtmetall-Verbindung bestehen. Andererseits kann die Wärmedämmschicht auch aus einer Mischung oder Kombination aus einem Metall und einer Metall-Nichteisenmetall-Verbindung zusammengesetzt sein.The thermal barrier coating can preferably either be metallic or from a Metal-non-metal connection exist. On the other hand, the thermal barrier coating also from a mixture or combination of a metal and a metal-non-ferrous metal compound be composed.

Zum Beispiel kann die Wärmedämmschicht aus einem Material auf Zirkonium-Oxid-Basis aufgebaut sein, wobei dieses zweckmäßigerweise Zusätze von Yttrium-Oxid enthält. For example, the thermal barrier coating can be made from a material based on zirconium oxide be built up, this expediently additions of yttrium oxide contains.

Als Grundschicht kann eine Beschichtung mit anderer Zusammensetzung verwendet werden, die die Haftung der eigentlichen Dämmschicht oder des Dämmschichtsystems auf dem Grundkörper verbessert, z.B. eine MCrAIY-Beschichtung, wobei "M" ein Metall, z.B. Fe, Ni oder Co oder eine Kombinationen dieser Elemente bedeutet.A coating with a different composition can be used as the base layer be the liability of the actual insulation layer or the Insulation layer system on the base body improved, e.g. an MCrAIY coating, where "M" is a metal, e.g. Fe, Ni or Co or a combination of these elements means.

Zur besseren Haftung der Beschichtung auf dem Grundmetall ist es darüber hinaus vorteilhaft, das Grundmetall vor der Beschichtung aufzurauhen.It is also for better adhesion of the coating to the base metal advantageous to roughen the base metal before coating.

Die Dicke der gesamten Beschichtung liegt vorteilhafterweise im Bereich von 0,1 - 1,5 mm.The thickness of the entire coating is advantageously in the range of 0.1- 1.5 mm.

Besondere Vorteile können sich je nach Anwendungsfall auch dadurch ergeben, daß unterschiedliche Anteile der ofenseitigen Kühlplattenoberfläche mit der Beschichtung bedeckt sind oder daß unterschiedliche Schichtdicken an unterschiedlichen Plattenbereichen verwendet werden:Depending on the application, special advantages can also result from the fact that different proportions of the cooling plate surface on the furnace side with the coating are covered or that different layer thicknesses at different Plate areas are used:

Wegen der vielfältigen Wechselwirkungen (Haftung, Abschmelzverhalten der Ofenschlacken, Abplatzverhalten der Ofenschlacke oder Beschichtung) der Beschichtungsmaterialien mit den unterschiedlichen Ofenschlacken, die bei unterschiedlichen Öfen innerhalb des Ofenraumes an die Kühlplattenoberfläche spritzt, kann es ferner vorteilhaft sein, daß bei einer profilierten Kühlplattenoberfläche insbesondere die weiter in den Ofenraum vorragenden Plattenbereiche eine dickere Beschichtung aufweisen als die weniger weit vorragenden Flanken der Nuten.Because of the diverse interactions (liability, melting behavior of the Furnace slag, flaking behavior of the furnace slag or coating) Coating materials with the different furnace slags, which at different furnaces within the furnace space to the cooling plate surface splashes, it may also be advantageous that with a profiled cooling plate surface in particular the thicker plate areas protruding further into the furnace chamber Have coating than the less protruding flanks of the grooves.

Claims (6)

Kühlplatte als Bestandteil der Ofenwand eines metallurgischen Ofens, insbesondere eines Schmelz- oder Schachtofens, welche aus Kupfer oder einer Kupferlegierung besteht und von Kühlmittelkanälen durchzogen ist, wobei die dem Inneren des Ofens zugewandte Seite der Kühlplatte mit mindestens einer Beschichtung versehen ist, die eine geringere Wärmeleitfähigkeit aufweist als das Kupfergrundmaterial.Cooling plate as part of the furnace wall of a metallurgical furnace, in particular a melting or shaft furnace made of copper or consists of a copper alloy and is penetrated by coolant channels, the side of the cooling plate facing the interior of the furnace at least one coating is provided, which has a lower Has thermal conductivity than the copper base material. Kühlplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Beschichtung eine Wärmeleitfähigkeit aufweist, die geringer als 320 W/(m • K), vorzugsweise geringer als 10 W/(m • K) ist.Cooling plate according to claim 1, characterized in that the coating has a thermal conductivity which is less than 320 W / (m • K), preferably less than 10 W / (m • K). Kühlplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Dicke der Beschichtung im Bereich von 0,1 bis 1,5 mm liegt.Cooling plate according to claim 1 or 2, characterized in that the thickness of the coating is in the range of 0.1 to 1.5 mm. Kühlplatte nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die jeweilige Beschichtung mittels eines thermischen Spritzverfahrens aufgebracht ist.Cooling plate according to one of claims 1 to 3, characterized in that the respective coating is applied by means of a thermal spraying process. Kühlplatte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Beschichtung aus einem Material auf Zirkonium-Oxid-Basis besteht, das vorzugsweise Yttrium-Oxid als Zusatz enthält. Cooling plate according to one of claims 1 to 4, characterized in that the coating consists of a material based on zirconium oxide, which preferably contains yttrium oxide as an additive. Kühlplatte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zwischen dem Kupfergrundmaterial und der Beschichtung wenigstens eine Zwischenschicht zur Haftverbesserung angeordnet ist, die im wesentlichen aus MCrAIY besteht, wobei M ein Metall bedeutet, das vorzugsweise aus mindestens einem Element aus der Gruppe Fe, Ni oder Co ausgewählt ist.Cooling plate according to one of claims 1 to 5, characterized in that between the copper base material and the coating at least one intermediate layer for improving the adhesion is arranged, which essentially consists of MCrAIY, where M is a metal which preferably consists of at least one element from the group Fe , Ni or Co is selected.
EP01106742A 2000-03-24 2001-03-17 Cooling plate Withdrawn EP1136573A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10014359A DE10014359A1 (en) 2000-03-24 2000-03-24 Copper or copper alloy cooling plate used as a component of a wall of a metallurgical furnace has coolant channels and a coating on the side facing the inside of the oven
DE10014359 2000-03-24

Publications (1)

Publication Number Publication Date
EP1136573A1 true EP1136573A1 (en) 2001-09-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01106742A Withdrawn EP1136573A1 (en) 2000-03-24 2001-03-17 Cooling plate

Country Status (5)

Country Link
EP (1) EP1136573A1 (en)
JP (1) JP2001304761A (en)
KR (1) KR20010089876A (en)
CN (1) CN1323905A (en)
DE (1) DE10014359A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042105A1 (en) * 2002-11-07 2004-05-21 Outokumpu Oyj Method for preparing a coating for metallurgical furnace cooling element
WO2004057256A1 (en) * 2002-12-20 2004-07-08 Hundt & Weber Gmbh Cooling element, particularly for furnaces, and method for producing a cooling element
EP1443119A1 (en) * 2003-01-29 2004-08-04 VAI Industries (UK) Ltd. Cooling stave for shaft furnaces
EP2069701A1 (en) * 2006-09-27 2009-06-17 Outotec OYJ Method for coating a cooling element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103547054A (en) * 2013-10-21 2014-01-29 芜湖鼎恒材料技术有限公司 Connecting pipe for cooling of plasma treatment equipment

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Publication number Priority date Publication date Assignee Title
GB862791A (en) * 1958-06-11 1961-03-15 United States Steel Corp Ceramic coated tuyeres and method of making the same
GB2064079A (en) * 1979-11-30 1981-06-10 British Steel Corp Surface coated copper furnace components
JPS57143409A (en) * 1981-03-02 1982-09-04 Nippon Kokan Kk <Nkk> Heat resistant cooling box
JPS5943804A (en) * 1982-09-03 1984-03-12 Mishima Kosan Co Ltd Cooling plate for body of blast furnace
US4619441A (en) * 1983-04-01 1986-10-28 Hoogovens Groep B.V. Shaft furnace having a metal shell, a refractory lining and cooling bodies projecting through the shell into the lining
JPH08136156A (en) * 1994-11-02 1996-05-31 Kanmeta Eng Kk Furnace wall cooling pipe for iron making apparatus and method for making the same
US5707230A (en) * 1994-06-10 1998-01-13 Thermoselect A.G. Coolable lining for a high-temperature gasification reactor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB862791A (en) * 1958-06-11 1961-03-15 United States Steel Corp Ceramic coated tuyeres and method of making the same
GB2064079A (en) * 1979-11-30 1981-06-10 British Steel Corp Surface coated copper furnace components
JPS57143409A (en) * 1981-03-02 1982-09-04 Nippon Kokan Kk <Nkk> Heat resistant cooling box
JPS5943804A (en) * 1982-09-03 1984-03-12 Mishima Kosan Co Ltd Cooling plate for body of blast furnace
US4619441A (en) * 1983-04-01 1986-10-28 Hoogovens Groep B.V. Shaft furnace having a metal shell, a refractory lining and cooling bodies projecting through the shell into the lining
US5707230A (en) * 1994-06-10 1998-01-13 Thermoselect A.G. Coolable lining for a high-temperature gasification reactor
JPH08136156A (en) * 1994-11-02 1996-05-31 Kanmeta Eng Kk Furnace wall cooling pipe for iron making apparatus and method for making the same

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PATENT ABSTRACTS OF JAPAN vol. 006, no. 244 (C - 138) 2 December 1982 (1982-12-02) *
PATENT ABSTRACTS OF JAPAN vol. 008, no. 134 (C - 230) 21 June 1984 (1984-06-21) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09 30 September 1996 (1996-09-30) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042105A1 (en) * 2002-11-07 2004-05-21 Outokumpu Oyj Method for preparing a coating for metallurgical furnace cooling element
WO2004057256A1 (en) * 2002-12-20 2004-07-08 Hundt & Weber Gmbh Cooling element, particularly for furnaces, and method for producing a cooling element
US8080116B2 (en) 2002-12-20 2011-12-20 Hundt & Weber Gmbh Method for producing a cooling element
EP1443119A1 (en) * 2003-01-29 2004-08-04 VAI Industries (UK) Ltd. Cooling stave for shaft furnaces
EP2069701A1 (en) * 2006-09-27 2009-06-17 Outotec OYJ Method for coating a cooling element
EP2069701A4 (en) * 2006-09-27 2013-09-04 Outotec Oyj Method for coating a cooling element

Also Published As

Publication number Publication date
KR20010089876A (en) 2001-10-12
DE10014359A1 (en) 2001-09-27
JP2001304761A (en) 2001-10-31
CN1323905A (en) 2001-11-28

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