EP0217094A1 - Procédé et dispositif pour maintenir la température d'un bain dans une poche - Google Patents

Procédé et dispositif pour maintenir la température d'un bain dans une poche Download PDF

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Publication number
EP0217094A1
EP0217094A1 EP86111410A EP86111410A EP0217094A1 EP 0217094 A1 EP0217094 A1 EP 0217094A1 EP 86111410 A EP86111410 A EP 86111410A EP 86111410 A EP86111410 A EP 86111410A EP 0217094 A1 EP0217094 A1 EP 0217094A1
Authority
EP
European Patent Office
Prior art keywords
melt
pan
temperature
fuel
ladle
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Withdrawn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
EP86111410A
Other languages
German (de)
English (en)
Inventor
Guntram Dipl.-Ing. Urban
Eckhard Dipl.-Ing. Quade
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP0217094A1 publication Critical patent/EP0217094A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
    • B22D41/01—Heating means
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle

Definitions

  • the invention relates to a method and a device for keeping a melt warm in a pan, heat being supplied to the melt.
  • Warming furnaces or pans are used to keep melts warm and to heat them up. Holding furnaces are stationary furnaces which, despite their relatively low output, require high investment costs. In a holding furnace, only heat is added to a melt. The melt is not rinsed. Pans originally only served as transport containers in which the melt was transported from a melting unit, for example to a casting plant. Meanwhile, be in a pan but also post-treatments and A nalysenkorrekturen the melt carried out. A pan also serves as a buffer container, so that the tapping sequence of the melting unit does not depend on the readiness of the casting system for pouring. A pan filled with a melt is usually closed with a lid, the melt being heated. The melt is heated via graphite electrodes, which are connected to a transformer via current leads which are arranged in the lid of the pan above the surface of the weld pool.
  • pan oven As with holding ovens, the investment costs for a pan with a heating device (pan oven) are high. Keeping a melt warm and heating it up in a ladle furnace is therefore in many cases not profitable due to the high investment costs and / or insufficient utilization.
  • the invention has for its object to provide a method of the type mentioned, with which a melt in a ladle furnace can be kept warm in a simple and economical manner.
  • This object is achieved in that the heat is released during the combustion of a fuel is supplied to the melt.
  • a fuel with an oxygen-containing gas is burned inside the ladle furnace.
  • the heat released is transferred directly to the melt.
  • the investment costs for a burner for burning a fuel are relatively low.
  • the method according to the invention does not cause any significant burn-off of alloy elements. It is particularly advantageous that the process according to the invention can be used to treat melts with different melt weights in the same plant.
  • adding alloying agents such as carbon and silicon is possible without problems.
  • the method according to the invention thus fully fulfills the function of a conventional pan. It succeeds the Not only to keep the temperature of the melt at a constant temperature level, but also to raise the temperature of the melt.
  • melt is flushed with a gas, in particular an inert gas, at least during the supply of heat.
  • a gas in particular an inert gas
  • the fuel is burned with oxygen-enriched air or with oxygen.
  • An apparatus for performing the method consists essentially of a pan and a lid closing the pan.
  • a burner oriented in the interior of the pan is arranged in the lid of the pan.
  • the lid construction of a device according to the invention is much simpler than that of a ladle oven with electrical heating.
  • a pan oven is shown schematically in the sketch.
  • the pan oven consists essentially of a pan 1 and a lid 5 closing the pan 1.
  • Pan 1 and lid 5 each consist of a hollow jacket 4 and are bricked or rammed with refractory material 3.
  • a feed gas 7 is fed into the melt 2.
  • a recess with a holder 9 for a burner 8 is provided in the cover 5.
  • Burner 8 is supplied with fuel via a line 10 and with an oxygen-containing gas such as oxygen-enriched air or oxygen via a line 11.
  • Burner 8 is directed into the interior of the pan 1 and onto the surface of the melt 2.
  • a melt of 5.5 t could be heated in a 6.5 ton pan with a fuel / oxygen burner from 1300 ° C to 1400 ° C and kept at this temperature level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP86111410A 1985-08-22 1986-08-18 Procédé et dispositif pour maintenir la température d'un bain dans une poche Withdrawn EP0217094A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3530043 1985-08-22
DE19853530043 DE3530043A1 (de) 1985-08-22 1985-08-22 Verfahren und vorrichtung zum warmhalten einer schmelze in einer pfanne

Publications (1)

Publication Number Publication Date
EP0217094A1 true EP0217094A1 (fr) 1987-04-08

Family

ID=6279112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111410A Withdrawn EP0217094A1 (fr) 1985-08-22 1986-08-18 Procédé et dispositif pour maintenir la température d'un bain dans une poche

Country Status (2)

Country Link
EP (1) EP0217094A1 (fr)
DE (1) DE3530043A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664516A1 (fr) * 1990-07-13 1992-01-17 Air Liquide Four de maintien en temperature et de traitement metallurgique.
EP1625904A1 (fr) * 2004-08-13 2006-02-15 Vaw-Imco Guss und Recycling GmbH Dispositif pour chauffer ou tenir chaud des liquides
WO2008080379A1 (fr) 2007-01-04 2008-07-10 Sms Siemag Aktiengesellschaft Procédé et installation de production d'acier
DE102016003728A1 (de) 2016-03-24 2017-09-28 Messer Austria Gmbh Verfahren und Vorrichtung zum Warmhalten flüssiger Metalle
CN109175337A (zh) * 2018-06-26 2019-01-11 胡沛 一种电力电缆生产用原材料熔融装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504415B4 (de) * 1994-06-24 2004-12-02 Denso Corp., Kariya Warmhalteofen für eine Metallschmelze und Verfahren zur Aufnahme von Metallschmelze in einem derartigen Ofen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525506A (en) * 1968-09-05 1970-08-25 Jones & Laughlin Steel Corp Tundish-tundish roof assembly
DE3245098A1 (de) * 1982-12-07 1984-06-07 Klöckner-Werke AG, 4100 Duisburg Verfahren zum herstellen von hochwertigen staehlen, die im konverter vorgeschmolzen werden

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525506A (en) * 1968-09-05 1970-08-25 Jones & Laughlin Steel Corp Tundish-tundish roof assembly
DE3245098A1 (de) * 1982-12-07 1984-06-07 Klöckner-Werke AG, 4100 Duisburg Verfahren zum herstellen von hochwertigen staehlen, die im konverter vorgeschmolzen werden

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RESEARCH AND DEVELOPMENT IN JAPAN AWARDED THE OKOCHI MEMORIAL PRIZE, 1982, pages 22-28, Okochi Memorial Foundation, Tokyo, JP; N. URUSHIYAMA et al.: "Development of a reduction refining process for molten steel in a ladle furnace - The LF process" *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664516A1 (fr) * 1990-07-13 1992-01-17 Air Liquide Four de maintien en temperature et de traitement metallurgique.
EP0468832A1 (fr) * 1990-07-13 1992-01-29 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Four de maintien en température et de traitement métallurgique
US5160477A (en) * 1990-07-13 1992-11-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Temperature maintenance and metallurgical treatment furnace
EP1625904A1 (fr) * 2004-08-13 2006-02-15 Vaw-Imco Guss und Recycling GmbH Dispositif pour chauffer ou tenir chaud des liquides
WO2008080379A1 (fr) 2007-01-04 2008-07-10 Sms Siemag Aktiengesellschaft Procédé et installation de production d'acier
CN101573457A (zh) * 2007-01-04 2009-11-04 Sms西马克股份公司 制钢的方法和设备
CN101573457B (zh) * 2007-01-04 2015-05-20 Sms西马克股份公司 制钢的方法和设备
DE102016003728A1 (de) 2016-03-24 2017-09-28 Messer Austria Gmbh Verfahren und Vorrichtung zum Warmhalten flüssiger Metalle
EP3228403A2 (fr) 2016-03-24 2017-10-11 Messer Austria GmbH Procédé et dispositif destinés à conserver au chaud des métaux liquides
EP3228403A3 (fr) * 2016-03-24 2017-11-15 Messer Austria GmbH Procédé et dispositif destinés à conserver au chaud des métaux liquides
CN109175337A (zh) * 2018-06-26 2019-01-11 胡沛 一种电力电缆生产用原材料熔融装置

Also Published As

Publication number Publication date
DE3530043A1 (de) 1987-02-26

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Inventor name: QUADE, ECKHARD, DIPL.-ING.

Inventor name: URBAN, GUNTRAM, DIPL.-ING.