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WO2009010266A2 - Four électrique de réduction modulaire - Google Patents

Four électrique de réduction modulaire Download PDF

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Publication number
WO2009010266A2
WO2009010266A2 PCT/EP2008/005753 EP2008005753W WO2009010266A2 WO 2009010266 A2 WO2009010266 A2 WO 2009010266A2 EP 2008005753 W EP2008005753 W EP 2008005753W WO 2009010266 A2 WO2009010266 A2 WO 2009010266A2
Authority
WO
WIPO (PCT)
Prior art keywords
furnace
vessel
reduction furnace
electrodes
electric reduction
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.)
Ceased
Application number
PCT/EP2008/005753
Other languages
German (de)
English (en)
Other versions
WO2009010266A3 (fr
Inventor
Roland König
Karl-Heinz Kummer
Jürgen Kunze
Detlef Strieder
Hartmut Schmieden
Rolf Degel
Axel Weyer
Patrick Henke
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 Siemag AG
SMS Demag 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 Siemag AG, SMS Demag AG filed Critical SMS Siemag AG
Priority to EP08801485.7A priority Critical patent/EP2179630B1/fr
Publication of WO2009010266A2 publication Critical patent/WO2009010266A2/fr
Publication of WO2009010266A3 publication Critical patent/WO2009010266A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/08—Apparatus
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/22—Remelting metals with heating by wave energy or particle radiation
    • C22B9/226—Remelting metals with heating by wave energy or particle radiation by electric discharge, e.g. plasma
    • 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; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D2001/0046—Means to facilitate repair or replacement or prevent quick wearing
    • F27D2001/0053—Furnace constructed in modules

Definitions

  • NE non-ferrous metals
  • the stated object is achieved by the characterizing features of claim 1, characterized in that the electric reduction furnace is completely dismantled from any interchangeable modules is formed, for performance above o.5 of 5 MVA as a performance limit, a total uneconomical design applies, depending on Execution and use of the furnace u. a. for example, to support strain stresses, and that the dimensions and structure of the electric reduction furnace with respect to the furnace vessel, the side walls, the floor, the ceiling and the arrangement of the electrodes by using individual and / or several modules with different dimensions and materials individually variable designable and, for example, for industrial ovens required for different processes different hearth heights are changed in a simple manner.
  • the modular design with quickly exchangeable segments, whereby single or multiple modules can also be welded constructions makes it easier to adapt to different experimental objectives from, for example, the field of non-ferrous metals and slag cleaning, the production of steel due to their suitability for as many electrical modes of operation as experimental furnace and ferroalloys and the recovery of metallurgical material. Also for the testing of refractory and sidewall cooling concepts (channel cooling, trickle cooling, various copper cooling concepts), this multifunctional electric reduction furnace according to the invention is ideally suited.
  • the modular design facilitates by the transfer of individual elements after their probation in the industrial scale, the project planning and custom design just smaller ovens, which then according to the invention can also be put together from a "kit".
  • such smaller ovens can then be used, for example, at a later process or product change in a simple and fast way to adapt to the changed conditions.
  • the sidewalls of the furnace vessel are subdivided into vascular rings of possibly different heights for rapid height and lining adaptation, which in turn are divided into vascular ring segments, for example halves or thirds.
  • These vessel ring segments sometimes have different tasks and, accordingly, sometimes different heights.
  • a metal tapping segment and a slag tapping segment may overlap, while the segment on the opposite side is as high as the metal tapping segment and the slag tapping segment together.
  • individual standardized, for example, curved, trained vessel ring segments which are linked together in any desired number, it is also possible, for example, to form pseudo-round and / or angular vessel rings with different-sized diameters.
  • the electric reduction furnace according to the invention thus goes away from the welded steel construction and also from the idea that an oven must necessarily be round on the outside in order to absorb expansion forces. These can also be chained curved elements.
  • the modular design also includes the individually possible different electrical modes of operation.
  • the bottom of the elec- reduction furnace can be made of an electrically conductive material to perform experiments with a bottom electrode.
  • an AC and DC connection by means of a corresponding geometry of the electrode feedthrough and an intelligent connection of the electrical connection, an AC and DC
  • Show it: 1 shows an electric reduction furnace with missing side wall segment in a perspective side view obliquely from above,
  • FIG. 3 shows an electro-reduction furnace in an exploded perspective view
  • FIG. 4 shows a pseudo-circular vessel ring formed from standardized vessel ring segments
  • Fig. 7 is an electrical circuit diagram.
  • an electric reduction furnace 1 is shown in a perspective side view. It consists essentially of a furnace vessel 2 with a side wall 3, a bottom 4 and a ceiling 5. By existing in the ceiling 5 openings are held from above into the furnace vessel 2 on electrode arms 8 held electrodes 6, wherein for vertical displacement of the E Electrodes 6, the electrode arms 8 are fixed to guide frame 9 movable. In this case, the electrode arms 8 additionally serve to hold the supply of electrical energy required for operation by means of a high-current web 10.
  • FIG Side wall segments 30 (see Fig. 2), which form the side wall 3, and a correspondingly large portion of the bottom 4 away.
  • a melting channel 23 is arranged on one of the remaining side wall segments 30 (see FIG.
  • FIG. 2 the two side wall segments 30 (in the figure on the left with the melting channel 23 and on the right with the associated bottom section 4) of FIG. 1 are shown individually in a perspective side view.
  • the sidewall segments 30 are made of individual superimposed vascular ring segments.
  • Menten 21 constructed, one of which is provided as a metal tapping segment or Schlackenabstichsegment with a melting channel 23.
  • FIG. 3 To further illustrate the inventive modular design of the electric reduction furnace 1 this is shown in Figure 3 in a perspective exploded view. Individual components of the electric reduction furnace 1 can be seen more clearly in this way with respect to the figure 1.
  • the bottom 4 is formed of two superimposed layers 41, 42, wherein for use of the bottom 4 as a bottom electrode 7, the top layer 41 can be made for example of an electrically conductive material.
  • FIG. 4 shows, in a plan view, a pseudo-circular vessel ring 20 which, in this exemplary embodiment, is formed from five standardized curved vessel ring segments 22, which are detachably interlinked with one another.
  • the number of five vascular ring segments 22 used here can be changed as desired, whereby three vascular ring segments 22 interlinked with one another apply as a sensible lower limit, which then result in a 3-cornered furnace vessel, while a larger number more closely approximates the round shape.
  • One possible embodiment of such a chain 24 is shown in FIG. 5, with each vessel ring segment 22 being hooked into the adjacent vessel ring segment 22 from above.
  • FIG. 1 A possible arrangement of the electrodes 6 with their electrode arms 8 and the electrical connections 11 is shown in FIG. From this representation, the freely adjustable within the furnace vessel 2 (within a correspondingly formed opening in the furnace lid, which may be preferably designed in a y-shape) of the electrodes 6 can be seen, which is required to realize different interconnections can.
  • Switches S1 S2 S3 S4 S5 Switch positions: DC operation with three electrodes and bottom electrode

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

Les fours électriques de réduction, qui peuvent être utilisés dans des processus à ferro-alliages et des processus à métaux non ferreux à des fins expérimentales et sous une forme simplifiée comme fours à arc submergé industriels, requièrent comme les fours de plus grande taille une ingénierie complète, le coût des travaux d'ingénierie n'étant pas proportionnel au poids étant donné qu'il ne diminue pas avec la taille du four, mais s'apparente dans une large mesure à un 'coût fixe'. Par ailleurs, les modifications apportées aux fours existants, de grande ou de petite taille, ont un coût élevé. Les fours déjà construits ne peuvent être que difficilement adaptés ou modifiés sur le plan mécanique. L'objectif de l'invention est de concevoir un four de réduction flexible de taille réduite permettant de fournir des fours de réduction qui présentent un faible coût de conception et s'adaptent néanmoins spécifiquement à des processus pour le domaine expérimental et sous forme simplifiée pour une utilisation industrielle correspondante. À cet effet, le four électrique de réduction (1) selon l'invention est conçu de manière entièrement démontable à partir de modules interchangeables sans structure métallique soudée et les dimensions et la structure de ce four électrique de réduction (1) peuvent être modifiées individuellement en ce qui concerne la carcasse du four (2), les parois latérales (3), le fond (4), le plafond (5) et la disposition des électrodes (6) au moyen de modules individuels et/ou multiples de dimensions différentes et de matériaux différents.
PCT/EP2008/005753 2007-07-18 2008-07-15 Four électrique de réduction modulaire Ceased WO2009010266A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08801485.7A EP2179630B1 (fr) 2007-07-18 2008-07-15 Four électrique de réduction modulaire

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007033760 2007-07-18
DE102007033760.6 2007-07-18
DE102008017010A DE102008017010A1 (de) 2007-07-18 2008-04-03 Modularer Elektro-Reduktionsofen
DE102008017010.0 2008-04-03

Publications (2)

Publication Number Publication Date
WO2009010266A2 true WO2009010266A2 (fr) 2009-01-22
WO2009010266A3 WO2009010266A3 (fr) 2009-04-02

Family

ID=40157516

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/005753 Ceased WO2009010266A2 (fr) 2007-07-18 2008-07-15 Four électrique de réduction modulaire

Country Status (4)

Country Link
EP (1) EP2179630B1 (fr)
DE (1) DE102008017010A1 (fr)
WO (1) WO2009010266A2 (fr)
ZA (1) ZA201000288B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012032421A1 (fr) * 2010-09-09 2012-03-15 Hendrik Willem Greyling Fours de type balai-arc et procédé de traitement de minerais
EP2436789A1 (fr) 2010-10-01 2012-04-04 SMS Siemag AG Procédé et dispositif de préparation de résidus d'installations industrielles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118500U (ja) * 1984-07-05 1986-02-03 石川島播磨重工業株式会社 可変容量ア−ク炉
DE10141133A1 (de) * 2001-08-22 2003-03-06 Sms Demag Ag Vorrichtung zum Einschmelzen von Metall und Verfahen zum Betreiben der Vorrichtung
DE10149367B4 (de) * 2001-10-06 2007-08-09 Sms Demag Ag Verfahren und Wechseleinrichtung zum Aus- oder Einbauen von Baugruppen eines Elektrolichtbogenofens
AU2006279270A1 (en) * 2005-08-11 2007-02-15 Advanced Intellectual Holdings Pty Ltd Smelting furnace
DE102006041421A1 (de) * 2006-09-04 2008-03-06 Fuchs Technology Ag Schmelzofen, insbesondere Lichtbogenofen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012032421A1 (fr) * 2010-09-09 2012-03-15 Hendrik Willem Greyling Fours de type balai-arc et procédé de traitement de minerais
EP2436789A1 (fr) 2010-10-01 2012-04-04 SMS Siemag AG Procédé et dispositif de préparation de résidus d'installations industrielles
DE102010064099A1 (de) 2010-10-01 2012-04-05 Sms Siemag Ag Verfahren und Vorrichtung zum Aufbereiten von Reststoffen aus Industrie-Anlagen

Also Published As

Publication number Publication date
EP2179630B1 (fr) 2014-09-10
ZA201000288B (en) 2010-09-29
WO2009010266A3 (fr) 2009-04-02
EP2179630A2 (fr) 2010-04-28
DE102008017010A1 (de) 2009-01-29

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