EP2179630A2 - Modularer elektro-reduktionsofen - Google Patents
Modularer elektro-reduktionsofenInfo
- Publication number
- EP2179630A2 EP2179630A2 EP08801485A EP08801485A EP2179630A2 EP 2179630 A2 EP2179630 A2 EP 2179630A2 EP 08801485 A EP08801485 A EP 08801485A EP 08801485 A EP08801485 A EP 08801485A EP 2179630 A2 EP2179630 A2 EP 2179630A2
- Authority
- EP
- European Patent Office
- 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.)
- Granted
Links
- 238000013461 design Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 208000006906 Vascular Ring Diseases 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000010079 rubber tapping Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007033760 | 2007-07-18 | ||
| DE102008017010A DE102008017010A1 (de) | 2007-07-18 | 2008-04-03 | Modularer Elektro-Reduktionsofen |
| PCT/EP2008/005753 WO2009010266A2 (de) | 2007-07-18 | 2008-07-15 | Modularer elektro-reduktionsofen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2179630A2 true EP2179630A2 (de) | 2010-04-28 |
| EP2179630B1 EP2179630B1 (de) | 2014-09-10 |
Family
ID=40157516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08801485.7A Not-in-force EP2179630B1 (de) | 2007-07-18 | 2008-07-15 | Modularer elektro-reduktionsofen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2179630B1 (de) |
| DE (1) | DE102008017010A1 (de) |
| WO (1) | WO2009010266A2 (de) |
| ZA (1) | ZA201000288B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012032421A1 (en) * | 2010-09-09 | 2012-03-15 | Hendrik Willem Greyling | Brush-arc furnaces and a method of processing ores |
| DE102010064099A1 (de) | 2010-10-01 | 2012-04-05 | Sms Siemag Ag | Verfahren und Vorrichtung zum Aufbereiten von Reststoffen aus Industrie-Anlagen |
Family Cites Families (5)
| 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 |
-
2008
- 2008-04-03 DE DE102008017010A patent/DE102008017010A1/de not_active Withdrawn
- 2008-07-15 WO PCT/EP2008/005753 patent/WO2009010266A2/de not_active Ceased
- 2008-07-15 EP EP08801485.7A patent/EP2179630B1/de not_active Not-in-force
-
2010
- 2010-01-15 ZA ZA201000288A patent/ZA201000288B/xx unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009010266A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008017010A1 (de) | 2009-01-29 |
| ZA201000288B (en) | 2010-09-29 |
| EP2179630B1 (de) | 2014-09-10 |
| WO2009010266A3 (de) | 2009-04-02 |
| WO2009010266A2 (de) | 2009-01-22 |
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