EP2235461B1 - Vorrichtung und verfahren zur gewinnung von metallen oder metallverbindungen - Google Patents

Vorrichtung und verfahren zur gewinnung von metallen oder metallverbindungen Download PDF

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Publication number
EP2235461B1
EP2235461B1 EP08862095.0A EP08862095A EP2235461B1 EP 2235461 B1 EP2235461 B1 EP 2235461B1 EP 08862095 A EP08862095 A EP 08862095A EP 2235461 B1 EP2235461 B1 EP 2235461B1
Authority
EP
European Patent Office
Prior art keywords
housing
slag
metal
layer
electrode
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.)
Not-in-force
Application number
EP08862095.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2235461A1 (de
Inventor
Rolf Degel
Harmen Johannes Oterdoom
Jürgen Kunze
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 Group GmbH
Original Assignee
SMS Group GmbH
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Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP2235461A1 publication Critical patent/EP2235461A1/de
Application granted granted Critical
Publication of EP2235461B1 publication Critical patent/EP2235461B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5241—Manufacture of steel in electric furnaces in an inductively heated furnace
    • C21C5/5247—Manufacture of steel in electric furnaces in an inductively heated furnace processing a moving metal stream while exposed to an electromagnetic field, e.g. in an electromagnetic counter current channel
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • 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
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces

Definitions

  • the invention relates to an apparatus and a method for recovering metals or metal compounds, in particular from a solid containing the metal or the metal compound.
  • the invention therefore relates in particular to a device according to claim 1 and furthermore to a method according to claim 9.
  • metals or metal compounds coexist with solids, so it is technically complicated to separate the metal or metal compound from the solid for other purposes and processing. Therefore, the metals or metal compounds are separated from the solids by means of obtaining such metals or metal compounds.
  • Such devices and methods for recovering metals or metal compounds from a solid containing the metal or metal compound are known in the art.
  • WO 2006/131372 discloses a device in which a liquefied metal-containing slag is heated in an electric arc furnace, wherein the metal-containing slag is heated in a first AC or DC furnace and then the melt from the first furnace into a second furnace, which is designed as a DC electric furnace , is spent.
  • EP 0714 860 B1 and EP 1375628 A2 become known, in which a method for the treatment of solid residues from waste incineration plants is disclosed in which slag is melted in a plurality of heating chambers, wherein in a first heating chamber, the slag is oxidized, in a second heating chamber, the metal is reduced and in a third heating chamber the Metal is sedimented to then feed it into a previous heating chamber, where it is collected and from which it is removed.
  • the devices known in the prior art show a lack of efficiency, wherein the proportion of the recovered metal or the metal compound is still too low and the proportion of the remaining unrecovered metal or the metal compound is still much too high.
  • the storage of these slags or materials is associated with high costs, such as the storage of slags from the ferro-alloy industry or the non-ferrous industry, in which in the manufacture or handling of platinum, copper, nickel, lead, etc. typically large Obtain quantities of slags, which therefore leads to high costs.
  • the object is achieved with respect to the device with the features of claim 1.
  • the object is achieved with a device for obtaining metals or metal compounds, in particular from a material containing the metal or the metal compound, with a housing having a first inlet for the supply of the material and a a first outlet for exhaust gas leakage, further comprising in the housing a first electrode as an anode and a second electrode as a cathode for electrically heating the material provided in the housing, a tap for removing molten metal or metal compound and an overflow for the Slag.
  • a supply of slag is provided, by means of which slag can be supplied to the interior of the housing. It can thereby be achieved that, for example, metal-containing slag can be supplied to the device for depletion.
  • the first electrode advantageously projects from above into the housing and extends into a layer of the electrically conductive material.
  • the second electrode is arranged on the housing bottom or is integrated in the housing bottom.
  • a layer structure results in the housing which has a layer of electrically conductive material, a layer of slag and a layer of molten metal or metal compound.
  • an electrode or a heating rod is provided in the housing, by means of which a resistance heating of the material provided in the housing, the slag and / or the melt can be carried out.
  • an electrode or a heating rod is provided in the housing, by means of which heating of the material provided in the housing, the slag and / or the melt can be carried out in the arc operation.
  • a supply of reducing agent is provided in the housing.
  • At least one electromagnet or a coil of an electromagnet is provided in the housing, wherein the electromagnet or the coil is preferably provided at the level of the slag in order to achieve a movement or a stirring of the material in the vessel.
  • the material containing the metal or the metal compound is a solid, such as a bulk material.
  • the method relates to a method for obtaining metals or metal compounds, in particular from a material containing the metal or metal compound with a housing having a first inlet for the supply of the material and a first outlet for the escape of exhaust gas, further in the housing, a first electrode an anode and a second electrode as a cathode for electrically heating the material provided in the housing, a tapping for removing molten metal or metal compound and an overflow for the slag, wherein the material is introduced into the device and is melted there, in which electrical energy is introduced by resistance heating or arc operation.
  • a stirring of the melt and / or slag by means of one or more externally imprinted magnetic fields and, for example, a DC field.
  • the FIG. 1 1 schematically shows a representation of an exemplary embodiment of a device 1 according to the invention for obtaining metal or metal compounds, such as alloys, from solids bonded, mixed or containing them.
  • the device 1 has a housing 2, which is preferably formed well insulating heat, so that in the interior of the housing of the solid and / or the metal or the metal compound can be melted and the energy to be expended is not increased too much by heat losses , Therefore, the housing is also double-walled from an inner housing 3 and an outer housing 4 constructed.
  • a first connecting piece 5 is provided, which is designed in the manner of a supply channel or pipe.
  • connection piece such as inlet 5
  • the solid containing the metal for example as bulk material
  • a further connecting piece, such as outlet, 6 is provided, which is also designed in the manner of a disposal channel or pipe.
  • the port 6 is used for the disposal or the escape of exhaust gas from the device.
  • the device 1 has an optional supply 7 for slag, which is arranged laterally of the housing and, for example, as a groove or pipe, the wall of the housing 2 passes through.
  • the anode 8 projects rod-shaped through the upper housing wall into the interior of the housing 2, wherein for performing the anode through the housing a passage 10 is provided, which the anode 8 leads and holds in the housing 2.
  • the cathode 9 is embedded in the lower bottom of the housing 2 or arranged at the bottom of the housing. It is preferably flat.
  • the tapping 11 is provided, by means of which the molten metal or the molten metal compound 12, which collects at the bottom of the housing 2 can be removed.
  • the heavy metal or heavy metal compound 12 collects at the bottom of the housing 2.
  • the slag accumulates in a layer 13 at.
  • a layer 14 of the conductive bulk material of the solid Above the slag layer 13 is a layer 14 of the conductive bulk material of the solid.
  • an overflow 16 is provided for the slag 13, which ensures that the level of slag 13 is limited upwards and does not rise further upwards. As a result, the position of the layer 14 is substantially fixed, in which the anode protrudes.
  • an electromagnet 15 is arranged, which ensures that the slag 13 and the layer 12 of the metal or the metal compound is set in its respective plane in motion, such as in circular motion.
  • FIG. 2 shows an inventive embodiment of a device 20, in which in addition to the in FIG. 1 explained features further features are realized.
  • FIG. 2 are already in FIG. 1 features provided with the same reference numerals.
  • the device 20 of the FIG. 2 a supply means 21 for solid and / or liquid and / or gaseous reducing agents.
  • This supply means 21 is formed in FIG. 21 as a tube which protrudes into the housing 2 from outside the housing 2 and projects into the region of the slag 13, so that the reducing agent passed through the tube is introduced into the slag.
  • reducing agents in the housing interior such as coke, coal, charcoal, petroleum coke, calcium carbide and / or gases, which are also made of carbon or hydrogen, the targeted reaction in the housing can be controlled.
  • a plurality of magnetic field coils 15 which generate a magnetic field in the interior of the housing for stirring the material in the housing.
  • an electrode or heating element 22 for heating the media or slag for the resistance operation in the housing 2.
  • an electrode or heating element 23 for the heating of the media or slag for the arc operation in the housing. 2
  • FIGS. 1 and 2 show devices 30,40 according to the invention, the devices 1 and 20 of the FIGS. 1 and 2 correspond substantially, wherein the two devices 30, 40 differ in that no magnetic fields for moving and stirring the melt or slag are present. It can therefore be carried out in these devices, a pure DC operation with coke bed.
  • the devices 1, 20, 30, 40 according to the invention it is advantageously possible to carry out a process for obtaining metal or metal compounds from a metal or metal compound-containing solids, in which the solid is placed in an electric furnace and by means of the electric furnace, preferably by means of a DC electric furnace, is melted.
  • This is achieved in a DC electric furnace in that an entry of electrical energy takes place by an electric arc furnace or a resistance heating of the slag in the furnace.
  • the melt is preferably also stirred by means of one or more externally impressed magnetic fields and, for example, a DC field in the furnace, which is generated by an electrically conductive bulk material and the metal or metal compound phase at the furnace bottom.
  • the degree of extraction of metals or metal compounds of slags and rock phases can advantageously be increased, which arise, for example, in the production of non-ferrous metals and ferroalloys. It can also be used to treat contaminated old deposits. Overall, it is possible to carry out a arm melting of solids, so that the resulting slags are less stressful.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
EP08862095.0A 2007-12-18 2008-12-11 Vorrichtung und verfahren zur gewinnung von metallen oder metallverbindungen Not-in-force EP2235461B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007061025 2007-12-18
DE102008021886 2008-05-02
PCT/EP2008/010490 WO2009077114A1 (de) 2007-12-18 2008-12-11 Vorrichtung und verfahren zur gewinnung von metallen oder metallverbindungen

Publications (2)

Publication Number Publication Date
EP2235461A1 EP2235461A1 (de) 2010-10-06
EP2235461B1 true EP2235461B1 (de) 2017-05-31

Family

ID=40404857

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08862095.0A Not-in-force EP2235461B1 (de) 2007-12-18 2008-12-11 Vorrichtung und verfahren zur gewinnung von metallen oder metallverbindungen
EP08861906.9A Not-in-force EP2225520B1 (de) 2007-12-18 2008-12-17 Vorrichtung zur gewinnung von metallen oder metallverbindungen aus einem das metall oder die metallverbindung enthaltendem material

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08861906.9A Not-in-force EP2225520B1 (de) 2007-12-18 2008-12-17 Vorrichtung zur gewinnung von metallen oder metallverbindungen aus einem das metall oder die metallverbindung enthaltendem material

Country Status (9)

Country Link
EP (2) EP2235461B1 (zh)
CN (2) CN101903730B (zh)
BR (2) BRPI0820788B1 (zh)
CL (2) CL2008003748A1 (zh)
DE (1) DE102008058605A1 (zh)
PE (2) PE20091616A1 (zh)
RU (2) RU2455599C2 (zh)
WO (2) WO2009077114A1 (zh)
ZA (2) ZA201003734B (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679718A (zh) * 2011-03-15 2012-09-19 孙晓冰 一种新型转移弧等离子炉结构设计
DE102011090072A1 (de) * 2011-12-29 2013-07-04 Sms Siemag Ag Verfahren zur Gewinnung eines Metalls aus einer das Metall enthaltenden Schlacke sowie Vorrichtung zur Gewinnung des Metalls
DE102014015302A1 (de) 2014-10-13 2016-04-14 Sms Group Gmbh Vorrichtung und Verfahren zum Reinigen von Schlacken
RU2624880C2 (ru) * 2015-10-12 2017-07-07 Сергей Федорович Павлов Способ переработки окисленных никелевых руд
DE102016207798A1 (de) * 2015-11-19 2017-05-24 Sms Group Gmbh Absetzofen und Verfahren zu seinem Betrieb
CN106082342B (zh) * 2016-08-16 2017-12-08 浙江海鸿工业产品设计有限公司 三硫化钼生产用反应装置
CN107218800B (zh) * 2017-06-20 2019-07-19 青岛大学 一种直流电弧炉

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FR1422830A (fr) * 1963-09-24 1966-01-03 Union Carbide Corp Appareil et procédé de fusion avec porte-électrode
JPS495691B1 (zh) * 1965-03-23 1974-02-08
SE396531B (sv) * 1975-11-06 1977-09-19 Asea Ab Anordning vid likstromsmatade ljusbagsugnar
JPS53146202A (en) * 1977-05-26 1978-12-20 Kawasaki Heavy Ind Ltd Method and apparatus for melting and refining steel material
SU1130074A1 (ru) * 1983-09-29 1999-07-27 Всесоюзный научно-исследовательский горно-металлургический институт цветных металлов Печь для кислородной плавки полиметаллических материалов
SU1617284A1 (ru) * 1987-09-24 1990-12-30 И. X. Левин Электрическа печь дл переработки окисленных и сульфидных материалов
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DE4322448A1 (de) * 1993-07-06 1995-01-12 Abb Research Ltd Schmelzofen zur thermischen Behandlung von schwermetallhalitgen und/oder dioxinhaltigen Sonderabfällen
CH688325A5 (de) * 1994-11-25 1997-07-31 Holderbank Financ Glarus Verfahren zur Aufbereitung von festen Rueckstaenden aus Muellverbrennungsanlagen und Vorrichtung zur Drchfuehrung des Verfahrens.
CN1154411A (zh) * 1995-07-24 1997-07-16 亚瑞亚·勃朗勃威力有限公司 熔炼设备
AUPP554098A0 (en) * 1998-08-28 1998-09-17 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
EP1375628A3 (en) * 2000-01-21 2004-12-08 Integrated Environmental Technologies, Llc. Methods and apparatus for treating waste
JP2001279313A (ja) * 2000-03-30 2001-10-10 Midrex Internatl Bv 溶融金属鉄の製法
RU2207476C2 (ru) * 2001-05-14 2003-06-27 Коршунов Евгений Алексеевич Плавильный агрегат
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DE102006022779A1 (de) 2005-06-08 2006-12-21 Sms Demag Ag Verfahren und Vorrichtung zur Gewinnung eines Metalls aus einer das Metall enthaltenden Schlacke

Also Published As

Publication number Publication date
BRPI0821164A2 (pt) 2015-06-16
RU2455599C2 (ru) 2012-07-10
EP2235461A1 (de) 2010-10-06
CL2008003748A1 (es) 2009-05-15
BRPI0820788A8 (pt) 2016-10-11
RU2010129525A (ru) 2012-01-27
BRPI0820788B1 (pt) 2017-06-13
ZA201003734B (en) 2011-03-30
EP2225520B1 (de) 2017-07-12
WO2009076945A1 (de) 2009-06-25
CN101903730A (zh) 2010-12-01
CN101903730B (zh) 2013-12-25
BRPI0821164B1 (pt) 2018-01-02
RU2455600C2 (ru) 2012-07-10
CN101903729B (zh) 2013-07-17
CL2008003801A1 (es) 2009-10-16
RU2010129916A (ru) 2012-01-27
PE20091533A1 (es) 2009-10-03
PE20091616A1 (es) 2009-11-07
BRPI0820788A2 (pt) 2015-06-16
DE102008058605A1 (de) 2009-07-02
CN101903729A (zh) 2010-12-01
ZA201004163B (en) 2011-02-23
WO2009077114A1 (de) 2009-06-25
EP2225520A1 (de) 2010-09-08

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