EP2225520A1 - Device for extracting metals or metal compounds from a material containing the metal or the metal compound - Google Patents
Device for extracting metals or metal compounds from a material containing the metal or the metal compoundInfo
- Publication number
- EP2225520A1 EP2225520A1 EP08861906A EP08861906A EP2225520A1 EP 2225520 A1 EP2225520 A1 EP 2225520A1 EP 08861906 A EP08861906 A EP 08861906A EP 08861906 A EP08861906 A EP 08861906A EP 2225520 A1 EP2225520 A1 EP 2225520A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- furnace vessel
- furnace
- electrodes
- slag
- 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
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 a device for recovering metals or metal compounds from a material containing the metal or the metal compound.
- the field of application of the invention is the purification of slags from the iron and non-ferrous production and from the precious metal extraction, as well as the improvement of the metal removal in slag-based ferroalloying processes.
- the intensive slag cleaning by means of DC technology with one or more electrodes and bottom electrode (s) and transversely directed magnetic field has already been proposed.
- the round or rectangular electric reduction furnace is a proven standard aggregate for cleaning e.g. Copper slag.
- a system for intensive slag cleaning therefore requires two units connected in series. This requires space, appropriate logistics, connecting gutters, a duplicate design of parts, e.g. Control or exhaust chimneys. Between the two aggregates, the slag cools and thus thermal losses. Standard oven and downstream oven could be sourced from different suppliers.
- the object of the invention is to integrate the slag cleaning by means of DC field and magnetic field, which was hitherto provided only in a separate downstream furnace, into the known industrial object SAF (Submerged Are Furnance), and also US Pat Increasing the efficiency of classic oven technology in just one stage and with just one unit, bundling expertise in just one unit, and simplifying handling. This should make it possible to dispense with the need for two units and to reduce the electrothermal losses.
- SAF Submerged Are Furnance
- a device for recovering metals or metal compounds, from a metal or metal compound containing material with a furnace vessel, with a first inlet for the supply of the material, a first outlet for the discharge of exhaust gas, one or more Electrodes for melting and / or reducing the supplied
- the medium in the oven is set in motion in such a way that in
- the furnace vessel 3 or 6 arranged in series or on a pitch circle electrodes protrude and the furnace vessel is formed round or square.
- the DC current flow to the bottom electrode can be generated according to an embodiment of the invention by an additional electrode, with the function of an anode, which is arranged in the region of the remaining slag tap space.
- an additional electrode with the function of an anode, which is arranged in the region of the remaining slag tap space.
- a transverse bulkhead separating the regions is provided between the region of the furnace vessel in which the electrodes protrude and the region in which the additional electrode projects.
- a simplification of conventional ovens taking into account the core idea of the invention can be achieved in that, dispensing with the additional electrode, the existing electrodes can be switched to DC operation with the bottom electrode.
- the essence of the solution according to the invention is that the basic principle of the magnetic field directed transversely to a DC current flow is integrated into the concept of a standard SAF. It achieves a consistent gradual treatment of slag depending on the metallurgical processes, the process of slag treatment is not interrupted, temperature losses are avoided, the overall system is much smaller, the electrical equipment can be bundled, the handling of the exhaust gas is easier.
- the process of intensive slag cleaning can be specifically controlled in a furnace vessel.
- the superimposition of the different electrical quantities can be optimally matched to one another.
- This version includes the combination of a classic round or angular electric reduction oven (SAF), usually operated with alternating current (AC), and a DC reduction oven with anode and cathode, supplemented by a transversely to it aligned permanent or electromagnet.
- SAF classic round or angular electric reduction oven
- AC alternating current
- DC DC reduction oven with anode and cathode, supplemented by a transversely to it aligned permanent or electromagnet.
- the furnace thus combines the known electric reduction furnace and an intensive slag cleaning furnace in one unit in terms of process technology and design.
- This per se conventional "Enforced slag cleaning furnace", which has been designated 15, usually has 3 or 6 arranged in series or on a pitch circle electrodes 1 in a round or square running furnace vessel 2.
- the medium (slag) 14 is supplied with the energy required for reduction, melting and settling.
- the oven is now designed in such a way that a space 16 remains in the area of the slag tap, in which at least one further electrode 4, with the function of an anode, can be arranged.
- the furnace is designed with a bottom electrode as the cathode 5.
- a variant of the invention provides a switchability of the classical z. B. 3-6 electrodes in conjunction with a kind of batch process.
- the otherwise operating in the AC mode electrodes 1 would be switched to DC operation and in this case could be dispensed with the additional electrode 4.
- the interconnection of the electrodes 1 would thus be temporarily changed to a DC operation with the bottom electrode 5. That is, either a classical reduction furnace process would be operated OR a DC furnace process was operated with 3-6 parallel connected electrodes and bottom electrode and superimposed by the magnetic field as described. In this way existing ovens could be retrofitted even easier.
- the exhaust gases are discharged through the chimney 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (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)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007061025 | 2007-12-18 | ||
DE102008021886 | 2008-05-02 | ||
DE102008058605A DE102008058605A1 (en) | 2007-12-18 | 2008-11-19 | Apparatus for recovering metals or metal compounds from a material containing the metal or metal compound |
PCT/DE2008/002125 WO2009076945A1 (en) | 2007-12-18 | 2008-12-17 | Device for extracting metals or metal compounds from a material containing the metal or the metal compound |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2225520A1 true EP2225520A1 (en) | 2010-09-08 |
EP2225520B1 EP2225520B1 (en) | 2017-07-12 |
Family
ID=40404857
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08862095.0A Not-in-force EP2235461B1 (en) | 2007-12-18 | 2008-12-11 | Device and method for obtaining metals or metal compounds |
EP08861906.9A Not-in-force EP2225520B1 (en) | 2007-12-18 | 2008-12-17 | Device for extracting metals or metal compounds from a material containing the metal or the metal compound |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08862095.0A Not-in-force EP2235461B1 (en) | 2007-12-18 | 2008-12-11 | Device and method for obtaining metals or metal compounds |
Country Status (9)
Country | Link |
---|---|
EP (2) | EP2235461B1 (en) |
CN (2) | CN101903730B (en) |
BR (2) | BRPI0820788B1 (en) |
CL (2) | CL2008003748A1 (en) |
DE (1) | DE102008058605A1 (en) |
PE (2) | PE20091616A1 (en) |
RU (2) | RU2455599C2 (en) |
WO (2) | WO2009077114A1 (en) |
ZA (2) | ZA201003734B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102679718A (en) * | 2011-03-15 | 2012-09-19 | 孙晓冰 | Novel transferred arc plasma furnace structural design |
DE102011090072A1 (en) * | 2011-12-29 | 2013-07-04 | Sms Siemag Ag | A method for recovering a metal from a slag containing the metal and apparatus for recovering the metal |
DE102014015302A1 (en) | 2014-10-13 | 2016-04-14 | Sms Group Gmbh | Apparatus and method for cleaning slags |
RU2624880C2 (en) * | 2015-10-12 | 2017-07-07 | Сергей Федорович Павлов | Method of processing oxidised of nickel ores |
DE102016207798A1 (en) * | 2015-11-19 | 2017-05-24 | Sms Group Gmbh | Settling furnace and method of its operation |
CN106082342B (en) * | 2016-08-16 | 2017-12-08 | 浙江海鸿工业产品设计有限公司 | Molybdenum trisulfide production reaction unit |
CN107218800B (en) * | 2017-06-20 | 2019-07-19 | 青岛大学 | A kind of direct current electric arc furnace |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1422830A (en) * | 1963-09-24 | 1966-01-03 | Union Carbide Corp | Melting apparatus and method with electrode holder |
JPS495691B1 (en) * | 1965-03-23 | 1974-02-08 | ||
SE396531B (en) * | 1975-11-06 | 1977-09-19 | Asea Ab | DEVICE FOR DIRECTION-FEED LIGHT BACK OVEN |
JPS53146202A (en) * | 1977-05-26 | 1978-12-20 | Kawasaki Heavy Ind Ltd | Method and apparatus for melting and refining steel material |
SU1130074A1 (en) * | 1983-09-29 | 1999-07-27 | Всесоюзный научно-исследовательский горно-металлургический институт цветных металлов | FURNACE FOR OXYGEN MELTING POLYMETALLIC MATERIALS |
SU1617284A1 (en) * | 1987-09-24 | 1990-12-30 | И. X. Левин | Electric furnace for processing oxidized and sulphide materials |
CN1020953C (en) * | 1989-07-11 | 1993-05-26 | 太原重型机器厂 | Dc electric-arc furnace with arc-controlling megnetic mirror |
DE4322448A1 (en) * | 1993-07-06 | 1995-01-12 | Abb Research Ltd | Melting furnace for thermal treatment of heavy metal and / or dioxin-containing special waste |
CH688325A5 (en) * | 1994-11-25 | 1997-07-31 | Holderbank Financ Glarus | Process for the treatment of solid residues from waste incineration plants and apparatus for Drchfuehrung the process. |
CN1154411A (en) * | 1995-07-24 | 1997-07-16 | 亚瑞亚·勃朗勃威力有限公司 | Melting equipment |
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 (en) * | 2000-03-30 | 2001-10-10 | Midrex Internatl Bv | Method for producing molten metallic iron |
RU2207476C2 (en) * | 2001-05-14 | 2003-06-27 | Коршунов Евгений Алексеевич | Melting unit |
US6689182B2 (en) * | 2001-10-01 | 2004-02-10 | Kobe Steel, Ltd. | Method and device for producing molten iron |
RU2235258C1 (en) * | 2003-02-28 | 2004-08-27 | Федеральное государственное унитарное предприятие "Институт Гинцветмет" | Technogenious material processing electric furnace |
DE102006022779A1 (en) | 2005-06-08 | 2006-12-21 | Sms Demag Ag | Method and apparatus for recovering a metal from a slag containing the metal |
-
2008
- 2008-11-19 DE DE102008058605A patent/DE102008058605A1/en not_active Withdrawn
- 2008-12-11 CN CN2008801215573A patent/CN101903730B/en not_active Expired - Fee Related
- 2008-12-11 EP EP08862095.0A patent/EP2235461B1/en not_active Not-in-force
- 2008-12-11 WO PCT/EP2008/010490 patent/WO2009077114A1/en active Application Filing
- 2008-12-11 BR BRPI0820788-7A patent/BRPI0820788B1/en not_active IP Right Cessation
- 2008-12-11 RU RU2010129916/02A patent/RU2455599C2/en not_active IP Right Cessation
- 2008-12-16 CL CL2008003748A patent/CL2008003748A1/en unknown
- 2008-12-17 RU RU2010129525/02A patent/RU2455600C2/en not_active IP Right Cessation
- 2008-12-17 EP EP08861906.9A patent/EP2225520B1/en not_active Not-in-force
- 2008-12-17 CN CN2008801211642A patent/CN101903729B/en not_active Expired - Fee Related
- 2008-12-17 PE PE2008002085A patent/PE20091616A1/en not_active Application Discontinuation
- 2008-12-17 WO PCT/DE2008/002125 patent/WO2009076945A1/en active Application Filing
- 2008-12-17 BR BRPI0821164-7A patent/BRPI0821164B1/en not_active IP Right Cessation
- 2008-12-18 PE PE2008002113A patent/PE20091533A1/en not_active Application Discontinuation
- 2008-12-18 CL CL2008003801A patent/CL2008003801A1/en unknown
-
2010
- 2010-05-26 ZA ZA2010/03734A patent/ZA201003734B/en unknown
- 2010-06-10 ZA ZA2010/04163A patent/ZA201004163B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009076945A1 * |
Also Published As
Publication number | Publication date |
---|---|
BRPI0820788B1 (en) | 2017-06-13 |
CN101903730A (en) | 2010-12-01 |
RU2010129525A (en) | 2012-01-27 |
RU2010129916A (en) | 2012-01-27 |
WO2009076945A1 (en) | 2009-06-25 |
WO2009077114A1 (en) | 2009-06-25 |
RU2455599C2 (en) | 2012-07-10 |
CL2008003801A1 (en) | 2009-10-16 |
CN101903729A (en) | 2010-12-01 |
CN101903730B (en) | 2013-12-25 |
ZA201003734B (en) | 2011-03-30 |
EP2235461B1 (en) | 2017-05-31 |
BRPI0820788A2 (en) | 2015-06-16 |
DE102008058605A1 (en) | 2009-07-02 |
EP2235461A1 (en) | 2010-10-06 |
BRPI0821164A2 (en) | 2015-06-16 |
BRPI0820788A8 (en) | 2016-10-11 |
RU2455600C2 (en) | 2012-07-10 |
PE20091533A1 (en) | 2009-10-03 |
ZA201004163B (en) | 2011-02-23 |
CN101903729B (en) | 2013-07-17 |
EP2225520B1 (en) | 2017-07-12 |
BRPI0821164B1 (en) | 2018-01-02 |
CL2008003748A1 (en) | 2009-05-15 |
PE20091616A1 (en) | 2009-11-07 |
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