EP0653496A1 - Procédé et appareil d'obtention de matériaux de valeur - Google Patents

Procédé et appareil d'obtention de matériaux de valeur Download PDF

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Publication number
EP0653496A1
EP0653496A1 EP94250266A EP94250266A EP0653496A1 EP 0653496 A1 EP0653496 A1 EP 0653496A1 EP 94250266 A EP94250266 A EP 94250266A EP 94250266 A EP94250266 A EP 94250266A EP 0653496 A1 EP0653496 A1 EP 0653496A1
Authority
EP
European Patent Office
Prior art keywords
furnace
melt
reducing agent
slag
partition
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
Application number
EP94250266A
Other languages
German (de)
English (en)
Other versions
EP0653496B1 (fr
Inventor
Heribert König
Heinz Stark
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0653496A1 publication Critical patent/EP0653496A1/fr
Application granted granted Critical
Publication of EP0653496B1 publication Critical patent/EP0653496B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • 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
    • 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
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/20—Arrangements of heating devices
    • F27B3/205—Burners

Definitions

  • the invention relates to a process for recovering valuable materials from oxygen-bound metals by reduction in metallurgical vessels and a melting furnace system with a partition separating the vessel in two parts from the furnace ceiling and into the vessel, with a device for supplying thermal energy, material supply and melt removal devices and a connection to a gas cleaning system.
  • a system with a reactor filled with liquid metal in which a partition is arranged in the central region of the reactor, which has at least one passage opening for the liquid metal at the bottom of the reactor.
  • This system is used for the gasification of inferior fuels in a molten metal melt bath, in particular an iron melt bath, and is not suitable for reducing an oxidic, metallurgical value melt.
  • Inferior fuels including waste oil, household waste, bulky waste, waste materials, car tires and the like. ⁇ ., introduced into the molten metal.
  • the carbon contained in the inferior fuel as well as the sulfur dissolve in the iron bath.
  • the non-gasifiable or insoluble constituents of the inferior fuels are slagged and immediately withdrawn from the reactor chamber via the extraction device. There is no intimate contact between a reducing agent and the slag melt.
  • the invention has set itself the goal of specifying a method and the melting furnace installation required for the extraction of valuable materials from oxygen-bound metals, with which the output is increased with a simultaneous reduction in the reduction time.
  • the invention solves the problem with the characterizing features of method claim 1 and device claim 5.
  • a first furnace part of the metallurgical vessel is equipped with a partition wall which dips into the slag and which separates part of the furnace chamber. The oxidic melt penetrates under the partition into the separated part of the hearth and assumes the same level there.
  • the second part of the furnace is designed as a shaft and filled with coke, so high that the weight of the coke column becomes so great that the buoyancy of the oxidic bath is overcome and the coke is immersed over the entire height of the slag bath floating on the molten metal.
  • electrodes protruding obliquely into the reducing agent shaft are provided, which are provided with an electrical energy source.
  • an electrical voltage is applied to the electrodes, a current flows through the electrical resistance of the reducing agent Electrode to electrode, which generates the Joule heat required for the reduction process.
  • the gas generated during the reduction roams the coke layers of the shaft against the direction of the coke. Possibly. Carbon dioxide produced during the course of the process is reduced by the reducing agent, so that a high-quality fuel gas is obtained in total above the coke bed.
  • the gas generated in the first furnace part is passed through the partition into the reducing agent shaft.
  • this carbon dioxide is reduced to valuable gas by the reducing agent.
  • Another advantage is that the dust load of the exhaust gas from the first furnace part is deposited in the coke structure and is returned to the process. This relieves the pressure on the gas cleaning system and increases the amount of valuable gas.
  • FIG. 1 shows a side view
  • FIG. 2 shows a plan view
  • the figures show a first furnace part 11 and a second furnace part 12, which are connected to one another by a common vessel base 15.
  • the furnace part 11 is closed by a furnace roof 13, through which electrodes 51 to 53 and feed 33 are provided for the supply of solid mold.
  • a feed 32 for liquid molds which can be operated by a pan 35.
  • a partition 21 is provided between the furnace part 11 and the shaft-shaped furnace part 12.
  • This partition wall 21 has a length which allows such a large distance between the mouth 22 and the bottom of the vessel that the partition wall does not contain liquid metal during operation comes into contact.
  • An opening 23 is provided in the partition 21, through which gas can get into the furnace part 12 from the furnace part 11.
  • the part of the partition wall 21 which dips into the slag during operation is constructed from cooling elements 24 through which a coolant can be passed.
  • a tapping 17 for slag S and a tapping 16 for liquid metal M are provided in the side wall 19 of the furnace part 12. The tapping 16 is arranged at the same height as the vessel bottom 15 falling at an angle of inclination.
  • the head end of the shaft-shaped furnace part 12 is drawn in like a lid and has a feed 31 for the reducing agent R in its center.
  • the feed 31 as well as the feed 33 have locks 34 which prevent the gas from flowing out of the furnace.
  • a connection 41 to a gas cleaning device 42 is provided in the area of the head end 14 of the furnace part 12.
  • the total shaft of the furnace part 12 has a shaft height H which is significantly higher than the column height h of the reducing agent R.
  • FIG. 2 shows the position of the burners 54, 55 (not shown in FIG. 1) that protrude into the reducing agent R to above the slag level and are connected to an energy device 56 for direct current.
  • the electrodes 51 to 53 are connected to an energy device 57 for alternating current. Energy devices for other media for supplying heat are also possible for operating the furnace system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Processing Of Solid Wastes (AREA)
EP94250266A 1993-11-15 1994-11-01 Procédé et appareil d'obtention de matériaux de valeur Expired - Lifetime EP0653496B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4339226A DE4339226A1 (de) 1993-11-15 1993-11-15 Verfahren und Vorrichtung zur Wertstoffgewinnung
DE4339226 1993-11-15

Publications (2)

Publication Number Publication Date
EP0653496A1 true EP0653496A1 (fr) 1995-05-17
EP0653496B1 EP0653496B1 (fr) 1999-03-10

Family

ID=6502792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94250266A Expired - Lifetime EP0653496B1 (fr) 1993-11-15 1994-11-01 Procédé et appareil d'obtention de matériaux de valeur

Country Status (8)

Country Link
US (1) US5500870A (fr)
EP (1) EP0653496B1 (fr)
CN (1) CN1037530C (fr)
BR (1) BR9404454A (fr)
CA (1) CA2135830A1 (fr)
DE (2) DE4339226A1 (fr)
NO (1) NO304030B1 (fr)
ZA (1) ZA949068B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010097A1 (fr) * 1994-09-29 1996-04-04 Von Roll Umwelttechnik Ag Procede et dispositif pour le traitement de residus solides d'installations d'incineration de dechets
WO1997028287A1 (fr) * 1996-01-29 1997-08-07 Universite Libre De Bruxelles Procede de traitement d'un produit pulverulent et installation pour la mise en oeuvre de ce procede
WO1999020802A1 (fr) * 1997-10-17 1999-04-29 Paul Wurth S.A. Procede pour la fusion en continu de produits metalliques solides
CN105420498A (zh) * 2015-12-25 2016-03-23 天津闪速炼铁技术有限公司 一种连续冶金装置和冶金方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017218649A1 (de) * 2017-10-19 2019-04-25 Sms Group Gmbh Zwischenbehälter zur Schlackenabtrennung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252215B (fr) *
AT15489B (de) * 1901-11-05 1904-03-10 Henri Harmet Elektrometallurgisches Verfahren zur Gewinnung von Eisen und Eisenlegierungen in einem dreifachen Ofen.
GB827622A (en) * 1955-11-16 1960-02-10 Union Carbide Corp Treatment of flue gases containing suspended solids
DE2509061A1 (de) * 1974-03-15 1975-09-18 Asea Ab Verfahren und durchfuehrungsanordnung zur gewinnung einer kohlenstoffhaltigen metallschmelze aus metalloxydhaltigem material
US4168156A (en) * 1976-06-17 1979-09-18 Shabalina Roza I Method of and electric furnace for processing nonferrous molten slags
DE3614048A1 (de) * 1986-04-25 1987-11-05 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur vergasung minderwertiger brennstoffe in einem feuerfluessigen metallschmelzbad

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1522665A (en) * 1922-02-16 1925-01-13 Wright Parvin Electric furnace and method of operating the same
US2254809A (en) * 1936-12-21 1941-09-02 Tharaldsen Filip Metal melting furnace
US3555164A (en) * 1967-02-17 1971-01-12 Vladimir Nikolaevich Kostin Method of processing ores and concentrates containing rare metals and a unit for effecting said method
FR1601438A (fr) * 1968-10-17 1970-08-24
US4203761A (en) * 1973-02-21 1980-05-20 Robert C. LeMay Process of smelting with submerged burner
LU78341A1 (fr) * 1977-10-19 1979-02-02
AT384669B (de) * 1986-03-17 1987-12-28 Voest Alpine Ag Anlage zur herstellung von stahl aus schrott
US5400358A (en) * 1992-10-13 1995-03-21 Consteel, S.A. Continuous scrap preheating

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252215B (fr) *
AT15489B (de) * 1901-11-05 1904-03-10 Henri Harmet Elektrometallurgisches Verfahren zur Gewinnung von Eisen und Eisenlegierungen in einem dreifachen Ofen.
GB827622A (en) * 1955-11-16 1960-02-10 Union Carbide Corp Treatment of flue gases containing suspended solids
DE2509061A1 (de) * 1974-03-15 1975-09-18 Asea Ab Verfahren und durchfuehrungsanordnung zur gewinnung einer kohlenstoffhaltigen metallschmelze aus metalloxydhaltigem material
US4168156A (en) * 1976-06-17 1979-09-18 Shabalina Roza I Method of and electric furnace for processing nonferrous molten slags
DE3614048A1 (de) * 1986-04-25 1987-11-05 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur vergasung minderwertiger brennstoffe in einem feuerfluessigen metallschmelzbad

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010097A1 (fr) * 1994-09-29 1996-04-04 Von Roll Umwelttechnik Ag Procede et dispositif pour le traitement de residus solides d'installations d'incineration de dechets
WO1997028287A1 (fr) * 1996-01-29 1997-08-07 Universite Libre De Bruxelles Procede de traitement d'un produit pulverulent et installation pour la mise en oeuvre de ce procede
BE1009996A3 (fr) * 1996-01-29 1997-11-04 Univ Bruxelles Procede de traitement d'un produit pulverulent et installation pour la mise en oeuvre de ce procede.
WO1999020802A1 (fr) * 1997-10-17 1999-04-29 Paul Wurth S.A. Procede pour la fusion en continu de produits metalliques solides
US6314123B1 (en) 1997-10-17 2001-11-06 Paul Wurth S.A. Method for continuous smelting of solid metal products
CN105420498A (zh) * 2015-12-25 2016-03-23 天津闪速炼铁技术有限公司 一种连续冶金装置和冶金方法
CN105420498B (zh) * 2015-12-25 2017-11-03 天津闪速炼铁技术有限公司 一种连续冶金装置和冶金方法

Also Published As

Publication number Publication date
US5500870A (en) 1996-03-19
NO944267D0 (no) 1994-11-09
CN1111287A (zh) 1995-11-08
NO304030B1 (no) 1998-10-12
EP0653496B1 (fr) 1999-03-10
BR9404454A (pt) 1995-06-20
NO944267L (no) 1995-05-16
CA2135830A1 (fr) 1995-05-16
DE4339226A1 (de) 1995-05-18
CN1037530C (zh) 1998-02-25
DE59407914D1 (de) 1999-04-15
ZA949068B (en) 1995-07-20

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