EP0653496B1 - Verfahren und Vorrichtung zur Wertstoffgewinnung - Google Patents

Verfahren und Vorrichtung zur Wertstoffgewinnung Download PDF

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Publication number
EP0653496B1
EP0653496B1 EP94250266A EP94250266A EP0653496B1 EP 0653496 B1 EP0653496 B1 EP 0653496B1 EP 94250266 A EP94250266 A EP 94250266A EP 94250266 A EP94250266 A EP 94250266A EP 0653496 B1 EP0653496 B1 EP 0653496B1
Authority
EP
European Patent Office
Prior art keywords
furnace
slag
melt
partition wall
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.)
Expired - Lifetime
Application number
EP94250266A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0653496A1 (de
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/de
Application granted granted Critical
Publication of EP0653496B1 publication Critical patent/EP0653496B1/de
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 method for extracting valuable materials Oxygen-bound metals through reduction in metallurgical Vessels and a melting furnace with the vessel in two parts separating partition protruding from the furnace ceiling into the vessel, with a device for supplying thermal energy, material supply and Melt removal devices and a connection to a Gas cleaning system.
  • the invention has set itself the goal of specifying a method and the melting furnace system required for this to obtain valuable materials from oxygen-bound metals, by means of 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 a 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 sideways into the reducing agent shaft are provided, which are connected to an energy supply device.
  • an electrical voltage is applied to the electrodes, a current flows from electrode to electrode through the electrical resistance of the reducing agent, which current 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. In 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 bottom 15 are.
  • the furnace part 11 is closed off by a furnace roof 13 the electrodes 51 to 53 and feed 33 for the supply of solid Möller are provided.
  • a feed 32 provided for liquid grinder, which is operated by a pan 35 can be.
  • 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 come into contact with liquid metal during operation.
  • 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 lid-like fed and has in its center a feed 31 for the Reducing agent R on. Have the feed 31 as well as the feed 33 Locks 34, which prevent the gas from escaping from the furnace. In the area of the head end 14 of the furnace part 12 there is a connection 41 gas cleaning 42 is provided.
  • the total shaft of the furnace section 12 has a shaft height H that is significantly higher than the column height h of the reducing agent R.
  • FIG. 2 shows the position of the electrodes 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)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (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 Verfahren und Vorrichtung zur Wertstoffgewinnung Expired - Lifetime EP0653496B1 (de)

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 EP0653496A1 (de) 1995-05-17
EP0653496B1 true EP0653496B1 (de) 1999-03-10

Family

ID=6502792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94250266A Expired - Lifetime EP0653496B1 (de) 1993-11-15 1994-11-01 Verfahren und Vorrichtung zur Wertstoffgewinnung

Country Status (8)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH686764A8 (de) * 1994-09-29 1996-08-15 Von Roll Umwelttechnik Ag Verfahren zur Aufbereitung von festen Rückständen aus Müllverbrennungsanlagen und Vorrichtung zur Durchführung des Verfahrens.
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.
LU90154B1 (fr) * 1997-10-17 1999-04-19 Wurth Paul Sa Procede pour la fusion en continu de produits metalliques solides
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
DE102017218649A1 (de) * 2017-10-19 2019-04-25 Sms Group Gmbh Zwischenbehälter zur Schlackenabtrennung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252215B (xx) *
AT15489B (de) * 1901-11-05 1904-03-10 Henri Harmet Elektrometallurgisches Verfahren zur Gewinnung von Eisen und Eisenlegierungen in einem dreifachen Ofen.
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
GB827622A (en) * 1955-11-16 1960-02-10 Union Carbide Corp Treatment of flue gases containing suspended solids
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 (xx) * 1968-10-17 1970-08-24
US4203761A (en) * 1973-02-21 1980-05-20 Robert C. LeMay Process of smelting with submerged burner
SE380832B (sv) * 1974-03-15 1975-11-17 Asea Ab Sett och anordning for framstellning av kolhaltig metallsmelta ur metalloxidhaltigt material
SE427047B (sv) * 1976-06-17 1983-02-28 Gnii Tsvetny Forfarande och ugn for behandling av inom icke-jern-metallindustri erhallenslagg med kolhaltigt reduktionsmedel
LU78341A1 (xx) * 1977-10-19 1979-02-02
AT384669B (de) * 1986-03-17 1987-12-28 Voest Alpine Ag Anlage zur herstellung von stahl aus schrott
DE3614048A1 (de) * 1986-04-25 1987-11-05 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur vergasung minderwertiger brennstoffe in einem feuerfluessigen metallschmelzbad
US5400358A (en) * 1992-10-13 1995-03-21 Consteel, S.A. Continuous scrap preheating

Also Published As

Publication number Publication date
NO944267D0 (no) 1994-11-09
NO304030B1 (no) 1998-10-12
BR9404454A (pt) 1995-06-20
ZA949068B (en) 1995-07-20
CN1111287A (zh) 1995-11-08
EP0653496A1 (de) 1995-05-17
DE59407914D1 (de) 1999-04-15
NO944267L (no) 1995-05-16
US5500870A (en) 1996-03-19
CN1037530C (zh) 1998-02-25
DE4339226A1 (de) 1995-05-18
CA2135830A1 (en) 1995-05-16

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