EP0653496B1 - Procédé et appareil d'obtention de matériaux de valeur - Google Patents
Procédé et appareil d'obtention de matériaux de valeur Download PDFInfo
- 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
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000000463 material Substances 0.000 title claims description 9
- 238000011084 recovery Methods 0.000 title 1
- 239000002893 slag Substances 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 239000000155 melt Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 7
- 238000009434 installation Methods 0.000 claims 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 3
- 238000000746 purification Methods 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 239000003546 flue gas Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 description 19
- 239000000571 coke Substances 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 5
- 229910001338 liquidmetal Inorganic materials 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000011946 reduction process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010782 bulky waste Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- -1 lead or copper Chemical class 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Images
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)
- 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)
Claims (8)
- Procédé pour produire des matières par réduction de métaux liés à de l'oxygène dans des récipients métallurgiques, une charge solide ou liquide, dans une première zone réactionnelle (11), étant alimentée en énergie thermique, jusqu'à ce que, dans le cas d'une charge solide, il se forme un bain de matière en fusion ou, dans le cas d'une charge liquide, un bain de matière en fusion est maintenu, un laitier liquide (S) flottant sur un bain de matière en fusion métallique (M), le bain de matière en fusion étant de plus amené à une seconde zone réactionnelle (12), dans laquelle le laitier vient en contact intime avec un agent réducteur (R), l'agent réducteur étant formé en une colonne et la hauteur de colonne (h) étant choisie de sorte que son poids surmonte la force de poussée du bain de laitier oxydé, et de l'énergie thermique supplémentaire empêchant une solidification étant amenée à la matière en fusion dans la zone de réduction au moyen d'électrodes (54,55) pénétrant de façon inclinée dans l'agent réducteur.
- Procédé selon la revendication 1,
caractérisé en ce que la matière en fusion métallique est coulée de façon continue et le laitier de façon discontinue après la réduction. - Procédé selon la revendication 1,
caractérisé en ce que le gaz de fumée présent dans la première zone réactionnelle est guidé à travers l'agent réducteur et, ensuite, est purifié en même temps que les oxydes d'azote de la seconde zone réactionnelle après évacuation de sa chaleur sensible. - Installation de four de fusion, comportant une paroi de séparation séparant le récipient de four en deux parties et pénétrant dans le récipient à partir du plafond du four, un dispositif pour amener de l'énergie thermique, des dispositifs pour amener de la matière et évacuer de la matière en fusion, ainsi qu'un raccord à une installation de purification de gaz, pour la mise en oeuvre du procédé selon la revendication 1,
caractérisée en ce que la paroi de séparation (21), à partir du plafond (13) du four de la première partie de four (11), présente une longueur (L) pour laquelle l'embouchure (22) de la paroi de séparation pénètre dans le laitier (S) s'y trouvant pendant la fusion environ jusqu'au-dessus du niveau (M) du métal liquide, en ce que la paroi de séparation (21) présente, dans la zone du plafond (13) du four, une ouverture (23) de la première à la seconde partie de four (11,12), en ce que la seconde partie de four (12) est réalisée en forme de cheminée avec une hauteur (H) qui dépasse la hauteur de colonne (h) de l'agent réducteur et dont l'extrémité de tête (14) est munie d'un raccord (41) pour la liaison au dispositif de purification de gaz (42), et en ce que des électrodes (54,55) pénètrent latéralement dans la seconde partie de four (12) dans la zone au-dessus de la matière en fusion, lesquelles sont raccordées à un dispositif d'amenée d'énergie (56). - Installation de four de fusion selon la revendication 4,
caractérisée en ce que la paroi de séparation (21) présente, dans la zone du plafond (13), des ouvertures (23) ayant une taille telle que le gaz peut circuler sans que l'agent réducteur (R) parvienne dans la première partie de four (11). - Installation de four de fusion selon la revendication 4,
caractérisée en ce que la zone de la paroi de séparation (21), qui plonge dans le laitier (S) pendant la fusion, présente des éléments (24) à refroidir par des fluides liquides. - Installation de four de fusion selon la revendication 4,
caractérisée en ce que, à l'extrémité de tête (14) au-dessus de l'évacuation de gaz (41) de la seconde partie de four (12), il est prévu une amenée (31), munie d'un sas (34), pour l'agent réducteur (R). - Installation de four de fusion selon la revendication 4,
caractérisée en ce que le fond commun (15) des première et seconde parties de four (11,12) est incliné sous un angle α de 1 à 70 degrés vers la sortie de coulée (16).
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 (fr) | 1995-05-17 |
EP0653496B1 true 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) |
Families Citing this family (5)
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)
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. |
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 (fr) * | 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 (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 |
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 |
-
1993
- 1993-11-15 DE DE4339226A patent/DE4339226A1/de not_active Withdrawn
-
1994
- 1994-11-01 EP EP94250266A patent/EP0653496B1/fr not_active Expired - Lifetime
- 1994-11-01 DE DE59407914T patent/DE59407914D1/de not_active Expired - Fee Related
- 1994-11-09 NO NO944267A patent/NO304030B1/no unknown
- 1994-11-14 CN CN94118389A patent/CN1037530C/zh not_active Expired - Fee Related
- 1994-11-14 BR BR9404454A patent/BR9404454A/pt not_active IP Right Cessation
- 1994-11-15 US US08/339,777 patent/US5500870A/en not_active Expired - Fee Related
- 1994-11-15 ZA ZA949068A patent/ZA949068B/xx unknown
- 1994-11-15 CA CA002135830A patent/CA2135830A1/fr not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA2135830A1 (fr) | 1995-05-16 |
BR9404454A (pt) | 1995-06-20 |
DE59407914D1 (de) | 1999-04-15 |
NO304030B1 (no) | 1998-10-12 |
NO944267L (no) | 1995-05-16 |
DE4339226A1 (de) | 1995-05-18 |
CN1037530C (zh) | 1998-02-25 |
US5500870A (en) | 1996-03-19 |
EP0653496A1 (fr) | 1995-05-17 |
CN1111287A (zh) | 1995-11-08 |
ZA949068B (en) | 1995-07-20 |
NO944267D0 (no) | 1994-11-09 |
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