EP0799323B1 - Unite metallurgique basculante constituee de plusieurs recipients - Google Patents

Unite metallurgique basculante constituee de plusieurs recipients Download PDF

Info

Publication number
EP0799323B1
EP0799323B1 EP95942719A EP95942719A EP0799323B1 EP 0799323 B1 EP0799323 B1 EP 0799323B1 EP 95942719 A EP95942719 A EP 95942719A EP 95942719 A EP95942719 A EP 95942719A EP 0799323 B1 EP0799323 B1 EP 0799323B1
Authority
EP
European Patent Office
Prior art keywords
vessel
treatment
melting vessel
melting
metallurgical
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
EP95942719A
Other languages
German (de)
English (en)
Other versions
EP0799323A1 (fr
Inventor
Gerhard Fuchs
Joachim Ehle
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.)
Arcmet Technologie GmbH
Original Assignee
Arcmet Technologie GmbH
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 Arcmet Technologie GmbH filed Critical Arcmet Technologie GmbH
Publication of EP0799323A1 publication Critical patent/EP0799323A1/fr
Application granted granted Critical
Publication of EP0799323B1 publication Critical patent/EP0799323B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C21C5/5252—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
    • F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type 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
    • F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
    • F27B3/065—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement tiltable
    • 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
    • F27B3/18—Arrangements of devices for charging
    • F27B3/183—Charging of arc furnaces vertically through the roof, e.g. in three points
    • F27B3/186—Charging in a vertical chamber adjacent to the melting chamber
    • 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
    • F27B3/19—Arrangements of devices for discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • 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 tiltable metallurgical unit for melting metallic insert material, in particular iron-containing material, and for aftertreatment the molten metal.
  • EP-0 240 485-B1 describes a plant for the production of steel from scrap and If necessary, aggregates become known, with a shaft furnace part that a liquid sump from premelt-absorbing soil and laterally in the lower Has part of its interior opening heating devices and with a the shaft furnace part integrally connected hearth furnace part, in which the premelt can be transferred from the shaft furnace part.
  • the stove section immediately adjoins the Lower part of the shaft furnace part.
  • the Bottom is arranged lower than the bottom of the shaft furnace part.
  • the entire, made of shaft furnace part and stove part existing unit is tiltable and perpendicular to one that Center of the shaft furnace part with the horizontal connecting the center of the stove part Axis. By tilting perpendicular to this axis you can tilt required forces are kept low despite the large masses to be moved.
  • the stove section has an eccentrically arranged bottom cut for the steel and a work door in a side wall for removing the slag.
  • Both the The lower part of the shaft furnace part and that of the hearth furnace part have a floor plan circular interior, the interior of the shaft furnace part the interior of the hearth part in the floor plan and the transition from one room to the other another is narrowed.
  • A serves as the heating device for the stove part Arc unit while as a heating device for the shaft furnace part one
  • a plurality of plasma torches is used, which are located in the lower region of the shaft furnace part along the Are arranged circumferentially distributed.
  • the bottom recess of the shaft furnace part is relatively shallow and the upper edge the overflow weir has a small height compared to the bottom recess, so that at the beginning of a melting process, only a small amount of the premelt in the Bottom recess of the shaft furnace part is retained and after the sump formation Premelt flows continuously through the overflow weir into the stove section.
  • the area of the overflow weir is to prevent the melt from freezing
  • the inclination of the plasma torch is adjusted so that the premelt is directed towards the overflow weir is overheated and there is still a plasma torch between the
  • the shaft furnace part and the stove part are provided so that the premelt in the area of Overflow weir can be overheated and the continuous flow of the premelt is ensured.
  • the metallurgical treatment in the hearth section begins as soon as half the bath depth is reached.
  • the melt is Tapping temperature heated. Premelt flows continuously during this process the shaft furnace part.
  • the tapping weight in the hearth part is reached, by Tilting of the unit tapped without slag using an eccentric bottom tap opening.
  • EP-0 548 042-A2 differs from that System according to EP-0 240 485-B1 essentially in that as a heating device for a furnace vessel forming the shaft furnace, which is connected to an electric stove is, instead of the plasma torch graphite electrodes used in projecting extensions of the lower part of the shaft furnace can be inserted.
  • DE-25 04 911-A1 is a device for melting scrap, sponge iron or the like in a shaft furnace by means of a fuel-oxygen flame from below and an outlet for the melted material in the bottom of the Shaft furnace for continuous steelmaking has become known, with the Shaft furnace, a heating vessel attached to this side is integrated.
  • the shaft furnace has an outlet for molten material at the deepest point of its floor Metal, which is connected to the superheating vessel via a channel and also in a slag drain on the side wall.
  • the overheating vessel has an overflow, which is slightly below the height of the slag outlet. That in Overheating vessel overheated liquid metal continuously flows over the overflow and is via the connecting channel to the shaft furnace through the melted in it liquid metal continuously replaced.
  • the superheating vessel is arced heated. The unit cannot be tilted.
  • US-A-4 552 343 describes a tiltable arc furnace with a closed, pouring spout attached to the vessel for slag-free tapping. In the pouring spout there is no treatment or further heating of the melt.
  • Japanese laid-open patent publication JP-2-290 912 A describes a tiltable, metallurgical Unit that contains a first and a second furnace chamber by a weir are separated. Separate heating devices are assigned to the furnace chambers. In the first The feedstock is melted and the in the second furnace chamber Melt treated. So that the steel of the second chamber that is being treated not be mixed with the steel of the first chamber that is being melted can, after tapping the steel of the second chamber by tilting the vessel the steel melted in the first chamber and held back by the weir into the transferred to the second chamber for further treatment, while after the Tilting back the vessel melted new steel at the same time in the first chamber becomes.
  • the second chamber lies in the tilting direction behind the first chamber, d. H. aligned to the direction of tilt. This leads to an overall vessel, which has large dimensions in this direction. So that are for the tipping process great forces required.
  • the invention has for its object a metallurgical unit of the last to make the type described compact and in such an aggregate when tilting to keep moving masses as low as possible.
  • Melting vessel and treatment vessel should be optimally trained independently of each other with regard to their objectives and can be operated.
  • the energy consumption of the unit per ton should be produced Metal are minimized and the hot exhaust gases from the treatment vessel, and the melting vessel can be used for preheating the feed material be.
  • a melting vessel that a stove for Inclusion of a substantial part, preferably the entire amount of a furnace batch contains and a treatment vessel attached to the side of the melting vessel for receiving the molten metal from the furnace of the melting vessel and to the metallurgical Treatment of the melt combined into an aggregate that can be tilted about a tilt axis or can be passed along a roller track.
  • a treatment vessel attached to the side of the melting vessel for receiving the molten metal from the furnace of the melting vessel and to the metallurgical Treatment of the melt combined into an aggregate that can be tilted about a tilt axis or can be passed along a roller track.
  • Via a channel between the melting vessel and the treatment vessel which is arranged at a height such that the desired Amount of molten metal can be retained in the melting vessel, this is at Tilting the unit into the treatment vessel can be transferred.
  • Transferring the molten metal does not happen continuously over an overflow weir, but in batches only when the desired amount of molten metal has accumulated in the melting vessel Has.
  • the hot molten metal flows through the channel when the unit tips over to the treatment vessel in a short time, so that there is no risk of cooling down here consists.
  • the Metal melt transferred into the treatment vessel during the previous tilting process treated metallurgically, so that both processes run parallel to each other, the Melting vessel in its size and equipment with regard to the melting process can be optimized and the treatment vessel with regard to the metallurgical Treatment.
  • Heat is supplied to the two vessels by burning fossil fuels
  • Fuels, supply of oxygen-containing gases and possibly coal through soil stones or under-bath jets and can be done by electrical energy should be tuned in this way be that the melting time corresponds approximately to the treatment time, so that after the Tapping the treatment vessel through the metal melt formed in the melting vessel Tilting the unit into the treatment vessel and immediately after that parallel operation of the two vessels can be continued. Since during the Melting process, the melt formed in the melting vessel does not enter the treatment vessel overflows, but the process of transferring the melt by tilting the Is controlled aggregate, the metallurgical treatment in the treatment vessel is not disrupted by inflowing melt.
  • the treatment vessel is not aligned with the melting vessel in the tilting direction or in a perpendicular to the tilt axis of the unit arranged, but in contrast offset laterally, so that the top view Connection line between the centers of the vessels and the tilting direction of the unit encloses an acute angle.
  • This angle is preferably approximately 45 °.
  • the channel between the two vessels should be arranged so that in the Top view from the melting vessel, one in the tilt direction through the center of the melting vessel is still drawn within the inlet opening of the channel Treatment vessel is. This point of the circumference of the vessel is the deepest and when tilted thereby enables better emptying of the at a given tilt angle Melting vessel.
  • the unit is preferably not only in its starting position in the one described so far positive tilt direction in which the melt from the melting vessel into the Treatment vessel is transferable, but also in the reverse, negative tilt direction, to allow the vessels to be detached.
  • the sole of the connecting channel between The melting vessel and treatment vessel are so high that the two vessels operate in parallel can be without melt from the melting vessel into the treatment vessel overflows.
  • the sole of the connecting channel should be opposite the bottom of the melting vessel by an amount higher than that in the starting position of the aggregate Retain the melt in the furnace of the melting vessel by at least half Capacity of the treatment vessel, preferably the entire capacity of the treatment vessel allows.
  • the bottom of the vessel of the aftertreatment vessel is lower than the bottom of the melting vessel, in order to Tilt the entire melt from the melting vessel into the treatment vessel can.
  • the melting pot have a larger diameter than the treatment vessel.
  • connection channel between the two vessels as a channel open at the top in a fire-resistant material existing partition between the two vessels.
  • the hot exhaust gases from the treatment vessel and the melting vessel are useful used to preheat the feed material to be charged into the melting vessel.
  • This can be done in a particularly compact and efficient manner in that the Lid of the melting vessel is fastened in a holding structure, which is also a trained as Chargiergutvorierr shaft whose lower opening in the Interior of the melting vessel opens.
  • the over the connecting channel in particular if this is designed as a channel open at the top, from the treatment vessel into the Hot exhaust gases entering the melting vessel, and the hot exhaust gases of the melting vessel are then replaced by a scrap column that forms in the area below and in the shaft drained upwards through the shaft and preheat the cargo.
  • the shaft can also have locking members that come from a closed position for holding cargo in the interior of the shaft in a release position are movable in which they allow the passage through the shaft.
  • the cargo can be retained in the shaft and the heat utilization improve even further.
  • the metallurgical aggregate contains for melting metal feed and for post-treatment of the metal melt a melting vessel 1 and one connected to it to form a structural unit Treatment vessel 2, which is attached to the side of the melting vessel 1.
  • the two Vessels are fastened in a frame 3 which is tiltably mounted.
  • the frame has an oven cradle 5 which can be rolled on a roller track 4, and a hydraulic actuator 6 engaging on the frame, with which the unit around a horizontal tilt axis 7 from the starting position shown in Figures 2 and 4 both in a positive tilt direction 8 and in a negative tilt direction 9 is tiltable by a predetermined tilt angle.
  • the melting vessel 1 has a charging opening 10 for introduction of the feed material, which is formed in the vessel lid 11 and contains one Oven range 12 for receiving molten metal 13.
  • the oven range 12 is usually 12 made of refractory material, while the upper vessel placed on the stove 14 and the lid 11 consist of water-cooled elements.
  • Drain opening 15 for removing the molten metal and this one opposite Working opening 16 is provided for removing slag from the melting vessel 1.
  • the drain opening 15 is located with respect to the center of the vessel 17 in the positive tilt direction 8, while the working opening 16 in the negative Tilting direction 9 is such that the metal melt 13 when tilting in the positive direction 8 discharged from the oven range 12 and 9 slag by tilting in the negative direction the working opening 16 can be removed.
  • the treatment vessel 2 attached to the side of the melting vessel 1 for receiving the Molten metal 13 from the furnace 12 is lined with refractory material and forms, as the figures clearly show, a constructive unity with the Smelting vessel 1.
  • the treatment vessel is preferably sized so that that it is able to reach the maximum allowable volume of the molten metal of the melting vessel record, the cross section of the treatment vessel is significantly smaller than is that of the melting pot.
  • the treatment vessel takes on the function of a pan, has a tap hole 18 in the bottom and possibly gas purging stones or under bath nozzles for blowing in treatment gases and solids (not shown) and is covered with a water-cooled lid 19.
  • the tap opening 18 with respect to the center 20 of the treatment vessel 2 in positive tilt direction 8 is arranged in the opposite half of the treatment vessel a working opening 21 is provided, via which when the unit tilts 9 slag can be withdrawn from the treatment vessel in the negative tilt direction.
  • the treatment vessel 2 has an inlet opening 22 for the molten metal and is so attached adjacent to the melting vessel that in plan view (see FIG. 3) the connecting line 23 with respect to the center 17 of the melting vessel 1 one between the vessel centers 17 and 20 with respect to the positive tilt direction 8 includes an acute angle ⁇ , which in the case shown is approximately 45 °. This is it possible to move the vessel centers 17 and 20 closer together with respect to the tilting direction and thus to concentrate the masses to be moved.
  • the metallurgical aggregate is in the non-tilted state in its starting position, the bottom of the vessel 24 of the aftertreatment vessel 2 is called deeper than the vessel bottom 25 of the melting vessel 1, that is to say the furnace hearth 12.
  • the drain opening 15 of the melting vessel 1 is with the inlet opening 22 of the treatment vessel 2 connected by a connecting channel 26, which is designed as an upwardly open channel is.
  • the gutter is structurally formed in that the lining for the stove and the treatment vessel, the upper edges of which lie in the same plane, by a tangential section 27 is connected between the two vessels and adjacent to this tangential connecting portion 27 in the partition 28 between the two Vessels the upwardly open channel of the connecting channel 26 is formed.
  • the sole 29 of the connecting channel lies around one significant amount higher than the bottom 25 of the melting vessel 1. It should at least are so high that in the starting position of the unit shown in Figure 4 in the oven 12 of the melting vessel 1 at least half the capacity of Treatment vessel 2 can be retained.
  • the melting vessel 1 is for the supply of for melting the metallic feed required heat energy assigned a first heating device, the arc electrodes.
  • Induction coils, burners, gas purging stones, under bath nozzles, inflation and Afterburning nozzles or other known heating devices for heating and Melting the feed can include.
  • Figure 3 are representative of the first Heating device side wall burner 30 indicated and one in Figures 4 and 6 Passage opening 31 in the vessel lid 11 for the insertion of an arc electrode 40.
  • a second heating device is assigned to the treatment vessel.
  • the second heater may include the same energy sources as the first heater.
  • the heating devices known from ladle metallurgy are preferred.
  • Representative Arc electrodes 40 are shown in FIG. About floor washing stones (not shown) or nozzles 32 can gases and also pulverized solids in the melt be initiated for their treatment.
  • a lifting and swiveling device 33 for three Electrodes 40 arranged such that the electrodes are optionally in the melting vessel 1 and insertable into the treatment vessel 2 and there as the first or second heating device can be used.
  • the lifting and swiveling device 33 is, as in particular FIG. 3 can be seen attached to the tilting frame 3 of the unit, so that when tilting the The electrodes do not have to be removed from the relevant vessel.
  • the melting vessel 1 has one Charge preheater 34.
  • This is designed as a shaft and in the support structure 35 attached for the lid 11.
  • the basic structure of such Melting vessel with an integrated charge preheater is described in WO 90/10 086. Accordingly, a segment of the cover is replaced by a shaft over which the metallic insert material can be charged into the melting vessel.
  • the lower opening of the shaft is the inlet opening 10 of the melting vessel present in cover 11.
  • the charge material preheater 34 is displaceable to the side by a Cover 36 closed. Those that are passed through the charge preheater are called Furnace exhaust gases are drawn off via an upper outlet opening 38.
  • the charge material preheater has blocking members 37 in the form of fingers lying next to each other at a distance from one another in the 6 closed position shown in solid lines in a dashed line shown release position are pivotable downwards, in which they pass release through the shaft.
  • the feed material retained in the charge preheater and can be caused by the hot furnace gases are flowed through from below through the spaces between the blocking elements 37 enter the charge column and after giving off its heat through the outlet opening 38 are deducted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Claims (15)

  1. Unité métallurgique pour fondre un matériau métallique de charge et pour retraiter le métal liquide, qui peut, à partir d'une position initiale, être basculée dans un sens (8) positif de basculement autour d'un axe (7) de basculement ou roulée le long d'une piste (4) de roulement, comportant
    a) un récipient (1) de fusion, pourvu d'une ouverture (10) de chargement pour introduire le matériau de charge, qui comprend une sole (12) de four pour recevoir le métal (13) liquide, dans la paroi latérale de laquelle est disposée une ouverture (15) d'évacuation pour retirer le métal (13) liquide de la sole de four lors du basculement de l'unité,
    b) un premier dispositif (30, 38) de chauffage, associé au récipient de fusion pour fondre le matériau de charge,
    c) un récipient (2) de traitement, monté sur le côté du récipient de fusion et destiné à recevoir le métal liquide provenant de la sole (12) de four du récipient (1) de fusion et à son traitement métallurgique, qui comprend une ouverture (22) d'entrée pour le métal liquide et une ouverture (18) de coulée,
    d) un deuxième dispositif (38) de chauffage, associé au récipient de traitement pour le traitement métallurgique du métal liquide, et
    e) un canal (26) reliant l'ouverture (15) d'évacuation du récipient (1) de fusion à l'ouverture (22) d'entrée du récipient (2) de traitement, canal par l'intermédiaire duquel le métal (13) liquide, s'évacuant par l'ouverture (15) d'évacuation du récipient (1) de fusion lors du basculement de l'unité dans le sens (8) positif de basculement, peut être transféré dans le récipient (2) de traitement, la ligne (23) de jonction entre le centre (17) du récipient (1) de fusion et le centre (20) du récipient (2) de traitement faisant, en vue de dessus, un angle (α) aigu avec le sens (8) positif de basculement de l'unité.
  2. Unité métallurgique suivant la revendication 1, caractérisée en ce qu'elle peut, afin d'enlever la scorie, être roulée ou basculée dans un sens (9) négatif de basculement, opposé au sens (8) positif de basculement.
  3. Unité métallurgique suivant la revendication 1 ou 2, caractérisée en ce que, en vue de dessus, une ligne passant par le centre (17) du récipient (1) de fusion dans le sens (8) positif de basculement coupe la paroi de ce récipient dans la région de l'ouverture (15) d'évacuation.
  4. Unité métallurgique suivant l'une des revendications 1 à 3, caractérisée en ce que la paroi du récipient (1) de fusion comporte une ouverture (16) de travail sur le côté opposé à l'ouverture (15) d'évacuation.
  5. Unité métallurgique suivant l'une des revendications 1 à 4, caractérisée en ce que l'ouverture (18) de coulée du récipient (2) de traitement est disposée, par rapport au sens (8) positif de basculement, excentriquement dans la région de bord extérieure du fond (24) du récipient (2) de traitement.
  6. Unité métallurgique suivant l'une des revendications 1 à 5, caractérisée en ce que la paroi du récipient (2) de traitement comporte une ouverture (21) de travail dans le sens (9) négatif de basculement, par rapport au milieu (20) du récipient.
  7. Unité métallurgique suivant l'une des revendications 1 à 6, caractérisée en ce que, lorsque l'unité métallurgique n'est pas basculée (position initiale), le fond (29) du canal (26) de liaison se trouve plus haut que le fond (25) du récipient (1) de fusion.
  8. Unité métallurgique suivant la revendication 7, caractérisée en ce que le fond (29) du canal (26) de liaison se trouve plus haut que le fond (25) du récipient (1) de fusion d'un montant qui permet, dans la position initiale de l'unité, de retenir dans la cuve (12) de four du récipient (1) de fusion une quantité de métal (13) liquide égale au moins à la moitié de la capacité du récipient (2) de traitement.
  9. Unité métallurgique suivant l'une des revendications 1 à 8, caractérisée en ce que, dans la position initiale de l'unité, le fond (24) du récipient (2) de traitement se trouve plus bas que le fond (25) du récipient (1) de fusion.
  10. Unité métallurgique suivant l'une des revendications 1 à 9, caractérisée en ce que le canal (26) de liaison est réalisé sous forme de goulotte ouverte vers le haut dans une paroi (28) de séparation en matériau réfractaire entre les deux récipients (1 et 2).
  11. Unité métallurgique suivant l'une des revendications 1 à 10, caractérisée en ce qu'un dispositif (33) de levage et de pivotement pour au moins une électrode (40) pouvant être sélectivement introduite dans le récipient (1) de fusion et dans le récipient (2) de traitement est disposé à côté de l'ensemble de construction constitué du récipient (1) de fusion et du récipient (2) de traitement.
  12. Unité métallurgique suivant l'une des revendications 1 à 11, caractérisée en ce que le dispositif (33) de levage et de pivotement pour l'électrode (40) est disposé sur un bâti (3) basculant qui porte l'ensemble de construction constitué du récipient (1) de fusion et du récipient (2) de traitement.
  13. Unité métallurgique suivant l'une des revendications 1 à 12, caractérisée en ce que des buses (40, 32) pour l'insufflation de gaz et de matières solides débouchent dans le récipient (1) de fusion et/ou dans le récipient (2) de traitement
  14. Unité métallurgique suivant l'une des revendications 1 à 13, caractérisée en ce que le couvercle (11) du récipient (1) de fusion est fixé dans une construction (35) de support, qui porte en même temps un puits conçu comme préchauffeur (34) de produit chargé, dont l'ouverture inférieure débouche dans l'espace intérieur du récipient (1) de fusion.
  15. Unité métallurgique suivant la revendication 14, caractérisée en ce que le préchauffeur (34) de produit chargé comporte des organes (37) de blocage, qui peuvent être déplacés d'une position de fermeture, pour retenir le produit chargé à l'intérieur du préchauffeur (34) de produit chargé, à une position de dégagement dans laquelle ils donnent libre passage au matériau de charge dans le préchauffeur de produit chargé.
EP95942719A 1994-12-21 1995-12-21 Unite metallurgique basculante constituee de plusieurs recipients Expired - Lifetime EP0799323B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4445783A DE4445783A1 (de) 1994-12-21 1994-12-21 Kippbares metallurgisches Aggregat
DE4445783 1994-12-21
PCT/EP1995/005072 WO1996019592A1 (fr) 1994-12-21 1995-12-21 Unite metallurgique basculante constituee de plusieurs recipients

Publications (2)

Publication Number Publication Date
EP0799323A1 EP0799323A1 (fr) 1997-10-08
EP0799323B1 true EP0799323B1 (fr) 1999-09-15

Family

ID=6536576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942719A Expired - Lifetime EP0799323B1 (fr) 1994-12-21 1995-12-21 Unite metallurgique basculante constituee de plusieurs recipients

Country Status (13)

Country Link
US (1) US5882578A (fr)
EP (1) EP0799323B1 (fr)
JP (1) JPH10510880A (fr)
CN (1) CN1043245C (fr)
AT (1) ATE184656T1 (fr)
AU (1) AU4388796A (fr)
BR (1) BR9510171A (fr)
CA (1) CA2208229A1 (fr)
DE (2) DE4445783A1 (fr)
DK (1) DK0799323T3 (fr)
ES (1) ES2135787T3 (fr)
GR (1) GR3031565T3 (fr)
WO (1) WO1996019592A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634348A1 (de) 1996-08-23 1998-02-26 Arcmet Tech Gmbh Einschmelzaggregat mit einem Lichtbogenofen
IT1289021B1 (it) * 1996-11-13 1998-09-25 Danieli Off Mecc Forno elettrico ad arco e relativo procedimento di fusione continua
LU90141B1 (de) * 1997-09-30 1999-03-31 Wurth Paul Sa Chargiergutvorwaermer
DE10355549A1 (de) * 2003-11-27 2005-06-23 Intracon Gmbh Chargiergutvorwärmer
CN103898337B (zh) * 2012-12-31 2016-08-24 保定安保能冶金设备有限公司 再生铝自动熔化铝铁分离工艺
CN103352123B (zh) * 2013-07-25 2015-05-20 西安电炉研究所有限公司 矿热精炼电炉热装生产设备及其生产工艺
DE102014115671A1 (de) * 2014-10-28 2016-05-12 Gerhard Fuchs Schmelzvorrichtung und schmelzverfahren
CN105202907B (zh) * 2015-10-30 2017-09-29 中冶赛迪工程技术股份有限公司 废钢预热型电弧炉及改善侧壁加料电弧炉加热冷区的方法
CN110257588B (zh) * 2019-07-04 2023-04-14 中冶京诚工程技术有限公司 一种液态金属冶炼系统及冶炼方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02290912A (ja) * 1989-04-28 1990-11-30 Daido Steel Co Ltd 溶解装置及び溶解方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US682512A (en) * 1900-07-16 1901-09-10 Wellman Seaver Engineering Company Open-hearth steel-furnace.
FR1482929A (fr) * 1966-04-01 1967-06-02 Siderurgie Fse Inst Rech Procédé d'élaboration d'un métal au four électrique
DE2504911C3 (de) * 1975-02-06 1978-12-14 Kloeckner-Werke Ag, 4100 Duisburg Vorrichtung zum Einschmelzen von Schrott, Eisenschwamm o.dgl
DE3322485A1 (de) * 1982-06-24 1983-12-29 British Steel Corp., London Vorrichtung und verfahren zur metallverarbeitung bzw. -veredelung
DE3412810A1 (de) * 1984-04-05 1985-10-17 Fried. Krupp Gmbh, 4300 Essen Einrichtung zum abgiessen eines herdofens
US4552343A (en) * 1985-05-13 1985-11-12 Insul Company, Inc. Combination electric furnace and slag retaining pouring spout
AT384669B (de) * 1986-03-17 1987-12-28 Voest Alpine Ag Anlage zur herstellung von stahl aus schrott
WO1990010086A2 (fr) * 1989-03-02 1990-09-07 Fuchs Technology Ag Agregat de fusion a puits de prechauffage des matieres chargees
US5471495A (en) * 1991-11-18 1995-11-28 Voest-Alpine Industrieanlagenbeau Gmbh Electric arc furnace arrangement for producing steel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02290912A (ja) * 1989-04-28 1990-11-30 Daido Steel Co Ltd 溶解装置及び溶解方法

Also Published As

Publication number Publication date
DE4445783A1 (de) 1996-06-27
JPH10510880A (ja) 1998-10-20
DE59506858D1 (de) 1999-10-21
CA2208229A1 (fr) 1996-06-27
EP0799323A1 (fr) 1997-10-08
CN1171136A (zh) 1998-01-21
GR3031565T3 (en) 2000-01-31
DK0799323T3 (da) 1999-12-20
US5882578A (en) 1999-03-16
ATE184656T1 (de) 1999-10-15
BR9510171A (pt) 1997-10-14
AU4388796A (en) 1996-07-10
CN1043245C (zh) 1999-05-05
WO1996019592A1 (fr) 1996-06-27
ES2135787T3 (es) 1999-11-01

Similar Documents

Publication Publication Date Title
EP0240485B1 (fr) Installation pour la fabrication d'acier de ferraille
EP0483322B1 (fr) Installation de fusion a deux fours de fusion adjacents
WO1981001862A1 (fr) Appareil de fusion et d'affinage pour la metallurgie
EP0946761A1 (fr) Installation et dispositif pour la production de metal en fusion
EP0548041A2 (fr) Four à arc électrique pour la production d'acier
DE69132590T3 (de) Raffinationsofen für Kupfer
EP0225939B1 (fr) Procédé pour fondre de la ferraille ou similaire et dispositif pour l'exécution du procédé
EP0487494B1 (fr) Installation pour la production de métaux fondus
DE1433431A1 (de) Schmelzofen zur Herstellung von Stahl und Verfahren zum Betrieb des Ofens
EP0799323B1 (fr) Unite metallurgique basculante constituee de plusieurs recipients
EP0820528B1 (fr) Procede et installation de production de fontes en fer selon le procede de fusion en zones multiples
DE8412739U1 (de) Lichtbogenofen mit Chargiergutvorwärmer
DE2735808C2 (de) Vorrichtung zum Schmelzen und Raffinieren von verunreinigtem Kupfer
DE10205660B4 (de) Verfarhen und Vorrichtung zur kontinuierlichen Stahlherstellung unter Einsatz von metallischen Einsatzmaterial
AT389896B (de) Verfahren zum kontinuierlichen schmelzen von schrott sowie vorrichtung zur durchfuehrung dieses verfahrens
EP0373378B1 (fr) Procédé pour le fonctionnement d'une unité de fusion et unité de fusion pour le procédé
DE60204221T2 (de) Verfahren zum herstellen von flüssigem roheisen in einem elektrischen ofen
EP0320673B1 (fr) Récipient métallurgique
AT394732B (de) Vorrichtung zum trennen von schlacke und stahl
EP1124995B1 (fr) Four electrique a courant continu incluyant une cuve centrale de chargement pour la production d'acier et procede pour produire de l'acier
EP0252308A1 (fr) Procédé de traitement de métaux liquides et dispositif pour la mise en oeuvre dudit procédé
AT403846B (de) Schrotteinschmelz-elektro-lichtbogenofen
DE102005007655A1 (de) Ofenanlage und Verfahren zum Einschmelzen von metallischen oder metallhaltigen Einsatzstoffen
EP0291680B1 (fr) Four à arc muni d'un espace de chargement sur le côté
DE2325593B1 (de) Kontinuierliche Stahlerzeugung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970721

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE

17Q First examination report despatched

Effective date: 19980428

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE

REF Corresponds to:

Ref document number: 184656

Country of ref document: AT

Date of ref document: 19991015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59506858

Country of ref document: DE

Date of ref document: 19991021

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2135787

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19991209

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 19991209

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011205

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20011211

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20011219

Year of fee payment: 7

Ref country code: DK

Payment date: 20011219

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20011220

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20011221

Year of fee payment: 7

Ref country code: AT

Payment date: 20011221

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20011224

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20011227

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20011228

Year of fee payment: 7

Ref country code: DE

Payment date: 20011228

Year of fee payment: 7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20020107

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020129

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021221

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021221

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030131

BERE Be: lapsed

Owner name: *ARCMET TECHNOLOGIE G.M.B.H.

Effective date: 20021231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030701

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030707

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20021221

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030901

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20030630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20021223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051221