EP0799323B1 - Kippbares metallurgisches aggregat bestehend aus mehreren gefässen - Google Patents
Kippbares metallurgisches aggregat bestehend aus mehreren gefässen Download PDFInfo
- 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
Links
- 238000002844 melting Methods 0.000 claims abstract description 85
- 230000008018 melting Effects 0.000 claims abstract description 85
- 239000002184 metal Substances 0.000 claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000003723 Smelting Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 239000000155 melt Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000000717 retained effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010309 melting process Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241001156002 Anthonomus pomorum Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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.
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- 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)
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Description
- Fig. 1
- eine Draufsicht auf das metallurgische Aggregat gemäß dieser Erfindung,
- Fig. 2
- den Schnitt II-II von Figur 1
- Fig. 3
- den Schnitt III-III von Figur 2
- Fig. 4
- den Schnitt IV-IV von Figur 1
- Fig. 5
- den Schnitt V-V von Figur 1 und
- Fig. 6
- den Schnitt VI-VI von Figur 1.
Claims (15)
- Metallurgisches Aggregat zum Einschmelzen von metallischem Einsatzmaterial und zum Nachbehandeln der Metallschmelze, das aus einer Ausgangsposition in eine positive Kipprichtung (8) um eine Kippachse (7) kippbar oder längs einer Wälzbahn (4) abwälzbar ist, enthaltenda) ein mit einer Chargieröffnung (10) zum Einbringen des Einsatzmaterials versehenes Schmelzgefäß (1), das einen Ofenherd (12) zur Aufnahme der Metallschmelze (13) enthält, in dessen Seitenwand eine Abflußöffnung (15) zur Entnahme der Metallschmelze (13) aus dem Ofenherd, beim Kippen des Aggregats angeordnet ist,b) eine dem Schmelzgefäß zugeordnete erste Heizeinrichtung (30, 38) zum Einschmelzen des Einsatzmaterials,c) ein seitlich am Schmelzgefäß angebrachtes Behandlungsgefäß (2), zur Aufnahme der Metallschmelze aus dem Ofenherd (12) des Schmelzgefäßes (1) und zur metallurgischen Behandlung, das eine Eintrittsöffnung (22) für die Metallschmelze und eine Abstichöffnung (18) enthält,d) eine dem Behandlungsgefäß zugeordnete zweite Heizeinrichtung (38) zur metallurgischen Behandlung der Schmelze, unde) einen die Abflußöffnung (15) des Schmelzgefäßes (1) mit der Eintrittsöffnung (22) des Behandlungsgefäßes (2) verbindenden Kanal (26), über den die beim Kippen des Aggregats in positiver Kipprichtung (8) aus der Abflußöffnung (15) des Schmelzgefäßes (1) abfließende Metallschmelze (13) in das Behandlungsgefäß (2) überführbar ist, wobei in der Draufsicht die Verbindungslinie (23) vom Gefäßmittelpunkt (17) des Schmelzgefäßes (1) zum Gefäßmittelpunkt (20) des Behandlungsgefäßes (2) gegenüber der positiven Kipprichtung (8) des Aggregats einen spitzen Winkel (α) einschließt.
- Metallurgisches Aggregat nach Anspruch 1, dadurch gekennzeichnet, daß es zum Entfernen der Schlacke in einer zur positiven Kipprichtung (8) entgegengesetzten negativen Kipprichtung (9) kippbar bzw. abwälzbar ist.
- Metallurgisches Aggregat nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß in der Draufsicht eine zur positiven Kipprichtung (8) durch den Mittelpunkt (17) des Schmelzgefäßes (1) gezogene Linie dessen Gefäßwand im Bereich der Ausflußöffnung (15) schneidet.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Gefäßwand des Schmelzgefäßes (1) auf der der Abflußöffnung (15) gegenüberliegenden Seite eine Arbeitsöffnung (16) aufweist.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Abstichöffnung (18) des Behandlungsgefäßes (2), bezogen auf die positive Kipprichtung (8) exzentrisch im äußeren Randbereich des Bodens (24) des Behandlungsgefäßes (2) angeordnet ist.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß bezogen auf die Gefäßmitte (29) die Gefäßwand des Behandlungsgefäßes (2) in negativer Kipprichtung (9) eine Arbeitsöffnung (21) aufweist.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß im nichtgekippten Zustand (Ausgangsposition) des metallurgischen Aggregats die Sohle (29) des Verbindungskanals (26) höher liegt als der Gefäßboden (25) des Schmelzgefäßes (1).
- Metallurgisches Aggregat nach Anspruch 7, dadurch gekennzeichnet, daß die Sohle (29) des Verbindungskanals (26) gegenüber dem Gefäßboden (25) des Schmelzgefäßes (1) um einen Betrag höher liegt, der in der Ausgangsposition des Aggregats ein Zurückhalten der Schmelze (13) im Ofenherd (12) des Schmelzgefäßes (1) von wenigstens dem halben Fassungsvermögen des Behandlungsgefäßes (2) ermöglicht.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß in der Ausgangsposition des Aggregates der Gefäßboden (24) des Behandlungsgefäßes (2) tiefer liegt als der Gefäßboden (25) des Schmelzgefäßes (1).
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, däß der Verbindungskanal (26) als eine nach oben hin offene Rinne in einer aus feuerfestem Material bestehenden Trennwand (28) zwischen den beiden Gefäßen (1 und 2) ausgebildet ist.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß neben der konstruktiven Einheit aus Schmelzgefäß (1) und Behandlungsgefäß (2) eine Hub- und Schwenkvorrichtung (33) für wenigstens eine Elektrode (40) angeordnet ist, die wahlweise in das Schmelzgefäß (1) und das Behandlungsgefäß (2) einführbar ist.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, däß die Hub- und Schwenkvorrichtung (33) für die Elektrode (40) auf einem die konstruktive Einheit aus Schmelzgefäß (1) und Behandlungsgefäß (2) tragenden kippbaren Rahmen (3) angeordnet ist.
- Metallurgisches Aggregat nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß in das Schmelzgefäß (1) und/oder das Behandlungsgefäß (2) Düsen (40, 32) zum Einblasen von Gasen und Feststoffen münden.
- Metallurgisches Aggregat nach einem der Anspruche 1 bis 13, dadurch gekennzeichnet, däß der Deckel (11) des Schmelzgefäßes (1) in einer Haltekonstruktion (35) befestigt ist, die zugleich einen als Chargiergutvorwärmer (34) ausgebildeten Schacht trägt, dessen untere Öffnung in den Innenraum des Schmelzgefäßes (1) mündet.
- Metallurgisches Aggregat nach Anspruch 14, dadurch gekennzeichnet, daß der Chariergutvorwärmer (34) Sperrorgane (37) aufweist, die aus einer Schließstellung zum Festhalten von Chargiergut im Innenraum des Chargiergutvorwärmers (34) in eine Freigabestellung bewegbar sind, in der sie den Durchtritt für das Einsatzmaterial durch den Chargiergutvorwärmer freigeben.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4445783 | 1994-12-21 | ||
DE4445783A DE4445783A1 (de) | 1994-12-21 | 1994-12-21 | Kippbares metallurgisches Aggregat |
PCT/EP1995/005072 WO1996019592A1 (de) | 1994-12-21 | 1995-12-21 | Kippbares metallurgisches aggregat bestehend aus mehreren gefässen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0799323A1 EP0799323A1 (de) | 1997-10-08 |
EP0799323B1 true EP0799323B1 (de) | 1999-09-15 |
Family
ID=6536576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95942719A Expired - Lifetime EP0799323B1 (de) | 1994-12-21 | 1995-12-21 | Kippbares metallurgisches aggregat bestehend aus mehreren gefässen |
Country Status (13)
Country | Link |
---|---|
US (1) | US5882578A (de) |
EP (1) | EP0799323B1 (de) |
JP (1) | JPH10510880A (de) |
CN (1) | CN1043245C (de) |
AT (1) | ATE184656T1 (de) |
AU (1) | AU4388796A (de) |
BR (1) | BR9510171A (de) |
CA (1) | CA2208229A1 (de) |
DE (2) | DE4445783A1 (de) |
DK (1) | DK0799323T3 (de) |
ES (1) | ES2135787T3 (de) |
GR (1) | GR3031565T3 (de) |
WO (1) | WO1996019592A1 (de) |
Families Citing this family (9)
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)
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)
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 |
CA2028108C (en) * | 1989-03-02 | 1994-12-06 | Joachim Ehle | Melting aggregate with shaft for preheating charged materials |
US5471495A (en) * | 1991-11-18 | 1995-11-28 | Voest-Alpine Industrieanlagenbeau Gmbh | Electric arc furnace arrangement for producing steel |
-
1994
- 1994-12-21 DE DE4445783A patent/DE4445783A1/de not_active Withdrawn
-
1995
- 1995-12-21 CN CN95197022A patent/CN1043245C/zh not_active Expired - Fee Related
- 1995-12-21 BR BR9510171A patent/BR9510171A/pt not_active IP Right Cessation
- 1995-12-21 US US08/849,484 patent/US5882578A/en not_active Expired - Fee Related
- 1995-12-21 CA CA002208229A patent/CA2208229A1/en not_active Abandoned
- 1995-12-21 DK DK95942719T patent/DK0799323T3/da active
- 1995-12-21 AU AU43887/96A patent/AU4388796A/en not_active Abandoned
- 1995-12-21 AT AT95942719T patent/ATE184656T1/de not_active IP Right Cessation
- 1995-12-21 DE DE59506858T patent/DE59506858D1/de not_active Expired - Fee Related
- 1995-12-21 WO PCT/EP1995/005072 patent/WO1996019592A1/de not_active Application Discontinuation
- 1995-12-21 ES ES95942719T patent/ES2135787T3/es not_active Expired - Lifetime
- 1995-12-21 EP EP95942719A patent/EP0799323B1/de not_active Expired - Lifetime
- 1995-12-21 JP JP8519520A patent/JPH10510880A/ja active Pending
-
1999
- 1999-10-18 GR GR990402659T patent/GR3031565T3/el unknown
Patent Citations (1)
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 |
---|---|
CN1043245C (zh) | 1999-05-05 |
DE59506858D1 (de) | 1999-10-21 |
DE4445783A1 (de) | 1996-06-27 |
DK0799323T3 (da) | 1999-12-20 |
ATE184656T1 (de) | 1999-10-15 |
CN1171136A (zh) | 1998-01-21 |
EP0799323A1 (de) | 1997-10-08 |
AU4388796A (en) | 1996-07-10 |
BR9510171A (pt) | 1997-10-14 |
WO1996019592A1 (de) | 1996-06-27 |
ES2135787T3 (es) | 1999-11-01 |
CA2208229A1 (en) | 1996-06-27 |
US5882578A (en) | 1999-03-16 |
JPH10510880A (ja) | 1998-10-20 |
GR3031565T3 (en) | 2000-01-31 |
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