EP0470223A1 - Unite metallurgique - Google Patents

Unite metallurgique

Info

Publication number
EP0470223A1
EP0470223A1 EP91904199A EP91904199A EP0470223A1 EP 0470223 A1 EP0470223 A1 EP 0470223A1 EP 91904199 A EP91904199 A EP 91904199A EP 91904199 A EP91904199 A EP 91904199A EP 0470223 A1 EP0470223 A1 EP 0470223A1
Authority
EP
European Patent Office
Prior art keywords
vessel
frame
unit according
metallurgical unit
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.)
Withdrawn
Application number
EP91904199A
Other languages
German (de)
English (en)
Inventor
Joachim Ehle
Gerhard Fuchs
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.)
Fuchs Technology AG
Original Assignee
Fuchs Technology AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuchs Technology AG filed Critical Fuchs Technology AG
Publication of EP0470223A1 publication Critical patent/EP0470223A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4686—Vehicles for supporting and transporting a converter vessel
    • 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
    • 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
    • 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
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F27D3/0027—Charging vertically with corbs
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the invention relates to a metallurgical unit with a tiltable vessel according to the preamble of claim 1.
  • a generic metallurgical unit designed as an arc furnace (DE-AS 1 758 776)
  • a furnace vessel is placed on a mobile support frame.
  • This structural unit can be tilted in the direction of travel of the supporting structure together with electrodes and an electrode holder for a tapping or a tapping of the melt.
  • the furnace vessel is connected to fixed bearing blocks via swivel joints.
  • the force required for tilting is applied via a piston / cylinder unit, which is rotatably fixed at one end to the furnace vessel and at the other end to a stationary bearing part.
  • Charging, tapping, slagging and maintenance of the vessel can be carried out at various points in the hall.
  • the vessel While in the known devices the vessel is supported directly on the mobile support frame, and so that this is included in the tipping process, in the unit according to the invention the vessel is fastened in a frame which is supported on the support frame by a frame lifting device.
  • the frame lifting device is designed so that it allows both lifting and lowering of the vessel and tilting. This is possible, for example, by means of lifting elements distributed around the circumference of the frame, which are preferably designed as hydraulically or pneumatically actuable piston / cylinder units.
  • the vessel can preferably be tilted transversely to the direction of travel of the supporting frame. This enables tipping operations for tapping and deslagging directly from the usual operating position, e.g. B. the position for melting a batch in a melting vessel. If necessary, that is Lower the vessel slightly beforehand using the frame lifting device if the vessel lid is fixed in place.
  • these movements can also be carried out at any point along the carriageway of the support frame, which increases the possible variations in charging, parting off, deslagging and servicing the vessel without additional effort. For example, it can be tapped into two pans located next to the carriageway if one is unable to hold the entire contents of the vessel.
  • the vessel can also be moved to an emergency pit in an emergency and emptied here. When the vessel is waiting outside the operating position, it can be raised, lowered and tilted, which makes it easier to spray out with a refractory compound.
  • the charging options can be improved in particular in connection with a shaft assigned to the vessel lid, as will be explained with the aid of the exemplary embodiment.
  • the vessel can be used as a melting vessel, e.g. B. be designed as an arc or reduction furnace, it can also be sin pan furnace, sin holding furnace, sin converter or the like.
  • FIG. 7 1 to 7 in different views as a metallurgical aggregate, namely a single-lubrication aggregate
  • Fig. 1 is a side view of the melting unit in the
  • Basic position of the vessel, 2 is a side view with a displaced vessel
  • Fig. 3 is the view III-III of Fig. 2, partially in
  • Fig. 5 is a plan view of the support frame of the furnace vessel.
  • Fig. 7 shows the Einschmlzzaggregat removed from the shaft
  • FIGS. 1 to 7 that in FIGS. 1 to 7 in different
  • the operating state shown in the smelting unit contains an arc furnace 1 and a shaft-shaped charging material preheater 2.
  • the arc furnace contains an oven vessel 3 from an oven range 4 and a vessel wall 5.
  • the oven vessel 3 is closed with a cover 6, through which three carried by support arms 7, by means of a lifting device, and pivoting device 8, electrodes 9 which can be raised and laterally pivoted can be moved into the furnace vessel. 1 and 2 only one electrode is shown for reasons of clarity.
  • the charge preheater 2 is arranged on the side of the furnace vessel 3.
  • the vessel wall 5 In the lower area of the charge preheater, which extends to the upper edge of the vessel wall 5, its outer walls are formed by the vessel wall 5.
  • the walls of the charge material preheater are formed by a shaft 10 which is fastened in a holding structure 27.
  • the vessel lid 6 In this holding construction, the vessel lid 6 is also releasably fixed in this embodiment. increases.
  • the top view of the furnace vessel 3 is designed as an oval delimited on one side by a straight line.
  • the straight wall section 11 forms, together with adjacent sections 12 of the oval, the shaft walls in the lower region of the charge preheater.
  • the walls of the shaft 10 are formed by water-cooled wall ducks for weight reasons.
  • the cross section of the interior 15 of the shaft 10 widens downward in order to ensure a trouble-free material flow of the charging material 16 in the shaft 10.
  • the shaft 10 is almost rectangular in plan view and continues upward the cross section of the charge material preheater 2 determined by the wall sections 11 and 12 of the furnace vessel 3. Between the charge preheater 2 and the arc furnace 1, a connecting zone 17 is formed, which extends over the clear height and the clear width of the furnace vessel in the imaginary common plane between the charge preheater and the arc furnace.
  • the charge preheater 2 has a closable loading opening 13 and a gas outlet 19.
  • the gas outlet 19 is connected via sin gas pipe 20 to the chimney or a preheating chamber, which is suitable for receiving a container or scrap basket filled with cargo.
  • the oven range 4 has an eccentrically arranged tap hole 21.
  • the vessel lid 6 and the shaft 10 are fixed in place by means of cantilever arms 59 on foundation columns 60 and the portal 8.
  • the furnace vessel 3 is fixed in an upper frame 61 which extends over a Frame lifting device 62 is supported on a support frame 63.
  • the support frame can be moved parallel to the connecting line between the center line of the shaft and the center of the oven, that is to say parallel to the axis 22 (see FIG. 4).
  • wheels 57 are provided in the supporting frame on the left side and on the right side, which run on rails 58.
  • the furnace vessel can be tilted transversely to the axis 22, specifically for parting off on one side, in which there is a tap hole 21 near the edge of the furnace range 4, and for unfastening on the other side, on which one can be locked by a liftable door
  • Working or slag opening 64 with a sheeting plate 65 is provided.
  • the upper frame 51 is cranked upwards on this side (compare dashed line in FIG. 1).
  • the upper frame 61 is cranked down (see dash-dot line in FIG. 1).
  • the support frame 63 is also designed in a special shape. It points. 5 shows, in plan view, two parallel cross members 67 and 68 and a longitudinal member 69 connecting them approximately in the middle.
  • the impellers 57 are each mounted in the end regions of the cross member 67 and in the central region of the cross member 68, two impellers 57 arranged at a distance from one another also being provided in the central region of the cross member 63. So that the rails for the wheels of the cross member 68 can also be laid in the middle, so that they do not hinder the pan on one side, nor the slag wagon on the other side.
  • the Frame lifting device 62 is formed by four lifting elements 70, 71 arranged on the circumference of the frame 61, namely in the region of the corners of the frame, which is approximately rectangular in plan view.
  • the lifting elements consist of hydraulically operated piston / cylinder units. However, you could also use other elements, such as toothed pinions and a rack that works with them. or consist of a screw drive.
  • Lifting elements are provided on both sides of the axis 22, the lifting elements 71 on the tapping side being pivotable both in the frame 61 and in the support frame 63 about axes of rotation parallel to the axis 22, while the lifting elements 70 are on the slag side (left side) 3, have a vertical guide and are only pivotably mounted in the upper frame 61 via an axis of rotation parallel to the axis 22.
  • the lifting elements 71 and the lifting elements 70 can each be controlled synchronously Parting off on one side and tilting to the other side by synchronously lowering the lifting elements 70. All will
  • the vertical guidance of the lifting elements 70 is achieved in the illustrated case in that the hydraulic cylinders are held in tubes 72 which are firmly connected to the support frame 63.
  • a cover in order to introduce the charge goods from a charge goods container 73 via the shaft 10 into the right half, that is to say into the half of the furnace vessel located on the side of the electrode lifting device. This position is shown in broken lines in FIG. 4.
  • a cover can be provided here in a horizontal extension of the vessel lid (to the left in FIG. 2), for example a cover aligned with the lower edge of the lid and on this or otherwise attached cover plate.
  • the furnace vessel is then moved back into the starting position shown in FIG. 1 and raised so far that the desired closure between the furnace vessel and the vessel lid is ensured. In this position, further charge material is drawn through the shaft 10 and a scrap column is built up in the shaft, which is supported on the bottom of the vessel and in the left region of the vessel wall.
  • the manhole cover 74 which has the cross section shown in FIG. 1 in the form of an inverted U, and is horizontally displaceable on rails 75.
  • the next batch of furnace is melted down and the scrap column is preheated by the furnace gases.
  • the horizontal movability of the furnace vessel naturally also allows the arc electrodes to be brought closer to the charge column during the melting process in order to accelerate the melting process here (to the right in Fig. 2) is provided.
  • Escaping furnace gases during tapping can be braked, for example, by a chain apron 76.
  • the gases escaping when tipping can also be extracted through a fixed collecting hood.
  • the vessel lid 6 is detachably fastened in the support structure 27 of the shaft, which is supported on the foundation columns 60, so that after loosening this attachment, the vessel lid, as shown in FIG. 7, by simultaneous lowering of the lifting elements lying on the upper edge of the vessel, and with the furnace vessel out of the area of the shaft 10 (to the left in the illustration according to FIG. 1), and removed and replaced by a crane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Unité métallurgique possédant une cuve (3) basculable s'appuyant sur un cadre porteur (63) mobile, où la cuve est fixée dans un bâti (41) s'appuyant sur un dispositif de levage (62) situé sur le cadre porteur (63). Ceci permet d'effectuer les mouvements de levage et de basculement de la cuve à différentes positions situées le long du dépalcement du cadre porteur (63) et d'améliorer les possibilités de variations de chargement, de soutirage et d'entretien de la cuve.
EP91904199A 1990-02-28 1991-02-28 Unite metallurgique Withdrawn EP0470223A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4006281A DE4006281A1 (de) 1990-02-28 1990-02-28 Metallurgisches aggregat
DE4006281 1990-02-28

Publications (1)

Publication Number Publication Date
EP0470223A1 true EP0470223A1 (fr) 1992-02-12

Family

ID=6401130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91904199A Withdrawn EP0470223A1 (fr) 1990-02-28 1991-02-28 Unite metallurgique

Country Status (7)

Country Link
EP (1) EP0470223A1 (fr)
BR (1) BR9104670A (fr)
CA (1) CA2053912A1 (fr)
DE (1) DE4006281A1 (fr)
RU (1) RU2058002C1 (fr)
WO (1) WO1991013305A1 (fr)
ZA (1) ZA911346B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138118A1 (de) * 1991-11-19 1993-05-27 Fuchs Systemtechnik Gmbh Verfahren und vorrichtung zur stahlherstellung aus metallischem einsatzmaterial
DE4240667C2 (de) * 1992-11-24 1996-05-09 Mannesmann Ag Stahlwerksanlage mit einem an einem ringförmigen Tragelement befestigten metallurgischen Gefäß
DE19526704C1 (de) * 1995-07-24 1997-05-07 Asea Brown Boveri Einschmelzaggregat
DE19634348A1 (de) 1996-08-23 1998-02-26 Arcmet Tech Gmbh Einschmelzaggregat mit einem Lichtbogenofen
IT1289008B1 (it) * 1996-10-21 1998-09-25 Danieli Off Mecc Dispositivo di supporto e basculamento del tino in un forno elettrico
DE19925550A1 (de) * 1999-06-04 2000-12-07 Sms Demag Ag Verfahren und Vorrichtung zum Entleeren von metallurgischen Schmelzgefäßen durch Kippen
DE10009812A1 (de) * 2000-03-01 2001-09-06 Sms Demag Ag Anlage zur Herstellung von Stahl
DE102011075003C5 (de) * 2011-04-29 2017-06-01 Primetals Technologies Germany Gmbh Elektroschmelzofen
DE102011083822B3 (de) * 2011-09-30 2012-12-06 Siemens Aktiengesellschaft Lichtbogenofen mit auf Schienen verfahrbarem Wiegerahmen
CN104180665B (zh) * 2014-08-19 2015-08-26 苏州汇科机电设备有限公司 电子窑炉自动化生产线用的匣钵盖自动移除装置
DE102018220594A1 (de) * 2018-11-29 2020-06-04 Sms Group Gmbh Vorrichtung und Verfahren zum Halten eines Elektrodentragarms

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE638867C (de) * 1936-11-24 Demag Elektrostahl G M B H Elektroschmelzofen
DE729569C (de) * 1938-02-11 1943-01-07 Krupp Ag Lichtbogenofen
DE1758776B1 (de) * 1968-08-05 1971-09-08 Demag Elektrometallurgie Gmbh Elektrischer Lichtbogenschmelzofen
DE2109530B2 (en) * 1971-03-01 1972-06-08 Aeg-Elotherm Gmbh, 5630 Remscheid Tiltable induction melting crucible - can be tilted in two directions at right angles to each other
US3807944A (en) * 1972-12-20 1974-04-30 Pullman Inc High temperature refractory furnace
CH635920A5 (de) * 1978-09-28 1983-04-29 Bbc Brown Boveri & Cie Kippanordnung fuer einen auf abwaelzwiegen angeordneten ofen.
DE3165093D1 (en) * 1980-10-09 1984-08-30 Bbc Brown Boveri & Cie Tiltable electric-arc furnace
DE3308486C2 (de) * 1983-03-10 1985-04-04 Mannesmann AG, 4000 Düsseldorf Auf kippbarem Rahmen verfahrbarer Lichtbogenofen
DE3421485A1 (de) * 1984-06-08 1985-12-12 Fuchs Systemtechnik GmbH, 7601 Willstätt Lichtbogenofen mit einem auf einer seite des ofengefaesses vorgesehenen aufnahmeraum fuer chargiergut
FR2591725B1 (fr) * 1985-12-13 1989-11-24 Clecim Sa Procede et installation d'entretien du revetement d'une cuve de four
DE3840486A1 (de) * 1988-12-01 1990-06-07 Mannesmann Ag Ofenanlage zum einschmelzen von schrott
CA2028108C (fr) * 1989-03-02 1994-12-06 Joachim Ehle Fonderie equipee d'un prechauffeur de type a arbre pour matieres chargees

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9113305A1 *

Also Published As

Publication number Publication date
DE4006281A1 (de) 1991-08-29
RU2058002C1 (ru) 1996-04-10
BR9104670A (pt) 1992-03-24
WO1991013305A1 (fr) 1991-09-05
ZA911346B (en) 1991-11-27
CA2053912A1 (fr) 1991-08-29

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