EP3581664B1 - Dispositif comprenant un récipient métallurgique - Google Patents

Dispositif comprenant un récipient métallurgique Download PDF

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Publication number
EP3581664B1
EP3581664B1 EP19178308.3A EP19178308A EP3581664B1 EP 3581664 B1 EP3581664 B1 EP 3581664B1 EP 19178308 A EP19178308 A EP 19178308A EP 3581664 B1 EP3581664 B1 EP 3581664B1
Authority
EP
European Patent Office
Prior art keywords
bearing
lifting
drive
stand
lifting device
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.)
Active
Application number
EP19178308.3A
Other languages
German (de)
English (en)
Other versions
EP3581664A1 (fr
Inventor
Frank Wagener
Steffen KRAUSA
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.)
SMS Group GmbH
Original Assignee
SMS Group 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=66770281&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3581664(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3581664A1 publication Critical patent/EP3581664A1/fr
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Classifications

    • 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
    • F27D3/12—Travelling or movable supports or containers for the charge
    • 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
    • C21C5/4633—Supporting means
    • C21C5/464—Trunnion bearings
    • 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
    • F27B14/00—Crucible or pot furnaces
    • F27B14/02—Crucible or pot furnaces with tilting or rocking arrangements
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D2099/0085—Accessories
    • F27D2099/0098—Means for moving the furnace

Definitions

  • the invention relates to a device comprising a metallurgical vessel which is mounted pivotably about a horizontal axis, the vessel having two support pins which extend therefrom on two opposite sides of the vessel, each of the two support pins being received by a bearing, wherein the bearing is received in a bearing holder and wherein the bearing holder is arranged on a stationary bearing stand or on a foundation.
  • Metallurgical vessels of this type are, for example, pivotable converters which are mounted in bearings that are subject to corresponding wear; regular maintenance is also required. If such a bearing for mounting the converter is worn out, the bearing, which is usually designed as a roller bearing, is opened (in some cases sliding bearings are also used here), or more precisely the bearing housing that accommodates the bearing. The converter system is lifted with a device to release the system from the bearing housings.
  • a stud frame is built in the converter pit that extends from the bottom of the pit to the bottom of the support ring or the converter. Hydraulic cylinders that lift the system are attached to the stand. For this purpose, a hydraulic lifting tool can also be positioned under the gearbox for the swivel drive of the converter to support the gearbox.
  • Generic bearings are for example in the DE 10 2005 012 601 B2 , in the DE 10 2014 219 307 B3 , in the DE 20 2007 005 054 U1 , in the DE 66 05 434 , in the NL 275 680 A and in the GB 1 038 886 A described or mentioned.
  • the JP S58 207309 A and the US 2007/278722 A1 show metallurgical vessels that are lifted on support pins by means of a lifting device.
  • the worn bearing When the system is raised, the worn bearing is inspected, serviced or removed and replaced with a new bearing, which can be split or undivided. When maintenance is required, the bearing is often rotated to a different position on the journal.
  • the invention is therefore based on the object of developing a device of the type mentioned at the beginning in such a way that it becomes possible to significantly reduce the effort involved in changing or servicing worn bearings.
  • the time that has to be set for changing bearings should be significantly reduced.
  • This is also intended to provide an alternative solution for changing a bearing or maintaining it, compared with the previously known measures as set out above. In the same way, in the case of maintenance work or inspections, it should be made possible to carry out these more effectively and faster and therefore more cost-effectively.
  • the solution to this problem by the invention is characterized in that a lifting device is arranged directly or indirectly on each storage stand, which is designed to raise the support pin for changing the bearing in the vertical direction from the bearing stand by a lifting amount.
  • the lifting device can be accommodated directly in the bearing stand, making it independent of the bearing housing.
  • the lifting device preferably has a lifting shell (lifting element) which, on its side facing the support pin, has a shape congruent to the shape of the support pin. This is mostly a cylindrical shape in sections that corresponds to the shape of the support pin.
  • the lifting device preferably has at least one hydraulic piston-cylinder element for generating a lifting movement.
  • the lifting device is preferably designed to lift the support pin together with the bearing and bearing holder relative to the bearing stand.
  • the bearing holder is preferably a bearing housing.
  • the lifting device can be detachably arranged on the bearing stand, although a fixed arrangement can also be provided.
  • a further development provides that a drive is present for driving at least one of the carrier pins, which is connected to the carrier pin, wherein a further lifting device is preferably arranged which is designed to raise the drive in the vertical direction by a lifting amount.
  • means can be arranged which can be arranged on the drive in order to prevent or limit a tilting movement of the drive about the horizontal axis.
  • These means can comprise at least one sheet metal attached to the storage stand or to a foundation, which for at least one bolt, which is arranged on the drive, enables displacement in the vertical direction and prevents or at least limits movement in the horizontal direction.
  • the sheet metal can preferably have at least one elongated hole in which the bolt can move in the vertical direction.
  • the present invention is preferably used in converter steelworks. In principle, it is based on a bearing housing with a system lifting device.
  • a raised and lowered bracket (lifting device) is accordingly placed immediately next to the bearing, which bracket preferably has the contour of the bearing journal.
  • sleeves and other components in the area of the lifting bracket and the bearing covers are removed.
  • the consoles are raised on the fixed and floating bearing side.
  • the drive can also be supported by a hydraulic lifting tool. The dampers of the torque arm must be released from the gearbox housing.
  • a guide for the transmission can be provided in the area where the dampers of the torque support are received.
  • Panels with vertically oriented slots can be permanently attached to the side of the gear unit (drive).
  • the mounting bolts of the dampers can be removed through the holes before the lifting process. In their place, a longer bolt can be inserted that extends beyond the gear housing into the elongated holes in the metal sheets. Here these lie on the side and prevent the system from tipping over.
  • the brakes of the drive should be engaged.
  • the bearing housing can be designed as a welded component. Training as cast parts is of course also possible.
  • the aforementioned stationary storage stand can also be a direct foundation for the system.
  • the proposed device is advantageously used for maintenance, service and inspection of the system.
  • the device it is possible in particular for the device to be integrated into the system so that it is available at any time when required.
  • a device 1 which comprises a metallurgical vessel 2 in the form of a converter.
  • the converter 2 is arranged to be pivotable about a horizontal axis a.
  • the converter 2 has a support pin 3 in each of two opposite side areas, as well as a support ring 17.
  • Each support pin 3 is mounted in a roller bearing 4.
  • the roller bearing 4 is in turn accommodated in a bearing holder 5 (bearing housing), the bearing holders 5 resting on a bearing stand 6.
  • the storage stand 6 is arranged on a foundation 13.
  • the bearing housing or an independent system lifting device can also be attached directly to a foundation.
  • the invention provides that a lifting device 7 is arranged on each bearing stand 6.
  • the lifting device 7 is designed to lift the support pin 3 in the vertical direction V from the bearing stand 6 by a lifting amount h (see FIG Figure 3 ) to raise.
  • the lifting device 7 comprises a lifting shell 8 which can be raised relative to a base part by means of two piston-cylinder elements 9.
  • the lifting shell 8 here has a shape F which is adapted to that of the support pin 3. This is a partially cylindrical shape which corresponds to the radius of the support pin 3.
  • the support pin 3 and thus the entire vessel 2 can be raised in the vertical direction V by such a lifting amount h that the bearing 4 together with the bearing housing 5 lifts off the bearing stand 6 and is accessible for a bearing change.
  • the converter 2 is lifted or to make the bearing 4 accessible, only one lifting device 7 per side or per support pin 3 is required.
  • a drive 10 (gear) is provided, which is also raised by the aforementioned lifting amount h for the purpose of changing bearings.
  • a further lifting device 11 is arranged in the bottom area of the drive 10, which lifts the drive.
  • the drive 10 is prevented from moving in its bottom area in a manner known per se with dampers 18 and is damped in this.
  • the dampers 18 are articulated in the bottom area of the drive 10 with this or with adjacent components.
  • means 12 which comprise metal sheets 14 which are permanently fastened in the bottom area of the drive 10 on the bearing stand 6 or on the foundation 13.
  • the metal sheets 14 have elongated holes 16 which extend in the vertical direction V.
  • elongated bolts 15 are used, which are provided for guidance in the metal sheets 14 and which have freedom of movement in the vertical direction V within the framework of the elongated holes 16. These bolts 15 result in a guidance of the lower area of the drive 10 when it is raised by the lifting device 11.
  • the bolts 15 are lengthened in this respect in Figure 4a evident; they extend through the area of the elongated holes 16 in the metal sheets 14.
  • the lifting of the vessel 2 at least with the two lifting devices 7, supported in the given case also by the lifting device 11, is thus possible in a simple manner, for which only a small device-related effort has to be made. Nevertheless, the bearing 4 or the bearing housing 5 is exposed to such an extent that bearing replacement or bearing maintenance can be carried out without any problems.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Claims (10)

  1. Dispositif (1) comprenant une cuve métallurgique (2) qui est montée en pivotement autour d'un axe horizontal (a) ; dans lequel la cuve métallurgique (2) présente deux tourillons de support (3) qui s'étendent, sur deux côtés opposés de la cuve métallique (2), à partir de cette dernière ; dans lequel chacun des deux tourillons de support (3) vient se loger dans un palier (4) ; dans lequel le palier (4) vient se loger dans un dispositif de maintien de palier (5) ; et dans lequel le dispositif de maintien de palier (5) est disposé sur un socle (6) destiné au palier qui est monté à demeure ou sur une fondation ;
    caractérisé
    en ce que, sur chaque socle (6) destiné au palier est disposé, de manière directe ou de manière indirecte, un dispositif de levage (7) qui est réalisé dans le but de soulever, à concurrence d'un tronçon de course (h), le tourillon de support (3), à des fins d'échange du palier (4), dans la direction verticale (V), par rapport au socle (6) destiné au palier.
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de levage présente un plateau de levage (8) qui présente, sur son côté qui est tourné vers le tourillon de support (3), une forme (F) qui est congruente par rapport à la forme du tourillon de support (3).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le dispositif de levage présente au moins un élément hydraulique (9) du type à piston-cylindre qui est prévu pour la génération d'un mouvement de levage.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le dispositif de levage (7) est réalisé pour soulever le tourillon de support (3) de manière conjointe avec le palier (4) et avec le dispositif de maintien de palier (5) par rapport au socle (6) destiné au palier.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de maintien de palier (5) représente un logement de palier.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif de levage (7) est disposé de manière amovible sur le socle (6) destiné au palier.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, à des fins d'entraînement d'au moins un des tourillons de support (3), on prévoit une commande (10) qui est reliée au tourillon de support (3) ; dans lequel, de préférence, est disposé un dispositif de levage supplémentaire (11) qui est réalisé pour soulever la commande (10) dans la direction verticale (V) à concurrence d'un tronçon de levage (h).
  8. Dispositif selon la revendication 7, caractérisé en ce que sont disposés des moyens (12), qui peuvent être disposés ou qui sont disposés contre la commande (10), et qui sont là pour empêcher ou pour limiter un mouvement de basculement de la commande (10) autour de l'axe horizontal (a).
  9. Dispositif selon la revendication 8, caractérisé en ce que les moyens (12) comprennent au moins une tôle (14) fixée au socle (6) destiné au palier ou fixée à une fondation (13), tôle qui, pour au moins un boulon (15) qui est disposé contre la commande (10), permet d'obtenir un déplacement dans la direction verticale (V) et empêche ou à tout le moins limite un mouvement dans la direction horizontale.
  10. Dispositif selon la revendication 9, caractérisé en ce que la tôle (14) présente au moins un trou oblong (16) dans lequel le boulon (15) peut se déplacer dans la direction verticale (V).
EP19178308.3A 2018-06-11 2019-06-05 Dispositif comprenant un récipient métallurgique Active EP3581664B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018209222.2A DE102018209222A1 (de) 2018-06-11 2018-06-11 Vorrichtung, umfassend ein metallurgisches Gefäß

Publications (2)

Publication Number Publication Date
EP3581664A1 EP3581664A1 (fr) 2019-12-18
EP3581664B1 true EP3581664B1 (fr) 2020-11-18

Family

ID=66770281

Family Applications (1)

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EP19178308.3A Active EP3581664B1 (fr) 2018-06-11 2019-06-05 Dispositif comprenant un récipient métallurgique

Country Status (2)

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EP (1) EP3581664B1 (fr)
DE (1) DE102018209222A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201296A1 (de) 1971-01-28 1972-08-17 Voest Ag Hydraulischer Kippantrieb fuer ein metallurgisches Gefaess
JPS55110832U (fr) 1979-01-31 1980-08-04
DE3115821A1 (de) 1981-04-18 1982-10-28 Mannesmann AG, 4000 Düsseldorf "kippantrieb fuer metallurgische gefaesse, insbesondere stahlwerkskonverterkippantrieb"
US7128292B1 (en) 2005-10-10 2006-10-31 Mitchum Leonard L Device for lifting paper rolls

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275680A (fr) *
LU44607A1 (fr) * 1962-11-08 1963-12-11
AT274870B (de) 1966-10-11 1969-10-10 Voest Ag Lagerkonstruktion für kippbare Tiegel oder Konverter
JPS55145B2 (fr) * 1975-10-29 1980-01-05
JPS58207309A (ja) * 1982-05-28 1983-12-02 Kawasaki Steel Corp 溶鋼鍋の昇降装置
DE8224282U1 (de) * 1982-06-07 1982-12-02 Georg Fischer AG, 8201 Schaffhausen Giesseinrichtung, insbesondere konverter zum vergiessen und/oder zum nachbehandeln von geschmolzenem material
DE3532763A1 (de) * 1984-09-15 1986-03-27 Gebr. Wöhr GmbH und Co KG, 7080 Aalen Verfahren und vorrichtung zum automatischen vergiessen von fluessigem metall
DE102005012601B4 (de) 2005-03-18 2008-11-13 Ab Skf Lageranordnung
DE102006026330B3 (de) * 2006-06-02 2007-10-31 Vai Fuchs Gmbh Hubwerk für Stahlbehandlungspfannen in RH-Anlagen
DE202007005054U1 (de) 2007-04-05 2007-08-02 Ab Skf Lagervorrichtung mit wenigstens einem Loslager
DE102014219307B3 (de) 2014-09-24 2016-01-07 Aktiebolaget Skf Vorrichtung zum Demontieren eines Lagerrings
DE102016209238A1 (de) * 2016-05-27 2017-11-30 Sms Group Gmbh Vorrichtung und Verfahren zum Erfassen einer Förderrate eines flüssigen Materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201296A1 (de) 1971-01-28 1972-08-17 Voest Ag Hydraulischer Kippantrieb fuer ein metallurgisches Gefaess
JPS55110832U (fr) 1979-01-31 1980-08-04
DE3115821A1 (de) 1981-04-18 1982-10-28 Mannesmann AG, 4000 Düsseldorf "kippantrieb fuer metallurgische gefaesse, insbesondere stahlwerkskonverterkippantrieb"
US7128292B1 (en) 2005-10-10 2006-10-31 Mitchum Leonard L Device for lifting paper rolls

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
"Dubbel Taschenbuch für den Maschinenbau 14", 1 January 1981, article BEITZ W, ET AL: "Fördertechnik", pages: 1122 - 1122, XP055839102
"Lagerungen und Service für die Stahl- und Aluminiumproduktion Unsere Kompetenz - Ihr Vorteil", 1 July 2012, SCHAEFFLER, article ANONYMOUS: "Das Unternehmen Mit Wissen und Erfahrung", pages: 2 - 11, XP055839090
"LUEGER Lexikon der Technik, Lexikon der Hüttentechnik 5", 1 January 1963, article GROTHE HANS, ET AL: "Kontaktmassen", pages: 326 - 331, XP055839096
"StahlFibel Herausgegeben vom Verein Deutscher Eissenhüttenleute", 1 January 2002, STAHLEISEN, article ANONYMOUS: "Stahlerzeugung", pages: 51 - 61, XP055839099
ANONYMOUS: "NSK tauscht Pendelrollenlager an Konverter gegen geteiltes Lager, NSK Deutschland GmbH, Pressemitteilung", PRESSEBOX, 7 March 2016 (2016-03-07), pages 1 - 3, XP055839105, Retrieved from the Internet <URL:https://www.pressebox.de/inaktiv/nsk-deutschland-gmbh/NSK-tauscht-Pendelrollenlager-an-Konverter-gegen-geteiltes-Lager/boxid/784211> [retrieved on 20210908]
ANONYMOUS: "Schaeffler: FAG split spherical roller bearings – simple and quick to mount", AUTOMOTIVE WORLD, 10 July 2013 (2013-07-10), pages 1 - 2, XP055839113, Retrieved from the Internet <URL:https://www.automotiveworld.com/news-releases/schaeffler-fag-split-spherical-roller-bearings-simple-and-quick-to-mount/> [retrieved on 20210908]
ANONYMOUS: "Τεχνικές Υπηρεσίες - SKAMA - Ε. ΣΚΑΖΙΚΗΣ & Λ. ΜΑΡΑΓΚΟΣ Α.Ε.", SKAMA, 25 October 2014 (2014-10-25), pages 1 - 2, XP055839088, Retrieved from the Internet <URL:https://www.skama.gr/texnikes-ipiresies.aspx> [retrieved on 20210908]
NANONYMOUS: "Mounting Instructions for FAG Split Spherical Roller Bearings Lubricated with Grease and Plummer Block Housings", SCHAEFFER, 26 November 2015 (2015-11-26), pages 1 - 2, XP055839110, Retrieved from the Internet <URL:https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/manualmountingoperation/downloads_7/mon90_de_en.pdf> [retrieved on 20210908]

Also Published As

Publication number Publication date
EP3581664A1 (fr) 2019-12-18
DE102018209222A1 (de) 2019-12-12

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