EP3581664B2 - Dispositif comprenant un récipient métallurgique - Google Patents

Dispositif comprenant un récipient métallurgique

Info

Publication number
EP3581664B2
EP3581664B2 EP19178308.3A EP19178308A EP3581664B2 EP 3581664 B2 EP3581664 B2 EP 3581664B2 EP 19178308 A EP19178308 A EP 19178308A EP 3581664 B2 EP3581664 B2 EP 3581664B2
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
EP3581664B1 (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
Family has litigation
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(B2) "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
Publication of EP3581664B1 publication Critical patent/EP3581664B1/fr
Application granted granted Critical
Publication of EP3581664B2 publication Critical patent/EP3581664B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 pivotably mounted about a horizontal axis, wherein the vessel has two support pins extending from the vessel on two opposite sides, wherein each of the two support pins is 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 include, for example, swiveling converters mounted in bearings that are subject to wear; regular maintenance is also required. If such a bearing supporting the converter becomes worn, the bearing, usually a rolling bearing (though sometimes a plain bearing is used), is opened, or more precisely, the bearing housing that holds the bearing. The converter system is then lifted with a device to release it from the bearing housings.
  • a support structure is erected in the converter pit, extending from the pit floor to the underside of the support ring or the converter itself. Hydraulic cylinders are mounted on this stand to lift the system. Additionally, a hydraulic lifting device can be positioned under the converter's gearbox to support the gearbox's slewing drive.
  • Suitable storage facilities are found, 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.
  • JP S58 207309 A and the US 2007/278722 A1 The images show metallurgical vessels being lifted on support pins using a lifting device.
  • the worn bearing is inspected, serviced, or removed and replaced with a new one, which may be split or undivided.
  • the bearing is often rotated to a different position on the journal.
  • the system is then set down again; the bearing housings are then closed again.
  • the invention is therefore based on the objective of further developing a device of the type mentioned above in such a way that it becomes possible to significantly reduce the effort involved in replacing or maintaining worn bearings.
  • it should be possible to carry out bearing replacement or maintenance without complex and expensive equipment.
  • the time required for bearing replacement should be significantly reduced.
  • an objective of the present invention is to simplify the replacement of a bearing in a converter. This should also provide an alternative solution for replacing or maintaining a bearing, compared to the previously known methods described above.
  • maintenance work or inspections should be able to be carried out more effectively, quickly, and therefore more cost-efficiently.
  • the solution to this problem by the invention is characterized in that a lifting device is arranged directly or indirectly on each bearing stand, which is designed to raise the support pin in a vertical direction from the bearing stand by a stroke amount for changing the bearing, and that a drive is provided for driving at least one of the support pins, which is connected to the support pin, wherein preferably a further lifting device is arranged, which is designed to raise the drive in a vertical direction by a stroke amount.
  • the lifting device can be housed 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 usually a partially cylindrical shape 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 bracket relative to the bearing stand.
  • the bearing support 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 for the arrangement of means that can be positioned on the drive unit to prevent or limit tilting of the drive unit around the horizontal axis.
  • These means can comprise at least one plate attached to the bearing stand or a foundation, which allows at least one bolt arranged on the drive unit to move vertically and prevents or at least limits movement in the horizontal direction.
  • the plate unit can preferably have at least one elongated hole in which the bolt can move vertically.
  • the present invention is preferably used in converter steel plants. It is based, in principle, on a bearing housing with a system lifting device.
  • a lifting and lowering console (lifting device), preferably shaped to match the bearing journal, is positioned directly next to the bearing.
  • a lifting and lowering console preferably shaped to match the bearing journal.
  • sleeves and other components in the area of the lifting console, as well as the bearing covers, are removed.
  • the consoles are then raised on both the fixed and floating bearing sides.
  • the drive can also be assisted by a hydraulic lifting tool. In this case, the dampers of the torque arm must be detached from the gearbox housing.
  • the bearings can be replaced.
  • the lowering process is carried out in reverse order.
  • a guide for the gearbox can be provided in the area where the dampers of the torque support are mounted. Plates with vertically oriented elongated holes can be permanently attached to the side of the gearbox (drive). The mounting bolts of the dampers can be removed through these holes before the lifting operation. A longer bolt can be inserted in their place, extending beyond the gearbox housing into the elongated holes of the plates. Here, the plates rest against the sides, thus preventing the system from tilting. Simultaneously, the drive brakes should be engaged.
  • the bearing housing can be designed as a welded component. Of course, it can also be designed as a cast part.
  • the aforementioned stationary storage stand could also directly serve as a foundation for the system.
  • the proposed device is advantageously used in the maintenance, servicing and inspection of the plant.
  • a device 1 comprising a metallurgical vessel 2 in the form of a converter.
  • the converter 2 is pivotably arranged about a horizontal axis a.
  • the converter 2 has a support pin 3 and a support ring 17 in each of two opposing side regions.
  • Each support pin 3 is mounted in a rolling bearing 4.
  • the rolling bearing 4 in turn, is housed in a bearing holder 5 (bearing housing), the bearing holder 5 resting on a bearing stand 6.
  • the bearing stand 6 is arranged on a foundation 13.
  • the bearing housing or an independent system lifting device can also be mounted directly on a foundation.
  • the invention provides that a lifting device 7 is arranged on each bearing stand 6.
  • the lifting device 7 is designed to move the support pin 3 vertically V away from the bearing stand 6 by a stroke h (see [reference]). 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 has a shape F that is adapted to that of the support pin 3. This is a sectionally cylindrical shape that corresponds to the radius of the support pin 3.
  • the lifting device 7 can raise the support pin 3, and thus the entire vessel 2, vertically by a stroke h such that the bearing 4, including the bearing housing 5, lifts off the bearing stand 6 and is accessible for bearing replacement.
  • a drive 10 (gearbox) is provided for pivoting the vessel 2, which is also raised by the aforementioned stroke h for the purpose of changing the bearings.
  • a further lifting device 11 is arranged in the base area of the drive 10, which raises the drive.
  • the drive 10 is prevented from moving and its movement is dampened in a manner known per se by dampers 18 in its base area.
  • the dampers 18 are pivotally attached to the drive 10 and/or to adjacent components in the base area.
  • means 12 which comprise plates 14 that are permanently attached to the bearing stand 6 or the foundation 13 in the base area of the drive 10.
  • the plates 14 have elongated holes 16 that extend in the vertical direction V.
  • Extended bolts 15 are inserted in their place. These bolts are designed for guidance within the plates 14 and have vertical movement V within the elongated holes 16. These bolts 15 guide the lower portion of the drive 10 as it is lifted by the lifting device 11.
  • the extended bolts 15 are in Figure 4a evident; they extend through the area of the elongated holes 16 in the sheets 14.
  • the described guidance of the lower part of the drive 10 can of course also be provided if a separate lifting device 11 is dispensed with and the vessel 2 is lifted exclusively with the two lifting devices 7.
  • Lifting the vessel 2, at least with the two lifting devices 7, and in this case also with the assistance of the lifting device 11, is thus easily accomplished, requiring only minimal technical effort. Nevertheless, the bearing 4 and the bearing housing 5 are sufficiently exposed to allow for easy bearing replacement or maintenance.

Landscapes

  • 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 (9)

  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 course de levage (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, et
    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 course de levage (h).
  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 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).
  8. Dispositif selon la revendication 7, 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.
  9. Dispositif selon la revendication 8, 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 EP3581664B2 (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 (3)

Publication Number Publication Date
EP3581664A1 EP3581664A1 (fr) 2019-12-18
EP3581664B1 EP3581664B1 (fr) 2020-11-18
EP3581664B2 true EP3581664B2 (fr) 2026-02-11

Family

ID=66770281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19178308.3A Active EP3581664B2 (fr) 2018-06-11 2019-06-05 Dispositif comprenant un récipient métallurgique

Country Status (2)

Country Link
EP (1) EP3581664B2 (fr)
DE (1) DE102018209222A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR2022021163A2 (tr) * 2022-12-29 2024-07-22 Erdemir Muehendislik Yoenetim Ve Danismanlik Hizmetleri Anonim Sirketi Konvertör kaldirma eki̇pmani
CN116676446B (zh) * 2023-07-04 2025-12-26 安徽工业大学 一种方便吊装大型转炉的安装装置及安装方法

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

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* 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
EP3581664B1 (fr) 2020-11-18
DE102018209222A1 (de) 2019-12-12

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