EP1533389A1 - Récipiente métallurgique basculant - Google Patents

Récipiente métallurgique basculant Download PDF

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Publication number
EP1533389A1
EP1533389A1 EP04105514A EP04105514A EP1533389A1 EP 1533389 A1 EP1533389 A1 EP 1533389A1 EP 04105514 A EP04105514 A EP 04105514A EP 04105514 A EP04105514 A EP 04105514A EP 1533389 A1 EP1533389 A1 EP 1533389A1
Authority
EP
European Patent Office
Prior art keywords
metallurgical vessel
support ring
locking
tiltable
clamping
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Withdrawn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
EP04105514A
Other languages
German (de)
English (en)
Inventor
Rudolf Dipl.-Ing. Gruber
Gerhard Ing. Losbichler
Günther Dipl.-Ing. Dr. Staudinger
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP1533389A1 publication Critical patent/EP1533389A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/42Constructional features of converters
    • C21C5/46Details or accessories
    • C21C5/4633Supporting means
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/42Constructional features of converters
    • C21C5/46Details or accessories
    • C21C5/50Tilting mechanisms for converters

Definitions

  • the invention relates to a tiltable metallurgical vessel, with a metallurgical Vessel in the distance at least partially surrounding support ring, wherein the metallurgical Vessel-mounted brackets rest on the support ring and the metallurgical vessel on Support ring is fixed in position with clamping devices.
  • the invention relates to a tensioning device for supporting and fastening a tiltable converter on a him at least partially surrounding him Support ring.
  • Such metallurgical vessels as they are mainly in steel mills for steel production used, are exchangeable vessels, which are exchanged at intervals need to renew their refractory lining or other repairs to be able to make them.
  • Tiltable metallurgical vessels such as converters
  • the metallurgical vessel To the thermal load of To keep the framework of the metallurgical vessel small, is the metallurgical vessel Therefore, usually arranged in a support ring, which is either as a closed annular or open horseshoe-shaped frame construction is designed. Of the Support ring is pivotable about a horizontal axis and has trunnions, which in one Shoring are stored.
  • the metallurgical vessel can either be in this support ring hanging or resting on it or be supported on it.
  • a change converter is known, hanging in a support ring is arranged and in this position of several distributed on the support ring tension elements is held by the transversely to their longitudinal direction easily deflectable rods or Bundles of individual wires are formed.
  • At one end of the tension elements are Clamp nuts screwed onto threaded sections.
  • a tensioning device formed by a piston-cylinder unit activated and generates a tensile force in the longitudinal direction of the tension elements, in total over all tension elements at least the load of the loaded with melt change converter equivalent. Under this bias, the clamping nuts can be tightened relatively easily be after discharge of the tensioning device, the set tensile force in the Tensile elements is maintained. Also by this solution are the disadvantages of Manual operation of the screw connection is not avoided.
  • the invention aims to avoid these disadvantages and difficulties and provides
  • the task is to create a tiltable metallurgical vessel in which the Make a secure connection or open this secure connection between the metallurgical vessel and the support ring without manual intervention of a Fitters can be assured.
  • an unintentional release of the Locking of the metallurgical vessel on the support ring with security excluded be.
  • each hydraulically actuable tensioning device is a self-locking clamping element includes.
  • This arrangement provides a steelwork system with the simplest elements on the metallurgical vessel and on the support ring, thereby significantly reducing the time to open and close the suspension is achieved. Furthermore, it comes to a considerable reduction of the total change time, since the metallurgical vessel is no longer cool down to create acceptable working conditions for the operating staff. A further reduction of the total change time results from the fact that the exhaust gas chimney above the metallurgical vessel no longer of adherent bears (deposits) must be cleaned in order to exclude a hazard to the operating personnel.
  • Damage to the hydraulic element due to rejects from the metallurgical Vessel, for example, especially during the blowing phase in a steel producing Converter, or by falling slag and metal bears from the converter mouth or the exhaust stack is additionally avoided if at least that the tensioning device actuated hydraulic element is disposed within or below the support ring.
  • it is advantageous if in addition parts of the clamping device itself in the Inside of the support ring are shifted or by appropriate covers on the Support ring are protected.
  • damage to the hydraulic elements be avoided if at least the clamping device actuated Hydraulic element, but preferably all components of the clamping device, not attack directly on parts of the metallurgical vessel, under a cover is arranged the support ring.
  • connection between the metallurgical vessel and the support ring formed by three hydraulically actuated clamping devices, wherein the support points the three clamping devices to achieve a uniform load distribution largely uniformly distributed on the support ring or the metallurgical vessel are.
  • these clamping devices are formed as identical as possible.
  • Support plates On the metallurgical vessel brackets are welded, which towering from the support ring Support plates are laterally opposite. These support plates center the metallurgical Vessel on the support ring in the assembly phase (during lowering of the metallurgical vessel on the support ring) and act as additional lateral Support surfaces for the metallurgical vessel, especially in the tilted charging and Tapping position. Weight forces acting parallel to the support ring plane are affected by these Support plates added.
  • the hydraulically actuated comprises Clamping a wedge connection and the clamping element is formed by a wedge, the wedge inclination ensures a self-locking of the clamping device, wherein the wedge in a self-locking clamping position, in which the wedge is a locking console penetrated, or in a release the metallurgical vessel release position, in which the Wedge releases the locking console, is designed to be displaceable.
  • the wedge angle is both for making the clamp connection as well their release mandatory activation of the hydraulic elements.
  • the wedge rests on a support plate on the support ring and interspersed in the self-locking clamping position a towering from the support ring stud bolts and the Locking console attached to the metallurgical vessel, wherein a self-locking the tensioning device between the wedge and the stud is made.
  • the the Aperture angle of the wedge defining inclined wedge surfaces are corresponding Opposite support surfaces in the passage opening of the stud opposite.
  • the locking console is attached to the metallurgical vessel and the Wedge supported on the support ring.
  • the embodiment of the hydraulically actuated clamping device after the first described embodiment allows the use of the support for the metallurgical vessel on the support ring provided in addition to console Locking bracket.
  • a second possible embodiment of the invention is characterized in that the hydraulically actuated clamping device formed by a pair of hooks Clamping element comprises, which coupled via a linkage with the hydraulic element is and in a self-locking clamping position, in which the pair of hooks Locking console engages behind, or in a metallurgical vessel releasing Release position, in which the pair of hooks releases the locking console, displaceable is trained.
  • the linkage comprises a toggle mechanism which is in a breakdown point a self-locking triggers and limited its displacement by a stop is.
  • the linkage comprises two rod lugs, which in their longitudinal extent below Load are designed compliant.
  • the rod lugs are accordingly designed resilient.
  • the pair of hooks are ball-jointed on the support ring.
  • the ball-jointed bearing will preferably achieved by spherical bearings.
  • the locking console is attached to the metallurgical vessel and the Hook pair pivotally mounted on the support ring.
  • Fig. 1 is the basic structure of a converter plant in a steel plant shown schematically.
  • the converter consisting of a non-illustrated Steel jacket and an internal refractory lining, is in a support ring 2 positioned at a short distance to this, reducing the thermal load of the Support ring is kept low by the hot converter vessel.
  • the most of one horseshoe-shaped frame construction formed support ring 2 is about two trunnions 3a, 3b rotatably supported in a support frame 4 and with a not shown here Tilting drive equipped, making the adjustment of a vertical or inclined Operating position of the converter for charging feedstock, blowing the Crude steel or parting of the liquid steel is made possible.
  • consoles 5a, 5b are welded, with which the Converter rests on the support ring 2 in not shown pads. Similarly, a hanging arrangement of the converter in the support ring is possible.
  • tensioning devices 6a, 6b are formed mainly by screw, the consoles are 5a, 5b and so that the converter 1 fixed in its predetermined position to the support ring 2 and this Position held even in the tilted operating position of the converter.
  • a first embodiment of a converter suspension with the invention Clamping device 6 is in Fig. 2 in the self-locking clamping position of Clamping device or locked operating position of the converter on the support ring shown.
  • These support plates 8 have centering bevels 9 for easier insertion of the locking console 20 (lowering the converter) in the of the support plates 8 formed gap during assembly.
  • the Locking console 20 vertically interspersed.
  • the stud 10 in turn points in horizontal direction a wedge-shaped passage opening 11, which are aligned in one Side wall of the locking console 20 and the support plate 8 continues and so on Entry channel for a formed by a wedge 13 clamping element 14 creates.
  • the slope Wedge surface 15 is located on the inclined support surface 16 in the wedge-shaped passage opening eleventh of the stud 10, wherein the inclined wedge surface 15 is aligned so that the Wedge inclination ensures a self-locking effect of the tensioning device.
  • Actuation of the wedge 13 is pivotally connected to a hydraulic element 17, which is also supported in a bracket 18 also articulated.
  • the console 18 is located with the support ring 2 fixedly connected.
  • the tensioning device in to accommodate a particular secured from slagging space. This can be done in easily done by a cover 19, only the necessary space for the vertical manipulation of the converter or at least partially Laying in the hollow interior of the support ring.
  • a second embodiment of a converter suspension with the invention Clamping device 6 is in Fig. 3 in the locked operating position of the converter on Support ring shown.
  • the welded to the housing of the converter 1 console 5a is located on a support plate 7 of the support ring 2 and is in its horizontal orientation by laterally next to the bracket 5a from the support ring towering lateral support plates. 8 established.
  • These support plates 8 have centering bevels 9 for easier insertion of the Console 5a in the gap formed by the support plates during assembly.
  • the console 5a and other not shown, resting on the support ring consoles serve only for supporting the converter in its vertical position.
  • FIG. 3 One of several tensioning devices 6 is shown in FIG. 3 and comprises a Hook pair 21 and a hydraulic element 17, which with the hook pair 21 via a Linkage 22 is functionally coupled. It acts with a locking console 20 together.
  • the locking console 20 is on the outer jacket of the converter. 1 welded and has two oblique, each roof-shaped Contact surfaces 23 which in the locked operating position the support surfaces 24 to the two hooks 25 of the hook pair 21 are opposite.
  • the two hooks of the Hook pair 21 engage behind the locking console 20.
  • the support surfaces 24 of the hook pair are mutually inclined and roof-shaped, so even at geometric deviations of the bearing surfaces by converter and Tragringverformungen as a result of thermal and mechanical loads a Edition and secure clamping of the components to each other can be achieved.
  • the Hook pair 21 is formed like a pair of pliers, wherein the two elements of the hook pair 21 are mounted on journal 26 in spherical bearings ball joint.
  • the journals 26 are pivotally supported in the support ring 2. Due to the ball-jointed bearing of the Hook pair 21 on the support ring 2 is also a compensation of changes in the Geometry between converter and support ring safely ensured.
  • the connecting Linkage 22 between the hook pair 21 and the hydraulic element 17 is as Toggle mechanism formed with the toggle joint in the locked Position against a stop 30 presses and the toggle mechanism so self-locking effect.
  • Two hinged to the two elements of the hook pair 21 Linkage tabs 27 are pivotally connected to a push rod 28 and a Joint plate 29 coupled to the hydraulic element 17.
  • the hydraulic element When locking the converter on the support ring, the hydraulic element is the 17th activated and exerted on the push rod 28 a compressive force, wherein the open Hook pair 21 engages behind the locking console 20 during its closing movement and builds a clamping force when passing through the breakdown point of the Toggle joint is a maximum and thus activates the self-locking.
  • loosening the converter is an activation of the hydraulic element in the opposite direction.
  • FIG. 4a shows the self-locking Clamping device with an open hook pair 21 and the locking console 20 of the Converter in a lowered position.
  • the pair of hooks 21 is inside the Support ring 2 supported spherically in spherical bearings and linkage lugs 27 hingedly connected to a push rod 28.
  • the push rod 28 is connected via a two-armed lever 31, which is also pivotally mounted in the interior of the support ring, coupled with a hydraulic element 17.
  • the push rod 28 moves upward until it abuts the stop 30, which limits the upward movement.
  • FIG. 4b This self-locking clamping position is illustrated in FIG. 4b.
  • the stopper 30 is positioned so that between each of the link plates 27 and the push rod 28 a Angle ⁇ of about 87.5 ° occurs, causing the self-locking effect of Knob mechanism is justified.
  • the hydraulic element 17 has a tensile force on the Push rod 28 can be applied to the breakdown point (90 ° position between Linkage tabs and push rod) to pass through.
  • Fig. 5 shows a longitudinal section through one of the two rod lug 27 of the Toggle mechanism.
  • the rod lug 27 is at one end with the Push rod 28 and with its other end with an element of the hook pair 21st connected by spherical bearings 33 articulated, wherein in a certain range lateral Distractions are possible.
  • the shaft 34 of the linkage lug is constructed in several parts. Between a first shaft part 35, which terminates in a pin 36 and a second Shank portion 37 having a central bore 38 into which the pin 36 of the first Shank part 35 protrudes and with a retaining ring 39 permitting longitudinal mobility is positioned, a plate spring package 40 is arranged.
  • this hydraulically actuated clamping device in particular the Hydraulic element, are inside the hollow support ring and at the bottom, thus housed in slag splash and dust protected areas.
  • elements of the clamping device under a Cover be arranged on the support ring.
  • Fig. 4a protrude only with the Locking console 20 in engagement reaching clamping claws of the hook pair 21 from the interior of the support ring 2 upwards, and there are sliding covers 42 on arranged the support ring, all other parts of the clamping device before Protect impurities.
  • Fig. 6 is a support ring with the necessary means for fixing a position here Not shown converter shown in an oblique view.
  • the horseshoe-shaped trained support ring 2 carries on its support plate 7 at three points, which is substantially offset by 90 ° to each other, towering consoles 5a, 5b, 5c at which the to be used converter is centered in its position.
  • towering consoles 5a, 5b, 5c at which the to be used converter is centered in its position.
  • three hydraulically actuated clamping devices 6a, 6b, 6c are arranged, which are the Location of the converter used by applying a sufficient contact pressure even in the tilted position of the converter.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Clamps And Clips (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
EP04105514A 2003-11-11 2004-11-04 Récipiente métallurgique basculant Withdrawn EP1533389A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT18102003 2003-11-11
AT0181003A AT412478B (de) 2003-11-11 2003-11-11 Kippbares metallurgisches gefäss

Publications (1)

Publication Number Publication Date
EP1533389A1 true EP1533389A1 (fr) 2005-05-25

Family

ID=32831445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04105514A Withdrawn EP1533389A1 (fr) 2003-11-11 2004-11-04 Récipiente métallurgique basculant

Country Status (3)

Country Link
EP (1) EP1533389A1 (fr)
KR (1) KR20050045880A (fr)
AT (1) AT412478B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006066854A3 (fr) * 2004-12-21 2007-01-18 Sms Demag Ag Recipient metallurgique comprenant un systeme de fixation
WO2007028535A1 (fr) * 2005-09-09 2007-03-15 Siemens Vai Metals Technologies Gmbh & Co Cuve metallurgique basculante
CN102667385A (zh) * 2009-12-22 2012-09-12 奥图泰有限公司 冶金炉
EP3502282A1 (fr) 2017-12-20 2019-06-26 Primetals Technologies Austria GmbH Cuve métallurgique inclinable et procédé de fixation et de libération d'un récipient métallurgique inclinable
CN113817891A (zh) * 2021-09-15 2021-12-21 莱芜钢铁集团建筑安装工程有限公司 转炉体的球铰支撑自由找正安装方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251964A1 (de) * 2002-11-08 2004-05-19 Sms Demag Ag Schnellwechselbefestigung von metallurgischen Behandlungsgefäßen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2063470A1 (en) * 1970-12-23 1972-06-29 Fried. Krupp Gmbh, 4300 Essen Converter support on carrier ring - is effected on flat surfaces obviating its lifting out on removal
US4049249A (en) * 1975-03-12 1977-09-20 Vereinigte Osterreichische Eisen - Und Stahlwerke - Alpine Montan Aktiengesellschaft Tiltable converter
US4195824A (en) * 1978-01-27 1980-04-01 Demag, Aktiengesellschaft Jig for tension elements for metallurgic vessels, particularly alternating converters
EP0029878A1 (fr) * 1979-11-28 1981-06-10 M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft Dispositif de suspension et de fixation d'un convertisseur dans un anneau porteur
WO2004042091A1 (fr) * 2002-11-08 2004-05-21 Sms Demag Aktiengesellschaft Récipient pour le traitement métallurgique de fonte brute, d'acier liquide et analogue, en particulier récipient de convertisseur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2063470A1 (en) * 1970-12-23 1972-06-29 Fried. Krupp Gmbh, 4300 Essen Converter support on carrier ring - is effected on flat surfaces obviating its lifting out on removal
US4049249A (en) * 1975-03-12 1977-09-20 Vereinigte Osterreichische Eisen - Und Stahlwerke - Alpine Montan Aktiengesellschaft Tiltable converter
US4195824A (en) * 1978-01-27 1980-04-01 Demag, Aktiengesellschaft Jig for tension elements for metallurgic vessels, particularly alternating converters
EP0029878A1 (fr) * 1979-11-28 1981-06-10 M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft Dispositif de suspension et de fixation d'un convertisseur dans un anneau porteur
WO2004042091A1 (fr) * 2002-11-08 2004-05-21 Sms Demag Aktiengesellschaft Récipient pour le traitement métallurgique de fonte brute, d'acier liquide et analogue, en particulier récipient de convertisseur

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006066854A3 (fr) * 2004-12-21 2007-01-18 Sms Demag Ag Recipient metallurgique comprenant un systeme de fixation
WO2007028535A1 (fr) * 2005-09-09 2007-03-15 Siemens Vai Metals Technologies Gmbh & Co Cuve metallurgique basculante
CN101263232B (zh) * 2005-09-09 2010-07-07 西门子Vai金属技术两合公司 夹紧设备
CN102667385A (zh) * 2009-12-22 2012-09-12 奥图泰有限公司 冶金炉
CN102667385B (zh) * 2009-12-22 2014-08-06 奥图泰有限公司 冶金炉
US8926894B2 (en) 2009-12-22 2015-01-06 Outotec Oyj Metallurgical furnace
EP3502282A1 (fr) 2017-12-20 2019-06-26 Primetals Technologies Austria GmbH Cuve métallurgique inclinable et procédé de fixation et de libération d'un récipient métallurgique inclinable
WO2019121858A1 (fr) 2017-12-20 2019-06-27 Primetals Technologies Austria GmbH Conteneur métallurgique remplaçable et basculable et procédé pour la fixation et l'enlèvement d'un conteneur métallurgique basculable
CN111465708A (zh) * 2017-12-20 2020-07-28 首要金属科技奥地利有限责任公司 可倾翻可更换的冶金容器及用于固定和松开可倾翻的冶金容器的方法
US11168374B2 (en) 2017-12-20 2021-11-09 Primetals Technologies Austria GmbH Tiltable exchangeable metallurgical vessel and method for fixing and releasing a tiltable metallurgical vessel
CN111465708B (zh) * 2017-12-20 2022-08-02 首要金属科技奥地利有限责任公司 可倾翻可更换的冶金容器及用于固定和松开可倾翻的冶金容器的方法
CN113817891A (zh) * 2021-09-15 2021-12-21 莱芜钢铁集团建筑安装工程有限公司 转炉体的球铰支撑自由找正安装方法

Also Published As

Publication number Publication date
AT412478B (de) 2005-03-25
KR20050045880A (ko) 2005-05-17
ATA18102003A (de) 2004-08-15

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