EP1862559B1 - Dispositif de levage pour poêles de traitement de l'acier dans des installations - Google Patents

Dispositif de levage pour poêles de traitement de l'acier dans des installations Download PDF

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Publication number
EP1862559B1
EP1862559B1 EP07009875A EP07009875A EP1862559B1 EP 1862559 B1 EP1862559 B1 EP 1862559B1 EP 07009875 A EP07009875 A EP 07009875A EP 07009875 A EP07009875 A EP 07009875A EP 1862559 B1 EP1862559 B1 EP 1862559B1
Authority
EP
European Patent Office
Prior art keywords
lifting arms
lifting
hoisting mechanism
mechanism according
pan
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.)
Not-in-force
Application number
EP07009875A
Other languages
German (de)
English (en)
Other versions
EP1862559A1 (fr
Inventor
Joachim K. Ehle
Michael Kurtbaum
Markus Huellen
Reinhard Pannenbäcker
Arno Luven
Jochen Sowinski
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
Primetals Technologies Germany GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH Austria
Siemens VAI Metals Technologies GmbH Germany
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 Siemens VAI Metals Technologies GmbH Austria, Siemens VAI Metals Technologies GmbH Germany filed Critical Siemens VAI Metals Technologies GmbH Austria
Publication of EP1862559A1 publication Critical patent/EP1862559A1/fr
Application granted granted Critical
Publication of EP1862559B1 publication Critical patent/EP1862559B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
    • B66C17/10—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for transporting ladles
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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

Definitions

  • the invention relates to a hoist for lifting a ladle filled with liquid steel from a ladle transport vehicle to the dip tubes of the vacuum treatment vessel of an RH plant.
  • liquid steel is subjected to a vacuum treatment by immersing the vacuum treatment vessel with its dip tubes in the molten steel in the ladle.
  • the vacuum treatment vessel is lowered into the ladle standing on a ladle transport vehicle.
  • the vacuum treatment vessel has numerous connections for the vacuum generation and the passage / suction of treatment gases, so that each movement of the vacuum treatment vessel means a corresponding stress on its connections and their supply lines.
  • the pans are lifted by means of suitable hoists from the ladle transport vehicle or including the ladle transport vehicle and brought to the dip tubes of permanently installed vacuum treatment vessel.
  • This is done by KranseilgeTec or hydraulic lifting devices that ensure an exact vertical movement of the pan, because of the desired large dip tube diameter exact positioning of the pan is to ensure with respect to the dip tubes.
  • Kranseilge von as well as hydraulic lifting devices are space consuming and therefore require a correspondingly large construction and intervention costs.
  • the abstract XP-002440928, available from the WPI (Thomson) database, to document SU 908,847 discloses a hoist with which a ladle filled with liquid metal can be raised towards a vacuum treatment vessel or dip tube of such a vessel. There is a lever construction, which must be attached to a ceiling suspension. The complex mechanism also requires a lowered floor area in which a hydraulic cylinder is arranged.
  • the invention has for its object to provide a hoist for a liquid steel-containing pan for lifting a ladle transport car to the dip tubes of the vacuum treatment vessel of an RH plant available, which on the basis of rotatable lift arms, but largely without one in the rotational movement of the Lift arms entering horizontal movement of the pan works.
  • the invention provides in its basic idea before a hoist, consisting of two at one end with trained on the pan holders to be engaged lifting arms, which are held at its other end of the bearing in a stationary support, wherein the support of a at the bearing ends of Arranged lift arms, designed as a circular arc section runway and from a runway during the rotational movement of the lifting arms axially stationary leading rolling track is such that due to the resulting in the lifting movement of the load introduction point in the support a reduction in the horizontal movement of the pan occurs.
  • the invention has the advantage that during the rotation of the lifting arms for raising or discontinuing the pan due to the design of the support with a rolling off on a stationary Wälzbahn abraded arcuate Spabahn and the associated displacement of the pivot point for the pivoting movement of the lifting arms also a horizontal displacement the lifting arms is effected, by means of which the horizontal displacement of the pan associated with the pivoting path in the lifting or Absetzzi the pan is compensated.
  • the arcuate section-shaped Runway and the stationary Wälzbahn are provided with interlocking teeth.
  • a hoist can alternatively be provided to a constant radius of the arcuate section-shaped runway according to an embodiment that the radius of the circular arc section-shaped runway changes depending on the rotational position and the length of the lift arms, and that as a result the runway is curved.
  • the radius of the circular arc section-shaped runway changes depending on the rotational position and the length of the lift arms, and that as a result the runway is curved.
  • the two lifting arms are connected to one another by a cross-connection carrier which crosses over the ladle transport carriage, wherein the transverse connection carrier set in rotation by the movement of the lifting arms is held and guided in the support. Due to the symmetrical arrangement and design of the lifting arms with cross-connection carrier a good load bearing is ensured even in the support.
  • the arcuate section-shaped run-off track is formed directly on the cross-connection carrier itself, or that the cross-connection carrier is held in a housing box and the arcuate section-shaped runway is formed on the housing box.
  • each of the two lift arms is acted upon by an associated hydraulic cylinder
  • the cross-connection carrier is formed with such a torsional stiffness, that the second lifting arm is taken in the movement of the acted upon by the hydraulic cylinder first lift arm.
  • the cross-connection carrier engages over the ladle transport car at such a height that the pan transport carriage with the pan mounted thereon can be moved under the cross-connection carrier, so that the pan transport car under the hoist free are movable.
  • the pan Since the pan must remain aligned during the rotational movement of the lifting arms in each case in their vertical direction, is provided according to an embodiment of a pan formed as both sides radially projecting pin holding devices that the lifting arms at its end wiegen shame, a relative movement of the pin to the lift arms enabling recording for the pins.
  • the pan is movably suspended with their pins in the weigh-like recordings and is also directed at a rotational movement of the lift arms each automatically in the vertical.
  • pans with pins projecting radially on both sides and lugs rotatably supported thereon are provided as holding devices, wherein the lugs are useful for hooking in crane hooks for the movement of the pans during operation. Since the tabs are rotatable with respect to the pins located on the pan, the pan aligns itself in their handling by acting on the tabs handling devices each automatically in the vertical.
  • the lifting arms have at their ends the lugs form-fitting underarchive receptacles, so that during the lifting or settling movement of the pan and during the treatment time, the pan is elevated with the tabs in the receptacles of the lifting arms; a misalignment of the tabs in the raised treatment position of the pan is not detrimental because the pan is rotatably suspended in the tabs and therefore aligns due to the lower center of gravity in the vertical.
  • FIG. 1 and 2 results, is used to transport a pan 11 a ladle dolly 10, on which the pan 11 at her Handling is elevated.
  • the pan 11 is provided with laterally projecting pin 12 as a holding device in the illustrated embodiment, so that, for example, crane hooks can engage the pin 12 of the pan 11.
  • a hoist for the pan 11 is shown, by means of which the pan can be lifted to only schematically shown dip tubes 22 of a vacuum treatment vessel not shown zoom.
  • the hoist 13 consists of two lifting arms 14 which can attack on both sides of the pin 12 of the pan 11.
  • the two lifting arms 14 are connected to each other via a cross-connection support 15, wherein the cross-connection support 15 is mounted in a housing box 16.
  • the housing box 16 is supported by laterally arranged the path of movement for the ladle dolly 10 foundation bases 23, so that the ladle transport vehicle 10 cross portal-like device is formed as a lifting mechanism 13.
  • the lateral foundation bases 23 are designed with such a height that the cross-connection support 15 engages over the ladle transport carriage 10 with the ladle 11 mounted thereon at such a height that the ladle transport carriage 10 with the ladle 11 resting thereon can be moved through the lifting mechanism 13.
  • the cross-connection support 15 is mounted in a housing box 16, on the undersides of each a circular arc section-shaped runway 18 is formed, which rests on a stationary Wälzbahn 19, the arcuate in the rotational movement of the lifting arms Run-path 18 leads in its longitudinal direction.
  • the lifting arms 14 each have a weighing-like receptacle 20 for engaging under the pin 12 of the pan 11.
  • the pins 12 of the pan 11 in the weighing receptacles 20 can move relative to the lifting arms 14, so that the resting in the receptacles 20 pan 12, as will be described, automatically due to the low-lying Aligning the center of gravity with its vertical axis in the vertical direction.
  • each with a lifting arm 14 associated hydraulic cylinder 21 is a controlled lowering of the pan with the remaining hydraulic cylinder possible from the raised pan position in case of failure of a cylinder.
  • FIG. 3 the operating phase is shown, in which the pan 11 is driven with its pin 12 on the weigh-like receptacles 20 of the lifting arms 14 and the lifting arms 14 are already raised by means of the hydraulic cylinder 21 so far that the pins 12 are in the weighing receptacles 20.
  • the pan 11 is raised in the direction of the immersion tubes 22, not shown in these figures, which due to the still to be explained special training of the support 17 for the lifting arms 14 which is given in a pivoting hoist inherent horizontal displacement of the vertical axis of the pan 11. It can be seen that in the raised position of the pan 11 according to FIG. 4 a barely noticeable, negligible in the operation horizontal displacement of the vertical axis of the pan 11 has taken place.
  • the circular arc-shaped path of travel 18 and the Wälzbahn 19 are each provided with a toothing 25 and 26, so that the teeth engage in the rolling movement into each other and thus the lifting arms 14 in the Supports 17 are fixed during their displacement.
  • 34 of the load application point of the drain path 18 is designated in the Wälzbahn 19, which moves axially during the rolling of the circular arc section-shaped runway 18 on the Wälzbahn 19 ( FIG. 7 ). This displacement causes the lifting movement to reduce the horizontal movement of the pan.
  • R 1 R 0 ⁇ 1 - cos / ⁇ radians
  • ⁇ denotes the pivot angle to be traversed during the lifting movement of the cup 11
  • R 0 is the radius of rotation of the pins around the support 17.
  • the parameters R 1 and R 0 can be changed depending on the angle of rotation ⁇ passed through the pan 11.
  • brackets for receiving the pan and separate lateral tabs 29 may be arranged, wherein the tabs 29 further comprise the provided pins 12 and are rotatable relative to the pin 12. At their upper end, the tabs 29 have a connecting bolt 33 for the attack of, for example, crane hooks. If the pan 11 lifted on the tabs 29, so the pan 11 is due to the rotatable mounting of the pin 12 in the tabs 29 in each case in the vertical automatically.
  • This kinematics is in an embodiment of the invention according to FIG.
  • a counterweight 31 is provided on the lifting arms 14 or the housing box 16 supporting the cross-connection carrier 15.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Transportation (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Coating With Molten Metal (AREA)

Claims (11)

  1. Dispositif ( 13 ) de levage, pour soulever une poche ( 11 ) emplie d'acier liquide d'un chariot ( 10 ) de transport de poche sur des tubes ( 22 ) plongeurs d'une enceinte de traitement sous vide d'une installation RH, comprenant deux bras ( 14 ) de levage, qui sont reliés à leur extrémité à un vérin hydraulique ou respectivement à un vérin ( 21 ) hydraulique et qui ont respectivement un logement ( 20 ), qui peut être mis en prise avec des dispositifs ( 12, 29 ) de maintien constitués sur la poche ( 11 ) et qui permet un déplacement des dispositifs ( 12, 29 ) de maintien par rapport aux bras ( 14 ) de levage, caractérisé en ce que les bras ( 14 ) de levage sont maintenus à leur autre extrémité dans un support ( 17 ) fixe, le support ( 17 ) étant constitué d'une voie ( 18 ) de roulement disposée à l'autre extrémité des bras ( 14 ) de levage et formée d' un segment d'arc de cercle et d'une voie ( 19 ) de référence guidant de manière fixe axialement la voie ( 18 ) de roulement lors d'un mouvement de levage du/des Vérin( ( s ) ( 21 ) hydrauliques, de manière à ce que lors du mouvement de levage, se produise un déplacement d'un point ( 34 ) d'application de la charge dans le support ( 17 ) par le fait que la voie ( 18 ) de roulement en forme de segment d'arc de cercle a un rayon ( R1 ) et un centre , dont la position se modifie en fonction d'une position de levage des bras ( 14 ) de levage.
  2. Dispositif de levage suivant la revendication 1, caractérisé en ce que la voie ( 18 ) de roulement en forme de segment d'arc de cercle et la voie ( 19 ) de référence fixe sont munies de dentures ( 25, 26 ) engrenant l'une dans l'autre.
  3. Dispositif de levage suivant l'une des revendications 1 ou 2, caractérisé en ce que les deux bras ( 14 ) de levage sont reliés entre eux par une traverse ( 15 ) de liaison enjambant le chariot ( 10 ) de transport de poche, la poutre ( 15 ) de liaison transversale mise en rotation par le déplacement des bras ( 14 ) de levage étant maintenue et guidée dans le support ( 17 ).
  4. Dispositif de levage suivant la revendication 3, caractérisé en ce que la voie ( 18 ) de roulement en forme de segment d'arc de cercle est formée sur la traverse ( 15 ) de liaison.
  5. Dispositif de levage suivant la revendication 3, caractérisé en ce que la traverse ( 15 ) de liaison est maintenue dans une caisse ( 16 ) formant capot et la voie ( 18 ) de roulement en forme de segment d'arc de cercle est formée sur la caisse ( 18 ) formant capot.
  6. Dispositif de levage suivant l'une des revendications 3 à 5, caractérisé en ce qu'un vérin ( 21 ) hydraulique est associé à l'un des bras ( 14 ) de levage.
  7. Dispositif de levage suivant l'une des revendications 1 à 5, caractérisé en ce que respectivement un vérin ( 21 ) hydraulique est associé aux deux bras ( 14 ) de levage.
  8. Dispositif de levage suivant l'une des revendications 3 à 7, caractérisé en ce que la traverse ( 15 ) de liaison enjambe le chariot ( 10 ) de transport de poches à un niveau tel que le chariot ( 10 ) de transport de poches peut être déplacé avec la poche ( 11 ) qui y est dressée sous la traverse ( 15 ) de liaison.
  9. Dispositif de levage suivant l'une des revendications 1 à 8, caractérisé en ce que les logements permettant un mouvement relatif par rapport aux dispositifs ( 12, 29 ) de maintien sont formés à la manière d'un berceau.
  10. Dispositif de levage suivant l'une des revendications 1 à 8, caractérisé en ce que les logements ( 20 ) sont formés pour prendre par en dessous à complémentarité de forme, les dispositifs ( 12, 29 ) de maintien.
  11. Dispositif de levage suivant l'une des revendications 1 à 10, caractérisé en ce que les bras ( 14 ) de levage sont prolongés au-delà du support ( 17 ) et sont pourvus d'un contrepoids ( 31 ) à leur extrémité dépassant du support ( 17 ).
EP07009875A 2006-06-02 2007-05-18 Dispositif de levage pour poêles de traitement de l'acier dans des installations Not-in-force EP1862559B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006026330A DE102006026330B3 (de) 2006-06-02 2006-06-02 Hubwerk für Stahlbehandlungspfannen in RH-Anlagen

Publications (2)

Publication Number Publication Date
EP1862559A1 EP1862559A1 (fr) 2007-12-05
EP1862559B1 true EP1862559B1 (fr) 2012-04-11

Family

ID=38190609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009875A Not-in-force EP1862559B1 (fr) 2006-06-02 2007-05-18 Dispositif de levage pour poêles de traitement de l'acier dans des installations

Country Status (9)

Country Link
US (1) US7662337B2 (fr)
EP (1) EP1862559B1 (fr)
CN (1) CN101081683B (fr)
AT (1) ATE553222T1 (fr)
BR (1) BRPI0701672A (fr)
DE (1) DE102006026330B3 (fr)
ES (1) ES2384889T3 (fr)
RU (1) RU2431595C2 (fr)
ZA (1) ZA200704381B (fr)

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CN101525680B (zh) * 2009-04-02 2010-10-13 宝钢工程技术集团有限公司 真空循环脱气法钢包提升液压系统
CN201485193U (zh) * 2009-08-26 2010-05-26 上海宝钢工程技术有限公司 钢包液压提升装置
CN102826490A (zh) * 2012-08-31 2012-12-19 宝钢工程技术集团有限公司 顶升式钢包台车及其在真空循环脱气精炼法中的应用
CN103288012B (zh) * 2013-03-06 2017-02-15 青岛威达机械制造有限公司 横移顶升转运台车
EP2801627A1 (fr) 2013-05-06 2014-11-12 Siemens VAI Metals Technologies GmbH Récipient de traitement sous vide pour le traitement d'une fonte métallique, notamment pour une installation RH
ES2690539T3 (es) * 2015-10-27 2018-11-21 Primetals Technologies Germany Gmbh Dispositivo de elevación de cuchara y método para el traslado vertical de una cuchara para metal fundido
CN105789098B (zh) * 2016-05-10 2018-11-02 黄剑鸿 一种半导体硅片提升装置
CN107458965B (zh) * 2017-09-02 2019-03-26 如皋市双亚环保科技有限公司 一种大型设备吊装方法
CN107364793B (zh) * 2017-09-02 2019-03-29 如皋市双亚环保科技有限公司 一种双牵引式吊装系统
CN107311030B (zh) * 2017-09-02 2019-01-25 如皋市双亚环保科技有限公司 一种大型设备安装系统
EP3566795A1 (fr) * 2018-05-07 2019-11-13 Primetals Technologies Germany GmbH Dispositif de levage pour une cuve métallurgique et dispositif de traitement pour métal liquide
DE102018209222A1 (de) * 2018-06-11 2019-12-12 Sms Group Gmbh Vorrichtung, umfassend ein metallurgisches Gefäß
CN110946077A (zh) * 2019-12-15 2020-04-03 黑龙江省农业机械工程科学研究院齐齐哈尔农业机械化研究所 一种耙链式粪便液压提升机

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Also Published As

Publication number Publication date
EP1862559A1 (fr) 2007-12-05
ES2384889T3 (es) 2012-07-13
CN101081683B (zh) 2013-01-16
BRPI0701672A (pt) 2008-02-19
RU2431595C2 (ru) 2011-10-20
CN101081683A (zh) 2007-12-05
DE102006026330B3 (de) 2007-10-31
ATE553222T1 (de) 2012-04-15
US7662337B2 (en) 2010-02-16
RU2007120534A (ru) 2008-12-10
ZA200704381B (en) 2008-08-27
US20070278722A1 (en) 2007-12-06

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