EP0141803B1 - Device for mounting or removing a mouth ring consisting of single segments of a tilting metallurgical vessel - Google Patents

Device for mounting or removing a mouth ring consisting of single segments of a tilting metallurgical vessel Download PDF

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Publication number
EP0141803B1
EP0141803B1 EP84890177A EP84890177A EP0141803B1 EP 0141803 B1 EP0141803 B1 EP 0141803B1 EP 84890177 A EP84890177 A EP 84890177A EP 84890177 A EP84890177 A EP 84890177A EP 0141803 B1 EP0141803 B1 EP 0141803B1
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EP
European Patent Office
Prior art keywords
platform
lip ring
frame
arrangement according
converter
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.)
Expired
Application number
EP84890177A
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German (de)
French (fr)
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EP0141803A1 (en
Inventor
Manfred Eysn
Viktor Dipl.-Ing. Ducai
Kurt Hohmann
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Voestalpine AG
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Voestalpine AG
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Publication date
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Publication of EP0141803A1 publication Critical patent/EP0141803A1/en
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Expired legal-status Critical Current

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    • 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
    • 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

Definitions

  • the invention relates to a lip ring segment exchange device.
  • the lip ring is a wearing part in a steelworks converter, which must be replaced after or during a converter trip.
  • the lip ring is composed of segments and each of the segments is fastened to the converter with its own fastening means, specifically to a support flange of the converter jacket.
  • the lip ring segments which are located on the racking and charging side, require a more frequent exchange than the other lip ring segments.
  • the invention aims to avoid these disadvantages and difficulties and has as its object to provide a device which enables simple and quick installation and removal of a lip ring, even when the converter is surrounded by a closed chamber and is difficult to access is.
  • a lip ring change should be possible without having to remove and install parts of the chamber.
  • a lip ring segment exchange device which is characterized by a carriage on which a platform which can be raised and lowered by means of a lifting device is provided, on which at least one slide forming a support for a lip ring segment rests and which slides in the platform plane. and is pivotable.
  • the space below the converter is accessible for converters used in chambers, since space is required for metallurgical vehicles such as ladle transport trolleys, slag transport trolleys, crucible changing trolleys, etc.
  • the invention is based on the idea that, by tilting the converter into the headstand, this free space beneath the converter can be used to install and remove the lip ring.
  • the platform can preferably be rotated about a vertical axis relative to the carriage.
  • a particular advantage of the invention can be seen in the fact that you do not need your own wagon to change the lip ring, but you can use a steel vehicle that is already present in the steelworks.
  • Suitable for this purpose is, for example, a steel removal trolley on which a converter floor lifting device, for example according to AT-PS 311 399, is placed, which is also already present in the steelworks when using converters with removable floors.
  • Also suitable as a base for changing the lip ring are lifting and lowering lining devices, e.g. B. according to AT-B-338.849.
  • a steelworks transport pallet truck with a lifting device, which is used for installing and removing a converter or a converter base, is known from DE-A-2 903 361.
  • This transport pallet truck can also be used as the basis for changing the lip ring, whereby when using a steel extraction truck or transport pallet truck with a converter floor lifting device, the platform is expediently formed by a frame which rests loosely on the counter support surfaces of the lifting device by means of several support supports.
  • the slide is displaceable relative to the platform by means of at least two adjusting devices arranged at an angle to one another.
  • the adjusting devices are preferably designed as adjusting spindles lying parallel to the platform level, which are pivotally mounted on the slide about a vertical axis, the counter bearing of each adjusting spindle being supported on the platform so as to be displaceable.
  • a particularly simple construction is characterized in that the platform for supporting the counter bearing has a support with a T-shaped profile, and the counter bearing has a T-shaped recess, the smallest distance between opposite walls of the recess being greater than the width of the flange of the T-shaped profile equipped carrier, and further the counter bearing is penetrated by the adjusting spindle with play provided in the axial direction of the adjusting spindle.
  • FIG. 1 showing a side view of the device
  • FIG. 2 showing a top view of the latter.
  • a rotated position of the platform of the device is illustrated in FIG. 2 in a representation analogous to FIG. Figure 4 shows a section along the line IV-IV of Figure 2 on a larger scale.
  • 5 and 6 show a second embodiment in a representation analogous to FIGS. 2 and 3.
  • FIG. 1 shows the mouth 1 of a converter 2 tilted into the headstand, on which a lip ring 3 formed from eight segments 3 ', 3 ",... Is attached to a mouth flange 4 of the converter jacket 5.
  • Each of the lip ring segments 3', 3 ", ... is made of heavy plate with a thickness of about 100 mm and weighs about 1,000 kg.
  • the Converter floor lifting device 8 has a central hydraulically actuated piston 9, which carries at its upper end a four-armed star 10 for receiving a converter floor.
  • a rectangular frame 13 formed from longitudinal and cross members 11 and 12 with a double T-profile is placed on this star, on which eight vertically downwardly extending support supports designed as stands 14 are welded, four of which are attached to the Loosely rest the ends of the arms 10 'of the star 10. Guides, not shown, secure the stand 14 and thus the frame 13 against lateral displacement.
  • the frame 13 forming a platform is placed on the star 10 in a corresponding position by a crane.
  • a carriage 19 also formed from longitudinal and transverse beams 17, 18, which sits loosely on the central longitudinal beams 11 of the frame 13.
  • Each carriage 19 represents the support for a lip ring segment 3 ', 3 ", ..., which is shown in FIGS. 2 and 3 with dash-dotted lines.
  • each of the slides 19 is mounted on the frame 13 in the frame level or platform level 20 so as to be displaceable and pivotable.
  • the sliding and pivoting of the carriage 19 is accomplished by means of two adjusting spindles 23 articulated on lateral arms 21 of the carriage 19 and pivotable about a vertical axis 22, the counter bearings 24 of the steep spindles 23 being attachable to the longitudinal or transverse beams 11, 12 of the frame 13 .
  • the counter bearing 24 can be displaced in the axial direction of the adjusting spindle 23 between a collar 25 of the adjusting spindles 23 and the hand crank 26 mounted at the end of the adjusting spindle.
  • the counter bearing 24 has a T-shaped groove 27, the distance 28 of the vertical outer groove surfaces 29 being larger than the width 30 of the flange 31 of the double T-beams 11, 12 forming the frame. It is possible to twist the spindle to move the thrust bearing 24 into the central position shown in FIG. 4 by means of the hand crank 26, whereupon the thrust bearing 24 can be lifted by hand and placed elsewhere on the frame 13 after the adjusting spindles 23 have been pivoted about the vertical axis 22.
  • the spindle nut 32 is cylindrical and is mounted in a bearing part 33 on the arm 21.
  • the adjusting spindle 23 either the hand crank 26 or the collar 25 comes into contact with the counter bearing 24, whereby the counter bearing 24 is displaced so far that the flange 31 of the frame 13 forming double T-beam 11 or 12 in one of the undercut groove parts 34 engages.
  • the carriage 19 is displaced relative to the frame 13 by further rotation of the adjusting spindle.
  • the function of the device is as follows: If a lip ring segment 3 ', 3 ", ... of a converter 2 is to be replaced, the carriage 7 with the ground lifting device 8 and the frame 13 attached is first brought into position under the converter 2 tilted into the headstand, and in such a way that the carriage 19 is located approximately under the lip ring segment 3 ', 3 ", ... to be replaced.
  • the frame 13 is raised so far by means of the hydraulically liftable piston 9 that the slide 19 comes to lie just below the segment 3 ', 3 ", ..., whereupon the slide 19 by means of the adjusting spindles 23 to the lip ring segment 3 to be exchanged ', 3 ", ... is brought into position so that it is approximately symmetrical about the carriage 19.
  • the frame 13 is then raised further until the lip ring 3 almost touches the slide 19.
  • spacers are inserted between the lip ring 3 and the slide 19 and the fastening elements of the lip ring segment 3 ', 3 ", ... to be removed, for example screw nuts, are loosened.
  • the frame 13 is then lowered and the carriage 7 moves laterally next to the converter 2.
  • the lip ring segment 3 ', 3 ", ... is lifted from the carriage 19 and an intact lip ring segment 3', 3", ... on the carriage 19, also in a symmetrical position, to the Carriage placed on (to align the lip ring segments 3 ', 3 ", ... stop (s) not shown mounted on the carriage are used.
  • the carriage 7 moves again under the converter 2 into the previously assumed position, whereupon the frame 13 so far is lifted that the fastening means penetrate the intact lip ring segment 3 ', 3 ", ..., whereupon this is lifted by means of the screw nuts from the slide 19 by tightening the nuts.
  • the particular advantage of changing this type is that the slide only has to be aligned once, namely when removing the lip ring segment to be replaced. If a lip ring segment adjacent to the first lip ring segment is to be exchanged, after the carriage 7 has been moved sideways, the frame is placed on the star 10 by means of the hall crane, after the frame 13 has been lowered, by means of the hall crane. H. it then encloses the longitudinal axis 35 of the rectangular platform with the direction of travel 35 'of the carriage 7 at an angle of approximately 45 °, as shown in FIG. 3.
  • FIGS. 5 and 6 has a cross-shaped frame 36 with four slides 19, which makes it possible to simultaneously remove four lip ring segments 3' to 3" and install.
  • the star 10 of the floor lifting device 8 can not only be raised and lowered, but also rotated about its vertical axis 37, so that by rotating the star 10 the frame 36 from the position shown in FIG the position shown in Figure 6 is rotatable. In this position, the remaining four of the eight lip ring segments 3 ', 3 ", ... can be installed or removed.
  • the lip ring is formed from only four lip ring segments, then the frame 36, on which four slides 19 are mounted - as shown in the figure - can be used to install or remove the entire lip ring 3 in one operation without twisting of the frame 36 about its vertical axis 37 is necessary.

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  • 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)

Description

Die Erfindung betrifft eine Lippringsegmentaustauschvorrichtung.The invention relates to a lip ring segment exchange device.

Der Lippring stellt bei einem Stahlwerkskonverter einen Verschleißteil dar, der nach oder während einer Konverterreise erneuert werden muß. Um Verformungen des Konverters zu ermöglichen, ist der Lippring aus Segmenten zusammengesetzt und jedes der Segmente ist mit eigenen Befestigungsmitteln am Konverter, und zwar an einem Auflageflansch des Konvertermantels, befestigt. Die Lippringsegmente, die abstich- und chargierseitig liegen, erfordern einen öfteren Austausch als die übrigen Lippringsegmente.The lip ring is a wearing part in a steelworks converter, which must be replaced after or during a converter trip. In order to enable deformations of the converter, the lip ring is composed of segments and each of the segments is fastened to the converter with its own fastening means, specifically to a support flange of the converter jacket. The lip ring segments, which are located on the racking and charging side, require a more frequent exchange than the other lip ring segments.

Es ist bekannt, diese Lippringsegmente mittels eigener Hebezeuge, die beim Konverterstand vorgesehen sind, auszuwechseln, und zwar nach seitlichem Wegfahren der Abzugshaube. In letzter Zeit werden Konverter zum Schutz der Belegschaft eines Stahlwerkes von innerhalb der Stahlwerkshalle angeordneten geschlossenen Kammern umgeben. Solche geschlossene Kammern behindern die Zugänglichkeit des Konverters, insbesondere ist es nur mehr unter Schwierigkeiten möglich, den Lippring zu erneuern. Man muß daher, um den Lippring zu wechseln, Teile der Kammer entfernen und anschließend wieder einbauen.It is known to replace these lip ring segments by means of own lifting devices, which are provided at the converter stand, after the extractor hood has been moved away to the side. Recently, converters for protecting the workforce of a steel mill have been surrounded by closed chambers arranged within the steel mill hall. Such closed chambers hinder the accessibility of the converter, in particular it is only possible with difficulty to replace the lip ring. To change the lip ring, parts of the chamber must therefore be removed and then reinstalled.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Vorrichtung zu schaffen, die einen einfachen und schnellen Ein- und Ausbau eines Lippringes ermöglicht, und zwar auch dann, wenn der Konverter von einer geschlossenen Kammer umgeben und nur schwer zugänglich ist. Insbesondere soll ein Lippringwechsel möglich sein, ohne Teile der Kammer aus- und einbauen zu müssen.The invention aims to avoid these disadvantages and difficulties and has as its object to provide a device which enables simple and quick installation and removal of a lip ring, even when the converter is surrounded by a closed chamber and is difficult to access is. In particular, a lip ring change should be possible without having to remove and install parts of the chamber.

Diese Aufgabe der Erfindung wird durch eine Lippringsegmentaustauschvorrichtung gelöst, die gekennzeichnet ist durch einen Wagen, an dem eine mittels einer Hubeinrichtung heb- und senkbare Plattform vorgesehen ist, auf der mindestens ein eine Auflage für ein Lippringsegment bildender Schlitten aufliegt, der in der Plattformebene verschieb- und verschwenkbar ist. Der Raum unterhalb des Konverters ist bei in Kammern eingesetzten Konvertern zugänglich, da man Platz für Hüttenfahrzeuge, wie Pfannentransportwagen, Schlackentransportwagen, Tiegelwechselwagen, etc., benötigt. Die Erfindung beruht auf der Idee, durch Kippen des Konverters in den Kopfstand, diesen freien Raum unterhalb des Konverters zum Ein- und Ausbau des Lippringes nutzbringend zu verwenden.This object of the invention is achieved by a lip ring segment exchange device, which is characterized by a carriage on which a platform which can be raised and lowered by means of a lifting device is provided, on which at least one slide forming a support for a lip ring segment rests and which slides in the platform plane. and is pivotable. The space below the converter is accessible for converters used in chambers, since space is required for metallurgical vehicles such as ladle transport trolleys, slag transport trolleys, crucible changing trolleys, etc. The invention is based on the idea that, by tilting the converter into the headstand, this free space beneath the converter can be used to install and remove the lip ring.

Vorzugsweise ist die Plattform gegenüber dem Wagen um eine vertikale Achse verdrehbar.The platform can preferably be rotated about a vertical axis relative to the carriage.

Ein besonderer Vorteil der Erfindung ist darin zu sehen, daß man zum Lippringwechsel keinen eigenen Wagen benötigt, sondern ein im Stahlwerk ohnehin vorhandenes Hüttenfahrzeug einsetzen kann. Dazu geeignet ist beispielsweise ein Stahlentnahmewagen, auf den eine Konverterbodenhubvorrichtung, beispielsweise gemäß AT-PS 311 399, aufgesetzt wird, die bei Verwendung von Konvertern mit abnehmbaren Böden ebenfalls bereits im Stahlwerk vorhanden ist. Geeignet als Ausgangsbasis zum Lippringwechseln sind auch heb- und senkbare Ausmauerungsvorrichtungen, z. B. gemäß AT-B-338.849. Ein Stahlwerks-Transporthubwagen mit einer Hubeinrichtung, die zum Ein- und Ausbau eines Konverters bzw. eines Konverterbodens dient, ist aus der DE-A-2 903 361 bekannt. Dieser Transporthubwagen läßt sich ebenfalls als Basis für das Lippringwechseln einsetzen, wobei bei Verwendung eines Stahlentnahmewagens bzw. Transporthubwagens mit Konverterbodenhubvorrichtung zweckmäßig die Plattform von einem Rahmen gebildet ist, der mittels mehrerer Stützauflagen an Gegenstützflächen der Hubeinrichtung lose aufliegt.A particular advantage of the invention can be seen in the fact that you do not need your own wagon to change the lip ring, but you can use a steel vehicle that is already present in the steelworks. Suitable for this purpose is, for example, a steel removal trolley on which a converter floor lifting device, for example according to AT-PS 311 399, is placed, which is also already present in the steelworks when using converters with removable floors. Also suitable as a base for changing the lip ring are lifting and lowering lining devices, e.g. B. according to AT-B-338.849. A steelworks transport pallet truck with a lifting device, which is used for installing and removing a converter or a converter base, is known from DE-A-2 903 361. This transport pallet truck can also be used as the basis for changing the lip ring, whereby when using a steel extraction truck or transport pallet truck with a converter floor lifting device, the platform is expediently formed by a frame which rests loosely on the counter support surfaces of the lifting device by means of several support supports.

Gemäß einer bevorzugten Ausführungsform ist der Schlitten gegenüber der Plattform mittels mindestens zweier i.m Winkel zueinander angeordneter Stelleinrichtungen verschiebbar.According to a preferred embodiment, the slide is displaceable relative to the platform by means of at least two adjusting devices arranged at an angle to one another.

Vorzugsweise sind die Stelleinrichtungen als parallel zur Plattformebene liegende Stellspindeln ausgebildet die am Schlitten um eine vertikale Achse schwenkbar montiert sind, wobei das Gegenlager jeder Stellspindel an der Plattform versetzbar abgestützt ist.The adjusting devices are preferably designed as adjusting spindles lying parallel to the platform level, which are pivotally mounted on the slide about a vertical axis, the counter bearing of each adjusting spindle being supported on the platform so as to be displaceable.

Eine besonders einfache Konstruktion ist dadurch gekennzeichnet, daß die Plattform zur Abstützung des Gegenlagers einen Träger mit T-förmigem Profil, und das Gegenlager eine T-förmige Ausnehmung aufweist, wobei der kleinste Abstand gegenüberliegender Wände der Ausnehmung größer ist als die Breite des Flansches des mit T-förmigem Profil ausgestatteten Trägers, und wobei weiters das Gegenlager von der Stellspindel mit in Achsrichtung der Stellspindel vorgesehenem Spiel durchsetzt ist.A particularly simple construction is characterized in that the platform for supporting the counter bearing has a support with a T-shaped profile, and the counter bearing has a T-shaped recess, the smallest distance between opposite walls of the recess being greater than the width of the flange of the T-shaped profile equipped carrier, and further the counter bearing is penetrated by the adjusting spindle with play provided in the axial direction of the adjusting spindle.

Die Erfindung ist nachstehend anhand zweier in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert, wobei Figur 1 eine Seitenansicht der Vorrichtung und Figur 2 eine Draufsicht auf diese zeigen. In Figur ist eine gedrehte Lage der Plattform der Vorrichtung in zu Figur 2 analoger Darstellung veranschaulicht. Figur4 zeigt einen Schnitt gemäß der Linie IV-IV der Figur 2 in größerem Maßstab. Fig. 5 und 6 zeigen eine zweite Ausführungsform in zu den Figuren 2 und 3 analoger Darstellung.The invention is explained in more detail below with reference to two exemplary embodiments shown in the drawing, FIG. 1 showing a side view of the device and FIG. 2 showing a top view of the latter. A rotated position of the platform of the device is illustrated in FIG. 2 in a representation analogous to FIG. Figure 4 shows a section along the line IV-IV of Figure 2 on a larger scale. 5 and 6 show a second embodiment in a representation analogous to FIGS. 2 and 3.

In Figur 1 ist die Mündung 1 eines in den Kopfstand gekippten Konverters 2 gezeigt, an dem ein aus acht Segmenten 3', 3", ... gebildeter Lippring 3 an einem Mündungsflansch 4 des Konvertermantels 5 befestigt ist. Jedes der Lippringsegmente 3', 3", ... ist aus Grobblech mit einer Stärke von etwa 100 mm gefertigt und wiegt etwa 1 000 kg. Unterhalb des Konverters 1 ist ein auf Schienen 6 verfahrbarer Stahlentnahmewagen 7, auf den eine Konverterbodenhubvorrichtung 8 aufgebracht ist, in Stellung gebracht. Die Konverterbodenhubvorrichtung 8 weist einen zentralen hydraulisch betätigbaren Kolben 9 auf, der an seinem oberen Ende einen vierarmigen Stern 10 zur Aufnahme eines Konverterbodens trägt.1 shows the mouth 1 of a converter 2 tilted into the headstand, on which a lip ring 3 formed from eight segments 3 ', 3 ",... Is attached to a mouth flange 4 of the converter jacket 5. Each of the lip ring segments 3', 3 ", ... is made of heavy plate with a thickness of about 100 mm and weighs about 1,000 kg. A steel removal carriage 7, which can be moved on rails 6 and to which a converter floor lifting device 8 is attached, is positioned below the converter 1. The Converter floor lifting device 8 has a central hydraulically actuated piston 9, which carries at its upper end a four-armed star 10 for receiving a converter floor.

Im vorliegenden Fall ist auf diesem Stern ein aus Längs- und Querträgern 11 und 12 mit Doppel T-Profil gebildeter rechteckiger Rahmen 13 aufgesetzt, auf dem acht sich vertikal nach unten erstreckende, als Ständer 14 ausgebildete Stützauflagen, angeschweißt sind, von denen vier an den Enden der Arme 10' des Sternes 10 lose aufliegen. Nicht dargestellte Führungen sichern die Ständer 14 und damit den Rahmen 13 gegen seitliches Verschieben. Der eine Plattform bildende Rahmen 13 wird von einem Kran auf den Stern 10 in entsprechender Lage aufgesetzt. An den Rahmenschmalseiten 15. 16 des rechteckigen Rahmens 13 ist jeweils ein ebenfalls aus Längs-und Querträgern 17, 18 gebildeter Schlitten 19 vorgesehen, der auf den mittleren Längsträgern 11 des Rahmens 13 lose aufsitzt. Jeder Schlitten 19 stellt die Auflage für ein Lippringsegment 3', 3", ..., welches in Figuren 2 und 3 mit strichpunktierten Linien dargestellt ist, dar.In the present case, a rectangular frame 13 formed from longitudinal and cross members 11 and 12 with a double T-profile is placed on this star, on which eight vertically downwardly extending support supports designed as stands 14 are welded, four of which are attached to the Loosely rest the ends of the arms 10 'of the star 10. Guides, not shown, secure the stand 14 and thus the frame 13 against lateral displacement. The frame 13 forming a platform is placed on the star 10 in a corresponding position by a crane. On the narrow sides 15, 16 of the rectangular frame 13 there is in each case a carriage 19, also formed from longitudinal and transverse beams 17, 18, which sits loosely on the central longitudinal beams 11 of the frame 13. Each carriage 19 represents the support for a lip ring segment 3 ', 3 ", ..., which is shown in FIGS. 2 and 3 with dash-dotted lines.

Da sich die Mündung 1 eines Konverters 2 während der Konverterreise mehr oder weniger stark verformt, d. h. von der idealen kreisförmigen Form abweicht, ist jeder der Schlitten 19 am Rahmen 13 in der Rahmenebene bzw. Plattformebene 20 verschiebbar und verschwenkbar gelagert. Das Verschieben und Verschwenken des Schlittens 19 wird mittels zweier an seitlichen Armen 21 des Schlittens 19 angelenkter, um eine vertikale Achse 22 schwenkbarer Stellspindeln 23 bewerkstelligt, wobei die Gegenlager 24 der Steilspindeln 23 an den Längs- oder Querträgern 11, 12 des Rahmens 13 aufsetzbar sind.Since the mouth 1 of a converter 2 deforms more or less during the converter journey, i. H. deviates from the ideal circular shape, each of the slides 19 is mounted on the frame 13 in the frame level or platform level 20 so as to be displaceable and pivotable. The sliding and pivoting of the carriage 19 is accomplished by means of two adjusting spindles 23 articulated on lateral arms 21 of the carriage 19 and pivotable about a vertical axis 22, the counter bearings 24 of the steep spindles 23 being attachable to the longitudinal or transverse beams 11, 12 of the frame 13 .

Wie aus Figur 4 ersichtlich ist, ist das Gegenlager 24 zwischen einem Bund 25 der Stellspindeln 23 und der am Ende der Stellspindel montierten Handkurbel 26 um einen Betrag a + b in Achsrichtung der Stellspindel 23 verschiebbar. Das Gegenlager 24 weist eine T-förmige Nut 27 auf, wobei der Abstand 28 der vertikalen äußeren Nutflächen 29 größer bemessen ist als die Breite 30 des Flansches 31 der den Rahmen bildenden Doppel T-Träger 11, 12. Durch Verdrehen der Spindel ist es möglich, mittels der Handkurbel 26 das Gegenlager 24 in die in Figur 4 dargestellte Mittellage zu bewegen, worauf das Gegenlager 24 von Hand aus gehoben und an anderer Stelle des Rahmens 13 nach Verschwenken der Stellspindeln 23 um die vertikale Achse 22 abgesetzt werden kann. Um das Anheben und Absenken des Gegenlagers 24 zu gewährleisten, ist die Spindelmutter 32 zylindrisch ausgebildet und in einem Lagerteil 33 am Arm 21 gelagert. Durch Verdrehen der Stellspindel 23 gelangt entweder die Handkurbel 26 oder der Bund 25 in Anlage mit dem Gegenlager 24, wodurch das Gegenlager 24 so weit verschoben wird, daß der Flansch 31 des den Rahmen 13 bildenden Doppel T-Trägers 11 bzw. 12 in einen der hinterschnittenen Nutteile 34 eingreift. Durch weiteres Verdrehen der Stellspindel wird der Schlitten 19 gegenüber dem Rahmen 13 verschoben.As can be seen from FIG. 4, the counter bearing 24 can be displaced in the axial direction of the adjusting spindle 23 between a collar 25 of the adjusting spindles 23 and the hand crank 26 mounted at the end of the adjusting spindle. The counter bearing 24 has a T-shaped groove 27, the distance 28 of the vertical outer groove surfaces 29 being larger than the width 30 of the flange 31 of the double T-beams 11, 12 forming the frame. It is possible to twist the spindle to move the thrust bearing 24 into the central position shown in FIG. 4 by means of the hand crank 26, whereupon the thrust bearing 24 can be lifted by hand and placed elsewhere on the frame 13 after the adjusting spindles 23 have been pivoted about the vertical axis 22. In order to ensure that the counter bearing 24 is raised and lowered, the spindle nut 32 is cylindrical and is mounted in a bearing part 33 on the arm 21. By turning the adjusting spindle 23 either the hand crank 26 or the collar 25 comes into contact with the counter bearing 24, whereby the counter bearing 24 is displaced so far that the flange 31 of the frame 13 forming double T-beam 11 or 12 in one of the undercut groove parts 34 engages. The carriage 19 is displaced relative to the frame 13 by further rotation of the adjusting spindle.

Wie aus Figur 2 ersichtlich ist, ist es möglich, den Schlitten 19 gegenüber dem Rahmen 13 eine beliebige Stellung einnehmen zu lassen, wobei jedoch nicht dargestellte Anschläge vorgesehen sind, die die Beweglichkeit des Schlittens gegenüber dem Rahmen begrenzen.As can be seen from FIG. 2, it is possible to have the slide 19 assume any position relative to the frame 13, but stops (not shown) are provided which limit the mobility of the slide relative to the frame.

Die Funktion der Einrichtung ist folgende : Soll ein Lippringsegment 3', 3", ... eines Konverters 2 gewechselt werden, wird zunächst der Wagen 7 mit aufgesetzter Bodenhubvorrichtung 8 und aufgesetztem Rahmen 13 unter den in Kopfstand gekippten Konverter 2 in Stellung gebracht, und zwar so, daß sich der Schlitten 19 etwa unter dem auszutauschenden Lippringsegment 3', 3", ... befindet.The function of the device is as follows: If a lip ring segment 3 ', 3 ", ... of a converter 2 is to be replaced, the carriage 7 with the ground lifting device 8 and the frame 13 attached is first brought into position under the converter 2 tilted into the headstand, and in such a way that the carriage 19 is located approximately under the lip ring segment 3 ', 3 ", ... to be replaced.

Anschließend wird mittels des hydraulisch hebbaren Kolbens 9 der Rahmen 13 so weit gehoben, daß der Schlitten 19 knapp unterhalb des Segmentes 3', 3", ... zu liegen kommt, worauf der Schlitten 19 mittels der Stellspindeln 23 derart zu dem auszutauschenden Lippringsegment 3', 3", ... in Stellung gebracht wird, daß sich dieses etwa symmetrisch über dem Schlitten 19 befindet. Sodann wird der Rahmen 13 weiter gehoben, bis der Lippring 3 den Schlitten 19 beinahe berührt. Danach werden Distanzstücke zwischen dem Lippring 3 und dem Schlitten 19 eingelegt und die Befestigungselemente des auszubauenden Lippringsegmentes 3', 3", ..., beispielsweise Schraubenmuttern, gelöst. Anschließend wird der Rahmen 13 abgesenkt und der Wagen 7 fährt seitlich neben den Konverter 2. Mittels einer Hubeinrichtung, beispielsweise mittels des Hallenkranes, wird das Lippringsegment 3', 3", ... vom Schlitten 19 abgehoben und ein intaktes Lippringsegment 3', 3", ... auf den Schlitten 19, ebenfalls in symmetrischer Lage, zu dem Schlitten aufgelegt. (Zur Ausrichtung der Lippringsegmente 3', 3", ... dienen nicht dargestellte am Schlitten montierte Anschläg(e). Daraufhin fährt der Wagen 7 wieder unter den Konverter 2 in die zuvor eingenommene Stellung, worauf der Rahmen 13 so weit gehoben wird, daß die Befestigungsmittel das intakte Lippringsegment 3', 3", ... durchsetzen, worauf dieses mittels der Schraubenmuttern vom Schlitten 19 durch Anziehen der Muttern gehoben wird.Subsequently, the frame 13 is raised so far by means of the hydraulically liftable piston 9 that the slide 19 comes to lie just below the segment 3 ', 3 ", ..., whereupon the slide 19 by means of the adjusting spindles 23 to the lip ring segment 3 to be exchanged ', 3 ", ... is brought into position so that it is approximately symmetrical about the carriage 19. The frame 13 is then raised further until the lip ring 3 almost touches the slide 19. Then spacers are inserted between the lip ring 3 and the slide 19 and the fastening elements of the lip ring segment 3 ', 3 ", ... to be removed, for example screw nuts, are loosened. The frame 13 is then lowered and the carriage 7 moves laterally next to the converter 2. By means of a lifting device, for example by means of the indoor crane, the lip ring segment 3 ', 3 ", ... is lifted from the carriage 19 and an intact lip ring segment 3', 3", ... on the carriage 19, also in a symmetrical position, to the Carriage placed on (to align the lip ring segments 3 ', 3 ", ... stop (s) not shown mounted on the carriage are used. Thereupon the carriage 7 moves again under the converter 2 into the previously assumed position, whereupon the frame 13 so far is lifted that the fastening means penetrate the intact lip ring segment 3 ', 3 ", ..., whereupon this is lifted by means of the screw nuts from the slide 19 by tightening the nuts.

Der besondere Vorteil bei einem Wechsel dieser Art ist darin zu sehen, daß der Schlitten nur einmal ausgerichtet werden muß, nämlich beim Ausbau des auszutauschenden Lippringsegmentes. Ist ein dem ersten Lippringsegment benachbartes Lippringsegment auszutauschen, wird nach seitlichem Verfahren des Wagens 7 neben den Konverter - nach vorherigem Absenken des Rahmens 13 - der Rahmen mittels des Hallenkranes etwa um 45° versetzt auf den Stern 10 aufgesetzt, d. h. es schließt dann die Längsachse 35 der rechteckigen Plattform mit der Fahrrichtung 35' des Wagens 7 einen Winkel von etwa 45° ein, wie dies in Figur 3 dargestellt ist.The particular advantage of changing this type is that the slide only has to be aligned once, namely when removing the lip ring segment to be replaced. If a lip ring segment adjacent to the first lip ring segment is to be exchanged, after the carriage 7 has been moved sideways, the frame is placed on the star 10 by means of the hall crane, after the frame 13 has been lowered, by means of the hall crane. H. it then encloses the longitudinal axis 35 of the rectangular platform with the direction of travel 35 'of the carriage 7 at an angle of approximately 45 °, as shown in FIG. 3.

Mit der in den Figuren 1 bis 3 dargestellten Vorrichtung ist der gleichzeitige Ein- und Ausbau von zwei Lippringsegmenten 3', 3", ... möglich. Die in Figuren 5 und 6 dargestellte Ausführungsform der Vorrichtung weist einen kreuzförmigen Rahmen 36 mit vier Schlitten 19 auf, wodurch es möglich ist, vier Lippringsegmente 3' bis 3" gleichzeitig aus- und einzubauen.With the device shown in Figures 1 to 3 is the simultaneous installation and removal of two lip ring segments 3 ', 3 ", ... possible. The embodiment of the device shown in FIGS. 5 and 6 has a cross-shaped frame 36 with four slides 19, which makes it possible to simultaneously remove four lip ring segments 3' to 3" and install.

Bei der in den Figuren 5 und 6 dargestellten Ausführungsform ist der Stern 10 der Bodenhubvorrichtung 8 nicht nur heb- und senkbar, sondern auch um seine vertikale Achse 37 verdrehbar, sodaß durch Verdrehen des Sternes 10 der Rahmen 36 aus der in Figur 5 dargestellten Stellung in die in Figur 6 gezeigte Stellung verdrehbar ist. In dieser Stellung können die restlichen vier der insgesamt acht Lippringsegmente 3', 3", ... ein- bzw. ausgebaut werden.In the embodiment shown in FIGS. 5 and 6, the star 10 of the floor lifting device 8 can not only be raised and lowered, but also rotated about its vertical axis 37, so that by rotating the star 10 the frame 36 from the position shown in FIG the position shown in Figure 6 is rotatable. In this position, the remaining four of the eight lip ring segments 3 ', 3 ", ... can be installed or removed.

Die Erfindung beschränkt sich nicht nur auf die in der Zeichnung dargestellten Ausführungsformen. Ist der Lippring beispielsweise aus lediglich vier Lippringsegmenten gebildet, so kann mit dem Rahmen 36, an dem vier Schlitten 19 gelagert sind - wie dies in Figur gezeigt ist - der gesamte Lippring 3 in einem Arbeitsvorgang ein- bzw. ausgebaut werden, ohne daß ein Verdrehen .des Rahmens 36 um seine vertikale Achse 37 notwendig ist.The invention is not limited to the embodiments shown in the drawing. If, for example, the lip ring is formed from only four lip ring segments, then the frame 36, on which four slides 19 are mounted - as shown in the figure - can be used to install or remove the entire lip ring 3 in one operation without twisting of the frame 36 about its vertical axis 37 is necessary.

Claims (6)

1. An arrangement for exchanging mouth ring segments, characterised by a car (7), on which a platform (13, 36) liftable and lowerable by a lifting means (8, 9) is provided, on which at least one cradle (19) forming a support for a mouth-ring segment (3', 3", ...) rests, which is displaceable and pivotable in the plane (20) of the platform.
2. An arrangement according to claim 1, characterised in that the platform (13, 36) is rotatable about a vertical axis (37) relative to the car (7).
3. An arrangement according to claim 1 or 2, characterised in that the platform (13, 36) is formed by a frame (13, 36) loosely resting on counter supporting surfaces (10') of the lifting means (8, 9) by means of several supporting means (14).
4. An arrangement according to claims 1 to 3, characterised in that the cradle (19) is displaceable relative to the platform (13, 36) by at least two adjustment means (23) arranged at an angle relative to each other.
5. An arrangement according to claim 4, characterised in that the adjustment means are designed as adjustment spindles (23) arranged parallel to the plane (20) of the platform and mounted on the cradle (19) so as to be pivotable about a vertical and a horizontal axis, the counter bearing (24) of each adjustment spindle (23) being supported on the platform (13, 36) in a displaceable manner.
6. An arrangement according to claim 5, characterised in that the platform (13, 36) for supporting the counter bearing (24) comprises a girder (11, 12) with a T-shaped section and the counter bearing (24) comprises a T-shaped recess (27), the smallest distance (28) of opposite walls (29) of the recess (27) being larger than the width (30) of the flange (31) of the girder (11, 12) having a T-shaped section, and wherein, furthermore, the counter bearing (24) is penetrated by the adjustment spindle (23) with a play (a + b) provided in the axial direction of the adjustment spindle (23).
EP84890177A 1983-09-28 1984-09-24 Device for mounting or removing a mouth ring consisting of single segments of a tilting metallurgical vessel Expired EP0141803B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3437/83 1983-09-28
AT0343783A AT378538B (en) 1983-09-28 1983-09-28 DEVICE FOR INSTALLING OR REMOVING A LIPPRING OF A TILTABLE METALLURGICAL VESSEL, MADE OF LIPPRING SEGMENTS

Publications (2)

Publication Number Publication Date
EP0141803A1 EP0141803A1 (en) 1985-05-15
EP0141803B1 true EP0141803B1 (en) 1987-06-16

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EP84890177A Expired EP0141803B1 (en) 1983-09-28 1984-09-24 Device for mounting or removing a mouth ring consisting of single segments of a tilting metallurgical vessel

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US (1) US4588169A (en)
EP (1) EP0141803B1 (en)
JP (1) JPS6092415A (en)
KR (1) KR850002292A (en)
AT (1) AT378538B (en)
CA (1) CA1222624A (en)
DE (1) DE3464260D1 (en)
ES (1) ES536265A0 (en)
SU (1) SU1306483A3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223933B1 (en) * 1985-11-29 1992-12-02 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Process for producing magnetic heads
CN108163766B (en) * 2017-12-27 2020-08-07 中北大学 Rotary clamping device for mine supporting beam
CN108705074B (en) * 2018-05-31 2020-09-04 青海盐湖工业股份有限公司 Ladle transfer device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141916A (en) * 1960-07-05 1964-07-21 Pennsylvania Engineering Corp Plant installation for servicing furnace vessel
DE1154131B (en) * 1961-05-20 1963-09-12 Hwm Weh Maschf Hermann Device for producing a lining of containers, in particular converters, which contain molten metal, consisting of mold blocks
BE758793A (en) * 1969-11-18 1971-04-16 Voest Ag HYDRAULIC LIFTING DEVICE FOR MOUNTING OR DISMANTLING CONVERTERS AND CONVERTER BOTTOMS
US3866382A (en) * 1974-02-20 1975-02-18 United States Steel Corp Apparatus for supporting workmen within an open-ended vessel and carrying materials into and out of the vessel, and method of installing such apparatus in a vessel
AT338849B (en) * 1975-06-10 1977-09-12 Voest Ag BRINGING DEVICE FOR METALLURGICAL DRESSERS
US4061319A (en) * 1975-08-29 1977-12-06 United States Steel Corporation Mobile truck for relining a converter
US4039174A (en) * 1976-03-31 1977-08-02 Fordees Corporation Reline tower for a metallurgical furnace
CA1074111A (en) * 1977-06-27 1980-03-25 Algoma Steel Corporation Removal and/or installation of top section of steelmaking vessel
DE2903361C2 (en) * 1979-01-29 1982-07-01 Mannesmann AG, 4000 Düsseldorf Transport pallet trucks for metallurgical vessels, in particular for steel works converters

Also Published As

Publication number Publication date
SU1306483A3 (en) 1987-04-23
US4588169A (en) 1986-05-13
ES8600413A1 (en) 1985-10-01
DE3464260D1 (en) 1987-07-23
ATA343783A (en) 1984-10-15
KR850002292A (en) 1985-05-10
JPH0438822B2 (en) 1992-06-25
JPS6092415A (en) 1985-05-24
AT378538B (en) 1985-08-26
EP0141803A1 (en) 1985-05-15
ES536265A0 (en) 1985-10-01
CA1222624A (en) 1987-06-09

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