EP0141803B1 - Dispositif pour l'installation ou le démontage d'une bague de sortie formée de segments de bague de sortie d'un récip ient métallurgique basculant - Google Patents

Dispositif pour l'installation ou le démontage d'une bague de sortie formée de segments de bague de sortie d'un récip ient métallurgique basculant 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
Authority
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
Other languages
German (de)
English (en)
Other versions
EP0141803A1 (fr
Inventor
Manfred Eysn
Viktor Dipl.-Ing. Ducai
Kurt Hohmann
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0141803A1 publication Critical patent/EP0141803A1/fr
Application granted granted Critical
Publication of EP0141803B1 publication Critical patent/EP0141803B1/fr
Expired legal-status Critical Current

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Classifications

    • 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)

Claims (6)

1. Dispositif d'échange des segments de la couronne de gueule, caractérisé par un chariot (7) sur lequel est prévue une plate-forme (13, 36) que l'on peut lever et abaisser au moyen d'un dispositif de levage (8, 9) et sur laquelle repose au moins un traineau (19) qui forme surface d'appui pour un segment de la couronne de gueule (3', 3", ...) et qui peut coulisser et pivoter dans le plan de la plate-forme (20).
2. Dispositif selon la revendication 1, caractérisé en ce que la plate-forme (13, 36) peut tourner autour d'un axe vertical (37) par rapport au chariot (7).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la plate-forme (13, 36) est formée d'un cadre (13, 36) qui repose, sans être fixé, au moyen de plusieurs appuis (14), sur des contre-surfaces d'appui (10') du dispositif de levage (8, 9).
4. Dispositif selon les revendications 1 à 3, caractérisé en ce que le traineau (19) peut coulisser par rapport à la plate-forme (13, 36) au moyen d'au moins deux mécanismes de positionnement (23) disposés en faisant un angle l'un par rapport à l'autre.
5. Dispositif selon la revendication 4, caractérisé en ce que les mécanismes de positionnement sont conçus sous forme de tiges de positionnement (23) qui sont placées parallèlement au plan de la plate-forme (20) et qui sont montées sur le traineau (19) avec possibilité de pivoter autour d'un axe vertical et autour d'un axe horizontal, la contre-portée (24) de chaque tige de positionnement (23) s'appuyant sur la plate-forme (13, 36) avec possibilité de décalage.
6. Dispositif selon la revendication 5, caractérisé en ce que la plate-forme (13, 36), pour servir d'appui de la contre-portée (24), présente une poutre (11, 12) à profil en forme de T tandis que la contre-portée (24) présente un évidement en forme de T (27), étant précisé que le plus petit écartement (28) des parois (29), situées l'une en face de l'autre, de l'évidement (27) est supérieur, à la largeur (30) de l'aile (31) de la poutre (11, 12) qui présente le profil en forme de T ; et étant précisé par ailleurs que la contre-portée (24) est traversée par la tige de positionnement (23) avec un jeu (a + b) prévu dans la direction axiale de la tige de positionnement (23).
EP84890177A 1983-09-28 1984-09-24 Dispositif pour l'installation ou le démontage d'une bague de sortie formée de segments de bague de sortie d'un récip ient métallurgique basculant Expired EP0141803B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3437/83 1983-09-28
AT0343783A AT378538B (de) 1983-09-28 1983-09-28 Vorrichtung zum ein- oder ausbau eines aus lippringsegmenten gebildeten lippringes eines kippbaren metallurgischen gefaesses

Publications (2)

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

Family

ID=3550505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84890177A Expired EP0141803B1 (fr) 1983-09-28 1984-09-24 Dispositif pour l'installation ou le démontage d'une bague de sortie formée de segments de bague de sortie d'un récip ient métallurgique basculant

Country Status (9)

Country Link
US (1) US4588169A (fr)
EP (1) EP0141803B1 (fr)
JP (1) JPS6092415A (fr)
KR (1) KR850002292A (fr)
AT (1) AT378538B (fr)
CA (1) CA1222624A (fr)
DE (1) DE3464260D1 (fr)
ES (1) ES8600413A1 (fr)
SU (1) SU1306483A3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3687217D1 (de) * 1985-11-29 1993-01-14 Grundig Emv Verfahren zur herstellung von magnetkoepfen.
CN108163766B (zh) * 2017-12-27 2020-08-07 中北大学 矿用支撑横梁旋转夹紧装置
CN108705074B (zh) * 2018-05-31 2020-09-04 青海盐湖工业股份有限公司 一种抬包转运装置

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 (de) * 1961-05-20 1963-09-12 Hwm Weh Maschf Hermann Vorrichtung zum Herstellen einer aus Formbloecken bestehenden Auskleidung von Behaeltern, insbesondere Konvertern, die Metallschmelzen aufnehmen
BE758793A (fr) * 1969-11-18 1971-04-16 Voest Ag Dispositif de levage hydraulique pour le montage ou le demontage de convertisseurs et de fonds de convertisseurs
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 (de) * 1975-06-10 1977-09-12 Voest Ag Ausmauerungsvorrichtung fur metallurgische gefasse
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 (fr) * 1977-06-27 1980-03-25 Algoma Steel Corporation Pose et depose du couvercle d'un contenant servant a la fabrication de l'acier
DE2903361C2 (de) * 1979-01-29 1982-07-01 Mannesmann AG, 4000 Düsseldorf Transporthubwagen für metallurgische Gefäße, insbesondere für Stahlwerkskonverter

Also Published As

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

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