EP0153552B1 - Plant comprising a refractory-lined metallurgical vessel - Google Patents

Plant comprising a refractory-lined metallurgical vessel Download PDF

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Publication number
EP0153552B1
EP0153552B1 EP84890243A EP84890243A EP0153552B1 EP 0153552 B1 EP0153552 B1 EP 0153552B1 EP 84890243 A EP84890243 A EP 84890243A EP 84890243 A EP84890243 A EP 84890243A EP 0153552 B1 EP0153552 B1 EP 0153552B1
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EP
European Patent Office
Prior art keywords
mouth
vessel
hood
plant according
chimney
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
EP84890243A
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German (de)
French (fr)
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EP0153552A1 (en
Inventor
Friedrich Laimer
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Voestalpine AG
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Voestalpine AG
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Publication of EP0153552A1 publication Critical patent/EP0153552A1/en
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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
    • C21C5/46—Details or accessories
    • 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
    • C21C5/44—Refractory linings
    • C21C5/441—Equipment used for making or repairing linings

Definitions

  • the invention relates to a system with a fireproof-lined metallurgical vessel, in particular a steelwork converter, which is provided at its upper end with an opening which can be connected to a chimney arranged at a distance above the opening by means of a hood which can be inserted between the opening and the chimney Removal of the hood into the space located between the mouth and the chimney, a closure device to be covered downward from the chimney can be introduced by means of a carrying device equipped with at least one lifting device.
  • a fireproof-lined metallurgical vessel in particular a steelwork converter
  • the entire lining material In order to be able to brick out the metallurgical vessel, the entire lining material must be introduced into the vessel from above with vessels with a solid bottom. In the case of a vessel with a removable bottom, only the material for bricking up or pouring the floor joint needs to be introduced into the vessel from above.
  • a system of the type described above is known from DE-U-1972034.
  • the closing device covering the chimney opening is designed as a shield, upon removal of which the slag that has fallen onto the shield is stripped off, so that the slag also falls into the freshly bricked converter in this system.
  • the lifting device provided in the known system can only be moved above the mouth of the converter, so that in order to introduce lining material into the metallurgical vessel, either the bottom of the latter has to be removed or the entire system has to be moved to the side.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a system of the type described at the outset, with which the masonry team cannot be endangered and with which it is possible to introduce the masonry material into the metallurgic vessel in a simple, time-saving manner .
  • closure device is designed as a container with at least one closable bottom opening and the lifting device is arranged to be movable on the carrying device from the side next to the mouth of the vessel to above the mouth of the vessel.
  • the container covering the chimney ensures that parts falling down from the chimney, such as slag deposits, are collected and can no longer fall into the metallurgical vessel when the container is removed.
  • the lifting device which is arranged to be movable on the carrying device, automatically comes into the working position, in which lining materials which are set down to the side of the vessel can be introduced into the vessel.
  • the support device is designed as a frame which can be moved along rails and on which at least one travel rail projecting up to the side next to the mouth of the vessel is provided for the hoist.
  • the travel rail is expediently extended on both sides of the vessel to the side of its mouth and equipped with two hoists.
  • Two mutually parallel rails are advantageously provided for receiving at least one hoist.
  • a preferred embodiment is characterized in that the container is formed by a funnel and has a funnel opening which is located centrally above the mouth and can be closed by means of a slide, the travel rail being arranged just to the side of the funnel opening.
  • the funnel-shaped design of the container enables it to be easily emptied by opening the funnel opening. In the case of a metallurgical vessel with a removable bottom, this can take place before the bottom is put through the vessel into the Schlakkenkeller or, in the case of a vessel with a solid bottom, by lateral movement of the carrying device, the accumulated slag falling into a transportable chute.
  • An embodiment in which the lining material can be brought into the center of the metallurgical vessel is characterized in that the container is formed by two funnels lying next to one another, the travel rail being arranged between the funnels in a plane lying through the vertical axis of the mouth.
  • the carrying device is advantageously provided with a working platform that can be inserted through the mouth into the vessel, which opens up the possibility for metallurgical vessels with a solid floor to brick the vessel from above without having to provide its own scaffolding.
  • the carrying device is advantageously provided with a walk-on web, whereby observation of the interior of the vessel from the mouth of the vessel is possible.
  • the support device can advantageously be moved along the rails that guide the hood and can be coupled to the hood or to a chassis that supports the hood.
  • FIG. 1 showing a partially sectioned side view of a converter system in a schematic illustration according to a first embodiment.
  • 2 shows a likewise partially sectioned side view in the direction of arrow II of FIG. 1.
  • FIGS. 3 and 4 or 5 and 6 show two further advantageous embodiments in representations analogous to FIGS. 1 and 2.
  • the converter 1 designates a steel mill converter which can be tilted about a horizontal axis 2, the mouth 3 of which is located below a stationary chimney 4 when the converter 1 is upright.
  • the converter 1 has a steel jacket 5 and a refractory lining 6 on the inside.
  • the chimney 4 ends at a vertical distance 7 above the mouth 3 of the converter 1.
  • a hood 9 can be inserted by means of a trolley 10, the trolley 10 along both sides of the lower one End 8 of the fireplace 4 arranged rails 11 is movable.
  • the hood 9 has such a dimension that it connects on the one hand to the mouth 3 of the converter 1 and on the other hand to the lower end 8 of the chimney 4, so that exhaust gases emerging from the converter 1 get directly into the chimney 4 without disturbing the environment.
  • a support device 12 can be moved along the rails 11 supporting the hood 9 or its undercarriage 10 by means of wheels 13, which support device 12 is formed by a frame 14 which can be positioned just below the lower end 8 of the chimney 4 and surrounds the chimney peripherally. On this frame 15 vertical struts 16 are provided at the corner points, on which the wheels 13 are mounted.
  • a container 17, which is designed as a funnel, is fastened within the frame 14, the lower funnel opening 18 of which is central, i.e. lies in the vertical axis 19 through the mouth 3.
  • the funnel opening 18 can be closed by means of a slide 20, for the actuation of which a handwheel 21 is provided.
  • the upper funnel opening 22 corresponds in shape and size to the lower end 8 of the chimney 4.
  • a frame 23 is mounted on the side of the lower funnel opening 18 and just adjacent to it, which, as can be seen from FIG. 11, extends from above the mouth 3 to the side next to the converter 1.
  • a lifting device 24 for transporting lining material 25 for the converter 1 can be moved along this travel rail.
  • a walkable web 26 is also attached to the carrying device 12, from which the interior 27 of the converter 1 can be observed when the carrying device 12 is positioned over the mouth 3.
  • the carrying device can be coupled to the movable hood 9 by means of a schematically illustrated coupling 28.
  • a drive not shown
  • the carrying device 12 with the funnel 17 and the lifting device 24 automatically reaches the working position shown in FIGS.
  • an extension 29 of the travel rail 23 is drawn in with dashed lines, which makes it possible to move two lifting devices 24, 24 ′ along the same travel rail 23 from the side next to the converter 1 to above the mouth 3 of the converter.
  • This embodiment is particularly advantageous for a converter 1 with a solid floor that can only be bricked up from above.
  • a single lifting device 24 is sufficient, which only has to bring the material for bricking and pouring the joint between the floor and the converter jacket into the interior 27 of the converter.
  • the container is formed by two adjacent funnels 17, 17 ', the upper openings 22, 22' of the funnels complementing one another in terms of area corresponding to the lower end 8 of the chimney 4.
  • the funnels 17, 17 ' are formed symmetrically to a plane 30 placed through the vertical axis 19 of the chimney 4 or the mouth 3 and parallel to the rails 11. Between the funnels 17, 17 ', the travel rail 23 for the hoist 24 is provided as far as possible from the mouth 3, ie just below the lower end 8 of the chimney 4.
  • the travel rail 23 thus lies in the vertical plane 30 through the vertical axis 19 of the mouth 3, as a result of which the lifting device 24 can be brought into position exactly above the mouth 3 of the converter 1, so that even larger pallets can easily enter the interior 27 of the converter 1 can be lowered.
  • a travel rail 23, 23 ' is provided on each side of the centrically arranged hopper 17 for a hoist 24, 24'.
  • the carrying device 12 additionally carries a work platform 32 which can be raised and lowered by means of cable pulls 31 and which can be adapted to the shape of the interior 27 of the converter 1 by means of lateral arms 33.
  • a drive motor 34 is used to raise and lower the work platform 32, which is coupled via articulated shafts 35 to the drums 36 that wind the cables of the cables 31.

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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)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

Die Erfindung betrifft eine Anlage mit einem feuerfest ausgekleideten metallurgischen Gefäss, insbesondere einem Stahlwerkskonverter, das an seinem oberen Ende mit einer Mündung versehen ist, die an einem im Abstand oberhalb der Mündung angeordneten Kamin mittels einer zwischen Mündung und Kamin einfügbaren Haube anschliessbar ist, wobei nach Entfernung der Haube in den zwischen der Mündung und dem Kamin befindlichen Raum eine dem Kamin nach unten zu abdeckende Verschlusseinrichtung mittels einer mit mindestens einem Hebezeug ausgestatteten Trageinrichtung einbringbar ist.The invention relates to a system with a fireproof-lined metallurgical vessel, in particular a steelwork converter, which is provided at its upper end with an opening which can be connected to a chimney arranged at a distance above the opening by means of a hood which can be inserted between the opening and the chimney Removal of the hood into the space located between the mouth and the chimney, a closure device to be covered downward from the chimney can be introduced by means of a carrying device equipped with at least one lifting device.

Um das metallurgische Gefäss ausmauern zu können, muss bei Gefässen mit festem Boden das gesamte Ausmauerungsmaterial von oben in das Gefäss eingebracht werden. Bei einem Gefäss mit abnehmbarem Boden muss lediglich das Material zum Ausmauern bzw. Vergiessen der Bodenfuge von oben in das Gefäss eingebracht werden.In order to be able to brick out the metallurgical vessel, the entire lining material must be introduced into the vessel from above with vessels with a solid bottom. In the case of a vessel with a removable bottom, only the material for bricking up or pouring the floor joint needs to be introduced into the vessel from above.

Um eine Zugänglichkeit der Mündung des Gefässes zu erreichen, ist es bei Anlagen der eingangs beschriebenen Art (AT-B-356.157, De-B-1583307) bekannt, die zwischen Mündung undIn order to achieve accessibility of the mouth of the vessel, it is known in systems of the type described at the beginning (AT-B-356.157, De-B-1583307), which between the mouth and

Kamin vorgesehene Haube seitlich zu verfahren oder zu heben. Bei Ausmauerungsarbeiten in dem metallurgischen Gefäss ist die Ausmauerungsmannschaft von aus dem Kamin herabfallenden Ansätzen, wie Schlackenstücken, gefährdet. Um eine solche Gefährdung zu verhindern, hat man die untere Kaminöffnung mit Blechen abgedeckt. Dies ist umständlich und zeitraubend. Beim Entfernen der Bleche wurde auf die Bleche herabgefallene Schlacke abgestreift, so dass die Schlacke in den frisch ausgemauerten Konverter fiel. Zum Zweck der Ausmauerung musste man weiters in die Nähe der Mündung transportable Bühnenteile aufbauen, über welche Bühnenteile das Ausmauerungsmaterial vom Hallenkranbereich zur Mündung bringbar war. Zum Absenken des Ausmauerungsmaterials musste ein eigenes Hebezeug an der Bühne montiert werden.Move the hood provided to the side of the chimney or lift it. When lining work in the metallurgical vessel, the lining team is at risk of deposits falling out of the chimney, such as pieces of slag. In order to prevent such a hazard, the lower chimney opening was covered with metal sheets. This is cumbersome and time consuming. When the sheets were removed, slag which had fallen down on the sheets was scraped off, so that the slag fell into the freshly bricked converter. For the purpose of the lining, it was also necessary to build transportable stage parts in the vicinity of the mouth, via which stage parts the lining material could be brought from the hall crane area to the mouth. To lower the lining material, a separate hoist had to be installed on the stage.

Eine Anlage der eingangs beschriebenen Art ist aus der DE-U-1972034 bekannt. Bei dieser bekannten Anlage ist die die Kaminöffnung abdekkende Verschlusseinrichtung als Schild ausgebildet, bei dessen Entfernen die auf das Schild herabgefallene Schlacke abgestreift wird, so dass auch bei dieser Anlage die Schlacke in den frisch ausgemauerten Konverter fällt. Das bei der bekannten Anlage vorgesehene Hebezeug ist lediglich oberhalb der Mündung des Konverters verfahrbar, so dass zum Einbringen von Ausmauerungsmaterial in das metallurgische Gefäss entweder dessen Boden entfernt werden muss oder die gesamte Anlage zur Seite verfahren werden muss.A system of the type described above is known from DE-U-1972034. In this known system, the closing device covering the chimney opening is designed as a shield, upon removal of which the slag that has fallen onto the shield is stripped off, so that the slag also falls into the freshly bricked converter in this system. The lifting device provided in the known system can only be moved above the mouth of the converter, so that in order to introduce lining material into the metallurgical vessel, either the bottom of the latter has to be removed or the entire system has to be moved to the side.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Anlage der eingangs beschriebenen Art zu schaffen, mit der eine Gefährung der Ausmauerungsmannschaft ausgeschlossen ist und mit der es möglich ist, auf einfache zeitsparende Weise das Aufsmauerungsmaterial in das metallürgische Gefäss einzubringen.The invention aims at avoiding these disadvantages and difficulties and has as its object to create a system of the type described at the outset, with which the masonry team cannot be endangered and with which it is possible to introduce the masonry material into the metallurgic vessel in a simple, time-saving manner .

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Verschlusseinrichtung als Behälter mit mindestens einer verschliessbaren Bodenöffnung ausgebildet ist und das Hebezeug von seitlich neben der Mündung des Gefässes bis oberhalb der Mündung des Gefässes an der Trageinrichtung verfahrbar angeordnet ist.This object is achieved according to the invention in that the closure device is designed as a container with at least one closable bottom opening and the lifting device is arranged to be movable on the carrying device from the side next to the mouth of the vessel to above the mouth of the vessel.

Der den Kamin abdeckende Behälter sorgt dafür, dass aus dem Kamin herabfallende Teile, wie Schlackenansätze, gesammelt werden und bei Entfernen des Behälters nicht mehr in das metallurgische Gefäss stürzen können. Das an der Trageinrichtung verfahrbar angeordnete Hebezeug gelangt bei Instellungbringen des Behälters automatisch in die Arbeitsposition, bei der seitlich neben dem Gefäss abgesetzte Ausmauerungsmaterialien in das Gefäss eingebracht werden können.The container covering the chimney ensures that parts falling down from the chimney, such as slag deposits, are collected and can no longer fall into the metallurgical vessel when the container is removed. When the container is brought into position, the lifting device, which is arranged to be movable on the carrying device, automatically comes into the working position, in which lining materials which are set down to the side of the vessel can be introduced into the vessel.

Gemäss einer bevorzugten Ausführungsform ist die Trageinrichtung als entlang von Schienen verfahrbarer Rahmen ausgebildet, an dem mindestens eine bis seitlich neben die Mündung des Gefässes ragende Fahrschiene für das Hebezeug vorgesehen ist.According to a preferred embodiment, the support device is designed as a frame which can be moved along rails and on which at least one travel rail projecting up to the side next to the mouth of the vessel is provided for the hoist.

Für ein rationelles Arbeiten bei einfacher Konstruktion ist zweckmässig die Fahrschiene nach beiden Seiten des Gefässes bis seitlich dessen Mündung verlängert ausgebildet und mit zwei He- bezeugen ausgestattet.For efficient work with a simple construction, the travel rail is expediently extended on both sides of the vessel to the side of its mouth and equipped with two hoists.

Vorteilhaft sind zwei zueinander parallele Fahrschienen zur Aufnahme jeweils mindestens eines Hebezeuges vorgesehen.Two mutually parallel rails are advantageously provided for receiving at least one hoist.

Eine bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass der Behälter von einem Trichter gebildet ist und eine zentral über der Mündung liegende, mittels eines Schiebers verschliessbare Trichteröffnung aufweist, wobei die Fahrschiene knapp seitlich neben der Trichteröffnung angeordnet ist. Die trichterförmige Ausbildung des Behälters ermöglicht eine einfache Entleerung desselben durch Öffnen der Trichteröffnung. Dies kann bei einem metallurgischen Gefäss mit abnehmbarem Boden vor Ansetzen des Bodens durch das Gefäss hindurch in den Schlakkenkeller bzw. bei einem Gefäss mit festem Boden nach seitlichem Verfahren der Trageinrichtung erfolgen, wobei die angesammelte Schlacke in eine transportable Schurre fällt.A preferred embodiment is characterized in that the container is formed by a funnel and has a funnel opening which is located centrally above the mouth and can be closed by means of a slide, the travel rail being arranged just to the side of the funnel opening. The funnel-shaped design of the container enables it to be easily emptied by opening the funnel opening. In the case of a metallurgical vessel with a removable bottom, this can take place before the bottom is put through the vessel into the Schlakkenkeller or, in the case of a vessel with a solid bottom, by lateral movement of the carrying device, the accumulated slag falling into a transportable chute.

Eine Ausführungsform, bei der das Ausmauerungsmaterial in das Zentrum des metallurgischen Gefässes bringbar ist, ist dadurch gekennzeichnet, dass der Behälter von zwei nebeneinanderliegenden Trichtern gebildet ist, wobei die Fahrschiene zwischen den Trichtern liegend in einer durch die vertikale Achse der Mündung gelegten Ebene angeordnet ist.An embodiment in which the lining material can be brought into the center of the metallurgical vessel is characterized in that the container is formed by two funnels lying next to one another, the travel rail being arranged between the funnels in a plane lying through the vertical axis of the mouth.

Vorteilhaft ist die Trageinrichtung mit einer durch die Mündung in das Gefäss einbringbaren Arbeitsbühne versehen, wodurch sich für metallurgische Gefässe mit einem festen Boden die Möglichkeit eröffnet, das Gefäss von oben her auszumauern, ohne ein eigenes Gerüst vorzusehen.The carrying device is advantageously provided with a working platform that can be inserted through the mouth into the vessel, which opens up the possibility for metallurgical vessels with a solid floor to brick the vessel from above without having to provide its own scaffolding.

Vorteilhaft ist die Trageinrichtung mit einem begehbaren Steg versehen, wodurch eine Beobachtung des Gefässinneren von der Mündung des Gefässes her möglich ist.The carrying device is advantageously provided with a walk-on web, whereby observation of the interior of the vessel from the mouth of the vessel is possible.

Bei einer Anlage mit einer entlang von Schienen verfahrbaren Haube ist vorteilhaft die Trageinrichtung entlang der die Haube führenden Schienen verfahrbar und an die Haube bzw. ein die Haube tragendes Fahrwerk ankuppelbar.In the case of a system with a hood that can be moved along rails, the support device can advantageously be moved along the rails that guide the hood and can be coupled to the hood or to a chassis that supports the hood.

Die Erfindung ist nachfolgend anhand dreier Ausführungsbeispiele näher erläutert, wobei Fig. 1 eine teilweise geschnittene Seitenansicht einer Konverteranlage in schematischer Darstellung gemäss einer ersten Ausführungsform zeigt. Fig.2 2 stellt eine ebenfalls teilweise geschnittene Seitenansicht in Richtung des Pfeiles II der Fig. 1 dar. Die Fig. 3 und 4 bzw. 5 und 6 zeigen in zu den Fig.1 und 2 analogen Darstellungen zwei weitere vorteilhafte Ausführungsformen.The invention is explained in more detail below on the basis of three exemplary embodiments, with FIG. 1 showing a partially sectioned side view of a converter system in a schematic illustration according to a first embodiment. 2 shows a likewise partially sectioned side view in the direction of arrow II of FIG. 1. FIGS. 3 and 4 or 5 and 6 show two further advantageous embodiments in representations analogous to FIGS. 1 and 2.

Mit 1 ist ein um eine horizontale Achse 2 kippbarer Stahlwerkskonverter bezeichnet, dessen Mündung 3 sich bei aufrecht stehendem Konverter 1 unterhalb eines ortsfesten Kamins 4 befindet. Der Konverter 1 weist einen Stahlmantel 5 und innenseitig ein feuerfeste Auskleidung 6 auf. Der Kamin 4 endet in vertikalem Abstand 7 oberhalb der Mündung 3 des Konverters 1. Zwischen dem unteren Ende 8 des Kamins 4 und der Mündung 3 des Konverters 1 ist eine Haube 9 mittels eines Fahrwerkes 10 einbringbar, wobei das Fahrwerk 10 entlang von beiderseits des unteren Endes 8 des Kamines 4 angeordneten Schienen 11 verfahrbar ist. Die Haube 9 weist eine solche Abmessung auf, dass sie einerseits an die Mündung 3 des Konverters 1 und andererseits an das untere Ende 8 des Kamines 4 anschliesst, so dass aus dem Konverter 1 austretende Abgase ohne Belästigung der Umwelt direkt in den Kamin 4 gelangen.1 designates a steel mill converter which can be tilted about a horizontal axis 2, the mouth 3 of which is located below a stationary chimney 4 when the converter 1 is upright. The converter 1 has a steel jacket 5 and a refractory lining 6 on the inside. The chimney 4 ends at a vertical distance 7 above the mouth 3 of the converter 1. Between the lower end 8 of the chimney 4 and the mouth 3 of the converter 1, a hood 9 can be inserted by means of a trolley 10, the trolley 10 along both sides of the lower one End 8 of the fireplace 4 arranged rails 11 is movable. The hood 9 has such a dimension that it connects on the one hand to the mouth 3 of the converter 1 and on the other hand to the lower end 8 of the chimney 4, so that exhaust gases emerging from the converter 1 get directly into the chimney 4 without disturbing the environment.

Entlang der die Haube 9 bzw. deren Fahrwerk 10 tragenden Schienen 11 ist erfindungsgemäss eine Trageinrichtung 12 mittels Rädern 13 verfahrbar, welche Trageinrichtung 12 von einem knapp unterhalb des unteren Endes 8 des Kamins 4 in Stellung bringbaren, den Kamin peripher umgebenden Rahmen 14 gebildet ist. An diesem Rahmen sind an den Eckpunkten 15 vertikale Streben 16 vorgesehen, an denen die Räder 13 gelagert sind. Innerhalb des Rahmens 14 ist ein Behälter 17, der als Trichter ausgebildet ist, befestigt, dessen untere Trichteröffnung 18 zentral, d.h. in der durch die Mündung 3 gelegten vertikalen Achse 19 liegt. Die Trichteröffnung 18 ist mittels eines Schiebers 20, zu dessen Betätigung ein Handrad 21 vorgesehen ist, verschliessbar. Die obere Trichteröffnung 22 entspricht in Form und Grösse dem unteren Ende 8 des Kamines 4. _ _ _ _According to the invention, a support device 12 can be moved along the rails 11 supporting the hood 9 or its undercarriage 10 by means of wheels 13, which support device 12 is formed by a frame 14 which can be positioned just below the lower end 8 of the chimney 4 and surrounds the chimney peripherally. On this frame 15 vertical struts 16 are provided at the corner points, on which the wheels 13 are mounted. A container 17, which is designed as a funnel, is fastened within the frame 14, the lower funnel opening 18 of which is central, i.e. lies in the vertical axis 19 through the mouth 3. The funnel opening 18 can be closed by means of a slide 20, for the actuation of which a handwheel 21 is provided. The upper funnel opening 22 corresponds in shape and size to the lower end 8 of the chimney 4. _ _ _ _

An dem Rahmen 14 ist seitlich der unteren Trichteröffnung 18 und dieser knapp benachbart eine Fahrschiene 23 montiert, die, wie aus Fig.1 1 ersichtlich ist, von oberhalb der Mündung 3 bis seitlich neben den Konverter 1 reicht. Entlang dieser Fahrschiene ist ein Hebezeug 24 zum Transport von Ausmauerungsmaterial 25 für den Konverter 1 verfahrbar.A frame 23 is mounted on the side of the lower funnel opening 18 and just adjacent to it, which, as can be seen from FIG. 11, extends from above the mouth 3 to the side next to the converter 1. A lifting device 24 for transporting lining material 25 for the converter 1 can be moved along this travel rail.

An der Trageinrichtung 12 ist weiters ein begehbarer Steg 26 befestigt, von dem aus bei über der Mündung 3 in Stellung gebrachter Trageinrichtung 12 der Innenraum 27 des Konverters 1 beobachtbar ist.A walkable web 26 is also attached to the carrying device 12, from which the interior 27 of the converter 1 can be observed when the carrying device 12 is positioned over the mouth 3.

Um einen eigenen Antrieb für die Trageinrichtung zu vermeiden, ist die Trageinrichtung mittels einer schematisch dargestellten Kupplung 28 an die verfahrbare Haube 9 kuppelbar. Sobald die Haube 9 mittels eines nicht dargestellten Antriebs von der Mündung 3 des Konverters 1 weg verfahren wird, gelangt die Trageinrichtung 12 mit dem Trichter 17 und dem Hebezeug 24 automatisch in die in den Fig. und 2 dargestellte Arbeitsposition.In order to avoid a separate drive for the carrying device, the carrying device can be coupled to the movable hood 9 by means of a schematically illustrated coupling 28. As soon as the hood 9 is moved away from the mouth 3 of the converter 1 by means of a drive (not shown), the carrying device 12 with the funnel 17 and the lifting device 24 automatically reaches the working position shown in FIGS.

In Fig. ist mit strichlierten Linien eine Verlängerung 29 der Fahrschiene 23 eingezeichnet, wodurch es möglich ist, zwei Hebezeuge 24, 24' entlang derselben Fahrschiene 23 von seitlich neben dem Konverter 1 bis oberhalb der Mündung 3 des Konverters zu verfahren. Diese Ausführungsform ist insbesondere für einen Konverter 1 mit festem Boden, der nur von oben ausgemauert werden kann, vorteilhaft. Für einen Konverter mit abnehmbarem Boden - solche Konverter werden vorzugsweise von unten her ausgemauert - genügt ein einziges Hebezeug 24, welches nur das Material zum Ausmauern und Vergiessen der Fuge zwischen Boden und Konvertermantel in den Innenraum 27 des Konverters bringen muss.In FIG. 1, an extension 29 of the travel rail 23 is drawn in with dashed lines, which makes it possible to move two lifting devices 24, 24 ′ along the same travel rail 23 from the side next to the converter 1 to above the mouth 3 of the converter. This embodiment is particularly advantageous for a converter 1 with a solid floor that can only be bricked up from above. For a converter with a removable bottom - such converters are preferably bricked up from below - a single lifting device 24 is sufficient, which only has to bring the material for bricking and pouring the joint between the floor and the converter jacket into the interior 27 of the converter.

Gemäss der in den Fig.3 und 4 dargestellten Ausführungsform ist der Behälter von zwei nebeneinanderliegenden Trichtern 17, 17' gebildet, wobei die oberen Öffnungen 22, 22' der Trichter einander flächenmässig entsprechend dem unteren Ende 8 des Kamines 4 ergänzen. Die Trichter 17,17' sind symmetrisch zu einer durch die vertikale Achse 19 des Kamines 4 bzw. der Mündung 3 und parallel zu den Schienen 11 gelegten Ebene 30 ausgebildet. Zwischen den Trichtern 17, 17' ist in möglichst grossem Abstand von der Mündung 3, also knapp unterhalb des unteren Endes 8 des Kamines 4, die Fahrschiene 23 für das Hebezeug 24 vorgesehen. Die Fahrschiene 23 liegt somit in der durch die vertikale Achse 19 der Mündung 3 gelegten Vertikalbene 30, wodurch das Hebezeug 24 genau zentrisch oberhalb der Mündung 3 des Konverters 1 in Stellung gebracht werden kann, so dass auch grössere Paletten leicht in den Innenraum 27 des Konverters 1 abgesenkt werden können.According to the embodiment shown in FIGS. 3 and 4, the container is formed by two adjacent funnels 17, 17 ', the upper openings 22, 22' of the funnels complementing one another in terms of area corresponding to the lower end 8 of the chimney 4. The funnels 17, 17 'are formed symmetrically to a plane 30 placed through the vertical axis 19 of the chimney 4 or the mouth 3 and parallel to the rails 11. Between the funnels 17, 17 ', the travel rail 23 for the hoist 24 is provided as far as possible from the mouth 3, ie just below the lower end 8 of the chimney 4. The travel rail 23 thus lies in the vertical plane 30 through the vertical axis 19 of the mouth 3, as a result of which the lifting device 24 can be brought into position exactly above the mouth 3 of the converter 1, so that even larger pallets can easily enter the interior 27 of the converter 1 can be lowered.

Gemäss der in den Fig.5 und 6 dargestellten Ausführungsform ist beiderseits des zentrisch angeordneten Trichters 17 jeweils eine Fahrschiene 23, 23' für jeweils ein Hebezeug 24, 24' vorgesehen. Die Trageinrichtung 12 trägt zusätzlich eine mittels Seilzügen 31 heb- und senkbare Arbeitsbühne 32, die mittels seitlicher Ausleger 33 der Form des Innenraumes 27 des Konverters 1 angepasst werden kann. Zum Heben und Senken der Arbeitsbühne 32 dient ein Antriebsmotor 34, der über Gelenkwellen 35 mit den die Seile der Seilzüge 31 aufwickelnden Trommeln 36 gekoppelt ist.According to the embodiment shown in FIGS. 5 and 6, a travel rail 23, 23 'is provided on each side of the centrically arranged hopper 17 for a hoist 24, 24'. The carrying device 12 additionally carries a work platform 32 which can be raised and lowered by means of cable pulls 31 and which can be adapted to the shape of the interior 27 of the converter 1 by means of lateral arms 33. A drive motor 34 is used to raise and lower the work platform 32, which is coupled via articulated shafts 35 to the drums 36 that wind the cables of the cables 31.

Bei den in den Fig. und 4 bzw. 5 und 6 dargestellten Ausführungsformen ist es ebenfalls möglich, die Fahrschienen nach beiden Seiten neben die Mündung des Stahlwerkskonverters zu führen, so dass je Fahrschiene zwei Hebezeuge vorgesehen werden können.In the embodiments shown in FIGS. 4 and 5 and 6, it is also possible Lich, the rails on both sides next to the mouth of the steelworks converter, so that two hoists can be provided for each rail.

Claims (9)

1. Plant with a refractorily lined metallurgical vessel, in particular a steel works converter (1), which is provided with a mouth (3) at the upper end thereof, which mouth (3) is connectable to a chimney (4) arranged at a distance (7) above said mouth (3) by means of a hood (9) insertable between mouth (3) and chimney (4), a closing device (17,17') downwardly covering said chimney, after removal of the hood (9), being introduceable into the space located between the mouth (3) and the chimney (4) by means of a carrying device (12) provided with at least one hoist (24, 24'), characterised in that the closing device is designed as a container (17, 17') with at least one closeable bottom orifice (18, 18') and the hoist (24, 24') is arranged on said carrying device to be displaceable from laterally beside the mouth (3) of the vessel (1) to above the mouth (3) of the vessel (1).
2. Plant according to claim 1, characterised in that the carrying device (12) is designed as a frame (14) displaceable along rails (11), on which frame at least one runner (23, 23') for the hoist (24, 24') is provided projecting to laterally beside the mouth (3) of the vessel (1).
3. Plant according to claim 1 or 2, characterised in that the runner (23) is elongated to both sides of the vessel (1) to lateral of its mouth (3) and carries two hoists (24, 24').
4. Plant according to claims 1 to 3, characterised in that two parallel runners (23, 23') are provided to accommodate at least one hoist (24, 24') each.
5. Plant according to claims 1 to 4, characterised in that the container is formed by a hopper (17) and has a hopper orifice (18) disposed centrally above the mouth (3) and closeable by a slide (20), the runner (23) being arranged closely beside the hopper orifice (18).
6. Plant according to claims 1 to 4, characterised in that the container is formed by two adjacently arranged hoppers (17, 17'), the runner (23) being arranged so as to lie between the hoppers (17,17') in a plane (30) laid through the vertical axis (19) of the mouth (3).
7. Plant according to claims 1 to 6, characterised in that the carrying device (12) is provided with an operation platform (32) introduceable into the vessel (1) through the mouth (3).
8. Plant according to claims 1 to 7, characterised in that the carrying device (12) is provided with an accessible path (26).
9. Plant according to claims 1 to 8 with a hood (9) displaceable along rails (11), characterised in that the carrying device (12) is displaceable along the rails (11) guiding the hood (9) and is connectable to the hood (9) or to a moving mechanism (10) carrying the hood (9).
EP84890243A 1984-01-09 1984-12-13 Plant comprising a refractory-lined metallurgical vessel Expired EP0153552B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0003384A AT381956B (en) 1984-01-09 1984-01-09 PLANT WITH A REFINERELY LINED METALLURGICAL VESSEL
AT33/84 1984-01-09

Publications (2)

Publication Number Publication Date
EP0153552A1 EP0153552A1 (en) 1985-09-04
EP0153552B1 true EP0153552B1 (en) 1988-02-17

Family

ID=3479747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84890243A Expired EP0153552B1 (en) 1984-01-09 1984-12-13 Plant comprising a refractory-lined metallurgical vessel

Country Status (8)

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US (1) US4561638A (en)
EP (1) EP0153552B1 (en)
JP (1) JPS60159106A (en)
KR (1) KR920004675B1 (en)
AT (1) AT381956B (en)
DD (1) DD232929A5 (en)
DE (1) DE3469369D1 (en)
ES (1) ES539224A0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100880920B1 (en) * 2008-09-09 2009-02-02 한국지역난방기술 (주) White smoke reducing system for smokestack
CN106276569B (en) * 2015-06-12 2018-06-26 中冶宝钢技术服务有限公司 It is remotely controlled adjustable lifting
KR102010054B1 (en) * 2017-11-16 2019-08-12 주식회사 포스코 Apparatus for changing disc suspension of converter vessel
CN108946470B (en) * 2018-07-09 2019-11-15 莱芜钢铁集团有限公司 A kind of replacing options for converter entirety flue
CN111575437A (en) * 2020-07-09 2020-08-25 广东韶钢松山股份有限公司 Device and method for replacing movable smoke hood of converter

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1433434A1 (en) * 1963-12-10 1969-09-18 Krupp Gmbh Swiveling gas hood for metallurgical vessels, e.g. Oxygen top-up converter
AT249720B (en) * 1964-02-13 1966-10-10 Voest Ag Device for removing and transporting covers for converters or crucibles as well as for renewing the refractory masonry and relining processes for such converters using this device
AT284178B (en) * 1965-12-06 1970-09-10 Waagner Biro Ag Device for operating metallurgical furnaces, in particular steel works converters, with extraction hoods
AT266894B (en) * 1966-08-02 1968-12-10 Voest Ag Converter system
DE1972034U (en) * 1967-08-05 1967-11-09 Oschatz G M B H DEVICE FOR REPAIR OF CONVERTERS.
US3580556A (en) * 1968-04-18 1971-05-25 Bethlehem Steel Corp Safety shield for a fume-collecting apparatus
DE1807434C3 (en) * 1968-11-07 1975-10-09 Demag Ag, 4100 Duisburg Work platform device for metallurgical melting furnaces, especially for steel works converters
US4061319A (en) * 1975-08-29 1977-12-06 United States Steel Corporation Mobile truck for relining a converter
AT356157B (en) * 1977-02-21 1980-04-10 Voest Alpine Ag PLANT FOR FRESH IRON
US4253646A (en) * 1978-10-09 1981-03-03 Nippon Steel Corporation Hot blast-furnace-lining repairing apparatus

Also Published As

Publication number Publication date
JPH0477047B2 (en) 1992-12-07
KR920004675B1 (en) 1992-06-13
AT381956B (en) 1986-12-29
DD232929A5 (en) 1986-02-12
KR850005505A (en) 1985-08-26
ATA3384A (en) 1986-05-15
JPS60159106A (en) 1985-08-20
US4561638A (en) 1985-12-31
ES8600411A1 (en) 1985-10-01
DE3469369D1 (en) 1988-03-24
ES539224A0 (en) 1985-10-01
EP0153552A1 (en) 1985-09-04

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