EP0372286B1 - Apparatus for installing cooling elements in the interior of a blast furnace - Google Patents

Apparatus for installing cooling elements in the interior of a blast furnace Download PDF

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Publication number
EP0372286B1
EP0372286B1 EP89121426A EP89121426A EP0372286B1 EP 0372286 B1 EP0372286 B1 EP 0372286B1 EP 89121426 A EP89121426 A EP 89121426A EP 89121426 A EP89121426 A EP 89121426A EP 0372286 B1 EP0372286 B1 EP 0372286B1
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EP
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Prior art keywords
carrying
adjustment
carrying gear
blast furnace
cooling elements
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EP89121426A
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German (de)
French (fr)
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EP0372286A1 (en
Inventor
Gerd Bruns
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Krupp Montage und Servicetechnik GmbH
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Krupp Montage und Servicetechnik GmbH
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/10—Cooling; Devices therefor

Definitions

  • the invention relates to a device with a liftable and lowerable horizontal assembly platform and a receiving means for mounting cooling segments on the inside of the steel sheet of a blast furnace.
  • blast furnaces have cooling plates or segments (so-called staves) arranged evenly distributed around the circumference between the outer steel or armor plate and the inner refractory lining.
  • Each cooling segment is attached to the steel sheet and has its own connections for the inlet and outlet of the cooling medium. These connections are led outside through holes in the armor plate.
  • the cooling segments - seen in a horizontal cross section - are either rectangular or in the form of a circular ring segment.
  • a mounting platform which can be adjusted in height by means of a lifting device and a further lifting device provided with a receiving means at the upper end of the blast furnace have hitherto been used.
  • the footprint of the assembly platform can be changed and thus adaptable to the respective diameter of the blast furnace.
  • the cooling segments while hanging on the upper lifting device, have to be pressed laterally towards the armor plates due to the taper of the blast furnace against at least a partial component of their gravity, which gives them a considerable weight of around 2.5 ... 6 t Difficulties connected and is accordingly time consuming.
  • time-consuming, sensitive changes in the position of the cooling segments are often necessary, both in terms of their height, their lateral position and their angular position.
  • the invention has for its object to design a device of the type mentioned for mounting cooling segments in such a way that the assembly of the cooling segments can be significantly accelerated.
  • the assembly platform has rails arranged concentrically to the axis of the blast furnace, that a support frame designed as a vehicle frame can be moved on these rails, which has a support part which can be moved relative to one another and on which the receiving means for the cooling segments is in turn arranged, wherein the receiving means has a substantially horizontal receiving part and a substantially vertical contact part, that adjustment means are provided for height adjustment of the receiving means relative to the assembly platform and for inclination adjustment in the longitudinal and transverse directions, and that the position of the Recording means is also adjustable about a vertical vertical axis and in the radial direction.
  • cooling segments are fastened to the steel sheet and each have a space or gap between them, the receiving part being able to move into the space. This makes it possible to mount the cooling segments both from the bottom up and from the top down. If the steel or jacket plate of the blast furnace is initially only present in the upper region of the blast furnace frame, the top rows of cooling segments can already be installed with the device according to the invention. By lowering the assembly platform, the lower-lying rows of cooling segments can be used - unlike with a receiving means that attacks from above, e.g. a crane hook - then be assembled. If necessary, individual cooling segments can also be replaced.
  • the rails arranged around the axis of the blast furnace make it possible to leave a central passage in the assembly platform.
  • a heavy central hoist can pass through the opening and be used to assemble other, heavy parts of the blast furnace.
  • a swivel arm is mounted on the support or vehicle frame, on the movable end of which the receiving means for the cooling segments is arranged.
  • the effective radius of the receiving means for the cooling segments (hereinafter also referred to as "cooling segment receptacle") can be changed over a wide range, the radial alignment of the cooling segment receptacle with respect to the blast furnace or to a horizontal plane thereof due to the pivotability the cooling segment can be mounted in relation to the swivel arm.
  • the adjustment means for height adjustment the height of the cooling segment receptacle can be sensitively changed relative to the mounting platform which can be roughly adjusted in height.
  • the inclination of the cooling segment receptacle can also be adapted to the local conditions of the blast furnace.
  • the adjustment means can be summarized both for the height adjustment and for the bank angle.
  • these are preferably designed as hydraulic cylinders arranged separately under the cooling segment receptacle.
  • the hydraulic cylinders are operated simultaneously and to the same extent and to adjust the inclination differently.
  • the means for height adjustment are arranged only at the front end under the hinge.
  • the one made at one end only The change in inclination of the cooling segment receptacle that occurs when the height is adjusted can be corrected by means of the specially provided adjustment device.
  • the construction carrying the cooling segment receptacle according to claim 6 consists of a subframe pivotably mounted on the pivoting arm and a frame supported on this, the position of which can be adjusted relative to the subframe is.
  • the device for mounting cooling segments 1 has a supporting structure 3 which is supported in the upper part of a blast furnace 2 and on which lifting devices 4 are arranged which are evenly distributed over the circumference and by means of which a mounting platform 5 can be raised and lowered within the blast furnace 2 by means of ropes 6.
  • the assembly platform 5 has radially oriented, telescopic cantilever beams 7, with the aid of which the area of the assembly platform 5 can be enlarged in a known manner.
  • the assembly platform 5 has a recess 8 through which the receiving means, e.g. a crane hook, a central lifting device 9 can be carried out.
  • the cooling segments 1 can be gripped both by a lifting device 9 arranged in the middle of the upper support frame 3, pulled through the recess 8 and placed on the receptacle 28, and introduced through an opening in the upper region of the blast furnace and by one in the upper region of the blast furnace located further lifting device 9 'are placed on the assembly platform 5 or the receptacle 28.
  • a so-called king column 20 with a vertical axis around which a swivel beam or swivel arm 21 is pivotably mounted and in any way, e.g. can be driven via a (not shown) manually operated rotary drive.
  • an auxiliary frame 22 is in turn pivotally mounted about a vertical axis 23.
  • a frame 27 is mounted on this subframe 22 via three pendulum supports 24, 25, 26 with double joints, on which in turn the actual cooling segment receptacle 28 is arranged.
  • the drive of the vehicle frame 14 or the entire assembly carriage 13 takes place via the wheels 15 ', which are in the swivel range of the swivel arm 21 and the cooling segment receptacles 28.
  • These wheels 15 ' are rigidly connected to one another via their common axis and are connected together via the axis to a drive motor 18.
  • the running wheels 15 'on the rails 11 and 12' have different diameters which relate to one another like the diameter or radii of the rails 11 and 12.
  • the running surfaces of the running wheels 15 'are conical, both of them Treads each represent part of an (imaginary) conical surface, which is given by the diameter of the running wheel 15 'on the outer rail 11' and the radius of the rail 11.
  • the two other wheels 15 ⁇ can be designed analogously or individually mounted on the vehicle frame 14.
  • an adjusting device 29 designed as a pressure medium cylinder is provided between the frame 27 and the auxiliary frame 22.
  • a manually operated spindle drive with an easily accessible handwheel can also be provided as the adjusting device.
  • Two pendulum supports 24, 25 are supported on piston rods of hydraulic cylinders 31 and 32, which are mounted on or in the auxiliary frame 22.
  • a vertical guide column 33 which is immovable with respect to the base area, is guided in the auxiliary frame 22 without its own drive and is connected to the frame 27 via a guide 34 designed as an elongated hole connection.
  • This connection allows a relative movement of the frame 27 and thus the cooling segment receptacle 28 with respect to the auxiliary frame 22 in the longitudinal direction, but prevents a relative movement in the (horizontal) transverse direction.
  • the cooling segment receptacle 28 At the end located above the hydraulic cylinders 31, 32 is the cooling segment receptacle 28 with a horizontal, platform-like receptacle or Support 36 and a vertical system 37 mounted on the frame 27 via a horizontal hinge joint 38.
  • the cooling segment support 28 is connected with its vertical contact 37 to the rear end of the intermediate frame 27 via an adjusting or adjusting device 39 designed as a turnbuckle with opposite thread pitches, so that the inclination of the cooling segment receptacle 28 can be changed in the longitudinal direction, ie around the axis 38 , both clockwise and counterclockwise.
  • a pressure medium cylinder can also be used.
  • the pivot arm 21 of the assembly carriage 13 is shown in any position.
  • the swivel arm 21 (not shown separately) extends radially outwards, the diameter of the rails 11, 12 being dimensioned accordingly.
  • the swivel arm 21 must be pivoted laterally accordingly (cf. the dash-dotted line in FIG. 3).
  • the swivel arm 21 is pivoted radially inward toward the central recess or opening 8 of the assembly platform 5.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A liftable and lowerable installation platform (5) is provided with rails (11, 12) which are arranged concentrically about the axis (2') of the blast furnace (2) and on which an installation device (13) can travel. The installation device (13) consists of a vehicle frame (14), a swivel arm (21) arranged thereon and a receiving means (28) located on the latter and having an essentially horizontal support part (36) and an essentially perpendicular locating part (37). The receiving means (28) can be sensitively adjusted in its longitudinal and transverse inclination as well as in its height and its radial orientation. A platform-like design of the support part (36) enables cooling elements (1) to be taken hold of from below and the receiving part (36) to move into the gap between two cooling elements (1) arranged one above the other. The novel device enables the cooling elements to be installed from top to bottom as well as from bottom to top and even enables individual cooling elements to be exchanged.

Description

Die Erfindung betrifft eine Einrichtung mit einer heb- und senkbaren waagerechten Montagebühne und einem Aufnahmemittel zum Montieren von Kühlsegmenten an der Innenseite des Stahlblechs eines Hochofens.The invention relates to a device with a liftable and lowerable horizontal assembly platform and a receiving means for mounting cooling segments on the inside of the steel sheet of a blast furnace.

Bei einer Ausführungsform weisen Hochöfen zwischen dem äußeren Stahl- oder Panzerblech und der inneren feuerfesten Auskleidung gleichmäßig am Umfang verteilt angeordnete Kühlplatten bzw. -segmente (sog. Staves) auf. Jedes Kühlsegment wird für sich am Stahlblech befestigt und hat eigene Anschlüsse für den Zu- und Ablauf des Kühlmediums. Diese Anschlüsse werden durch im Panzerblech vorhandene Löcher nach draußen geführt. Je nach Breite bzw. Umfangswinkel sind die Kühlsegmente - in einem waagerechten Querschnitt gesehen - entweder rechteckförmig oder in Form eines Kreisringsegments ausgebildet.In one embodiment, blast furnaces have cooling plates or segments (so-called staves) arranged evenly distributed around the circumference between the outer steel or armor plate and the inner refractory lining. Each cooling segment is attached to the steel sheet and has its own connections for the inlet and outlet of the cooling medium. These connections are led outside through holes in the armor plate. Depending on the width or circumferential angle, the cooling segments - seen in a horizontal cross section - are either rectangular or in the form of a circular ring segment.

Zur Montage der Kühlsegmente benutzt man bisher eine durch eine Hubeinrichtung in der Höhe einstellbare Montagebühne und eine mit einem Aufnahmemittel versehene weitere Hubeinrichtung am oberen Ende des Hochofens. Die Montagebühne ist dabei in ihrer Grundfläche veränderbar und somit dem jeweiligen Durchmesser des Hochofens anpaßbar. Zur Montage müssen die Kühlsegmente, während sie an der oberen Hubeinrichtung hängen, wegen der Konizität des Hochofens entgegen zumindest einer Teilkomponente ihrer Schwerkraft seitlich in Richtung auf die Panzerbleche gedrückt werden, was ihres erheblichen Gewichts von etwa 2,5...6 t mit erheblichen Schwierigkeiten verbunden und entsprechend zeitaufwendig ist. Ehe die Kühlmittelanschlüsse der Kühlsegmente durch die dafür vorgesehenen Löcher der Panzerbleche geschoben werden können, sind oft zeitraubende feinfühlige Veränderungen der Lage der Kühlsegmente sowohl hinsichtlich ihrer Höhe, ihrer seitlichen Lage als auch ihrer Winkellage erforderlich.To assemble the cooling segments, a mounting platform which can be adjusted in height by means of a lifting device and a further lifting device provided with a receiving means at the upper end of the blast furnace have hitherto been used. The footprint of the assembly platform can be changed and thus adaptable to the respective diameter of the blast furnace. For assembly, the cooling segments, while hanging on the upper lifting device, have to be pressed laterally towards the armor plates due to the taper of the blast furnace against at least a partial component of their gravity, which gives them a considerable weight of around 2.5 ... 6 t Difficulties connected and is accordingly time consuming. Before the coolant connections of the cooling segments can be pushed through the holes provided in the armor plates, time-consuming, sensitive changes in the position of the cooling segments are often necessary, both in terms of their height, their lateral position and their angular position.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der eingangs genannten Art zum Montieren von Kühlsegmenten derart zu gestalten, daß die Montage der Kühlsegmente wesentlich beschleunigt werden kann.The invention has for its object to design a device of the type mentioned for mounting cooling segments in such a way that the assembly of the cooling segments can be significantly accelerated.

Diese Aufgabe wird dadurch gelöst, daß die Montagebühne konzentrisch zur Achse des Hochofens angeordnete Schienen aufweist, daß auf diesen Schienen ein als Fahrzeugrahmen ausgebildeter Tragrahmen bewegbar ist, der ein relativ zu sich bewegbares Tragteil aufweist, auf dem wiederum das Aufnahmemittel für die Kühlsegmente angeordnet ist, wobei das Aufnahmemittel ein im wesentlichen waagerechtes Aufnahmeteil und ein im wesentlichen senkrechtes Anlageteil aufweist, daß Verstellmittel zur Höhenverstellung des Aufnahmemittels relativ zur Montagebühne und zur Neigungsverstellung in Längs- und Querrichtung vorgesehen sind, und daß die Lage des Aufnahmemittels auch um eine senkrechte Hochachse und in radialer Richtung einstellbar ist.This object is achieved in that the assembly platform has rails arranged concentrically to the axis of the blast furnace, that a support frame designed as a vehicle frame can be moved on these rails, which has a support part which can be moved relative to one another and on which the receiving means for the cooling segments is in turn arranged, wherein the receiving means has a substantially horizontal receiving part and a substantially vertical contact part, that adjustment means are provided for height adjustment of the receiving means relative to the assembly platform and for inclination adjustment in the longitudinal and transverse directions, and that the position of the Recording means is also adjustable about a vertical vertical axis and in the radial direction.

Mit Hilfe des auf den Schienen um die Achse des Hochofens fahrbaren Tragrahmens ist es in Verbindung mit dem auf ihm bewegbaren Tragteil möglich, die Kühlsegmente aufzunehmen und mühelos an jede Stelle innerhalb des Hochofens hinzubringen und auszurichten. Mit dem im wesentlichen waagerechten Aufnahme- oder Auflageteil ist es möglich, die Kühlsegmente von unten zu erfassen. Kühlsegmente werden am Stahlblech befestigt und weisen untereinander jeweils einen Zwischenraum oder Spalt auf, wobei das Aufnahmeteil in den Zwischenraum einfahren kann. Dadurch ist es möglich, die Kühlsegmente sowohl von unten nach oben als auch von oben nach unten zu montieren. Wenn, das Stahl- oder Mantelblech des Hochofens zunächst nur im oberen Bereich des Hochofengestells vorhanden ist, können mit der erfindungsgemäßen Einrichtung bereits die obersten Reihen von Kühlsegmenten montiert werden. Durch Absenken der Montagebühne können die tiefer gelegenen Kühlsegmentreihen - anders als mit einem von oben angreifenden Aufnahmemittel, z.B. einem Kranhaken - anschließend montiert werden. Im Bedarfsfall können auch einzelne Kühlsegmente ausgetauscht werden.With the help of the support frame, which can be moved on the rails around the axis of the blast furnace, it is possible, in connection with the support part that can be moved on it, to take up the cooling segments and effortlessly bring and align them anywhere in the blast furnace. With the essentially horizontal receiving or supporting part, it is possible to grasp the cooling segments from below. Cooling segments are fastened to the steel sheet and each have a space or gap between them, the receiving part being able to move into the space. This makes it possible to mount the cooling segments both from the bottom up and from the top down. If the steel or jacket plate of the blast furnace is initially only present in the upper region of the blast furnace frame, the top rows of cooling segments can already be installed with the device according to the invention. By lowering the assembly platform, the lower-lying rows of cooling segments can be used - unlike with a receiving means that attacks from above, e.g. a crane hook - then be assembled. If necessary, individual cooling segments can also be replaced.

Die um die Achse des Hochofens angeordneten Schienen ermöglichen, einen zentralen Durchlaß in der Montagebühne zu lassen. Während der Montage der Kühlsegmente kann ein schweres zentrales Hebezeug durch die Öffnung hindurchreichen und zur Montage anderer, schwerer Teile des Hochofens herangezogen werden.The rails arranged around the axis of the blast furnace make it possible to leave a central passage in the assembly platform. During the assembly of the cooling segments, a heavy central hoist can pass through the opening and be used to assemble other, heavy parts of the blast furnace.

Bei einer bevorzugten Ausführungsform ist auf dem Trag- oder Fahrzeugrahmen ein Schwenkarm gelagert, an dessen beweglichem Ende das Aufnahmemittel für die Kühlsegmente angeordnet ist. Durch Schwenken des Schwenkarms kann der wirksame Radius des Aufnahmemittels für die Kühlsegmente (im folgenden auch "Kühlsegmentaufnahme" genannt) in einem weiten Bereich geändert werden, wobei die radiale Ausrichtung der Kühlsegmentaufnahme in bezug auf den Hochofen bzw. auf eine waagerechte Ebene desselben durch die Schwenkbarkeit der Kühlsegmentaufnahme in bezug auf den Schwenkarm möglich ist. Durch die Verstellmittel zur Höhenverstellung kann die Höhe der Kühlsegmentaufnahme relativ zu der in der Höhe grob einstellbaren Montagebühne feinfühlig verändert werden. Ebenso kann die Neigung der Kühlsegmentaufnahme den örtlichen Gegebenheiten des Hochofens angepaßt werden.In a preferred embodiment, a swivel arm is mounted on the support or vehicle frame, on the movable end of which the receiving means for the cooling segments is arranged. By swiveling the swivel arm, the effective radius of the receiving means for the cooling segments (hereinafter also referred to as "cooling segment receptacle") can be changed over a wide range, the radial alignment of the cooling segment receptacle with respect to the blast furnace or to a horizontal plane thereof due to the pivotability the cooling segment can be mounted in relation to the swivel arm. By means of the adjustment means for height adjustment, the height of the cooling segment receptacle can be sensitively changed relative to the mounting platform which can be roughly adjusted in height. The inclination of the cooling segment receptacle can also be adapted to the local conditions of the blast furnace.

Nach Anspruch 3 können die Verstellmittel sowohl für die Höhenverstellung als auch für die Querneigung zusammengefaßt werden. Dabei werden diese nach Anspruch 4 vorzugsweise als seitlich unter der Kühlsegmentaufnahme getrennt angeordnete Hydrozylinder ausgebildet. Zur Höhenverstellung werden die Hydrozylinder gleichzeitig und in gleichem Maße und zur Neigungsverstellung unterschiedlich betätigt.According to claim 3, the adjustment means can be summarized both for the height adjustment and for the bank angle. In this case, these are preferably designed as hydraulic cylinders arranged separately under the cooling segment receptacle. To adjust the height, the hydraulic cylinders are operated simultaneously and to the same extent and to adjust the inclination differently.

Durch die Ausführung der Einrichtung gemäß Anspruch 5 genügt es, daß die Mittel zur Höhenverstellung nur an dem vorderen Ende unter dem Scharnier angeordnet sind. Die durch eine derartige, nur an einem Ende vorgenommene Höhenverstellung eintretende Neigungsänderung der Kühlsegmentaufnahme kann durch die speziell dafür vorgesehene Verstelleinrichtung korrigiert werden.By executing the device according to claim 5, it is sufficient that the means for height adjustment are arranged only at the front end under the hinge. The one made at one end only The change in inclination of the cooling segment receptacle that occurs when the height is adjusted can be corrected by means of the specially provided adjustment device.

Um die Kühlsegmentaufnahme gegenüber der durch den Schwenkwinkel grob vorgegebenen Position in radialer Richtung feinfühlig ändern zu können, besteht die die Kühlsegmentaufnahme tragende Konstruktion nach Anspruch 6 aus einem auf dem Schwenkarm schwenkbar gelagerten Hilfsrahmen und einem auf diesem abgestützten Rahmengestell, dessen Lage relativ zu dem Hilfsrahmen einstellbar ist.In order to be able to sensitively change the cooling segment receptacle in the radial direction in relation to the position roughly predetermined by the pivoting angle, the construction carrying the cooling segment receptacle according to claim 6 consists of a subframe pivotably mounted on the pivoting arm and a frame supported on this, the position of which can be adjusted relative to the subframe is.

Durch die nach den Ansprüchen 7 und 8 vorgesehenen Pendelstützen lassen sich alle gewünschten Bewegungen der Kühlsegmentauflage verwirklichen, wobei die mittige senkrechte Führung für die notwendige statische Bestimmtheit sorgt.With the pendulum supports provided according to claims 7 and 8, all desired movements of the cooling segment support can be realized, the central vertical guide ensuring the necessary static determination.

Ein Ausführungsbeispiel des Gegenstandes der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden näher beschrieben. Es zeigen:

Fig. 1
eine Montageeinrichtung innerhalb eines Hochofens,
Fig. 2
die Montageeinrichtung in einer auszugsweisen Darstellung (entsprechend einem senkrechten Schnitt durch den Hochofen),
Fig. 3
die Montageeinrichtung in einer auszugsweisen Draufsicht (entsprechend einem waagerechten Schnitt durch den Hochofen) und
Fig. 4
eine Kühlsegmentaufnahme in der Frontansicht.
An embodiment of the object of the invention is shown schematically in the drawing and is described in more detail below. Show it:
Fig. 1
an assembly device within a blast furnace,
Fig. 2
the assembly device in an extract (corresponding to a vertical section through the blast furnace),
Fig. 3
the assembly device in a partial plan view (corresponding to a horizontal section through the blast furnace) and
Fig. 4
a cooling segment shot in the front view.

Die Einrichtung zum Montieren von Kühlsegmenten 1 weist eine im oberen Teil eines Hochofens 2 abgestützte Tragkonstruktion 3 auf, an der gleichmäßig am Umfang verteilte Hebeeinrichtungen 4 angeordnet sind, mit deren Hilfe eine Montagebühne 5 über Seile 6 innerhalb des Hochofens 2 heb- und senkbar ist. Zur Anpassung an die in Abhängigkeit von der Höhe verschiedenen Durchmesser des Hochofens 2 weist die Montagebühne 5 radial ausgerichtete, teleskopartig ausgebildete Kragbalken 7 auf, mit deren Hilfe die Fläche der Montagebühne 5 bekannter Weise vergrößert werden kann.The device for mounting cooling segments 1 has a supporting structure 3 which is supported in the upper part of a blast furnace 2 and on which lifting devices 4 are arranged which are evenly distributed over the circumference and by means of which a mounting platform 5 can be raised and lowered within the blast furnace 2 by means of ropes 6. In order to adapt to the diameter of the blast furnace 2, which varies depending on the height, the assembly platform 5 has radially oriented, telescopic cantilever beams 7, with the aid of which the area of the assembly platform 5 can be enlarged in a known manner.

In der Mitte weist die Montagebühne 5 eine Ausnehmung 8 auf, durch die das Aufnahmemittel, z.B. ein Kranhaken, einer zentrischen Hebeeinrichtung 9 durchgeführt werden kann. Die Kühlsegmente 1 können sowohl von einer in der Mitte des oberen Traggerüstes 3 angeordneten Hebeeinrichtung 9 erfaßt, durch die Ausnehmung 8 durchgezogen und auf die Aufnahme 28 abgesetzt werden als auch durch eine Öffnung im oberen Bereich des Hochofens eingeführt und von einer im oberen Bereich des Hochofens befindlichen weiteren Hubeinrichtung 9′ auf die Montagebühne 5 oder die Aufnahme 28 abgesetzt werden.In the middle, the assembly platform 5 has a recess 8 through which the receiving means, e.g. a crane hook, a central lifting device 9 can be carried out. The cooling segments 1 can be gripped both by a lifting device 9 arranged in the middle of the upper support frame 3, pulled through the recess 8 and placed on the receptacle 28, and introduced through an opening in the upper region of the blast furnace and by one in the upper region of the blast furnace located further lifting device 9 'are placed on the assembly platform 5 or the receptacle 28.

Auf der Montagebühne sind in sich geschlossene, kreisförmige Schienen 11, 12 mit I-förmigem Querschnitt konzentrisch um die Achse 2′ des Hochofens 2 angeordnet, auf denen ein Montagewagen oder -fahrzeug 13 mit einem Fahrzeugrahmen oder -gestell 14 bewegbar ist, der bzw. das - in der Draufsicht gesehen - die Fläche eines Kreisringsegments hat. Der Fahrzeugrahmen 14 stützt sich über obere Laufräder 15′, 15˝ an der Lauffläche der Schienen 11, 12 ab. Zum Absichern gegen Kippen des Montagefahrzeugs 13 sind untere Laufräder 16 vorgesehen, die sich an der Unterseite des oberen Gurtes der Schienen 11, 12 abstützen. Zur Spurführung oder -sicherung sind an jeder Seite zwei Laufrollen 17 vorgesehen, die jeweils innen an den Gurten der Schienen 11, 12 laufen.Closed, circular rails 11, 12 with an I-shaped cross-section are arranged concentrically around the axis 2 'of the blast furnace 2 on the assembly platform, on which an assembly carriage or vehicle 13 with a vehicle frame or frame 14 can be moved, the or that - in the Seen from above - has the area of a circular ring segment. The vehicle frame 14 is supported via upper wheels 15 ', 15' on the running surface of the rails 11, 12. To secure against tilting of the assembly vehicle 13, lower wheels 16 are provided, which are supported on the underside of the upper belt of the rails 11, 12. For tracking or securing, two rollers 17 are provided on each side, each running on the inside of the belts of the rails 11, 12.

Auf dem Fahrzeugrahmen 14 befindet sich eine sog. Königssäule 20 mit senkrechter Achse, um die ein Schwenkbalken oder Schwenkarm 21 schwenkbar gelagert und in beliebiger Weise, z.B. über einen (nicht dargestellten) handbetätigten Drehantrieb, antreibbar ist. An seinem freien beweglichen Ende ist wiederum ein Hilfsrahmen 22 schwenkbar um eine senkrechte Achse 23 gelagert. Auf diesem Hilfsrahmen 22 ist über drei Pendelstützen 24, 25, 26 mit Doppelgelenken ein Rahmengestell 27 gelagert, auf dem wiederum die eigentliche Kühlsegmentaufnahme 28 angeordnet ist.On the vehicle frame 14 there is a so-called king column 20 with a vertical axis, around which a swivel beam or swivel arm 21 is pivotably mounted and in any way, e.g. can be driven via a (not shown) manually operated rotary drive. At its free movable end, an auxiliary frame 22 is in turn pivotally mounted about a vertical axis 23. A frame 27 is mounted on this subframe 22 via three pendulum supports 24, 25, 26 with double joints, on which in turn the actual cooling segment receptacle 28 is arranged.

Der Antrieb des Fahrzeugrahmens 14 bzw. des ganzen Montagewagens 13 erfolgt über die Laufräder 15′, die im Schwenkbereich des Schwenkarms 21 und der Kühlsegmentaufnahmen 28 liegen. Diese Laufräder 15′ sind über ihre gemeinsame Achse starr miteinander und zusammen über die Achse mit einem Antriebsmotor 18 verbunden. Zur Verbesserung der Laufgüte weisen die auf den Schienen 11 und 12 laufenden Laufräder 15′ unterschiedliche Durchmesser auf, die sich zueinander verhalten wie die Durchmesser bzw. Radien der Schienen 11 und 12. Die Laufflächen der Laufräder 15′ sind konisch ausgebildet, wobei beide Laufflächen jeweils einen Teil einer (gedachten) Kegelfläche darstellen, die durch den Durchmesser des auf der äußeren Schiene 11 laufenden Laufrades 15′ und den Radius der Schiene 11 gegeben ist. Die beiden anderen Laufräder 15˝ können analog ausgebildet oder einzeln am Fahrzeugrahmen 14 gelagert sein.The drive of the vehicle frame 14 or the entire assembly carriage 13 takes place via the wheels 15 ', which are in the swivel range of the swivel arm 21 and the cooling segment receptacles 28. These wheels 15 'are rigidly connected to one another via their common axis and are connected together via the axis to a drive motor 18. In order to improve the running quality, the running wheels 15 'on the rails 11 and 12' have different diameters which relate to one another like the diameter or radii of the rails 11 and 12. The running surfaces of the running wheels 15 'are conical, both of them Treads each represent part of an (imaginary) conical surface, which is given by the diameter of the running wheel 15 'on the outer rail 11' and the radius of the rail 11. The two other wheels 15˝ can be designed analogously or individually mounted on the vehicle frame 14.

Um die Lage des Rahmengestells 27 und damit der Kühlsegmentaufnahme 28 mit Bezug auf den Hilfsrahmen 22 in Längsrichtung eindeutig und feinfühlig einstellen zu können, ist zwischen dem Rahmengestell 27 und dem Hilfsrahmen 22 eine als Druckmittelzylinder ausgebildete Verstelleinrichtung 29 vorgesehen. Statt des Druckmittelzylinders kann als Verstelleinrichtung auch ein handbetätigter Spindelantrieb mit gut zugänglichem Handrad vorgesehen sein.In order to be able to set the position of the frame 27 and thus the cooling segment receptacle 28 clearly and delicately in the longitudinal direction with respect to the auxiliary frame 22, an adjusting device 29 designed as a pressure medium cylinder is provided between the frame 27 and the auxiliary frame 22. Instead of the pressure medium cylinder, a manually operated spindle drive with an easily accessible handwheel can also be provided as the adjusting device.

Zwei Pendelstützen 24, 25 sind an Kolbenstangen von Hydrozylindern 31 und 32 abgestützt, die am bzw. im Hilfsrahmen 22 gelagert sind. Zwischen den Hydrozylindern 31, 32 ist eine - in bezug auf die Grundfläche unbewegliche - senkrechte Führungssäule 33 ohne eigenen Antrieb im Hilfsrahmen 22 geführt, die über eine als Langlochverbindung ausgebildete Führung 34 mit dem Rahmengestell 27 verbunden ist. Diese Verbindung erlaubt eine Relativbewegung des Rahmengestells 27 und damit der Kühlsegmentaufnahme 28 gegenüber dem Hilfsrahmen 22 in der Längserstreckung, verhindert aber eine Relativbewegung in (waagerechter) Querrichtung.Two pendulum supports 24, 25 are supported on piston rods of hydraulic cylinders 31 and 32, which are mounted on or in the auxiliary frame 22. Between the hydraulic cylinders 31, 32 a vertical guide column 33, which is immovable with respect to the base area, is guided in the auxiliary frame 22 without its own drive and is connected to the frame 27 via a guide 34 designed as an elongated hole connection. This connection allows a relative movement of the frame 27 and thus the cooling segment receptacle 28 with respect to the auxiliary frame 22 in the longitudinal direction, but prevents a relative movement in the (horizontal) transverse direction.

An dem über den Hydrozylindern 31, 32 befindlichen Ende ist die Kühlsegmentaufnahme 28 mit einer waagerechten, plattformartigen Aufnahme oder Auflage 36 und einer senkrechten Anlage 37 über ein waagerechtes Scharniergelenk 38 auf dem Rahmengestell 27 gelagert. Die Kühlsegmentauflage 28 ist mit ihrer senkrechten Anlage 37 über eine als Spannschloß mit gegensinnigen Gewindesteigungen ausgebildete Einstell- bzw. Verstelleinrichtung 39 mit dem hinteren Ende des Zwischenrahmens 27 verbunden, so daß die Neigung der Kühlsegmentaufnahme 28 in Längsrichtung, d.h. um die Achse 38, veränderbar ist, und zwar sowohl im als auch entgegen dem Uhrzeigersinn. Statt des Spannschlosses läßt sich auch ein Druckmittelzylinder verwenden.At the end located above the hydraulic cylinders 31, 32 is the cooling segment receptacle 28 with a horizontal, platform-like receptacle or Support 36 and a vertical system 37 mounted on the frame 27 via a horizontal hinge joint 38. The cooling segment support 28 is connected with its vertical contact 37 to the rear end of the intermediate frame 27 via an adjusting or adjusting device 39 designed as a turnbuckle with opposite thread pitches, so that the inclination of the cooling segment receptacle 28 can be changed in the longitudinal direction, ie around the axis 38 , both clockwise and counterclockwise. Instead of the turnbuckle, a pressure medium cylinder can also be used.

Zur Veränderung der Querneigung eines Kühlsegments 1 wird im Falle des in Fig. 4 dargestellten Beispiels die Kolbenstange des Hydrozylinders 31 abgesenkt und/oder die Kolbenstange des Hydrozylinders 32 angehoben.To change the transverse inclination of a cooling segment 1, the piston rod of the hydraulic cylinder 31 is lowered and / or the piston rod of the hydraulic cylinder 32 is raised in the example shown in FIG. 4.

In Fig. 3 ist der Schwenkarm 21 des Montagewagens 13 in einer beliebigen Position dargestellt. Zur Montage eines Kühlsegments an einer Stelle, an der das Stahlblech des Hochofens 2 den größten Durchmesser aufweist, erstreckt sich der Schwenkarm 21 (nicht gesondert dargestellt) radial nach außen, wobei der Durchmesser der Schienen 11, 12 entsprechend bemessen ist. Zur Montage an einer Stelle, an der das Stahlblech des Hochofens 2 den kleinsten Durchmesser aufweist, muß der Schwenkarm 21 entsprechend seitlich verschwenkt werden (vgl. die strichpunktierte Darstellung in Fig. 3). Zur Aufnahme eines Kühlsegments 1 auf die Kühlsegmentaufnahme 28 wird der Schwenkarm 21 radial nach innen die mittlere Ausnehmung oder Öffnung 8 der Montagebühne 5 herangeschwenkt.In Fig. 3, the pivot arm 21 of the assembly carriage 13 is shown in any position. To assemble a cooling segment at a point where the steel sheet of the blast furnace 2 has the largest diameter, the swivel arm 21 (not shown separately) extends radially outwards, the diameter of the rails 11, 12 being dimensioned accordingly. For assembly at a point where the steel sheet of the blast furnace 2 has the smallest diameter, the swivel arm 21 must be pivoted laterally accordingly (cf. the dash-dotted line in FIG. 3). To receive a cooling segment 1 on the cooling segment receptacle 28, the swivel arm 21 is pivoted radially inward toward the central recess or opening 8 of the assembly platform 5.

Claims (8)

  1. Apparatus with a horizontal assembly platform which can be raised or lowered, and carrying gear for installing cooling elements in the interior of the sheet steel of a blast furnace,
    characterised by
    the assembly platform (5) having rails (11, 12) disposed concentric to the axis (2' ) of the blast furnace (2), which has a vehicular constructed supporting frame (14) moveable on these rails (11, 12), having a moveable support part (21) relative to it, which again has the carrying gear (28) for the cooling elements (1) disposed on it,
    whereby the carrying gear (28) has a substantially horizontal carrying part (36) and a substantially vertical supporting part (37) that are provided with means of adjustment (31, 32, 39) for vertical adjustment of the carrying gear (28) relative to the assembly platform (5) and for tilting adjustment in the longitudinal and transverse direction, and that the position of the carrying gear (28) is also adjustable round a vertical axis (23) and in a radial direction.
  2. Apparatus as Claim 1, characterised by the support part (21) being constructed as a swivel-mounted swivel arm on the vehicular frame (14) round a vertical axis (20), on whose mobile end the carrying gear (28) for the cooling elements (1) is supported swivel-mounted round a vertical axis (23).
  3. Apparatus as Claims 1 or 2, characterised by joint means of adjustment (31, 32) being provided for adjusting the height of the carrying gear (28) relative to the assembly platform (5) and the transverse inclination of the carrying gear (28).
  4. Apparatus as one of the Claims 1 to 3, characterised by the means of adjustment (31, 32) consisting of separated hydraulic cylinders laterally disposed under the carrying gear (28).
  5. Apparatus as one of the Claims 1 to 4, characterised by the carrying gear (28) being supported via a construction (22, 27) carrying it on the supporting part (21), whereby the carrying gear (28) is connected with the construction carrying it, on one side over a hinged articulation (38) made possible to be longitudinally inclined, and on the other side over an adjustment apparatus (29).
  6. Apparatus as Claim 5, characterised by the construction carrying the carrying gear (28) consisting of a framework (27) supported on an auxiliary frame (22) which is swivel-mounted on the swivel arm (21), whereby the position of the framework (27) is adjustable in a longitudinal direction relative to the auxiliary frame (22) by means of an adjustment apparatus (29).
  7. Apparatus as Claim 6, characterised by the framework (27) being supported via pendulum supports (24...26) on the auxiliary frame (22) and that a central vertical guide (33) is provided for the framework (27).
  8. Apparatus as Claim 7, characterised by altogether three pendulum supports (24...26) being provided, whereby two pendulum supports (24, 25) are connected with their lower ends respectively, with a hydraulic cylinder (31, 32).
EP89121426A 1988-12-02 1989-11-20 Apparatus for installing cooling elements in the interior of a blast furnace Expired - Lifetime EP0372286B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89121426T ATE95248T1 (en) 1988-12-02 1989-11-20 DEVICE FOR MOUNTING COOLING SEGMENTS ON THE INSIDE OF A BLAST FURNACE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840634 1988-12-02
DE3840634A DE3840634A1 (en) 1988-12-02 1988-12-02 DEVICE FOR MOUNTING COOLING SEGMENTS ON THE INSIDE OF A METALLURGICAL VESSEL

Publications (2)

Publication Number Publication Date
EP0372286A1 EP0372286A1 (en) 1990-06-13
EP0372286B1 true EP0372286B1 (en) 1993-09-29

Family

ID=6368323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121426A Expired - Lifetime EP0372286B1 (en) 1988-12-02 1989-11-20 Apparatus for installing cooling elements in the interior of a blast furnace

Country Status (4)

Country Link
EP (1) EP0372286B1 (en)
AT (1) ATE95248T1 (en)
DD (1) DD290927A5 (en)
DE (2) DE3840634A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE249602C (en) *
DE1227925B (en) * 1963-01-23 1966-11-03 Beteiligungs & Patentverw Gmbh Device with platform and lifting means for lining converters and other metallurgical vessels and ovens with large format bricks
AT263062B (en) * 1963-12-23 1968-07-10 Voest Ag Device for lining metallurgical vessels, in particular converters
DE1434537C3 (en) * 1964-12-01 1974-01-10 Zentralnoje Konstruktorskoje Buero Glawstrojmechanisazii, Moskau Device for the execution of tower-like structures
US3241634A (en) * 1965-02-01 1966-03-22 Clyde W Prosser Portable scaffolds
US3851772A (en) * 1972-05-15 1974-12-03 Combustion Eng Device for transferring objects
US3926318A (en) * 1974-04-22 1975-12-16 Ronald R Kister Panel handling device and method
AT371500B (en) * 1981-07-30 1983-06-27 Voest Alpine Ag DEVICE FOR REMOVING AND INSTALLING A REFRIGERATOR BOX TO BE USED IN A SHEATH OF A METALLURGICAL VESSEL
DE3413806C1 (en) * 1984-04-12 1985-01-31 Mannesmann AG, 4000 Düsseldorf Device for lining metallurgical vessels, in particular steel mill converters

Also Published As

Publication number Publication date
DE58905770D1 (en) 1993-11-04
EP0372286A1 (en) 1990-06-13
ATE95248T1 (en) 1993-10-15
DD290927A5 (en) 1991-06-13
DE3840634A1 (en) 1990-06-07

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