EP0553432B1 - Installation for supplying media to a blowing lance - Google Patents
Installation for supplying media to a blowing lance Download PDFInfo
- Publication number
- EP0553432B1 EP0553432B1 EP92120459A EP92120459A EP0553432B1 EP 0553432 B1 EP0553432 B1 EP 0553432B1 EP 92120459 A EP92120459 A EP 92120459A EP 92120459 A EP92120459 A EP 92120459A EP 0553432 B1 EP0553432 B1 EP 0553432B1
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- EP
- European Patent Office
- Prior art keywords
- lance
- connection
- carrier
- blowing
- blowing lance
- 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 - Lifetime
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- 238000007664 blowing Methods 0.000 title claims abstract description 28
- 238000009434 installation Methods 0.000 title claims abstract 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract 2
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 239000010959 steel Substances 0.000 claims abstract 2
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 abstract description 25
- 230000008878 coupling Effects 0.000 abstract description 19
- 238000005859 coupling reaction Methods 0.000 abstract description 19
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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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
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
- C21C5/462—Means for handling, e.g. adjusting, changing, coupling
Definitions
- the invention relates to a device for supplying media to a blowing lance, in particular a blowing lance for steelmaking according to the inflation method, with a vertically movable lance carrier, an essentially vertical connecting surface on a connecting device on the lancing carrier, a counter-connecting surface on the upper part of the blowing lance, the two connecting surfaces at Coupling the blowing lance to the connection device can be pressed against each other by sealing relative displacement.
- a decisive advantage of the arrangement described is that the lance for carrying out the actual coupling can first be fixed rigidly on the lance carrier. Swiveling and rocking movements of the lance, such as occur when the lance is transported to the lance holder, are thus largely suppressed, and the upper part of the lance is completely blocked and immobile for the actual coupling.
- the coupling process with a top part of the lance still performing pivoting and tilting movements would have destructive effects on the connection surfaces on the lance carrier and on the coupling head, and on the coupling mechanism. This is all the more so because the lance has significant moments of inertia due to its great length.
- EP-A-0 441 767 describes a device for supplying media to a blowing lance with a vertical connection surface on the lance carrier.
- the lance is suspended in a horizontal displacement device on the lance carrier.
- the latter moves the lance horizontally in order to bring the mating connection surface on the upper part of the blowing lance into contact with the vertical connection surface on the lance holder and to press it tightly. Since rocking movements of the lance can occur both when the lance is suspended in the displacement device, as well as during horizontal displacement and during the coupling and uncoupling process, there is a risk that the connecting surfaces on the upper part of the lance and / or on the connecting device on the lance carrier can be damaged by uncontrolled collision .
- this object is achieved by a device according to claim 1.
- the first vertical connection surface on the lance carrier is replaced by a horizontal one Moving the connection device brought into contact with the immovable counter connection surface on the blocked upper part of the lance.
- the lance with its significant moments of inertia therefore remains immobile during the coupling process and the coupling process is carried out by moving the slide guided in horizontal guides with the connecting device.
- the slide with the connecting device is horizontally displaced in the opposite direction, the blocking of the lance by the fastening device only being released after the connecting device has reached its rest position. This effectively prevents damage to the two connection surfaces during the coupling and uncoupling process due to uncontrolled movements of the lance and the connection device.
- a carriage is to be understood to mean any construction which can interact with the guides in order to ensure that the connecting device is guided correctly and horizontally.
- the carriage can of course also be an independent component of the connection device itself.
- the connecting device has locking hooks which can be engaged in corresponding locking pins on the upper part of the lance.
- the fastening device on the lance carrier comprises a supporting flange in which the lance can be suspended by means of a collar. Swiveling and sliding hooks then engage and pull the support bolts of the lance against the support flange so that the lance is firmly blocked on the lance carrier.
- connection surfaces are no longer exposed to the risk of an uncontrolled collision during the coupling process, these connection surfaces can now advantageously be designed with concentric openings for the media channels. Of course, this design considerably simplifies the construction of the upper part of the lance.
- the slide is advantageously provided with guide rollers or slideways which interact with the corresponding guide rails on the lance carrier.
- the blowing lance can be picked up directly by a crane hook by means of a transport eye attached to the upper part of the lance, in the extension of the longitudinal axis of the lance.
- Complex transport brackets which are known from the devices with horizontal connection surfaces, are therefore no longer required.
- the reference number 4 denotes the upper end of a blowing lance, which has been placed and blocked on a vertically movable lance carrier 6 and then has been firmly coupled to a connection device 8 for various media, for example gases and liquid coolants.
- the fastening device 10 for fixing and blocking the lance 4 on the lance carrier 6 essentially consists of a lance collar 12, by means of which the Lance can be hooked into a support flange 14 on the lance carrier 6, and from pivotable and displaceable hooks 16, 16 'on the lance carrier, which can be engaged in support bolts 18, 18' on the lance 4.
- the lance 4 is coupled with its upper lance part or coupling head 20, the axis of which extends perpendicular to the longitudinal axis 4 ′ of the lance 4 and which preferably has a flat media feed connection surface 22, to a corresponding mating connection surface 34 of the connection device 8.
- the connecting device 8 is not rigidly connected to the lance carrier 6, but rather is mounted on a slide which is guided on horizontal guide rails 28, 30 of the lance carrier 6 by means of rollers 23, 24, 26.
- the drive for the connection device can comprise, for example, a hydraulic linear drive.
- the hooks 32, 32 'are then pivoted upwards, the latter engaging in corresponding coupling bolts 21, 21' on the upper part 20 of the lance and firmly pressing the two opposing connection surfaces against one another.
- the pivotable hooks 32, 32 'are for example, mounted eccentrically, or are driven by a device such as is described, for example, in US Pat. No. 4,893,791.
- the hooks 32, 32 ' are both pivotable and horizontally displaceable.
- the hooks 32, 32 'are first extended and then pivoted into the coupling bolts 21, 21 'on the upper part 20 of the lance.
- the hooks 32, 32 ′ then pull the connection device 8 with the connection surface 34 against the connection surface 22 on the upper part of the lance.
- the connection device 8 can also be returned to its waiting position (preferably additionally) by springs or counterweights as soon as the hooks 32, 32 'disengage from the bolts 21, 21'.
- a transport eyelet 35 is attached to the lance upper part 20 in the extension of the longitudinal axis 4 ′ of the lance 4, into which a crane hook (not shown) can be latched.
- the lance can therefore be transported without an additional transport bracket.
- FIG. 2 shows the preferably flat connection surface 34 on the media connection device 8.
- it has a central, preferably circular orifice 36 and a plurality of concentric annular orifices with sealing zones 38 in between. These openings cooperate with corresponding openings in the connection surface 22 of the lance head 20 in order to establish the connection of the blowing lance to the media supply.
- Such a design of the media transfer areas has proven to be very successful in the past with horizontal areas. It can now also be realized with a vertical arrangement of the connection surfaces 22, 34, without there being any risk of damage to the surfaces during the coupling process of the lance to the connection device on the lance carrier.
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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 Charging Or Discharging (AREA)
- Toys (AREA)
- Electric Cable Installation (AREA)
- Manufacturing Of Electric Cables (AREA)
- Paper (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Medienversorgung einer Blaslanze, insbesondere einer Blaslanze zur Stahlherstellung nach dem Aufblasverfahren, mit einem vertikal verfahrbaren Lanzenträger, einer im wesentlichen vertikalen Anschlussfläche an einer Anschluss-Vorrichtung am Lanzenträger, einer Gegenanschlussfläche am Oberteil der Blaslanze, wobei die beiden Anschlussflächen beim Ankuppeln der Blaslanze an die Anschlussvorrichtung durch relatives Verschieben dichtend gegeneinander pressbar sind.The invention relates to a device for supplying media to a blowing lance, in particular a blowing lance for steelmaking according to the inflation method, with a vertically movable lance carrier, an essentially vertical connecting surface on a connecting device on the lancing carrier, a counter-connecting surface on the upper part of the blowing lance, the two connecting surfaces at Coupling the blowing lance to the connection device can be pressed against each other by sealing relative displacement.
In den Patentschriften US-A-3,972,515 und US-A-4,893,791 und in der Offenlegungsschrift EP-A-0 464 427 wird das Befestigen einer Blaslanze an einem vertikal verfahrbaren Lanzenträger mit horizontaler Medienzufuhr-Anschlussfläche und das Ankuppeln dieser horizontalen Medienzufuhr-Anschlussfläche an eine entsprechende Gegenanschlussfläche an einem Kupplungskopf des Lanzenoberteils beschrieben.In the patents US-A-3,972,515 and US-A-4,893,791 and in the published patent application EP-A-0 464 427 the attachment of a blowing lance to a vertically movable lance carrier with a horizontal media feed connection surface and the coupling of this horizontal media supply connection surface to one corresponding counter-connection surface described on a coupling head of the lance upper part.
Ein entscheidender Vorteil der beschriebenen Anordnung besteht darin, dass die Lanze zur Durchführung des eigentlichen Ankuppelns zuerst starr am Lanzenträger festgelegt werden kann. Schwenk- und Schaukelbewegungen der Lanze, wie sie beim Transport der Lanze zum Lanzenträger entstehen, werden somit weitgehend unterdrückt, und das Lanzenoberteil ist für das eigentliche Ankuppeln vollständig blockiert und unbeweglich. Der Ankuppelvorgang mit einem noch Schwenk-und Kippbewegungen ausführenden Lanzenoberteil hätte nämlich zerstörende Auswirkungen auf die Anschlussflächen am Lanzenträger und am Kupplungskopf, sowie auf den Ankuppelmechanismus. Dies umsomehr, als die Lanze, bedingt durch ihre grosse Länge, bedeutende Massenträgheitsmomente aufweist.A decisive advantage of the arrangement described is that the lance for carrying out the actual coupling can first be fixed rigidly on the lance carrier. Swiveling and rocking movements of the lance, such as occur when the lance is transported to the lance holder, are thus largely suppressed, and the upper part of the lance is completely blocked and immobile for the actual coupling. The coupling process with a top part of the lance still performing pivoting and tilting movements would have destructive effects on the connection surfaces on the lance carrier and on the coupling head, and on the coupling mechanism. This is all the more so because the lance has significant moments of inertia due to its great length.
Horizontale Anschlussflächen, haben jedoch den Nachteil, dass zwischen dem Kranhaken für den Transport der Lanze und dem Lanzenoberteil ein Transportbügel vorgesehen sein muss, um das Lanzenoberteil unter die horizontale Anschlussfläche am Lanzenträger einzuführen. Das Entfernen dieses Bügels nach dem Einbringen der Lanze, sowie das Anbringen desselben für den Transport der Lanze sind dabei mit umständlichen Manipulationen verbunden. Auch muss, bedingt durch eine horizontale Mindestweite dieses Bügels, der Lanzenzubringkorridor eine grössere Breite aufweisen.Horizontal connecting surfaces, however, have the disadvantage that a transport bracket must be provided between the crane hook for transporting the lance and the upper part of the lance in order to insert the upper part of the lance under the horizontal connecting surface on the lance carrier. The removal this bracket after inserting the lance, as well as attaching the same for the transport of the lance are associated with cumbersome manipulations. Also, due to a minimum horizontal width of this bracket, the lance feed corridor must have a larger width.
In der Offenlegungsschrift EP-A-0 441 767 wird eine Einrichtung zur Medienversorgung einer Blaslanze mit vertikaler Anschlussfläche am Lanzenträger beschrieben. Die Lanze wird dabei in eine horizontale Verschiebeeinrichtung auf dem Lanzenträger eingehängt. Letztere verschiebt die Lanze horizontal, um die Gegenanschlussfläche am Oberteil der Blaslanze mit der vertikalen Anschlussfläche am Lanzenträger in Berührungskontakt zu bringen und dichtend anzupressen. Da sowohl bei dem Einhängen der Lanze in die Verschiebeeinrichtung, als auch beim horizontalen Verschieben und beim Ankuppel-und Auskuppelvorgang Schaukelbewegungen der Lanze entstehen können, besteht die Gefahr, dass die Anschlussflächen am Lanzenoberteil und/oder an der Anschlussvorrichtung am Lanzenträger durch unkontrolliertes Zusammenstossen beschädigt werden.EP-A-0 441 767 describes a device for supplying media to a blowing lance with a vertical connection surface on the lance carrier. The lance is suspended in a horizontal displacement device on the lance carrier. The latter moves the lance horizontally in order to bring the mating connection surface on the upper part of the blowing lance into contact with the vertical connection surface on the lance holder and to press it tightly. Since rocking movements of the lance can occur both when the lance is suspended in the displacement device, as well as during horizontal displacement and during the coupling and uncoupling process, there is a risk that the connecting surfaces on the upper part of the lance and / or on the connecting device on the lance carrier can be damaged by uncontrolled collision .
Es ist deshalb Aufgabe der Erfindung, eine Vorrichtung der eingangs beschriebenen Art zu schaffen, bei welcher Beschädigungen der Anschlussflächen durch Schwenkbewegungen der Lanze beim Ankuppel- resp. Auskuppelvorgang wirksam vermieden werden.It is therefore an object of the invention to provide a device of the type described in the introduction in which damage to the connection surfaces due to pivoting movements of the lance when coupling or. Disengaging process can be effectively avoided.
Diese Aufgabe wird erfindungsgemäss durch eine Vorrichtung nach Anspruch 1 gelöst.According to the invention, this object is achieved by a device according to claim 1.
Nachdem die Lanze durch die Befestigungsvorrichtung am Lanzenträger starr blockiert ist, wird die erste vertikale Anschlussfläche am Lanzenträger durch horizontales Verschieben der Anschlussvorrichtung mit der unbeweglichen Gegenanschlussfläche am blockierten Lanzenoberteil in Berührungskontakt gebracht. Die Lanze mit ihren bedeutenden Massenträgheitsmomenten bleibt also während des Ankuppelvorgangs unbeweglich und der Ankuppelvorgang erfolgt durch ein Verschieben des in horizontalen Führungen geführten Schlittens mit der Anschlussvorrichtung. Beim Auskuppelvorgang erfolgt ein horizontales Verschieben des Schlittens mit der Anschlussvorrichtung in entgegengesetzte Richtung, wobei die Blockierung der Lanze durch die Befestigungsvorrichtung erst aufgehoben wird, nachdem die Anschlussvorrichtung ihre Ruhestellung erreicht hat. Dadurch werden Beschädigungen der beiden Anschlussflächen beim An- und Auskuppelvorgang durch unkontrollierte Bewegungen der Lanze und der Anschlussvorrichtung wirksam vermieden.After the lance is rigidly blocked by the fastening device on the lance carrier, the first vertical connection surface on the lance carrier is replaced by a horizontal one Moving the connection device brought into contact with the immovable counter connection surface on the blocked upper part of the lance. The lance with its significant moments of inertia therefore remains immobile during the coupling process and the coupling process is carried out by moving the slide guided in horizontal guides with the connecting device. During the disengaging process, the slide with the connecting device is horizontally displaced in the opposite direction, the blocking of the lance by the fastening device only being released after the connecting device has reached its rest position. This effectively prevents damage to the two connection surfaces during the coupling and uncoupling process due to uncontrolled movements of the lance and the connection device.
Im Sinne dieser Erfindung ist unter einem Schlitten jegliche Konstruktion zu verstehen, welche mit den Führungen zusammenwirken kann, um eine einwandfreie, horizontale Führung der Anschlussvorrichtung zu gewährleisten. Der Schlitten kann selbstverständlich auch ein nicht eigenständiger Bestandteil der Anschlussvorrichtung selbst sein.For the purposes of this invention, a carriage is to be understood to mean any construction which can interact with the guides in order to ensure that the connecting device is guided correctly and horizontally. The carriage can of course also be an independent component of the connection device itself.
Die Anschlussvorrichtung weist, in einer vorteilhaften Ausgestaltung, Verriegelungshaken auf, welche in entsprechende Verriegelungszapfen am Lanzenoberteil eingreifbar sind. Durch diese Verriegelungsvorrichtung lässt sich der Anpressdruck zwischen den zwei Anschlussflächen, unabhängig von dem Antriebsmechanismus für das horizontale Verschieben, gewährleisten und erhöhen.In an advantageous embodiment, the connecting device has locking hooks which can be engaged in corresponding locking pins on the upper part of the lance. By means of this locking device, the contact pressure between the two connection surfaces can be ensured and increased independently of the drive mechanism for the horizontal displacement.
In einer einfachen, vorteilhaften Ausgestaltung umfasst die Befestigungsvorrichtung am Lanzenträger einen Tragflansch in welchen die Lanze mittels eines Bundes einhängbar ist. Schwenk- und verschiebbare Haken greifen anschliessend in Tragbolzen der Lanze ein und ziehen sie gegen den Tragflansch, so dass die Lanze fest am Lanzenträger blockiert ist.In a simple, advantageous embodiment, the fastening device on the lance carrier comprises a supporting flange in which the lance can be suspended by means of a collar. Swiveling and sliding hooks then engage and pull the support bolts of the lance against the support flange so that the lance is firmly blocked on the lance carrier.
Da die beiden Anschlussflächen beim Ankuppelvorgang nicht mehr der Gefahr eines unkontrollierten Zusammenstossens ausgesetzt sind, können diese Anschlussflächen jetzt vorteilhaft mit konzentrischen Mündungen für die Medienkanäle ausgeführt werden. Diese Ausführung vereinfacht natürlich die Konstruktion des Lanzenoberteils wesentlich.Since the two connection surfaces are no longer exposed to the risk of an uncontrolled collision during the coupling process, these connection surfaces can now advantageously be designed with concentric openings for the media channels. Of course, this design considerably simplifies the construction of the upper part of the lance.
Um eine genaue Führung der beweglichen Anschlussfläche beim Ankuppeln zu gewährleisten, ist der Schlitten vorteilhaft mit Führungsrollen, respektiv Gleitführungen versehen, welche mit den entsprechenden Führungsschienen am Lanzenträger zusammenwirken.In order to ensure precise guidance of the movable connection surface when coupling, the slide is advantageously provided with guide rollers or slideways which interact with the corresponding guide rails on the lance carrier.
Mittels einer am Lanzenoberteil, in der Verlängerung der Längsachse der Lanze, befestigten Transportöse, kann die Blaslanze direkt von einem Kranhaken aufgenommen werden. Aufwändige Transportbügel, welche von den Vorrichtungen mit horizontalen Anschlussflächen bekannt sind, werden also nicht mehr benötigt.The blowing lance can be picked up directly by a crane hook by means of a transport eye attached to the upper part of the lance, in the extension of the longitudinal axis of the lance. Complex transport brackets, which are known from the devices with horizontal connection surfaces, are therefore no longer required.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen, in denen gleiche Teile mit den gleichen Referenzzahlen versehen sind, dargestellt und wird im folgenden näher beschrieben. Es zeigen:
- Figur 1, eine Vorderansicht eines Lanzenträgers mit Blaslanze (in Teildarstellung) und Anschlussvorrichtung;
- Figur 2, eine Seitenansicht der Vorrichtung nach Figur 1 unter Weglassung des Lanzenoberteils.
- Figure 1, a front view of a lance carrier with blowing lance (in partial view) and connection device;
- Figure 2 is a side view of the device of Figure 1 with the omission of the upper part of the lance.
In Figur 1 bezeichnet die Referenzzahl 4 das obere Ende einer Blaslanze, welche an einem vertikal verfahrbaren Lanzenträger 6 aufgelegt und blockiert und sodann an eine Anschlussvorrichtung 8 für diverse Medien, zum Beispiel Gase und flüssige Kühlmittel, fest angekuppelt worden ist.In FIG. 1, the
Die Befestigungsvorrichtung 10 zum Festlegen und Blockieren der Lanze 4 am Lanzenträger 6 besteht im wesentlichen aus einem Lanzenbund 12, mittels welchem die Lanze in einen Tragflansch 14 am Lanzenträger 6 einhängbar ist, und aus schwenkbaren und verschiebbaren Haken 16, 16', am Lanzenträger, welche in Tragbolzen 18, 18' an der Lanze 4 eingreifbar sind. Die hydraulisch betätigten Haken 16, 16' ziehen dabei die Blaslanze 4 nach unten gegen den Tragflansch 14, so dass eine starre Blockierung der Lanze am Lanzenträger gewährleistet ist.The
Die Lanze 4 ist mit ihrem Lanzenoberteil oder Kupplungskopf 20, dessen Achse senkrecht zur Längsachse 4' der Lanze 4 verläuft und welcher eine vorzugsweise ebene Medienzufuhr-Anschlussfläche 22 aufweist, an eine entsprechende Gegenanschlussfläche 34 der Anschlussvorrichtung 8 angekuppelt.The
Die Anschlussvorrichtung 8 ist nicht starr mit dem Lanzenträger 6 verbunden, sondern auf einen Schlitten montiert, welcher mittels Laufrollen 23, 24, 26 auf horizontalen Führungsschienen 28, 30 des Lanzenträgers 6 geführt ist. Zum Ankuppeln des blockierten, unbeweglichen Kupplungskopfs 20 der Lanze 4 an die Anschlussvorrichtung 8, wird letztere mit heruntergeschwenkten Ankuppelhaken 32, 32' aus einer nicht dargestellten Warteposition (in Figur 1 rechts von der dargestellten Position), bis zum Berührungskontakt der beiden Medienzufuhr-Anschlussflächen verschoben. Der Antrieb für die Anschlussvorrichtung kann zum Beispiel einen hydraulischen Linearantrieb umfassen. Anschliessend werden die Haken 32, 32' nach oben geschwenkt, wobei letztere in entsprechende Ankuppelbolzen 21, 21' am Lanzenoberteil 20 eingreifen und die beiden, sich gegenüberliegenden, Anschlussflächen fest aneinanderpressen. Die schwenkbaren Haken 32, 32' sind zum Beispiel exzentrisch gelagert, oder über eine Vorrichtung, wie sie zum Beispiel in der Patentschrift US-4,893,791 beschrieben ist angetrieben.The connecting
In einer alternativen Ausführung sind die Haken 32, 32' sowohl schwenkbar, als auch horizontal verschiebbar. Beim Ankuppelvorgang werden die Haken 32, 32' zuerst ausgefahren und anschliessend in die Ankuppelbolzen 21, 21' am Lanzenoberteil 20 eingeschwenkt. Anschliessend ziehen die Haken 32, 32' die Anschlussvorrichtung 8 mit der Anschlussfläche 34 gegen die Anschlussfläche 22 am Lanzenoberteil. Beim Auskuppelvorgang stützen sich die Haken 32, 32' auf die Ankuppelbolzen 21, 21' auf, um die Anschlussvorrichtung 8 in ihre Warteposition zu drücken. Die Rückführung der Anschlussvorrichtung 8 in ihre Warteposition kann jedoch auch (bezugsweise zusätzlich) durch Federn oder Gegengewichte erfolgen, sobald die Haken 32, 32' aus den Bolzen 21, 21' ausklinken.In an alternative embodiment, the
Am Lanzenoberteil 20 ist in der Verlängerung der Längsachse 4' der Lanze 4 eine Transportöse 35 befestigt, in welche ein (nicht gezeigter) Kranhaken einklinkbar ist. Der Transport der Lanze kann folglich ohne zusätzlichen Transportbügel erfolgen.A
In Figur 2 ist die vorzugsweise ebene Anschlussfläche 34 an der Medien-Anschlussvorrichtung 8 zu erkennen. In einer bevorzugten Ausführung weist sie eine zentrale, vorzugsweise kreisrunde Mündung 36 und mehrere konzentrische ringförmige Mündungen mit dazwischenliegenden Abdichtzonen 38 auf. Diese Mündungen wirken dabei mit entsprechenden Öffnungen in der Anschlussfläche 22 des Lanzenkopfs 20 zusammen, um den Anschluss der Blaslanze an die Medienversorgung herzustellen. Eine solche Ausbildung der Medienübertrittsflächen hat sich in der bisherigen Praxis mit horizontalen Flächen bestens bewährt. Sie ist jetzt auch bei vertikaler Anordnung der Anschlussflächen 22, 34 realisierbar, ohne dass dabei das Risiko einer Beschädigung der Flächen beim Ankuppelvorgang der Lanze an die Anschlussvorrichtung am Lanzenträger besteht.FIG. 2 shows the preferably
Claims (8)
- Installation for supplying media to a blowing lance, in particular a blowing lance (4) for steel production by the top-blowing process, with a vertically movable lance carrier (6), an essentially vertical connection face (34) on a connection device (8) on the lance carrier (6) and a counter-connection face (22) on an upper part (20) of the blowing lance (4) to be connected, the two connection faces (20, 34) being designed and arranged in such a way that they can be pressed against each other to form a seal for connection of the blowing lance (4) to the connection device (8) by relative displacement, characterised by a securing device (10) on the lance carrier (6), in which the body of the blowing lance (4) can be locked rigidly and immovably on the lance carrier (6) before the actual connection of the blowing lance (4) to the connection device (8), and a slide which is guided and horizontally displaceable in horizontal guides (28, 30) of the lance carrier (6), the connection device (8) being mounted on this slide in such a way that the first connection face (34) can, by horizontal displacement of the connection device, be brought into contact and aligned with the immovable counter-connection face (22) on the lance upper part (20) locked by the securing device (10).
- Installation according to claim 1, characterised in that the connection device has locking hooks (32, 32') which can engage in corresponding locking bolts (21, 21') on the lance upper part (20).
- Installation according to claim 1 or 2, characterised in that the securing device (10) on the lance carrier (6) has a supporting flange (14), which can engage in a collar (12) on the blowing lance (4), and swiveling and displaceable hooks 16, 16', which can engage in carrier bolts 18, 18' on the blowing lance (4).
- Installation according to one of claims 1 to 3, characterised in that the connection faces (22, 34) have a central orifice (36) and several concentric annular orifices for medium transfer.
- Installation according to claim 4, characterised in that all orifices of a connection face (22, 34) lie in one plane.
- Installation according to one of claims 1 to 5, characterised in that the slide is mounted on rollers (22, 24, 26), which are guided in horizontal guide rails (28, 30).
- Installation according to one of claims 1 to 6, characterised in that the slide is provided with slideways.
- Installation according to one of claims 1 to 6, characterised in that a transport eyelet (35) is secured on the lance upper part (20) in the extension of the longitudinal axis (4') of the blowing lance (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU88056A LU88056A1 (en) | 1992-01-24 | 1992-01-24 | DEVICE FOR MEDIA SUPPLYING A BLOWING LANCE |
| LU88056 | 1992-01-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0553432A1 EP0553432A1 (en) | 1993-08-04 |
| EP0553432B1 true EP0553432B1 (en) | 1995-08-23 |
Family
ID=19731334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92120459A Expired - Lifetime EP0553432B1 (en) | 1992-01-24 | 1992-12-01 | Installation for supplying media to a blowing lance |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5333842A (en) |
| EP (1) | EP0553432B1 (en) |
| JP (1) | JPH05255728A (en) |
| CN (1) | CN1033233C (en) |
| AT (1) | ATE126832T1 (en) |
| AU (1) | AU652306B2 (en) |
| BR (1) | BR9300165A (en) |
| CA (1) | CA2086775A1 (en) |
| DE (1) | DE59203385D1 (en) |
| LU (1) | LU88056A1 (en) |
| TW (1) | TW224986B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541199C2 (en) * | 1995-11-04 | 2001-05-23 | Thyssen Stahl Ag | Changing device for a blowing lance |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3342471A (en) * | 1964-06-22 | 1967-09-19 | Kaiser Ind Corp | Oxygen lance assembly |
| AT264561B (en) * | 1966-11-04 | 1968-09-10 | Voest Ag | Device for raising and lowering oxygen lances for inflation converters |
| US3480267A (en) * | 1967-05-16 | 1969-11-25 | Koppers Co Inc | Horizontally movable platform having a vertically movable carriage for oxygen steelmaking operations |
| LU69797A1 (en) * | 1974-04-05 | 1974-11-21 | ||
| JPS5814691Y2 (en) * | 1977-10-18 | 1983-03-24 | 株式会社安川電機 | Field of rotating electric machine |
| JPS60144133A (en) * | 1984-08-15 | 1985-07-30 | Hitachi Ltd | Field of rotary electric machine |
| JPS6248168U (en) * | 1985-09-13 | 1987-03-25 | ||
| LU87386A1 (en) * | 1988-11-16 | 1989-11-14 | Wurth Paul Sa | AUTOMATIC LANCES CHANGER |
| LU87387A1 (en) * | 1988-11-16 | 1990-06-12 | Wurth Paul Sa | AUTOMATIC LANCES CHANGER |
| LU87425A1 (en) * | 1989-01-16 | 1989-12-11 | Wurth Paul Sa | AUTOMATIC LANCES CHANGER |
| JP2847393B2 (en) * | 1989-08-10 | 1999-01-20 | アイチ―エマソン電機株式会社 | Permanent magnet type rotor |
| DE59104180D1 (en) * | 1990-02-01 | 1995-03-02 | Voest Alpine Ind Anlagen | Device for media supply on a blow lance. |
| DE4003068C1 (en) * | 1990-02-02 | 1991-07-25 | Voest-Alpine Industrieanlagenbau Ges.M.B.H., Linz, At | |
| LU87761A1 (en) * | 1990-07-04 | 1992-03-11 | Wurth Paul Sa | DEVICE FOR AUTOMATICALLY COUPLING AN INSUFFLATION LANCE TO A CONNECTING HEAD |
| JP2524080Y2 (en) * | 1990-10-15 | 1997-01-29 | 株式会社明電舎 | Rotor iron plate of synchronous motor |
| LU87897A1 (en) * | 1991-03-01 | 1992-11-16 | Wurth Paul Sa | DRIVE FOR AUTOMATIC LANCHANGE CHANGING DEVICES |
-
1992
- 1992-01-24 LU LU88056A patent/LU88056A1/en unknown
- 1992-12-01 EP EP92120459A patent/EP0553432B1/en not_active Expired - Lifetime
- 1992-12-01 DE DE59203385T patent/DE59203385D1/en not_active Expired - Fee Related
- 1992-12-01 AT AT92120459T patent/ATE126832T1/en not_active IP Right Cessation
- 1992-12-18 TW TW081110172A patent/TW224986B/zh active
- 1992-12-30 AU AU30501/92A patent/AU652306B2/en not_active Ceased
-
1993
- 1993-01-06 CA CA002086775A patent/CA2086775A1/en not_active Abandoned
- 1993-01-11 US US08/003,232 patent/US5333842A/en not_active Expired - Fee Related
- 1993-01-12 JP JP5020614A patent/JPH05255728A/en active Pending
- 1993-01-21 CN CN93100785.2A patent/CN1033233C/en not_active Expired - Fee Related
- 1993-01-21 BR BR9300165A patent/BR9300165A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE126832T1 (en) | 1995-09-15 |
| TW224986B (en) | 1994-06-11 |
| EP0553432A1 (en) | 1993-08-04 |
| JPH05255728A (en) | 1993-10-05 |
| BR9300165A (en) | 1993-07-27 |
| CN1033233C (en) | 1996-11-06 |
| AU3050192A (en) | 1993-07-29 |
| AU652306B2 (en) | 1994-08-18 |
| LU88056A1 (en) | 1993-08-17 |
| CN1074944A (en) | 1993-08-04 |
| DE59203385D1 (en) | 1995-09-28 |
| CA2086775A1 (en) | 1993-07-25 |
| US5333842A (en) | 1994-08-02 |
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