EP0320841B2 - Vorrichtung zum Ankoppeln einer metallurgischen Pfanne an die Gasversorgung - Google Patents

Vorrichtung zum Ankoppeln einer metallurgischen Pfanne an die Gasversorgung Download PDF

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Publication number
EP0320841B2
EP0320841B2 EP88120707A EP88120707A EP0320841B2 EP 0320841 B2 EP0320841 B2 EP 0320841B2 EP 88120707 A EP88120707 A EP 88120707A EP 88120707 A EP88120707 A EP 88120707A EP 0320841 B2 EP0320841 B2 EP 0320841B2
Authority
EP
European Patent Office
Prior art keywords
base
ladle
male
connecting element
female
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
Application number
EP88120707A
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English (en)
French (fr)
Other versions
EP0320841B1 (de
EP0320841A3 (en
EP0320841A2 (de
Inventor
Hubert Stomp
Jean-Pierre Barthel
Albert Feitler
Fred Parasch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul Wurth SA
Original Assignee
Paul Wurth SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19730999&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0320841(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Priority to AT88120707T priority Critical patent/ATE102259T1/de
Publication of EP0320841A2 publication Critical patent/EP0320841A2/de
Publication of EP0320841A3 publication Critical patent/EP0320841A3/fr
Application granted granted Critical
Publication of EP0320841B1 publication Critical patent/EP0320841B1/de
Publication of EP0320841B2 publication Critical patent/EP0320841B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor

Definitions

  • the present invention relates generally to a automatic pocket connection device metallurgical to a gas network.
  • the pocket is inserted for this purpose in a reception structure and said device comprises in a manner known per se an element of male connection axially engaging in an element of female connection so as to establish communication between the gas network and a pipe secured to the poached.
  • Said station coupling includes a first pneumatic cylinder of translation, to which a second pendulum is suspended pneumatic coupling cylinder.
  • the latter supports axially a female connection element which is connected to said gas distribution network.
  • This element female can be engaged under the action of two cylinders tires on a male connection element which is fitted on the metallurgical ladle and connected to a gas line installed thereon.
  • this mating station which is necessary to connect the male and female element, is a rather bulky mechanism, for which it is in practice often impossible to find, on the structure receiving the pocket, the space necessary for its installation.
  • Document AT-B-365 985 discloses a device for connection of a metallurgical ladle to a gas network which makes this connection automatically, by simple introduction of the bag into a receiving structure.
  • This device includes a male connection element cantilevered by a coil spring on the receiving structure, as well as a foot secured to the pocket fitted with a female connection element.
  • the element male connection is crossed by an axial passage communicating with said gas network, and the element of female connection is crossed axially by a passage connected to a pipe secured to the pocket.
  • the male connection element and the female connection have a location and a orientation which are defined so that the element female connection is axially engaging on the male connection element by the single movement of introduction of the pocket into said structure of reception.
  • the device according to claim 1 allows obtain better mating conditions than the device known from document AT-B-365 985.
  • the male connection element has the form of a cone with a rounded top, while the element female connection in the form of a bowl conical open in the coupling direction.
  • the bottom of the bowl is rounded to match the curvature of the top of the connection head.
  • the rounded top of the male element is advantageously fitted with an O-ring ensuring the tightness of the fitting.
  • the element of male connection has a communicating passage with said gas distribution network and opening axially from the male element at the level from its rounded top, a valve mounted in this passage so as to cut communication with the gas network under the action of a spring, and an axially sliding plunger in this passage so as to open, by axial penetration in the male element, said valve against action of its jurisdiction.
  • Said diver advantageously leads with one end of the rounded top, so that its penetration into the male element is done automatically during the engagement axial of the female element on the male element. In other words, the engagement of the female element on the connection head opens the valve against the action of its jurisdiction.
  • the base supporting the male element is provided on the opposite side to the male element of a cavity having the form of a parallelepiped.
  • the bottom of this cavity defines a sliding plane perpendicular to the axis of connection, which rests and can slide on a support block secured to the structure receiving the poached.
  • This block is crossed by two sets of rods superimposed on the cross and sliding in the block. The ends of these rods are provided with skids which are in sliding support along walls opposite of said cavity. Self-centering of the element male in female element, during action coupling, is done accordingly by sliding from the base to the support block.
  • At least one rod from each set of rods is surrounded by two springs mounted between the pads and the support block, to ensure central position of the base in relation to the block support.
  • the base is mounted in a housing in which it is sliding in a first direction defined by guide rods which pass through it and which are fixed in the housing.
  • This housing is sliding following a second direction in a chassis integral with the structure receiving the pocket. Said second direction is perpendicular to said first direction and is defined by guide rods fixed in the chassis.
  • Pedestal and its housing are preferably maintained in a central position relative to the chassis under the action of springs mounted between the base and its housing on the one hand, and between the housing and the chassis on the other hand.
  • Figure 1 shows a connection element female telescopically mounted in a foot 12, which is in turn attached to the part bottom of the outer wall of a metallurgical ladle 14 as shown in Figure 2.
  • Element 10 can be pushed in from a certain distance in foot 12 against the action of a spring helical 16 arranged around the body 18 of the element 10 and based respectively on a inner shoulder of foot 12 and a shoulder outside of the body 18.
  • the element 10 is crossed axially by a passage 20 which communicates with an external pipe 22, connecting the foot 12 to the hollow part of the bottom of the pocket 14.
  • the part bottom of the connection element 10 comprises a bowl 24 of generally conical shape, open at the bottom and the bottom is rounded.
  • This bowl 24 is used to receive a head of male connection 26 also conical in shape, but at a greater inclination than the taper of the bowl 24.
  • This connection head 26 comprises a rounded top conforming to the curvature from the bottom of the bowl 24 so as to match the form of it.
  • An O-ring 28 provided on the top 26a of head 26 seals when the elements are coupled as shown in figure 1.
  • the head 26 is mounted on a base 30 which is carried by the bottom 32 of the pocket 14 support. According to one of the features of the proposed device the base 30 has two horizontal degrees of freedom relative to the support 32.
  • the base 30 comprises, for this purpose, a lower cavity 34 with open bottom, of rectangular section or square and with vertical interior walls.
  • the base 30 is engaged by this cavity 34 on a support block 36, integral with the bottom 32 of the support.
  • the upper surface of this block 36 is, preferably provided with an upper layer of sliding 38 which carries the base 30 while allowing relatively easy sliding of it on block 36.
  • a system of guide which holds it in relation to the block of support 36.
  • a first set of rods 40 is housed with sliding way in block 36 and includes its opposite ends two sliding shoes 42, 44 on the opposite vertical walls of the base 30.
  • the pads 46 and 48 play the role of stop, preventing untimely lifting of the base 30.
  • This base can slide in the perpendicular direction in the plane of Figure 1 by relative movements between pads 42, 44 and guide surfaces 46, 48 of the base.
  • a second set of rods 50 is arranged perpendicularly to the set of rods 40 in block 36 and also, like these, skates not shown, resting on the vertical walls not visible in the figure of the base 30.
  • the pads of these rods allow movement of the base 30 to the left and right in Figure 1 by sliding the rods 40 in the block of support 36.
  • Figure 2 schematically illustrates these degrees of freedom by arrows defining a freedom of movement rectangle whose sides are 50 by 100 mm.
  • the base 30 further comprises a pipe internal 56 for the intake of process gases liquid metal contained in the bag 14 and which is connected to an articulated or flexible pipe 59 of the gas distribution network.
  • this pipe 59 has revolving fittings 61 to allow the movements of the base 30 on the bottom 32 of the pocket support
  • Channel 56 opens into a chamber 58 provided in the upper part of the base 30 and inside the connection head 26 and which is extended by an axial passage 60 towards the vertex 26a of this head.
  • This valve consists of a piston 62 sliding axially in a guide sleeve 64 which is surrounded a spring 66.
  • This spring 66 applies the piston 62, which is provided with an O-ring 68, against a shoulder defined between chamber 58 and the passage 60 to close the valve.
  • the opening of the valve, against the action of the spring 66 is carried out using a plunger 70 arranged in the passage 60 and resting freely on the piston 62.
  • the plunger 70 has an appropriate section so as not to not block the passage of gas, for example a cross-shaped section as shown in medallion.
  • the length of the plunger 70 is slightly greater than that of passage 60 so that its upper end protrudes from the top of the head 26 when the valve is closed and it can be depressed by the placement of the element of female connection 10 to open this valve as shown in figure 1.
  • the proposed device uses the movement of pocket for automatic connection to the gas network.
  • the descent of foot 12 towards the base 30 ensures, from the penetration of the head 26 into the bowl 24 a self-centering of these connection elements by sliding the base 30 on its support.
  • the complementary curvatures of the vertex 26a of the head 26 and the bottom of the bowl 24 allow, in in addition, to compensate for small misalignments.
  • the automatic valve is opened by pressing the plunger 70 as soon as that it is activated by the bottom of the bowl 24.
  • the connection finally ends with a slight penetration of the connection element female 10 in foot 12 against spring action 16.
  • the coupling elements are the same as those of the embodiment of the Figure 1, except that the coil spring 16 has been replaced by a disc spring 80 and that the flat-headed piston 62 of the valve automatic has been replaced by a conical piston 82.
  • the base 84 of the male connection element 26 is carried by two rods 86, 88 which cross it and which are integral with a housing 92 surrounding the base 84. This base can slide axially on these rods 86, 88 thanks to the presence of ball bearings 90 around each of these rods 86, 88.
  • the central position of the base 84 in the housing 92 is provided by springs 94, 96 arranged on either side of the base 84 and bearing on the housing 92.
  • the assembly formed by the base 84 and the housing 92 is carried, in turn, by two rods superimposed 98, 100 crossing this set and which are integral with a frame 102 fixed on the pocket support floor.
  • This shift in base 84 and housing 92 to the left and towards the right in figure 3 is facilitated by sockets ball 104, provided around rods 98 and 100 at level of the passage through the housing 92.
  • the central position of the housing 92 relative to the chassis 102 is provided by springs 106 provided at least on one of the 98 or 100 stems and other of the housing 92 and bearing on the chassis 102.
  • the mounting device according to Figures 3 and 4 therefore allows the base 84 to slide in two perpendicular directions as in the embodiment of Figures 1 and 2, that is to say in a first direction by relative to its housing 92 and in one direction perpendicular to it with its housing by compared to chassis 102.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (9)

  1. Vorrichtung zum automatischen Anschließen einer metallurgischen Pfanne an ein Gasnetz, wobei die Pfanne zu diesem Zweck durch eine Einsetzbewegung in eine Aufnahmestruktur eingesetzt wird, aufweisend
    ein inneres Anschlußelement (26), das auf einem Sockel (30, 84) befestigt ist, der von der Aufnahmestruktur getragen wird, wobei das innere Anschlußelement (26) einen axialen Durchgang (60) hat, der mit dem Gasnetz (59) in Verbindung steht, und
    einen mit der Pfanne (14) fest verbundenen Fuß (12), der mit einem äußeren Anschlußelement (10) versehen ist, das einen axialen Durchgang (20) hat, der mit einer mit der Pfanne fest verbundenen Rohrleitung (22) verbunden ist,
    wobei das innere Anschlußelement (26) und das äußere Anschlußelement (10) eine Lage und eine Orientierung haben, die so festgelegt sind, daß das äußere Anschlußelement (10) auf das innere Anschlußelement (26) allein durch die Einsetzbewegung der Pfanne in die Aufnahmestruktur axial so aufschiebbar ist, daß eine Verbindung zwischen dem Gasnetz (59) und der mit der Pfanne fest verbundenen Rohrleitung hergestellt wird,
       dadurch gekennzeichnet,
    daß der Sockel (30, 84), der das innere Anschlußelement (26) trägt, mit Hilfe eines Führungssystems, das für diesen Sockel (30, 84) zwei Freiheitsgrade in einer zu der Einsetzbewegung senkrechten Ebene definiert, auf der Aufnahmestruktur angebracht ist,
    daß Zentrierfedern (52, 54), (94, 96, 106) mit diesem Führungssystem so kombiniert sind, daß eine zentrale Position des Sockels (30, 84) bezüglich der Amplitude seiner Freiheitsgrade definiert wird, und
    daß das äußere Anschlußelement (10) in seinem Fuß (12) so angebracht ist, daß es dort entgegen der Wirkung einer Feder (16, 80) parallel zu der Einsetzbewegung gleiten kann.
  2. Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß das innere Anschlußelement (26) die Form eines Konus mit einer verrundeten Spitze (26a) hat, und daß das äußere Element (10) die Form einer konischen Kappe (24) hat, die auf diesen Konus aufschiebbar ist, und deren Boden verrundet ist, um an der Krümmung der Spitze (26a) des inneren Anschlußelements (26) anzuliegen.
  3. Vorrichtung gemäß Anspruch 2, dadurch gekennzeichnet, daß die Spitze (26a) des inneren Elements (26) mit einer O-Ring-Dichtung (28) versehen ist.
  4. Vorrichtung gemäß Anspruch 2 oder 3, dadurch gekennzeichnet, daß das innere Anschlußelement (26) umfaßt: einen Durchgang, der mit dem Gasverteilungsnetz (59) in Verbindung steht und aus dem inneren Anschlußlement (26) im Bereich seiner Spitze (26a) axial austritt, ein Ventil, das in diesem Durchgang so angebracht ist, daß die Verbindung mit dem Gasnetz (59) infolge der Wirkung einer Feder (66) unterbrochen wird, und einen Tauchkolben (70), der in diesem Durchgang axial so verschiebbar ist, daß durch axiales Eindringen in das innere Element (26) das Ventil entgegen der Wirkung seiner Feder (66) geöffnet wird, wobei der Tauchkolben mit einem Ende aus der Spitze (26a) herausragt, so daß sein Eindringen in das innere Element (26) durch axiales Aufschieben des äußeren Elements (10) auf das innere Element (26) erfolgt.
  5. Vorrichtung gemäß irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sockel (30) auf der zu dem inneren Element (26) entgegengesetzten Seite mit einem Hohlraum (34) versehen ist, der die Form eines Parallelepipeds hat, daß der Boden dieses Hohlraums (34) eine zu der Anschlußachse senkrechte, ebene Oberfläche definiert, daß der Sockel (30) mit dieser ebenen Oberfläche auf einem Tragblock (36) gleitend aufliegt, der mit der die Pfanne aufnehmenden Struktur fest verbunden ist, und daß zwei kreuzförmig übereinander angeordnete Stangensätze (40, 50) durch diesen Block (36) hindurchgehen, wobei die Stangen in dem Block (36) verschiebbar sind, und ihre Enden mit Schuhen (42, 44) versehen sind, die auf einander gegenüberliegenden, seitlichen Wänden des Hohlraums (34) gleitend aufliegen.
  6. Vorrichtung gemäß Anspruch 5, dadurch gekennzeichnet, daß mindestens eine Stange jedes Stangensatzes (40, 50) von zwei Federn (52, 54) umgeben ist, die zwischen den äußeren Schuhen (42, 44) und dem Block (36) angebracht sind, um eine zentrale Position des Sockels (30) bezüglich des Blocks (36) sicherzustellen.
  7. Vorrichtung gemäß irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sockel (84) in einem Sitz (92) angebracht ist, in dem er in einer ersten Richtung verschiebbar ist, die durch Führungsstangen (86, 88) definiert ist, die durch ihn hindurchgehen, und die in dem Sitz (92) befestigt sind, und daß der Sitz (92) in einem Chassis (102), das mit der die Pfanne aufnehmenden Struktur fest verbunden ist, in einer zweiten Richtung senkrecht zu der ersten Richtung, verschiebbar ist, wobei die zweite Richtung durch in dem Chassis (102) befestigte Führungsstangen (98, 100) definiert ist.
  8. Vorrichtung gemäß Anspruch 7, dadurch gekennzeichnet, daß der Sockel und sein Sitz (92) aufgrund der Wirkung von Federn (94, 96, 106) in einer zentralen Position bezüglich des Chassis (102) gehalten werden, die einerseits zwischen dem Sockel (84) und seinem Sitz (92), und andererseits zwischen dem Sitz (92) und dem Chassis (102) angebracht sind.
  9. Vorrichtung gemäß irgendeinem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das äußere Anschlußelement (10) auf teleskopische Weise in seinem Fuß (12) angebracht ist.
EP88120707A 1987-12-18 1988-12-12 Vorrichtung zum Ankoppeln einer metallurgischen Pfanne an die Gasversorgung Expired - Lifetime EP0320841B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88120707T ATE102259T1 (de) 1987-12-18 1988-12-12 Vorrichtung zum ankoppeln einer metallurgischen pfanne an die gasversorgung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU87082A LU87082A1 (fr) 1987-12-18 1987-12-18 Dispositif d'accouplement d'une poche metallurgique a un reseau de gaz
LU87082 1987-12-18

Publications (4)

Publication Number Publication Date
EP0320841A2 EP0320841A2 (de) 1989-06-21
EP0320841A3 EP0320841A3 (en) 1990-02-28
EP0320841B1 EP0320841B1 (de) 1994-03-02
EP0320841B2 true EP0320841B2 (de) 1998-03-11

Family

ID=19730999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120707A Expired - Lifetime EP0320841B2 (de) 1987-12-18 1988-12-12 Vorrichtung zum Ankoppeln einer metallurgischen Pfanne an die Gasversorgung

Country Status (10)

Country Link
US (1) US4883259A (de)
EP (1) EP0320841B2 (de)
AT (1) ATE102259T1 (de)
AU (1) AU611238B2 (de)
BR (1) BR8806756A (de)
CA (1) CA1317105C (de)
DE (1) DE3888121T3 (de)
ES (1) ES2050147T5 (de)
LU (1) LU87082A1 (de)
ZA (1) ZA889418B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5065986A (en) * 1990-07-30 1991-11-19 Insul Company, Inc. Automatic gas hookup to a ladle
LU88014A1 (fr) * 1991-10-09 1993-05-17 Wurth Paul Sa Dispositif d'accouplement automatique entre des conduites sur une station de traitement et une poche métallurgique
FR2694511A1 (fr) * 1992-08-05 1994-02-11 Lorraine Laminage Dispositif de raccordement automatique sur un circuit d'alimentation fixe d'un circuit de fluide gazeux d'une poche de métal liquide.
LU88457A1 (fr) * 1994-02-02 1995-09-01 Wurth Paul Sa Dispositif pour l'accouplement d'un chariot métallurgique à une conduite flexible
LU88594A1 (de) * 1995-03-03 1996-10-04 Wurth Paul Sa Vorrichtung zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen
LU90181B1 (de) * 1997-12-04 1999-06-07 Wurth Paul Sa Kupplungsvorrichtung
DE102004027531B3 (de) * 2004-06-02 2005-06-09 Mannesmannröhren-Werke Ag Kupplung zum Ankuppeln eines metallurgischen Gefäßes an Gasspülleitungen
KR101060726B1 (ko) 2009-12-17 2011-08-30 (주)인영 래들용 오토 커플러 연결 구조체
CN111288242A (zh) * 2020-03-30 2020-06-16 无锡巨力重工股份有限公司 自动公接头和承载罐座的连接结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275557B (de) * 1959-11-25 1968-08-22 Salzgitter Huettenwerk Ag Vorrichtung zum Auf- oder Einblasen von Gasen, vornehmlich von Sauerstoff, sowie vonGas-Feststoff-Gemischen auf oder in Metall-, insbesondere Eisenbaeder
AT339356B (de) * 1975-02-25 1977-10-10 Voest Ag Vorrichtung zum spulen von stahl
DE2831647C2 (de) * 1978-07-19 1980-02-21 Mannesmann Demag Ag, 4100 Duisburg Kupplung zum Anschließen von Versorgungsgasleitungen an metallurgischen Gefäßen
US4502670A (en) * 1984-02-02 1985-03-05 Allied Corporation Gas hook-up to a ladle

Also Published As

Publication number Publication date
ZA889418B (en) 1989-10-25
CA1317105C (en) 1993-05-04
AU611238B2 (en) 1991-06-06
EP0320841B1 (de) 1994-03-02
EP0320841A3 (en) 1990-02-28
ES2050147T5 (es) 1998-06-16
DE3888121T3 (de) 1998-07-23
DE3888121T2 (de) 1994-06-09
BR8806756A (pt) 1989-08-29
DE3888121D1 (de) 1994-04-07
EP0320841A2 (de) 1989-06-21
US4883259A (en) 1989-11-28
ES2050147T3 (es) 1994-05-16
AU2706388A (en) 1989-06-22
ATE102259T1 (de) 1994-03-15
LU87082A1 (fr) 1989-07-07

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