EP0320841B1 - 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
EP0320841B1
EP0320841B1 EP88120707A EP88120707A EP0320841B1 EP 0320841 B1 EP0320841 B1 EP 0320841B1 EP 88120707 A EP88120707 A EP 88120707A EP 88120707 A EP88120707 A EP 88120707A EP 0320841 B1 EP0320841 B1 EP 0320841B1
Authority
EP
European Patent Office
Prior art keywords
ladle
base
male
connection member
action
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)
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EP0320841A2 (de
EP0320841B2 (de
EP0320841A3 (en
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(B1) "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
Publication of EP0320841B1 publication Critical patent/EP0320841B1/de
Application granted granted Critical
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

  • Said coupling station comprises a first pneumatic translation cylinder, from which a second pneumatic coupling cylinder is suspended in a pendulum.
  • the latter axially supports a female connection element which is connected to said gas distribution network.
  • This female element can be engaged under the action of the two pneumatic cylinders on a male connection element which is arranged on the metallurgical ladle and connected to a gas pipe installed thereon.
  • the object of the present invention is to provide a device for automatically connecting a metallurgical ladle to a gas network, which comprises a male connection element which can be axially engaged in a female connection element, and which can also be used when the side access to the pocket is difficult, if not impossible.
  • the proposed device therefore allows automatic coupling of the bag to the gas network, without manual intervention and without any other operation than the simple introduction of the bag into the structure receiving the bag.
  • the proposed device uses the movement of the pocket to achieve the junction of the male and female connecting element.
  • the proposed device comprises a base which is carried by the receiving structure so as to be able to slide in two mutually perpendicular directions against the action of springs.
  • the female element is preferably mounted in the foot so as to be able to slide vertically against the action of a spring provided inside the foot.
  • the male connection element has the shape of a cone with a rounded top
  • the female connection element has the shape of a conical cup 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 provided with an O-ring sealing the connection.
  • the male connection element comprises a passage communicating with said gas distribution network and opening axially from the male element at its rounded apex, a valve mounted in this passage so as to cut communication with the gas network under the action of a spring, and a plunger axially slidable in this passage so as to open, by axial penetration in the male element, said valve against the action of its spring.
  • Said plunger opens advantageously with one end of the rounded top, so that its penetration into the male element occurs automatically during the axial engagement 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 spring.
  • the base supporting the male element is provided on the side opposite to the male element with a cavity having the shape of a parallelepiped.
  • the bottom of this cavity defines a sliding plane perpendicular to the connecting axis, which is supported and can slide on a support block secured to the structure receiving the pocket.
  • This block is crossed by two sets of rods superimposed on a cross and sliding in the block. The ends of these rods are provided with pads which are in sliding support along opposite walls of said cavity. The self-centering of the male element in the female element, during the coupling action, is done accordingly by sliding the base on the support block.
  • At least one rod of each set of rods is surrounded by two springs mounted between the outer pads and the support block, to ensure a central position of the base relative to the support block.
  • the base is mounted in a housing in which it can be slid in a first direction defined by guide rods which pass through it and which are fixed in the housing.
  • This housing is slidable in a second direction in a frame secured to the structure receiving the pocket. Said second direction is perpendicular to said first direction and is defined by guide rods fixed in the chassis.
  • the base 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 female connection element telescopically mounted in a foot 12, which is in turn fixed to the lower part of the outer wall of a metallurgical ladle 14 as shown in Figure 2.
  • Element 10 can be pressed a certain distance into the foot 12 against the action of a helical spring 16 disposed around the body 18 of the element 10 and bearing respectively on an internal shoulder of the foot 12 and an external shoulder of the body 18.
  • the element 10 is traversed 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 lower part of the connection element 10 comprises a bowl 24 of shape generally conical, open at the bottom and with a rounded bottom.
  • This bowl 24 is used to receive a male connection head 26 also of conical shape, but at a greater inclination than the conicity of the bowl 24.
  • This connection head 26 has a rounded top conforming to the curvature of the bottom of the bowl 24 of so as to follow the shape of it.
  • An O-ring 28 provided on the top 26a of the head 26 seals when the elements are coupled as shown in FIG. 1.
  • the head 26 is mounted on a base 30 which is carried by the bottom 32 of the support for the bag 14. According to one of the features of the device proposed, 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 an open bottom, of rectangular or square section and with vertical internal 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 sliding layer 38 which carries the base 30 while allowing relatively easy sliding thereof on the block 36.
  • a guide system which maintains it relative to the support block 36.
  • a first set of rods 40 is slidably housed in the block 36 and comprises at its opposite ends two pads 42, 44 sliding on the opposite vertical walls of the base 30.
  • the studs 46 and 48 act as a stop, preventing the inadvertent lifting of the base 30.
  • This base can slide in the direction perpendicular to the plane of FIG. 1 by relative movements between the pads 42, 44 and guide surfaces 46, 48 of the base.
  • a second set of rods 50 is arranged perpendicular to the set of rods 40 in the block 36 and also includes, like these, pads not shown, bearing on the vertical walls not visible in the figure of the base 30.
  • the pads of these rods allow a displacement of the base 30 to the left and the right in the figure 1 by sliding the rods 40 in the support block 36.
  • each rod of each set of rods 40 and 50 is surrounded by two helical springs 52, 54 bearing respectively on the block 36 and each of the two outer pads 42, 44.
  • the sliding of the base 30 in the plane of Figure 1 is made against the action of one of the springs 52, 54 while the sliding in the direction perpendicular to the plane of Figure 1 is made against the action of the springs of the set of rods 50.
  • FIG. 2 schematically illustrates these degrees of freedom by arrows defining a rectangle of freedom of movement whose sides are 50 by 100 mm.
  • the base 30 further comprises an internal pipe 56 for the admission of the gases for processing the liquid metal contained in the pocket 14 and which is connected to an articulated or flexible pipe 59 of the gas distribution network.
  • this pipe 59 has rotary connectors 61 to allow the base 30 to move on the bottom 32 of the bag support.
  • the channel 56 opens into a chamber 58 provided in the upper part of the base 30 and in the interior of the connection head 26 and which is extended by an axial passage 60 towards the top 26a of this head.
  • this chamber 58 there is an automatic valve for automatically cutting or establishing communication with the pipe 59 of the gas network.
  • This valve consists of a piston 62 sliding axially in a guide sleeve 64 which is surrounded by a spring 66.
  • This spring 66 applies the piston 62, which is provided with an O-ring 68, against a shoulder defined between the chamber 58 and 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 disposed in the passage 60 and resting freely on the piston 62.
  • the plunger 70 has an appropriate section so as not to block. the passage of gas, for example a cross-shaped section as shown in a medallion.
  • the length of the plunger 70 is slightly greater than that of the passage 60 so that its upper end exceeds the top of the head 26 when the valve is closed and that it can be depressed by the installation of the female connection element 10 to open this valve as shown in Figure 1.
  • the proposed device uses the movement of the bag to automatically connect to the gas network.
  • the descent of the foot 12 in the direction of the base 30 ensures, from the penetration of the head 26 in the bowl 24, a self-centering of these connection elements by sliding of the base 30 on its support.
  • the complementary curvatures of the top 26a of the head 26 and of the bottom of the bowl 24 also make it possible to compensate for small misalignments.
  • the automatic valve is opened by depressing the plunger 70 as soon as the latter is actuated by the bottom of the bowl 24.
  • the connection finally ends with a slight penetration of the female connection element 10 in the foot 12 against the action of the spring 16.
  • the coupling elements are the same as those in the embodiment of Figure 1, except that the coil spring 16 has been replaced by a spring discs 80 and that the flat-head piston 62 of the automatic valve has been replaced by a conical piston 82.
  • the mounting of the base 84 of the male connection element 26 to ensure two degrees of freedom from the support is carried by two rods 86, 88 which pass through 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 sockets balls 90 around each of these rods 86, 88.
  • the central position of the base 84 in the housing 92 is ensured 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 superimposed rods 98, 100 passing through this assembly and which are integral with a frame 102 fixed on the floor of the pocket support.
  • This sliding of the base 84 and of the housing 92 to the left and to the right in FIG. 3 is facilitated by ball bushings 104, provided around the rods 98 and 100 at the level of the passage through the housing 92.
  • the central position of the housing 92 compared to chassis 102 is provided by springs 106 provided at least on one of the rods 98 or 100 on either side of the housing 92 and bearing on the chassis 102.

Landscapes

  • 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 (10)

1. Vorrichtung zum automatischen Anschließen einer metallurgischen Pfanne an die Gasversorgung, wobei diese Pfanne zu diesem Zweck durch eine Einführungsbewegung in ein Aufnahmegerüst eingesetzt wird, und diese Vorrichtung ein inneres Anschlußteil aufweist, das in axialer Richtung in ein äußeres Anschlußteil so einschiebbar ist, daß eine Verbindung zwischen der Gasversorgung und einer mit der Pfanne fest verbundenen Rohrleitung hergestellt wird, gekennzeichnet durch:
- einen Sockel (30, 84), der von dem Aufnahmegerüst so getragen wird, daß er zwei Freiheitsgrade in einer zu dieser Einführungsbewegung senkrechten Ebene besitzt, wobei dieser Sockel mit dem inneren Anschlußteil (26) versehen ist, das einen axialen Durchgang (60) aufweist, der mit der Gasversorgung (59) in Verbindung steht;
- einen Fuß (12), der mit der Pfanne (14) fest verbunden ist und mit dem äußeren Anschlußteil (10) versehen ist, in dem in axialer Richtung ein Durchgang (20) angebracht ist, der an die mit der Pfanne fest verbundene Rohrleitung (22) angeschlossen ist;
- wobei der innere Anschlußkopf (26) und das äußere Anschlußteil (10) so angeordnet und ausgerichtet sind, daß das äußere Anschlußteil (10) nur durch die Einführungsbewegung der Pfanne in dieses Aufnahmegerüst in axialer Richtung auf das innere Anschlußteil (26) aufschiebbar ist.
2. Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß der Sockel (30, 84) von diesem Aufnahmegerüst so getragen wird, daß er entgegen der Wirkung von Federn (52, 54), (94, 96, 106) in zwei zueinander senkrechten Richtungen verschiebbar ist.
3. Vorrichtung gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß das äußere Anschlußteil (10) in dem Fuß (12) so angebracht ist, daß es dort in vertikaler Richtung entgegen der Wirkung einer innerhalb des Fußes (12) vorgesehenen Feder (16, 80) verschiebbar ist.
4. Vorrichtung gemäß irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das innere Anschlußteil (26) die Form eines Konus mit einer verrundeten Spitze (26a) hat, und daß das äußere Anschlußteil (10) die Form einer konischen Mulde (24) hat, die auf diesen Konus aufschiebbar ist, und deren Boden verrundet ist, um an der verrundeten Spitze (26a) des inneren Anschlußteils (26) anzuliegen.
5. Vorrichtung gemäß Anspruch 4, dadurch gekennzeichnet, daß die Spitze (26a) des inneren Anschlußteils (26) mit einer Ringdichtung (28) versehen ist.
6. Vorrichtung gemäß Anspruch 4 oder 5, dadurch gekennzeichnet, daß das innere Anschlußteil (26) versehen ist mit einem Durchgang, der mit der Gasversorgung (59) in Verbindung steht und in der axialen Richtung des inneren Anschlußteils (26) im Bereich seiner Spitze (26a) mündet, einem Ventil, das in diesem Durchgang so angebracht ist, daß es infolge der Wirkung einer Feder (66) die Verbindung mit der Gasversorgung (59) unterbricht, und einem Tauchstab (70), der in axialer Richtung in diesem Durchgang so verschiebbar ist, daß er durch axiale Eindringung in das innere Anschlußteil (26) dieses Ventil entgegen der Wirkung seiner Feder (66) öffnet, wobei dieser Tauchstab an einem Ende über die Spitze (26) übersteht, so daß die axiale Eindringung des Tauchstabs (70) in das innere Anschlußteil (26) durch axiale Aufschiebung des äußeren Anschlußteils (10) auf das innere Anschlußteil (26) erfolgt.
7. Vorrichtung gemäß irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Sockel (30) auf der zu dem inneren Anschlußteil (26) entgegengesetzten Seite mit einem Hohlraum (34) versehen ist, der die Form eines Parallelepipeds hat, daß der Boden diese Hohlraums (34) eine zu der Anschlußachse senkrechte, ebene Oberfläche bildet, daß der Sokkel (30) mit dieser ebenen Oberfläche auf einem Auflageblock (36) gleitbar aufliegt, der mit dem Aufnahmegerüst der Pfanne fest verbunden ist, und daß durch diesen Auflageblock (36) zwei kreuzförmig übereinander angeordnete Stangensätze (40, 50) hindurchgeführt sind, wobei die Stangen dieser Stangensätze in dem Auflageblock (36) verschiebbar sind, und ihre Enden mit Kufen (42, 44) versehen sind, die auf einander gegenüberliegenden, seitlichen Wänden des Hohlraums (34) gleitbar aufliegen.
8. Vorrichtung gemäß Anspruch 7, dadurch gekennzeichnet, daß mindestens eine Stange jedes Stangensatzes (40, 50) von zwei Federn (52, 54) umgeben ist, die zwischen den äußeren Kufen (42, 44) und dem Auflageblock (36) angebracht sind, um eine zentrale Position des Sockels (30) bezüglich des Auflageblocks (36) sicherzustellen.
9. Vorrichtung gemäß irgendeinem der Ansprüche 1 bis 6, 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) festgelegt ist, die durch ihn hindurchgeführt sind in dem Sitz (92) befestigt sind, und daß der Sitz (92) in einem mit dem Aufnahmegerüst der Pfanne fest verbundenen Rahmen (102) in einer zu dieser ersten Richtung senkrechten, zweiten Richtung verschiebbar ist, wobei diese zweite Richtung durch in dem Rahmen (102) befestigte Führungsstangen (98, 100) festgelegt ist.
10. Vorrichtung gemäß Anspruch 9, dadurch gekennzeichnet, daß der Sockel und sein Sitz (92) infolge der Wirkung von Federn (94, 96, 106), die einerseits zwischen dem Sockel (84) und seinem Sitz (92), und andererseits zwischen dem Sitz (92) und dem Rahmen (102) angebracht sind, in einer zentralen Position bezüglich des Rahmens (102) gehalten werden.
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
LU87082 1987-12-18
LU87082A LU87082A1 (fr) 1987-12-18 1987-12-18 Dispositif d'accouplement d'une poche metallurgique a un reseau de gaz

Publications (4)

Publication Number Publication Date
EP0320841A2 EP0320841A2 (de) 1989-06-21
EP0320841A3 EP0320841A3 (en) 1990-02-28
EP0320841B1 true EP0320841B1 (de) 1994-03-02
EP0320841B2 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
US4883259A (en) 1989-11-28
CA1317105C (en) 1993-05-04
AU611238B2 (en) 1991-06-06
AU2706388A (en) 1989-06-22
DE3888121T2 (de) 1994-06-09
ZA889418B (en) 1989-10-25
LU87082A1 (fr) 1989-07-07
EP0320841A2 (de) 1989-06-21
BR8806756A (pt) 1989-08-29
ES2050147T3 (es) 1994-05-16
ES2050147T5 (es) 1998-06-16
DE3888121T3 (de) 1998-07-23
ATE102259T1 (de) 1994-03-15
DE3888121D1 (de) 1994-04-07
EP0320841B2 (de) 1998-03-11
EP0320841A3 (en) 1990-02-28

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