EP0320841A2 - 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
EP0320841A2
EP0320841A2 EP88120707A EP88120707A EP0320841A2 EP 0320841 A2 EP0320841 A2 EP 0320841A2 EP 88120707 A EP88120707 A EP 88120707A EP 88120707 A EP88120707 A EP 88120707A EP 0320841 A2 EP0320841 A2 EP 0320841A2
Authority
EP
European Patent Office
Prior art keywords
base
support
ladle
action
head
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.)
Granted
Application number
EP88120707A
Other languages
English (en)
French (fr)
Other versions
EP0320841A3 (en
EP0320841B2 (de
EP0320841B1 (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
Family has litigation
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(A2) "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 to a device for coupling a metallurgical ladle to a network of molten metal treatment gases located in the ladle and which is injected from the bottom of the ladle into the liquid metal in a treatment station. where the pocket is placed, for this purpose, on a support.
  • Connection to the gas network is generally carried out manually. Needless to say, given the environment, this is an accident risk operation and is, moreover, a waste of time.
  • the object of the present invention is to provide a coupling device of the kind described in the preamble, which allows a completely automatic connection to the gas network by the establishment of the pocket on the carriage.
  • the coupling device proposed by the present invention is characterized, in a preferred embodiment, by a base mounted on the bottom of the support so as to be able to slide in two mutually perpendicular directions against the action of springs and provided with a male connection head crossed by an axial passage communicating with the gas network and by a foot fixed on the pocket and provided with a female connection element to be engaged on the connection head when the pocket is placed in its support.
  • the female element is preferably mounted in the foot so as to be able to slide therein vertically under and against the action of a spring provided inside the foot around the body of the female element.
  • connection head is in the form of a cone with rounded top
  • female element is in the form of a conical bowl open at the bottom, wider than the head and whose bottom is rounded. as a complement to the curvature of the top of the connection head.
  • connection head preferably includes a valve intended to cut communication with the gas network under the action of a spring and subjected to the action of a plunger passing through the passage in the head. connection and whose penetration into the head under the action of the engagement of the female element on the connection head opens the valve against the action of its spring.
  • connection head in two perpendicular directions, associated with the particular shape of the connection elements allows self-alignment and self-centering of the latter by sliding the base on the support and thus makes it possible to compensate for small defects. alignment of the elements to be connected.
  • the bottom of the base is designed in the form of a cavity with vertical walls and rectangular or square section in sliding support on a support block secured to the bottom of the carriage.
  • This block is crossed by two sets of rods superimposed and arranged in a cross which can slide through the block and the ends of which are provided with pads, respectively, sliding bearing on the opposite internal walls of said cavity.
  • At least one of each set of rods is preferably surrounded by two springs bearing respectively on the outer shoes and the block to ensure a neutral central position of the rods.
  • FIG. 1 shows a female connection element 10 mounted telescopically in a foot 12 which is in turn fixed on the lower part of the outer wall of a metallurgical ladle 14 as shown in Figure 2.
  • the 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 inner shoulder of the foot 12 and an external shoulder 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 lower part of the 'connecting element 10 comprises a bowl 24 of generally conical shape, open at the bottom and whose bottom is rounded.
  • This bowl 24 serves 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.
  • 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 of the latter on the block 36.
  • a guide system which holding 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 play the role of stop, preventing the inadvertent lifting of the base 30.
  • This base can slide in the direction perpendicular to the plane of Figure 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 50 and also comprises, like this one of the pads not shown, bearing on the vertical walls not visible in the figure of the base 30.
  • the pads of this rod allow the base 30 to move to the left and the right in FIG. 1 by sliding the rod 40 in the support block 36.
  • 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 surrounding the rod set 50.
  • Figure 2 schematically illustrates these freedom of movement by arrows representing a freedom of movement rectangle 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 network. distribution of this gas.
  • This pipe 59 has rotary connections 61 to allow the movement of the base 30 on the bottom 32 of the carriage.
  • 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 60 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 whose action 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 in the form of a cross 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 device proposed by the present invention uses the movement of the pocket to automatically make the connection to the gas network.
  • the descent of the foot 12 in the direction of the base 30 in fact, from the penetration of the head 26 in the bowl 24, self-centering of these elements by sliding 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 pressing 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 connection element 10 into 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 piston 62 with a flat head of the automatic valve has been replaced by a conical piston 82.
  • the base 84 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 to 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 relative to the 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.
  • 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 FIGS. 1 and 2, that is to say in a first direction relative to its housing 92 and in a direction perpendicular to the latter with its housing relative to the frame 102.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
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 true EP0320841A2 (de) 1989-06-21
EP0320841A3 EP0320841A3 (en) 1990-02-28
EP0320841B1 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)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537536A1 (de) * 1991-10-09 1993-04-21 Paul Wurth S.A. Vorrichtung zum automatischen Ankuppeln von Versorgungsleitungen an ein metallurgisches Gefäss
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.
EP0666324A1 (de) * 1994-02-02 1995-08-09 Paul Wurth S.A. Vorrichtung zum Ankuppern eines Verfahrbaren metallurgischen Gefässes an eine flexibele Gasleitung
EP0729797A1 (de) * 1995-03-03 1996-09-04 Paul Wurth S.A. Vorrichtung und Verfahren zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen
WO1999029912A1 (de) * 1997-12-04 1999-06-17 Paul Wurth S.A. Kupplungsvorrichtung zum ankuppeln einer metallurgischen pfanne an eine oder mehrere versorgungsleitungen

Families Citing this family (4)

* 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
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

Citations (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
FR2302156A1 (fr) * 1975-02-25 1976-09-24 Voest Ag Dispositif pour le rincage de l'acier en
EP0007038A1 (de) * 1978-07-19 1980-01-23 Mannesmann Demag AG Kupplung zum Anschliessen von Versorgungsgasleitungen an metallurgischen Gefässen
US4502670A (en) * 1984-02-02 1985-03-05 Allied Corporation Gas hook-up to a ladle

Patent Citations (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
FR2302156A1 (fr) * 1975-02-25 1976-09-24 Voest Ag Dispositif pour le rincage de l'acier en
EP0007038A1 (de) * 1978-07-19 1980-01-23 Mannesmann Demag AG Kupplung zum Anschliessen von Versorgungsgasleitungen an metallurgischen Gefässen
US4502670A (en) * 1984-02-02 1985-03-05 Allied Corporation Gas hook-up to a ladle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
STAHL- UND EISEN, vol. 107, nos. 25-26, 14 décembre 1987, page 1213; "Automatisches Ankuppeln der Sp}lgasleitung an Giesspfannen" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537536A1 (de) * 1991-10-09 1993-04-21 Paul Wurth S.A. Vorrichtung zum automatischen Ankuppeln von Versorgungsleitungen an ein metallurgisches Gefäss
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.
EP0666324A1 (de) * 1994-02-02 1995-08-09 Paul Wurth S.A. Vorrichtung zum Ankuppern eines Verfahrbaren metallurgischen Gefässes an eine flexibele Gasleitung
US5520374A (en) * 1994-02-02 1996-05-28 Paul Wurth S.A. Device for coupling a metallurgical carriage to a flexible conduit
EP0729797A1 (de) * 1995-03-03 1996-09-04 Paul Wurth S.A. Vorrichtung und Verfahren zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen
US5823221A (en) * 1995-03-03 1998-10-20 Paul Wurth S.A. Device and method for the automatic coupling of a teeming ladle to one or more gas pipes
AU707100B2 (en) * 1995-03-03 1999-07-01 Paul Wurth S.A. Device and method for the automatic coupling of a teeming ladle to one or more gas pipes
WO1999029912A1 (de) * 1997-12-04 1999-06-17 Paul Wurth S.A. Kupplungsvorrichtung zum ankuppeln einer metallurgischen pfanne an eine oder mehrere versorgungsleitungen

Also Published As

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

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