EP0446406A1 - Obturateur coulissant pour un récipient métallurgique, en particulier une poche de coulée - Google Patents

Obturateur coulissant pour un récipient métallurgique, en particulier une poche de coulée Download PDF

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Publication number
EP0446406A1
EP0446406A1 EP90116177A EP90116177A EP0446406A1 EP 0446406 A1 EP0446406 A1 EP 0446406A1 EP 90116177 A EP90116177 A EP 90116177A EP 90116177 A EP90116177 A EP 90116177A EP 0446406 A1 EP0446406 A1 EP 0446406A1
Authority
EP
European Patent Office
Prior art keywords
plate
slide
box
cover plate
frame
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.)
Withdrawn
Application number
EP90116177A
Other languages
German (de)
English (en)
Inventor
Kurt Flossdorf
Herbert Dr.-Ing. Wagner
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.)
Zimmermann and Jansen GmbH
Original Assignee
Zimmermann and Jansen GmbH
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
Application filed by Zimmermann and Jansen GmbH filed Critical Zimmermann and Jansen GmbH
Publication of EP0446406A1 publication Critical patent/EP0446406A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection

Definitions

  • the invention relates to a slide closure for a metallurgical casting vessel, in particular a ladle, with a slide plate, which is held in a displaceable frame and has at least one pouring opening and can be displaced against a top plate arranged above it and provided with a passage opening, the top plate being connected to a base of the casting vessel-connected mounting plate and the frame comprising the slide plate is mounted to slide back and forth within a slide housing connected to the mounting plate in the slide plate adjustment direction, the frame comprising the slide plate having pressing elements in the form of spring elements, by means of which the slide plate can be pressed against the head plate is.
  • Such a slide closure is generally known (DE-B-26 52 593; Ludwig Walther, the use of slide closures on the distribution channel of continuous casting plants, special print from "metallurgical practice, metal processing" 10/80; DE-A-36 16 115).
  • it cannot be prevented that ambient air is drawn into the pouring channel and poured into the molten metal during casting via the slide closure, in particular between the top plate and the slide plate. The result is uncontrolled metallurgical reactions that can severely affect the quality of the end product.
  • the present invention is based on the object of designing the slide closure mentioned at the outset in such a way that suction of ambient air in the region of the slide closure, which adversely affects the quality of the molten metal, is avoided.
  • the essence of the present invention therefore lies in creating an inert gas, in particular argon, gas environment around the slide closure or the slide housing. Sucking argon gas over the slide valve has proven to be harmless. All parts of the slide closure, via which ambient air could be sucked into the pouring channel during the pouring, should be arranged within a practically fluid-tight box into which an inert gas, in particular argon gas line opens, so that an inert gas environment can be produced within this box.
  • the slide closure according to the invention is therefore an "encapsulated" construction with which the disadvantages mentioned at the outset can be reliably avoided.
  • the box enclosing the slide housing is mounted on the floor, in particular on a base plate of the casting vessel, the lower cover plate facing away from the bottom of the casting vessel being articulated on one side of the box, so that the box for mounting or dismounting the slide and / or head plate or openable for maintenance of the slide closure, d. H. is accessible from the outside.
  • the aforementioned cover plate is closed and corresponds to a peripheral seal which is arranged either on the cover plate or on the edge of the box side walls facing the cover plate.
  • the box delimiting the inert gas environment is preferably approximately cuboid. Of course, a circular or oval-cylindrical design is equally conceivable.
  • the pouring spout connected to the slide plate extends in a fluid-tight manner through the box surrounding the slide housing, in particular through the aforementioned cover plate.
  • the fluid seal between the pouring spout or an immersion tube connected to it on the one hand and the box or the aforementioned cover plate of the same on the other hand is preferably formed by a bellows made of high temperature-resistant material connected to the edge of the box opening and extending around the pouring spout, the lower or the lower bellows
  • the rim facing away from the casting vessel bears sealingly on the outer lateral surface of the pouring spout or the dip tube connected to it.
  • the aforementioned bellows can be pretensioned by a coupling ring with simultaneous fluid-tight contact of the lower or the peripheral edge of the bellows facing away from the casting vessel on an annular seal arranged in the coupling ring, which, under the aforementioned preload, is also fluid-tight on the outer surface of the pouring spout or on it connected dip tube.
  • the ring seal therefore has a biaxial effect.
  • the aforementioned bellows can also cause thermal stress in the area of the pouring spout be dismantled.
  • the bellows together with the coupling ring is mounted or mountable on a slide frame mounted on the box or on the cover plate so that it can be pushed back and forth in the slide plate adjustment direction, the slide frame being sealed off from the box or its cover plate by sealing strips is.
  • the sliding frame slidably mounted on the box or on its lower cover is mechanically coupled to the slide plate frame, so that both frames can be pushed back and forth together by the slide plate adjustment device. In this way, the aforementioned encapsulation of the slide closure is maintained with each slide plate position.
  • the cover plate of the box is preferably held in a tight closed position by means of clamping wedges.
  • a slide closure for a metallurgical casting vessel such as a ladle or a tundish for pouring a metallic melt is shown in partial view or in partial section, this slide closure with a pouring opening held in a displaceable frame 9 18 having slide plate 5 is provided, which is displaceable against a head plate 4 arranged above it, provided with a through opening 19, the head plate 4 being fixed to a mounting plate 7 connected to the bottom 6 of the casting vessel and the frame 9 comprising the slide plate within a frame with the Mounting plate 7 connected slide housing 8 is mounted to slide back and forth in the slide plate adjustment direction.
  • the slide plate adjustment direction is identified in FIG. 2 by the double arrow 36.
  • the frame 9 comprising the slide plate 5 also has pressure elements in the form of spring elements 10, by means of which the slide plate 5 can be pressed against the head plate 4.
  • the aforementioned slide fastener construction is known per se, so that it is sufficient to list the parts identified by reference numerals in the figures as follows: Lower sleeve 1 Perforated brick 2 Upper sleeve 3 Head plate 4 Slider plate 5 Base plate 6 Mounting plate 7 with interchangeable ring 37 Slider housing 8 Slide frame 9 with slide rails or strips 38 Spring elements 10 Locking device 12 hinge side Locking device 13 latch side Lantern 14 with intermediate piece hydraulic cylinder 15 Piston rod 16 Hydraulic connections 17.
  • a gas-tight lockable box 11 is built around the slide closure including the slide housing 8, into which an inert gas, in particular argon gas line 20 (see FIG. 2) opens, so that an argon gas environment can be produced within the box 11.
  • argon gas is sucked into the pouring channel, which is metallurgically harmless.
  • the box 11 enclosing the slide housing 8 is mounted on the floor, namely on a base plate 6 of the casting vessel (screw connection 39), the lower cover plate 21 facing away from the bottom of the casting vessel being articulated on one side of the box 11 via hinge joints 22 (see. 1 and 3).
  • the box 11 can be opened in this way for assembly or disassembly of the slide and / or head plate or for maintenance of the slide closure, i. H. accessible from outside or below.
  • the aforementioned cover plate 21 corresponds to a circumferential seal 23 which is arranged on the edge 24 of the box side walls 25 facing the cover plate 21, namely within a circumferential groove formed on the end face.
  • the cover plate 21 In the sealing position, the cover plate 21 is held by clamping wedges 34 'as shown in FIGS. 1 and 2. In FIG. 3, the aforementioned cover plate 21 is also in the open, ie. H. shown folded down position, in dash-dotted lines.
  • the pouring spout 26 connected to the slide plate 5 extends in a fluid-tight manner through the box 11 surrounding the slide housing 8, namely through the cover plate 21.
  • the fluid seal between the pouring spout 26 or as here a dip tube 27 connected to it on the one hand and the box 11 or the cover plate 21 on the other hand is provided by a rim 28 of the cover plate opening through which the The aforementioned pouring spout 26 or the immersion tube 27 connected to it extend through, connected bellows 29, which extend around the pouring nozzle 26 or the immersion tube 27 connected to it, are made of high-temperature-resistant steel, the lower edge 40 or the edge 40 facing away from the casting vessel sealingly on the outer Shell surface of the pouring spout 26 or - as here - of the dip tube 27 connected to it.
  • the bellows 29 can be pretensioned by a coupling ring 30 with simultaneous fluid-tight abutment of the lower peripheral edge 40 on an annular seal 32 arranged in the coupling ring 30, which is fluid-tight on the outer circumferential surface of the immersion tube under the aforementioned prestress 27 creates.
  • the coupling ring 30 can be screwed into a recess of the cover plate 21 from below and is fixed in the screwed-in position by the axial prestressing of the bellows 29.
  • the upper peripheral edge 41 of the bellows 29 is screwed to the bottom of the cover plate depression 31 (screw connection 42 in FIG. 2).
  • the bellows 29 together with the coupling ring 30 is mounted in a slide frame 33 mounted on the cover plate 21 in a slide plate adjustment direction, the slide frame 33 being sealed by sealing strips 34 with respect to the box 11 or its cover plate 21.
  • the back and forth movement of the slide frame 33 is identified in FIG. 2 by the double arrow 43.
  • the slide frame 33 is mechanically coupled to the slide plate slide frame 9, so that both frames 9 and 33 can be pushed back and forth together by the slide plate adjusting device 15, 16, 17 in the direction of the double arrow 36 or double arrow 43.
  • the mechanical coupling of the Both of the above-mentioned sliding frames are followed in the embodiment shown by stop bolts 44 '.
  • the slide frame 33 is inside of the box 11 on the cover plate 21 of the same along sliding rails 44 out and pushed out.
  • Both the cover plate 21 and the slide frame 33 are provided with a heat-resistant protective plate or a heat-resistant protective shield 45. This is located on the side of the cover plate 21 and slide frame 33 facing away from the casting vessel.
  • the protective box 11 is approximately cuboid. In principle, a circular or oval cylindrical design is also conceivable.
  • the lantern 14 must also be connected to the box 11 in a fluid-tight manner.
  • the intermediate piece 46 which is arranged between the slide sliding frame 9 and the piston rod 16 of the slide plate actuator 15 and extends through the lantern 14, is also introduced into the box 11 in a fluid-tight manner.
  • the intermediate piece 46 extends through ring seals 47 arranged on the box side.
  • the argon gas line 20 is connected to an argon gas source, not shown.
  • Pressure regulating devices are also provided, by means of which the introduction of argon gas into the protective box 11 can be regulated such that an argon gas atmosphere with a predetermined pressure prevails inside the protective box 11, which pressure is always greater than the external air pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP90116177A 1990-03-13 1990-08-23 Obturateur coulissant pour un récipient métallurgique, en particulier une poche de coulée Withdrawn EP0446406A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904007993 DE4007993A1 (de) 1990-03-13 1990-03-13 Schieberverschluss fuer ein metallurgisches giessgefaess, insbesondere eine giesspfanne
DE4007993 1990-03-13

Publications (1)

Publication Number Publication Date
EP0446406A1 true EP0446406A1 (fr) 1991-09-18

Family

ID=6402100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116177A Withdrawn EP0446406A1 (fr) 1990-03-13 1990-08-23 Obturateur coulissant pour un récipient métallurgique, en particulier une poche de coulée

Country Status (2)

Country Link
EP (1) EP0446406A1 (fr)
DE (1) DE4007993A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295978A (en) * 1994-12-16 1996-06-19 Concast Standard Ag Supplying steel to a continuous casting mould
FR2732916A1 (fr) * 1995-04-14 1996-10-18 Vesuvius France Sa Tiroir etanche aux gaz pour conteneur metallurgique
DE10235066A1 (de) * 2002-07-31 2004-02-26 Intocast Ag Schieberlochstein
US8012405B2 (en) 2004-11-26 2011-09-06 Heraeus Electro-Nite International N.V. Regulation method for melt throughflow through a melt throughflow aperture
WO2013000880A1 (fr) * 2011-06-27 2013-01-03 Knöllinger FLO-TEC GmbH Fermeture à tiroir pour cuve de coulée métallurgique, en particulier pour poche de coulée

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1261973B (it) * 1992-12-15 1996-06-11 Dispositivo per l'azionamento automatico di scaricatori a cassetto,in generale per contenitori di metallo liquido
DE10213041C1 (de) * 2002-03-22 2003-11-13 Uwe Bovenschen Gießpfannen-Schieberverschluss-System
AU2007316871A1 (en) * 2006-11-08 2008-05-15 Stopinc Aktiengesellschaft Device for a container for nonferrous molten metal, having a locking unit and a protective cap
DE202015103079U1 (de) 2015-06-12 2015-07-01 Knöllinger FLO-TEC GmbH Schieberverschluss für einen metallurgischen Behälter
DE102020111695B3 (de) 2020-04-29 2021-07-15 Knöllinger FLO-TEC GmbH Schieberverschluss mit innenliegendem Dichtkörper und Verfahren zu dessen Montage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271892A1 (fr) * 1974-05-24 1975-12-19 Metacon Ag
FR2395095A1 (fr) * 1977-06-24 1979-01-19 Detalle Pol Perfectionnements aux obturateurs a tiroir pour poches de coulee ou autres recipients de metal en fusion presentant un trou de coulee
EP0048641A1 (fr) * 1980-09-15 1982-03-31 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Protection d'un métal en fusion dans un obturateur à plaques
FR2530167A1 (fr) * 1982-07-13 1984-01-20 Air Liquide Procede et installation de protection d'un jet de coulee de metal liquide
JPS613653A (ja) * 1984-06-15 1986-01-09 Kawasaki Steel Corp シ−ル機構を有するスライデイングノズル装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2834746C2 (de) * 1978-08-08 1982-07-29 Hamburger Stahlwerke Gmbh, 2103 Hamburg Abschirmvorrichtung für einen Gießstrahl aus flüssigem Metall

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271892A1 (fr) * 1974-05-24 1975-12-19 Metacon Ag
FR2395095A1 (fr) * 1977-06-24 1979-01-19 Detalle Pol Perfectionnements aux obturateurs a tiroir pour poches de coulee ou autres recipients de metal en fusion presentant un trou de coulee
EP0048641A1 (fr) * 1980-09-15 1982-03-31 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Protection d'un métal en fusion dans un obturateur à plaques
FR2530167A1 (fr) * 1982-07-13 1984-01-20 Air Liquide Procede et installation de protection d'un jet de coulee de metal liquide
JPS613653A (ja) * 1984-06-15 1986-01-09 Kawasaki Steel Corp シ−ル機構を有するスライデイングノズル装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 146 (M-482)[2203], 28. Mei 1986; & JP-A-61 003 653 (KAWASAKI SEITETSU K.K.) 09-01-1986 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295978A (en) * 1994-12-16 1996-06-19 Concast Standard Ag Supplying steel to a continuous casting mould
GB2295978B (en) * 1994-12-16 1998-07-15 Concast Standard Ag Arrangement for supplying steel into a continuous casting mould
FR2732916A1 (fr) * 1995-04-14 1996-10-18 Vesuvius France Sa Tiroir etanche aux gaz pour conteneur metallurgique
DE10235066A1 (de) * 2002-07-31 2004-02-26 Intocast Ag Schieberlochstein
DE10235066B4 (de) * 2002-07-31 2004-07-22 Intocast Ag Schieberlochstein
US8012405B2 (en) 2004-11-26 2011-09-06 Heraeus Electro-Nite International N.V. Regulation method for melt throughflow through a melt throughflow aperture
US8273288B2 (en) * 2004-11-26 2012-09-25 Rhi Ag Regulation method for throughflow and bottom nozzle of a metallurgical vessel
WO2013000880A1 (fr) * 2011-06-27 2013-01-03 Knöllinger FLO-TEC GmbH Fermeture à tiroir pour cuve de coulée métallurgique, en particulier pour poche de coulée
EP2979778A1 (fr) 2011-06-27 2016-02-03 Knollinger Flo-Tec GMBH Fermeture à tiroir pour cuve de coulée métallurgique, en particulier pour poche de coulée
DE202011111055U1 (de) 2011-06-27 2018-12-12 Knöllinger FLO-TEC GmbH Schieberverschluss für ein metallurgisches Gießgefäß, insbesondere Gießpfanne

Also Published As

Publication number Publication date
DE4007993A1 (de) 1991-09-19

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