EP0332868B1 - Dreh- und/oder Schieberverschluss für einen Ausguss eines Metallschmelze enthaltenden Gefässes. - Google Patents

Dreh- und/oder Schieberverschluss für einen Ausguss eines Metallschmelze enthaltenden Gefässes. Download PDF

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Publication number
EP0332868B1
EP0332868B1 EP89102654A EP89102654A EP0332868B1 EP 0332868 B1 EP0332868 B1 EP 0332868B1 EP 89102654 A EP89102654 A EP 89102654A EP 89102654 A EP89102654 A EP 89102654A EP 0332868 B1 EP0332868 B1 EP 0332868B1
Authority
EP
European Patent Office
Prior art keywords
valve member
valve
outlet
stationary
movable
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
EP89102654A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0332868A1 (de
Inventor
José GIMPERA
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Priority to AT89102654T priority Critical patent/ATE77279T1/de
Publication of EP0332868A1 publication Critical patent/EP0332868A1/de
Application granted granted Critical
Publication of EP0332868B1 publication Critical patent/EP0332868B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • 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

Definitions

  • the invention relates to a rotary and / or slide closure for a particularly long spout of a metal-containing vessel, consisting of a refractory, immovable closure part with a cylindrical inner surface and a sealable rotatable and / or displaceable, refractory, movable closure part with a cylindrical outer surface, which lies sealingly in the inner surface of the immovable closure part, the immovable closure part having at least one inlet opening and at least one outlet opening and the movable closure part being provided with a connecting channel through which the inlet and outlet openings of the immovable closure part in the open position of the Closure are interconnected.
  • the connecting channel of the movable closure part designed as a rotor is formed by openings which extend radially to the diameter of the rotor. These weaken the strength of the rotor.
  • EP 0 078 760 describes a rotary roller lock. This can only be arranged outside a metallurgical vessel. In addition, it has the disadvantage that the two rollers must be pressed together with high force. In addition, there is only one line available for sealing around the circumference of the two rollers.
  • a twist lock is also known, the immovable closure part of which has a rounded annular trough with an axially parallel to the axis of rotation drain channel, and the movable closure part is provided with a front, also rounded ring bead, which is in the trough of the immovable closure part rests sealingly and has a radially extending recess through which, in the open position of the closure, a connection is established between the interior of the metallurgical vessel and the drainage channel of the immovable closure part.
  • Such a rotary closure thus has no cylindrical sealing surfaces and is also not usable as a slide closure, because its closure parts are pressed against one another by pressure springs, so that when these parts are displaced, their sealing pressure is lost.
  • the object of the invention is to propose a rotary and / or slide closure of the type mentioned, in which radial or diametrical breakthroughs of the movable closure part are avoided.
  • the above object is achieved with a rotary and / or slide closure of the type mentioned at the outset in that the connecting channel is formed by at least one recess which extends on the cylindrical outer surface of the movable closure part.
  • This recess does not represent a diametrically extending opening in the movable closure part. It hardly weakens the strength of the movable closure part. In addition, in the case of maintenance, grinding or re-coating of the recess - after removal of the movable closure part - is easily possible, since the connecting channel formed by the recess is easily accessible on the outside of the movable closure part.
  • the movable closure part is pressed firmly into the immovable closure part by the pressure of the melt acting on the recess with its surface opposite the recess. This improves the tightness of the closure.
  • a metallurgical vessel has a bottom (1) and walls (2).
  • a stator (3) made of refractory ceramic material is installed in the bottom (1) as an immovable closure part. This has a cylindrical inner surface (4) with an axis (5). The length of the stator (3) is much greater than its diameter. It can extend over the entire floor (see. Fig. 1 to 3).
  • the outer contour of the stator (3) is also essentially cylindrical if the wall thickness of the stator (3) is as uniform as possible. However, it can also have a different shape, which is suitable for installation in the floor (1).
  • An inlet opening (7) which is open towards the inside of the vessel (6) is formed on the stator (3). This extends to edge areas over the entire length of the stator (3). So it is designed as a slot-shaped opening. However, it can also be formed by several partial openings, between which there are webs (8) (see FIG. 2) of the wall of the stator (3).
  • a slit-shaped outlet opening (9) is provided on the inner circumference of the stator (3). This extends to the edge areas over the length of the stator (3).
  • the outlet opening (9) is offset from the inlet opening (7) on the stator (3) by less than 180 °.
  • the outlet opening (9) is extended into a slot-shaped outlet channel (10), which is formed by a proboscis shape (11) of the stator (3).
  • the molding (11) can end on the underside (12) of the bottom (1). However, it can also protrude from the underside (12). It is suitable for strip casting. In particular, it can be designed as an immersion nozzle for a mold arranged under the vessel.
  • the free cross section of the inlet opening (7) or the sum of the partial openings is essentially equal to the free cross section of the outlet opening (9).
  • the outflow direction (A) of the melt from the outlet channel (10) is parallel to the main inflow direction (E) of the melt into the inlet opening (7).
  • the outflow direction (A) can also be set at an acute or obtuse angle to the inflow direction (E) by appropriate shaping of the molded part (11) or the outlet channel (12) (cf. FIG. 3).
  • a rotor (13) made of refractory ceramic material is rotatably mounted in the stator (3) as a movable closure part, the axis of rotation of which is concentric with the axis (5) of the cylindrical inner surface (4) of the stator (3).
  • the rotor (13) has a cylindrical outer surface (14) which lies sealingly against the cylindrical inner surface (4).
  • the rotor (13) can be a solid body (Fig. 3). However, it can also be hollow inside (Fig. 1), so that it has a substantially the same wall thickness, which can be equal to the wall thickness of the stator (3).
  • the rotor (13) is a hollow body (cf. FIG. 1), then a gas can be introduced into the melt through its interior.
  • a gas connection is provided on the rotor (13) outside the vessel and gas distribution openings are formed on the circumference of the rotor (13). These can be arranged so that gas only enters the melt in the closed position.
  • melt can be present inside the rotor (13), which is connected to the melt in the interior of the vessel (6). This keeps the rotor (13) at melt temperature.
  • the rotor (13) has at least one recess (15) on its outer circumference. This extends over the entire length of the inlet opening (7) and the outlet opening (9). In the embodiment according to FIGS. 1 to 3, the recess extends between the inlet opening (7) and the outlet opening (9) in the circumferential direction of the rotor (13). In the embodiment according to FIG. 2, several recesses (15) are provided on the rotor (13), between which there are webs (16) which correspond to the webs (8) between the inlet openings (7).
  • the length of the webs (8 or 16) is practically the same as the length of the inlet openings (7) or the recess (16), so that an axial displacement of the rotor (13) in the stator (3) in the direction (V) (see FIG. 2) the webs (16) of the rotor (13) shut off the inlet openings (7) of the stator (3).
  • the recess (15) is designed sickle-shaped in the embodiment of Figure 1. In the open position shown in FIG. 1, it extends between the inlet opening (7) and the outlet opening (9). The recess (15) extends over an angle of less than 180 °. Instead of the sickle shape, the recess (15) can also have a segment shape, for example. (see Figure 3).
  • the recess (15) is designed so that its bottom (17) in the open position is aligned with edges (18 and 19) of the inlet opening (7) and the outlet opening (9).
  • the stator (3) and the rotor (13) are guided through the bottom (1) or two opposite walls (2) on the vessel to the outside.
  • stops (20) are provided to limit the rotary movement of the rotor (13) (cf. FIG. 2).
  • drive means for moving the rotor (13) engage on the outside of the rotor (13).
  • twist lock The functionality of the twist lock described is approximately as follows:
  • the molten metal flows out of the interior of the vessel (6) through the inlet opening (7) and that forming the connecting channel Recess (15) and the outlet opening (9) tangential to the cylindrical inner surface (4) in the outlet channel (10) and get into the following vessel or mold.
  • the flowing melt exerts a pressure on the rotor (13), which presses its cylindrical outer surface (14) tightly against the cylindrical inner surface (4) of the stator (3). This improves the sealing effect between the inner surface (4) and the outer surface (14). Due to the slot-like shape of the outlet channel (10), thin slabs can be cast directly.
  • the position of the rotor (13) can be changed by the drive means acting on the rotor (13) in such a way that the free flow cross section is narrowed, so that the flow rate of the melt flowing per unit of time can be easily regulated.
  • the rotor (13) is turned clockwise or counterclockwise until the inlet opening (7) or the outlet opening (9) are closed by the cylindrical outer surface (14) of the rotor (13). If the rotor (13) is turned counterclockwise to interrupt the melt flow, then the inlet opening (7) is closed before the outlet opening (9) is closed, so that a melt residue located in the recess (15) essentially passes through the outlet opening ( 9) and the outlet channel (10) can flow off. The rotor (13) can then be rotated further so that the outlet opening (9) is also closed by the cylindrical outer surface (14) of the rotor (13).
  • the static pressure of the melt of the interior of the vessel (6) acts such that the sealing effect between the cylindrical inner surface (4) and the cylindrical outer surface (14) is supported.
  • the drive means of the rotor (13) can be designed such that they also axially the rotor (13) move in the direction of the arrow (V) and in the opposite direction. It is then possible to additionally close or open the rotary lock by axially displacing the rotor (13) in the stator (3). In the open position, the cutouts (15) are aligned with the inlet openings (7). In the closed position, the webs (16) lying between the cutouts (15) cover the inlet openings (7).
  • the closure is not provided for an elongated spout, but for a tubular spout.
  • the tubular outlet channel (10) extends radially to the axis (5) about which the cylindrical, movable closure part (13) can be rotated in the direction of the arrow (D) and along which the movable closure part (13) in the direction the arrow (V) is movable.
  • the recess (15) of the movable closure part (13) extends here in a groove-like manner on its outer circumference in its longitudinal direction.
  • the movable closure part (13) which can be actuated on the outside of the vessel, is rotated in the direction of the arrow (D). Residual melt remaining in the recess (15) is in connection with the melt in the interior of the vessel (6) so that it does not freeze.
  • the outlet channel (10) empties.
  • the closure can also be brought out of the open position shown in FIGS. 4 and 5 by pushing the movable closure part (13) to the left in the direction of the arrow (V). This can be used as an additional or as the only closing or opening function.
  • the closure according to Figures 4 and 5 can of course also be used for elongated spouts.
  • the outlet channel 10 is slit-shaped, and the recess 15 is dimensioned in the longitudinal direction so that it extends over the entire length of the outlet channel 10 in the open position.
  • the invention is not limited to a twist lock. It can also be used with a slide closure in which the opening and / or closing of the inlet and / or outlet openings of the stator is effected exclusively by a displacement of the rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Sliding Valves (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP89102654A 1988-03-18 1989-02-16 Dreh- und/oder Schieberverschluss für einen Ausguss eines Metallschmelze enthaltenden Gefässes. Expired - Lifetime EP0332868B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89102654T ATE77279T1 (de) 1988-03-18 1989-02-16 Dreh- und/oder schieberverschluss fuer einen ausguss eines metallschmelze enthaltenden gefaesses.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3809071A DE3809071A1 (de) 1988-03-18 1988-03-18 Dreh- und/oder schieberverschluss fuer einen ausguss eines metallschmelze enthaltenden gefaesses, sowie verschlussteile fuer einen solchen verschluss
DE3809071 1988-03-18

Publications (2)

Publication Number Publication Date
EP0332868A1 EP0332868A1 (de) 1989-09-20
EP0332868B1 true EP0332868B1 (de) 1992-06-17

Family

ID=6350058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102654A Expired - Lifetime EP0332868B1 (de) 1988-03-18 1989-02-16 Dreh- und/oder Schieberverschluss für einen Ausguss eines Metallschmelze enthaltenden Gefässes.

Country Status (13)

Country Link
US (1) US4932570A (ko)
EP (1) EP0332868B1 (ko)
JP (1) JPH0210094A (ko)
KR (1) KR890014933A (ko)
CN (1) CN1028973C (ko)
AT (1) ATE77279T1 (ko)
BR (1) BR8901196A (ko)
CA (1) CA1338004C (ko)
DE (2) DE3809071A1 (ko)
ES (1) ES2034423T3 (ko)
GR (1) GR3005695T3 (ko)
SU (1) SU1695823A3 (ko)
ZA (1) ZA891697B (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH678701A5 (ko) * 1989-03-31 1991-10-31 Stopinc Ag
DE4000656A1 (de) * 1990-01-11 1991-07-18 Didier Werke Ag Schliess- und/oder regelorgan
US5156752A (en) * 1990-01-11 1992-10-20 Didier-Werke Ag Elongated stator and rotor members with elongated slots
GB2251820B (en) * 1991-01-18 1994-12-14 Foseco Int Vessel outlet
DE4319966A1 (de) * 1993-06-17 1994-12-22 Didier Werke Ag Eintauchausguß
US5916471A (en) * 1998-11-10 1999-06-29 North American Refractories Co. Rotary socket taphole assembly
US8424318B2 (en) * 2010-08-30 2013-04-23 General Electric Company Method and apparatus for refrigerant flow rate control
US8459049B2 (en) 2010-08-30 2013-06-11 General Electric Company Method and apparatus for controlling refrigerant flow

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR485821A (fr) * 1917-06-15 1918-02-08 Winkler Perfectionnements aux fours à refondre le métal pour la typographie
GB183241A (en) * 1921-04-19 1922-07-19 William Rowlands Improvements in or relating to teeming devices for ladles adapted to hold molten steel
US3386633A (en) * 1966-04-20 1968-06-04 Nadrich John Closure for a bottom pour metallurgical ladle
DE1583704A1 (de) * 1967-07-06 1970-08-20 Suedwestfalen Ag Stahlwerke Giesspfannenverschluss
CH488632A (fr) * 1968-04-09 1970-04-15 Electroverre Romont Sa Procédé d'extraction du verre hors d'un four pour en former un ruban continu, dispositif pour la mise en oeuvre de ce procédé
US3651998A (en) * 1970-09-23 1972-03-28 Metallurg Exoproducts Corp Nozzle for a pouring ladle
DE2203987A1 (de) * 1972-01-28 1973-08-02 Diener Berthold Vorrichtung zum fuellen der hohlen rahmenschenkel von isolierglasscheiben mit granulat
JPS5367627A (en) * 1976-11-29 1978-06-16 Toshiba Machine Co Ltd Pump main body of hot chamber type die casting machine
LU83734A1 (fr) * 1981-11-04 1983-09-01 Arbed Dispositif de trou de coulee a ouverture variable
US4453654A (en) * 1982-06-16 1984-06-12 Electric Power Research Institute, Inc. Continuous casting nozzle with transverse reinforcement structure
SU1072995A1 (ru) * 1982-08-25 1984-02-15 Алтайский Ордена Ленина Тракторный Завод Им.М.И.Калинина Поворотный конусный огнеупорный затвор
DE3540202C1 (de) * 1985-11-13 1986-11-27 Brown, Boveri & Cie Ag, 6800 Mannheim Zuflußstellglied für eine Kokillenfüllstandsregelung einer Stranggießanlage
DE3805071A1 (de) * 1988-02-18 1989-08-31 Didier Werke Ag Abschluss- und regeleinrichtung fuer das giessen fluessiger metallschmelze

Also Published As

Publication number Publication date
ES2034423T3 (es) 1993-04-01
ZA891697B (en) 1989-11-29
DE58901655D1 (de) 1992-07-23
GR3005695T3 (ko) 1993-06-07
KR890014933A (ko) 1989-10-25
JPH0210094A (ja) 1990-01-12
CN1028973C (zh) 1995-06-21
SU1695823A3 (ru) 1991-11-30
US4932570A (en) 1990-06-12
CN1035968A (zh) 1989-10-04
DE3809071A1 (de) 1989-09-28
ATE77279T1 (de) 1992-07-15
CA1338004C (en) 1996-01-30
BR8901196A (pt) 1989-10-31
DE3809071C2 (ko) 1991-07-04
EP0332868A1 (de) 1989-09-20

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