EP0407712A2 - Unité réfractaire de stator/rotor pour un obturateur de busette de coulée dans un récipient contenant un métal liquide - Google Patents

Unité réfractaire de stator/rotor pour un obturateur de busette de coulée dans un récipient contenant un métal liquide Download PDF

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Publication number
EP0407712A2
EP0407712A2 EP90109647A EP90109647A EP0407712A2 EP 0407712 A2 EP0407712 A2 EP 0407712A2 EP 90109647 A EP90109647 A EP 90109647A EP 90109647 A EP90109647 A EP 90109647A EP 0407712 A2 EP0407712 A2 EP 0407712A2
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
opening
container
unit according
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
EP90109647A
Other languages
German (de)
English (en)
Other versions
EP0407712B1 (fr
EP0407712A3 (en
Inventor
Rolf WALTENSPÜHL
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.)
Stopinc AG
Original Assignee
Stopinc 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 Stopinc AG filed Critical Stopinc AG
Publication of EP0407712A2 publication Critical patent/EP0407712A2/fr
Publication of EP0407712A3 publication Critical patent/EP0407712A3/de
Application granted granted Critical
Publication of EP0407712B1 publication Critical patent/EP0407712B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a refractory stator / rotor unit for a closure in the pouring of a molten metal container, consisting of a tubular stator fastened in the container wall and a rotor guided by the latter within the container, the unit at least one transverse and starting from this one has opening leading from the container, by rotating and / or longitudinally displacing the rotor, the openings can be brought more or less into register and bring about an opening or closing of the closure.
  • Such a closure is preferably suitable for containers in continuous casting plants, from which molten metal is poured into a mold in a controlled manner.
  • the closure is controlled by means of a control process in such a way that a quantity of melt which keeps the mold filling level constant flows from the container into the mold.
  • High demands are placed on the closure serving as an actuator for precisely metered pouring.
  • the present invention is therefore based on the object of developing a refractory stator / rotor unit according to the type described at the outset in such a way that increased operational reliability is achieved in a simple manner.
  • the rotor is formed with two tube pieces which are arranged concentrically to one another and provided with transverse openings and which form the stator sealed inside and outside.
  • the other one that is still functioning permits problem-free termination of the casting or even conditional pouring on.
  • this rotor which is sensitive to bending forces, is reinforced by the double wall and is therefore less prone to breakage.
  • the closure with the other - protected - pipe section is ensured.
  • the latter advantageously has a larger opening than that of the control element and serves primarily as a safety closing element.
  • the opening is preferably seen in the direction of displacement at least three times as long as that of the stator, respectively. of the inner pipe section. Seen radially, the openings of the pipe sections lie approximately on one axis, but can be offset from one another in such a way that when the outer pipe section is closed, it moves into the closed position before the inner one. This prevents residual melt from remaining in the transverse opening of the stator, which would freeze and clog the opening. Further advantageous embodiment variants of arrangements of the openings are explained in the description below.
  • the rotor can be guided out of the container at the top and be displaceable by a drive rod engaging there, or it can also be guided through the stator and driven to be rotatable and / or longitudinally displaceable from below the container.
  • FIG. 1 shows a closure 20 in a partially shown container 10, which has a steel jacket 12 and a refractory lining 14, in which a refractory tubular stator 21 of the closure 20 is embedded in the container spout. At its upper end it is annular and, according to the invention, is in sealing contact with a cylindrical surface of a tube piece 25, 26 of a refractory rotor 22 on its inner or outer cylindrical surface.
  • the transverse openings 27, 24, 28 of the pipe sections 26, 25 or the stator 21 overlap and, together with the central opening 23 in the rotor 22 and stator 21, allow the melt to flow out of the container 10 in a continuous casting mold or the like.
  • the rotor 22 rests on an annular shoulder 29 of the stator 21. It is rotatably connected to a drive rod 18 which engages in its lower part and protects it in the area of the melt by means of its refractory tubular part. Seen in the image plane, the rod 18 is articulated on its driving pin 19 to the rotor 22 and is driven at its upper end by a swivel or rotary motor 15 via an articulated connection 17 and a drive mechanism 16 fastened to the container 10.
  • the amount of melt to be poured is regulated via the openings 26, 24 of the inner tube piece 25 and of the stator 21, which are of the same size, while the openings formed openings 27 of the outer tube section 26 are larger.
  • This pipe section 26 serves as a pure safety closing element, which is used in particular and ensures safe closing when the inner pipe section jams and breaks off in the stator or when leaks occur between the two.
  • the openings 27 designed as recesses are preferably three times as large as the opening 24 of the stator 21 when viewed in the direction of rotation 51. This ensures that the flow cross-section from the fully open to the closed position is formed only by the two openings 24 and 28 and always changes linearly due to the elongated openings, which can also be seen from FIG.
  • the openings 27, 24, 28 of the stator / rotor unit could of course all be of the same size, or that of the inner tube piece could be larger in the opposite sense compared to the other two.
  • FIG 3 a staggered arrangement of the opening 27 of an outer tube piece 26 'to the opening 28 of the inner tube piece 25 is also shown in dash-dot lines as a variant.
  • the opening 27 reaches the closed position in front of the opening 28, as a result of which the residual melt runs out of the transverse stator opening 24.
  • FIG. 4 shows the closure 20 in the closed position, the inner tube piece 25 having a longitudinal groove 37 on its cylindrical outer surface as a variant, which extends from the transverse opening 24 of the stator 21 and extends to the end face of the tube piece 25. It in turn ensures that the residual melt flows out of the stator opening 24, so that this opening 24 is not clogged with frozen melt when the closure is reopened.
  • the longitudinal openings 37 are shown in dash-dotted lines in FIG.
  • the stator / rotor unit 21, 22 according to FIG. 4 also has compared to that of Figure 1, the difference when the rotor 22 rests on the head side 21 'of the stator 21.
  • the closure 30 according to FIG. 5 differs from the closure 20 only in that its rotor 32 is longitudinally displaceable in relation to the fixed tubular stator 31 via a rod 18 'in the vertical direction for opening or closing the closure.
  • the rod 18 ' holds the rotor 30 via a type of ball bearing, which allows deviations in the axis course from the rotor to the stator to be compensated for in the operating state.
  • the outer tube section 36 of the rotor 32 has such a length relative to the inner tube section 35 that its lower edge 36 'is in the fully open position over the openings 34, 38 of the stator 31 or the inner tube section 35 provided for regulated casting.
  • this closure 30 can also be constructed such that the rotor 32 can be displaced in the direction of rotation in addition to the longitudinal adjustment, for example for fine adjustment.
  • On the rod 18 ' would then be additionally provided a rotary connection to the rotor 32.
  • the stator 31 is again tubular and can extend over the length of the container wall, while a pouring tube is connected to this stator sleeve 31 at the bottom.
  • the inner tube pieces 25, 35 of the closures 20, 30 described are cone-shaped, which has a favorable effect on their strength.
  • FIG. 6 shows a closure 40, which in turn has a tubular refractory stator 41 mortared in the container spout and a refractory rotor 42 guided therein.
  • the mushroom-shaped rotor 42 is adjustable below the container 10 by a drive, not shown, in the direction of rotation.
  • the rotor 42 consists of an inner and an outer tube piece 45, 46, which surround the stator 41 in the region of the interior of the vessel in an inner and outer seal.
  • the melt flows in the open position of the closure through the transverse openings 47, 44, 48 of the rotor or stator and through a central flow opening 49 in the rotor 42.
  • the opening 47 of the outer tube section 46 is designed so that you a kind of security locking function is assigned, ie If the actual sealing between the stator 41 and the inner pipe section 45 is no longer present, the pouring process with the outer pipe section 46 can thus be continued or interrupted.
  • the invention is particularly suitable for vertically arranged stator / rotor units, but it could preferably also be used with the closure 40 for horizontal casting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Processing Of Solid Wastes (AREA)
  • Sliding Valves (AREA)
  • Motor Or Generator Frames (AREA)
EP90109647A 1989-07-11 1990-05-21 Unité réfractaire de stator/rotor pour un obturateur de busette de coulée dans un récipient contenant un métal liquide Expired - Lifetime EP0407712B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH593/89 1989-02-20
CH2593/89A CH681435A5 (fr) 1989-07-11 1989-07-11

Publications (3)

Publication Number Publication Date
EP0407712A2 true EP0407712A2 (fr) 1991-01-16
EP0407712A3 EP0407712A3 (en) 1992-05-06
EP0407712B1 EP0407712B1 (fr) 1995-08-16

Family

ID=4237264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109647A Expired - Lifetime EP0407712B1 (fr) 1989-07-11 1990-05-21 Unité réfractaire de stator/rotor pour un obturateur de busette de coulée dans un récipient contenant un métal liquide

Country Status (13)

Country Link
US (1) US5085356A (fr)
EP (1) EP0407712B1 (fr)
JP (1) JPH0352759A (fr)
CN (1) CN1048670A (fr)
AT (1) ATE126460T1 (fr)
BR (1) BR9003263A (fr)
CA (1) CA2020741A1 (fr)
CH (1) CH681435A5 (fr)
DE (1) DE59009527D1 (fr)
ES (1) ES2076255T3 (fr)
GR (1) GR3017827T3 (fr)
IL (1) IL94682A (fr)
ZA (1) ZA904508B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567227A1 (fr) * 1992-03-24 1993-10-27 Crane Limited Moyen obtinateur
FR2765316A1 (fr) * 1997-06-30 1998-12-31 Vesuvius France Sa Four electrique a trou de coulee excentre et procede d'elaboration d'acier dans ce four

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590681A (en) * 1993-07-02 1997-01-07 Frank W. Schaefer, Inc. Valve assembly
AU7321694A (en) * 1993-07-02 1995-01-24 Frank W. Schaefer, Inc. Low pressure casting process and apparatus
CH688712A5 (de) * 1994-07-22 1998-01-30 Stopinc Ag Verschlussorgan am Ausguss eines Metallschmelze enthaltenden Gefässes.
JP4924913B2 (ja) * 2004-10-29 2012-04-25 東海高熱工業株式会社 灰溶融炉の出湯口開閉装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU591889B2 (en) * 1985-03-26 1989-12-21 British Steel Plc Improvements in or relating to outlet valves for metal containing vessels
JPS63264255A (ja) * 1987-04-20 1988-11-01 Tokyo Yogyo Co Ltd 連続鋳造用流量制御装置
JPS63264256A (ja) * 1987-04-20 1988-11-01 Tokyo Yogyo Co Ltd 連続鋳造用流量制御装置
DE3731600A1 (de) * 1987-09-19 1989-04-06 Didier Werke Ag Drehschiebeverschluss fuer ein metallurigsches gefaess sowie rotor und/oder stator fuer einen solchen drehverschluss
CH676811A5 (fr) * 1988-09-29 1991-03-15 Stopinc Ag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567227A1 (fr) * 1992-03-24 1993-10-27 Crane Limited Moyen obtinateur
FR2765316A1 (fr) * 1997-06-30 1998-12-31 Vesuvius France Sa Four electrique a trou de coulee excentre et procede d'elaboration d'acier dans ce four
WO1999001710A1 (fr) * 1997-06-30 1999-01-14 Vesuvius France S.A. Four a arc electrique presentant un trou de coulee excentre, et procede de fabrication d'acier dans ce four

Also Published As

Publication number Publication date
US5085356A (en) 1992-02-04
EP0407712B1 (fr) 1995-08-16
GR3017827T3 (en) 1996-01-31
ES2076255T3 (es) 1995-11-01
CA2020741A1 (fr) 1991-01-12
IL94682A0 (en) 1991-04-15
BR9003263A (pt) 1991-08-27
CH681435A5 (fr) 1993-03-31
ATE126460T1 (de) 1995-09-15
IL94682A (en) 1993-04-04
JPH0352759A (ja) 1991-03-06
EP0407712A3 (en) 1992-05-06
ZA904508B (en) 1991-04-24
CN1048670A (zh) 1991-01-23
DE59009527D1 (de) 1995-09-21

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