EP0407712B1 - Feuerfeste Stator/Rotor-Einheit für einen Verschluss im Ausguss eines Metallschmelze enthaltenden Behälters - Google Patents

Feuerfeste Stator/Rotor-Einheit für einen Verschluss im Ausguss eines Metallschmelze enthaltenden Behälters Download PDF

Info

Publication number
EP0407712B1
EP0407712B1 EP90109647A EP90109647A EP0407712B1 EP 0407712 B1 EP0407712 B1 EP 0407712B1 EP 90109647 A EP90109647 A EP 90109647A EP 90109647 A EP90109647 A EP 90109647A EP 0407712 B1 EP0407712 B1 EP 0407712B1
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
opening
unit
tubular member
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
EP90109647A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0407712A3 (en
EP0407712A2 (de
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/de
Publication of EP0407712A3 publication Critical patent/EP0407712A3/de
Application granted granted Critical
Publication of EP0407712B1 publication Critical patent/EP0407712B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 spout of a metal-containing container, consisting of a tubular stator fastened in the container wall and a rotor guided by the latter within the container, the unit being at least one transverse and starting from it has an opening leading out of the container, which can be made more or less coincident by rotating and / or longitudinally displacing the rotor and causing the closure to open or close.
  • 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 fill level constant flows from the container into the mold.
  • the closure serving as an actuator places high demands on precisely metered pouring.
  • a closure of the type described at the beginning shows, inter alia, a stator fastened in the vessel wall and a rotor guided therein within the vessel, the rotor being both rotatable and longitudinally displaceable by a rotor arranged above the vessel Drive is held.
  • Transverse inlet openings in the walls of the stator or rotor and a longitudinal opening extending therefrom in the stator enable the molten metal to be poured off when the openings of these tubular closure parts are covered.
  • relatively small torsional, tensile or other forces act on the rotor or stator, which is made of ceramic material.
  • the closure may no longer be able to be closed and the melt flow may no longer be interrupted.
  • 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. If one piece of pipe becomes jammed, the other one that is still functioning, after breaking the first, allows the pouring to be stopped easily or even conditionally continued pouring. In addition, 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, the inner pipe ends in the closed position. 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 can be displaced 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 illustrated 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 to the rotor 22 on its driving pin 19 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 28, 24 of the inner tube piece 25 and of the stator 21, which are of the same size, while the ones formed as recesses Openings 27 of the outer pipe section 26 are larger.
  • This pipe section 26 serves as a purely safety closing element, which is used in particular and ensures safe closing if the inner pipe section jams and breaks off in the stator or if 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 section 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 before 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 as a variant having a longitudinal groove 37 on its cylindrical outer surface, 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 that 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 32 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 casting 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, sealing inside and outside.
  • 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 seal between the stator 41 and the inner tube 45 is no longer present, the pouring process can thus be continued or interrupted with the outer tube 46.
  • 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)
  • Sliding Valves (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Processing Of Solid Wastes (AREA)
  • Motor Or Generator Frames (AREA)
EP90109647A 1989-07-11 1990-05-21 Feuerfeste Stator/Rotor-Einheit für einen Verschluss im Ausguss eines Metallschmelze enthaltenden Behälters Expired - Lifetime EP0407712B1 (de)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=4237264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109647A Expired - Lifetime EP0407712B1 (de) 1989-07-11 1990-05-21 Feuerfeste Stator/Rotor-Einheit für einen Verschluss im Ausguss eines Metallschmelze enthaltenden Behälters

Country Status (13)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9206394D0 (en) * 1992-03-24 1992-05-06 Crane Ltd A stopper device
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.
FR2765316B1 (fr) * 1997-06-30 1999-11-12 Vesuvius France Sa Four electrique a trou de coulee excentre et procede d'elaboration d'acier dans ce four
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 (da) * 1988-09-29 1991-03-15 Stopinc Ag

Also Published As

Publication number Publication date
DE59009527D1 (de) 1995-09-21
IL94682A0 (en) 1991-04-15
ZA904508B (en) 1991-04-24
CA2020741A1 (en) 1991-01-12
BR9003263A (pt) 1991-08-27
US5085356A (en) 1992-02-04
ATE126460T1 (de) 1995-09-15
CN1048670A (zh) 1991-01-23
CH681435A5 (da) 1993-03-31
EP0407712A3 (en) 1992-05-06
EP0407712A2 (de) 1991-01-16
IL94682A (en) 1993-04-04
GR3017827T3 (en) 1996-01-31
ES2076255T3 (es) 1995-11-01
JPH0352759A (ja) 1991-03-06

Similar Documents

Publication Publication Date Title
EP0308597B1 (de) Drehschiebeverschluss für ein metallurgisches Gefäss sowie Rotor und/oder Stator für einen solchen Drehverschluss
EP2173506B1 (de) Schiebeverschluss für ein metallschmelze enthaltendes gefäss
EP1140669B1 (de) Dosiervorrichtung für schüttgüter
DE2226173A1 (de) Verschließeinrichtung fur Auslaß öffnungen von Gießpfannen
EP0302215B1 (de) Drehverschluss für ein metallurgisches Gefäss sowie Rotor bzw. Stator für einen solchen Drehverschluss
EP0290523B2 (de) Auslass- und durchflussregel-vorrichtung für metallurgische gefässe und giessverfahren
EP0407712B1 (de) Feuerfeste Stator/Rotor-Einheit für einen Verschluss im Ausguss eines Metallschmelze enthaltenden Behälters
WO2000006325A2 (de) Schiebeverschluss für einen metallschmelze enthaltenden behälter
EP0279409A1 (de) Füllventil
CH671714A5 (da)
DE2043588A1 (de) Drehschieberverschluß an Behältern für flüssige Schmelze
DE3913750C1 (da)
EP0392168B1 (de) Schliess- und/oder Regelorgan für ein metallurgisches Gefäss
EP0332868B1 (de) Dreh- und/oder Schieberverschluss für einen Ausguss eines Metallschmelze enthaltenden Gefässes.
DE4304621C2 (de) Ausgußverschluß
DE3926249A1 (de) Feuerfeste stator/rotor-einheit fuer einen verschluss am ausguss eines metallschmelze enthaltenden behaelters
DE1948440C3 (de) Schleuse zum Einbringen von Schüttgütern in gasdicht abgeschlossene Räume, insbesondere von Legierungselementen in Stahlentgasungsgefäße
EP0603480A2 (de) Schiebeverschluss insbesondere für ein Metallschmelze enthaltendes Konvertergefäss
DE3843865C1 (da)
DE2737691A1 (de) Schiebeverschluss
WO1989004445A1 (en) System for conveying bulk materials
CH688712A5 (de) Verschlussorgan am Ausguss eines Metallschmelze enthaltenden Gefässes.
DE3744883C2 (en) Rotary slide valve
DE8810027U1 (de) Vorrichtung zum Füllen von offenen Behältern
EP0001035A1 (de) Mischer, insbesondere Roheisenmischer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900608

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR GB GR IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE ES FR GB GR IT SE

17Q First examination report despatched

Effective date: 19940117

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB GR IT SE

REF Corresponds to:

Ref document number: 126460

Country of ref document: AT

Date of ref document: 19950915

Kind code of ref document: T

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950821

REF Corresponds to:

Ref document number: 59009527

Country of ref document: DE

Date of ref document: 19950921

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2076255

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3017827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19960521

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970410

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970411

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970423

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19970430

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970510

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19970519

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980521

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980522

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980521

EUG Se: european patent has lapsed

Ref document number: 90109647.9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990302

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050521