EP1046447B1 - Drehschieberplatte - Google Patents
Drehschieberplatte Download PDFInfo
- Publication number
- EP1046447B1 EP1046447B1 EP00104312A EP00104312A EP1046447B1 EP 1046447 B1 EP1046447 B1 EP 1046447B1 EP 00104312 A EP00104312 A EP 00104312A EP 00104312 A EP00104312 A EP 00104312A EP 1046447 B1 EP1046447 B1 EP 1046447B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- valve plate
- gate valve
- sliding gate
- rotary sliding
- 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
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
- 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
- B22D41/26—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 characterised by a rotatively movable plate
-
- 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
- B22D41/28—Plates therefor
Definitions
- the invention relates to a rotary valve plate for metallurgical melting vessels.
- so-called Linear slide known (DE 43 39 316 A1, DE 33 07 193 A1, EP 0 529 108 A1).
- Associated pusher systems are as so-called 2-plate rotary valve (EP 0 838 291 A1) and so-called 3-plate rotary valve (EP 0 356 551 B1) known.
- a plate the so-called rotor plate
- Stator plate against a fixed plate
- the rotor plate has two passage openings for a molten metal and can through corresponding angular displacement relative to the stator plate be placed so that an opening with a corresponding opening of the stator plate is aligned (Flow position) or the latter shuts off (blocking position).
- JP 07306756 A Patent Abstracts of Japan, no. 3, 29.03.1996).
- the Insert has a ring shape.
- the ring shape is important because the slide plate must be drilled to receive the insert. At the same time, the width of the insert ring is limited, there between the insert ring and the peripheral surface of the Slider plate on all sides enough matrix material must be available for static reasons.
- FIG. 1 shows schematically that during the throttling process, at least before reaching the Closure position, the molten metal on the low-wear matrix material of the slide plate flows.
- JP 07308756 A is an embodiment with kidney-shaped insert shown.
- the invention is based on the object to offer a rotary valve plate, which increased wear resistance especially during the throttling process and a secure assembly of the insert in the matrix material allows a sliding plate.
- the invention is based on the consideration, the Flow opening symmetrical, annular insert to replace it with an insert that respects its Geometry is designed so that during the throttle process (So long as molten metal through the passage opening flows) only the more wear-resistant use along the passage opening of the stator plate to be led. In other words: it should be prevented be that during the blocking of the passage opening Molten metal on the matrix material of the slide plate arrives.
- a general broadening of the annular insert is not suitable for this, because the one shown in Figure 1 with A. smallest distance between the peripheral surface of the Insert and the peripheral surface of the slide plate in this case would be so small that no safe confectioning the use in the matrix material of the slide plate more would be possible.
- the invention gives up for use a new geometric requirement in that the Use an associated through hole unbalanced surrounds.
- the insert has a circular peripheral surface on.
- the associated passage opening is however arranged eccentrically.
- the insert can be over the entire height of the rotary valve plate extend. But it is also possible to use an insert that exceeds the height of the Rotary valve plate looks at different outer dimensions has, formed, for example stepped is. In this case, the use may, for example or in a corresponding stage alsilia be used, which is through Holes of different diameters in the rotary valve plate train. It is the rejuvenated Diameter preferably in the flow direction of the molten metal below, thereby ensuring that the insert can not break down.
- a Material based on MgO-C can be used as a material for use.
- This, on oxidation-susceptible material can be inventively advantageous for the following reasons: by the inventive arrangement of the insert in the rotary valve plate is the use of all sides vbn a relative surrounded by a broad section of the matrix material, which largely prevents the ingress of atmospheric oxygen. Characterized in that during the throttle process exclusively Areas of wear-resistant use under the passage opening of the associated stator plate be led, also eliminates an air access on the Connection area to the adjacent matrix material.
- FIG. 2 shows a rotary slide plate 10 made of a base body 12, made of a conventional refractory Material (matrix material) consists.
- matrix material 12 In the matrix material 12 are two inserts 14.1, 14.2 made of a wear-resistant Material arranged, each a circular ring shape and each with an eccentric arranged through opening 16.1, 16.2 formed are.
- the center longitudinal axes M of the through openings 16.1, 16.2 are spaced apart by a Symmetry plane S-S of the rotary valve plate 10.
- the arrangement of the insert 14.1 is such that the Section 14.11 counterclockwise essential wider than the section 14.12 clockwise.
- the inserts 14.1, 14.2 are arranged that a minimum distance A between the peripheral surface of each Insert 14.1, 14.2 and the peripheral surface 10u of the rotary valve plate 10 is respected, which is necessary to to be able to safely pick up the inserts 14.1, 14.2.
- the inserts' 14.1, 14.2 formed with a cylindrical peripheral surface and extend continuously from a main surface 10o the rotary valve plate 10 to the opposite main surface (Bottom).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Check Valves (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Compressor (AREA)
- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
Description
Claims (3)
- Drehschieberplatte (10) aus einem feuerfesten keramischen Matrixmaterial (12), mita) zwei, zwischen zwei Haupt-Oberflächen (10o) verlaufenden Durchgangsöffnungen (16.1, 16.2) für eine Metallschmelze, wobei Mittenlängsachsen (M) der Durchgangsöffnungen (16.1,16.2) entlang einer Symmetrieebene (S-S) der Drehschieberplatte verlaufen undb) mindestens einem, im Matrixmaterial (12) eingelassenen Einsatz (14.1, 14.2) aus einem gegenüber dem Matrixmaterial (12) verschleißfesteren Werkstoff, wobeic) der Einsatz (14.1, 14.2) eine zugehörige Durchgangsöffnung (16.1, 16.2) mindestens im Bereich einer Haupt-Oberfläche (10o) der Drehschieberplatte (10) allseitig umgibt und mit dieser Haupt-Oberfläche (10o) fluchtet,d) und der Einsatz (14.1, 14.2) eine kreisförmige Grundfläche aufweist
dadurch gekennzeichnet, daße) die Durchgangsöffnung (16.1, 16.2) exzentrisch im Einsatz (14.1, 14.2) angeordnet ist, dassf) der Einsatz (14.1, 14.2) auf seinem der Drehrichtung D der Drehschieberplatte (10) abgewandten Abschnitt (14.11, 14.13, 14.14) zwischen dem Rand der Durchgangsöffnung (16.1, 16.2) und seinem korrespondierenden äußeren Rand eine Breite aufweist, die gleich oder größer als der Durchmesser der Durchgangsöffnung (16.1, 16.2) ist, undg) der Einsatz (14.1, 14.2) zur Mitte der Drehschieberplatte hin verschoben ist, so dass der Mindestabstand A des Einsatzes (14.1, 14.2) zur Umfangsfläche der Drehschieberplatte größer ist im Vergleich zu einem Einsatz gleicher Größe, aber mit mittiger Durchgangsöffnung. - Drehschieberplatte nach Anspruch 1, bei der der Einsatz (14.1, 14.2) sich über die gesamte Höhe der Drehschieberplatte erstreckt.
- Drehschieberplatte nach Anspruch 2, bei der der Einsatz über die Höhe der Drehschieberplatte betrachtet unterschiedliche Außenabmessungen aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19917851 | 1999-04-21 | ||
DE19917851A DE19917851C2 (de) | 1999-04-21 | 1999-04-21 | Drehschieberplatte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1046447A1 EP1046447A1 (de) | 2000-10-25 |
EP1046447B1 true EP1046447B1 (de) | 2005-08-17 |
Family
ID=7905213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00104312A Expired - Lifetime EP1046447B1 (de) | 1999-04-21 | 2000-03-02 | Drehschieberplatte |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1046447B1 (de) |
AT (1) | ATE302079T1 (de) |
DE (2) | DE19917851C2 (de) |
ES (1) | ES2246198T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103619513A (zh) * | 2011-07-08 | 2014-03-05 | 里弗雷克特里知识产权两合公司 | 耐火的陶瓷滑板和所属的滑板套件 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108097899A (zh) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | 一种空心钢锭浇铸模具 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307193C2 (de) * | 1983-03-01 | 1986-04-17 | VGT AG, 3432 Großalmerode | Feuerfeste Schieberplatte |
ES2031561T3 (es) * | 1988-08-31 | 1992-12-16 | Metacon Ag | Juego de placas refractarias para cierres de corredera de tres placas. |
DE59103128D1 (de) * | 1991-07-26 | 1994-11-03 | Schladofsky Leopold Dipl Ing F | Schieberverschluss an metallurgischen Gefässen. |
DE4339316C2 (de) * | 1993-04-03 | 1996-11-14 | Schladofsky Leopold Dipl Ing F | Feuerfeste Verschlußplatte für Schieberverschlüsse an metallurgischen Gefäßen wie Gießpfannen sowie an Verteilerrinnen für Metallschmelzen und Verfahren zur Herstellung der Verschlußplatte |
JPH07308756A (ja) * | 1994-05-18 | 1995-11-28 | Tokyo Yogyo Co Ltd | スライディングノズルプレート |
JP3278797B2 (ja) * | 1996-02-27 | 2002-04-30 | 日本鋼管株式会社 | ロータリーノズル用煉瓦体及びロータリーノズル |
-
1999
- 1999-04-21 DE DE19917851A patent/DE19917851C2/de not_active Expired - Lifetime
-
2000
- 2000-03-02 ES ES00104312T patent/ES2246198T3/es not_active Expired - Lifetime
- 2000-03-02 EP EP00104312A patent/EP1046447B1/de not_active Expired - Lifetime
- 2000-03-02 AT AT00104312T patent/ATE302079T1/de not_active IP Right Cessation
- 2000-03-02 DE DE50010948T patent/DE50010948D1/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103619513A (zh) * | 2011-07-08 | 2014-03-05 | 里弗雷克特里知识产权两合公司 | 耐火的陶瓷滑板和所属的滑板套件 |
Also Published As
Publication number | Publication date |
---|---|
EP1046447A1 (de) | 2000-10-25 |
DE19917851A1 (de) | 2000-10-26 |
ATE302079T1 (de) | 2005-09-15 |
DE19917851C2 (de) | 2003-04-10 |
ES2246198T3 (es) | 2006-02-16 |
DE50010948D1 (de) | 2005-09-22 |
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