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EP1955794B1 - Repartiteur de coulee avec dalle d'impact evitant les eclaboussures et les toubillons - Google Patents

Repartiteur de coulee avec dalle d'impact evitant les eclaboussures et les toubillons Download PDF

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Publication number
EP1955794B1
EP1955794B1 EP20080002091 EP08002091A EP1955794B1 EP 1955794 B1 EP1955794 B1 EP 1955794B1 EP 20080002091 EP20080002091 EP 20080002091 EP 08002091 A EP08002091 A EP 08002091A EP 1955794 B1 EP1955794 B1 EP 1955794B1
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EP
European Patent Office
Prior art keywords
distribution vessel
floor
steel
boundary walls
vessel 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.)
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Application number
EP20080002091
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German (de)
English (en)
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EP1955794A1 (fr
Inventor
Berthold Stilkerieg
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Stilkerieg Berthold
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Individual
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Publication date
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Priority claimed from DE102007060140A external-priority patent/DE102007060140A1/de
Application filed by Individual filed Critical Individual
Publication of EP1955794A1 publication Critical patent/EP1955794A1/fr
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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
    • B22D41/003—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with impact pads

Definitions

  • the invention relates to a distribution vessel with an arranged on the distributor vessel bottom mounting body to prevent spray and Verwirbelungserscheinonne in the sprue of the distribution vessel referred to as tundish, the installation body is disposed on the distributor vessel bottom in the impact region of the steel jet, consists of a body bottom and boundary walls, wherein the boundary walls serving as baffles for the liquid steel serving obliquely or arcuately shaped and wherein the body bottom and top edge are spritzvermeidend spaced and the upper edge is dimensioned opening cross section accordingly.
  • Such distribution containers with such an installation body are from the DE 26 43 009 A1 basically known.
  • the installation body referred to here as an insert body is arranged in the impact area so that it is intended to prevent the spraying away of the liquid steel.
  • baffle plate is provided with a kind of rust, which is made of refractory material and consists of honeycomb-like juxtaposed recesses, which are separated by continuous webs. These honeycomb-like recesses take up the falling jet of steel and at the very first moment will probably do something to ensure that liquid steel parts do not splash away.
  • the lid With the impact of the steel jet, the lid should be partially destroyed, so then upwardly splashing steel parts are retained by the rest of the lid.
  • the arranged inside the container positioning means should simultaneously form a kind of guide element, which divide the incident pouring stream and / or redirect.
  • the disadvantage here is that, of course, resulting from the collapse of the liquid steel splashes can be retained by the rest of the lid only insufficient, which is probably why an overbreadth upper edge is provided.
  • This inwardly inclined edge is so unfavorably shaped that the overflowing steel can easily be struck by the inflowing liquid steel, which then leads to harmful splashes.
  • a wall with hole inserts is provided in order to equalize and calm down the steel bath and the outflowing steel flow in this way.
  • the disadvantage is that In this type of training a uniform flow in all directions can not be achieved and the backlog through the wall with the hole inserts ultimately an additional discomfort is achieved, which is unfavorable.
  • a metallurgical flapper is known that is placed in a tundish. It is bordered at least for the most part by a vertical boundary wall, which has one or more overhangs at the upper part, the lower surface of which curves or tilts, ie from the center the protruding edge becomes ever thicker.
  • a boundary wall slopes outwards and overhangs.
  • one of the boundary walls has a lower height than the other. Discharge of the liquid steel thus always leads to disadvantageous turbulences, because the liquid steel almost only passes over at the low boundary wall at high speed.
  • the DE 10 2006 005 725 B3 teaches a so-called Eingusstopf, so surrounded by boundary walls baffle plate. In the boundary walls on one side a transition into a balcony-like pan opening is provided, through which the liquid steel is to flow. The outer surface of the boundary wall is only slightly bevelled so that it can not counteract turbulence.
  • the liquid steel flows almost completely over the balcony-like tub, whereby forcibly adverse turbulence occur.
  • the EP 1 232 814 A1 shows a so-called. Eingustopf, in which the outer wall is initially slightly bevelled, but then springs back to the ground, so again turbulence of the outflowing liquid steel will occur again.
  • the soil is slightly wavy, probably to reduce the clogging of the liquid steel as it flows into the casserole. Again, it is clearly only about the reduction of Stahlspritzem, not to the production of laminar streams.
  • the EP 0 463 257 A1 shows and describes a distributor head, here the spraying away of steel drops is prevented by the fact that the distribution vessel is equipped with a lid or large overhanging edge.
  • the invention is therefore based on the object to provide an installation body for distribution vessels, in which the jet of liquid steel can be collected specifically spray-free and streamlined and turbulence avoidance can be forwarded to any or all directions.
  • the inflowing liquid steel material is very quickly removed from the impact area and distributed evenly in the distribution vessel.
  • the boundary walls ensure on the inside that the liquid steel is already deliberately guided in the body so that the inflowing steel jet is not hindered.
  • This steel jet or the liquid material is then guided on the outer wall or the outer slope so that a linear flow without any vortex formation arises and is maintained until the material has reached the distributor vessel bottom and then can flow further in the direction of the vessel outlet.
  • the liquid steel is thus routed so that it laminar in the body largely laminar, but then in the transition region on the outer slope secured laminar and can flow with peace of mind. It can not come to harmful leaching of the distributor vessel bottom.
  • the boundary walls are formed both on the inside and on the outside of the upper edge to the body bottom obliquely outwards.
  • an advantageous targeted guidance of the liquid steel which as such then completely calm over the drainage slope can leave the mounting body to then evenly and completely calm to move towards spout.
  • the upper edge which is expedient for manufacturing reasons, forces the steel into a change in direction and that of the upstream path in a then outgoing path.
  • the invention provides that the upper edge is rounded off resulting in the linear ablation of the steel.
  • the invention further provides that the upper edge in the thickness or thickness reduced and reaching into the opening cross-section of the entire mounting body and him the dimensions of 400 x 400 mm resulting is formed. While the body bottom is dimensioned with approximately 600 mm, so it comes over the upper edge to a significant reduction of O réellesqueriteses, but this is compensated again, if this "weak" edge melts away during operation or is taken away by the liquid steel. Although it remains due to the inclination of the boundary walls then still at a smaller opening cross-section, which in principle disadvantageous diversion of the steel stream is but significantly reduced.
  • the boundary walls have a height of 150-500 mm.
  • Such sized boundary walls or baffles which are inclined inwards, result in an installation body, on whose oblique outer walls of the steel can flow evenly.
  • the height is sufficient to safely redirect the steel material flowing into the installation body and to remove it uniformly linearly, as described above.
  • the special design of the oblique and correspondingly high boundary walls makes advantageous noticeable.
  • the entire installation body can gradually dissolve more or less completely during the filling of the liquid steel, whereby this dissolution can also be carried out selectively, namely by the boundary walls and the body floor made of refractory concrete form a structural unit, wherein the refractory concrete is made of a material which is a disintegration of the installation body when exposed to heat in a given time causes.
  • the dissolution of the concrete is fixed at a certain point in time or time, so that sufficient care is taken for the antispring effect and the prevention of eddies.
  • a permanently refractory material which always has the great advantage of preventing washing out of the distributor vessel bottom or of the lateral wall, depending on where the liquid steel jet impinges.
  • the assembly rests on a leveling bulkhead on the distributor vessel bottom and is fixed by an injection molding compound, the so on the outer slope is formed that the steel can flow out.
  • the actual installation body thus remains bordered by the hardening residual steel on the distributor vessel bottom and can thus be removed together with the bear from the distribution vessel, in order to then be replaced by a new structural unit. It is advantageous that then you can still recognize the removed bear, whether the unit as such has fulfilled its task, namely whether it is still visible according to or has completely dissolved.
  • the aerodynamically molded injection molding compound will dissolve accordingly, and together with the outer slope just for the favorable outflow of the liquid steel care.
  • the body bottom has a certain surface, in particular with attached cams or the like.
  • the correspondingly coated body floor then ensures that the impinging steel jet is passed on evenly on the body floor, without causing splashing.
  • the ceramic sponge material will certainly be washed off after a certain time, but a sufficiently thick coating is sufficient to avoid the occurrence of splashes at the appropriate time.
  • the ceramic sponge material is coarse-pored, so the incident liquid metal also "holds" accordingly.
  • Another way of forming the body bottom is to have it having a surface occupied by a plurality of upstanding channels resulting in a certain spaced circular cam.
  • the impinging jet of steel is caught and discharged through the channels, so that there can be no significant disturbance.
  • the round cams decompose under certain circumstances after some time, but this is harmless, because the remaining remains sufficient to gently absorb and dissipate the impinging steel beam.
  • a further advantageous effect is achieved, namely the Verwirbelungsverhi appris when flowing the steel jet. Rather, the entire liquid steel discharged evenly and in a largely laminar flow, which is then optimally optimized when draining over the outer slope.
  • polygonal cams can also be used, the round cams already having advantages from the point of view of production, and also further by the fact that they keep correspondingly well-sized channels between them. Further, it is provided that the channels between the round cams are formed to the edge of the body floor wide spread, so that thus the flow of the liquid steel is facilitated.
  • the round cams have a curved or pointed head, have a diameter of 20-35 mm and a height of 2-100 mm and are arranged at a distance of 30 mm from each other.
  • a type of brush is given, on which the steel beam impinges, in order then between these brush hairs, ie the round cams evenly distributed, without causing splashing.
  • the round cams with the domed or tapered heads further advantageous not give the liquid steel the opportunity to rebound again.
  • the round cams themselves are dimensioned so that, as mentioned earlier, they provide sufficient service life.
  • the round cams mentioned here are specified on the inside body floor at the appropriate height.
  • the channels between the round cams are expediently designed to widen the edge of the body bottom.
  • the invention is characterized in particular by the fact that an installation body for distribution vessels and similar vessels is provided in which not only avoidance of the spraying effect or avoidance of spraying is achieved, but above all a uniform turbulence-inducing flow-off of the liquid steel is possible is. Any kind of turbulence is suppressed, because the impinging or incoming liquid steel is discharged evenly, in such a way that it can catch any possible spatter even when flowing up again and then when draining on the sloping boundary walls.
  • the surface of the body bottom is specially designed.
  • the boundary walls are shaped so that the steel is always guided evenly, so that it comes only to laminar flows, in particular by the obliquely outwardly extending outer slope.
  • a further advantage is that these mounting body are used and fixed in the distribution vessel at the optimal location In order to fulfill its function in two respects fully, so that both in terms of security (splash) as well as equalization of the entire process sequence is reached an optimum.
  • FIG. 1 shows an installation body 1 in a perspective view.
  • This mounting body 1 is as well FIG. 3 can be removed, arranged with its support surface 10 in a distribution vessel 2 with sprue 3.
  • mounting body 1 is provided in addition to the body bottom 40 around a boundary wall 24. Together they form a structural unit 30, which can be arranged as such on the distributor vessel bottom 4.
  • assembly 30 extend the boundary walls 24 obliquely to the center 11 out.
  • These boundary walls 24 have a slope of 45 ° to 50 °, so that this results in an advantageous oblique outer slope 33, the like FIG. 3 shows, has a particularly favorable effect to drain the running liquid steel 9 safely and quietly.
  • the angle 37 and 38 it is shown that the inner slope is corresponding to the center, while the outer slope, the uniform discharge of the liquid steel 9 is formed very favoring.
  • the container opening 23 serving for filling or introducing the steel jet 8 is dimensioned such that the high-volume liquid steel 9 can be removed via the bevels of the boundary walls 24 at the same time in the edge region 22.
  • the inclination of the boundary walls of the opening cross-section of the container opening 23 is at least 400 x 400 mm, which is sufficient to safely introduce a conventional steel beam 8. Should this arrive or impinge in the edge region 22, the effluent liquid steel 9 on the opposite side 21 can still be removed safely and almost laminar.
  • FIG. 2 The same mounting body 1 or the same structural unit 30 is in FIG. 2 shown in section.
  • the drainage slope 33 leads down to the distributor vessel bottom 4.
  • the obliquely extending boundary walls 24 particularly favor the laminar outflow of the liquid steel 9.
  • the Figures 2a, 2b and 2c show various embodiments of the upper edge 29 of the boundary wall 24, where once a vertical end wall 36, an inclined end wall 36 'and a rounded end wall 36 "is reproduced.
  • FIG. 3 shows a section through a distributor vessel 2, wherein the mounting body 1 is arranged on the distributor vessel bottom 4.
  • the liquid steel 9 in the form of the steel jet 8 initially impinges on the body bottom 40, to then be guided to the edge 41 of the body bottom 40 and deflected there, namely up to the upper edge 29 at the inclined inner sides 42 .
  • the obliquely extending in the direction of the body 27 inner boundary walls 24 are provided at the upper edge 29 with a rounding 31, as well as in Figure 2c shown so to exclude even the slightest obstruction of the liquid steel 9.
  • This is further supported by the fact that in the corners 26 moldings 28 are arranged, which ensure a uniform redirecting of the liquid steel 9 in the direction of the body 27 inside.
  • These shaped bodies 28 may consist of different refractory material.
  • the mounting body 1 is arranged with its boundary walls 24 and the body bottom 40 on a leveling pad 5 on the distributor vessel bottom 4.
  • this assembly 30 is set so that it maintains its position until the end of the Einhellaise Spotify the liquid steel 9.
  • this injection molding compound 6 is designed as a run-up slope and the outer slope 33 applied in addition, whereby the liquid steel 9 can be specifically derived over the outer slope 33 away.
  • An advantageous laminar flow is given as a whole, wherein the outer slope 33 and the injection molding compound 6 pass into one another appropriately.
  • the body bottom 40 may be provided with a coating 45.
  • This coating 45 is expediently made of a ceramic sponge material, which is applied correspondingly thick and coarse-pored. Recognizable is after FIG. 3 above all, the molded body 28 used in the corner, which has already been mentioned earlier. 42, the inside of the boundary wall 24 and 43 denotes the outside.
  • FIG. 4 shows an embodiment in which the surface 13 of the mounting body 1, ie that of the body bottom 40 is particularly formed.
  • On its surface 13 is a plurality of round cams 15, 16, 17, which constitute a structural unit with the body bottom 40 and the boundary walls 24.
  • the approximately in the middle 11 impinging, not shown steel beam can be evenly distributed between these round cams 15, 16, 17 and over here not shown channels 18, 19 flow out.
  • the heads 20 of the round cams 15, 16, 17 are rounded, slightly or more bevelled. It is also conceivable that the heads 20 of a continuous row of round cams 15 are designed to selectively direct the impinging steel jet into the channels 18, 19, ie they all have the same slope. It is not shown that the surface 13 can also be roughened up to the edge 12 or only in the central region.
  • the respective mounting body 1 Due to the special design of the mounting body 1, it is now possible to arrange the respective mounting body 1 there exactly in the distribution vessel 2, where a uniform distribution in the entire distribution vessel 2 is most optimally possible.
  • the installation body 1 In the case of elongate distribution vessels 2, it is expedient also to use rectangular installation bodies 1; in the case of square or nearly square distribution vessels, however, other forms of the installation body 1 can also be selected, for example also circular ones. It is important that the incident in the body 1 steel beam 8, so the liquid steel 9 to be admitted without splashing and collected, and then selectively redirected within the mounting body 1 and forwarded to the higher edge 29.
  • An example rectangular mounting body 1 has on three sides boundary walls 24 with an outer slope 33, while the support wall 50 is attached perpendicular to the wall of the distribution vessel 1. Such an embodiment is not shown. If the installation body is to be leaned against or connected to a distribution vessel wall, the external slope must be omitted on this side. It is then only available on the free pages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (11)

  1. Récipient distributeur avec un corps encastrable (1) disposé sur le fond de récipient distributeur (4) afin d'éviter les effets de giclage et de tourbillonnement dans la zone de versement (3) du récipient distributeur (2) désigné « panier de coulée », étant donné que le corps encastrable (1) est disposé sur le fond du récipient distributeur (4) dans la zone d'impact du jet d'acier (8), étant donné que le corps encastrable (1) est composé d'un fond de corps (40) et de parois de délimitation (24), étant donné que les parois de délimitation (24), qui servent de parois directrices pour l'acier liquide (9), sont formées obliquement ou en forme d'arc, étant donné que les parois de délimitation (24) sont formées aussi bien sur la face intérieure que sur la face extérieure en biais vers l'extérieur partant du bord supérieur jusqu'au fond de corps, étant donné que les parois de délimitation (24) ont une hauteur de 150-500 mm et étant donné que la section d'ouverture (23) des corps encastrables (1) est au moins 400x400 mm,
    caractérisé en ce que
    les parois de délimitation (24) présentent une inclinaison extérieure (33) qui court en biais jusqu'au fond du récipient distributeur (4), et étant donné que les parois de délimitation (24) servant de parois directrices présentent une inclinaison de 45° à 50° vers le fond du récipient distributeur (4).
  2. Récipient distributeur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le bord supérieur (29) est arrondi de manière à permettre l'écoulement linéaire de l'acier (9).
  3. Récipient distributeur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le bord supérieur (29) a une épaisseur réduite.
  4. Récipient distributeur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le corps encastrable (1) rectangulaire présente des coins intérieurs (26) qui sont remplis partiellement par un corps de moule (28) circonférentiel.
  5. Récipient distributeur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les parois de délimitation (24) et le fond de corps (40), fabriqués en béton réfractaire, forment une unité modulaire (30), étant donné que le béton réfractaire est composé d'un matériau qui entraîne la décomposition du corps encastrable (1) en cas d'exposition à la chaleur pendant un temps prédéfini.
  6. Récipient distributeur selon la revendication 5,
    caractérisé en ce que
    l'unité modulaire (30) est érigée sur une fondation de compensation (5) sur le fond du récipient distributeur (4) et y est fixée à l'aide d'une matière à mouler par injection (6) qui est formée sur l'inclinaison extérieure (33) de manière à ce que l'acier (9) puisse s'écouler.
  7. Récipient distributeur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le fond de corps (40) présente un revêtement (45) composé d'un matériau en éponge céramique, ou en ce que le fond de corps (40) est fabriqué entièrement en un matériau en éponge céramique ou en ce que l'unité modulaire (30) entière est en un matériau en éponge céramique.
  8. Récipient distributeur selon la revendication 7,
    caractérisé en ce que
    le matériau en éponge céramique est macroporeux.
  9. Récipient distributeur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le fond de corps (40) présente une surface (13) qui est occupée par une pluralité de cames rondes (15, 16, 17) verticales disposées à une certaine distance l'une de l'autre et formant des canaux (18, 19).
  10. Récipient distributeur selon la revendication 9,
    caractérisé en ce que
    les cames rondes (15, 16, 17) présentent une tête (20) arquée ou pointue, ont un diamètre de 20 - 35 mm et une hauteur de 2-100 mm et sont disposées à une distance de 30 mm l'une de l'autre.
  11. Récipient distributeur selon la revendication 10,
    caractérisé en ce que
    les canaux (18, 19) entre les cames rondes (15, 16, 17) sont formés de manière à s'élargir vers le bord (12) du fond de corps (40).
EP20080002091 2007-02-08 2008-02-05 Repartiteur de coulee avec dalle d'impact evitant les eclaboussures et les toubillons Active EP1955794B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007007014 2007-02-08
DE102007060140A DE102007060140A1 (de) 2007-02-08 2007-12-13 Einbaukörper für Verteilergefäße

Publications (2)

Publication Number Publication Date
EP1955794A1 EP1955794A1 (fr) 2008-08-13
EP1955794B1 true EP1955794B1 (fr) 2012-02-01

Family

ID=39332184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080002091 Active EP1955794B1 (fr) 2007-02-08 2008-02-05 Repartiteur de coulee avec dalle d'impact evitant les eclaboussures et les toubillons

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EP (1) EP1955794B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX339761B (es) * 2011-06-14 2016-06-07 Vesuvius Crucible Co Almohadilla de impacto.
CN218252879U (zh) * 2022-09-29 2023-01-10 维苏威高级陶瓷(中国)有限公司 中间包稳流器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643009A1 (de) 1976-09-24 1978-03-30 Odermath Gmbh Heinrich Einlegekoerper zum schutz der aufprallflaeche eines giesstrahls in einem metallurgischen gefaess
US5131635A (en) 1990-05-29 1992-07-21 Magneco/Metrel, Inc. Impact pad with rising flow surface
US5072916A (en) 1990-05-29 1991-12-17 Magneco/Metrel, Inc. Tundish impact pad
US5169591A (en) 1992-02-07 1992-12-08 Bethlehem Steel Corporation Impact pad for a continuous caster tundish
US5518153A (en) 1994-11-09 1996-05-21 Foseco International Limited Tundish impact pad
FR2756761B1 (fr) 1996-12-11 1999-01-08 Ugine Savoie Sa Reservoir d'alimentation destine a retenir un metal fondu et notamment un acier
ES1048253Y (es) 2001-02-14 2002-05-01 Refractaria S A Bloque de impacto para colada continua.
ZA200206261B (en) 2002-03-28 2003-04-07 Foseco Int Metallurgical impact pad.
DE202005004118U1 (de) 2005-03-11 2005-07-21 Weerulin Gmbh Einlegekörper für Zwischenbehälter
DE102006005724B3 (de) 2006-02-08 2007-05-31 Purmetall Gmbh & Co. Kg Eingusstopf zur Aufnahme einer aus einer Giesspfanne ausfliessenden metallischen Schmelze

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