WO2010094259A1 - Dispositif antitourbillon dans des récipients métallurgiques - Google Patents

Dispositif antitourbillon dans des récipients métallurgiques Download PDF

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Publication number
WO2010094259A1
WO2010094259A1 PCT/DE2010/000123 DE2010000123W WO2010094259A1 WO 2010094259 A1 WO2010094259 A1 WO 2010094259A1 DE 2010000123 W DE2010000123 W DE 2010000123W WO 2010094259 A1 WO2010094259 A1 WO 2010094259A1
Authority
WO
WIPO (PCT)
Prior art keywords
vortex
stone
brake
fixing part
fixing
Prior art date
Application number
PCT/DE2010/000123
Other languages
German (de)
English (en)
Inventor
Berthold Stilkerieg
Original Assignee
Berthold Stilkerieg
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 Berthold Stilkerieg filed Critical Berthold Stilkerieg
Publication of WO2010094259A1 publication Critical patent/WO2010094259A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/118—Refining the metal by circulating the metal under, over or around weirs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
    • B22D43/001—Retaining slag during pouring molten metal
    • 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1545—Equipment for removing or retaining slag
    • F27D3/159—Equipment for removing or retaining slag for retaining slag during the pouring of the metal or retaining metal during the pouring of the slag

Definitions

  • the invention relates to a device for avoiding the slag with retracting vortexes when emptying vessels containing metal, in particular molten steel, wherein the bottom outlet of a pan or a distributor or a similar metallurgical vessel consisting of a brake part and fixing Vortex or more than the outflow of the Steel melt arising swirl associated with influencing.
  • the invention is therefore based on the object to provide an easy-to-install, usable even with stoppers distributors and pans Strudelbremse.
  • the Vortex stone has a circular segment-like fixing part, whose inner diameter is formed corresponding to that of the bottom outlet, and a standing on the fixing part brake part which is equipped with a knife edge.
  • vortex stone is deliberately placed tightly and accurately placed on the bottom outlet and can be fully effective after fixing the fixing part at the bottom outlet with its brake part by it with its brake part, which has a knife edge at the front edge, so in the Strudel "cuts in” that it is disturbed and rendered harmless, it is advantageous in particular that the knife edge is located exactly in the area and is positioned so that it acts against the vortex and this makes quickly harmless, so that it has its absorbing effect can not develop at all.
  • the fixing part is designed with three or more fixing parts forming a full circle.
  • Such a feature gives the possibility, especially for larger vessels with multiple Bodenaustuln also prevent mutual interference of the floor outlets, because by the all around fixed parts with their whirlpools may be made harmless immediately and quickly, ie without being able to influence the neighborhood. It has been found in experiments that such an arrangement of multiple Vortexstones particularly safe excludes the vortex formation, without requiring a much greater effort would be necessary.
  • the individual Vortex stones are the same design and just need to be arranged around the respective bottom outlet around and fixed above all to be glued.
  • the braking part of the Vortex stone is placed on the same time serving as a fixing part perforated stone of a bottom outlet and connected to it.
  • fixing and hole stone as such have the same diameter, in which case, however, the brake member must be made separately and then also separately mounted, which is somewhat more complicated than in the Vortex stone consisting of brake and fixing.
  • the brake part of the Vortex stone is glued to the hole stone, to usual adhesive or mortar can be used to ensure that the vortex stone or its brake part with sufficient time the hole stone remains connected, so as to prevent the formation of swirls until the last safe.
  • the annular fixing part is placed with the associated brake member on the perforated stone of a bottom outlet, preferably adhered thereto, because thereby always the same position of the brake member can be achieved with the knife edge. It is simply determined by the self-annular fixing parts, regardless of whether one or four or more fixing parts are used to completely cover a hole stone. Fixing part and brake member can be glued together used, but it is particularly advantageous if, as provided according to the invention, the fixing part and the brake member are made as a component forming the vortex stone.
  • the embodiments described above are characterized in particular by the fact that they can be easily installed under certain operating conditions. This simplification of the installation is in particular also given when the Vortex stone is arranged and fixed with brake part and fixing part within a tubular starter kit.
  • Such starter kits are used at the beginning of the casting process as protection over the bottom outlet at distributors, which have no plug and work, for example with slide lock or freewheeling, so that no impurities can fall into the bottom outlet at the moment of leakage.
  • the tube or the starter kit acts like a dam and only dissolves when the bath level has reached approx. 250 mm. Then the steel can get directly to the bottom outlet, whereby it is influenced by the arranged within this tube or starter kit Vortex parts so that a vortex does not arise.
  • Vortex stone Another possibility of constructing a Vortex stone is that in which the brake part is equipped with a mounting part serving as a fixing part, which is designed to correspond with the opening in an adapter plate, wherein the adapter plate is connected to the tundish floor and / or the perforated brick.
  • a mounting part serving as a fixing part
  • the adapter plate is connected to the tundish floor and / or the perforated brick.
  • the adapter plate can be easily and selectively changed the dimensions of the entire Vortex stone in the vertical direction.
  • the adapter plate will extend the brake part "higher" over the tundish floor, so that consideration can also be given to the height of the entire vessel or to other peculiarities of the vessel in question on top of the brick, depending on how this proves to be appropriate in the particular application.
  • the invention provides that the adapter plate is equipped with a cutting edge, which is designed to extend into the vortex. Then, if the brake member is placed on top of the adapter plate, so you have a virtually continuous cutting / knife edge that can quickly and safely be ineffective the vortex, if the liquid iron or the melt filled into the respective vessel or through the bottom outlets thereof runs out.
  • Such a vortex stone is particularly advantageous if the braking part of the vortex stone has a knife edge which is designed and arranged corresponding to the cutting edge. This means that the edge over the entire height is the same and is also the same sharp, so that can be effectively taken against the vortex effect.
  • One way to safely position the Vortex stone in the area of the bottom outlet is to equip the brake part or the fixing part with one or more molded coupling pin, the tundish floor with a is equipped corresponding recess.
  • the brake member or fixing member may have a corresponding blind bore into which the upper end coupling pin is introduced, before then set the entire component on the insertion of the other end of the coupling pin in the recess in the tundish floor and then to glue.
  • the Vortex stone is not placed on the hole stone, but rather beside it, so as to still specify the position that ensures the dissolution of the vortex.
  • such an arrangement of Vortex stone with brake part and fixing part can represent a particularly stable arrangement and thus provide the desired results as well as the embodiment of the Vortex stone described earlier.
  • the coupling pin is wedge-shaped, cylindrical, hollow cylindrical or formed with a support ring.
  • support ring means that the coupling pin is inserted into a larger recess to then insert mortar or the like from above and thus set the coupling pin in the tundish floor or in the associated mortar. This is also possible if corresponding additional parts are used during the application of the mortar.
  • the circuit forming a circle arranged brake parts and fixing parts in the direction of vortex offset from each other, that is, to arrange far enough into the vortex.
  • This training ensures that each brake member engages in a different region of the swirl 5 and this makes it even more harmless, as if virtually a brake member after the other engages in the same region of the swirl and trying to make harmless.
  • the invention provides that the brake member is formed as a rectangular plate with respect to height and width, wherein the reaching into the vortex side by resetting the trailing edge at an angle of 15 -.
  • knife edge 15 45 °, preferably 30 ° relative to the leading leading edge of the knife edge is formed forming.
  • knife edge is expressed that the braking part or the vortex stone in total should intervene in the vortex consisting of liquid metal in such a way that the vortex is very quickly ineffective. This knife edge, which is important for this effect,
  • the invention is characterized in that a device is created or a whirl brake is provided, which is easy to assemble and accurate to assemble, so that with the necessary security of the vortex is also quickly and safely combated, the leakage of liquid metal from corresponding metallurgical vessels with bordering on safety
  • Figure 1 is a discharge vessel with subordinate distributor
  • Figure 2 is an enlarged view of this outlet vessel in
  • FIG. 3 shows a unit of three vortex stones in a ring-shaped arrangement
  • FIG. 4 is a perspective view of an adapter plate
  • FIG. 5 shows an adapter plate with associated brake part
  • FIG. 6 shows a brake part seen from above with knife edge
  • Figure 7 is a plan view of a tundish floor with attached
  • Fixing part and associated brake part on the hole stone and Figure 8 is a side view of Vortexsteines with a
  • Coupling pin as a connecting part.
  • FIG. 1 shows a discharge vessel 1 with a bottom outlet 3 and the filled liquid steel or molten steel 2.
  • a vortex stone 10 can be seen, which ensures that the outlet of the molten steel 2, the slag layer 6 is not affected, d. H . the vortex 12 produced here is influenced so that the slag layer 6 is not sucked in and is sucked out of the bottom outlet 3 into the melting tube 4.
  • the subsequent distributor 5 or the corresponding vessel has corresponding fittings or Vortex stones 10, 10 ', 10 "which are arranged in the region of the bottom outlets 8, 8', 9 so that the molten steel 7 in the distributor 5 has no influence
  • a steel whirlpool or vortex 12 is shown, with the associated vortex stone 10 "being arranged so that it projects with its knife edge 11 into the vortex 12 and the vortex 12 therewith safely influenced and brought to collapse.
  • This influencing has the effect that the slag layer 6 'slowly sinks with the removal of the liquid steel or molten steel 7, but in such a way that the eddy 12 leaves this entire slag layer 6' uninfluenced.
  • FIG. 2 shows an outlet vessel 1 in an enlarged reproduction, wherein it is clear here that the individual vortex blocks 10, 10 'are arranged with their knife edge 11 within a starter kit 22 or within its tube 23. These starter kits 22 are used to ensure at vessels without stopper yet that not already at the beginning of any dirt and vision paint remnants are guided over the bottom outlet 3 in the melt tube 4.
  • the vortex stone 10 consists of identically formed brake parts 15, 15 ', 15 "and also of fixing parts 16, 18, 19.
  • the fixing parts 16, 18, 19 are part-circular and flat, wherein they have or correspond to an inner diameter 17 which corresponds to or corresponds to that of the perforated block 20, for example according to FIG 7.
  • the brake member 15 is equipped with a mounting foot 24 which corresponds to the opening 26 in the adapter plate 25 of Figure 4, d. H. can be used there and then fixed. Here is usually done a bond.
  • the peculiarity of the adapter plate 25 is further that it is equipped with a cutting edge 28 which upon insertion or placement of the brake member 15 to a common, d. H. leads to a continuous sharp edge 28, 11.
  • the particular arrangement or use of the adapter plate 25 allows a very dense approach of the Vortex stone 10 to the perforated stone 20 and to the bottom outlet 3, 8, 9, wherein the edges 11, 28 project into the vortex 12 and affect this simultaneously. Via the adapter plate 25 is given the opportunity to influence the height of the Vortex stone 10, ie to increase, if this proves to be necessary and expedient by the nature or structure of the vessel. It is also conceivable that the adapter plate 25 is placed directly on the tundish floor 27, as indicated in Figure 7 is. In any case, Figure 5 shows that the adapter plate 25 and the brake member 15 are expediently to be arranged so that the optimally effective cutting edge 11, 28 can be fully effective.
  • FIG. 6 This special design of the knife edge 11 is illustrated once again in FIG. 6, where a vortex stone 10 is shown in plan view.
  • the brake member 15 is shown in plan view, which is rectangular in principle, the leading edge 40 is so far preferred to the trailing edge 39, that the side 38 extends obliquely relative to the other side 41, resulting in the formation of the knife edge eleventh leads.
  • the rectangular side plate is designated, while the top view of the brake member 15, the rectangular head portion 36 reproduces.
  • FIG. 7 shows an individual view of a bottom outlet, for example 8, which is represented here by the perforated brick 20, against which a fixing part 16, which carries a brake part 15, fits.
  • the knife edge 11 is here brought close to the hole stone 20, which usually closes this knife edge 11 with the inner edge 21 of the hole block 20.
  • the brake member 11 is not yet finally mounted.
  • With 27 of the tundish floor is marked, which is still filled with mortar, so as to set the hole stone 20 as well as the fixing part 16.
  • FIG. 8 shows a particular embodiment such that here the fixing part 16 is connected to the braking part 15 by a coupling pin 30 or can be connected.
  • the coupling pin 30 is inserted with the upper end in the blind hole 29, which is formed in the brake shoe base 35.
  • the lower end of the coupling pin 30 has a support collar 32 which can be inserted into the recess 31 in the fixing part 16, for which purpose this recess 31 has a correspondingly large diameter.
  • the coupling pin 30 may be formed as a cylinder 33 or as a hollow cylinder or as a wedge, wherein corresponding is not reproduced here.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

L'invention a pour but d'éviter des tourbillons (12) dans des récipients (1), (5) contenant des masses d'acier en fusion (2, 7). A cet effet, des pierres de rupture du vortex (10) sont disposées dans la zone de décharge (3, 8, 9) dans le fond du récipient, de façon que leurs arêtes de couteau (11) pénètrent dans le tourbillon (12). Les pierres de rupture du vortex (10) sont constituées par une partie fixée plane (16), en forme de segment de cercle, et par une partie formant frein (15) présentant l'arête de couteau (11), ce composant en une seule pièce (15, 16) étant appliqué, pratiquement sur l'orifice de décharge du fond (3, 8, 9) ou, de préférence, sur une pierre perforée, et pouvant être assemblé avec celle-ci, étant donné que le diamètre intérieur (17) correspond à celui de l'orifice de décharge du fond (3, 8, 9).
PCT/DE2010/000123 2009-02-19 2010-02-04 Dispositif antitourbillon dans des récipients métallurgiques WO2010094259A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910009740 DE102009009740A1 (de) 2009-02-19 2009-02-19 Vorrichtung zur Strudelvermeidung in metallurgischen Gefäßen
DE102009009740.6 2009-02-19

Publications (1)

Publication Number Publication Date
WO2010094259A1 true WO2010094259A1 (fr) 2010-08-26

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DE (1) DE102009009740A1 (fr)
WO (1) WO2010094259A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108380849A (zh) * 2018-06-01 2018-08-10 常州凌风超智科技信息咨询有限公司 一种真空铸锭用中间包的应用方法
TWI690378B (zh) * 2015-07-02 2020-04-11 美商維蘇威美國公司 餵槽出口調節器
CN112828273A (zh) * 2020-12-23 2021-05-25 中航上大高温合金材料有限公司 一种真空感应炉炉渣分离回收装置及其分离回收方法
EA038806B1 (ru) * 2018-08-21 2021-10-22 Вероника Штилькериг Устройство для извлечения жидкой стали с низким содержанием шлака из распределителя или ковша с системой deflux

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014119109B4 (de) 2014-12-18 2018-12-13 Voestalpine Stahl Gmbh Verteiler für Stranggießanlagen
CN111496242A (zh) * 2020-05-09 2020-08-07 南通大学 一种扰流式铝合金熔体除渣过滤装置及其使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1172447A1 (fr) 2000-06-28 2002-01-16 SMS Demag AG Procédé et dispositif pour éviter l'entraínement de laitier pendant l'écoulement d'un métal -, notamment de l'acier, - d'un recipient métallurgique en position verticale
DE202005005229U1 (de) * 2005-03-31 2005-08-04 Bktec Gmbh Vorrichtung zum schlackearmen Entnehmen des Flüssigstahls aus dem Verteiler bei der Stahlerzeugung
DE202005011220U1 (de) * 2005-06-02 2005-09-29 Bktec Gmbh Vorrichtung zum schlackearmen Entnehmen des Flüssigstahls aus Verteiler oder Pfanne bei der Stahlerzeugung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1172447A1 (fr) 2000-06-28 2002-01-16 SMS Demag AG Procédé et dispositif pour éviter l'entraínement de laitier pendant l'écoulement d'un métal -, notamment de l'acier, - d'un recipient métallurgique en position verticale
DE202005005229U1 (de) * 2005-03-31 2005-08-04 Bktec Gmbh Vorrichtung zum schlackearmen Entnehmen des Flüssigstahls aus dem Verteiler bei der Stahlerzeugung
DE202005011220U1 (de) * 2005-06-02 2005-09-29 Bktec Gmbh Vorrichtung zum schlackearmen Entnehmen des Flüssigstahls aus Verteiler oder Pfanne bei der Stahlerzeugung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI690378B (zh) * 2015-07-02 2020-04-11 美商維蘇威美國公司 餵槽出口調節器
CN108380849A (zh) * 2018-06-01 2018-08-10 常州凌风超智科技信息咨询有限公司 一种真空铸锭用中间包的应用方法
EA038806B1 (ru) * 2018-08-21 2021-10-22 Вероника Штилькериг Устройство для извлечения жидкой стали с низким содержанием шлака из распределителя или ковша с системой deflux
CN112828273A (zh) * 2020-12-23 2021-05-25 中航上大高温合金材料有限公司 一种真空感应炉炉渣分离回收装置及其分离回收方法

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