EP0834367B1 - Flotteur pour fermeture de convertisseur - Google Patents

Flotteur pour fermeture de convertisseur Download PDF

Info

Publication number
EP0834367B1
EP0834367B1 EP97114505A EP97114505A EP0834367B1 EP 0834367 B1 EP0834367 B1 EP 0834367B1 EP 97114505 A EP97114505 A EP 97114505A EP 97114505 A EP97114505 A EP 97114505A EP 0834367 B1 EP0834367 B1 EP 0834367B1
Authority
EP
European Patent Office
Prior art keywords
opening
spring washer
float
guide rod
converter
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
EP97114505A
Other languages
German (de)
English (en)
Other versions
EP0834367A1 (fr
Inventor
Diethardt Küppers
Gürsel Dogan
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.)
Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
Original Assignee
Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
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 Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG filed Critical Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
Publication of EP0834367A1 publication Critical patent/EP0834367A1/fr
Application granted granted Critical
Publication of EP0834367B1 publication Critical patent/EP0834367B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
    • 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 converter closure float, which consists of a refractory Material existing float body and a fixable in the float body Has guide rod.
  • floats are well known in the art and are, for example used to retain the slag in a converter.
  • floats consist of a hemisphere made of concrete with a defined Density and a built-in guide rod.
  • the swimmers swim against End of a converter tapping between steel and slag and prevent that Slag flows out of the converter.
  • the guide rod is already in the Float body installed if the float is supplied by the manufacturer. Out However, for space or transportation reasons, it is sometimes preferred if the swimmer is supplied in two parts by the manufacturer. The assembly is then at the customer performed.
  • connection options for suggested the float body and the guide rods, but all very are complex and also special tools, mortar or other handling objects require.
  • a converter closure float is already known, the one Float body and a guide rod fixed in the float body.
  • the float body has a through opening through which a section extends the guide rod extends through.
  • the through opening is with a metallic Provide a lining that surrounds the guide rod. Outside of A bead is molded into the metallic lining, with its Help the guide rod and the metallic lining form-fit with each other are connected.
  • the metallic lining is in turn with the help of suitable anchoring devices fixed in the float body.
  • the lower end of the metallic Lining is formed by a disc which has a through opening, which surrounds the guide rod. For pressing the above A special tool is required.
  • the present invention is therefore based on the object of providing a float its assembly without any aids to simple and inexpensive Way can be accomplished.
  • the guide rod consists of an elongated metallic part, the one over the part of its length immersed in the melt when in use Has jacket made of a refractory material, the spring washer after assembly with the elongated metallic part itself under operating conditions non-releasing connection.
  • the Float body through a passage through which the guide rod is pushed and into which the spring washer is incorporated, a first part of the through opening, which is adjacent to the spring washer, has a diameter which corresponds to the diameter of the jacket.
  • a second part of the Through opening which adjoins the spring washer from the opposite side, have a diameter that corresponds to the diameter of the elongated metallic Partially corresponds. This results in an exact and form-fitting connection between the float body and the guide rod.
  • the float body is advantageously hemispherical.
  • FIG. 4 shows a preferred embodiment of the present invention.
  • the assembled float shown in FIG. 4 consists of the one shown in FIG. 1 shown guide rod 3, 4 and the float body shown in Fig. 2 1.
  • the Float body 1 is hemispherical and has a center a through opening 7a, 7b.
  • the float has a certain density and so swims towards the end of a converter tapping between steel and slag and thus prevents slag from flowing out of the converter.
  • the guide rod consists of a metallic part 3, which preferably has a part its length has a protective jacket 4 made of a refractory Material exists.
  • the through opening of the float body 1 from two parts 7a and 7b, each bordering on the spring washer 2 and through these are separate.
  • the first part 7a of the through opening 7 has a diameter b on the diameter a of the jacket of the guide rod 4th corresponds.
  • the second part 7b of the through opening 7 has a diameter c the diameter d of the unclad metallic part 3 corresponds.
  • the first part 7a of the through opening 7 is via the opening 8 of the spring washer 2 connected to the second part of the through opening 7b.
  • the diameter the opening 8 of the spring washer 2 is smaller than the diameter b of the through opening 7a and smaller than the diameter d of the metallic part 3.
  • the jacket 4 protrudes only a little into the first part of the through opening 7a.
  • the arrangement of the passage opening parts 7a, 7b of the float body 1, the Size and the arrangement of the spring washer are of course not on this Embodiment limited.
  • the spring washer can also be used at the beginning or be arranged at the end of the through opening of the float body 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Amplifiers (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Level Indicators Using A Float (AREA)

Claims (8)

  1. Flotteur pour fermeture de convertisseur comprenant un corps de flotteur (1) en un matériau réfractaire avec une ouverture de passage (7) et une barre conductrice (3, 4) pouvant être fixée dans l'ouverture de passage (7), une rondelle élastique (2) en acier à ressorts étant incorporée dans le corps de flotteur, laquelle rondelle élastique comporte une ouverture de passage (8) entourant une section de la barre conductrice (3, 4), caractérisé en ce que l'ouverture de passage (8) de la rondelle élastique (2) présente un diamètre plus petit que la section de la barre conductrice (3) entourée par l'ouverture de passage (7b) de sorte que le corps de flotteur (1) est maintenu par la rondelle élastique dans une liaison par complémentarité de formes.
  2. Flotteur pour fermeture de convertisseur selon la revendication 1, caractérisé en ce que la rondelle élastique (2) comporte une ouverture de passage (8) pourvue de lamelles (6).
  3. Flotteur pour fermeture de convertisseur selon la revendication 1 ou 2, caractérisé en ce que la barre conductrice (3, 4) est formée d'une pièce (3) métallique allongée qui, sur la partie de sa longueur plongeant dans la fonte pendant l'utilisation, comporte une enveloppe (4) en un matériau réfractaire.
  4. Flotteur pour fermeture de convertisseur selon au moins une des revendications 1 à 3, caractérisé en ce que la rondelle élastique (2) est en liaison par complémentarité de formes avec la pièce (3) métallique allongée.
  5. Flotteur pour fermeture de convertisseur selon la revendication 3 ou 4, caractérisé en ce qu'une première partie (7a) de l'ouverture de passage, qui est adjacente à la rondelle élastique (2), présente un diamètre (b) qui correspond au diamètre (a) de l'enveloppe (4).
  6. Flotteur pour fermeture de convertisseur selon la revendication 5, caractérisé en ce qu'au moins un tronçon de la première partie (7a) de l'ouverture de passage entoure l'enveloppe (4).
  7. Flotteur pour fermeture de convertisseur selon la revendication 6, caractérisé en ce qu'une seconde partie (7b) de l'ouverture de passage, qui est adjacente à la rondelle élastique (2) du côté opposé, présente un diamètre qui correspond au diamètre de la pièce (3) métallique allongée.
  8. Flotteur pour fermeture de convertisseur selon au moins une des revendications précédentes, caractérisé en ce que le corps de flotteur est hémisphérique.
EP97114505A 1996-10-01 1997-08-21 Flotteur pour fermeture de convertisseur Expired - Lifetime EP0834367B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29617115U DE29617115U1 (de) 1996-10-01 1996-10-01 Konverterverschlußschwimmer
DE29617115U 1996-10-01

Publications (2)

Publication Number Publication Date
EP0834367A1 EP0834367A1 (fr) 1998-04-08
EP0834367B1 true EP0834367B1 (fr) 2001-01-24

Family

ID=8030023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114505A Expired - Lifetime EP0834367B1 (fr) 1996-10-01 1997-08-21 Flotteur pour fermeture de convertisseur

Country Status (3)

Country Link
EP (1) EP0834367B1 (fr)
AT (1) ATE198848T1 (fr)
DE (2) DE29617115U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6723275B2 (en) 2001-01-16 2004-04-20 Tetron, Inc. Vortex inhibitor with sacrificial rod

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494734A (en) * 1983-07-22 1985-01-22 Labate M D Slag retaining device for use during tapping of converters and method
US4709903A (en) * 1986-05-08 1987-12-01 Labate M D Slag retaining device for use in converters, ladles, or the like
GB8922863D0 (en) * 1989-10-11 1989-11-29 Monocon Int Ltd Tap hole closure means
DE9005499U1 (de) * 1990-05-15 1991-09-12 Foseco International Ltd., Birmingham Schwimmkörperverschluß zum Zurückhalten der Schlacke
GB9120602D0 (en) * 1991-09-28 1991-11-06 Monocon International Ltd Metallurgical dart

Also Published As

Publication number Publication date
DE59702948D1 (de) 2001-03-01
ATE198848T1 (de) 2001-02-15
EP0834367A1 (fr) 1998-04-08
DE29617115U1 (de) 1996-11-14

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