EP0834367B1 - Konverterverschlussschwimmer - Google Patents
Konverterverschlussschwimmer Download PDFInfo
- 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
Links
- 239000011819 refractory material Substances 0.000 claims description 5
- 229910000639 Spring steel Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 3
- 239000002893 slag Substances 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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)
- Adjustment Of Camera Lenses (AREA)
- Amplifiers (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Level Indicators Using A Float (AREA)
Description
- Fig. 1
- einen Längsschnitt durch eine Führungsstange eines erfindungsgemäßen Schwimmers;
- Fig. 2
- einen Längsschnitt durch einen Schwimmerkörper des erfindungsgemäßen Schwimmers;
- Fig. 3
- einen Querschnitt durch den Schwimmerkörper des erfindungsgemäßen Schwimmers;
- Fig. 4
- einen zusammengebauten Schwimmer gemäß der vorliegenden Erfindung;
- Fig. 5a
- eine Draufsicht auf eine Federscheibe;
- Fig. 5b
- einen Schnitt entlang der Linie 1-1 in Fig. 5a.
Claims (8)
- Konverterverschlußschwimmer, der einen aus einem feuerfesten Werkstoff bestehenden Schwimmerkörper (1) mit einer Durchgangsöffnung (7) und eine in der Durchgangsöffnung (7) fixierbare Führungsstange (3, 4) aufweist, wobei eine aus Federstahl bestehende Federscheibe (2) in den Schwimmerkörper eingearbeitet ist, welche eine einen Abschnitt der Führungsstange (3, 4) umschließende Durchgangsöffnung (8) aufweist, dadurch gekennzeichnet, daß die Durchgangsöffnung (8) der Federscheibe (2) einen kleineren Durchmesser aufweist als der von der Durchgangsöffnung (7b) umschlossene Abschnitt der Führungsstange (3), so daß der Schwimmerkörper (1) von der Federscheibe in einer formschlüssigen Verbindung festgehalten wird.
- Konverterverschlußschwimmer nach Anspruch 1, dadurch gekennzeichnet, daß die Federscheibe (2) eine mit Lamellen (6) versehene Durchgangsöffnung (8) aufweist.
- Konverterverschlußschwimmer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Führungsstange (3, 4) aus einem länglichen, metallischen Bauteil (3) besteht, das über den bei Gebrauch in die Schmelze tauchenden Teil seiner Länge einen Mantel (4) aus einem feuerfesten Material aufweist.
- Konverterverschlußschwimmer nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Federscheibe (2) mit dem länglichen, metallischen Teil (3) eine formschlüssige Verbindung eingeht.
- Konverterverschlußschwimmer nach Ansprüche 3 oder 4, dadurch gekennzeichnet, daß ein erster Teil (7a) der Durchgangsöffnung, der an die Federscheibe (2) angrenzt, einen Durchmesser (b) aufweist, der dem Durchmesser (a) des Mantels (4) entspricht.
- Konverterverschlußschwimmer nach Anspruch 5, dadurch gekennzeichnet, daß zumindest ein Teil des ersten Teils (7a) der Durchgangsöffnung den Mantel (4) umschließt.
- Konverterverschlußschwimmer nach Anspruch 6, dadurch gekennzeichnet, daß ein zweiter Teil (7b) der Durchgangsöffnung, der von der gegenüberliegenden Seite an die Federscheibe (2) angrenzt, einen Durchmesser aufweist, der dem Durchmesser des länglichen, metallischen Teils (3) entspricht.
- Konverterverschlußschwimmer nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schwimmerkörper halbkugelförmig ausgebildet ist.
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 (de) | 1998-04-08 |
| EP0834367B1 true EP0834367B1 (de) | 2001-01-24 |
Family
ID=8030023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97114505A Expired - Lifetime EP0834367B1 (de) | 1996-10-01 | 1997-08-21 | Konverterverschlussschwimmer |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0834367B1 (de) |
| AT (1) | ATE198848T1 (de) |
| DE (2) | DE29617115U1 (de) |
Families Citing this family (1)
| 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)
| 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 |
-
1996
- 1996-10-01 DE DE29617115U patent/DE29617115U1/de not_active Expired - Lifetime
-
1997
- 1997-08-21 DE DE59702948T patent/DE59702948D1/de not_active Expired - Lifetime
- 1997-08-21 EP EP97114505A patent/EP0834367B1/de not_active Expired - Lifetime
- 1997-08-21 AT AT97114505T patent/ATE198848T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE29617115U1 (de) | 1996-11-14 |
| ATE198848T1 (de) | 2001-02-15 |
| DE59702948D1 (de) | 2001-03-01 |
| EP0834367A1 (de) | 1998-04-08 |
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