EP0834367A1 - Float for converter closure - Google Patents

Float for converter closure Download PDF

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Publication number
EP0834367A1
EP0834367A1 EP97114505A EP97114505A EP0834367A1 EP 0834367 A1 EP0834367 A1 EP 0834367A1 EP 97114505 A EP97114505 A EP 97114505A EP 97114505 A EP97114505 A EP 97114505A EP 0834367 A1 EP0834367 A1 EP 0834367A1
Authority
EP
European Patent Office
Prior art keywords
float
spring washer
guide rod
opening
diameter
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.)
Granted
Application number
EP97114505A
Other languages
German (de)
French (fr)
Other versions
EP0834367B1 (en
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
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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/en
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Publication of EP0834367B1 publication Critical patent/EP0834367B1/en
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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 float, the float and a Float body has fixable 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.
  • 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.
  • this object is achieved in that a spring washer in the Float body is incorporated, which after assembly the guide rod encloses and with this a non-dissolving under operating conditions Connection comes in.
  • the float body needs only via the guide rod to be put over or the guide rod pushed into the float body to become, without the need for additional tools. Will the guide rod pushed in the direction of insertion through the spring washer into the float, so this is clamped by the spring washer and can no longer come out of the float to be pulled.
  • the spring washer has a through opening provided with lamellae on. The through opening of the spring washer has a smaller diameter than the guide bar on.
  • the guide rod consists of an elongated metallic part, a part of its length made of a fire-resistant material has, wherein the spring washer after assembly with the elongated metallic Part of the connection that does not come loose under operating conditions. By the metallic part of the jacket is protected from the melt.
  • 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 in corresponds essentially to the diameter of the jacket. At least encloses part of the first through opening the jacket. Because the coat in the first Part of the through hole protrudes, the metallic part of the guide rod protected from the slag.
  • a second part of the through opening, that adjoins the spring washer from the opposite side one Have diameter that is essentially 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 essentially 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 has a part its length has a protective jacket 4, which is preferably 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, which essentially corresponds to the diameter a of the jacket of the guide rod 4 corresponds.
  • the second part 7b of the through opening 7 has a diameter c which is essentially 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.
  • FIG. 5a a preferred embodiment of a spring washer 2 is shown, which is shown in FIG the float body 1 is installed.
  • the spring washer 2 is made of spring steel and, as can be seen in Fig. 5b, deformed curved to give a better spring effect achieve.
  • the spring washer 2 has a plurality of radially inwardly directed Slats 6, which serve that the spring washer and the guide rod a form a solid connection with each other.
  • 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.

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  • 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)

Abstract

The float assembly, to retain slag in a converter, has a spring disc (2) incorporated into the float body (1). After assembly, it covers the guide rod (3,4) in a bond with it which does not break under operating conditions.

Description

Die Erfindung betrifft einen Schwimmer, der einen Schwimmerkörper und eine im Schwimmerkörper fixierbare Führungsstange aufweist.The invention relates to a float, the float and a Float body has fixable guide rod.

Derartige Schwimmer sind aus dem Stand der Technik wohlbekannt und werden beispielsweise zum Zurückhalten der Schlacke in einem Konverter verwendet. Die Schwimmer bestehen in den meisten Fällen aus einer Halbkugel aus Beton mit definierter Dichte und einer eingebauten Führungsstange. Die Schwimmer schwimmen gegen Ende eines Konverterabstiches zwischen Stahl und Schlacke und verhindern, daß Schlacke aus dem Konverter fließt. Teilweise ist die Führungsstange bereits in dem Schwimmerkörper eingebaut, wenn der Schwimmer vom Hersteller geliefert wird. Aus Platz- oder Transportgründen wird es jedoch manchmal bevorzugt, wenn der Schwimmer zweiteilig vom Hersteller geliefert wird. Der Zusammenbau wird dann beim Abnehmer vorgenommen. Es wurden bereits eine Vielzahl von Verbindungsmöglichkeiten für den Schwimmerkörper und die Führungsstangen vorgeschlagen, die jedoch alle sehr aufwendig sind und darüber hinaus spezielle Werkzeuge, Mörtel oder sonstige Handhabungsgegenstände erfordern.Such floats are well known in the art and are, for example used to retain the slag in a converter. The In most cases, 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. Sometimes 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. There have already been a variety of 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.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen Schwimmer bereitzustellen, dessen Zusammenbau ohne jedes Hilfsmittel auf einfache und kostengünstige Art und Weise bewerkstelligt werden kann.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.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß eine Federscheibe in den Schwimmerkörper eingearbeitet ist, welche nach dem Zusammenbau die Führungsstange umschließt und mit dieser eine unter Betriebsbedingungen sich nicht lösende Verbindung eingeht.According to the invention this object is achieved in that a spring washer in the Float body is incorporated, which after assembly the guide rod encloses and with this a non-dissolving under operating conditions Connection comes in.

Bei der erfindungsgemäßen Lösung braucht der Schwimmerkörper nur über die Führungsstange gestülpt zu werden bzw. die Führungsstange in den Schwimmerkörper geschoben zu werden, ohne daß zusätzliches Werkzeug nötig ist. Wird die Führungsstange in Einführrichtung durch die Federscheibe in den Schwimmerkörper geschoben, so wird diese von der Federscheibe festgeklemmt und kann nicht mehr aus dem Schwimmerkörper gezogen werden. Gemäß einem bevorzugten Ausführungsbeispiel der vorliegenden Erfindung weist die Federscheibe eine mit Lamellen versehene Durchgangsöffnung auf. Die Durchgangsöffnung der Federscheibe weist einen kleineren Durchmesser als die Führungsstange auf. Beim Zusammenbau der Führungsstange mit dem Schwimmerkörper verkrallen sich die Lamellen der Federscheibe ausreichend fest an der Führungsstange, so daß die beiden Teile fest und unlösbar miteinander verbunden sind.In the solution according to the invention, the float body needs only via the guide rod to be put over or the guide rod pushed into the float body to become, without the need for additional tools. Will the guide rod pushed in the direction of insertion through the spring washer into the float, so this is clamped by the spring washer and can no longer come out of the float to be pulled. According to a preferred embodiment of the present Invention, the spring washer has a through opening provided with lamellae on. The through opening of the spring washer has a smaller diameter than the guide bar on. When assembling the guide rod with the Float bodies grip the lamellae of the spring washer sufficiently firmly the guide rod so that the two parts are firmly and permanently connected are.

Es ist vorteilhaft, wenn die Führungsstange aus einem länglichen metallischen Teil besteht, der über einen Teil seiner Länge einen Mantel aus einem feuerfesten Material aufweist, wobei die Federscheibe nach dem Zusammenbau mit dem länglichen metallischen Teil die unter Betriebsbedingungen sich nicht lösende Verbindung eingeht. Durch den Mantel wird der metallische Teil vor der Schmelze geschützt.It is advantageous if the guide rod consists of an elongated metallic part, a part of its length made of a fire-resistant material has, wherein the spring washer after assembly with the elongated metallic Part of the connection that does not come loose under operating conditions. By the metallic part of the jacket is protected from the melt.

Gemäß einem vorteilhaften Ausführungsbeispiel der vorliegenden Erfindung weist der Schwimmerkörper eine Durchgangsöffnung auf, durch die die Führungsstange geschoben wird und in die die Federscheibe eingearbeitet ist, wobei ein erster Teil der Durchgangsöffnung, der an die Federscheibe angrenzt, einen Durchmesser aufweist, der im wesentlichen dem Durchmesser des Mantels entspricht. Dabei umschließt zumindest ein Teil der ersten Durchgangsöffnung den Mantel. Dadurch, daß der Mantel in den ersten Teil der Durchgangsöffnung hineinragt, wird der metallische Teil der Führungsstange vor der Schlacke geschützt. Darüber hinaus kann ein zweiter Teil der Durchgangsöffnung, der von der gegenüberliegenden Seite an die Federscheibe angrenzt, einen Durchmesser aufweisen, der im wesentlichen dem Durchmesser des länglichen metallischen Teils entspricht. Somit ergibt sich eine exakte und formschlüssige Verbindung zwischen dem Schwimmerkörper und der Führungsstange.According to an advantageous embodiment of the present invention, 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 in corresponds essentially to the diameter of the jacket. At least encloses part of the first through opening the jacket. Because the coat in the first Part of the through hole protrudes, the metallic part of the guide rod protected from the slag. In addition, a second part of the through opening, that adjoins the spring washer from the opposite side, one Have diameter that is essentially 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.

In vorteilhafter Weise ist der Schwimmerkörper halbkugelförmig ausgebildet.The float body is advantageously hemispherical.

Ein Ausführungsbeispiel der vorliegenden Erfindung wird anhand der nachfolgenden Figuren näher erläutert. Dabei zeigt

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 I-I in Fig. 5a.
An embodiment of the present invention is explained in more detail with reference to the following figures. It shows
Fig. 1
a longitudinal section through a guide rod of a float according to the invention;
Fig. 2
a longitudinal section through a float body of the float according to the invention;
Fig. 3
a cross section through the float body of the float according to the invention;
Fig. 4
an assembled float according to the present invention;
Fig. 5a
a plan view of a spring washer;
Fig. 5b
a section along the line II in Fig. 5a.

Die Figuren 1 bis 5 zeigen ein bevorzugtes Ausführungsbeispiel der vorliegenden Erfindung. Der in Fig. 4 gezeigte, zusammengebaute Schwimmer besteht aus der in Fig. 1 gezeigten Führungsstange 3, 4 und dem in Fig. 2 gezeigten Schwimmerkörper 1. Der Schwimmerkörper 1 ist im wesentlichen halbkugelförmig ausgebildet und weist im Zentrum eine Durchgangsöffnung 7a, 7b auf. Der Schwimmer hat eine bestimmte Dichte und schwimmt so gegen Ende eines Konverterabstiches zwischen Stahl und Schlacke und verhindert somit, daß Schlacke aus dem Konverter fließt. Wie aus Fig. 1 hervorgeht, besteht die Führungsstange aus einem metallischen Teil 3, der über einen Teil seiner Länge einen schützenden Mantel 4 aufweist, der vorzugsweise aus einem feuerfesten Material besteht.Figures 1 to 5 show 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 essentially 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. As is apparent from Fig. 1 the guide rod consists of a metallic part 3, which has a part its length has a protective jacket 4, which is preferably made of a refractory Material exists.

In diesem Ausführungsbeispiel besteht die Durchgangsöffnung des Schwimmerkörpers 1 aus zwei Teilen 7a und 7b, die jeweils an die Federscheibe 2 angrenzen und durch diese getrennt sind. Der erste Teil 7a der Durchgangsöffnung 7 weist einen Durchmesser b auf, der im wesentlichen dem Durchmesser a des Mantels der Führungsstange 4 entspricht. Der zweite Teil 7b der Durchgangsöffnung 7 weist einen Durchmesser c auf, der im wesentlichen dem Durchmesser d des nicht ummantelten, metallischen Teils 3 entspricht. Der erste Teil 7a der Durchgangsöffnung 7 ist über die Öffnung 8 der Federscheibe 2 mit dem zweiten Teil der Durchgangsöffnung 7b verbunden. Der Durchmesser der Öffnung 8 der Federscheibe 2 ist kleiner als der Durchmesser b der Durchgangsöffnung 7a und kleiner als der Durchmesser d des metallischen Teils 3. In Figuren 5a und 5b ist eine bevorzugte Ausführungsform einer Federscheibe 2 gezeigt, die in dem Schwimmerkörper 1 eingebaut ist. Die Federscheibe 2 ist aus Federstahl gefertigt und, wie aus Fig. 5b hervorgeht, gekrümmt verformt, um eine bessere Federwirkung zu erzielen. Darüber hinaus weist die Federscheibe 2 mehrere radial nach innen gerichtete Lamellen 6 auf, die dazu dienen, daß die Federscheibe und die Führungsstange eine feste Verbindung miteinander bilden.In this embodiment, 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, which essentially corresponds to the diameter a of the jacket of the guide rod 4 corresponds. The second part 7b of the through opening 7 has a diameter c which is essentially 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. In figures 5a and 5b, a preferred embodiment of a spring washer 2 is shown, which is shown in FIG the float body 1 is installed. The spring washer 2 is made of spring steel and, as can be seen in Fig. 5b, deformed curved to give a better spring effect achieve. In addition, the spring washer 2 has a plurality of radially inwardly directed Slats 6, which serve that the spring washer and the guide rod a form a solid connection with each other.

Beim Zusammenbau des Schwimmerkörpers 1 und der Führungsstange 3, 4 wird die Führungsstange mit dem nicht ummantelten, metallischen Teil 3 in Einführrichtung A zunächst durch den ersten Teil 7a der Durchgangsöffnung T des Schwimmerkörpers 1 und durch die Durchgangsöffnung 8 der Federscheibe 2 geschoben. Dabei verkrallen sich die Lamellen 6 der Federscheibe 2 ausreichend fest an dem metallischen Teil 3 der Führungsstange 3, 4. Es ergibt sich somit eine sich unter Betriebsbedingungen nicht lösende, formschlüssige Verbindung, wobei der Mantel 4 in dem ersten Teil 7a der Öffnung zu liegen kommt und der nicht ummantelte metallische Teil 3 der Führungsstange in dem zweiten Teil des Schwimmerkörpers 1. Bei diesem Ausführungsbeispiel stößt die Stirnfläche 4a des Mantels 4 an der Federscheibe 2 an.When assembling the float body 1 and the guide rod 3, 4, the Guide rod with the uncovered, metallic part 3 in the insertion direction A first through the first part 7a of the through opening T of the float body 1 and pushed through the through opening 8 of the spring washer 2. Claw in the process the slats 6 of the spring washer 2 are sufficiently firm on the metallic part 3 of the Guide rod 3, 4. There is therefore no result under operating conditions releasing, positive connection, the jacket 4 in the first part 7a of the opening comes to rest and the unclad metallic part 3 of the guide rod in the second part of the float body 1. In this embodiment, the End face 4a of the jacket 4 on the spring washer 2.

Bei einem nicht gezeigten weiteren Ausführungsbeispiel ragt der Mantel 4 nur ein Stück in den ersten Teil der Durchgangsöffnung 7a hinein.In a further embodiment, not shown, the jacket 4 protrudes only a little into the first part of the through opening 7a.

Die Anordnung der Durchgangsöffnungsteile 7a, 7b des Schwimmerkörpers 1, deren Größe und die Anordnung der Federscheibe sind selbstverständlich nicht auf dieses Ausführungsbeispiel beschränkt. Die Federscheibe kann beispielsweise auch am Anfang oder am Ende der Durchgangsöffnung des Schwimmerkörpers 1 angeordnet sein.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.

Claims (9)

Schwimmer, der einen Schwimmerkörper (1) und eine im Schwimmerkörper fixierbare Führungsstange (3, 4) aufweist, dadurch gekennzeichnet, daß eine Federscheibe (2) in den Schwimmerkörper (1) eingearbeitet ist, welche nach dem Zusammenbau die Führungsstange (3, 4) umschließt und mit dieser eine unter Betriebsbedingungen sich nicht lösende Verbindung eingeht.Float which has a float body (1) and a guide rod (3, 4) which can be fixed in the float body, characterized in that a spring washer (2) is worked into the float body (1) which, after assembly, the guide rod (3, 4) encloses and enters into a connection that does not come loose under operating conditions. Schwimmer nach Anspruch 1, dadurch gekennzeichnet, daß die Federscheibe (2) eine mit Lamellen (6) versehene Durchgangsöffnung (8) aufweist.Float according to claim 1, characterized in that the spring washer (2) has a passage opening (8) provided with lamellae (6). Schwimmer nach Anspruch 2, dadurch gekennzeichnet, daß die Durchgangsöffnung (8) der Federscheibe (2) einen kleineren Durchmesser aufweist als die Führungsstange (3, 4).Float according to claim 2, characterized in that the through opening (8) of the spring washer (2) has a smaller diameter than the guide rod (3, 4). Schwimmer nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Führungsstange (3, 4) aus einem länglichen metallischen Teil (3) besteht, der über einen Teil seiner Länge einen Mantel (4) aufweist.Float according to at least one of Claims 1 to 3, characterized in that the guide rod (3, 4) consists of an elongated metallic part (3) which has a jacket (4) over part of its length. Schwimmer nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Federscheibe (2) mit dem länglichen metallischen Teil (3) die unter Betriebsbedingungen sich nicht lösende Verbindung eingeht.Float according to at least one of Claims 1 to 4, characterized in that the spring washer (2) with the elongated metallic part (3) forms the connection which does not come loose under operating conditions. Schwimmer nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schwimmerkörper (1) eine Durchgangsöffnung (7) aufweist, durch die die Führungsstange (3, 4) geschoben wird und in die die Federscheibe (2) eingearbeitet ist, wobei ein erster Teil (7a) der Durchgangsöffnung, der an die Federscheibe (2) angrenzt, einen Durchmesser (b) aufweist, der im wesentlichen dem Durchmesser (a) des Mantels (4) entspricht.Float according to at least one of the preceding claims, characterized in that the float body (1) has a through opening (7) through which the guide rod (3, 4) is pushed and into which the spring washer (2) is incorporated, a first part (7a) of the through opening, which adjoins the spring washer (2), has a diameter (b) which essentially corresponds to the diameter (a) of the casing (4). Schwimmer nach Anspruch 6, dadurch gekennzeichnet, daß zumindest der erste Teil (7a) der Durchgangsöffnung den Mantel (4) umschließt. Float according to claim 6, characterized in that at least the first part (7a) of the through opening surrounds the casing (4). Schwimmer nach Anspruch 7, dadurch gekennzeichnet, daß ein zweiter Teil (7b) der Durchgangsöffnung, der von der gegenüberliegenden Seite an die Federscheibe (2) angrenzt, einen Durchmesser aufweist, der im wesentlichen dem Durchmesser des länglichen metallischen Teils (3) entspricht.Float according to claim 7, characterized in that a second part (7b) of the through opening, which adjoins the spring washer (2) from the opposite side, has a diameter which essentially corresponds to the diameter of the elongated metallic part (3). Schwimmer nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schwimmerkörper halbkugelförmig ausgebildet ist.Float according to at least one of the preceding claims, characterized in that the float body is hemispherical.
EP97114505A 1996-10-01 1997-08-21 Float for converter closure Expired - Lifetime EP0834367B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29617115U DE29617115U1 (en) 1996-10-01 1996-10-01 Converter lock float
DE29617115U 1996-10-01

Publications (2)

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

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EP97114505A Expired - Lifetime EP0834367B1 (en) 1996-10-01 1997-08-21 Float for converter closure

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EP (1) EP0834367B1 (en)
AT (1) ATE198848T1 (en)
DE (2) DE29617115U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002057500A1 (en) * 2001-01-16 2002-07-25 Tetron, Inc. Vortex inhibitor with sacrificial rod

Citations (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
GB2236837A (en) * 1989-10-11 1991-04-17 Monocon Int Ltd Tap hole closure
DE9005499U1 (en) * 1990-05-15 1991-09-12 Foseco International Ltd., Birmingham Floating body closure to retain the slag
GB2259975A (en) * 1991-09-28 1993-03-31 Monocon Int Ltd Tap hole closure

Patent Citations (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
GB2236837A (en) * 1989-10-11 1991-04-17 Monocon Int Ltd Tap hole closure
DE9005499U1 (en) * 1990-05-15 1991-09-12 Foseco International Ltd., Birmingham Floating body closure to retain the slag
GB2259975A (en) * 1991-09-28 1993-03-31 Monocon Int Ltd Tap hole closure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002057500A1 (en) * 2001-01-16 2002-07-25 Tetron, Inc. Vortex inhibitor with sacrificial rod
US6723275B2 (en) 2001-01-16 2004-04-20 Tetron, Inc. Vortex inhibitor with sacrificial rod
EP1811046A1 (en) * 2001-01-16 2007-07-25 Tetron, Inc. Vortex inhibitor with sacrificial rod

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ATE198848T1 (en) 2001-02-15
EP0834367B1 (en) 2001-01-24
DE29617115U1 (en) 1996-11-14
DE59702948D1 (en) 2001-03-01

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