EP2327803B1 - Converter floating disc - Google Patents

Converter floating disc Download PDF

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Publication number
EP2327803B1
EP2327803B1 EP10014860.0A EP10014860A EP2327803B1 EP 2327803 B1 EP2327803 B1 EP 2327803B1 EP 10014860 A EP10014860 A EP 10014860A EP 2327803 B1 EP2327803 B1 EP 2327803B1
Authority
EP
European Patent Office
Prior art keywords
refractory
floating cone
floating
converter
cone
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.)
Not-in-force
Application number
EP10014860.0A
Other languages
German (de)
French (fr)
Other versions
EP2327803A1 (en
Inventor
Martin Dr. Breitzmann
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.)
Purmetall Gesellschaft fur Stahlveredlung U Co Betriebskommanditgesellschaft GmbH
Original Assignee
Purmetall Gesellschaft fur Stahlveredlung U Co Betriebskommanditgesellschaft GmbH
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Publication date
Application filed by Purmetall Gesellschaft fur Stahlveredlung U Co Betriebskommanditgesellschaft GmbH filed Critical Purmetall Gesellschaft fur Stahlveredlung U Co Betriebskommanditgesellschaft GmbH
Publication of EP2327803A1 publication Critical patent/EP2327803A1/en
Application granted granted Critical
Publication of EP2327803B1 publication Critical patent/EP2327803B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
    • B22D43/001—Retaining slag during pouring molten metal
    • B22D43/002—Retaining slag during pouring molten metal by using floating means

Definitions

  • the invention relates to a converter-floating cone according to claim 1.
  • floating cone is inserted into a continuous channel of the floating cone a tube sleeve for receiving a floating cone on both sides superior guide rod.
  • the tubular sleeve and the guide rod are with a bayonet lock enabling fasteners equipped, which leads to an increased technical effort in the production of floating cone components.
  • a refractory material converter floating cone in the bottom of a metallic guide rod is inserted, which may have a coating of refractory material.
  • the floating cone made of refractory material may be cast around the guide bar.
  • FIG. 5 a converter floating cone made of refractory material is described, in which a guide sleeve made of metal is inserted, which protrudes with its upper end out of the floating cone.
  • This guide sleeve is provided at its lower end with an internal thread, into which at its upper end an external thread having, for example made of metal guide rod can be screwed.
  • the invention has for its object to provide a comparison with the known systems simplified floating cone. This object is solved by the features of the claim.
  • a refractory preferably ceramic thread increases the operational safety, in particular in comparison to known floating cone structures, which have individual elements consisting of metal, which can melt in converter operation.
  • the floating cone according to the invention is composed of two separate transport units, namely the actual floating body 1 or 1 'and provided with a casing 3 guide rod second
  • the converter-floating cone consists of a consisting of refractory material floating body 1 and 1 ', which has a continuous channel into which a top and bottom of the float 1 and 1' projecting guide rod 2 is inserted, in its lower part with a refractory casing 3 is provided.
  • the floating body 1 or 1 'and the refractory casing are preferably made of ceramic material, in particular concrete.
  • the floating body 1 or 1 ' is provided at its lower end with a threaded bore into which a subsequent to the upper end of the casing 3 screw thread 3.1 can be screwed.
  • the screw connection between the float 1 or 1 'and the casing 3 or the screw thread 3.1 is easy to manufacture and much more stable in liquid steel than, for example, conventional steel crimp connections.
  • the screw is so tight that the screw thread 3.1 can be screwed without additional sealing material in the threaded hole.
  • float 1 or 1 ' On the outside of the float 1 or 1 'is preferably at least one along the arcuate conical surface extending groove 1.2 is arranged.

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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)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

Die Erfindung betrifft einen Konverter-Schwimmkegel gemäß Anspruch 1.The invention relates to a converter-floating cone according to claim 1.

Es handelt sich dabei um einen aus zwei getrennten Transporteinheiten zusammengesetzten Schwimmkegel, um die Transport- und Lagerkosten zu reduzieren.
Bei einem derartigen in der DE 44 20 869 C2 beschriebenen Konverter-Schwimmkegel ist in einen durchgehenden Kanal des Schwimmkegels eine Rohrhülse zur Aufnahme einer den Schwimmkegel beidseitig überragenden Führungsstange eingesetzt. Die Rohrhülse und die Führungsstange sind mit einen Bajonettverschluss ermöglichenden Verbindungselementen ausgerüstet, was zu einem erhöhten technischen Aufwand bei der Herstellung der Schwimmkegel-Komponenten führt.It is a floating cone composed of two separate transport units to reduce transport and storage costs.
In such a in the DE 44 20 869 C2 described converter floating cone is inserted into a continuous channel of the floating cone a tube sleeve for receiving a floating cone on both sides superior guide rod. The tubular sleeve and the guide rod are with a bayonet lock enabling fasteners equipped, which leads to an increased technical effort in the production of floating cone components.

In der EP 1 811 046 A1 ist unter Bezugnahme auf die Figuren 1 bis 3 ein aus feuerfestem Material bestehender Konverter-Schwimmkegel beschrieben, in den von unten eine metallische Führungsstange einschiebbar ist, die eine Beschichtung aus feuerfestem Material aufweisen kann. Alternativ kann der aus feuerfestem Material bestehende Schwimmkegel um die Führungsstange herum gegossen sein. Unter Bezugnahme auf Figur 5 ist weiterhin ein aus feuerfestem Material bestehender Konverter-Schwimmkegel beschrieben, in den eine Führungshülse aus Metall eingesetzt ist, die mit ihrem oberen Ende aus dem Schwimmkegel herausragt. Diese Führungshülse ist an ihrem unteren Ende mit einem Innengewinde versehen, in das eine an ihrem oberen Ende ein Außengewinde aufweisende, beispielsweise aus Metall bestehende Führungsstange einschraubbar ist.In the EP 1 811 046 A1 is with reference to the FIGS. 1 to 3 described a refractory material converter floating cone in the bottom of a metallic guide rod is inserted, which may have a coating of refractory material. Alternatively, the floating cone made of refractory material may be cast around the guide bar. With reference to FIG. 5, a converter floating cone made of refractory material is described, in which a guide sleeve made of metal is inserted, which protrudes with its upper end out of the floating cone. This guide sleeve is provided at its lower end with an internal thread, into which at its upper end an external thread having, for example made of metal guide rod can be screwed.

Gemäß DE 90 05 499 U1 ist in einen durchgehenden Kanal eines aus feuerfestem Material bestehenden Konverter-Schwimmkegel eine Führungsstange eingesetzt, die oben und unten aus dem Schwimmkegel herausragt. Der untere Abschnitt der Führungsstange ist mit einer feuerfesten Umkleidung versehen. Zur Halterung der Führungsstange in den Schwimmkegel sind oberhalb des Schwimmkegels angeordnete Verbindungs- bzw. Befestigungselemente vorgesehenAccording to DE 90 05 499 U1 In a continuous channel of a converter made of refractory material floating cone a guide rod is used, which protrudes from the floating cone at the top and bottom. The lower section of the guide bar is provided with a refractory casing. For holding the guide rod in the floating cone arranged above the floating cone connecting or fastening elements are provided

Der Erfindung liegt die Aufgabe zugrunde, einen gegenüber den bekannten Systemen vereinfachten Schwimmkegel zu schaffen. Diese Aufgabe wird gelöst durch die Merkmale des Patentanspruchs.The invention has for its object to provide a comparison with the known systems simplified floating cone. This object is solved by the features of the claim.

Die erfindungsgemäße Verwendung eines feuerfesten, vorzugsweise keramischen Gewindes erhöht die Betriebssicherheit, insbesondere im Vergleich zu bekannten Schwimmkegelstrukturen, die aus Metall bestehende Einzelelemente aufweisen, die im Konverterbetrieb aufschmelzen können.The use according to the invention of a refractory, preferably ceramic thread increases the operational safety, in particular in comparison to known floating cone structures, which have individual elements consisting of metal, which can melt in converter operation.

Die Erfindung wird im folgenden anhand der Zeichnung beschrieben:

  • Figur 1 ist eine Schnittdarstellung des Schwimmkegels;
  • Figur 2 zeigt in vergrößerter Darstellung einen Querschnitt des oberen Schwimmkegelbereichs;
  • Figur 3 ist eine perspektivische Ansicht des Schwimmkegels;
  • Figur 4 zeigt in vergrößerter Darstellung einen gegenüber Figur 2 abgewandelten Querschnitt des oberen Schwimmkegelbereichs.
The invention will be described below with reference to the drawing:
  • FIG. 1 is a sectional view of the floating cone;
  • FIG. 2 shows an enlarged view of a cross section of the upper floating cone area;
  • FIG. 3 is a perspective view of the floating cone;
  • FIG. 4 shows an enlarged view of an opposite FIG. 2 modified cross section of the upper floating cone area.

Der erfindungsgemäße Schwimmkegel ist aus zwei getrennten Transporteinheiten zusammengesetzt, nämlich dem eigentlichen Schwimmkörper 1 bzw. 1' und der mit einer Umkleidung 3 versehenen Führungsstange 2.The floating cone according to the invention is composed of two separate transport units, namely the actual floating body 1 or 1 'and provided with a casing 3 guide rod second

Der Konverter-Schwimmkegel besteht aus einem aus feuerfestem Material bestehenden Schwimmkörper 1 bzw. 1', der einen durchgehenden Kanal aufweist, in den eine oben und unten aus dem Schwimmkörper 1 bzw. 1' vorstehende Führungsstange 2 eingesetzt ist, die in ihrem unteren Bereich mit einer feuerfesten Umkleidung 3 versehen ist.The converter-floating cone consists of a consisting of refractory material floating body 1 and 1 ', which has a continuous channel into which a top and bottom of the float 1 and 1' projecting guide rod 2 is inserted, in its lower part with a refractory casing 3 is provided.

Der Schwimmkörper 1 bzw. 1' und die feuerfeste Umkleidung bestehen vorzugsweise aus keramischem Material, insbesondere Beton. Der Schwimmkörper 1 bzw. 1' ist an seinem unteren Ende mit einer Gewindebohrung versehen, in die ein an das obere Ende der Ummantelung 3 anschließendes Schraubengewinde 3.1 einschraubbar ist.The floating body 1 or 1 'and the refractory casing are preferably made of ceramic material, in particular concrete. The floating body 1 or 1 'is provided at its lower end with a threaded bore into which a subsequent to the upper end of the casing 3 screw thread 3.1 can be screwed.

Die Schraubverbindung zwischen dem Schwimmkörper 1 bzw. 1' und der Umkleidung 3 bzw. dem Schraubengewinde 3.1 ist leicht herzustellen und wesentlich beständiger in flüssigem Stahl als beispielsweise herkömmliche stählerne Quetschverbindungen. Die Schraubverbindung ist so dicht, dass das Schraubengewinde 3.1 ohne zusätzliches Dichtungsmaterial in die Gewindebohrung eingeschraubt werden kann.The screw connection between the float 1 or 1 'and the casing 3 or the screw thread 3.1 is easy to manufacture and much more stable in liquid steel than, for example, conventional steel crimp connections. The screw is so tight that the screw thread 3.1 can be screwed without additional sealing material in the threaded hole.

An der Außenseite des Schwimmkörpers 1 bzw. 1' ist vorzugsweise mindestens eine entlang der bogenförmigen Kegelfläche verlaufende Nut 1.2 angeordnet.On the outside of the float 1 or 1 'is preferably at least one along the arcuate conical surface extending groove 1.2 is arranged.

Claims (2)

  1. Slag stopper for converters, consisting of a refractory swim body (1 or 1', respectively) having an end-to-end passage, into which a guide rod (2) is insertable, which projects at the top and at the bottom out of the swim-body and is provided at its lower sector with a refractory covering (3) characterized in that the refractory covering (3) merges at its upper end into a refractory screw thread (3.1) for screwing into a threaded bore at the lower end of the swim-body (1 or 1', respectively).
  2. Slag stopper according to claim 1, characterized in that the covering and the screw thread (3.1) consist of ceramic material.
EP10014860.0A 2009-11-26 2010-11-23 Converter floating disc Not-in-force EP2327803B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009016140U DE202009016140U1 (en) 2009-11-26 2009-11-26 Converter swimming cone

Publications (2)

Publication Number Publication Date
EP2327803A1 EP2327803A1 (en) 2011-06-01
EP2327803B1 true EP2327803B1 (en) 2016-05-04

Family

ID=43431790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10014860.0A Not-in-force EP2327803B1 (en) 2009-11-26 2010-11-23 Converter floating disc

Country Status (2)

Country Link
EP (1) EP2327803B1 (en)
DE (1) DE202009016140U1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9005499U1 (en) * 1990-05-15 1991-09-12 Foseco International Ltd., Birmingham Floating body closure to retain the slag
DE4420869C2 (en) 1994-06-15 2002-05-29 Stilkerieg Berthold Converter swimming cone
US6723275B2 (en) * 2001-01-16 2004-04-20 Tetron, Inc. Vortex inhibitor with sacrificial rod

Also Published As

Publication number Publication date
EP2327803A1 (en) 2011-06-01
DE202009016140U1 (en) 2011-08-30

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