EP0004613B1 - Converter with a detachable floor - Google Patents

Converter with a detachable floor Download PDF

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Publication number
EP0004613B1
EP0004613B1 EP79100887A EP79100887A EP0004613B1 EP 0004613 B1 EP0004613 B1 EP 0004613B1 EP 79100887 A EP79100887 A EP 79100887A EP 79100887 A EP79100887 A EP 79100887A EP 0004613 B1 EP0004613 B1 EP 0004613B1
Authority
EP
European Patent Office
Prior art keywords
clamping
converter
abutment
guideway
designed
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
Application number
EP79100887A
Other languages
German (de)
French (fr)
Other versions
EP0004613A1 (en
Inventor
Manfred Ing. Eysn
Daniel Meyer
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.)
Voestalpine AG
USINOR SA
Original Assignee
Voestalpine AG
Union Siderurgique du Nord et de lEst de France SA USINOR
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 Voestalpine AG, Union Siderurgique du Nord et de lEst de France SA USINOR filed Critical Voestalpine AG
Publication of EP0004613A1 publication Critical patent/EP0004613A1/en
Application granted granted Critical
Publication of EP0004613B1 publication Critical patent/EP0004613B1/en
Expired 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
    • C21C5/48—Bottoms or tuyéres of converters

Definitions

  • the invention relates to a converter with a removable bottom, which is fastened by means of a number of rocker-shaped tension levers arranged around its circumference to the converter jacket or to a supporting structure connected to it, the tension levers coming from or into the engagement. position can be moved with the floor.
  • the invention relates to an improvement or further training of the above-mentioned construction.
  • the object is to carry out a longitudinal displacement of the tensioning lever with little effort by using the tensioning means both for tensioning and for releasing the tensioning lever from the holding position.
  • clamping means articulated with the tensioning lever can be tensioned against an abutment, the abutment having a guide element engaging in an arcuate guideway, and after loosening the tensioning means the same can be pivoted along the guideway from the vertical tensioning position into a release position is.
  • a tensioning means designed as a tensioning screw
  • a nut that can be screwed along the tensioning screw can be tensioned against the abutment, the guideway being designed as a backdrop into which the guide element, which is designed as a guide bolt and which is fastened to the abutment, engages.
  • the guideway expediently has a stop to limit the pivoting movements of the clamping screw.
  • the longitudinal movement of the clamping screw is also advantageously limited by a stop.
  • FIG. 1 shows the fastening device for the converter base in the clamping position
  • Fig. 2 shows a section along the line 11-11 in Fig. 1
  • Figs. 3 and 4 show successive positions of the clamping screw and the clamping lever in the release position.
  • the converter base denoted by 1 is fastened with clamping levers 2 and clamping screws 3 to a support structure 5 fastened to the converter casing 4.
  • the clamping screw 3 is pivotally connected to the clamping lever 2 by a hinge pin 6 and guided with its threaded shaft by an abutment 7 with play.
  • the clamping screw can be tightened with the nut 8 relative to the abutment 7.
  • guide pins 9, 9 ' are provided on both sides, which are slidable in the slot or link guides 10, 10' attached to the support structure 5.
  • the clamping nut 8 is tightened against the abutment 7, the clamping screw 3 being in the vertical position and the front end of the clamping lever 2 resting against the converter base 1.
  • the nut 8 is loosened, the tensioning lever 2 loosening.
  • the clamping screw 3 can be pivoted into the position shown in FIG. 3, the bolts 9; 9 'are guided in the slot guides 10, 10'.
  • the converter base 1 is inserted and fastened in the reverse order.
  • the slot guide is expediently provided with stops 13, 13 'to limit the pivoting movement.
  • the clamping screw can also have stops 14, 14 'to limit their longitudinal movement.
  • the converter base fastening device shown can be modified in various ways; it would be e.g. It is possible to design the hinge pin 6 as a guide pin instead of the guide pins 9, 9 'and to guide it in a guide track provided on the support structure 5.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Clamps And Clips (AREA)

Description

Die Erfindung betrifft einen Konverter mit einem abnehmbaren Boden, der mittels einer Anzahl um seinen Umfang angeordneter, wippenförmig ausgebildeter Spannhebel an dem Konvertermantel bzw. an einer damit verbundenen Stützkonstruktion befestigt ist, wobei die Spannhebel aus der bzw. in die Eingriffs-. stellung mit dem Boden verschiebbar sind.The invention relates to a converter with a removable bottom, which is fastened by means of a number of rocker-shaped tension levers arranged around its circumference to the converter jacket or to a supporting structure connected to it, the tension levers coming from or into the engagement. position can be moved with the floor.

Um bei dieser Konstruktion den Boden mit nur wenig freien Raum beanspruchenden Mitteln befestigen und Formabweichungen des Bodens berücksichtigen zu können, wurde nach einem noch nicht zum Stand der Technik gehörenden Vorschlag (DE-A-2 737 960) vorgesehen, daß die dem Konvertermantel zugewandten Enden der Spannhebel gegen den Konvertermantel bzw. gegen die Stützkonstruktion durch Spannmittel, Insbesondere Spannschrauben abgestützt sind.In order to be able to fasten the floor with only a little free space in this construction and to be able to take shape deviations of the floor into account, it was provided according to a proposal which is not yet part of the prior art (DE-A-2 737 960) that the ends facing the converter jacket the clamping lever is supported against the converter jacket or against the supporting structure by clamping means, in particular clamping screws.

Da jedoch die Arbeitsbedingungen im Bereich des Konverterbodens wegen schlechter Zugänglichkeit, Hitze, Staub usw. ungünstig sind, besteht das Bestreben, die zum Lösen und Befestigen des Konverterbodens erforderlichen Manipulationen und den damit verbundenen Kraftaufwand auf ein Minimum zu reduzieren.However, since the working conditions in the area of the converter floor are unfavorable due to poor accessibility, heat, dust, etc., efforts are being made to minimize the manipulations required for loosening and fastening the converter floor and the associated expenditure of force.

Die Erfindung betrifft eine Verbesserung bzw. weitere Ausbildung der oben angeführten Konstrukticn. Die Aufgabe besteht darin, eine Längsverschiebung des Spannhebels mit geringem Kraftaufwand durchzuführen, indem das Spannmittel sowohl zum Spannen als auch zum Freigeben des Spannhebels aus der Haltestellung verwendet werden kann.The invention relates to an improvement or further training of the above-mentioned construction. The object is to carry out a longitudinal displacement of the tensioning lever with little effort by using the tensioning means both for tensioning and for releasing the tensioning lever from the holding position.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das mit dem Spannhebel gelenkig verbundene Spannmittel gegen ein Widerlager spannbar ist, wobei das Wiederlager ein in eine bogenförmige Führungsbahn eingreifendes Führungselement aufweist, und nach Lösen des Spannmittels dasselbe entlang der Führungsbahn aus der vertikalen Spannstellung in eine Freigabestellung schwenkbar ist.This object is achieved in that the clamping means articulated with the tensioning lever can be tensioned against an abutment, the abutment having a guide element engaging in an arcuate guideway, and after loosening the tensioning means the same can be pivoted along the guideway from the vertical tensioning position into a release position is.

Nach einer bevorzugten Ausführungsform ist bei einem als Spannschraube ausgebildeten Spannmittel eine entlang der Spannschraube verschraubbare Mutter gegen das Widerlager spannbar, wobei die Führungsbahn als Kulisse ausgebildet ist, in die das als Führungsbolzen ausgebildete Führungselement, welches am Widerlager befestigt ist, eingreift.According to a preferred embodiment, in the case of a tensioning means designed as a tensioning screw, a nut that can be screwed along the tensioning screw can be tensioned against the abutment, the guideway being designed as a backdrop into which the guide element, which is designed as a guide bolt and which is fastened to the abutment, engages.

Zweckmäßig weist die Führungsbahn zur Begrenzung der Schwenkbewegungen der Spannschraube einen Anschlag auf. Vorteilhaft ist auch die Längsbewegung der Spannschraube durch einen Anschlag begrenzt.The guideway expediently has a stop to limit the pivoting movements of the clamping screw. The longitudinal movement of the clamping screw is also advantageously limited by a stop.

Eine bevorzugte Ausführungsform der Erfindung ist in der Zeichnung dargestellt, wobei Fig. 1 die Befestigungseinrichtung für den Konverterboden in der Spannstellung zeigt; Fig. 2 gibt einen Schnitt nach der Linie 11-11 in Fig. 1 wieder und die Fig. 3 und 4 zeigen aufeinanderfolgende Positionen der Spannschraube und des Spannhebels in der Freigabestellung.A preferred embodiment of the invention is shown in the drawing, in which Fig. 1 shows the fastening device for the converter base in the clamping position; Fig. 2 shows a section along the line 11-11 in Fig. 1 and Figs. 3 and 4 show successive positions of the clamping screw and the clamping lever in the release position.

Der mit 1 bezeichnete Konverterboden ist mit Spannhebeln 2 und Spannschrauben 3 an einer am Konvertermantel 4 befestigten Stützkonstruktion 5 befestigt. Die Spannschraube 3 ist mit dem Spannhebel 2 durch einen Gelenkbolzen 6 gelenkig verbunden und mit ihrem Gewindeschaft durch ein Widerlager 7 mit Spiel geführt. Die Spannschraube ist mit der Mutter 8 gegenüber dem Widerlager 7 spannbar. An dem Widerlager 7 sind beiderseits Führungsbolzen 9, 9' vorgesehen, die in den an der Stützkonstruktion 5 befestigten Schlitz- bzw. Kulissenführungen 10, 10' gleitbar sind.The converter base denoted by 1 is fastened with clamping levers 2 and clamping screws 3 to a support structure 5 fastened to the converter casing 4. The clamping screw 3 is pivotally connected to the clamping lever 2 by a hinge pin 6 and guided with its threaded shaft by an abutment 7 with play. The clamping screw can be tightened with the nut 8 relative to the abutment 7. On the abutment 7 guide pins 9, 9 'are provided on both sides, which are slidable in the slot or link guides 10, 10' attached to the support structure 5.

In den Fig. 1 und 2 ist die Spannmutter 8 gegen das Widerlager 7 angezogen, wobei sich die Spannschraube 3 in vertikaler Stellung befindet und das vordere Ende des Spannhebels 2 gegen den Konverterboden 1 anliegt. Zum Lösen des Konverterbodens wird die Mutter 8 gelöst, wobei sich der Spannhebel 2 lockert. Hierauf kann die Spannschraube 3 in die in Fig. 3 dargestellte Stellung geschwenkt werden, wobei die Bolzen 9; 9' in den Schlitzführungen 10, 10' geführt werden.1 and 2, the clamping nut 8 is tightened against the abutment 7, the clamping screw 3 being in the vertical position and the front end of the clamping lever 2 resting against the converter base 1. To loosen the converter base, the nut 8 is loosened, the tensioning lever 2 loosening. Then the clamping screw 3 can be pivoted into the position shown in FIG. 3, the bolts 9; 9 'are guided in the slot guides 10, 10'.

In Fig. 4 ist die zweite Position der Freigabestellung gezeigt, bei der durch Anziehen der Mutter 8 der Spannhebel 2 aus der in der Stützkonstruktion 5 befindlichen Öffnung 11 herausgezogen wird, wobei seine Unterseite auf einer Gleitfläche 12 gleitet.4 shows the second position of the release position, in which the tensioning lever 2 is pulled out of the opening 11 in the support structure 5 by tightening the nut 8, its underside sliding on a sliding surface 12.

Das Einsetzen und Befestigen des Konverterbodens 1 geschieht in umgekehrter Reihenfolge. Zweckmäßig ist die Schlitzführungzur Begrenzung der Schwenkbewegung mit Anschlägen 13, 13' versehen. Um rasch die richtigen Positionen des Spannhebels einstellen zu können, kann auch die Spannschraube Anschläge 14, 14' zur Begrenzung ihrer Längsbewegung aufweisen.The converter base 1 is inserted and fastened in the reverse order. The slot guide is expediently provided with stops 13, 13 'to limit the pivoting movement. In order to be able to quickly set the correct positions of the clamping lever, the clamping screw can also have stops 14, 14 'to limit their longitudinal movement.

Die dargestellte Konverterbodenbefestigungseinrichtung kann in verschiedener Weise modifiziert werden; so wäre es z.B. möglich, anstelle der Führungsbolzen 9, 9' den Gelenkbolzen 6 als Führungsbolzen auszubilden und diesen in einer an der Stützkonstruktion 5 vorgesehenen Führungsbahn zu führen.The converter base fastening device shown can be modified in various ways; it would be e.g. It is possible to design the hinge pin 6 as a guide pin instead of the guide pins 9, 9 'and to guide it in a guide track provided on the support structure 5.

Claims (4)

1 Converter having a removable bottom (1) which is fastened to the converter jacket (4) or to a supporting construction (5) connected therewith, by means of a number of clamping levers (2) arranged about its circumference and designed in a rocker-shaped manner, the clamping levers being displaceable out of and into the engagement position with the bottom (1) and the ends of the clamping levers that face the converter jacket being supported relative to the converter jacket or to the supporting construction by clamping means (3), in particular clamping screws, characterised in that the clamping means (3) articulately connected with the clamping lever is clampable against an abutment (7), which abutment comprises a guiding element (9, 9') engaging in an arcuate guideway (10, 10') and, after release of the clamping means, the latter is pivotable along the. guideway from the vertical clamping position into a release position.
2. Converter according to claim 1, characterised in that, with one of the clamping means designed as a clamping screw (3), a nut (8) capable of being bolted along the clamping screw is clampable against the abutment (7), the guideway (10, 10') being designed as a link, into which the guiding element designed as a guiding pin (9, 9') which is fastened to the abutment engages.
3. Converter according to claim 1 or 2, characterised in that the guideway (10)-comprises a stop (13, 13') for delimiting the pivotal movements of the clamping screw (3).
4. Converter according to claims 1 to 3, characterised in that also the longitudinal movements of the clamping screw (3) are delimited by a stop (14, 14').
EP79100887A 1978-04-05 1979-03-23 Converter with a detachable floor Expired EP0004613B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2382/78 1978-04-05
AT238278A AT354491B (en) 1978-04-05 1978-04-05 CONVERTER WITH A REMOVABLE BASE

Publications (2)

Publication Number Publication Date
EP0004613A1 EP0004613A1 (en) 1979-10-17
EP0004613B1 true EP0004613B1 (en) 1982-09-22

Family

ID=3533345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100887A Expired EP0004613B1 (en) 1978-04-05 1979-03-23 Converter with a detachable floor

Country Status (5)

Country Link
US (1) US4239193A (en)
EP (1) EP0004613B1 (en)
JP (1) JPS54136507A (en)
AT (1) AT354491B (en)
DE (1) DE2963710D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07105711B2 (en) * 1990-04-26 1995-11-13 株式会社東芝 Input circuit
DE102009056219A1 (en) * 2009-11-28 2011-06-01 Sms Siemag Ag Fixing system for metallurgical vessels

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE11361C (en) * R. M. DAELEN in Düsseldorf Innovations to Bessemer pears
DE1261144B (en) * 1964-05-21 1968-02-15 Gutehoffnungshuette Sterkrade Device for fastening the vessel bottom which is arranged to be exchangeable on the jacket of a metallurgical vessel, in particular a converter
BE758794A (en) * 1970-10-20 1971-04-16 Voest Ag CONVERTER WITH REMOVABLE BOTTOM
US3851865A (en) * 1973-07-16 1974-12-03 Pennsylvania Engineering Corp Bottom clamp for obm vessels
DE2522036C2 (en) * 1975-05-17 1976-09-09 Didier Werke Ag THUS FLOOR, IN PARTICULAR FOR CONVERTER
AT361525B (en) * 1976-10-21 1981-03-10 Voest Alpine Ag CONVERTER WITH A REMOVABLE BASE

Also Published As

Publication number Publication date
DE2963710D1 (en) 1982-11-04
JPS6115925B2 (en) 1986-04-26
AT354491B (en) 1980-01-10
JPS54136507A (en) 1979-10-23
US4239193A (en) 1980-12-16
EP0004613A1 (en) 1979-10-17
ATA238278A (en) 1979-03-15

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