AT393026B - FIRE RESISTANT LINING FOR A CONVERTER - Google Patents

FIRE RESISTANT LINING FOR A CONVERTER Download PDF

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Publication number
AT393026B
AT393026B AT3092/87A AT309287A AT393026B AT 393026 B AT393026 B AT 393026B AT 3092/87 A AT3092/87 A AT 3092/87A AT 309287 A AT309287 A AT 309287A AT 393026 B AT393026 B AT 393026B
Authority
AT
Austria
Prior art keywords
lining
converter
refractory
casing
composite material
Prior art date
Application number
AT3092/87A
Other languages
German (de)
Other versions
ATA309287A (en
Original Assignee
Fischer Ag Georg
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 Fischer Ag Georg filed Critical Fischer Ag Georg
Publication of ATA309287A publication Critical patent/ATA309287A/en
Application granted granted Critical
Publication of AT393026B publication Critical patent/AT393026B/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/42Constructional features of converters
    • C21C5/44Refractory linings
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00Refining of pig-iron; Cast iron
    • C21C1/10Making spheroidal graphite cast-iron

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Building Environments (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Glass Compositions (AREA)

Claims (2)

AT 393 026 B Die Erfindung betrifft die feuerfeste Auskleidung für einen Konverter gemäß dem Oberbegriff des erfindungsgemäßen Anspruchs 1. Die bisherige feuerfeste Auskleidung eines Konverters, bei welchem die Basisschmelze mit Reinmagnesium behandelt wird, besteht aus einem feuerfesten Material, welches zwischen die Ummantelung des Konverters und die entsprechenden Schablonen gestampft oder durch Vibrieren verfestigt wird. Diese Ausführung hat einige Nachteile: sie ist zeitaufwendig, das feuerfeste Material muß man nachher trocknen und sintern, vor dem Gebrauch des Konverters hoch vorheizen, aus diesem Grund auch einen Reserve-Konverter vorgeheizt bereit halten, und die Oberflächentemperatur des feuerfesten Materials bleibt trotz einer intensiven Arbeitsweise relativ niedrig, was zu Schlackenansätzen führt Aufgabe der vorliegenden Erfindung ist es, die beschriebenen Nachteile zu eliminieren und eine wirtschaftliche Auskleidung für einen Konverter vorzusehen. Diese Aufgabe wird durch die Lehre des Anspruches 1 gelöst Besonders kostengünstig wird die Ausgestaltung der Auskleidung, wenn der Bodenteil der Auskleidung mit der Kammerwand des Konverters einen vorfabrizierten Bauteil bildet Es zeigen: Fig. 1 einen Konverter mit vorfabrizierten Teilen feuerfester Auskleidung, Fig. 2 das Detail (A) von Fig. 1. Die Ummantelung (4) eines Konverters besteht z. B. aus einem Vorderteil (1), einem Mittelteil (2) und einem Bodenteil (3). In diese Teile (1,2,3) der Ummantelung (4) sind entsprechende vorfabrizierte Teile (5,6,7) aus hochwertigem feuerfestem Verbundmaterial in Führungen eingeschoben. Dadurch entfällt das zeitaufwendige Stampfen mittels Schablonen, und ein beschädigter Teil der Auskleidung läßt sich rasch auswechseln. Das keramische feuerfeste Verbundmaterial (9) besteht üblicherweise aus ein»' inneren Schicht (9a), die eine hohe, der Temperatur der Schmelze im wesentlichen entsprechende Oberflächentemperatur erlaubt und einer Schicht (9b), welche gut isoliert Dadurch werden die Schlackenansätze reduziert. Weil das keramische Verbundmaterial (9) vorgesintert ist, reicht nur eine kurze Vorheizung aus, wobei das Trocknen und Sintern entfällt. Für das Zusammenfügen des keramischen Verbundmaterials (9) genügt je eine relativ dünne Schicht (9a, 9b), welche durch die Basisauskleidung (10), z. B. aus einem feuerfesten Beton, gestützt wird. Nach dem Einschieben der vorfabrizierten Teile (5,6,7) wird der Raum zwischen dem keramischen Verbandmaterial (9) und der Basisauskleidung (10) z. B. mit Sand (11) ausgefüllt Als eine weitere Variante besteht die Möglichkeit, den Raum zwischen der inneren vorfabrizierten, z. B. aus 3 Segmenten bestehenden Schicht (9a) aus hochwertigem, feuerfestem Material, welches eine hohe, der Schmelze im wesentlichen entsprechende Oberflächentemperatur erlaubt und der Ummantelung (4) mit einem Isoliermaterial, z. B. aus mit Wasserglas gebundener Schamotte, auszugießen. PATENTANSPRÜCHE 1. Feuerfeste Auskleidung für einen Konverter, wobei die Auskleidung aus vorfabrizierten Teilen aus keramischem Verbundmaterial besteht, dadurch gekennzeichnet, daß zwischen der metallischen Ummantelung (4) des Konverters und den vorfabrizierten Teilen (5,6,7) eine zusätzliche Basisauskleidung (10) vorgesehen ist und die vorfabrizierten Teile (5, 6, 7) in die mit der Basisauskleidung (10) versehene Ummantelung (5) des Konverters einschiebbar sind.AT 393 026 B The invention relates to the refractory lining for a converter according to the preamble of claim 1. The previous refractory lining of a converter, in which the base melt is treated with pure magnesium, consists of a refractory material which is between the jacket of the converter and the corresponding templates are stamped or solidified by vibration. This version has some disadvantages: it is time-consuming, the refractory material has to be dried and sintered afterwards, preheated before using the converter, for this reason a preheated converter must also be kept ready, and the surface temperature of the refractory material remains despite an intensive one Operation relatively low, which leads to slag approaches. The object of the present invention is to eliminate the disadvantages described and to provide an economical lining for a converter. This object is achieved by the teaching of claim 1. The design of the lining is particularly cost-effective if the bottom part of the lining forms a prefabricated component with the chamber wall of the converter. FIG. 1 shows a converter with prefabricated parts of refractory lining, FIG. 2 shows the Detail (A) of Fig. 1. The casing (4) of a converter consists, for. B. from a front part (1), a middle part (2) and a bottom part (3). Corresponding prefabricated parts (5, 6, 7) made of high-quality refractory composite material are inserted into guides in these parts (1, 2, 3) of the casing (4). This eliminates the time-consuming stamping using templates and a damaged part of the lining can be replaced quickly. The ceramic refractory composite material (9) usually consists of an inner layer (9a), which allows a high surface temperature, which essentially corresponds to the temperature of the melt, and a layer (9b), which is well insulated. This reduces the amount of slag. Because the ceramic composite material (9) is pre-sintered, only a short preheating is sufficient, and drying and sintering are not necessary. For the assembly of the ceramic composite material (9), a relatively thin layer (9a, 9b) is sufficient, which through the base lining (10), for. B. is supported from a refractory concrete. After inserting the prefabricated parts (5,6,7) the space between the ceramic dressing material (9) and the base lining (10) z. B. filled with sand (11) As a further variant, there is the possibility of prefabricating the space between the inner, z. B. consisting of 3 segments layer (9a) made of high quality, refractory material, which allows a high, the melt substantially corresponding surface temperature and the casing (4) with an insulating material, for. B. pour out chamotte bound with water glass. 1. Refractory lining for a converter, the lining consisting of prefabricated parts made of ceramic composite material, characterized in that an additional basic lining (10) is located between the metallic casing (4) of the converter and the prefabricated parts (5, 6, 7). is provided and the prefabricated parts (5, 6, 7) can be inserted into the casing (5) of the converter provided with the basic lining (10). 2. Auskleidung nach Anspruch 1, dadurch gekennzeichnet, daß der Bodenteil (7) der Auskleidung mit der Kammerwand (8) des Konverters einen vorfabrizierten Bauteil bildet. Hiezu 1 Blatt Zeichnung -2-2. Lining according to claim 1, characterized in that the bottom part (7) of the lining with the chamber wall (8) of the converter forms a prefabricated component. For this 1 sheet drawing -2-
AT3092/87A 1987-01-15 1987-11-25 FIRE RESISTANT LINING FOR A CONVERTER AT393026B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH134/87A CH671955A5 (en) 1987-01-15 1987-01-15

Publications (2)

Publication Number Publication Date
ATA309287A ATA309287A (en) 1990-12-15
AT393026B true AT393026B (en) 1991-07-25

Family

ID=4180021

Family Applications (1)

Application Number Title Priority Date Filing Date
AT3092/87A AT393026B (en) 1987-01-15 1987-11-25 FIRE RESISTANT LINING FOR A CONVERTER

Country Status (17)

Country Link
JP (1) JPS63176409A (en)
KR (1) KR880009135A (en)
CN (1) CN88100005A (en)
AT (1) AT393026B (en)
AU (1) AU600786B2 (en)
CH (1) CH671955A5 (en)
CS (1) CS268696B2 (en)
DE (1) DE3740521A1 (en)
ES (1) ES2005736A6 (en)
FI (1) FI880155A (en)
FR (1) FR2609792A1 (en)
GB (1) GB2199930A (en)
IT (1) IT1215696B (en)
NO (1) NO880134L (en)
PL (1) PL270115A1 (en)
YU (1) YU216187A (en)
ZA (1) ZA88277B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0703297T3 (en) * 1994-09-22 1999-08-16 Metallurg Hafner & Polte Mit B Immersion container for introducing pure magnesium into a treatment vessel and use of this immersion container
DE102005061291B4 (en) * 2005-12-20 2008-01-03 Heraeus Electro-Nite International N.V. Ceramic perforated brick and metallurgical vessel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB754533A (en) * 1953-02-03 1956-08-08 Crespi Giovanni A method of forming refractory linings in furnaces and a refractory block for use therein
GB1017888A (en) * 1963-09-25 1966-01-26 Corhart Refractories Co Metallurgical converter
DE1281464B (en) * 1961-08-21 1968-10-31 Harbison Walker Refractories Refractory lining for oxygen steel converter
GB1424826A (en) * 1972-05-23 1976-02-11 Veitscher Magnesitwerke Ag Fired refractory brick
GB2109517A (en) * 1981-09-09 1983-06-02 Asea Ab Improvements in brick-formed basic refractory linings for metallurgical furnaces
US4438906A (en) * 1983-06-20 1984-03-27 Foseco International Limited Formers for lining metallurgical vessels
GB2156057A (en) * 1984-03-16 1985-10-02 Foseco Trading Ag Tundish linings

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684842A (en) * 1947-08-01 1954-07-27 Crespi Refractory block for electric arc furnace lining
GB796703A (en) * 1955-11-21 1958-06-18 Zirconal Ltd Improvements in or relating to refractory materials
DE1018627B (en) * 1955-12-01 1957-10-31 Oesterr Alpine Montan converter
US3148238A (en) * 1961-08-21 1964-09-08 Harbison Walker Refractories Oxygen converter linings
GB1176687A (en) * 1967-01-26 1970-01-07 Gen Electric & English Elect Improvements in or relating to Apparatus for use in contact with Corrosive Fluids.
DE1815214C3 (en) * 1968-01-26 1975-06-19 Georg Fischer Ag, Schaffhausen (Schweiz) 03.12.68 Switzerland 17961-68 Tiltable treatment vessel for treating metal melts by introducing vaporizable additives, in particular for producing iron-carbon cast materials with spheroidal graphite by introducing pure magnesium into the melt contained in the vessel Georg Fischer AG, Schaffhausen (Switzerland)
IT1016281B (en) * 1973-07-27 1977-05-30 Didier Werke Ag IMPROVEMENT IN REFRACTORY FOR GAS MEABLES
GB1544637A (en) * 1975-11-10 1979-04-25 Foseco Trading Ag Lining of molten metal containers
GB2131139B (en) * 1982-12-01 1986-07-09 Foseco Trading Ag Refractory heat-insulating slabs

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB754533A (en) * 1953-02-03 1956-08-08 Crespi Giovanni A method of forming refractory linings in furnaces and a refractory block for use therein
DE1281464B (en) * 1961-08-21 1968-10-31 Harbison Walker Refractories Refractory lining for oxygen steel converter
GB1017888A (en) * 1963-09-25 1966-01-26 Corhart Refractories Co Metallurgical converter
GB1424826A (en) * 1972-05-23 1976-02-11 Veitscher Magnesitwerke Ag Fired refractory brick
GB2109517A (en) * 1981-09-09 1983-06-02 Asea Ab Improvements in brick-formed basic refractory linings for metallurgical furnaces
US4438906A (en) * 1983-06-20 1984-03-27 Foseco International Limited Formers for lining metallurgical vessels
GB2156057A (en) * 1984-03-16 1985-10-02 Foseco Trading Ag Tundish linings

Also Published As

Publication number Publication date
AU600786B2 (en) 1990-08-23
YU216187A (en) 1989-08-31
ES2005736A6 (en) 1989-03-16
DE3740521A1 (en) 1988-07-28
GB2199930A (en) 1988-07-20
IT1215696B (en) 1990-02-22
FR2609792A1 (en) 1988-07-22
FI880155A0 (en) 1988-01-14
PL270115A1 (en) 1988-09-29
AU1017388A (en) 1988-07-21
CH671955A5 (en) 1989-10-13
DE3740521C2 (en) 1989-11-02
GB8800611D0 (en) 1988-02-10
CS268696B2 (en) 1990-04-11
ATA309287A (en) 1990-12-15
IT8819059A0 (en) 1988-01-13
NO880134D0 (en) 1988-01-14
NO880134L (en) 1988-07-18
FI880155A (en) 1988-07-16
CN88100005A (en) 1988-07-27
ZA88277B (en) 1988-07-15
JPS63176409A (en) 1988-07-20
CS17888A2 (en) 1989-07-12
KR880009135A (en) 1988-09-14

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