DE682331C - Process for the production of refractory bricks containing carbon - Google Patents

Process for the production of refractory bricks containing carbon

Info

Publication number
DE682331C
DE682331C DED76726D DED0076726D DE682331C DE 682331 C DE682331 C DE 682331C DE D76726 D DED76726 D DE D76726D DE D0076726 D DED0076726 D DE D0076726D DE 682331 C DE682331 C DE 682331C
Authority
DE
Germany
Prior art keywords
production
refractory bricks
containing carbon
bricks containing
stones
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
DED76726D
Other languages
German (de)
Inventor
Hermann Woll
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.)
Dortmund Hoerder Huettenverein AG
Original Assignee
Dortmund Hoerder Huettenverein AG
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 Dortmund Hoerder Huettenverein AG filed Critical Dortmund Hoerder Huettenverein AG
Priority to DED76726D priority Critical patent/DE682331C/en
Application granted granted Critical
Publication of DE682331C publication Critical patent/DE682331C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Verfahren zur Herstellung kohlenstoffhaltiger feuerfester Steine Es ist bekannt, feuerfeste Steine unter Zusatz von Graphit oder Kokspulver herzustellen. Solche Steine, die zur Vermeidung des Ausbrennens des Kohlenstoffs in reduzierender Atmosphäre gebrannt werden, weisen verschiedene Vorteile auf, wie beispielsweise bessere Wärmeleitfähigkeit, Erhöhung der Druckerweichung, Widerstand gegen Schlakkenangriff, sowie in manchen Fällen eine größere Temperaturwechselbeständigkeit. Außerdem wird der .Stein dichter und säurebeständiger. Solche Steine wurden bisher wegen ihrer guten Eigenschaften weitgehend zu Stopfen und Ausgüssen für die Gießpfannen in der Stahlindustrie verwendet. Diese Steine sind jedoch wegen der Notwendigkeit, Graphit oder hochwertigen Koks verwenden zu müssen, sehr teuer.Process for the manufacture of carbonaceous refractory bricks Es it is known to produce refractory bricks with the addition of graphite or coke powder. Such stones that help avoid burning out the carbon in reducing Atmosphere have various advantages such as better thermal conductivity, increase in pressure softening, resistance to slag attack, and in some cases greater resistance to temperature changes. Also will the .stone denser and more acid-resistant. Such stones were previously because of her good properties largely to stoppers and spouts for the ladles in the Steel industry used. However, these stones are because of the need for graphite or having to use high quality coke is very expensive.

Erfindungsgemäß gelingt es in überraschend einfacher Weise, kohlenstoffhaltige Steine herzustellen, die die obengenannten Eigenschaften erreichen, unter Verwendung von Waschbergen, also einem heimischen minderwertigen Rohstoff, der in großen Mengen vorhanden ist. So wurden beispielsweise hochwertige, Schamottesteine unter Zusatz von 5 bis 50 °/o Waschbergen als Magerungsmittel hergestellt. Eine Durchschnittsanalyse der Waschberge zeigt etwa folgende Zusammensetzung: rund 35 °% Si 0, 2o % Al, 0,3, 4 °/o Fe, Q., 5 % Ca 0-Mg O, 3 °/o S, 5 °/o Alkalien, Rest C.According to the invention, it is possible in a surprisingly simple manner to produce carbon-containing stones which achieve the above-mentioned properties using wash mountains, that is to say a domestic inferior raw material that is available in large quantities. For example, high-quality fireclay bricks were produced with the addition of 5 to 50 per cent. Washtubs as a lean agent. An average analysis of the wash mountains shows roughly the following composition: around 35% Si 0, 2o% Al, 0.3, 4% Fe, Q., 5% Ca 0-Mg O, 3% S, 5% o alkalis, remainder C.

Der Versatz zu einem sehr guten, zur Auskleidung von Roheisenpfannen, in denen das Roheisen mit Hilfe von Soda entschwefelt wird, geeigneten Schamottestein besteht beispielsweise aus: 5o % (Volumenprozent) Ahrweiler Pfannensteinton, 25 °/a (Volumenprozent ) Ahrweiler Schamotte, 25 °/o (Volu= menprozent) Waschbergen.The offset to a very good firebrick suitable for lining pig iron pans in which the pig iron is desulphurized with the help of soda consists, for example, of: 50 % (volume percent) Ahrweiler pan stone clay, 25 ° / a (volume percent) Ahrweiler chamotte, 25 ° / o (volume percent) wash mountains.

Je nach dem Verwendungszweck kann der Waschbergezusatz gesteigert werden.Depending on the intended use, the amount of wash mount can be increased will.

Das neue Verfahren läßt sich sinngemäß auch zur Herstellung von Stampfmassen anwenden.The new process can also be used for the production of ramming mixes use.

Claims (1)

PATENTANSPRUCH: Verfahren zum Herstellen kohlenstoffhaltiger feuerfester Steine durch Formen und Brennen in reduzierender Atmosphäre, dadurch gekennzeichnet, daß als kohlenstoffhaltiger Zusatz Waschberge verwendet werden.PATENT CLAIM: Process for producing carbonaceous refractories Stones by molding and firing in a reducing atmosphere, characterized by that wash mountains are used as a carbonaceous additive.
DED76726D 1937-12-02 1937-12-02 Process for the production of refractory bricks containing carbon Expired DE682331C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED76726D DE682331C (en) 1937-12-02 1937-12-02 Process for the production of refractory bricks containing carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED76726D DE682331C (en) 1937-12-02 1937-12-02 Process for the production of refractory bricks containing carbon

Publications (1)

Publication Number Publication Date
DE682331C true DE682331C (en) 1939-10-12

Family

ID=7062278

Family Applications (1)

Application Number Title Priority Date Filing Date
DED76726D Expired DE682331C (en) 1937-12-02 1937-12-02 Process for the production of refractory bricks containing carbon

Country Status (1)

Country Link
DE (1) DE682331C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922460C (en) * 1948-10-02 1955-01-17 Steinkohlenbergwerk Hannover H Shaped bodies made of carbon and ceramic materials and process for their production
DE1964433A1 (en) * 1969-12-23 1971-07-01 Stoecker & Kunz Gmbh Stopper and spout with added carbon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922460C (en) * 1948-10-02 1955-01-17 Steinkohlenbergwerk Hannover H Shaped bodies made of carbon and ceramic materials and process for their production
DE1964433A1 (en) * 1969-12-23 1971-07-01 Stoecker & Kunz Gmbh Stopper and spout with added carbon

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