DE832769C - Process for the production of high-quality cast iron types in a coke-operated cupola furnace - Google Patents

Process for the production of high-quality cast iron types in a coke-operated cupola furnace

Info

Publication number
DE832769C
DE832769C DEP1197A DE0001197A DE832769C DE 832769 C DE832769 C DE 832769C DE P1197 A DEP1197 A DE P1197A DE 0001197 A DE0001197 A DE 0001197A DE 832769 C DE832769 C DE 832769C
Authority
DE
Germany
Prior art keywords
cast iron
coke
production
cupola furnace
quality cast
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
DEP1197A
Other languages
German (de)
Inventor
Dr-Ing Eugen Piwowarsky
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.)
EUGEN PIWOWARSKY DR ING
Original Assignee
EUGEN PIWOWARSKY DR ING
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 EUGEN PIWOWARSKY DR ING filed Critical EUGEN PIWOWARSKY DR ING
Priority to DEP1197A priority Critical patent/DE832769C/en
Application granted granted Critical
Publication of DE832769C publication Critical patent/DE832769C/en
Expired legal-status Critical Current

Links

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
    • C21C1/00—Refining of pig-iron; Cast iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Description

Verfahren zur Herstellung hochwertiger Gußeisensorten im mit Koks betriebenen Kupolofen Alle Bestrebungen zur Schaffung eines hochwertigen Gußeisens laufen bekanntlich auf eine Erhöhung der Überhitzungstemperatur des anfallenden Rinneneisens hinaus, weil diese die Grundlage der Herstellung von mechanisch hochfestem Gußeisen mit günstiger Graphitausbildung ist. Beim Kupolofenschmelzen.ist es jedoch überaus schwer, die notwendigen Überhitzungstemperaturen des anfallenden Rinneneisens zu erreichen. Es sind betriebstechnisch sehr einfache und auch wirtschaftlich sehr billige Verfahren in Vorschlag gebracht worden, durch Kombination von Warmwind mit einer wirksamen Koksumkrustung bzw. durch Kombination einer wirksamen Koksumkrustung mit der Verwendung sauerstoffangereicherten Windes die Wirtschaftlichkeit des Kupolofenschmelzens zu erhöhen und gleichzeitig die Qualität des anfallenden Rinneneisens wesentlich zu steigern.Process for the production of high quality cast iron with coke operated cupola furnace All efforts to create a high quality cast iron are known to run on an increase in the overheating temperature of the resulting Gutter iron addition, because this is the basis of the manufacture of mechanically high-strength Cast iron with favorable graphite training is. With cupola smelting, however, it is extremely difficult, the necessary overheating temperatures of the resulting channel iron to reach. From an operational point of view, they are very simple and also very economical cheap method has been proposed by combining warm wind with an effective coke encrustation or a combination of an effective coke encrustation with the use of oxygen-enriched wind, the profitability of cupola smelting to increase and at the same time the quality of the resulting channel iron significantly to increase.

Erfindungsgemäß hat sich eine weitere Kombination als überaus wirkungsvoll erwiesen, nämlich die Kombination von Waimwind mit sauerstoffangereichertem Gebläsewind. Diese Kombination ist ebenfalls sehr wirtschaftlich und führt zu einem heißen Rinneneisen mit all den sonstigen betriebstechnischen Vorteilen einer Windvorwärmung bzw. einer Sauerstoffanreicherung des Windes. Die Vorteile dieser Kombination werden aber noch erheblich gesteigert, wenn man sie verbindet mit der Verwendung von zementumkrustetem Koks, wofern nur die Umkrustung eine so wirksame ist, daß das Umkrustungsmaterial erst in der Schmelzzone abschmilzt oder sintert, im übrigierr aber bis zum Niedergehen in der Schmelzzone dem Koks fest anhaftet. Hierdurch wird eine vorzeitige Kohlensäurereduktion weitgehend verhindert mit dem Erfolg einer wesentlich höheren Temperatur in der Schmelzzone und einer gesteigerten Temperatur des anfallenden Rinneneisens.According to the invention, another combination has proven to be extremely effective proven, namely the combination of Waimwind with oxygen-enriched blower wind. This combination is also very economical and results in a hot gutter iron with all the other operational advantages of wind preheating respectively. oxygen enrichment of the wind. The advantages of this combination will be but increased considerably if you combine it with the use of cement-encrusted Coke, provided the encrustation is so effective that the encrustation material only melts or sinters in the melting zone, but in the rest of the area until it goes down firmly adheres to the coke in the melting zone. This results in a premature reduction in carbon dioxide levels largely prevented with the success of a much higher temperature in the Melting zone and an increased temperature of the resulting channel iron.

Die vorstehend gekennzeichneten Arbeitsweisen sind grundsätzlich für alle mit Koks betriebenen Schachtöfen zum Erschmelzen von metallischen und nichtmetallischen Rohstoffen geeignet.The working methods identified above are basically for all shaft furnaces operated with coke for melting metallic and non-metallic ones Suitable for raw materials.

Claims (1)

PATEN TANSPRI`CtiE: i. Verfahren zur Herstellung hochwertiger Gußeisensorten, insbesondere von Grauguß, Hartguß und Temperrohguß, im mit Koks betriebenen Kupolofen. gekennzeichnet durch die Kombination einer an sich bekannten Windvorwärmung mit der Verwendung von sauerstoffangereicherten Wind. z. Verfahren nach Anspruch i. dadurch gekennzeichnet, daß der Satzkoks mit einem wirksamen Schutzmittel gegen eine vorzeitige Kohlensäurereduktion umgeben wird.PATENT APPLICATION: i. Process for the production of high quality cast iron types, especially of gray cast iron, chilled cast iron and malleable cast iron, in a cupola furnace operated with coke. characterized by the combination of a known wind preheating with the use of oxygenated wind. z. Method according to claim i. characterized in that the set coke with an effective protective agent against a premature carbonic acid reduction is surrounded.
DEP1197A 1950-04-04 1950-04-04 Process for the production of high-quality cast iron types in a coke-operated cupola furnace Expired DE832769C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP1197A DE832769C (en) 1950-04-04 1950-04-04 Process for the production of high-quality cast iron types in a coke-operated cupola furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP1197A DE832769C (en) 1950-04-04 1950-04-04 Process for the production of high-quality cast iron types in a coke-operated cupola furnace

Publications (1)

Publication Number Publication Date
DE832769C true DE832769C (en) 1952-02-28

Family

ID=5647587

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP1197A Expired DE832769C (en) 1950-04-04 1950-04-04 Process for the production of high-quality cast iron types in a coke-operated cupola furnace

Country Status (1)

Country Link
DE (1) DE832769C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973695C (en) * 1950-04-27 1960-05-05 Union Carbide Corp Process for the production of low-sulfur and low-phosphorus deoxidized cast iron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973695C (en) * 1950-04-27 1960-05-05 Union Carbide Corp Process for the production of low-sulfur and low-phosphorus deoxidized cast iron

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