DE421991C - Process for the production of hematite pig iron - Google Patents

Process for the production of hematite pig iron

Info

Publication number
DE421991C
DE421991C DEU8190D DEU0008190D DE421991C DE 421991 C DE421991 C DE 421991C DE U8190 D DEU8190 D DE U8190D DE U0008190 D DEU0008190 D DE U0008190D DE 421991 C DE421991 C DE 421991C
Authority
DE
Germany
Prior art keywords
production
pig iron
converter
steel
coke
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
DEU8190D
Other languages
German (de)
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.)
UNION DE CONSOMMATEURS DE PROD
Original Assignee
UNION DE CONSOMMATEURS DE PROD
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 UNION DE CONSOMMATEURS DE PROD filed Critical UNION DE CONSOMMATEURS DE PROD
Priority to DEU8190D priority Critical patent/DE421991C/en
Application granted granted Critical
Publication of DE421991C publication Critical patent/DE421991C/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)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Description

Verfahren zur Herstellung von Hämatitroheisen. Die Herstellung von Hämatitroheisen durch Rückkohlung von im Konverter gefrischtem, phosphorhaltigem Roheisen mit Hilfe von glühendem Koks ist bekannt. Hiervon ausgehend besteht die Erfindung in einer besonderen Art der Rückkohlung, die in einfacher `''eise die Herstellung eines gleichmäßigen Erzeugnisses ermöglicht.Process for the production of hematite hot iron. The manufacture of Hematite hot iron through recarburization of phosphorus-containing refined in the converter Pig iron with the help of glowing coke is known. Based on this, the Invention in a special kind of recarburization, which in simple `` '' eise the Making a uniform product possible.

Zu diesem Zweck wird der verblasene Stahl in eine Pfanne abgegossen, entschlackt und einem Konverter zugeführt, der rotglühenden Koks enthält, worauf der Stahl durch kurzes und wiederholtes Blasen innig mit dem Koks vermischt wird.For this purpose, the blown steel is poured into a pan, Purified and fed to a converter containing red-hot coke, whereupon the steel is intimately mixed with the coke by brief and repeated blowing.

Dieses Verfahren ermöglicht es auch, die gegebenenfalls noch benötigten Zusätze,-wie z. B. Ferrosilicium, in kaltem. Zustande in den Konverter selbst in größerer Menge einzuführen.This procedure also makes it possible to use the Additives, such as B. Ferrosilicon, in cold. Conditions in the converter itself in to introduce larger quantities.

Auf diese Weise erhält man ein Eisen, dessen Kohlenstoffgehalt zwischen demjenigen des Stahls und etwa q. Prozent schwanken kann.In this way an iron is obtained whose carbon content is between that of steel and about q. Percent can fluctuate.

Der Phosphor- und Schwefelgehalt ist der bei Hämatiteisen übliche.The phosphorus and sulfur levels are the same as those found in hematite irons.

Für die Herstellung von Roheisen mit hohem Silicium- oder Mangangehalt werden Zusätze in bedeutenden Mengen benötigt, deren Giewicht bis zu 1/15 desjenigen der behandelten Charge beträgt. Solche Zusätze können sonst nur nach vorheriger Schmelzung im Kupolofen gemacht werden.For the production of pig iron with a high silicon or manganese content additives are required in significant amounts, the weight of which is up to 1/15 of that of the batch treated. Such additions can otherwise only be made after prior notice Melting can be done in a cupola furnace.

Es ist ein besonderer Vorteil des neuen Verfahrens, daß die Zusätze kalt in den Konverter eingegeben werden können. Wie groß auch die eingegebenen Mengen der Zusätze sein mögen, sie gehen fast vollständig in das Roheisen, so daß die schließliche Zusammensetzung vorher genau bestimmt werden kann.It is a particular advantage of the new process that the additives cold can be entered into the converter. No matter how big the entered quantities of the additives, they go almost entirely into the pig iron, so that the final Composition can be determined in advance.

Man kann weiter die Herstellungstemperatur des Roheisens in weiten Grenzen ändern. Dies gewährt den Vorteil, daß das Gießen erleichtert und die Güte des erhaltenen Erzeugnisses erhöht wird. Die Temperaturänderungen können dadurch erzielt werden, daß man entweder die Anfangstemperatur der Stahlcharge sich ändern läßt, was jedoch auch mit der Temperatur des Kokses geschehen kann, oder daß man Ferrosilicium, Thermit oder andere Stoffe zugibt, die während des Schmelzens Wärme entwickeln.The production temperature of the pig iron can also be increased Change boundaries. This grants the advantage that the pouring is easier and the quality of the obtained product is increased. The temperature changes can thereby be achieved that you either change the initial temperature of the steel charge lets, however, which can also happen with the temperature of the coke, or that one Ferrosilicon, thermite or other substances that add heat during melting to develop.

Die Anpassungsfähigkeit des Verfahrens ist groß. Der Betriebsleiter ist in der Lage, in jedem Augenblick den Gang des Verfahrens zu überwachen und zu regeln.The adaptability of the process is great. The manager is able to monitor and control the course of the procedure at any moment rules.

Claims (1)

PATENT-ANSPRUcii: Verfahren zur Herstellung von Hämatitroheiszn durch Rückkohlung von im Konverter gefrischtem, phosphorhaltigem Roheisen mit Hilfe von glühendem Koks, dadurch gekennzeichnet, daß der verblasene und in eine Pfanne gegossene Stahl nach dem an sich bekannten Entschlacken in der Pfanne einem Konverter zugeführt wird, der rotglühenden Koks enthält, worauf der Stahl. durch kurzes und wiederholtes Blassen innig mit dem Koks und mit den gegebenenfalls noch benötigten, in kaltem Zustande beigefügten Zusätzen vermischt wird.PATENT CLAIMS: Process for the production of Hematitroheiszn by Recarburization of phosphorus-containing pig iron refined in the converter with the help of Red-hot coke, characterized in that the blown and poured into a pan Steel is fed to a converter after the known deslagging in the pan which contains red-hot coke, whereupon the steel. through short and repeated Pale intimately with the coke and with the possibly still needed, in cold Condition added additives is mixed.
DEU8190D 1923-06-03 1923-06-03 Process for the production of hematite pig iron Expired DE421991C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEU8190D DE421991C (en) 1923-06-03 1923-06-03 Process for the production of hematite pig iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU8190D DE421991C (en) 1923-06-03 1923-06-03 Process for the production of hematite pig iron

Publications (1)

Publication Number Publication Date
DE421991C true DE421991C (en) 1925-11-21

Family

ID=7566277

Family Applications (1)

Application Number Title Priority Date Filing Date
DEU8190D Expired DE421991C (en) 1923-06-03 1923-06-03 Process for the production of hematite pig iron

Country Status (1)

Country Link
DE (1) DE421991C (en)

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