DE424184C - Process for the direct production of steel and malleable iron from ore - Google Patents

Process for the direct production of steel and malleable iron from ore

Info

Publication number
DE424184C
DE424184C DEG55140D DEG0055140D DE424184C DE 424184 C DE424184 C DE 424184C DE G55140 D DEG55140 D DE G55140D DE G0055140 D DEG0055140 D DE G0055140D DE 424184 C DE424184 C DE 424184C
Authority
DE
Germany
Prior art keywords
steel
iron
ore
direct production
malleable iron
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
DEG55140D
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.)
KARL KINTZINGER
Original Assignee
KARL KINTZINGER
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 KARL KINTZINGER filed Critical KARL KINTZINGER
Priority to DEG55140D priority Critical patent/DE424184C/en
Application granted granted Critical
Publication of DE424184C publication Critical patent/DE424184C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide

Description

Verfahren zur direkten Erzeugung von Stahl und schmiedbarem Eisen aus Erz. Die Erfindung betrifft ein Verfahren zur Erzeugung von Stahl und schmiedbarem Eisen aus Erzen, unter Verwendung eines mit dem Schmelzraum verbundenen, von Reduktionsgasen durchströmten Schachtes, das dadurch gekennzeichnet ist, daß der Reduktionsschacht mit aus den Erzen und Zuschlägen hergestellten heißen Agglomeraten beschickt wird.Process for the direct production of steel and malleable iron from ore. The invention relates to a method for the production of steel and forgeable Iron from ores, using a reducing gas connected to the smelting space flow-through shaft, which is characterized in that the reduction shaft is charged with hot agglomerates produced from the ores and aggregates.

Von bekannten Verfahren, bei denen die Erze agglomeriert und in noch heißem Zustande in den Reduktionsapparat übergeführt werden, unterscheidet sich die Erfindung in erster Linie dadurch, daß die Gesamtbeschickung agglomeriert wird. Die Agglomerate erhalten demzufolge bereits die zur Stahlherstellung benötigte Zusammensetzung, so daß in der Schmelzschicht der Schlackenfluß gleichzeitig mit dem Eisen bzw. Stahlfluß entsteht. Hierdurch wird die Verschlakkung des Eisens infolge der sofortigen Bedeckung des flüssigen Eisenbades durch eine Schlackendecke auf ein geringes Maß beschränkt, so daß nur ein geringer Verlust an Eisen durch Oxydation eintritt.From known processes in which the ores are agglomerated and in still transferred to the reduction apparatus in a hot state differs the invention primarily in that the total charge is agglomerated. The agglomerates therefore already have the composition required for steel production, so that in the melt layer the slag flow simultaneously with the iron or steel flow arises. This causes the iron to become sluggish as a result of the immediate covering the liquid iron bath is limited to a small amount by a slag layer, so that there is only a slight loss of iron by oxidation.

Gegenüber bekannten Hochofenverfahren, bei denen die Erzagglomerate und die Zuschläge im heißen Zustand in dem Hochofen aufgegeben und durch festen Kohlenstoff reduziert werden, verwendet die Erfindung reduzierende Gase, zum Zwecke der direkten Erzeugung von Stahl und schmiedbarem Eisen, während es sich bei den bekannten Verfahren um die Herstellung von Roheisen handelt.Compared to known blast furnace processes in which the ore agglomerates and the surcharges are abandoned in the hot state in the blast furnace and through solid For the purpose of reducing carbon, the invention uses reducing gases the direct production of steel and malleable iron, while the known process is the production of pig iron.

Der Agglomerierung dient gewöhnlich ein Drehofen. Das heiße Agglomerat gelangt aus dem Agglomerierofen unmittelbar in den Reduktionsofen, z. B. einen Schachtofen, der zweckmäßigerweise über dem Stahlgewinnungs-, Martin-, elektrischen Ofen usw. aufgestellt ist.A rotary kiln is usually used for agglomeration. The hot agglomerate passes from the agglomerating furnace directly into the reduction furnace, e.g. B. a shaft furnace, which is expediently above the steelmaking, martin, electric furnace, etc. is set up.

Der Reduktionsofen wird nicht mit festen. Reduktionsstoffen, z. B. Koks, beschickt, sondern die Reduktion geschieht durch reduzierende Gase, z. B. Koksofengas, welches von unten nach oben oder von oben nach unten oder quer durch die Beschickung hindurchgeblasen wird. Die Gase werden gegebenenfalls vorgewärmt.The reduction furnace does not come with fixed. Reducing agents, e.g. B. Coke, charged, but the reduction is done by reducing gases, e.g. B. Coke oven gas, which from bottom to top or from top to bottom or across the charge is blown through. The gases are preheated if necessary.

Aus dem Reduktionsofen kommt das praktisch vollständig reduzierte Agglomerat unmittelbar in den Stahlschmelzofen, in dem nach bekannten Verfahren Stahl oder schmiedbares Eisen erschmolzen wird.The practically completely reduced comes from the reduction furnace Agglomerate directly into the steel melting furnace, in the known method Steel or malleable iron is melted.

Das Verfahren hat den großen Vorteil, daß aus insbesondere hocheisenhaltigen Erzen unter Umgehung der Roheisenschmelzung in einem Arbeitsgange Eisen und Stahl erzeugt wird..The process has the great advantage that it is made from particularly high iron contents Ores, bypassing pig iron smelting, iron and steel in one operation is produced..

Claims (1)

PATENT-ANSPRUCIl: Verfahren zur direkten Erzeugung von Stahl und schmiedbarem Eisen aus Erz, unter Verwendung eines mit dem Schmelzraum verbundenen, von Reduktionsgasen durchströmten Schachtes, dadurch gekennzeichnet, daß der Reduktionsschacht mit den aus den Erzen und Zuschlägen hergestellten heißen Agglomeraten beschickt wird.PATENT APPLICATION: Process for the direct production of steel and forgeable Iron from ore, using a reducing gas connected to the smelting chamber traversed shaft, characterized in that the reduction shaft with the hot agglomerates produced from the ores and aggregates are charged.
DEG55140D 1921-10-29 1921-10-29 Process for the direct production of steel and malleable iron from ore Expired DE424184C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG55140D DE424184C (en) 1921-10-29 1921-10-29 Process for the direct production of steel and malleable iron from ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG55140D DE424184C (en) 1921-10-29 1921-10-29 Process for the direct production of steel and malleable iron from ore

Publications (1)

Publication Number Publication Date
DE424184C true DE424184C (en) 1926-01-16

Family

ID=7130941

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG55140D Expired DE424184C (en) 1921-10-29 1921-10-29 Process for the direct production of steel and malleable iron from ore

Country Status (1)

Country Link
DE (1) DE424184C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026780A1 (en) * 1979-03-27 1981-04-15 Kaiser Engineers, Inc. Manufacture of steel from iron ores

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026780A1 (en) * 1979-03-27 1981-04-15 Kaiser Engineers, Inc. Manufacture of steel from iron ores
EP0026780A4 (en) * 1979-03-27 1981-08-28 Kaiser Eng Inc Manufacture of steel from iron ores.

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