DE482204C - Process for the direct production of metals, especially iron, from ores or residues - Google Patents

Process for the direct production of metals, especially iron, from ores or residues

Info

Publication number
DE482204C
DE482204C DEY514D DEY0000514D DE482204C DE 482204 C DE482204 C DE 482204C DE Y514 D DEY514 D DE Y514D DE Y0000514 D DEY0000514 D DE Y0000514D DE 482204 C DE482204 C DE 482204C
Authority
DE
Germany
Prior art keywords
ores
residues
metals
direct production
especially 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
DEY514D
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.)
BERNHARD YOUNG DR ING
Original Assignee
BERNHARD YOUNG 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 BERNHARD YOUNG DR ING filed Critical BERNHARD YOUNG DR ING
Priority to DEY514D priority Critical patent/DE482204C/en
Application granted granted Critical
Publication of DE482204C publication Critical patent/DE482204C/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
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces

Description

Verfahren zur unmittelbaren Herstellung von Metallen, insbesondere Eisen, aus Erzen oder Rückständen Bisher war es nur unter ganz bestimmten Bedingungen der Feuerführung möglich, im Drehrohrofen Erze und rnetallhaltige Rückstände, z. B. Eisenerze, zu Eisenschwamm zu reduzieren. Eine der -Schwierigkeiten liegt darin, zu verhindern, daß Sauerstoff und Kohlensäure mit dem Reduktionserzeugnis in Berührung kommen.Process for the direct production of metals, in particular Iron, from ores or residues Until now it was only available under very specific conditions the fire control possible, in the rotary kiln ores and metal-containing residues, z. B. iron ores, to reduce sponge iron. One of the difficulties is to prevent oxygen and carbonic acid from coming into contact with the reduction product come.

Nach dem neuen Verfahren werden zunächst in bekannter Weise die Erze und metallhaltigen Rückstände mit den nötigen Zuschlagstoffen und Reduktionskohle gemischt und unter Verwendung eines Bindemittels zu kleinen Formlingen geformt. Diese Formlinge werden hierauf nach der Erfindung unter Verwendung eines Bindemittels mit einer Kohleschicht überzogen, und diese gegebenenfalls vorher getrockneten Formlinge werden in einen Drehrohrofen aufgegeben, der in bekannter Weise im Gegenstrom mit reduzierender Flamme beheizt wird.According to the new process, the ores are first used in a known manner and metal-containing residues with the necessary additives and reducing carbon mixed and formed into small moldings using a binder. These moldings are then made according to the invention using a binder Coated with a layer of carbon, and this optionally previously dried moldings are placed in a rotary kiln, which in a known manner in countercurrent with reducing flame is heated.

Die Formlinge wandern vom Einlauf dem Auslaufende zu und gelangen dabei in die Brennzone, in der der Kern reduziert wird. Die äußere Kohleschicht verhindert, daß beim Brennen oder beim Abkühlen Sauerstoff zu dem Reduktionserzeugnis treten kann. Eine Wiederoxydation ist also ausgeschlossen. Sollte in den Heizgasen zufällig einmal überschüssiger Sauerstoff vorhanden sein, so müßte er, um zum Kern der Formlinge zu gelangen, erst die glühende -Kohleschicht durchdringen und würde dabei natürlich sofort von der Kohle verbraucht werden.The briquettes migrate from the inlet to the outlet end and arrive in the burning zone, in which the core is reduced. The outer layer of carbon prevents oxygen from being added to the reduction product on firing or cooling can kick. Reoxidation is therefore impossible. Should be in the heating gases if excess oxygen happens to be present, it would have to be in order to get to the nucleus To get to the bricks, first penetrate the glowing layer of carbon and would are of course consumed immediately by the coal.

Claims (1)

PATENTANSPRUCH: Verfahren zur unmittelbaren Herstellung von Metallen, insbesondere Eisen, aus Erzen oder Rückständen, wobei eine Schmelzung nicht stattfindet und die Erze im Reduktionsraum von einer die Wiederoxydation ausschließenden Kohlenschicht umgeben sind, dadurch gekennzeichnet, daß die bekannten, aus Erzen oder Rückständen, Zuschlägen, Reduktionskohle und Bindemittel gebildeten Formlinge mit Hilfe eines Bindemittels mit einer Kohleschicht überzogen in dem Drehrohrofen erhitzt werden. PATENT CLAIM: Process for the direct production of metals, in particular iron, from ores or residues, whereby melting does not take place and the ores in the reduction chamber are surrounded by a coal layer which excludes reoxidation, characterized in that the known aggregates, from ores or residues, Reduced carbon and binding agent formed moldings are heated in the rotary kiln with the aid of a binding agent coated with a layer of carbon.
DEY514D 1926-12-10 1926-12-10 Process for the direct production of metals, especially iron, from ores or residues Expired DE482204C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEY514D DE482204C (en) 1926-12-10 1926-12-10 Process for the direct production of metals, especially iron, from ores or residues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEY514D DE482204C (en) 1926-12-10 1926-12-10 Process for the direct production of metals, especially iron, from ores or residues

Publications (1)

Publication Number Publication Date
DE482204C true DE482204C (en) 1929-09-10

Family

ID=7617359

Family Applications (1)

Application Number Title Priority Date Filing Date
DEY514D Expired DE482204C (en) 1926-12-10 1926-12-10 Process for the direct production of metals, especially iron, from ores or residues

Country Status (1)

Country Link
DE (1) DE482204C (en)

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