DE482202C - Process for the direct production of iron or steel or other low-carbon metals and alloys - Google Patents

Process for the direct production of iron or steel or other low-carbon metals and alloys

Info

Publication number
DE482202C
DE482202C DEF55805D DEF0055805D DE482202C DE 482202 C DE482202 C DE 482202C DE F55805 D DEF55805 D DE F55805D DE F0055805 D DEF0055805 D DE F0055805D DE 482202 C DE482202 C DE 482202C
Authority
DE
Germany
Prior art keywords
slag
alloys
iron
steel
low
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
DEF55805D
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.)
HAMPUS GUSTAF EMRIK CORNELIUS
Original Assignee
HAMPUS GUSTAF EMRIK CORNELIUS
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 HAMPUS GUSTAF EMRIK CORNELIUS filed Critical HAMPUS GUSTAF EMRIK CORNELIUS
Priority to DEF55805D priority Critical patent/DE482202C/en
Application granted granted Critical
Publication of DE482202C publication Critical patent/DE482202C/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
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces

Description

Verfahren zum unmittelbaren Erzeugen von Eisen oder Stahl oder anderen kohlenstoffarmen metallen und Legierungen Die vorliegende Erfindung hat eine weitere Ausbildung des im Patent 46 17,16 beschriebenen Verfahrens zum Gegenstand und besteht darin, daß die Reduktion und Schmelzung mit Briketten vorgenommen wird, deren spezifisches Gewicht kleiner als dasjenige der während des Schmelzens gebildeten Schlacke ist. Dabei können der Brikettmischung, tun das Schwinunen der Brikette noch weiter sicherzustellen, Schlackebildner in solchem Ausmaß und in solcher Auswahl zugesetztwerden, daß die Zähflüssigkeit der während des Schmelzens gebildeten Schlacke erhöht wird.Process for the direct production of iron or steel or others Low Carbon Metals and Alloys The present invention has another Formation of the method described in patent 46 17.16 to the subject and exists in that the reduction and melting is carried out with briquettes, their specifics Weight is less than that of the slag formed during melting. The briquette mix can do this to ensure that the briquette continues to shrink Slag forming agents are added to such an extent and in such a selection that the The viscosity of the slag formed during melting is increased.

In der Praxis mu;ß beim Abstimmen von Brikett und Schlacke dem Umstande Rechnung getragen werden, daß die Brikette während ihrer Reduktion Schlacke aufnehmen und dadurch, wenigstens zeitweise, schwerer werden. Es soll also der Unterschied des spezifischen Gewichtes der Schlacke von demjenigen der Brikette nicht allzu klein gehalten werden.In practice, the combination of briquette and slag must take into account the circumstances It must be taken into account that the briquette absorb slag during its reduction and thereby, at least temporarily, become heavier. So it's supposed to be the difference the specific gravity of the slag is not too much from that of the briquette can be kept small.

Das geeignetste Mittel, das spezifische Gewicht der Brikette niedrig zu halten, ist, Rohstoffe, insbesondere Reduktionsmittel niedrigen Volumengewichtes, z. B. Holzkohle oder Koks, zu, verwenden. Das spezifische Gewicht der Brikette kann auch dadurch vermindert werden, daß geeignete Stoffe, wie Kalk, Dolomit, Quarz, Ton o. dgl., -der Mischung beim Herrichten der Beschickung zugesetzt werden. Der im einzelnen Falle zu verwendende Stoff hängt von der Beschaffenheit der im Erz eingehenden Bergart sowie von der Natur des Aschegehaltes des kohlenstoffhaltigen Reduktionsmittels oder der Natur des verwendeten sonstigen Reduktionsmittels ab. Derselbe Zweck kann auch dadurch erreicht werden, daß man beim Brikettieren den Pressungsdruck entsprechend niedrig hält.The most suitable means, the specific weight of the briquette low is to keep raw materials, especially reducing agents of low volumetric weight, z. B. charcoal or coke to use. The specific weight of the briquette can can also be reduced by using suitable substances such as lime, dolomite, quartz, Clay or the like can be added to the mixture when preparing the batch. Of the The substance to be used in each case depends on the nature of the ore incoming mountain species as well as the nature of the ash content of the carbonaceous Reducing agent or the nature of the other reducing agent used. The same purpose can also be achieved by the fact that when briquetting the Keeps the compression pressure correspondingly low.

Auch bei Zusatz von Schlackebildnern zu der Brikettmischung, um die Zähflüssigkeit der Schlacke zu erhalten, ist es in jedem einzelnen Falle natürlich von der Zusammensetzung des Erzes und des Reduktionsmittels abhängig, welche Stoffe zu verwenden sind.Even with the addition of slag formers to the briquette mixture in order to reduce the It is natural in every single case to keep the slag viscous which substances depend on the composition of the ore and the reducing agent are to be used.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zum unmittelbaren Erzeugen von Eisen oder Stahl oder anderen kohlenstoffarmen Metallen und Legierungen im Elektroofen nach Patent 461746, dadurch gekennzeichnet, daß die Reduktion und Schmelzung mit Briketten vorgenommen wird, deren spezifisches Gewicht kleiner als dasjenige der während des Schmelzens gebildeten Schlacke ist. PATENT CLAIMS: i. Process for the direct production of iron or steel or other low carbon metals and alloys in the electric furnace according to patent 461746, characterized in that the reduction and melting with Briquettes are made, their specific gravity smaller than that of the slag formed during melting. 2. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß der Brikettmischung, um das Schwimmen der Brikette noch weiter sicherzustellen, Schlackebildner in solchem Ausmaß und in solcher Auswahl zugesetzt werden, daß die Zähflüssigkeit der während des Schmelzens gebildeten Schlacke erhöht wird.2. Procedure according to Claim r, characterized in that the briquette mixture to the floating of the Briquette to ensure still further, slag-forming in such an extent and in such Selection should be added that the viscosity of the formed during melting Slag is increased.
DEF55805D 1924-03-30 1924-03-30 Process for the direct production of iron or steel or other low-carbon metals and alloys Expired DE482202C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF55805D DE482202C (en) 1924-03-30 1924-03-30 Process for the direct production of iron or steel or other low-carbon metals and alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF55805D DE482202C (en) 1924-03-30 1924-03-30 Process for the direct production of iron or steel or other low-carbon metals and alloys

Publications (1)

Publication Number Publication Date
DE482202C true DE482202C (en) 1929-09-10

Family

ID=7107785

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF55805D Expired DE482202C (en) 1924-03-30 1924-03-30 Process for the direct production of iron or steel or other low-carbon metals and alloys

Country Status (1)

Country Link
DE (1) DE482202C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264468B (en) * 1958-08-01 1968-03-28 Electro Chimie Metal Process for the direct extraction of very low-carbon metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264468B (en) * 1958-08-01 1968-03-28 Electro Chimie Metal Process for the direct extraction of very low-carbon metals

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