DE366827C - Process for the production of iron in the cupola furnace with the sole processing of iron-containing slag - Google Patents
Process for the production of iron in the cupola furnace with the sole processing of iron-containing slagInfo
- Publication number
- DE366827C DE366827C DET23844D DET0023844D DE366827C DE 366827 C DE366827 C DE 366827C DE T23844 D DET23844 D DE T23844D DE T0023844 D DET0023844 D DE T0023844D DE 366827 C DE366827 C DE 366827C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- production
- slag
- cupola furnace
- sole processing
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 33
- 229910052742 iron Inorganic materials 0.000 title claims description 17
- 239000002893 slag Substances 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Verfahren zur Erzeugung von Eisen im Kupolofen unter alleiniger Verarbeitung eisenhaltiger Schlacken. Um aus eisenhaltigen Schlacken das Eisen zu gewinnen, hat man die Schlacken im Eisenhüttenbetrieb in größeren Mengen den Erzen zugeschlagen oder auch wohl für sich allein, in gleicher Weise wie kieselsäurereiche Erze verhüttet. Diese Eisenerzeugung unter alleiniger Verarbeitung von Schlacken erwies sich jedoch nur für hochwertigere Schlacken mit entsprechend hohem. Eisengehalt als wirtschaftlich und setzte überdies das Vorhandensein eines Hochofenbetriebes voraus, so daß manche Schlacken, wie z. B. die Bessemer End- und Auswurfschlacken, obschon sie recht erhebliche Eisemnengen enthalten, unausgenutzt auf die Halden wanderten. Zweck der Erfindung ist, diese Eisenmengen dadurch nutzbar zu machen, daß man die sie enthalten, den Schlacken für sich allein im Kupolofen, somit an Ort und Stelle auf Eisen zu verarbeiten imstande ist. Da das Eisen aus diesen Schlacken nur schwer zu reduzieren ist, so würden sich, wenn man sie im Kupolofen, der wärmetechnisch ungünstiger als der Hochofen ausgestattet ist, für sich allein auf Eisen unter Verwendung von Gebläsewind und normalem Ausschmelzen mit Koks- und Kalksteinzusätzen verarbeiten wollte, Verstopfungen des Ofenquerschnitts einstellen-, die zu Explosionen im Ofen und der Windleitung und damit zu erheblichen Gefahren für die Bedienungsmannschaft führen.Process for the production of iron in the cupola furnace with sole processing ferrous slags. In order to extract iron from ferrous slag, it has to be the slag in the ironworks was added to the ores in large quantities or perhaps on its own, smelted in the same way as ores rich in silica. However, this iron production using only slag turned out to be only for higher quality slag with a correspondingly high. Iron content as economical and also assumed the existence of a blast furnace, so that some Slags such as B. the Bessemer end and ejection slag, although they are quite considerable Iron quantities contained, unused migrated to the dumps. Purpose of the invention is to make these amounts of iron usable by the fact that they contain the Slag on its own in the cupola furnace, so to be processed on the spot on iron is able to. Since the iron from this slag is difficult to reduce, so If you put them in a cupola, it would be thermally less favorable than the blast furnace is equipped with the use of blower wind and iron on its own wanted to process normal melt-out with coke and limestone additives, blockages Adjust the cross-section of the furnace - which leads to explosions in the furnace and the wind conduction and thus lead to considerable dangers for the operating team.
Gemäß der Erfindung wird diese Schwierigkeit dadurch behoben, daß mit dem Gebläsewind in an sich bekannter Weise kohlenstoffhaltige Substanzen, wie Holzkohlenstaub o. dgl., in den hupolofen eingeführt und dabei in innige Berührung mit den. zu reduzierenden Massen gebracht werden, wodurch im -Schmelzraum eine solche reduzierende Atmosphäre und Temperatur hervorgerufen wird, daß die Reduzierung des Eisens aus den Schlacken einen leichten Verlauf nimmt und auch im Kupolofen durchgeführt zu werden vermag.According to the invention, this problem is overcome in that with the blower wind in a known manner carbonaceous substances such as Charcoal dust or the like, introduced into the hupolofen and in close contact with it with the. be brought to be reduced masses, whereby such a reducing atmosphere and temperature is caused that the reduction of the Iron takes a slight course from the slag and is also carried out in the cupola furnace able to become.
Dadurch sind z. B. die einzelnen. Stahlgießereien imstande, den Eisengehalt der bei ihrer .Stahlbereitung abfallenden Schlacken in ihren eigenen Betrieben ohne viel Umstände zum überwiegenden Teil zu gewinnen und entweder in noch flüssigem Zustande sofort für die eigene Erzeugung nutzbar zu machen oder gegebenenfalls auch zunächst zu Masseln zu vergießen.This z. B. the individual. Steel foundries are able to reduce the iron content the slag falling off in their steelmaking in their own factories without a lot of circumstances to gain for the most part and either in still liquid To make conditions immediately usable for their own generation or, if necessary, also first to shed ingots.
Dem wie vorstehend beschrieben aus den Schlacken gewonnenen Eisen, können beim Schmelzen selbstverständlich auch in an sich bekannter Weise solche Zusatzmittel, 'wie z. B. Ferro-Silizium und Ferro-i\!langan, zugesetzt werden, die dazu dienen, den Silizium- und Mangangehalt im Eisen nach Wunsch und Bedürfnis anzureichern. .The iron obtained from the slag as described above, can of course also be used in a manner known per se during melting Additives, 'such. B. Ferro-silicon and Ferro-i \! Langan, which serve to enrich the silicon and manganese content in iron as desired and required. .
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET23844D DE366827C (en) | Process for the production of iron in the cupola furnace with the sole processing of iron-containing slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET23844D DE366827C (en) | Process for the production of iron in the cupola furnace with the sole processing of iron-containing slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE366827C true DE366827C (en) | 1923-01-12 |
Family
ID=7551184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DET23844D Expired DE366827C (en) | Process for the production of iron in the cupola furnace with the sole processing of iron-containing slag |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE366827C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1171453B (en) * | 1953-08-05 | 1964-06-04 | Steinmueller Gmbh L & C | Process for the recycling of slag melted in melting chambers |
-
0
- DE DET23844D patent/DE366827C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1171453B (en) * | 1953-08-05 | 1964-06-04 | Steinmueller Gmbh L & C | Process for the recycling of slag melted in melting chambers |
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