PL432997A1 - Self-reducing composite and method of steel smelting using the composite - Google Patents
Self-reducing composite and method of steel smelting using the compositeInfo
- Publication number
- PL432997A1 PL432997A1 PL432997A PL43299720A PL432997A1 PL 432997 A1 PL432997 A1 PL 432997A1 PL 432997 A PL432997 A PL 432997A PL 43299720 A PL43299720 A PL 43299720A PL 432997 A1 PL432997 A1 PL 432997A1
- Authority
- PL
- Poland
- Prior art keywords
- composite
- iron
- metal
- weight
- charge
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title abstract 5
- 229910000831 Steel Inorganic materials 0.000 title abstract 4
- 239000010959 steel Substances 0.000 title abstract 4
- 238000003723 Smelting Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 9
- 229910052742 iron Inorganic materials 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000010891 electric arc Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910001018 Cast iron Inorganic materials 0.000 abstract 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 238000005255 carburizing Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 abstract 1
- 238000005261 decarburization Methods 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000005058 metal casting Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Przedmiotem wynalazku jest kompozyt samoredukujący do stosowania przy wytopie stali w łukowym piecu stalowniczym charakteryzujący się tym, że zawiera: od 50 do 60% wag. tlenkowego odpadu żelazonośnego w postaci zendry o zawartości żelaza co najmniej 70% wag., od 12 do 18% wag. nośnika węgla o zawartości węgla co najmniej 85% wag., zwłaszcza w postaci drobnego węgla, od 28 do 32% wag. nośnika glinu metalicznego w postaci wiórów aluminiowo-żeliwnych o zawartości glinu od 45 do 55% wag. i żelaza od 35 do 40% wag. W innym aspekcie wynalazku, jego przedmiotem jest także sposób wytopu stali w piecu łukowym obejmujący następujące etapy: wprowadzenie z pierwszym wsadem metalowego materiału wsadowego kompozytu według wynalazku do środowej strefy pieca graniczącej z łukami elektrycznymi gdzie znajduje się kałuża ciekłej stali, przy czym ilość wprowadzonego kompozytu jest nie większa niż 14% masy wprowadzanego następnie wsadu żelazonośnego, po czym doprowadza się paliwo, środek nawęglający, proszek i gazowy tlen, a także doprowadza się prąd elektryczny, i kolejno podgrzewa i stapia materiał wsadowy przy pomocy łuków elektrycznych i energii chemicznej włącznie z odwęglaniem kąpieli metalowej, z odlewaniem metalu i spuszczaniem żużlu z pieca.The subject of the invention is a self-reducing composite for use in smelting steel in an electric arc furnace, characterized in that it contains: from 50 to 60 wt. iron-bearing oxide waste in the form of scale with an iron content of at least 70 wt.%, from 12 to 18 wt.%. a carbon carrier with a carbon content of at least 85% by weight, in particular in the form of fine coal, from 28 to 32% by weight. of a metal aluminum carrier in the form of aluminum-cast iron chips with an aluminum content of 45 to 55% by weight. % and iron from 35 to 40 wt.%. In another aspect of the invention, it also relates to a method of smelting steel in an electric arc furnace comprising the steps of: introducing with a first charge of a metal batch material of the composite according to the invention into the middle zone of the furnace bordering the electric arcs where there is a pool of molten steel, the amount of the introduced composite being not more than 14% of the mass of the iron-bearing charge then introduced, followed by the supply of fuel, carburizing agent, powder and oxygen gas, as well as the supply of electric current, and successively heating and melting the charge material by means of electric arcs and chemical energy, including decarburization of the bath metal, with metal casting and furnace slag tapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL432997A PL240867B1 (en) | 2020-02-21 | 2020-02-21 | Self-reducing composite and method of steel smelting using the composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL432997A PL240867B1 (en) | 2020-02-21 | 2020-02-21 | Self-reducing composite and method of steel smelting using the composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL432997A1 true PL432997A1 (en) | 2021-08-23 |
| PL240867B1 PL240867B1 (en) | 2022-06-20 |
Family
ID=77561321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL432997A PL240867B1 (en) | 2020-02-21 | 2020-02-21 | Self-reducing composite and method of steel smelting using the composite |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL240867B1 (en) |
-
2020
- 2020-02-21 PL PL432997A patent/PL240867B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL240867B1 (en) | 2022-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230175087A1 (en) | Method for producing liquid pig iron from a DRI product | |
| Holtzer et al. | The recycling of materials containing iron and zinc in the OxyCup process | |
| RU2254380C1 (en) | Method of production of rail steel | |
| Karimov | Improving steel melting intensity in the process of electrosmeltingfrom waste and pellets (HBI) | |
| Orlov et al. | Production of Aluminum–Chromium–Silicon Alloy from Unconditioned Materials | |
| PL432997A1 (en) | Self-reducing composite and method of steel smelting using the composite | |
| RU2201970C2 (en) | Method of making steel in high-power electric arc furnaces | |
| El-Faramawy et al. | Silicomanganese production from manganese rich slag | |
| Yang et al. | EAF Smelting Trials of Waste‐Carbon Briquettes at Avesta Works of Outokumpu Stainless AB for Recycling Oily Mill Scale Sludge from Stainless Steel Production | |
| US20180305778A1 (en) | Method for making steel in an electric arc furnace | |
| El-Faramawy et al. | Demanganisation of high manganese pig iron to produce high manganese slag | |
| RU2514241C2 (en) | Synthetic composite charge material for production of high-quality steel | |
| Petrov | Material balance model for steel production in electric arc furnace-melting period | |
| US3779739A (en) | Process for manufacture of low oxygen and low sulphur steel | |
| RU2639396C1 (en) | Method for pyrometallurgical processing of oxidized nickel ore | |
| Gudim et al. | Waste-free processing of steel-smelting slag | |
| RU2808305C1 (en) | Processing method for oxidized nickel ore | |
| Karbowniczek et al. | Possibilities of decarbonization of ironmaking processes using hydrogen | |
| US20240052440A1 (en) | Method of steel smelting directly from iron ore | |
| RU2285726C1 (en) | Method of making steel in hearth steel-making unit | |
| RU2697129C2 (en) | Method of loading charge into arc electric furnace for steel melting | |
| RU2400541C1 (en) | Procedure for rail steel melting | |
| CN107619902A (en) | The technique that a kind of electric furnace converts hot metal charging injection blast furnace dust | |
| RU2409682C1 (en) | Procedure for steel melting | |
| Chen et al. | Effect of Melting and Refining with DC-arc on the Yield of Alloy Element |