PL436679A1 - Sposób wytapiania stali bezpośrednio z rudy żelaza - Google Patents
Sposób wytapiania stali bezpośrednio z rudy żelazaInfo
- Publication number
- PL436679A1 PL436679A1 PL436679A PL43667921A PL436679A1 PL 436679 A1 PL436679 A1 PL 436679A1 PL 436679 A PL436679 A PL 436679A PL 43667921 A PL43667921 A PL 43667921A PL 436679 A1 PL436679 A1 PL 436679A1
- Authority
- PL
- Poland
- Prior art keywords
- reactor
- carbon
- introducing
- iron ore
- iron
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 10
- 229910052742 iron Inorganic materials 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 238000009628 steelmaking Methods 0.000 title 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 3
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000003345 natural gas Substances 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- MVWDJLOUEUAWIE-UHFFFAOYSA-N O=C=O.O=C=O Chemical compound O=C=O.O=C=O MVWDJLOUEUAWIE-UHFFFAOYSA-N 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
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
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
- C21B13/026—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state heated electrically
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Abstract
Przedmiotem wynalazku jest sposób wytapiania stali węglowych bezpośrednio z rudy żelaza w jednym reaktorze metalurgicznym, polegający na wprowadzeniu do reaktora przez wdmuchiwanie, miałkich rud żelaza i miałkich topników od góry reaktora oraz reduktora gazowego w postaci mieszaniny wodoru lub mieszaniny wodoru i tlenku węgla i prowadzeniu redukcji tlenków żelaza w fazie ciekłej, przy czym pożądaną, końcową zawartość węgla w stali reguluje się poprzez wprowadzenie takiej ilości węgla bezpośrednio do kąpieli metalowej, która zapewnia osiągnięcie założonego poziomu nawęglenia stali lub przez wprowadzenie do wsadu żelazonośnego określonej ilość reduktora węglowego w postaci koksiku charakteryzujący się tym, że energia cieplna w reaktorze jest generowana w procesie spalania gazu ziemnego tlenem w górnej części reaktora, zaś dostarczony nadmiar gazu ziemnego w stosunku do ilości wynikających ze stechiometrii procesu spalania jest termicznie rozkładany na węgiel i wodór cząsteczkowy zapewniając atmosferę redukcyjną w dolnej części reaktora.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL436679A PL436679A1 (pl) | 2021-01-18 | 2021-01-18 | Sposób wytapiania stali bezpośrednio z rudy żelaza |
| US18/271,445 US20240052440A1 (en) | 2021-01-18 | 2021-12-10 | Method of steel smelting directly from iron ore |
| PCT/PL2021/000092 WO2022154680A1 (en) | 2021-01-18 | 2021-12-10 | Method of steel smelting directly from iron ore |
| EP21851714.2A EP4278018A1 (en) | 2021-01-18 | 2021-12-10 | Method of steel smelting directly from iron ore |
| KR1020237026300A KR20230131876A (ko) | 2021-01-18 | 2021-12-10 | 철광석으로부터 직접 강철을 용련하는 방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL436679A PL436679A1 (pl) | 2021-01-18 | 2021-01-18 | Sposób wytapiania stali bezpośrednio z rudy żelaza |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL436679A1 true PL436679A1 (pl) | 2022-07-25 |
Family
ID=80122759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL436679A PL436679A1 (pl) | 2021-01-18 | 2021-01-18 | Sposób wytapiania stali bezpośrednio z rudy żelaza |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240052440A1 (pl) |
| EP (1) | EP4278018A1 (pl) |
| KR (1) | KR20230131876A (pl) |
| PL (1) | PL436679A1 (pl) |
| WO (1) | WO2022154680A1 (pl) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL236288A2 (en) | 1982-05-05 | 1983-03-14 | Glowne B St I P Gorniczych | Method of recovering heat from air compression and apparatus therefor |
| SU1609456A3 (ru) * | 1985-07-18 | 1990-11-23 | Кабусики Кайся Кобе Сейкосе (Фирма) | Способ пр мого получени железа |
| DE3629055A1 (de) * | 1986-08-27 | 1988-03-03 | Kloeckner Cra Tech | Verfahren zum gesteigerten energieeinbringen in elektrolichtbogenoefen |
| AT402939B (de) * | 1992-07-16 | 1997-09-25 | Voest Alpine Ind Anlagen | Verfahren und anlage zum herstellen einer metallschmelze |
| AT400245B (de) * | 1993-12-10 | 1995-11-27 | Voest Alpine Ind Anlagen | Verfahren und anlage zum herstellen einer eisenschmelze |
| CN105296699B (zh) * | 2015-10-29 | 2017-07-18 | 东北大学 | 一种避免预还原矿再氧化的熔融还原炼铁装置及方法 |
-
2021
- 2021-01-18 PL PL436679A patent/PL436679A1/pl unknown
- 2021-12-10 US US18/271,445 patent/US20240052440A1/en active Pending
- 2021-12-10 KR KR1020237026300A patent/KR20230131876A/ko unknown
- 2021-12-10 EP EP21851714.2A patent/EP4278018A1/en active Pending
- 2021-12-10 WO PCT/PL2021/000092 patent/WO2022154680A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| EP4278018A1 (en) | 2023-11-22 |
| US20240052440A1 (en) | 2024-02-15 |
| KR20230131876A (ko) | 2023-09-14 |
| WO2022154680A1 (en) | 2022-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kirschen et al. | Influence of direct reduced iron on the energy balance of the electric arc furnace in steel industry | |
| JP2016108575A (ja) | 直流アーク式電気炉による高純度鋼の製造方法 | |
| CN107675069B (zh) | 采用co2+o2混合气体吹炼实现脱碳保锰冶炼中高锰钢的方法 | |
| PL436679A1 (pl) | Sposób wytapiania stali bezpośrednio z rudy żelaza | |
| Song et al. | Study on the appropriate production parameters of a gas-injection blast furnace | |
| Zhou et al. | Process model for manufacturing 400 series stainless steel with purified CO2 as an auxiliary oxidant and realizing carbon cycle | |
| RU2542050C1 (ru) | Способ пирометаллургической переработки железосодержащих материалов | |
| BRPI0406863A (pt) | Processo de fusão para a produção de ferro | |
| Nanyang et al. | The investigation on the middle period dephosphorization in 70t converter | |
| GB1314039A (en) | Method of and apparatus for the reduction of ores especially iron ores | |
| JP7105708B2 (ja) | 還元ガスの吹込み量決定方法及び高炉の操業方法 | |
| Wang et al. | High‐Efficiency Dephosphorization by Bottom‐Blown O2‐CaO Process for Semi‐Steelmaking | |
| Rafiei | ARGON-OXYGEN DECARBURIZATION OF HIGH MANGANESE STEELS | |
| PL432997A1 (pl) | Kompozyt samoredukujący oraz sposób wytopu stali z użyciem tego kompozytu | |
| Solonenko et al. | Oxidation of molten impurities in converters by means of combustion flames: Thermodynamic principles. 2. Interaction of flame with metal and slag in converter bath | |
| Madhavan et al. | Heat Transfer in a BOF Converter | |
| Tleugabulov et al. | Control of redox processes in the blast furnace | |
| Baisanova et al. | Calculation of material and heat balance of melting refined ferrochrome using the new complex reducing agent of aluminosilicochrome | |
| US410430A (en) | Process of making steel direct from the ore by the use of natural gas | |
| Moskalina | Combustion of coke and natural gas in blast furnaces with hybrid blast | |
| Wang et al. | Thermodynamic Study on Substitution of Process CO2 for Ar or O2 in AOD Smelting | |
| Kumar et al. | Fossil-Free Carburization of Hydrogen-Based DRI | |
| JP2023114182A (ja) | 高炉の操業方法 | |
| Protopopov et al. | Peculiarities of Exhaust Gases Afterburning in Converter with Application of Two-Tier Oxygen Lance Blowing | |
| Kozhukhov | Role of prereduced pellets in the slag foaming in modern EAFs |