RU2011135038A - METHOD FOR PRODUCING GRANULATED IRON - Google Patents
METHOD FOR PRODUCING GRANULATED IRON Download PDFInfo
- Publication number
- RU2011135038A RU2011135038A RU2011135038/02A RU2011135038A RU2011135038A RU 2011135038 A RU2011135038 A RU 2011135038A RU 2011135038/02 A RU2011135038/02 A RU 2011135038/02A RU 2011135038 A RU2011135038 A RU 2011135038A RU 2011135038 A RU2011135038 A RU 2011135038A
- Authority
- RU
- Russia
- Prior art keywords
- iron oxides
- range
- amount
- sinter
- atmospheric gas
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract 6
- 229910052742 iron Inorganic materials 0.000 title claims abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract 14
- 235000013980 iron oxide Nutrition 0.000 claims abstract 14
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims abstract 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract 12
- 239000000203 mixture Substances 0.000 claims abstract 10
- 239000007789 gas Substances 0.000 claims abstract 7
- 239000003638 chemical reducing agent Substances 0.000 claims abstract 6
- 239000002994 raw material Substances 0.000 claims abstract 6
- 239000003575 carbonaceous material Substances 0.000 claims abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000002844 melting Methods 0.000 claims abstract 2
- 230000008018 melting Effects 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims abstract 2
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 2
- 239000001301 oxygen Substances 0.000 claims abstract 2
- 239000002893 slag Substances 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims 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
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
- C21B13/105—Rotary hearth-type furnaces
-
- 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
- C21B13/0073—Selection or treatment of the reducing gases
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
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
1. Способ производства гранулированного железа, включающий в себя:загрузку агломерата, образованного из смеси сырьевого материала, которая содержит вещество, содержащее оксиды железа, и углеродистый восстановитель поверх углеродистого материала, распределенного по поду печи; инагревание агломерата с тем, чтобы тем самым восстановить и расплавить оксиды железа в агломерате, в которомтемпературу агломерата в печи устанавливают в диапазоне от 1200°С до 1500°С;парциальное давление кислорода в атмосферном газе, в котором нагревают агломерат, устанавливают не ниже 2,0×10атм в стандартном состоянии; илинейную скорость атмосферного газа в печи устанавливают не ниже 4,5 см/с.2. Способ производства по п.1, в котором состав смеси сырьевого материала регулируют так, чтобы процент количества связанного углерода в углеродистом восстановителе был в диапазоне от 98% по массе до 102% по массе относительно количества связанного углерода, необходимого для восстановления оксидов железа.3. Способ производства по п.1, в котором состав смеси сырьевого материала регулируют так, чтобы основность шлака, образуемого при восстановлении оксидов железа, была в диапазоне от 0,1 до 1,6.4. Способ производства по п.1, в котором процент количества связанного углерода, содержащегося в углеродистом восстановителе, находится в диапазоне от 98% по массе до 100% по массе относительно количества связанного углерода, необходимого для восстановления оксидов железа.5. Способ производства по п.1, в которомлинейную скорость атмосферного газа устанавливают не выше 5,4 см/с (включая 0 см/с) до тех пор, пока оксиды железа не начнут плавиться; ипосле начала плавления оксидов �1. A method of producing granular iron, including: loading an agglomerate formed from a mixture of raw materials that contains a substance containing iron oxides and a carbonaceous reductant on top of a carbonaceous material distributed over the hearth of the furnace; and heating the sinter so as to thereby reduce and melt iron oxides in the sinter, in which the sinter temperature in the furnace is set in the range from 1200 ° C to 1500 ° C; the partial pressure of oxygen in the atmospheric gas in which the sinter is heated is set not lower than 2, 0 × 10 atm in standard condition; The linear velocity of the atmospheric gas in the furnace is set not lower than 4.5 cm / s. 2. The manufacturing method according to claim 1, wherein the composition of the mixture of the raw material is adjusted so that the percentage of fixed carbon in the carbonaceous reductant is in the range of 98% by mass to 102% by mass, based on the amount of fixed carbon required to reduce iron oxides. The manufacturing method according to claim 1, wherein the composition of the raw material mixture is adjusted so that the basicity of the slag formed in the reduction of iron oxides is in the range from 0.1 to 1.6. The manufacturing method according to claim 1, wherein the percentage of the amount of fixed carbon contained in the carbonaceous reductant is in the range of 98% by mass to 100% by mass, relative to the amount of fixed carbon required to reduce iron oxides. The production method according to claim 1, in which the linear velocity of the atmospheric gas is set not higher than 5.4 cm / s (including 0 cm / s) until the iron oxides begin to melt; and after the onset of melting of oxides
Claims (6)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-013378 | 2009-01-23 | ||
| JP2009013378 | 2009-01-23 | ||
| PCT/JP2010/050373 WO2010084822A1 (en) | 2009-01-23 | 2010-01-15 | Process for manufacturing granular iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2011135038A true RU2011135038A (en) | 2013-02-27 |
| RU2484145C2 RU2484145C2 (en) | 2013-06-10 |
Family
ID=42355876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2011135038/02A RU2484145C2 (en) | 2009-01-23 | 2010-01-15 | Method of producing pelletised iron |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20110265603A1 (en) |
| JP (1) | JP2010189762A (en) |
| CN (1) | CN102272337A (en) |
| AU (1) | AU2010207300B2 (en) |
| CA (1) | CA2745763A1 (en) |
| RU (1) | RU2484145C2 (en) |
| WO (1) | WO2010084822A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5408369B2 (en) * | 2012-01-19 | 2014-02-05 | Ｊｆｅスチール株式会社 | Hot metal pretreatment method |
| WO2013129604A1 (en) * | 2012-02-28 | 2013-09-06 | 株式会社神戸製鋼所 | Process for manufacturing reduced iron agglomerates |
| JP6294152B2 (en) * | 2014-05-15 | 2018-03-14 | 株式会社神戸製鋼所 | Manufacturing method of granular metallic iron |
| JP6250482B2 (en) * | 2014-06-13 | 2017-12-20 | 株式会社神戸製鋼所 | Manufacturing method of granular metallic iron |
| JP6460531B2 (en) | 2015-05-28 | 2019-01-30 | 株式会社神戸製鋼所 | Method for producing reduced iron |
| JP7476871B2 (en) * | 2021-11-30 | 2024-05-01 | Ｊｆｅスチール株式会社 | Metal manufacturing methods |
| JP7476872B2 (en) * | 2021-11-30 | 2024-05-01 | Ｊｆｅスチール株式会社 | Metal manufacturing methods |
| CN118302544A (en) * | 2021-11-30 | 2024-07-05 | 杰富意钢铁株式会社 | Method for producing metallic iron |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY126384A (en) * | 1996-01-26 | 2006-09-29 | Nippon Steel Corp | Operation method of vertical furnace |
| JP3845893B2 (en) * | 1996-03-15 | 2006-11-15 | 株式会社神戸製鋼所 | Metal iron manufacturing method |
| IL120440A0 (en) * | 1996-03-15 | 1997-07-13 | Kobe Steel Ltd | Method and apparatus for making metallic iron |
| JP3513832B2 (en) * | 1997-09-30 | 2004-03-31 | Ｊｆｅスチール株式会社 | Operating method of movable hearth furnace and movable hearth furnace |
| BR9806224A (en) * | 1997-09-30 | 2000-04-18 | Kawasaki Steel Co | Rotary hearth furnace to reduce oxides and its operating method. |
| JP3004255B2 (en) * | 1997-11-27 | 2000-01-31 | 株式会社神戸製鋼所 | Method for producing reduced iron |
| JP4572435B2 (en) * | 1999-12-24 | 2010-11-04 | Ｊｆｅスチール株式会社 | Method for producing reduced iron from iron-containing material |
| EP1187941B1 (en) * | 2000-03-30 | 2007-01-03 | Kabushiki Kaisha Kobe Seiko Sho | Method of producing metallic iron |
| JP2001323310A (en) * | 2000-05-15 | 2001-11-22 | Kobe Steel Ltd | Method for producing reduced iron |
| JP4757982B2 (en) * | 2000-06-28 | 2011-08-24 | 株式会社神戸製鋼所 | Method for improving the yield of granular metallic iron |
| JP4774611B2 (en) * | 2001-03-19 | 2011-09-14 | Ｊｆｅスチール株式会社 | Operation method of mobile hearth furnace |
| JP4691827B2 (en) * | 2001-05-15 | 2011-06-01 | 株式会社神戸製鋼所 | Granular metal iron |
| JP2007246970A (en) * | 2006-03-15 | 2007-09-27 | Jfe Steel Kk | Operation method of mobile hearth furnace |
| JP4976822B2 (en) * | 2006-11-14 | 2012-07-18 | 株式会社神戸製鋼所 | Production method and apparatus of granular metallic iron |
-
2010
- 2010-01-15 US US13/142,368 patent/US20110265603A1/en not_active Abandoned
- 2010-01-15 CN CN201080004143XA patent/CN102272337A/en active Pending
- 2010-01-15 RU RU2011135038/02A patent/RU2484145C2/en not_active IP Right Cessation
- 2010-01-15 AU AU2010207300A patent/AU2010207300B2/en not_active Ceased
- 2010-01-15 CA CA2745763A patent/CA2745763A1/en not_active Abandoned
- 2010-01-15 WO PCT/JP2010/050373 patent/WO2010084822A1/en not_active Ceased
- 2010-01-22 JP JP2010012537A patent/JP2010189762A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN102272337A (en) | 2011-12-07 |
| WO2010084822A1 (en) | 2010-07-29 |
| RU2484145C2 (en) | 2013-06-10 |
| US20110265603A1 (en) | 2011-11-03 |
| AU2010207300A1 (en) | 2011-06-23 |
| CA2745763A1 (en) | 2010-07-29 |
| AU2010207300B2 (en) | 2013-05-09 |
| JP2010189762A (en) | 2010-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20190116 |