LU504480B1 - Production device for direct reduced iron - Google Patents
Production device for direct reduced iron Download PDFInfo
- Publication number
- LU504480B1 LU504480B1 LU504480A LU504480A LU504480B1 LU 504480 B1 LU504480 B1 LU 504480B1 LU 504480 A LU504480 A LU 504480A LU 504480 A LU504480 A LU 504480A LU 504480 B1 LU504480 B1 LU 504480B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- section
- furnace
- reduction
- cooling
- reduction furnace
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 230000009467 reduction Effects 0.000 claims abstract description 103
- 239000007789 gas Substances 0.000 claims abstract description 61
- 238000001816 cooling Methods 0.000 claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 18
- 230000007704 transition Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 7
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 description 17
- 229910052739 hydrogen Inorganic materials 0.000 description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 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
- C21B13/0073—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
-
- 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
- C21B13/029—Introducing coolant gas in the shaft 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
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310575076.6A CN116516093B (zh) | 2023-05-22 | 2023-05-22 | 一种直接还原铁的生产装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU504480B1 true LU504480B1 (en) | 2023-12-13 |
Family
ID=87392114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504480A LU504480B1 (en) | 2023-05-22 | 2023-06-12 | Production device for direct reduced iron |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116516093B (zh) |
| LU (1) | LU504480B1 (zh) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6602317B2 (en) * | 1997-09-05 | 2003-08-05 | Midrex International, B.V. Rotterdam, Zurich Branch | Method and apparatus for controlling temperature uniformity of the burden in a direct reduction shaft furnace |
| ITMI20050731A1 (it) * | 2005-04-22 | 2006-10-23 | Danieli Off Mecc | Forno di riduzione |
| CN104293998A (zh) * | 2014-07-18 | 2015-01-21 | 北京神雾环境能源科技集团股份有限公司 | 气基竖炉制备海绵铁的方法和系统 |
| CN205170893U (zh) * | 2015-12-10 | 2016-04-20 | 爱润森德（天津）能源科技有限公司 | 一种直接还原铁的生产系统 |
| CN107974525A (zh) * | 2017-12-08 | 2018-05-01 | 江苏省冶金设计院有限公司 | 一种还原竖炉 |
| CN111926135B (zh) * | 2020-07-14 | 2022-03-29 | 钢研晟华科技股份有限公司 | 一种氢基竖炉直接还原系统及还原方法 |
| CN115449580A (zh) * | 2022-08-31 | 2022-12-09 | 河北张宣高科科技有限公司 | 全部采用焦炉煤气的零碳排放直接还原系统及工艺 |
-
2023
- 2023-05-22 CN CN202310575076.6A patent/CN116516093B/zh active Active
- 2023-06-12 LU LU504480A patent/LU504480B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CN116516093A (zh) | 2023-08-01 |
| CN116516093B (zh) | 2024-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20231213 |