CA3191576A1 - Boulettes de minerai de fer et procede de fabrication de boulettes de minerai de fer - Google Patents
Boulettes de minerai de fer et procede de fabrication de boulettes de minerai de ferInfo
- Publication number
- CA3191576A1 CA3191576A1 CA3191576A CA3191576A CA3191576A1 CA 3191576 A1 CA3191576 A1 CA 3191576A1 CA 3191576 A CA3191576 A CA 3191576A CA 3191576 A CA3191576 A CA 3191576A CA 3191576 A1 CA3191576 A1 CA 3191576A1
- Authority
- CA
- Canada
- Prior art keywords
- iron ore
- ore pellets
- equal
- pellets
- porosity
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 297
- 239000008188 pellet Substances 0.000 title claims abstract description 156
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 149
- 238000004519 manufacturing process Methods 0.000 title claims description 26
- 239000011148 porous material Substances 0.000 claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000011230 binding agent Substances 0.000 claims description 25
- 239000002994 raw material Substances 0.000 claims description 13
- 238000010304 firing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000000571 coke Substances 0.000 abstract description 18
- 230000009467 reduction Effects 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 31
- 238000010438 heat treatment Methods 0.000 description 16
- 230000007423 decrease Effects 0.000 description 11
- 230000003247 decreasing effect Effects 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 239000000112 cooling gas Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 240000003183 Manihot esculenta Species 0.000 description 2
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 2
- 244000061456 Solanum tuberosum Species 0.000 description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008120 corn starch Substances 0.000 description 2
- 229940099112 cornstarch Drugs 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000011163 secondary particle Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 244000303965 Cyamopsis psoralioides Species 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/216—Sintering; Agglomerating in rotary furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Abstract
L'objectif de la présente invention est de fournir des boulettes de minerai de fer dont les propriétés permettent d'obtenir une réduction supplémentaire de la quantité de coke à utiliser lors du fonctionnement du haut-fourneau. Les boulettes de minerai de fer, selon un mode de réalisation de la présente invention, sont utilisées pour le fonctionnement du haut-fourneau. Des pores ouverts grossiers présentant un diamètre de pore supérieur ou égal à 4 µm présentent une porosité supérieure ou égale à 21 %, et les boulettes présentent une résistance à l'écrasement supérieure ou égale à 180 kg/P.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020148362A JP7374870B2 (ja) | 2020-09-03 | 2020-09-03 | 鉄鉱石ペレット |
| JP2020-148362 | 2020-09-03 | ||
| PCT/JP2020/036959 WO2022049781A1 (fr) | 2020-09-03 | 2020-09-29 | Boulettes de minerai de fer et procédé de fabrication de boulettes de minerai de fer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3191576A1 true CA3191576A1 (fr) | 2022-03-10 |
Family
ID=80490938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3191576A Pending CA3191576A1 (fr) | 2020-09-03 | 2020-09-29 | Boulettes de minerai de fer et procede de fabrication de boulettes de minerai de fer |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP7374870B2 (fr) |
| CN (1) | CN115989329A (fr) |
| BR (1) | BR112023002390A2 (fr) |
| CA (1) | CA3191576A1 (fr) |
| CL (1) | CL2023000628A1 (fr) |
| SE (1) | SE2350133A1 (fr) |
| WO (1) | WO2022049781A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024028922A1 (fr) * | 2022-08-01 | 2024-02-08 | Ｊｆｅスチール株式会社 | Granulés non cuits pour réduction et leur procédé de fabrication |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55154534A (en) * | 1979-04-12 | 1980-12-02 | Kobe Steel Ltd | Iron ore porous pellet and its manufacture |
| JPS56119742A (en) * | 1980-02-25 | 1981-09-19 | Kobe Steel Ltd | Manufacture of iron ore pellet |
| JP4125928B2 (ja) | 2002-08-21 | 2008-07-30 | 新日本製鐵株式会社 | 製鉄用造粒剤及びその製造方法 |
| CN105441670A (zh) | 2015-11-25 | 2016-03-30 | 北京首钢国际工程技术有限公司 | 一种链-回-环系统生产高配比赤铁矿球团的工艺 |
-
2020
- 2020-09-03 JP JP2020148362A patent/JP7374870B2/ja active Active
- 2020-09-29 CN CN202080103500.1A patent/CN115989329A/zh active Pending
- 2020-09-29 BR BR112023002390A patent/BR112023002390A2/pt unknown
- 2020-09-29 CA CA3191576A patent/CA3191576A1/fr active Pending
- 2020-09-29 SE SE2350133A patent/SE2350133A1/en unknown
- 2020-09-29 WO PCT/JP2020/036959 patent/WO2022049781A1/fr active Application Filing
-
2023
- 2023-03-03 CL CL2023000628A patent/CL2023000628A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN115989329A (zh) | 2023-04-18 |
| WO2022049781A1 (fr) | 2022-03-10 |
| BR112023002390A2 (pt) | 2023-03-21 |
| JP2022042777A (ja) | 2022-03-15 |
| SE2350133A1 (en) | 2023-02-13 |
| JP7374870B2 (ja) | 2023-11-07 |
| CL2023000628A1 (es) | 2023-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20230210 |
|
| EEER | Examination request |
Effective date: 20230210 |
|
| EEER | Examination request |
Effective date: 20230210 |
|
| EEER | Examination request |
Effective date: 20230210 |