CL2023000628A1 - Iron ore pellets and method of manufacturing iron ore pellets - Google Patents
Iron ore pellets and method of manufacturing iron ore pelletsInfo
- Publication number
- CL2023000628A1 CL2023000628A1 CL2023000628A CL2023000628A CL2023000628A1 CL 2023000628 A1 CL2023000628 A1 CL 2023000628A1 CL 2023000628 A CL2023000628 A CL 2023000628A CL 2023000628 A CL2023000628 A CL 2023000628A CL 2023000628 A1 CL2023000628 A1 CL 2023000628A1
- Authority
- CL
- Chile
- Prior art keywords
- iron ore
- ore pellets
- pellets
- manufacturing
- blast furnace
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 8
- 239000008188 pellet Substances 0.000 title abstract 5
- 229910052742 iron Inorganic materials 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000011148 porous material Substances 0.000 abstract 2
- 239000000571 coke Substances 0.000 abstract 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
Abstract
El objetivo de la presente invención es proporcionar pellets de mineral de hierro con propiedades para lograr una reducción adicional en la cantidad de coque a usar durante la operación en alto horno. Los pellets de mineral de hierro de acuerdo con una realización de la presente invención se usan para la operación en alto horno, en donde los poros abiertos gruesos con un diámetro de poro de 4 um o más grandes tienen una porosidad de 21% o más, y los pellets tienen una resistencia a la compresión de 180 kg/P o más.The objective of the present invention is to provide iron ore pellets with properties to achieve a further reduction in the amount of coke to be used during blast furnace operation. Iron ore pellets according to an embodiment of the present invention are used for blast furnace operation, wherein the coarse open pores with a pore diameter of 4 um or larger have a porosity of 21% or more, and the pellets have a compressive strength of 180 kg/P or more.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020148362A JP7374870B2 (en) | 2020-09-03 | 2020-09-03 | iron ore pellets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2023000628A1 true CL2023000628A1 (en) | 2023-09-15 |
Family
ID=80490938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2023000628A CL2023000628A1 (en) | 2020-09-03 | 2023-03-03 | Iron ore pellets and method of manufacturing iron ore pellets |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP7374870B2 (en) |
| CN (1) | CN115989329A (en) |
| BR (1) | BR112023002390A2 (en) |
| CA (1) | CA3191576A1 (en) |
| CL (1) | CL2023000628A1 (en) |
| SE (1) | SE2350133A1 (en) |
| WO (1) | WO2022049781A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024028922A1 (en) * | 2022-08-01 | 2024-02-08 | Ｊｆｅスチール株式会社 | Non-fired pellets for reduction, and method for manufacturing same |
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 (en) | 2002-08-21 | 2008-07-30 | 新日本製鐵株式会社 | Granulator for iron making and method for producing the same |
| CN105441670A (en) | 2015-11-25 | 2016-03-30 | 北京首钢国际工程技术有限公司 | Technology for producing high-proportion hematite pellets through chain-loop-ring system |
-
2020
- 2020-09-03 JP JP2020148362A patent/JP7374870B2/en active Active
- 2020-09-29 WO PCT/JP2020/036959 patent/WO2022049781A1/en active Application Filing
- 2020-09-29 CN CN202080103500.1A patent/CN115989329A/en active Pending
- 2020-09-29 CA CA3191576A patent/CA3191576A1/en active Pending
- 2020-09-29 BR BR112023002390A patent/BR112023002390A2/en unknown
- 2020-09-29 SE SE2350133A patent/SE2350133A1/en unknown
-
2023
- 2023-03-03 CL CL2023000628A patent/CL2023000628A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP7374870B2 (en) | 2023-11-07 |
| SE2350133A1 (en) | 2023-02-13 |
| JP2022042777A (en) | 2022-03-15 |
| CA3191576A1 (en) | 2022-03-10 |
| CN115989329A (en) | 2023-04-18 |
| WO2022049781A1 (en) | 2022-03-10 |
| BR112023002390A2 (en) | 2023-03-21 |
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