GB1092551A - Treating iron ore to produce a blast-furnace charge - Google Patents
Treating iron ore to produce a blast-furnace chargeInfo
- Publication number
- GB1092551A GB1092551A GB3120/65A GB312065A GB1092551A GB 1092551 A GB1092551 A GB 1092551A GB 3120/65 A GB3120/65 A GB 3120/65A GB 312065 A GB312065 A GB 312065A GB 1092551 A GB1092551 A GB 1092551A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pellets
- fraction
- fractions
- blast furnace
- kilned
- 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.)
- Expired
Links
Classifications
-
- 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
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/16—Preparation from compounds of sodium or potassium with amines and carbon dioxide
-
- 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
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A charge for a blast furnace is produced by separating particulate iron containing material, of which not more than 5% by weight of the particles are greater than 20 mm. in particle size, into at least one coarse fraction and a single fine fraction whose upper size limit is between 0.5 and 2 mm., this fine fraction being made into pellets which are subsequently kilned, the kilned pellets being suitable for feeding to a blast furnace. Separation may be effected in a hot-air classifier. If two fractions only are produced the coarse fraction may be sintered to render it suitable for feeding to a blast furnace, alternatively the coarse fraction may be separated in accordance with size to produce two fractions, the finer of these two fractions being sintered to render it suitable for feeding to a blast furnace. Where two coarse fractions are produced the coarsest fraction may be fed directly to a blast furnace or it may be kilned in a manner similar to that used for pellets of iron-containing material, the kilned material being suitable for feeding to a blast furnace. The coarsest fraction may be mixed with some green pellets containing iron and the mixture kilned in a rotary oven. The largest size for the finer of the two coarse fractions may be between 4 and 6 mm. The iron containing material is preferably mixed with hot dust containing iron before or during the separation into the various fractions. In the case of plastic ores, e.g. Minette ores, with or without iron-rich ores, e.g. haematitic and magnetitic ores, the fine fraction of upper size 0.5-2 mm. may be pelletized in drums and/or on trays utilizing water droplets to nucleate the pellets and a fine water spray to grow the pellets such that their moisture content is 14-16% by weight. With haematitic or magnetitic ores the fine fraction may be milled after drying,if necessary, before being made into pellets and the fine fraction may then be heated in a rotary furnace at 500 DEG C. for 10-20 minutes and then at 1000 DEG C. and at 1300 DEG C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU45292A LU45292A1 (en) | 1964-01-25 | 1964-01-25 | |
| LU47462A LU47462A1 (en) | 1964-11-27 | 1964-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1092551A true GB1092551A (en) | 1967-11-29 |
Family
ID=26639920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3120/65A Expired GB1092551A (en) | 1964-01-25 | 1965-01-25 | Treating iron ore to produce a blast-furnace charge |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE658089A (en) |
| FR (1) | FR1433399A (en) |
| GB (1) | GB1092551A (en) |
| NL (1) | NL6500898A (en) |
| SE (1) | SE302779B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887091A1 (en) * | 2005-05-10 | 2008-02-13 | Nippon Steel Corporation | Method for pretreatment of raw materials for sintering |
-
1965
- 1965-01-08 BE BE658089D patent/BE658089A/fr unknown
- 1965-01-22 SE SE890/65A patent/SE302779B/xx unknown
- 1965-01-23 FR FR3099A patent/FR1433399A/en not_active Expired
- 1965-01-25 NL NL6500898A patent/NL6500898A/xx unknown
- 1965-01-25 GB GB3120/65A patent/GB1092551A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887091A1 (en) * | 2005-05-10 | 2008-02-13 | Nippon Steel Corporation | Method for pretreatment of raw materials for sintering |
| EP1887091A4 (en) * | 2005-05-10 | 2009-02-25 | Nippon Steel Corp | Method for pretreatment of raw materials for sintering |
| EP2098601A1 (en) * | 2005-05-10 | 2009-09-09 | Nippon Steel Corporation | Method for pretreating granular iron ore materials for sintering |
| CN101184855B (en) * | 2005-05-10 | 2010-06-09 | 新日本制铁株式会社 | Method for pretreatment of raw materials for sintering |
| US8834596B2 (en) | 2005-05-10 | 2014-09-16 | Nippon Steel & Sumitomo Metal Corporation | Method for pretreating sintering material |
Also Published As
| Publication number | Publication date |
|---|---|
| BE658089A (en) | 1965-04-30 |
| NL6500898A (en) | 1965-07-26 |
| FR1433399A (en) | 1966-04-01 |
| SE302779B (en) | 1968-08-05 |
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