GB960982A - A method of operating furnaces for the production of steel, and the formation of pellets for use in such method - Google Patents
A method of operating furnaces for the production of steel, and the formation of pellets for use in such methodInfo
- Publication number
- GB960982A GB960982A GB3879062A GB3879062A GB960982A GB 960982 A GB960982 A GB 960982A GB 3879062 A GB3879062 A GB 3879062A GB 3879062 A GB3879062 A GB 3879062A GB 960982 A GB960982 A GB 960982A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pellets
- ore
- steel
- concentrates
- binder
- 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
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
-
- 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
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)
Abstract
High grade iron-ore concentrates containing at least 60% of iron are ground to a size analysis in which at least 70% is below 60 m and not more than 10% is over 250 m before forming into pellets which are used in the green unburnt state for controlling the temperature in a steel-making furnace. Alternatively 5-20% of the ore may be reduced to an analysis in which at least 90% is below 40 m and not more than 5% is over 60 m , and then mixed with the bulk of the ore having 30-65% below 60 m . A proportion of flue dust may be added to the concentrates; a binder, preferably slaked lime, may also be used, in which case the degree of size reduction necessary may be less. Other binders referred to are bentonite, fuller's earth and montmorillonite. The pellets are preferably dried by exhaust gases or hot air before use.ALSO:In the refining of steel, particularly in a converter, the temperature is controlled by the introduction of high-grade iron-ore concentrates in the form of green unburnt pellets. The pellets may also contain a proportion of flue dust, and may be formed with a binder such as slaked lime. They may be dried by waste furnace gases or by hot air before use.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM0051197 | 1961-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB960982A true GB960982A (en) | 1964-06-17 |
Family
ID=7307048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3879062A Expired GB960982A (en) | 1961-12-16 | 1962-10-12 | A method of operating furnaces for the production of steel, and the formation of pellets for use in such method |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT238744B (en) |
| BE (1) | BE624232A (en) |
| GB (1) | GB960982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2388053A1 (en) * | 1977-04-18 | 1978-11-17 | Nippon Steel Corp | PELLET MANUFACTURING PROCESS |
-
0
- BE BE624232D patent/BE624232A/xx unknown
-
1962
- 1962-10-12 GB GB3879062A patent/GB960982A/en not_active Expired
- 1962-10-23 AT AT838062A patent/AT238744B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2388053A1 (en) * | 1977-04-18 | 1978-11-17 | Nippon Steel Corp | PELLET MANUFACTURING PROCESS |
Also Published As
| Publication number | Publication date |
|---|---|
| BE624232A (en) | |
| AT238744B (en) | 1965-02-25 |
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