JPS6475611A - Charging method by separating charging material into grain sizes in blast furnace - Google Patents
Charging method by separating charging material into grain sizes in blast furnaceInfo
- Publication number
- JPS6475611A JPS6475611A JP23451987A JP23451987A JPS6475611A JP S6475611 A JPS6475611 A JP S6475611A JP 23451987 A JP23451987 A JP 23451987A JP 23451987 A JP23451987 A JP 23451987A JP S6475611 A JPS6475611 A JP S6475611A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- grain
- vessel
- fine grain
- conveyor
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
PURPOSE:To obtain ideal distributing type of coarse grain and fine grain by attached simple equipment, by classifying charging material on belt conveyor for charging in the blast furnace and separately charging the charging material into coase and fine grain sizes from furnace top. CONSTITUTION:One the way of the above conveyor 1 line, the head difference H is arranged, and by this method, the charging material 2 is horizontal 2 is horizontally flown by utilizing the inertia, and a grain size classifier 3 for classifying the charging material 2 into the coarse grain 2a and the fine grain 2b toward line direction by a partition plate 4 at dropping point thereof is arranged. After classifying by the classifier 3, further, the coarse grain 2a and the fine grain 2b are distributed toward width direction in the conveyor 1 and carried to furnace top of the blast furnace by the conveyor 1 and separately stored in each vessel 8, 9 of plural vessel fixed hopper 7. Next, each seal valve provided in the vessels, 8, 9 is opened/closed under time-lag for each vessel for each vessel to separately charge the coarse grain 2a and fine grain 2b. By this method, gas permeability and gas ratio are changed to good condition and synthetically fuel ratio can be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23451987A JPS6475611A (en) | 1987-09-18 | 1987-09-18 | Charging method by separating charging material into grain sizes in blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23451987A JPS6475611A (en) | 1987-09-18 | 1987-09-18 | Charging method by separating charging material into grain sizes in blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6475611A true JPS6475611A (en) | 1989-03-22 |
Family
ID=16972294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23451987A Pending JPS6475611A (en) | 1987-09-18 | 1987-09-18 | Charging method by separating charging material into grain sizes in blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6475611A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10952762B2 (en) | 2010-10-28 | 2021-03-23 | Covidien Lp | Material removal device and method of use |
-
1987
- 1987-09-18 JP JP23451987A patent/JPS6475611A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10952762B2 (en) | 2010-10-28 | 2021-03-23 | Covidien Lp | Material removal device and method of use |
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