JPS5569210A - Shaft type reducing furnace - Google Patents
Shaft type reducing furnaceInfo
- Publication number
- JPS5569210A JPS5569210A JP14224378A JP14224378A JPS5569210A JP S5569210 A JPS5569210 A JP S5569210A JP 14224378 A JP14224378 A JP 14224378A JP 14224378 A JP14224378 A JP 14224378A JP S5569210 A JPS5569210 A JP S5569210A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- distributor
- segregation
- uniform
- reducing
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
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 prevent the segregation of powdered ore and to make the degree of draft in section uniform and also, to improve the reduction ratio and yield, by providing conical raw material distributor against each raw material feeding tube relatively just under the raw material feeding apparatus of shaft type reducing furnace. CONSTITUTION:The conical raw material distributor 20 is provided against the raw material feeding tube 6 of shaft type reducing furnace relatively. Bottom outer diameter of the distributor 20 is made larger than the inner diameter of the tube 6. Ring diameter of the ring-shaped segregation layer 9 dropping near the wall of the tube 6 by segregation, is made large by the distributor 20 and segregation concentration is decreased and at the same time, descending powdered ore is spread and distributed over the surrounding part 24 by the accelerated reducing flow 23 rising up in the furnace and the gas flow 22 escaped from the vacant space part 21 just under the distributor 20 etc. Thus, the degree of draft is made uniform in section and uniform reducing reaction is carried out and then, yield of product is able to improve because reduced iron having uniform reducing ratio, is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14224378A JPS5931566B2 (en) | 1978-11-20 | 1978-11-20 | Shaft type reduction furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14224378A JPS5931566B2 (en) | 1978-11-20 | 1978-11-20 | Shaft type reduction furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5569210A true JPS5569210A (en) | 1980-05-24 |
JPS5931566B2 JPS5931566B2 (en) | 1984-08-02 |
Family
ID=15310762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14224378A Expired JPS5931566B2 (en) | 1978-11-20 | 1978-11-20 | Shaft type reduction furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5931566B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1205561A1 (en) * | 2000-11-14 | 2002-05-15 | Danieli & C. Officine Meccaniche SpA | Furnace for the direct reduction of iron oxides and method for the manufacturing of iron |
WO2014060996A1 (en) * | 2012-10-18 | 2014-04-24 | Tenova Pyromet (Proprietary) Limited | Heating apparatus and gas distributor for use in the heating apparatus |
-
1978
- 1978-11-20 JP JP14224378A patent/JPS5931566B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1205561A1 (en) * | 2000-11-14 | 2002-05-15 | Danieli & C. Officine Meccaniche SpA | Furnace for the direct reduction of iron oxides and method for the manufacturing of iron |
WO2014060996A1 (en) * | 2012-10-18 | 2014-04-24 | Tenova Pyromet (Proprietary) Limited | Heating apparatus and gas distributor for use in the heating apparatus |
CN105143802A (en) * | 2012-10-18 | 2015-12-09 | 特诺恩矿产私人有限公司 | Heating apparatus and gas distributor for use in the heating apparatus |
EA027331B1 (en) * | 2012-10-18 | 2017-07-31 | Тенова Минералз (Пти) Лтд. | Heating apparatus and gas distributor for use therein |
Also Published As
Publication number | Publication date |
---|---|
JPS5931566B2 (en) | 1984-08-02 |
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