JPS57188607A - Fluidized-bed reducing method for iron ore for manufacturing reduced iron and fuel gas simultaneously - Google Patents
Fluidized-bed reducing method for iron ore for manufacturing reduced iron and fuel gas simultaneouslyInfo
- Publication number
- JPS57188607A JPS57188607A JP7132381A JP7132381A JPS57188607A JP S57188607 A JPS57188607 A JP S57188607A JP 7132381 A JP7132381 A JP 7132381A JP 7132381 A JP7132381 A JP 7132381A JP S57188607 A JPS57188607 A JP S57188607A
- Authority
- JP
- Japan
- Prior art keywords
- supplied
- reaction tower
- fuel gas
- supply opening
- 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
- C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
Abstract
PURPOSE:To control the produced amounts of reduced iron and fuel gas optionally and respectively by regulating the amounts of coke supplied to a reducing reaction tower and a combustion reaction tower respectively. CONSTITUTION:A reducing reaction tower 1 is supplied with iron ore from a supply opening 3, coke from a supply opening 4, and reducing gas from a supply opening 5, and a combustion reaction tower 2 is supplied with a carbon material such as coke from a supply opening 7 and oxygen and steam upon occasion from a supply opening 6 to burn the carbonaceous material, thereby producing particles of a fluid heat medium made of the carbonaceous material. Those particles are circulated in communicating pipes 9 and 10 and returned to both the reaction towers 1 and 2, and the fluidized- bed reduction of the iron ore is performed in the reducing reaction tower 1. At this time, gases produced in both the reaction towers 1 and 2 are led out together from a discharge opening 13, and part of the gaseous mixture is increased pressure by a gaseous pressure boosting machine 16 and then supplied as reducing gas to the reducing reaction tower 1. The remaining gas is led out of the system as fuel gas. The amount of this fuel gas and that of reduced iron discharged through the discharge opening 8 of the tower 1 are controlled by regulating the amounts of coke supplied to both towers 1 and 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7132381A JPS5919965B2 (en) | 1981-05-14 | 1981-05-14 | Fluid reduction method for iron ore that simultaneously produces reduced iron and fuel gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7132381A JPS5919965B2 (en) | 1981-05-14 | 1981-05-14 | Fluid reduction method for iron ore that simultaneously produces reduced iron and fuel gas |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57188607A true JPS57188607A (en) | 1982-11-19 |
JPS5919965B2 JPS5919965B2 (en) | 1984-05-10 |
Family
ID=13457237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7132381A Expired JPS5919965B2 (en) | 1981-05-14 | 1981-05-14 | Fluid reduction method for iron ore that simultaneously produces reduced iron and fuel gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5919965B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0585190A1 (en) * | 1992-08-25 | 1994-03-02 | Sollac S.A. | Apparatus for the reduction of iron ores in a circulating fluidized bed |
WO2009007007A1 (en) | 2007-07-10 | 2009-01-15 | Outotec Oyj | Process and plant for reducing solids containing iron oxide |
-
1981
- 1981-05-14 JP JP7132381A patent/JPS5919965B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0585190A1 (en) * | 1992-08-25 | 1994-03-02 | Sollac S.A. | Apparatus for the reduction of iron ores in a circulating fluidized bed |
FR2695141A1 (en) * | 1992-08-25 | 1994-03-04 | Lorraine Laminage | Iron ore reduction plant using a circulating fluidized bed. |
WO2009007007A1 (en) | 2007-07-10 | 2009-01-15 | Outotec Oyj | Process and plant for reducing solids containing iron oxide |
EA016472B1 (en) * | 2007-07-10 | 2012-05-30 | Оутотек Ойй | Process and plant for reducing solids containing iron oxide |
Also Published As
Publication number | Publication date |
---|---|
JPS5919965B2 (en) | 1984-05-10 |
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