JPS5518568A - Controlling method for fluidized bed type reducing process - Google Patents
Controlling method for fluidized bed type reducing processInfo
- Publication number
- JPS5518568A JPS5518568A JP9128078A JP9128078A JPS5518568A JP S5518568 A JPS5518568 A JP S5518568A JP 9128078 A JP9128078 A JP 9128078A JP 9128078 A JP9128078 A JP 9128078A JP S5518568 A JPS5518568 A JP S5518568A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- fluidized bed
- ratio
- iron oxide
- oxide material
- 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
Abstract
PURPOSE: To improve the operational efficiency of the furnace, by measuring the mixing ratio between the iron oxide material and the carbonaceous reducing agent in the fluidized bed type reducing furnace, through the electric resistance of the fluidized bed of the furnace, and by controlling the ratio of two materials to be supplied so as to keep the ratio at the optimum value.
CONSTITUTION: The iron oxide material A and the granular carbonaceous reducing agent B like as the coke powder, etc., are charged into the fluidized bed type reducing furnace 1. The high temperature reducing gas C including CO is introduced into the furnace bottom. Whthin the furnace, the fluidized bed F of the iron oxide material A and the reducing agent B is formed by the gas C; the electric power is supplied from electrodes 9, 9, to the reducing agent B in the fluidized bed F for heating; hereby, the iron oxide material A is reduced and the reduced iron D is produced. Besides, CO2 produced from the reduction reaction is reduced to CO which is again introduced into the furnace bottom as the reducing gas C. The electric resistance of the fluidized bed and the ratio A/B of the fluidized bed F under the best furnace condition are previously measured and settled. On the way of the furnace operation, above electric resistance is frequently measured, and is held at the optimum value by controloling the charging ratio of raw materials A, B; hereby, the furnace is stably maintained at the best condition.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9128078A JPS6014805B2 (en) | 1978-07-26 | 1978-07-26 | How to control floating reduction process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9128078A JPS6014805B2 (en) | 1978-07-26 | 1978-07-26 | How to control floating reduction process |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5518568A true JPS5518568A (en) | 1980-02-08 |
JPS6014805B2 JPS6014805B2 (en) | 1985-04-16 |
Family
ID=14022040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9128078A Expired JPS6014805B2 (en) | 1978-07-26 | 1978-07-26 | How to control floating reduction process |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6014805B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63212012A (en) * | 1987-02-28 | 1988-09-05 | Fujisash Co | Aluminum shape stock extrusion rear face equipment and rear face processing method |
US5233749A (en) * | 1991-05-15 | 1993-08-10 | Nitto Kohki Co., Ltd. | Hydraulic actuator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01164009U (en) * | 1988-04-30 | 1989-11-15 |
-
1978
- 1978-07-26 JP JP9128078A patent/JPS6014805B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63212012A (en) * | 1987-02-28 | 1988-09-05 | Fujisash Co | Aluminum shape stock extrusion rear face equipment and rear face processing method |
JPH0242564B2 (en) * | 1987-02-28 | 1990-09-25 | ||
US5233749A (en) * | 1991-05-15 | 1993-08-10 | Nitto Kohki Co., Ltd. | Hydraulic actuator |
Also Published As
Publication number | Publication date |
---|---|
JPS6014805B2 (en) | 1985-04-16 |
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