JPS5518569A - Controlling method for fluidized bed type reducing process - Google Patents
Controlling method for fluidized bed type reducing processInfo
- Publication number
- JPS5518569A JPS5518569A JP9128178A JP9128178A JPS5518569A JP S5518569 A JPS5518569 A JP S5518569A JP 9128178 A JP9128178 A JP 9128178A JP 9128178 A JP9128178 A JP 9128178A JP S5518569 A JPS5518569 A JP S5518569A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- gas
- fluidized bed
- gas velocity
- 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
Landscapes
- Manufacture Of Iron (AREA)
Abstract
PURPOSE: To improve the operational efficiency of the furnace, by simply finding the gas velocity in the fluidized bed type reducing furnace, through measuring the electric resistance of the fluidized bed of the furnace, and by controlling the gas velocity in the furnace so as to hold the optimum value.
CONSTITUTION: The iron oxide material A and the granular carbonaceous reducing agent B like as the coke, etc., are charged into the fluidized bed type reducing furnace 1. The high temperature reducing gas C including CO is blasted into the furnace bottom. The granular materials A, B, are fluidized by the reducing gas C flowing upward in the furnace, and the fluidized bed F is formed; and then, the electric power is supplied from electrodes 9, 9, to the reducing agent B for heating. The iron oxide material A is reduced to the reduced iron D. Besides, the CO2 gas generated from the reduction reaction is reduced to CO which is again blasted into the furnace bottom as the reducing gas C. The gas velocity in the furnace under the best condition is previously learned by measuring the electric resistance of the fluidized bed F by reason of its change proportional to the gas velocity. While the operation of the furnace, above electric resistance is continuously measured in order to operate the optimum gas velocity by the operator 11; the flow control valve 7 is adjusted so as to adjust the flow rate of the gas for making the gas velocity to be optimum.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9128178A JPS5943963B2 (en) | 1978-07-26 | 1978-07-26 | How to control floating reduction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9128178A JPS5943963B2 (en) | 1978-07-26 | 1978-07-26 | How to control floating reduction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5518569A true JPS5518569A (en) | 1980-02-08 |
| JPS5943963B2 JPS5943963B2 (en) | 1984-10-25 |
Family
ID=14022068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9128178A Expired JPS5943963B2 (en) | 1978-07-26 | 1978-07-26 | How to control floating reduction process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943963B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6127148U (en) * | 1984-07-23 | 1986-02-18 | ティーディーケイ株式会社 | toner sensor |
| JP7195710B2 (en) | 2017-04-28 | 2022-12-26 | 古河電気工業株式会社 | Copper alloy particles, surface-coated copper-based particles and mixed particles |
-
1978
- 1978-07-26 JP JP9128178A patent/JPS5943963B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5943963B2 (en) | 1984-10-25 |
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