JPS5518568A - Controlling method for fluidized bed type reducing process - Google Patents

Controlling method for fluidized bed type reducing process

Info

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
Application number
JP9128078A
Other languages
Japanese (ja)
Other versions
JPS6014805B2 (en
Inventor
Tetsuo Horie
Makoto Shimizu
Kazuyuki Ishino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP9128078A priority Critical patent/JPS6014805B2/en
Publication of JPS5518568A publication Critical patent/JPS5518568A/en
Publication of JPS6014805B2 publication Critical patent/JPS6014805B2/en
Expired legal-status Critical Current

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
JP9128078A 1978-07-26 1978-07-26 How to control floating reduction process Expired JPS6014805B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164009U (en) * 1988-04-30 1989-11-15

Cited By (3)

* Cited by examiner, † Cited by third party
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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