JPS54155917A - Fluidized bed reducing apparatus for iron ore - Google Patents

Fluidized bed reducing apparatus for iron ore

Info

Publication number
JPS54155917A
JPS54155917A JP6431578A JP6431578A JPS54155917A JP S54155917 A JPS54155917 A JP S54155917A JP 6431578 A JP6431578 A JP 6431578A JP 6431578 A JP6431578 A JP 6431578A JP S54155917 A JPS54155917 A JP S54155917A
Authority
JP
Japan
Prior art keywords
ore
fluidized bed
iron ore
gas
fine iron
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.)
Pending
Application number
JP6431578A
Other languages
Japanese (ja)
Inventor
Noboru Magaki
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 JP6431578A priority Critical patent/JPS54155917A/en
Publication of JPS54155917A publication Critical patent/JPS54155917A/en
Pending legal-status Critical Current

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  • Manufacture Of Iron (AREA)

Abstract

PURPOSE: To improve the ore reducing power of the title and apparatus enhance the reduced iron productivity per unit area of the fluidized bed by supplying fine iron ore heated to a high temp. to the long trough-shaped fluidized bed and by blowing a hot reducing gas from the bed bottom to form a reducing fluidized layer.
CONSTITUTION: Fine iron ore (a) preheated to above 500°C and roasted is charged into raw material hopper 1 and supplied to fluidized bed 3 with feeder 2 at a constant rate. On the other hand, reducing gas (d) based on CO and H2 is heated to above 500°C, fed to small chambers 10 through introduction pipe 7 and branch pipes 8, and blown upward from many small holes of porous plate 11. Fine iron ore (b) forms a fluidized layer together with gas (d) and moves to the left side while being reduced with the gas. The ore enters collecting hopper 5 over overflow weir 4 and is taken out as reduced iron (c) with discharger 6. The residence time of fine iron ore in the fluidized bed chamber is constant, the ore well contacts to the reducing gas, and reduced iron of high reduction ratio is manufactured efficiently.
COPYRIGHT: (C)1979,JPO&Japio
JP6431578A 1978-05-31 1978-05-31 Fluidized bed reducing apparatus for iron ore Pending JPS54155917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6431578A JPS54155917A (en) 1978-05-31 1978-05-31 Fluidized bed reducing apparatus for iron ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6431578A JPS54155917A (en) 1978-05-31 1978-05-31 Fluidized bed reducing apparatus for iron ore

Publications (1)

Publication Number Publication Date
JPS54155917A true JPS54155917A (en) 1979-12-08

Family

ID=13254671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6431578A Pending JPS54155917A (en) 1978-05-31 1978-05-31 Fluidized bed reducing apparatus for iron ore

Country Status (1)

Country Link
JP (1) JPS54155917A (en)

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