KR950014067B1 - Iron ore fluidized bed reduction furnace - Google Patents

Iron ore fluidized bed reduction furnace Download PDF

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Publication number
KR950014067B1
KR950014067B1 KR93031097A KR930031097A KR950014067B1 KR 950014067 B1 KR950014067 B1 KR 950014067B1 KR 93031097 A KR93031097 A KR 93031097A KR 930031097 A KR930031097 A KR 930031097A KR 950014067 B1 KR950014067 B1 KR 950014067B1
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KR
South Korea
Prior art keywords
reduction furnace
iron ore
cyclone
fluidized bed
bed reduction
Prior art date
Application number
KR93031097A
Other languages
Korean (ko)
Other versions
KR950018549A (en
Inventor
Yong-Ha Kim
Il-Ok Lee
Mun-Dok Park
Original Assignee
Posco
Rist
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 Posco, Rist filed Critical Posco
Priority to KR93031097A priority Critical patent/KR950014067B1/en
Publication of KR950018549A publication Critical patent/KR950018549A/en
Application granted granted Critical
Publication of KR950014067B1 publication Critical patent/KR950014067B1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

The reduction furnace produces uniform reduced iron irrespective of the size of iron ore and improves the rate of gas usage by double reduction processes using reducing waste gases. The reduction furnace system comprises (A) the first reduction furnace(10) to reduce iron ore powder from hopper(70) with waste gas from the second cyclone(60); (B) the second reduction furnace(20) to form vapor fluidized layer; (C) the third reduction furnace(30) to reduce fine iron ore power; (D) inner cyclone(50) and the second cyclone(60) to collect the iron ore powder to circulate it.
KR93031097A 1993-12-29 1993-12-29 Iron ore fluidized bed reduction furnace KR950014067B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93031097A KR950014067B1 (en) 1993-12-29 1993-12-29 Iron ore fluidized bed reduction furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93031097A KR950014067B1 (en) 1993-12-29 1993-12-29 Iron ore fluidized bed reduction furnace

Publications (2)

Publication Number Publication Date
KR950018549A KR950018549A (en) 1995-07-22
KR950014067B1 true KR950014067B1 (en) 1995-11-21

Family

ID=19374107

Family Applications (1)

Application Number Title Priority Date Filing Date
KR93031097A KR950014067B1 (en) 1993-12-29 1993-12-29 Iron ore fluidized bed reduction furnace

Country Status (1)

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KR (1) KR950014067B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200008884A (en) * 2018-07-17 2020-01-29 한국원자력연구원 Apparatus for reducing spent nuclear fuel oxide and method for reducing spent nuclear fuel oxide using the apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200008884A (en) * 2018-07-17 2020-01-29 한국원자력연구원 Apparatus for reducing spent nuclear fuel oxide and method for reducing spent nuclear fuel oxide using the apparatus

Also Published As

Publication number Publication date
KR950018549A (en) 1995-07-22

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