JPS55104414A - Shaft furnace for iron ore reduction - Google Patents

Shaft furnace for iron ore reduction

Info

Publication number
JPS55104414A
JPS55104414A JP959679A JP959679A JPS55104414A JP S55104414 A JPS55104414 A JP S55104414A JP 959679 A JP959679 A JP 959679A JP 959679 A JP959679 A JP 959679A JP S55104414 A JPS55104414 A JP S55104414A
Authority
JP
Japan
Prior art keywords
region
reducibility
plug
shaft furnace
formation
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
JP959679A
Other languages
Japanese (ja)
Other versions
JPS5734323B2 (en
Inventor
Hiroyuki Kohama
Masaru Tamiya
Shunichi Mizukami
Dentaro Kaneko
Yoshio Kimura
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP959679A priority Critical patent/JPS55104414A/en
Priority to DE3003056A priority patent/DE3003056C2/en
Priority to US06/116,458 priority patent/US4380328A/en
Publication of JPS55104414A publication Critical patent/JPS55104414A/en
Publication of JPS5734323B2 publication Critical patent/JPS5734323B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To prevent the formation of clusters and stabilize operations by breaking the plug-flow state which becomes the cause for cluster formation in the region of reducibility 50-70% where cluster formation begins during operation of the shaft furnace for iron core reduction. CONSTITUTION:In direct iron making in the shaft furnace for iron core reduction, the region of the reducibility 50-70% in the furnace is in the plug-flow region PF where cluster rings are likely to form. To avert the cluster rings, the plug-flow state is broken to keep the PF above the 50-70% reducibility region. To this end, the fluid dross region RF is raised to above the 50-70% reducibility region by such a method as a burden feeder 1 or baffle plate 3, mixing vanes 4 to limit the plug-flow region PF to the upper part of the shaft furnace. As a result of this, the ore layers become the fluid dross region where they descend with the mutual rotating or linear relative motion in the region of reducibility 50-70%, whereby the formation of clusters is inhibited and the furnace conditions are stabilized.
JP959679A 1979-01-29 1979-01-29 Shaft furnace for iron ore reduction Granted JPS55104414A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP959679A JPS55104414A (en) 1979-01-29 1979-01-29 Shaft furnace for iron ore reduction
DE3003056A DE3003056C2 (en) 1979-01-29 1980-01-29 Shaft furnace
US06/116,458 US4380328A (en) 1979-01-29 1980-01-29 Shaft furnace for reducing ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP959679A JPS55104414A (en) 1979-01-29 1979-01-29 Shaft furnace for iron ore reduction

Publications (2)

Publication Number Publication Date
JPS55104414A true JPS55104414A (en) 1980-08-09
JPS5734323B2 JPS5734323B2 (en) 1982-07-22

Family

ID=11724697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP959679A Granted JPS55104414A (en) 1979-01-29 1979-01-29 Shaft furnace for iron ore reduction

Country Status (1)

Country Link
JP (1) JPS55104414A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504025A1 (en) * 1981-04-15 1982-10-22 Hylsa Sa IMPROVED APPARATUS FOR SEPARATING AGGLOMERATED PARTICULATE MATERIAL
JP2002538304A (en) * 1999-03-03 2002-11-12 ヴォエスト・アルピーネ・インデュストリーアンラーゲンバウ・ゲーエムベーハー Method for optimizing the construction and treatment of a reduction process for iron-containing charges
CN102767944A (en) * 2012-06-26 2012-11-07 长兴鼎力窑炉设备厂 Mixed hydrogen reduction furnace and use method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4861303A (en) * 1971-10-15 1973-08-28
JPS51101704A (en) * 1975-03-06 1976-09-08 Kogyo Gijutsuin KANGENTET SUSEIZO YOSHAFUTORO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4861303A (en) * 1971-10-15 1973-08-28
JPS51101704A (en) * 1975-03-06 1976-09-08 Kogyo Gijutsuin KANGENTET SUSEIZO YOSHAFUTORO

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504025A1 (en) * 1981-04-15 1982-10-22 Hylsa Sa IMPROVED APPARATUS FOR SEPARATING AGGLOMERATED PARTICULATE MATERIAL
JP2002538304A (en) * 1999-03-03 2002-11-12 ヴォエスト・アルピーネ・インデュストリーアンラーゲンバウ・ゲーエムベーハー Method for optimizing the construction and treatment of a reduction process for iron-containing charges
JP4741084B2 (en) * 1999-03-03 2011-08-03 シーメンス・ファオアーイー・メタルズ・テクノロジーズ・ゲーエムベーハー Methods for optimizing the composition and operation of reduction processes for iron-containing charge materials
CN102767944A (en) * 2012-06-26 2012-11-07 长兴鼎力窑炉设备厂 Mixed hydrogen reduction furnace and use method thereof

Also Published As

Publication number Publication date
JPS5734323B2 (en) 1982-07-22

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