JPS55152133A - Preparation of sintered ore - Google Patents

Preparation of sintered ore

Info

Publication number
JPS55152133A
JPS55152133A JP5869979A JP5869979A JPS55152133A JP S55152133 A JPS55152133 A JP S55152133A JP 5869979 A JP5869979 A JP 5869979A JP 5869979 A JP5869979 A JP 5869979A JP S55152133 A JPS55152133 A JP S55152133A
Authority
JP
Japan
Prior art keywords
ore
screen
return ore
compounded
return
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
JP5869979A
Other languages
Japanese (ja)
Other versions
JPS5717055B2 (en
Inventor
Kiyoshi Tashiro
Hideaki Soma
Yozo Hosoya
Masami Wajima
Tsukasa Takada
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP5869979A priority Critical patent/JPS55152133A/en
Publication of JPS55152133A publication Critical patent/JPS55152133A/en
Publication of JPS5717055B2 publication Critical patent/JPS5717055B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To improve the low temp. reduction powdering index and to reduce a slag amount by a method wherein a part of the return ore compounded in a compounding stock material in a concn. of about 20% is finely pulverized and CaO, SiO2 components which are constituting elements of bond are concentrated in a finely pulverized portion with a particle size of 1mm or less.
CONSTITUTION: In case of preparing the sintered ore by a Dwight and Lloyd type sintering machine 1, the exhausted sintered ore is screened on a screen 3 after cooled by a cooler 2 and the remaing portion on a screen is supplied as a product 4 into a blast furnace 13. The under screen portion is screened by a reclassifying screen 6 with a mesh size of above 1mm and 3.5mm or less and the upper screen portion is stored in a hopper 11A as a return ore 7 to be reclassified. The return ore 8 under a screen is treated by a crusher 9 and the crushed return ore 10 is stored in a hopper 11B. The return ore 7 to be reclassified, the crushed return ore 10 is compounded in a ratio corresponded to necessity and sent to a cut-out bin 15 as a compounding return ore 12 and compounded into a stock material 14 in a predetermined amount and mixed in a mixer 16 to be sent to a sintering machine 1 as a compounded stock material 17. Thereby, an SiO2 content of a sintered ore can be reduced to 5% or less.
COPYRIGHT: (C)1980,JPO&Japio
JP5869979A 1979-05-15 1979-05-15 Preparation of sintered ore Granted JPS55152133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5869979A JPS55152133A (en) 1979-05-15 1979-05-15 Preparation of sintered ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5869979A JPS55152133A (en) 1979-05-15 1979-05-15 Preparation of sintered ore

Publications (2)

Publication Number Publication Date
JPS55152133A true JPS55152133A (en) 1980-11-27
JPS5717055B2 JPS5717055B2 (en) 1982-04-08

Family

ID=13091767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5869979A Granted JPS55152133A (en) 1979-05-15 1979-05-15 Preparation of sintered ore

Country Status (1)

Country Link
JP (1) JPS55152133A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012528941A (en) * 2009-06-04 2012-11-15 ラインカルク ゲー エム ベー ハー Method for producing aggregate for raw materials charged in blast furnace from metal oxide-containing fine material
WO2019009289A1 (en) * 2017-07-04 2019-01-10 Ｊｆｅスチール株式会社 Method for producing sintered ore

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8303145A (en) * 1983-09-12 1985-04-01 Philips Nv ELECTRON TUBE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012528941A (en) * 2009-06-04 2012-11-15 ラインカルク ゲー エム ベー ハー Method for producing aggregate for raw materials charged in blast furnace from metal oxide-containing fine material
WO2019009289A1 (en) * 2017-07-04 2019-01-10 Ｊｆｅスチール株式会社 Method for producing sintered ore

Also Published As

Publication number Publication date
JPS5717055B2 (en) 1982-04-08

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