JP4325401B2 - 低シリコン溶銑の製造方法 - Google Patents

低シリコン溶銑の製造方法 Download PDF

Info

Publication number
JP4325401B2
JP4325401B2 JP2003562340A JP2003562340A JP4325401B2 JP 4325401 B2 JP4325401 B2 JP 4325401B2 JP 2003562340 A JP2003562340 A JP 2003562340A JP 2003562340 A JP2003562340 A JP 2003562340A JP 4325401 B2 JP4325401 B2 JP 4325401B2
Authority
JP
Japan
Prior art keywords
hot metal
slag
blast furnace
mass
furnace
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.)
Expired - Lifetime
Application number
JP2003562340A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2003062473A1 (ja
Inventor
真二 松原
祥和 早坂
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.)
JFE Steel Corp
Original Assignee
JFE 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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of JPWO2003062473A1 publication Critical patent/JPWO2003062473A1/ja
Application granted granted Critical
Publication of JP4325401B2 publication Critical patent/JP4325401B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B5/00Making pig-iron in the blast furnace
    • C21B5/02Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
    • C21B5/023Injection of the additives into the melting part
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B5/00Making pig-iron in the blast furnace

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
JP2003562340A 2002-01-24 2003-01-23 低シリコン溶銑の製造方法 Expired - Lifetime JP4325401B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002015702 2002-01-24
JP2002015702 2002-01-24
PCT/JP2003/000587 WO2003062473A1 (fr) 2002-01-24 2003-01-23 Procede de production de metal liquide a faible teneur en silicium

Publications (2)

Publication Number Publication Date
JPWO2003062473A1 JPWO2003062473A1 (ja) 2005-05-26
JP4325401B2 true JP4325401B2 (ja) 2009-09-02

Family

ID=27606118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003562340A Expired - Lifetime JP4325401B2 (ja) 2002-01-24 2003-01-23 低シリコン溶銑の製造方法

Country Status (6)

Country Link
JP (1) JP4325401B2 (pt)
KR (1) KR100611167B1 (pt)
CN (1) CN1615370A (pt)
BR (1) BR0307107A (pt)
TW (1) TWI223006B (pt)
WO (1) WO2003062473A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4751180B2 (ja) * 2005-10-31 2011-08-17 新日本製鐵株式会社 高炉操業方法
JP7130898B2 (ja) 2019-03-28 2022-09-06 株式会社神戸製鋼所 高炉の操業方法
CN111057807B (zh) * 2020-01-07 2021-08-17 武钢集团昆明钢铁股份有限公司 一种超低硅低硫合格生铁的冶炼方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03215620A (ja) * 1990-01-19 1991-09-20 Nkk Corp 高炉へのフラックス吹込み方法
JP3238037B2 (ja) * 1994-10-05 2001-12-10 新日本製鐵株式会社 高炉の操業法
JP3874313B2 (ja) * 1996-07-16 2007-01-31 新日本製鐵株式会社 高炉操業方法
JPH1129803A (ja) * 1997-07-10 1999-02-02 Nippon Steel Corp 高被還元性焼結鉱を使用した高炉操業方法
JP4598204B2 (ja) * 1997-07-23 2010-12-15 新日本製鐵株式会社 微粉炭多量吹き込み時の高炉操業方法
JP2001107114A (ja) * 1999-10-06 2001-04-17 Nippon Steel Corp 高被還元性焼結鉱を使用した高炉操業方法

Also Published As

Publication number Publication date
CN1615370A (zh) 2005-05-11
WO2003062473A1 (fr) 2003-07-31
KR100611167B1 (ko) 2006-08-09
TW200302284A (en) 2003-08-01
TWI223006B (en) 2004-11-01
KR20040071287A (ko) 2004-08-11
BR0307107A (pt) 2004-12-28
JPWO2003062473A1 (ja) 2005-05-26

Similar Documents

Publication Publication Date Title
EP2210959B1 (en) Process for producing molten iron
JP4325401B2 (ja) 低シリコン溶銑の製造方法
JP4325128B2 (ja) 高炉への微粉炭多量吹込みにおける低シリコン操業方法
JP2004263258A (ja) 高炉の操業方法
JP3964963B2 (ja) 高炉における微粉炭吹込み方法
JP2983087B2 (ja) 溶融還元の操業方法
JP2933809B2 (ja) 移動層型スクラップ溶融炉の操業方法
JPH0913107A (ja) 高炉操業方法
JP2004027265A (ja) 微粉炭吹き込みを行う高炉の操業方法
JPH06108126A (ja) 高炉操業法
JPH07278624A (ja) 高炉における微粉炭多量吹込み操業方法
JP5400600B2 (ja) 高炉操業方法
KR100356156B1 (ko) 고로의연소효율향상방법
JP4585075B2 (ja) 金属鉄系原料を用いた高炉操業方法
JPH04110405A (ja) 高炉操業方法
JPH04268001A (ja) 高炉操業法
JP2837282B2 (ja) 含クロム溶銑の製造方法
JPH07146072A (ja) キュポラ型スクラップ溶融炉
JPH09170008A (ja) 高炉における微粉炭多量吹込み操業方法
JPH11310808A (ja) 高炉の操業方法
JP2002020810A (ja) 高炉操業方法
JP2002060809A (ja) 化学組成を調整した焼結鉱を使用する低炉熱高炉操業方法
JPH05287338A (ja) 高炉操業法
JPH05255718A (ja) 高炉操業法
JPH0637646B2 (ja) 高炉での低Si濃度溶銑の製造方法

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051026

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20060921

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081209

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090205

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090519

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090601

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120619

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4325401

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120619

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130619

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140619

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term