JPS54137419A - Operation of blast furnace - Google Patents

Operation of blast furnace

Info

Publication number
JPS54137419A
JPS54137419A JP4617978A JP4617978A JPS54137419A JP S54137419 A JPS54137419 A JP S54137419A JP 4617978 A JP4617978 A JP 4617978A JP 4617978 A JP4617978 A JP 4617978A JP S54137419 A JPS54137419 A JP S54137419A
Authority
JP
Japan
Prior art keywords
slag
pig iron
manufacture
blast furnace
ore
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
JP4617978A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
Shiyou Fukihara
Kunio Matsumoto
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 JP4617978A priority Critical patent/JPS54137419A/en
Publication of JPS54137419A publication Critical patent/JPS54137419A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the operatonal cost of blast furnace as well as reduce the amount of slag formed wholly by using slag formed in the manufacture of Fe-Mn and Si-Mn instead of Mn ore in the operation of blast furnace.
CONSTITUTION: In the manufacture of pig iron containing 0.5 to 0.6% Mn, e.g., steel-making pig iron, normal steel casting pig iron, malleable iron-making pig iron, etc., slag formed in the manufacture of Fe-Mn and Si-Mn is used instead of Mn ore. The slag used in this case contains Mn>10% and Al2O3<15%. In case where the proportion of sintered ore in raw material is less in the manufacture of pig iron for steel making, Fe-Mn slag is used instead of a slag-forming agent, e.g., qualtz, lime, etc., and also in the manufacture of pig iron for steel casting, Si-Mn slag containing much SiO2 and less CaO is used because the Si content of pig iron is increased. Thus, Mn in slag can be recovered and also the slag is effectively utilized as a slag-forming agent, reducing the amount of slag to be discarded wholly.
COPYRIGHT: (C)1979,JPO&Japio
JP4617978A 1978-04-18 1978-04-18 Operation of blast furnace Pending JPS54137419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4617978A JPS54137419A (en) 1978-04-18 1978-04-18 Operation of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4617978A JPS54137419A (en) 1978-04-18 1978-04-18 Operation of blast furnace

Publications (1)

Publication Number Publication Date
JPS54137419A true JPS54137419A (en) 1979-10-25

Family

ID=12739796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4617978A Pending JPS54137419A (en) 1978-04-18 1978-04-18 Operation of blast furnace

Country Status (1)

Country Link
JP (1) JPS54137419A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102722652A (en) * 2012-06-01 2012-10-10 攀钢集团攀枝花钢钒有限公司 Blast furnace smelting cost calculating and optimizing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285011A (en) * 1976-01-08 1977-07-15 Kobe Steel Ltd Utilization of manganese-contg. material
JPS52133817A (en) * 1976-05-01 1977-11-09 Kobe Steel Ltd Forming of ferroalloy powder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285011A (en) * 1976-01-08 1977-07-15 Kobe Steel Ltd Utilization of manganese-contg. material
JPS52133817A (en) * 1976-05-01 1977-11-09 Kobe Steel Ltd Forming of ferroalloy powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102722652A (en) * 2012-06-01 2012-10-10 攀钢集团攀枝花钢钒有限公司 Blast furnace smelting cost calculating and optimizing method

Similar Documents

Publication Publication Date Title
GB1537194A (en) Steel slag cement and method for manufacturing same
CA1079072A (en) Arc steelmaking
JPS54131521A (en) Antidigestive calcic smelting agent for steel
JPS54137419A (en) Operation of blast furnace
JPS5763647A (en) Recovering method for vanadium from molten iron
JPS5629611A (en) Simultaneous dephosphorizing desulfurization of blast furnace molten pig iron
JPS538310A (en) Reusing method of steel making slag
JPS5576012A (en) Control method for contained manganese of molten ion for steel making
JPS5343019A (en) Refining method for steel with reduced slag formation
JPS57139173A (en) Modifier for soft ground
SU610813A1 (en) Raw mixture for obtaining fused cement clinker
JPS5644709A (en) Softening method of steel making slag
JPS57158316A (en) Production of al-containing steel
JPS52156713A (en) Treatment of steel making slag
JPS5390118A (en) Steel-making method using formed synthetic slag and resulting indecreased amount of slag discharged
JPS5589412A (en) Preventing method of collapse of converter slag and electric furnace slag
JPS5754210A (en) Dephosphorizer for molten pig iron
JPS55107715A (en) Blowing method of dephosphorizer to bottom blowing converter
JPS52126601A (en) Preliminary treatment of molten metal
JPS5644708A (en) Softening method of steel making slag
JPS54128416A (en) Preferentially desiliconizing method for hot iron
JPS571565A (en) Refractory for head of electroslag hot top method
JPS5475416A (en) Recycling method for nonfeerrous substance produced in steel making system
JPS5591921A (en) Manufacture of low hydrogen steel
JPS5573810A (en) Solidification preventing agent of molten iron