JPS57210905A - Production of pig iron - Google Patents

Production of pig iron

Info

Publication number
JPS57210905A
JPS57210905A JP9639081A JP9639081A JPS57210905A JP S57210905 A JPS57210905 A JP S57210905A JP 9639081 A JP9639081 A JP 9639081A JP 9639081 A JP9639081 A JP 9639081A JP S57210905 A JPS57210905 A JP S57210905A
Authority
JP
Japan
Prior art keywords
furnace
reduced iron
iron
coke
melt
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
JP9639081A
Other languages
Japanese (ja)
Other versions
JPS5918443B2 (en
Inventor
Hideyuki Yamaoka
Michiharu Hatano
Tomio Miyazaki
Teruhisa Shimoda
Koji Oki
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP9639081A priority Critical patent/JPS5918443B2/en
Priority to SE8202585A priority patent/SE457265B/en
Priority to AU83022/82A priority patent/AU537688B2/en
Priority to GB08212245A priority patent/GB2100755B/en
Priority to FR8207445A priority patent/FR2507624B1/en
Priority to CA000401962A priority patent/CA1193867A/en
Priority to DE3216019A priority patent/DE3216019C3/en
Priority to KR8201894A priority patent/KR860000735B1/en
Publication of JPS57210905A publication Critical patent/JPS57210905A/en
Priority to US06/497,420 priority patent/US4504043A/en
Publication of JPS5918443B2 publication Critical patent/JPS5918443B2/en
Priority to US06/617,912 priority patent/US4564389A/en
Expired 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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon

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 make energy consumption less and coke ratio lower as compared to a blast furnace method and to permit the use of low grade raw materials by combining a reducing furnace for iron ore and a furnace for melting reduced iron and producing reducing gas. CONSTITUTION:O2 10, steam 11 and grained coal 12 are blown through tuyeres 5 of a melting gasifying furnace 1, and CO and H2 based high temp. combustion gases are produced in a combustion chamber (a). These are flowed to a heating part (b) and a melting part (c) consisting of packed beds of coke, coal, limestone, etc. charged through an inlet 6 to melt the reduced iron, after which the molten iron is removed through an outlet 8. While the melt of the reduced iron and the gangue contained therein is dropped in the part (b), it is subjected to carburization, SiO2 reduction reaction, etc., then it is recovered together with the coke formed in the chamber (a), the ashes of the powder coal and the slag of the melt of the lime into a molten metal well (d) and these are removed through a tap hole 9. The reduced iron and the coke are replenished from chutes 26, 27. The gases entering a moving bed type reducing furnace 2 reduce the iron core through an inlet 21, after which they are recovered through an outlet 22. The reduced iron dispensed from the furnace 2 is charged into the furnace 1.
JP9639081A 1981-06-10 1981-06-22 Pig iron manufacturing method Expired JPS5918443B2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP9639081A JPS5918443B2 (en) 1981-06-22 1981-06-22 Pig iron manufacturing method
SE8202585A SE457265B (en) 1981-06-10 1982-04-26 PROCEDURE AND ESTABLISHMENT FOR PREPARATION OF THANKS
AU83022/82A AU537688B2 (en) 1981-06-10 1982-04-27 Combination gasification and smelting furnace for the production of pig iron
GB08212245A GB2100755B (en) 1981-06-10 1982-04-28 Process for coal-gasification and making pig iron and apparatus therefore
CA000401962A CA1193867A (en) 1981-06-10 1982-04-29 Process for coal-gasification and making pig iron and apparatus therefor
FR8207445A FR2507624B1 (en) 1981-06-10 1982-04-29 PROCESS FOR THE GASIFICATION OF COAL AND THE MANUFACTURE OF CAST IRON AND INSTALLATION FOR ITS IMPLEMENTATION
DE3216019A DE3216019C3 (en) 1981-06-10 1982-04-29 Method for producing pig iron and useful gas and use of a melting / gasification furnace for its implementation
KR8201894A KR860000735B1 (en) 1981-06-10 1982-04-29 Method & apparatus for coal gasification and making pig iron
US06/497,420 US4504043A (en) 1981-06-10 1983-05-24 Apparatus for coal-gasification and making pig iron
US06/617,912 US4564389A (en) 1981-06-10 1984-06-06 Process for coal-gasification and making pig iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9639081A JPS5918443B2 (en) 1981-06-22 1981-06-22 Pig iron manufacturing method

Publications (2)

Publication Number Publication Date
JPS57210905A true JPS57210905A (en) 1982-12-24
JPS5918443B2 JPS5918443B2 (en) 1984-04-27

Family

ID=14163624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9639081A Expired JPS5918443B2 (en) 1981-06-10 1981-06-22 Pig iron manufacturing method

Country Status (1)

Country Link
JP (1) JPS5918443B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100711777B1 (en) * 2005-12-26 2007-04-25 주식회사 포스코 Method for manufacturing molten irons improving charging method and apparatus for manufacturing molten irons using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100711777B1 (en) * 2005-12-26 2007-04-25 주식회사 포스코 Method for manufacturing molten irons improving charging method and apparatus for manufacturing molten irons using the same

Also Published As

Publication number Publication date
JPS5918443B2 (en) 1984-04-27

Similar Documents

Publication Publication Date Title
US4153426A (en) Synthetic gas production
GB1485691A (en) Process for making steel
US3460934A (en) Blast furnace method
CN101956038B (en) Process method and device for performing lower-carbon ironmaking and steelmaking through melting reduction of iron ore
CA1149175A (en) Recovery of steel from high phosphorous iron ores
CN101956035B (en) Iron-containing material slag bath smelting reduction steelmaking technical method and device
CN102127610B (en) Ironmaking equipment and process for direct smelting reduction of iron ore
US3038795A (en) Process for smelting and reducing powdered or finely divided ores
SU1641194A3 (en) Process for producing hot metal or steel semiproducts from ferriferrous lump material
US2107980A (en) Method for preparing iron and steel
JPS57210905A (en) Production of pig iron
WO1991005879A1 (en) Smelting of nickel laterite and other iron containing nickel oxide materials
US3471283A (en) Reduction of iron ore
US3832158A (en) Process for producing metal from metal oxide pellets in a cupola type vessel
US1944874A (en) Reduction of ores
AU2004276579A1 (en) Method and apparatus for producing molten iron
JPS609815A (en) Production of high chromium alloy by melt production
US3511644A (en) Process for reducing and carburizing melting of metallic material in a rotary furnace
WO1990015296A1 (en) Calcium carbide production furnace by oxy-thermal process
JPS597327B2 (en) Low-Si operation method for blast furnace by mixed injection of pulverized coal and basic substance
Usachev et al. Modern Processes for the Coke-Less Production of Iron.
US88480A (en) Improvement in the manufacture of iron and steel
JPS63176407A (en) Production of molten iron
AU633153B2 (en) Recovery of ferro nickel from laterite and other oxide minerals
SU1049552A1 (en) Method for continuous steel production