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    • 3. 发明公开
    • MOLTEN IRON MANUFACTURING APPARATUS AND MOLTEN IRON MANUFACTURING METHOD
    • HERSTELLUNGSVORRICHTUNGFÜREISENSCHMELZE UND HERSTELLUNGSVERFAHRENFÜREISENSCHMELZE
    • EP2940156A1
    • 2015-11-04
    • EP12891061.9
    • 2012-12-28
    • Posco
    • JUNG, JonghwunNAMKUNG, WonCHO, MinyoungYI, Sang-HoWOO, Jong-Soo
    • C21B13/00C21B11/00
    • F27D17/004C21B5/003C21B13/004C21B13/0073C21B13/0086C21B13/143C21B13/146C21B2100/24C21B2100/62Y02P10/136
    • An apparatus for manufacturing molten iron according to an aspect of the present invention includes: an iron ore-mixing/pre-reducing furnace that receives and mixes natural iron ore and oxidized iron ore supplied from an iron ore oxidizing-burning furnace, and heats or pre-reduces iron ore using a flue gas supplied from an iron ore reduction furnace; the iron ore reduction furnace that receives pre-processed iron ore discharged from the iron ore-mixing/pre-reducing furnace or partially reduced iron ore, and reduces the iron ore using a reduction gas discharged from a molten gasification furnace; the molten gasification furnace that receives coal and some of reduced iron produced by the iron ore reduction furnace and produces molten iron and a reduction gas to be supplied to the iron ore reduction furnace; and the iron ore oxidizing-burning furnace that receives new iron ore and some of reduced iron discharged from the iron ore reduction furnace and changes the new iron ore into oxidized iron ore including a large amount oxygen by burning the new iron ore and the some of reduced iron with air.
    • 根据本发明一方面的用于制造铁水的设备包括:铁矿石混合/预还原炉,其接收并混合从铁矿石氧化燃烧炉供应的天然铁矿石和氧化铁矿石,并加热或 使用从铁矿石还原炉供应的烟道气预先还原铁矿石; 铁矿石还原炉,其接收从铁矿石混合/预还原炉或部分还原铁矿石排出的预处理铁矿石,并使用从熔融气化炉排出的还原气体来还原铁矿石; 熔融气化炉,其接收由铁矿石还原炉产生的煤和一些还原铁,并产生供给到铁矿石还原炉的铁水和还原气体; 和铁矿石氧化燃烧炉,从铁矿石还原炉中收到新铁矿石和一些还原铁,并通过燃烧新铁矿石将新铁矿石变成含氧量大的氧化铁矿,包括大量的氧化铁 用空气还原铁。