SmeltingPracticeofHighA luminum OreinLaiwuSteel’s1000m3BF
ZHANG Ming
JI Guanggang
ZHANG Junbin
CHEN Yanhui
CHEN wei
Abstract：Sierra Leone ore is the mixed ore of lump ore and fine ore in incoming and characterized by low-silicon, high-aluminum and worse softening dropping properties of the lump ore. In sintering production, by improving the ore proportioning structure and increasing low-aluminum ore to ensure the metallurgical properties of sinter, the Sierra Leone ore (with 7% aluminum about) proportion reached 15%. After using the sinter, by improving the quality of coke, controlling the ratio of magnesium and aluminum in slag, suitably increasing slag ratio, Laiwu Steel’s 1 000 m3 blast furnace kept long stable operation. The usage of Sierra Leone ore reduced the cost of per ton pig iron by 25 Yuan about.
Keywords：Sierra Leone orehigh aluminum oreore proportioning structuresinteringblast furnace
Publication Date：2013-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 3-4,7 )