Analysis of Operational Parameters Affecting the Sulfur Content in Hot Metal of the COREX Process

作者：Wu, Shengli; Wang, Laixin^*; Kou, Mingyin; Wang, Yujue; Zhang, Jiacong

来源：Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 2017, 48(1): 276-285.

DOI：10.1007/s11663-016-0810-y

• MELTER-GASIFIER
• MATHEMATICAL-MODEL
• SHAFT FURNACE
• COAL
• OPTIMIZATION
• SLAGS

The COREX process, which has obvious advantages in environment protection, still has some disadvantages. It has a higher sulfur content in hot metal (HM) than the blast furnace has. In the present work, the distribution and transfer of sulfur in the COREX have been analyzed and several operational parameters related to the sulfur content in HM ([pct S]) have been obtained. Based on this, the effects of the coal rate, slag ratio, temperature of HM, melting rate, binary basicity (R (2)), the ratio of MgO/Al2O3, utilization of reducing gas, top gas consumption per ton burden solid, metallization rate, oxidation degree of reducing gas, and coal and DRI distribution index on the sulfur content in HM are investigated. What's more, a linear model has been developed and subsequently used for predicting and controlling the S content in HM of the COREX process.

• 出版日期2017-2
• 单位北京科技大学