Analysis of Operational Parameters Affecting the Sulfur Content in Hot Metal of the COREX Process
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- 作者：Shengli Wu ; Laixin Wang ; Mingyin Kou…
- 刊名：Metallurgical and Materials Transactions B
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：48
- 期：1
- 页码：276-285
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Metallic Materials; Characterization and Evaluation of Materials; Structural Materials; Surfaces and Interfaces, Thin Films; Nanotechnology;
- 出版者：Springer US
- ISSN：1543-1916
- 卷排序：48
文摘
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 (R2), 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.