高效低耗KR法铁水预处理技术研究与应用

The Research and Application of KR Hot Metal Pretreatment on Efficient and Low-Cost Way

摘要: 莱芜钢铁为了提高铁水预处理技术水平，通过开发颗粒脱硫剂技术、优化工艺参数，在提高脱硫效率的同时降低了脱硫剂消耗。开发新型扒渣板和吹气赶渣技术，实现了脱硫渣的快速分离，提高了扒渣效率同时降低了铁损。开发新型Fe₂O₃-Al₂O₃系高效脱硅剂，动态调整铁水硅含量，为转炉提供良好的铁水条件，稳步推进KR法铁水预处理工艺技术发展，为开发高附加值钢种创造良好的条件。

Abstract: To heighten the ability of hot metal pretreatment in Laiwu Steel, we develop pellet desulfurizer technique, optimize process parameters, and raise the desulfurization efficiency and reduce consumption. To develop the new shape of slagging-off board and slag-blowing, the technique of rapid separation of desulfurization slag in order to raise slagging-off efficiency and reduce iron loss has been achieved. To develop the efficiency desiliconization with Fe₂O₃-Al₂O₃ series, to adjust the silicon of iron melt, in order to provide better hot melt for LD converter, the technology of KR hot metal pretreatment has been proceeding steadily. This technique can also create a good condition for the high value-added steel grades.