针对攀钢现行工艺下发生的RH浸渍管粘渣的问题，通过实验及理论计算研究了RH浸渍管的粘渣原因及其对策。对RH浸渍管粘渣物的物相分析结果表明，RH精炼过程中高熔点的镁铝尖晶石相在熔渣中析出是导致RH浸渍管粘渣的根本原因；精炼渣组成对浸渍管粘渣影响的研究表明，提高精炼渣的碱度、增大渣中CaO/Al2O3含量比、降低渣中MgO含量，可以降低渣中高熔点相的作用浓度，改善了熔渣粘度和熔点，有利于减轻RH浸渍管的粘渣。
The reason and measure for slag buildup on RH immerge tube under current process of Panzhihua Steel have been studied based on experimental analysis and thermodynamic calculation. After studying the matters of slag buildup on RH immerge tube, it was found that the crystallization of high melt point phase MgO·Al2O3 are main cause for slag buildup. The results of effect of refining slag compositions on slag buildup indicates that the effective measure for reduce slag buildup is to control the activities of phases with high melting point in order to decrease crystallization of it by improve slag basicity and the ratio of CaO/Al2O3, and reduce the content of MgO.
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