采用偏光显微镜对不同碱度不同类型烧结矿矿相结构进行系统研究.结果表明:磁铁矿型及赤铁矿型烧结矿金属相为磁铁矿及赤铁矿,而含钛型烧结矿出现钙钛矿;不同类型烧结矿黏结相均为铁酸钙、硅酸二钙及玻璃质.随碱度的增加,不同类型烧结矿金属相含量降低,黏结相含量增加,且铁酸钙含量增加明显;显微结构逐渐均匀化,磁铁矿型及赤铁矿型烧结矿由斑状结构过渡为交织熔蚀结构,钒钛型烧结矿由钛磁铁矿及钙钛矿共同分布结构过渡为熔蚀结构.
The texture of sinter with different basicity had been investigated by means of polarization microscope.The result shows that the metal phase of the sinter with hematite ore and magnetite ore is magnetite and hematite,but the hydrotitanite appears in the sinter with vanadium titano-magnetite ore,the binder phase of the sinter with different sintering raw material is calcium ferrite,dicalcium silicate and glassy.With the basicity of sinter increasing,the content of the metal phase is increased and the binder phase is reduced,the texture is uniform gradually with different sinter,the texture of sinter with hematite ore and magnetite ore is porphyric to erosion interleaving structure,and the sinter with vanadium titanomagnetite ore is magnetite and metaperovskite distribution together to resorption texture.
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