低硅烧结矿粒度分布的分形特征研究  

Study on Fractal Characteristics of Grain Size Distribution of Low Silica Sinter

作　　者：张玉柱[1] 张庆军[1] 莫文玲[1] 孟华栋[1] 刘丽妹[1] 

机构地区：[1]河北理工大学冶金与能源学院,河北唐山063009

出　　处：《钢铁》2005年第12期21-24,共4页Iron and Steel

基　　金：国家自然科学基金资助项目(50444019);河北省自然科学基金资助项目(E2005000433)

摘　　要：烧结矿的粒度组成情况是衡量烧结矿质量的一个重要指标。根据分形几何学理论,通过烧结对比实验,探讨了低硅烧结矿粒度分布的分形特征,确立了粒度分布的分形维数与SiO2含量之间的关系,并结合低硅烧结矿的扫描电镜照片,分析了分形维数与低硅烧结矿微观结构的相关性。通过对低硅烧结矿粒度分布的定量描述,为预报及优化烧结矿的粒度组成,并为烧结矿的进一步深入研究提供了新的思路、新的途径。Grain size distribution of sinter is an important index to measure the quality of sinter. According to the fraetal geometrical theory and experiment results of sintering, the fraetal characteristic of grain size distribution of low SiO2 sinter was studied. The relation between the fraetal dimension and content of SiO2 was established. The relation between the fractal dimension and microstructure of low Si02 sinter was also analyzed by observation of SEM photo. With the quantitative description of grain size distribution, a new way to predict and optimize the grain size distribution of sinter and for the further research is offered.

关 键 词：分形 分形维数 粒度分布 低硅烧结矿 

分 类 号：TF046.4[冶金工程—冶金物理化学]