混合矿烧结基础性能与化学成分间的关系

Relationship between Basic Sintering Properties and Chemical Compositions of Mixed Iron Ores Fines

根据河北钢铁集团某分公司的烧结配矿结构,研究了混合铁矿粉的烧结基础性能与化学成分间的关系。结果表明:同化温度随TFe、CaO和MgO含量的增加而升高,随Al2O3含量和烧损的增加而降低;液相流动性随SiO2含量的增加而增大,随MgO和TFe含量的升高而减小;粘结相强度随烧损、SiO2含量的增加而降低,随着MgO和TFe含量的增加而升高。采用多元回归得到了烧结基础性能与化学成分的关系式,可用于烧结配矿的快速决策。

Based on the sintering proportioning structure of a branch of the HBIS Group, the relations between the basic sintering properties and chemical compositions of mixed iron ore fines were studied. The results show that, the assimilation temperature increases with the rise of TFe, CaO and M gO content, and it decreases with the rise of A1203 content and burning loss. The liquid phase fluidity of mixed iron ore fines increases with the rise of SiO2 content, and it decreases with the rise of TFe and MgO content. The binding phase strength decreases with the rise of SiO2 content and burning loss,and it increases with the rise of the MgO and TFe content. The relationship expressions between basic sintering properties and chemical composition of mixed iron ore fines have been determined using multiple regression, which could be used for quick decision of sintering proportioning.