从不同二氧化硅烧结矿的表观形貌出发，对表征烧结矿的分形参数进行解析，发现Δα及f （α）max值的大小表征Fe3 O4和CaO· Fe2 O3数量的多少及其分布的均匀程度。且随着SiO2质量分数的升高，低硅烧结矿其还原性逐渐变差而其抗压强度呈现出逐渐变好的趋势；而当wSiO2＝4．8％时，多重分形谱谱宽Δα达到最小值，多重分形谱最大值f（α）max达到最大值，这就表明，此时不仅低硅烧结矿中的铁酸钙分布较均匀而且生成量最大。所以，随着低硅烧结矿 SiO2质量分数的增大，其还原性逐渐变差，抗压强度逐渐变好。
Based on the apparent morphology of different silica sinter,the characterization of the fractal parameters of sinter was parsed.It was found that △αand f(α)max represented the number and homogeneity of the Fe3 O4 and CaO·Fe2 O3 ,respectively.And with the increase of SiO2 mass fraction,the reducibility of low silicon sinter was getting worse gradually,but the compressive strength was getting better.When the content of SiO2 is 4.8%,multi-fractal spectrum spectral width△αreached the minimum,and multifractal spectrum maximum f (α)Max reached the peak.This indicated that the calcium ferrite was distributed more uniform in the low silicon sinter and its formation amount was the largest.Therefore,with the increase of SiO2 mass fraction in low silica sinter,the reducibility be-came poor and the compressive strength gradually got better.
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