Multi-Fractional Research on Pore Distribution in the Sinter Ore with Different Basicity

Abstract

The pore distribution of low silica sinter ore samples with different alkalinity was measured by pressure mercury, and the fractal characteristic of pore distribution was calculated with multifractal theory, then metallurgical properties were also obtained, finally, their connection among them was discussed. The results showed that the pore distribution has experienced a process from non-uniform to uniform with increasing alkalinity. When the alkalinity was 2.0, the spectral width Δα was minimum, multifractal structure was more uniform, fractal characteristics was better, in the meantime, the pore distribution was more uniform, and the pores were larger, which improved metallurgical properties. The results also showed that when the alkalinity was 2.0, its metallurgical properties was optimal.