Pore Forming Process on Iron Ore Sinter and Its Model

Abstract

On the controlling factors for sinter qualities, sinter porosity plays an important role together with the mineral composition. The present work was carried out to study on sinter pore and its forming mechanism by pot tests and to develop the sinter porosity evaluation model.
Pores in sinter were formed as the pores in raw mix bed were changed and redistributed by the forming sinter melt. predicted porosity in sinter was described by the melting ratio of raw materials and the fluid index of sinter melt. Sinter porosity was measured on the small open pores below 0.5 mm in diameter and the all closed pores by JIS method.
The calculated porosities by the model were in good agreement with the observed ones.