Effects of Low Titanium Sintering Parameters on Softening Properties of Burden Load

In order to provide a more comprehensive guide to sinter production and to determine the appropriate parameters of low sintering titanium sinter in Xuanhua Steel,the impact of basicity,carbon content,MgO content,SiO₂ content,moisture on burden load softening properties had been investigated by RUL test device.The results showed that at a given sintering parameters,the effect of carbon content on the softening temperature is not obvious.As the alkalinity increases,the softening temperature of the sinter increases.When R=2.10,the softening temperature of the sinter reached the maximum; When R > 2.10,softening temperature decreased with R.There is an appropriate alkalinity for optimal load softening properties within a certain range of alkalinity.With the increase of MgO content,the softening temperature range is narrowed,breathability enhanced,softening zone moved downward.From this point,increasing the MgO content of the raw material is favor for smooth operation of blast furnace.With increasing SiO₂ content,RUL performance deteriorated,therefore,it can be appropriate to reduce the load softening SiO₂ content to improve the performance of Xuanhua Steel sinter.With the increase of water content,T_10% and T_40% showed an increasing trend,ΔT substantially increased.