The Influence of Titanium Content on the Sinter Ore Phase Structure and the Crack

The strength of sinter could affect the permeability and CO gas utilization of blast furnace, and one of the main impacted factors of sinter strength is crack. With the widely use of vanadium-titanium sinter in China, the blast conditions of some blast furnaces became worse since the vanadium-titanium sinter has been added. However, there have little public research for this phenomenon. In this paper, the influence of titanium content on the sinter ore phase structure and crack were studied by DMRX polarizing microscope. In addition, the influence of basicity and oversintering on the sinter ore phase structure were also investigated. The observed results of vanadium-titanium sinter were compared with typical sinter in China, and the influence law of titanium content on the sinter ore crack was obtained.