Preparation method of high-strength high-titanium pellets

The invention discloses a preparation method of high-strength high-titanium pellets. According to the method, a mixed material with TiO2 content of 12-45wt% is subjected to high pressure roller grinding and wet grinding treatment to prepare pellets; after being dried, the pellets are placed in an oxidizing atmosphere to be subjected to low-temperature oxidizing roasting, and the roasted pellets are cooled after being sintered at high temperature, thus obtaining the high-titanium pellets with strength of greater than 2500N/P and TiO2 content of 12-45%; and the high-titanium pellets can meet the requirements of large blast furnaces of more than 2500m for the strength of pellets, so as to play a role of protecting the lining of the blast furnace.