Roger's method of raising the temperature and burner lance used therefor

摘要

We propose a method for raising the temperature of a Roger which can recover the royal and operational degree at an early stage by eliminating the damage to the burner lance when the temperature is raised with the burner lance formed at the outlet at the start of the blast furnace cessation, and a burner lance used therefor. . Roger's temperature rising method, the process of opening the burner lance insertion hole which has a diameter larger than the diameter of a burner lance in the outlet so that it may penetrate to the inside of a furnace, The process of installing a burner lance in the opened burner lance insertion hole, Installation; A step of filling a gap between one burner lance and a furnace outside of the outlet, and a step of blowing a heating gas into the furnace from the burner lance to raise the temperature of the furnace.