Abstract: In view of the existing problems of the annealing furnace in Cold Rolling Silicon Steel Plant of Angang Steel Co. Ltd., the new technologies of the total radiant tube heating, low nox burners, continuous + pulse combustion control mode, increasing the number of waste heat recovery unit, the furnace roller bearing to increase heat insulation measures, etc. were used in this technocal renovation, which improved the product surface quality, reduced the nitrogen oxide index, realized the waste heat recovery, and improved the stable operation level of the reformed annealing furnace.

Key words: silicon steel continuous annealing furnace, full radiant tube heating, low nitrogen oxide burner, continuous + pulse combustion, waste heat recovery