Abstract：In order to study the reason of the wear damage of the tuyere in Xingcheng steel plant, through the statistical analysis of the number and characteristics of the damaged tuyere, the design value and the length of the tuyere were compared with that in others plants. The suitable angle between the gun and the centerline of the tuyere was calculated by computer simulation, and the calculated results were compared with the angle used in the actual production. Through the analysis of the material of the gun, the change of the alkali metal in the blast furnace, the moisture and the particle size in the pulverized coal, it was found that the main reasons for the damage of the tuyere in Xingcheng steel plant were that the length of the tuyere was too long, the load of alkali metal was high, the angle between the gun and the outlet center line was too large, and the gun material wear resistance and the high temperature performance were poor. For the above reasons, the appropriate measures were taken in Xingcheng steel plant. The results showed that a reasonable reduction of the length of small sets, the adjust of the angle between the gun and the tuyere center line, the decrease of the blast furnace alkali load and the application of the wear- resistant gun can not only ensure the blast furnace smooth operation, but also extend the service life of the tuyere.
收稿日期: 2017-05-16
出版日期: 2018-01-04
通讯作者:
徐振庭
E-mail: X28055903@citicsteel.com
引用本文:
徐振庭，郭超. 兴澄特钢3 200 m3高炉减少风口磨损的措施[J]. 中国冶金, 2017, 27(12): 40-43.
XU Zhen- ting，GUO Chao. Measures for reducing tuyere wear of 3 200 m3 blast furnace in Xingcheng Special Steel. China Metallurgy, 2017, 27(12): 40-43.
2017, Vol. 27 
