降低铁水脱硫喷枪堵枪频率的研究与应用

通过对武钢第三炼钢厂二脱硫站纯喷颗粒镁铁水脱硫生产过程的调研，系统地分析引起无气化室颗粒镁脱硫喷枪堵枪频率高的原因，并从喷枪结构与尺寸、脱硫工艺参数的控制、脱硫剂质量、设备状况等方面，研究并采用降低喷枪堵枪频率的技术措施。此外，从因素波动的角度考虑，也采取缩短喷枪内插喷吹管更换时间的技术措施，取得良好的应用效果。

Research on reduction of blockage rate of hot metal desulphurizing gun and its application

Through investigation in the overall production process of the hot metal desul- phurization by injection of the pure granular magnesium in the No. 2 Desulphurizing Station of the No. 3 Steel-making Plant of WISCO the present paper systematically analyzed the cause to the high blockage rate of the hot metal desulphurizing gun which injects granular magnesium in the gasification free chamber and stu.died and adopted a series of technical measures to reduce the blockage rate of the injection gun starting from improvement of the structure and dimension of the gun, control of the hot metal desulphurizing process parameters and quality of the desulphurizer and well maintenance of the desulphurizing equipments and etc. Furthermore in consideration of the possible fluctuation factors the technical measure of reduction of the replacement time of the insert injection tube of the gun is also adopted and very well results of application achieved.