Y. Jin
,
X.G. Bi
,
S.R. Yu
,
null
,
null
,
null
金属学报(英文版)
The kinetic model for desulfurization using CaO-based powder injection has been proposed, which accords with the actual process of the experiment. For the model, a comparison between CaO-based flux and Mg-based flux was made and the results show that the desulfurization rate of the Mg-based flux is far more than that of CaO-based flux. On the basis of the model calculation, on comparison of CaO-CaF2 flux and calcium aluminate flux, the desulfurization rates of the two fluxes are close to each other. In addition, the effects of some operational factors on the kinetics of desulfurization are discussed.
关键词:
powder injection
,
null
,
null
白瑞国
,
吕明
,
朱荣
,
鲍翔
,
张兴利
,
高海
钢铁
利用水模拟试验，将转炉提钒喷粉过程的气粉混合物近似看作一种密度较大的气相流，通过测定电导率对比不同喷粉流量和喷粉位置混匀时间的变化，研究150t提钒转炉喷粉的搅拌效果和冲击特性。研究发现：采用底吹喷粉时，容易发生钢水倒灌堵塞喷粉枪;采用低于熔池液面300mm转炉侧部30°喷吹时，混匀时间仅为54．5s；侧吹30°下部关于轴A的对称位置应为最佳喷粉位置，有利于增强提钒熔池搅拌能力，促进提钒反应进行，为实现转炉喷粉高效提钒提供理论支撑。
关键词:
提钒转炉
,
喷粉
,
水模拟
,
混匀时间
