Optimization of the oxygen supply system for smelting 82B steel with high-Ti-high-V molten iron in converter in Shougang Iron & Steel Co.

Aiming at reducing the production cost of 82B steel and improving product quality,Shougang Iron & Steel Co. added vanadium titanium pellets as raw material in the blast furnace. The addition of vanadium titanium pellets led to several problems such as the low speed in the process of producing and slag melting in converter,the low efficiency of dephosphorization,and the non-ideal effects of slag splashing. In order to solve the above problems,taking the production process of 82B steel in converter in Shougang Iron& Steel Co. as the research object and using the Fluent software to conduct a numerical simulation in combined with high industrial test,this study optimizes the oxygen supply system when using high-V-high-Ti molten iron to smelt 82B steel in converter. In addition,the optimization of oxygen supply system serves as a guarantee for the enhanced ability in smelting 82B steel with high-V-high-Ti molten iron in convert. As a result,there exists increasing possibility for Shougang Iron & Steel Co. to produce high-quality and low-cost 82B steel.