摘要
根据宣钢高炉冶炼条件采用RTW熔体物性测定仪,并以现场含钛高炉渣为基准,进行炉渣的黏度试验;研究不同的碱度、MgO和Al2O3含量对低钛高炉渣流动性能的影响。结果表明:试验用4种不同碱度炉渣黏度η-T曲线具有短渣特性,随炉渣碱度升高,炉渣η-T曲线短渣特性增强;在相同温度条件下炉渣黏度基本随碱度的升高而降低;MgO在一定范围内能起到降低炉渣黏度的作用,但MgO含量超过11%时,炉渣黏度随MgO含量的升高而增大;在试验条件下,低钛炉渣Al2O3含量对炉渣流动性质影响较小,生产中炉渣温度应保证在1400℃以上,炉渣Al2O3含量可以适当选高。
According to Xuan steel＇ s blast furnace conditions, a RTW melt properties analyzer was used to to measure slag viscosity and then to research the effect of different basicity, MgO and Al2O3 content on flow properties of high titanium-bearing slag of blast furnace. The results show that the slags with 4 different levels of basicity feature short slag viscosity η/-T curve. With increasing slag basicity, shortη-T curve feature enhanced. At the same temperature the viscosity of the slag decreases as basicity increases. MgO in a certain range is able to play the role in reducing slag viscosity, but when the MgO content exceeds 11%, the slag viscosity increases with increase of MgO content. Al2O3 contenthas little effect on flow properties. Theslag temperature should maintain at above 1 400 ℃ and slag is feasible with higher Al2O3 content.
出处
《钢铁钒钛》
CAS
北大核心
2015年第2期78-83,共6页
Iron Steel Vanadium Titanium
基金
国家自然科学基金重点支持联合项目(U1360205)
关键词
低钛高炉渣
黏度
熔化性温度
titanium-bearing slag, viscosity, melting temperature
