唐钢3200m^3高炉炉渣成分及性能分析

Tangshan 3200 m^3 Blast Furnace Slag Composition and Performance Analysis

近年唐钢3 200 m^3高炉由于炉料结构发生变化,渣中Al_2O_3含量最高达16%,影响了炉渣性能,对生产的稳定带来了影响。通过检测炉渣的成分及性能,结合相图理论,分析了Al_2O_3、二元碱度及Mg O含量对炉渣性能的影响,结果表明,二元碱度在1.15以下时,炉渣在较低温度下仍有较好的流动性;R^2为1.2时,MgO含量应低于8.69%。唐钢高炉选择Al2O3含量约为15%、MgO含量为6%~9%、R2≯1.2的渣型较为适宜。

In recent years, the burden structure of 3 200 m3 blast furnace in Tangshan Steel has changed. The content of Al2O3 in slag is up to 16%, that has affected the performance of slag, and influenced the stability of production. By detecting the composition and performance of the slag and integrated with phase diagram theory, the effects of the Al2O3, R2 and MgO style on the properties of slag was analyzed. The results show that the R2 is under 1.15, the slag at lower temperatures have better liquidity;R2 is 1.2, the content of MgO style should be lower than 8.69%. The about 15%content of Al2O3, the 6%-9%content of MgO style, and the type slag R2≯1.2 chosen in Tanggang blast furnace is more appropriate.