低MgO高炉渣流动性的实验研究

An Experimental Study of the Fluidity of Low MgO Blast Furnace Slag

采用多元线性回归分析的方法,实验研究低MgO条件下,MgO,Al2O3含量及碱度对炉渣的熔化性温度和流动性的影响.结果表明：w（MgO）在4%-8%的范围内,当炉渣中w（Al2O3）增加1%,黏度上升0.012 Pa·s,当w（MgO）增加1%,黏度下降0.043 Pa·s;为保证炉渣流动性,在二元碱度为1.2,w（MgO）为5%时,w（Al2O3）应保持在15%以下,w（MgO）为6%时,w（Al2O3）应保持在16%以下,w（MgO）为7%-8%时,w（Al2O3）应保持在17%以下.

Under the condition of the low Mg O content, the influence of the content of Mg O, Al2O3 and the basicity of slag on melting temperature and fluidity was studied by using the method of multiple linear regression analysis. Results show that when w(Mg O) is ranged from 4% to 8%, when w(Al2O3) increases by 1%, the viscosity increases by 0.012 Pa·s, when w(Mg O) increase by 1%, the viscosity decreases by 0.043 Pa·s. To ensure the fluidity of the slag, when the basicity is 1.20, w(Mg O) is 5%, w(Al2O3) should be 15% or less; when w(Mg O) is 6%,w(Al2O3) should be below 16%; when w(Mg O) is 7%-8%, w(Al2O3) should be 17% or less.