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为了研究含氟渣系成分变化对黏度的影响,根据五因素二次正交旋转回归法设计渣系配方,使用RTW-10熔渣物性测定仪,采用旋转柱体法,在1 600～1 300℃降温过程中对CaF2-SiO2-Al2O3-CaO-MgO渣系的黏度进行连续测定;建立了1 600℃下五元含氟渣系黏度的回归模型,研究了各组元对熔渣黏度的影响。结果表明:当CaF2的含量(质量分数,下同)在10%～70%时,随CaF2含量增加,黏度减小,随SiO2、Al2O3和MgO含量增加,黏度增大,CaO易受其他组元的作用而对黏度产生不同影响;在w(SiO2)=10%、w(MgO)=10%和w(CaF2)=50%时,随w(CaO)增加,黏度先增大后减小,w(CaO)=10%时黏度最大。在w(Al2O3)=20%、w(MgO)=10%和w(CaF2)=50%时,随着w(CaO)增加,当w(SiO2)<20%时,黏度先增大后减小;当w(SiO2)>20%时,黏度持续减小。
In order to study the influence of the change of the composition of the fluorine-containing slag system on the viscosity, a slag-based formulation was designed according to the five-factor quadratic orthogonal rotation regression method. The RTW-10 slag physical property analyzer was used. The viscosity of CaF2-SiO2-Al2O3-CaO-MgO slag system was continuously measured during the cooling process. The regression model of the viscosity of the five-component fluorine slag system was established at 1600 ℃. The influence of each component on the slag viscosity . The results show that with the content of CaF2 increasing from 10% to 70%, the viscosity decreases and the viscosity increases with the increase of SiO2, Al2O3 and MgO content. CaO is easily affected by other components (W / w) = 10%, w (MgO) = 10% and w (CaF2) = 50%, the viscosity first increases and then decreases with the increase of w (CaO) The viscosity is the largest when w (CaO) = 10%. At w (Al2O3) = 20%, w (MgO) = 10% and w (CaF2) = 50%, the viscosity first increases and then decreases with the increase of w (CaO) Small; When w (SiO2)> 20%, viscosity continued to decrease.