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以石墨、炭黑、碳化硅等3种含碳材料和碱度分别为0.8、1.0和1.2的基渣为原料,研究了三种熔速调节剂炭黑、石墨和碳化硅的加入形式(单独、复合及复合比例)和加入量以及基渣的碱度等因素对保护渣熔化速度的影响,并对试验数据进行了多元线性回归分析。结果表明:1)石墨和炭黑复合加入比单独加入对保护渣熔化速度的影响更明显,尤其当m(炭黑):m(石墨)=1:3时,其作用最明显;2)单独加入碳化硅对保护渣熔化速度的影响不大,但是碳化硅与炭黑以m(SiC):m(炭黑)=1:3的比例复合加入时,保护渣的熔化速度比单独加入炭黑时的小;3)通过对试验数据的多元线性回归分析发现,炭黑在复合调速剂中的质量分数对熔化速度的影响最显著,熔速调节剂的加入量次之,随后依次为石墨在复合调速剂中的质量分数、碳化硅在复合调速剂中的质量分数和渣的碱度。
Based on the three kinds of carbonaceous materials such as graphite, carbon black and silicon carbide, and the basic residues with basicity of 0.8, 1.0 and 1.2, respectively, the addition of three kinds of melt-rate modifier carbon black, graphite and silicon carbide , Composite and composite ratio) and the amount of addition as well as the alkalinity of base slag and other factors on the melting slag melting rate, and the experimental data were analyzed by multiple linear regression. The results show that: 1) The effect of graphite and carbon black addition on the melting rate of the flux is more obvious than that of the single addition, especially when m (carbon black): m (graphite) = 1: 3; The addition of silicon carbide has little effect on the melting rate of the flux, but when silicon carbide and carbon black are added in the ratio of m (SiC): m (carbon black) = 1: 3, the flux will melt faster than the carbon black 3) Through the multiple linear regression analysis of the experimental data, it is found that the mass fraction of carbon black in the compound speed regulator has the most significant influence on the melt speed, followed by the addition of the melt speed regulator, followed by graphite Mass fraction in compound speed regulator, mass fraction of silicon carbide in compound speed regulator, and alkalinity of slag.