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基于炉渣离子-分子共存理论(IMCT)建立了CaO-SiO2-MgO-Al2O3炼铁渣系的硫化物容量预报模型,即IMCT-CS2-模型,比较了该渣系1773 K时实测的硫化物容量、IMCT-CS2-模型预报的硫化物容量及其他五种硫化物容量模型的计算结果.结果表明,由IMCT-CS2-模型预报的1773K时CaO-SiO2-MgO-Al2O3炼铁渣系的硫化物容量更精确.本文建立的IMCT-CS2-模型不仅可计算该渣系的总硫化物容量,而且可计算该渣系中自由CaO和MgO各自的硫化物容量.1 773 K时CaO-SiO2-MgO-Al2O3炼铁渣系中Al2O3质量分数由10%增加到17%,CaO质量分数由38%增加到44%,MgO质量分数由12%降低到4%可使自由CaO对该渣系的总硫化物容量贡献率由97%提高到99%,同时使自由MgO的贡献率由3%降低到1%.
Based on the theory of slag ion-molecule coexistence (IMCT), the prediction model of sulfide capacity of CaO-SiO2-MgO-Al2O3 slag system is established, which is IMCT-CS2-model. The measured sulfide capacity , IMCT-CS2-model prediction and other five sulfide capacity models.The results show that the sulfide of CaO-SiO2-MgO-Al2O3 slag system at 1773K predicted by IMCT-CS2-model The capacity is more accurate.The IMCT-CS2-model established in this paper can not only calculate the total sulfide capacity of the slag system, but also calculate the respective sulfide capacity of the free CaO and MgO in the slag system.1 CaO-SiO2-MgO -Al2O3 iron slag system in the Al2O3 mass fraction increased from 10% to 17%, CaO mass fraction increased from 38% to 44%, MgO mass fraction decreased from 12% to 4% of the free CaO of the slag system of the total sulfide The contribution rate of material capacity increased from 97% to 99%, while the contribution of free MgO decreased from 3% to 1%.