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采用１３００～１６００℃各种渣系的７６组平衡实验条件下和１２４组准平衡条件下工业实验数据，研究了本文所引入的硫化物容量指数与光学碱度、Ｂｅｌｌ比率、氧离子摩水分数的关系。结果表明，硫化物容量指数与炉渣各种表达方式的碱度之间有较好对应关系，但在准平衡的工业实验条件下，上述关系相对较离散。因此可认为，硫化物容量指数作为炉渣碱度的一种表示方法的观点似不能适用于所有条件。
Based on the industrial experimental data of 76 groups of balance system under the conditions of 1300-1600 ℃ and 124 groups of quasi-equilibrium conditions, the effects of sulfide volume index and optical basicity, Bell ratio, oxygen ion water fraction Relationship. The results show that there is a good correspondence between the sulphide capacity index and the alkalinity of various expressions of slag, but under the quasi-equilibrium industrial experimental conditions, the above relations are relatively discrete. Therefore, it can be considered that the view that the sulfide capacity index is a method of indicating the basicity of slag does not seem to be suitable for all conditions.