A predictive model of sinter chemical composition was developed to predict R (CaO/SiO2), TFe and SiO2 (CaO is calculated from R and SiO2). Based on the backpropagation neural network algorithm, it used the predictive result as a precondition. An expert system was designed to assist in controlling the sinter chemical composition by estimating the change of all the relative chemical components and providing the necessary adjustment. After the system commenced, the hit ratio of the predictive model was consistently over 90% and the goal of controlling chemical composition was achieved.
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Fan et al. (2006) studied this question.
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