Prediction of Silicon Content in Hot Metal Based on Genetic Algorithms

In blast furnace (BF) ironmaking process, hot metal silicon content is an important index. Not only is silicon content a significant quality variable, it also reflects the thermal state of BF. A novel genetic algorithm was proposed. Time lag of each pivotal variable was calculated respectively. Based on the time lag analysis, the genetic algorithm is used to approach the fittest equation that describes the behavior between [Si] and the variables. With the calculated equation, the forecasting accuracy is up to 88%. Data, used in this paper, were collected from No.1 BF at Laiwu Iron and Steel Group Co