2009 Kuncan Zheng Research Status and Development Trend of Numerical Simulation on Blast Furnace Lining Erosion isijinternational.49.1277

The longevity of blast furnaces is a critical concern for steel and iron companies, as reline and repair processes lead to significant economic losses. This research aims to explore the factors affecting lining erosion, which is crucial for extending the operational lifespan of blast furnaces. A comprehensive approach is adopted, combining direct measurement, physical modeling, and particularly, numerical simulation, which is deemed superior for optimizing furnace design and operation. The study identifies two primary areas of erosion: the hearth side wall and hearth bottom, along with the bosh, belly, and lower shaft. Two distinct numerical models for analyzing lining erosion are developed: the first focuses solely on heat conduction within the lining, while the second integrates comprehensive heat transfer dynamics, including multi-phase flows and heat transfer interactions within the hearth. These models are important for predicting refractory corrosion and optimizing operational parameters, ultimately demonstrating the significance of numerical simulation in the design and maintenance of blast furnaces, and addressing the complex factors influencing refractory performance.