A MATHEMATICAL MODEL FOR THE CONTROL OF METALLURGICAL PROPERTIES OF THE PRODUCT SINTER

In the practice of conventional sintering, achieving uniform quality in the produced sinter is a significant challenge, often resulting in suboptimal properties in different layers of the sinter cake. This research aims to enhance the sintering process by developing a mathematical model that accurately accounts for the combustion zone heat balance. Previous methodologies relied on the assumption of constant combustion zone dimensions and velocity, which was contradicted by experimental findings indicating variability. The model integrates these changing parameters and facilitates the analysis of haematite and limonitic ores under various conditions. The outcomes demonstrate the model's sensitivity to changes in sinter mix composition and process conditions. Importantly, it allows for precision in determining the minimum theoretical coke breeze consumption required for sintering any iron ore fines and offers a tool for real-time control of metallurgical quality parameters such as basicity, combustion zone temperature, and FeO content within the sinter bed. The findings suggest a promising direction for improving efficiency in sinter production and metallurgical properties.