Information technology to improve the efficiency of thermal control of the bottom part of the blast furnace

Abstract

The paper analyzes the characteristics of the blast furnace process, particularly the variability of input parameters, the periodicity of material charging, and the accumulation and discharge cycles of molten products. These factors affect the thermal state of the blast furnace, complicating the maintenance of a stable process. To address this issue, an information technology for controlling the thermal state of the blast furnace is proposed, allowing real-time monitoring of the lining temperature of the hearth. This approach ensures quick responses to deviations and helps maintain a stable smelting process. Special attention is given to the "accumulation-discharge" cycle of molten products, enabling control of the hearth's filling level and timely discharge of products. Based on this technology, a software environment has been developed to automatically provide the operator with quantitative data on the thermal state of the hearth and forecast the silicon content in the pig iron. The use of this information technology enhances the efficiency of managing the smelting process, reduces energy consumption, improves the technical and economic indicators of production, and ensures the stable quality of the final product