An Expert System to Aid Operation of Blast Furnace

Abstract An expert system has been developed to support the blast furnace operation in the integrated iron and steel making works. In the present study, the knowledge bases were built up, which diagnosed the formation of a lower part inactive zone and and the unstable condition of inner furnace gas flow. In order to enhance the diagnostic resolution and the robustness to counteract various furnace abnormalities, the data acquired by several sensors, which were installed in the blast furnace, they were pre-treated before using them as input sources for the diagnosis. The developed expert system diagnosed the real on-line process of the blast furnace operation rapidly and precisely.