ABSTRACT:Abstract(#br)The main operations for a blast furnace are hot-blast supply and burden distribution, which adjust the gas utilization rate (GUR) on different time scales. However, most researches only focused on fixed-time scale relationships between the operations and the GUR. This paper presents a multi-time-scale fusion model to predict the GUR. First, this paper analyzes the multi-time-scale characteristics between the operations and the GUR based on the iron-making mechanisms. Then, this pape... 更多KEYWORDS:Blast furnace; Gas utilization rate; Multi-time scale; Empirical mode decomposition; Reconstruction;