Advances in the regulation and control in the thermal state of the blast furnace
Keywords:Thermic state in the hearth, Pulverized coal injection, Relation sinter/coke, Control on line, Advanced automation
An automated system of direction (SAD) for the control of the thermal state of the hearth of the blast furnace is used, taking into account the interrelation existing between the pig iron temperature and its silicon content. By the magnitude of the thermal exergy of the process, which determines the heat work capacity the variations in the heating of the hearth can be valued and carried out the necessary control and regulation actions, such as the variations in the pulverized coal injection and in the sinter/coke relation in the melting bed of the blast furnace.
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