Abstract
Heat balance control of the blast furnace is complicated by the multiplicity of metallurgical reactions and delays in measurement and response to control actions. An on-line process model was able to predict hot metal temperature hours sooner, thereby allowing more timely actions. In a parallel investigation, rules in control schemes for metal temperature were encapsulated in an Operator Guidance System (“OGS”) and tested. The oas met with operator approval and was implemented as a back-up to the model.
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