Evaluation of thermal stresses in the blast furnace hearth with consideration of refractory block contact

Abstract

A thorough understanding of thermal stresses within the blast furnace hearth refractory is crucial for selecting an optimal lining design and ensuring the safe operation of the furnace. An inadequate lining design can lead to excessive thermal stresses, resulting in cracks and gaps that may accelerate wear or, in severe cases, cause sudden and hazardous failures. Therefore, thermal stress simulation models play a vital role in designing a robust hearth and extending the furnace’s operational lifespan.