Alkali attack as refractory wear mechanism

Published 13 May 2024

The increasing use of alternative fuels in cement production has led to increased wear on kiln refractories. Infiltration of sulphur oxides, alkali sulphates, and chlorides require more frequent attention to the state of the refractory to ensure continued safe operation of the kiln line. By Larry Morley, HWI - a member of Calderys, USA

While alternative fuels in cement manufacturing offer significant advantages, including cost savings and reductions in carbon emissions, they also present unique challenges, particularly their impact on kiln operation and durability. 

Vessel damage caused by refractory growth due to alkali

penetration and expansive growth phases (© HWI)

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