RHI Thrust Lock System: A solution for kiln outlet problems

摘要

Despite numerous different lining designs and refractory materials installed and tested in the past (e.g., magnesia and SiC bricks, castables, and preshaped blocks), until now no comprehensive solution has been available to solve all the severe lining problems that often occur in the kiln outlet zone (fig 1). Due to the excessive axial lining thrust of modern high-performance kilns and the resulting thermo-mechanically overstressed lining, conventional designs, namely brick and/or castable lining combined with rectangular retaining rings (fig 2), often do not achieve an acceptable service life or stop the axial lining thrust entirely.