Estimating the thickness of coating in the burning zone of cement kilns including the aging factor

Abstract EN

The coat in the burning zone play an important role in cement industry and energy keeping, not only it protect the refractory bricks but also affect the type of clinkers produced so it is a good idea to make some researches about this coat In this papers the model produced by Sepehr Sadiqhi et.al.

2011 depending on the measured process variables and scanned shell temperature, will reviewed to estimate the thickness of coating at Kufa cement kilns.

The Aging factor will be entered to represent the phenomena when fused clinkers transform to solid and calculate the time required for making this coating.

The estimation of thickness in this model was depending mainly on the difference between the inside temperature gotten from the model and outside temperature measured by kiln shell scanner at burning zone.

The model was applied on two kilns (2 and 3) at Kufa plants.

The difference between theoretical and practical results for measuring thickness at kilns 2and 3 was 4.43 and 3.92¬cm respectively, the time required for formation the stable coating was 24 hr.

or 960 rpm.