Influence of temperature profile in an annular shaft kiln on calcination
by Andrej Senegacnik, Janez Oman, Brane Sirok
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 1, No. 2, 2006

Abstract: The paper discusses an experimental measurement of the vertical temperature profile and kiln gas composition in an annular shaft kiln. The results obtained confirm that calcination in the kiln begins at a temperature between 820°C and 830°C. From energy balance, kiln gas composition and the samples of partially burned stones from the kiln the average heat transfer coefficient from kiln gases to the stones is determined, as well as the calcination distribution within the kiln. Modelling of the calcination process in an annular shaft kiln was performed on the basis of the measured temperature profile. The results of this model were in good agreement with those for samples of partially calcinated stones taken from the area of the lower and upper burners.

Online publication date: Wed, 09-Aug-2006

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