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Original scientific paper

Information impactogram application for fast detection of temperature instability zone of a two-channel ceramic roller kiln

Darko Krmpotic ; Kralja Zvonimira 10/IV, HR-33515 Orahovica
Alan Jovic orcid id ; University of Zagreb, Faculty of Electrical Engineering and Computing, Unska 3, HR-10000 Zagreb, Croatia
Franjo Jovic ; J. J. Strossmayer University of Osijek, Faculty of Electrical Engineering, Kneza Trpimira 2b, HR-31000 Osijek, Croatia

Full text: croatian pdf 938 Kb

page 981-987

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Full text: english pdf 938 Kb

page 981-987

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A fast procedure for determination of instability zone of a two-channel ceramic roller kiln, Siti type, is proposed. The basis for determination of instability zone is the calculation of code identity of final fallout signal and temperature sensor signal from the roller kiln in relevant critical firing zone. The case of product fallout increase above 6 % is used as indicator for procedure application. Code letters for the signals are determined and their respective one-dimensional tessellation entropy is calculated. The case of expanded code and entropy congruence can be taken as indicative enough for determination of the firing instability zone from the fallout increase standpoint. The signal s50 temperature zone of two-channel roller kiln was indicated in the period August/September 2009 as responsible for product losses in approximately six consecutive working shifts. Based on the results, a workflow is proposed for the use of the entropy analysis in real-time industrial setting.


firing zone, kiln supervision, tessellation entropy, quality control

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