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Información tecnológica

versão On-line ISSN 0718-0764

Resumo

CORAL, Jesús D; DOBROSZ-GOMEZ, Izabela  e  GOMEZ, Miguel Á. Mathematical Modeling and Simulation of an Industrial Rotary Reactor for Clinker Production. Inf. tecnol. [online]. 2014, vol.25, n.5, pp.79-88. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642014000500012.

This paper summarizes the results on the modeling and simulation of an industrial rotatory kiln for clinker production. The proposed one-dimensional model includes several sub-models for simulating the variation of the bed height in the kiln, the reactive mass and energy balances in the solid and gas phases and the coal combustion. The shooting method was chosen for iteratively solving the coupled models. The model predictions of both reactant and products concentrations and gas and solid phase temperatures are in good agreement with the industrial data within deviations lower than 7%. Additionally, it was possible to quantify the thermal inversion phenomena, which occurs when the melt gets colder after having passed the peak temperature. Based on the results, it can be concluded that the proposed model is a useful tool for analyzing the performance of the rotatory kiln.

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