Numerical study of a rotary kiln. Case of an industrial plant in Paraguay

MARCELO GONZALEZ; CRISTHIAN ZARATE; DARIO ALVISO; JUAN CARLOS ROLON

Vitória, ES

Congreso; 16 th Brazilian Congress of Thermal Sciences and Engineering; 2016

ABCM

This paper summarizes the results obtained from the modeling and simulation of an industrial rotary kiln used for clinker production in order to optimize its operation and reduce fuel consumption. The model includes a sub-model for the variation of bed height within the kiln and another for simulating key processes occurring in solid bed takinginto account the chemical reactions taking place during clinker formation and heat transfer in rotary kilns. Chemical reactions were considered as ad hoc models. Melt formation near burner zone was also taken into account. The gas and shell temperature profiles of the kiln were specified. The energy conservation equation was solved using a differential R The model was used to simulate the performance of an industrial rotary kiln in equation solver available in Matlab. Paraguay and investigate the influence of operating parameters on energy consumption of the kiln in order to minimize it.