Investigation of the particle movement in rotary kiln

Abstract

This work is study of what a rotary kiln is and its applications for creating expanded ceramics, for which, a brief discussion of what is a rotary kiln, what is clay and ceramics, heat transfer inside the kiln, the movement of the particles inside the kiln and simulation methods on ANSYS are exposed. Four simulations were performed, two using a smooth kiln but with different simulation techniques, and two using inserts inside the kiln to disrupt the flow of material along the kiln. A comparison in between the expected values for residence time between published formulas and the simulations was done as well as an analysis between the particle size and the residence time. For this work, ANSYS 16.2, Inventor 2015, EasyFit, and Microsoft Office software were used, and a brief guide of the process followed by the software setting, running and data analysis is presented for each of the simulations.This work is study of what a rotary kiln is and its applications for creating expanded ceramics, for which, a brief discussion of what is a rotary kiln, what is clay and ceramics, heat transfer inside the kiln, the movement of the particles inside the kiln and simulation methods on ANSYS are exposed. Four simulations were performed, two using a smooth kiln but with different simulation techniques, and two using inserts inside the kiln to disrupt the flow of material along the kiln. A comparison in between the expected values for residence time between published formulas and the simulations was done as well as an analysis between the particle size and the residence time. For this work, ANSYS 16.2, Inventor 2015, EasyFit, and Microsoft Office software were used, and a brief guide of the process followed by the software setting, running and data analysis is presented for each of the simulations.