Research on Processing Technology of Calcined Kaolin Powder Using A Fluidized Bed Jet Mill at Different Temperatures

DOI

10.2991/icmsa-15.2015.86How to use a DOI?

Keywords

Jet mill, Calcined kaolin powder, High temperature, Grinding kinetic energy, Particle size.

Abstract

The calcined kaolin powder was obtained using a fluidized bed jet mill at the temperatures 17 and 280 .The theoretical arithmetic, numerical simulation and experiment were used to compare and discuss the results at the two temperatures. The particle size D50=2.401 m D50=2.003 m of kaolin powder was obtained. The theoretical arithmetic shows that the outlet velocity of the nozzle at the temperature 280 is higher (38%) than that at the temperature 17 . The grinding kinetic energy of the jet mill at the temperature 280 is twice as that at the temperature 17 . The numerical simulation of grinding cavity at the temperatures 17 and 280 shows that nozzle axial velocity is 513m/s at the temperature 17 and nozzle axial velocity is 712m/s at the temperature 280 . Therefore, the grinding particle size at the temperature 280 is smaller than that at the temperature 17 . The yields of calcined kaolin powder and energy consumption of jet mill are obtained through the experiment. The yield of calcined kaolin powder at the temperature 280 is higher (14%) than that at the temperature 17 . The energy consumption of air jet mill at the temperature 280 is higher (30%) than that at the temperature 17 . The results show that the calcined kaolin powder at the temperature 280 is beneficial to grinding materials with the smaller particle size and higher yield than that at the temperature 17 . Otherwise, the energy consumption of jet mill increase from the temperature 17 to 280 .

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Cui-Ping Yan
AU  - Ming-Xing Zhang
PY  - 2014/06
DA  - 2014/06
TI  - Research on Processing Technology of Calcined Kaolin Powder Using A Fluidized Bed Jet Mill at Different Temperatures
BT  - Proceedings of the 2015 International Conference on Material Science and Applications
PB  - Atlantis Press
SP  - 475
EP  - 481
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.86
DO  - 10.2991/icmsa-15.2015.86
ID  - Yan2014/06
ER  -