According to the principle of flash drying,the domestic gluten flour drying system was analized systematically and the improvement of the key equipment.

Computer simulation of pneumatic drying wet alumina particulates in a vertical pipe;

Numerical simulation of heat and mass transfer in pneumatic drying process of wet alumina particles

The numeral solution of the mathematical simulation equation stood for gas flow drying process of Pseudo-boehmite was obtained by using the standard four-step Runge-Kutta method in Matlab software.

The numeral solution of the mathematical simulation equation stood for gas flow drying process was obtained by the standard fourstep RungeKudra method.

This paper introduces the copper concentrate drying technology in Flash Smelting processes,and compares characteristic and application status between the flash dryer and steam dryer,the result makes know that the steam dryer has evident advantage in terms of equipment investment,energy consumption and environment protection,it is provided with extensive use.