Theoretical Analysis And Experimental Study On New-style Cyclone

In order to improve the separating efficiency of cyclone, this paper analyzed the traditional cyclone at the beginning, and then provides a new design method of cyclone. The new type of cyclone is designed by a new theoretical structure which allows for a smaller particle size separation particles.This paper describes two aspects, namely theoretical and experimental aspects. In the theoretical aspect, the paper describes a new type of cyclone model, a new theory of derivation, and gives a different equation method for numerical calculation, and then use MATLAB software to calculate the theoretical calculation of the specific results of the new cyclone. Comparing to conventional cyclone whose separating efficiency for the particles of 10 microns and less is low, the new type of cyclone can separate the particle whose size is less than 1 micron.Theory also shows that, for the new cyclone, the speed of air has double affect. When the speed is high, smaller particles can be separated by centrifugal force, but the time which the particle uses to pass the cyclone will be less. Therefore, within a certain range, the increase of wind speed will cause a separation efficiency descend. This indicates that when you design the cyclone, you cannot increase the air speed for the purpose of increasing the efficiency of separation.In the experiment aspect, this paper tries to verify the performance of the new type of cyclone by separating alumina, coal ash, and talc particles. The results show that the new type of cyclone is better than conventional cyclone in separation efficiency, and for alumina whose concentrated particle size is 48 micron, the separation efficiency is 98.9%, while for 4 microns particles, the separation efficiency nearly comes to 60%.