Effects of Side Outlet Stream of a Hydrocyclone on Particle Separation

• Main Authors: Shuo-cheng Chang, 張碩程
• Other Authors: 吳容銘
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/57425697057219838514

碩士 === 淡江大學 === 化學工程與材料工程學系碩士班 === 101 === In this essay, we used 18.5mm diameter hydrocyclone in my experimental device, with black silicon carbide as experimental particulates Fluent, a simulation program, to do process simulation. Furthermore, we discussed the separation of the hydrocyclone when we increased the stream of side outlet in the cylinder. also, we compared the performance as before. We simulated the status of the flow pattern, which is inside of the hydrocyclone. At the same time, we set discrete phase model to analyze the motivation of particulates for observing the efficiency of classification. As a result, the classifying efficiency of particulates will increase after we set the stream of side outlet. The reason is the hydrocyclone, which is traditional, will produce turbulence easily. After that, this situation will cause particulates to take more long time to leave the cylinder. That’s the reason why classification will be decreased. However, when we set the stream of side outlet, it will decrease the effect which is caused by turbulence. The space time of particulates will shorter than before. The particles will separate efficiently. In conclusion, we can say with reasonable confidence that the separation of the hydrocyclone will improve when it is set with the stream of side outlet.