| Summary: | 碩士 === 國立中央大學 === 機械工程研究所 === 93 === In a regeneration of filter granular system, the mainly disadvantages of sand/fly ash segregation by using traditional pneumatic transportation are sand broken and incomplete segregation. However, using vibrating screen to segregate sand and fly ash is a good method. The purpose of this study is to design a vibrating screen system, which can be applied into the regeneration of filter granular system in high temperature. First, the batch vibrating screen experiments are carried out to explore the optimum vibrating conditions which can separate sand and fly ash efficiently. The influence of screen aperture size on the screen efficiency and screen rate are also investigated in the batch screen experiments. Moreover, the results of optimum vibrating conditions from the batch screen experiments are applied into the continuous vibrating screen system. We add the continuous vibrating screen into the granular filter bed. The result demonstrate that the vibrating screen system can segregate sand and fly ash efficiently with less sand broken.
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