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• Main Authors: Duan-you Syu, 許端祐
• Other Authors: Shu-san Hsiau
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/22174655557110720873

碩士 === 國立中央大學 === 機械工程學系 === 105 === This study is based on the high temperature dust removal technology- Moving Granular Bed Filter and other subsystems (e.g. Gas delivery system, Filter/dust screening system and Filter recycle system) operation test for long term. The experimental results can provide the future development of high-temperature dust removal technology and commercial basis. This thesis investigated the operation of granular bed filter in different conditions of dust concentration, the regeneration efficiency is affected by the different separation rates due to different operation methods and dust contents in the drum screening system, the influence of overall efficiency of the granular bed filter from trace dust through the regeneration cycle pipeline back into the granular bed in the regeneration process, and the variation of the whole collection efficiency, pressure drop and export dust size in different inlet dust concentration. The experimental results showed that the amount of dust contents cannot affect its overall screening efficiency in the drum screening system. For the overall filter efficiency of the granular bed filter, the import with low dust concentration can provide great collection efficiency and low export dust size, each of them are more than 99% and less than 1.75μm respectively. But when the condition of high dust concentration that collection efficiency and dust size has a large fluctuation due to supersaturation of the dust content inside the granular bed. The experimental results show that the mass flow rate of filter media is 480 g/min and the rotational speed is 21.5 rpm. On the condition of inlet velocity of 70 cm/s, the collection efficiency and dust size is 98.6% and 3.65 μm.