サイクロン集じん器の分離効率に関する実験補遺 : サイクロンに関する研究, 第7報

概要

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We have experimented on collection efficiencies of special types of cyclones with various kinds of powder. The following conclusions are obtained, which are useful for the design of a cyclone. 1. The series connection of more than three identical cyclones is not effective. 2. The collection efficiency, calculated from measured specific surface areas of feed, collected and exhausted powders, is approximately equal to the efficiency measured by weights of the powders. 3. An inclined cyclone is not generally inferior to the normal vertical one, until its axis becomes horizontal, but the dust chamber must be designed carefully. 4. Blow down types of cyclones improve the efficiency, and the secondary extracted gas volume is recommended to be about 10〜15%. On the other hand the efficiency of blow up type is lower and becomes near zero %, when the blow up volume is increased. 5. The optimum gas inlet velocity of a cyclone depends upon the dispersion property of the powder. The size of the dust port does not affect the performances of the cyclone. Usually powder particles are not crushed in the cyclone.
一般社団法人日本機械学会の論文
1957-01-25