Departmental Bulletin Paper 磁気浮上攪拌翼を用いた振動型混合装置の開発(コイルによる交流磁場を用いた加振方式の場合)
Development of Vibratory Mixer by Using Magnetically Levitated Fin (Vibration Method Using an Alternating Magnetic Field by the Coil)

近藤, 優也  ,  岡部, 匡  ,  濱畑, 貴之  ,  臼山, 智洋

45pp.51 - 56 , 2016-07-31 , 宮崎大学工学部
In order to improve the efficiency of mixing process, the vibratory mixer by using magnetically levitated fin is developed. The stirring fin of this mixer is levitated with the magnetic force in stirring tank, and excited from outside stirring tank by periodically changing electromagnetic field. The electromagnetic field is generated by a coil installed outside the stirring tank. By adopting this exciting system, mixed liquid in the stirring tank can be isolated from external environment, and then contamination into a mixed liquid can be prevented completely. In order to investigate vibration characteristics of the stirring fin, a prototype of this mixer is manufactured and experiments are performed. Experiments are executed on condition that stirring tank is filled with water. Frequency response of peak-to-peak (pp) amplitude and waveform of stirring fin are shown. The developed vibratory mixer of electromagnetic type can achieve competent performance for mixing, i.e., the resonance frequency is 14.4Hz and pp amplitude of the stirring fin is 8.7mm. From the results of the experiments, effectiveness of the developed vibratory is confirmed.

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