A Study on the Mixing Characteristics of Solid in Vibrating Feeder for Stable Operations of Fluidized Bed Combustion

유동층 연소로 안전조업을 위한 진동 공급기내의 고체입자 혼합특성에 관한 연구

  • 김미영 (충북대학교 화학공학과) ;
  • 조병렬 (충주대학교 환경공학과) ;
  • 박상찬 (충주대학교 환경공학과) ;
  • 이동규 (충북대학교 공업화학과) ;
  • 김의식 (충북대학교 화학공학과)
  • Published : 1998.09.01


This work has been carried out to study the mixing characteristics of solid in vibrating feeder for stable operations of fluidized bed combustion. The system consisted of two particles such that fine particles were located on the top of the coarse particles before vibratory mixing had started. Effect of particle size, particle densities, vibration amplitude and vibration frequency were experimentally obtained. Also, a diffusion model was applied in interpreting the experimental results. From these results, the following empirical equation for the diffusivity was obtained. $0.87{(\frac{d_c}{d_f})}^{0.73}\;{(\frac{\rho_f}{\rho_c})}^{0.53}(A^2f)$.