Abstract:

The mixing test of two-component particles with different diameters were conducted in a cylindrical rotating drum to simulate rotary drum retorting. The influence of rotating rate on the radial mixing of particles was investigated. The Lacey index was taken as a particle mixing indicator. Mixing index and mixing mechanism were studied at 5 different drum rotating rates. A favorite mixing condition achieved at 1/6 vessel filling，0 degree dip angle and 13.3 r/min rotating rate，where the convective mixing and diffusive mixing dominated. A“double oscillating trend”showed in particle mixing.