Back to Search
Start Over
The effect of interparticle cohesion on powder mixing in a ribbon mixer
- Source :
- AIChE Journal. 62:1023-1037
- Publication Year :
- 2015
- Publisher :
- Wiley, 2015.
-
Abstract
- The effect of interparticle cohesion on powder mixing in a ribbon mixer was studied by means of the discrete element method. It is shown that with an increase in the cohesion, the mixing rate and uniformity of mixing deteriorate, the coordination number increases indicating the loss of the ability of particles to be engaged in free flowing motion, and a majority of particles have a stronger tangential velocity allowing bulk angular motion of particles. Conversely, with a decrease in the cohesion, more particles have larger axial velocities, which will increase convective motion in the axial direction. When the cohesion is reduced, the number of particles having large radial stresses increases, and normal stress in the axial direction remains mostly unchanged. The ribbon mixer can mix cohesive particles in a wide range of the Bond numbers without causing large stresses. © 2015 American Institute of Chemical Engineers AIChE J, 62: 1023–1037, 2016
- Subjects :
- Convection
Environmental Engineering
Materials science
Particle number
General Chemical Engineering
Coordination number
02 engineering and technology
021001 nanoscience & nanotechnology
Discrete element method
Classical mechanics
Circular motion
020401 chemical engineering
Ribbon
Cohesion (chemistry)
0204 chemical engineering
Composite material
0210 nano-technology
Scaling
Biotechnology
Subjects
Details
- ISSN :
- 00011541
- Volume :
- 62
- Database :
- OpenAIRE
- Journal :
- AIChE Journal
- Accession number :
- edsair.doi...........24dc0e88e28adaa8f667f03680788ff4