Powder Mixer Power consumption
Specific (volumetric) power consumption for main types of powder mixers
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| Section summary |
|---|
| 1. Definition |
| 2. Specific energy
input for common powder mixers |
1. Parameters influencing mixing power
Depending on the type of mixing principles involved, their size, speed and agitator design, mixers will be more or less energy intensive. Free fall mixers (rotary) which are using diffusivity as main mixing mechanism will typically have the smaller energy consumption, convective mixers will be higher while the most energy will be consumed by shear mixers.
The table below is giving the typical specific power consumption for the usual types of powder mixers found in the industry.
2. Specific energy inputs for common mixers
What is the power consumption of powder mixers ?
What is the energy consumption / power input necessary for mixing powders or bulk solids :| Mixer | Specific energy input kW/m3 |
|---|---|
| Rotating mixers (diffusive) Drum blenders, bi-cone, V-blender, bin blenders |
<1 |
| Convective mixers Ribbon blenders |
1-5 |
| |
|
| Convective mixers Paddle mixers Vertically agitated mixers (Amixon type) |
5-10 |
| Shear mixers Ploughshare mixers, mixers with deagglomerators |
10-20 |
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Perry, 8th edition, page 21-41, McGraw-Hill