Research Article
Modeling of Oxidation Process of Coal Tar Pitch in Rotating Kilns
Table 4
The motion forms of particles in rotary kiln.
| | Motion form | Surging | Rolling | Cascading |
| | Schematic | | | |
| Froude number, Fr
| 0 < Fr < 10−4 | 10−4 < Fr < 10−2 | 10−3 < Fr < 10−1 |
| Filling degree, f
| f > 0.1 | f > 0.1 | f > 0.1 |
| | Rotation rate (rpm) | 0.095 | 0.95 | 9.5 |
| | Contours of simulated solid concentration | | | |
| | Contours of simulated particle velocity vector | | | |
| | Froude number, Fr | 2.04×10−6 | 2.04×10−4 | 2.04×10−2 |
| | Filling degree, f | 0.11 | 0.11 | 0.11 |
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