Research Article
Complex Effects of Drum Hub Forms and Structural Parameters on Coal Loading Performance
Table 3
The statistical analysis of particle velocities in three directions and coal loading rate.
| n (rpm) | Drum | X direction (m/s) | Y direction (m/s) | Z direction (m/s) | Loading rate (%) |
| 40 | I | 0.185 | 0.126 | 0.198 | 48.19 | II | 0.243 | 0.209 | 0.217 | 52.75 | III | 0.239 | 0.332 | 0.230 | 56.46 | IV | 0.219 | 0.371 | 0.244 | 55.90 | V | 0.241 | 0.459 | 0.238 | 51.53 | VI | 0.288 | 0.464 | 0.266 | 56.67 | VII | 0.265 | 0.368 | 0.333 | 62.77 | VIII | 0.245 | 0.238 | 0.229 | 57.11 |
| 60 | I | 0.276 | 0.200 | 0.211 | 49.99 | II | 0.279 | 0.286 | 0.262 | 55.91 | III | 0.281 | 0.391 | 0.250 | 60.33 | IV | 0.267 | 0.469 | 0.139 | 54.77 | V | 0.261 | 0.538 | 0.254 | 50.63 | VI | 0.337 | 0.554 | 0.290 | 58.70 | VII | 0.333 | 0.462 | 0.317 | 59.48 | VIII | 0.261 | 0.319 | 0.234 | 58.77 |
| 80 | I | 0.437 | 0.308 | 0.245 | 50.68 | II | 0.402 | 0.393 | 0.237 | 51.74 | III | 0.461 | 0.511 | 0.283 | 54.24 | IV | 0.424 | 0.572 | 0.221 | 51.95 | V | 0.429 | 0.680 | 0.211 | 48.44 | VI | 0.544 | 0.673 | 0.230 | 57.88 | VII | 0.547 | 0.573 | 0.284 | 57.24 | VIII | 0.483 | 0.380 | 0.219 | 56.54 |
| 100 | I | 0.531 | 0.344 | 0.144 | 45.87 | II | 0.546 | 0.430 | 0.190 | 48.25 | III | 0.573 | 0.554 | 0.133 | 51.56 | IV | 0.577 | 0.621 | 0.138 | 49.57 | V | 0.673 | 0.746 | 0.143 | 48.00 | VI | 0.691 | 0.722 | 0.128 | 53.75 | VII | 0.596 | 0.591 | 0.162 | 54.40 | VIII | 0.487 | 0.427 | 0.148 | 53.74 |
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