Open Access
Table 1.
Factors affecting the boot process
| Factors | Symbol. | Cod e | Levelsof factors | Range of variation | ||
|---|---|---|---|---|---|---|
| ‐ 1 | 0 | + 1 | ||||
| Angle of inclination of the sieve, deg. | β | x1 | 35 | 45 | 55 | 10 |
| Width of the slit in the sieve, mm | a | x2 | 5 | 15 | 25 | 10 |
| Length of the sieve, cm | l | x3 | 25 | 35 | 45 | 10 |
| Installation interval between sieves | hp/B | x4 | 1 | 2 | 3 | 1 |
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