Table 3 The central composite rotatable design conditions for investigating the high-consistency mechanical refining.
Experiment | Gap width (mm) | Disc rotation (RPM) |
|---|---|---|
RB1 | 1.22 (-1) | 1718 (-1) |
RB2 | 2.28 (+ 1) | 1718 (-1) |
RB3 | 1.22 (-1) | 2782 (+ 1) |
RB4 | 2.28 (+ 1) | 2782 (+ 1) |
RB5 | 1 (-1.41) | 2250 (0) |
RB6 | 2.5 (+ 1.41) | 2250 (0) |
RB7 | 1.75 (0) | 1500 (-1.41) |
RB8 | 1.75 (0) | 3000 (+ 1.41) |
RB9 (CP) | 1.75 (0) | 2250 (0) |