Research Article
Study on the Relation between Tailing Particle Size and Tailing Slurry Underflow Concentration
Table 2
Results of dynamic thickening test.
| Sample no. | Test no. | Slurry feeding speed | Slurry concentration | Slurry weight (kg) | Tailing density | Tailings consumption (kg) | Time (min) | Underflow concentration | Overflow solid content f/ppm | /(L/min) | C0 (%) | Before test | γ/(g·cm−3) |
| Mine 1 | 1 | 0.12 | 17.5 | 60 | 56.19 | 2.01 | 0.666 | 30 | 67.95 | 48.35 | 2 | 0.15 | 17.5 | 56.19 | 51.33 | 2.01 | 0.851 | 30 | 67.86 | 78.22 | 3 | 0.17 | 17.5 | 51.33 | 45.67 | 2.01 | 0.992 | 30 | 67.8 | 96.21 | 4 | 0.21 | 17.5 | 45.67 | 38.63 | 2.01 | 1.233 | 30 | 67.13 | 126.29 | 5 | 0.25 | 17.5 | 38.63 | 30.53 | 2.01 | 1.416 | 30 | 66.86 | 156.21 | 6 | 0.27 | 17.5 | 30.53 | 21.63 | 2.01 | 1.558 | 30 | 66.57 | 267.33 | 7 | 0.30 | 17.5 | 21.63 | 11.86 | 2.01 | 1.709 | 30 | 66.38 | 352.69 |
| Mine 2 | 1 | 0.32 | 14 | 144.7 | 134.05 | 2.611 | 1.491 | 30 | 67.86 | 58.22 | 2 | 0.38 | 14 | 134.05 | 121.44 | 2.611 | 1.765 | 30 | 67.8 | 94.21 | 3 | 0.46 | 14 | 121.44 | 106.31 | 2.611 | 2.119 | 30 | 67.13 | 126.29 | 4 | 0.58 | 14 | 106.31 | 87.25 | 2.611 | 2.668 | 30 | 66.86 | 236.21 | 5 | 0.73 | 14 | 87.25 | 63.42 | 2.611 | 3.336 | 30 | 64.38 | 372.69 |
| Mine 3 | 1 | 0.82 | 10.1 | 130 | 103.86 | 2.322 | 2.64 | 30 | 52.25 | 321.73 | 2 | 0.70 | 10.1 | 103.86 | 81.67 | 2.322 | 2.242 | 30 | 52.78 | 195.17 | 3 | 0.55 | 10.1 | 81.67 | 64.2 | 2.322 | 1.765 | 30 | 53.27 | 115.23 | 4 | 0.46 | 10.1 | 64.2 | 49.64 | 2.322 | 1.47 | 30 | 54.14 | 97.21 | 5 | 0.33 | 10.1 | 49.64 | 39.08 | 2.322 | 1.067 | 30 | 54.53 | 90.45 |
| Mine 4 | 1 | 0.42 | 16.5 | 100 | 85.82 | 2.871 | 2.34 | 30 | 72.95 | 73.58 | 2 | 0.51 | 16.5 | 85.82 | 68.69 | 2.871 | 2.826 | 30 | 72.66 | 96.22 | 3 | 0.61 | 16.5 | 68.69 | 48.35 | 2.871 | 3.357 | 30 | 72.23 | 196.21 | 4 | 0.67 | 16.5 | 48.35 | 25.87 | 2.871 | 3.708 | 30 | 71.43 | 326.29 |
| Mine 5 | 1 | 0.51 | 13.2 | 145 | 128.21 | 2.88 | 2.217 | 30 | 72.63 | 62.68 | 2 | 0.60 | 13.2 | 128.21 | 108.64 | 2.88 | 2.583 | 30 | 71.94 | 101.3 | 3 | 0.72 | 13.2 | 108.64 | 84.86 | 2.88 | 3.138 | 30 | 69.34 | 187.44 | 4 | 0.76 | 13.2 | 84.86 | 59.96 | 2.88 | 3.287 | 30 | 67.75 | 215.87 | 5 | 0.88 | 13.2 | 59.96 | 31.21 | 2.88 | 3.795 | 30 | 66.93 | 312.33 |
| Mine 6 | 1 | 0.44 | 14 | 148 | 133.42 | 2.56 | 2.041 | 30 | 72.52 | 65.43 | 2 | 0.56 | 14 | 133.42 | 115.2 | 2.56 | 2.551 | 30 | 72.24 | 123.47 | 3 | 0.63 | 14 | 115.2 | 94.45 | 2.56 | 2.905 | 30 | 71.85 | 193.89 | 4 | 0.68 | 14 | 94.45 | 72.3 | 2.56 | 3.101 | 30 | 71.33 | 247.22 | 5 | 0.73 | 14 | 72.3 | 48.48 | 2.56 | 3.335 | 30 | 70.82 | 342.1 |
| Mine 7 | 1 | 0.22 | 16.7 | 150 | 142.48 | 2.689 | 1.256 | 30 | 81.65 | 65.45 | 2 | 0.28 | 16.7 | 142.48 | 133.14 | 2.689 | 1.56 | 30 | 81.14 | 78.22 | 3 | 0.46 | 16.7 | 133.14 | 117.61 | 2.689 | 2.592 | 30 | 80.8 | 126.21 | 4 | 0.59 | 16.7 | 117.61 | 97.97 | 2.689 | 3.281 | 30 | 79.4 | 156.29 | 5 | 0.70 | 16.7 | 97.97 | 74.55 | 2.689 | 3.911 | 30 | 78.57 | 291.36 | 6 | 0.81 | 16.7 | 74.55 | 47.5 | 2.689 | 4.517 | 30 | 77.46 | 461.53 |
| Mine 8 | 1 | 0.44 | 14 | 158.1 | 143.86 | 2.451 | 1.994 | 30 | 78.12 | 72.13 | 2 | 0.58 | 14 | 143.86 | 124.97 | 2.451 | 2.643 | 30 | 77.86 | 123.28 | 3 | 0.67 | 14 | 124.97 | 102.98 | 2.451 | 3.079 | 30 | 77.35 | 190.47 | 4 | 0.82 | 14 | 102.98 | 76.08 | 2.451 | 3.766 | 30 | 76.78 | 283.45 | 5 | 0.97 | 14 | 76.08 | 44.26 | 2.451 | 4.455 | 30 | 76.36 | 367.81 |
| Mine 9 | 1 | 0.78 | 16.7 | 130 | 103.6 | 3.009 | 4.409 | 30 | 73.37 | 324.17 | 2 | 0.66 | 16.7 | 103.6 | 81.25 | 3.009 | 3.732 | 30 | 77.05 | 195.23 | 3 | 0.56 | 16.7 | 81.25 | 62.46 | 3.009 | 3.138 | 30 | 78.62 | 107.21 | 4 | 0.49 | 16.7 | 62.46 | 45.8 | 3.009 | 2.782 | 30 | 78.73 | 90.45 | 5 | 0.45 | 16.7 | 45.8 | 30.58 | 3.009 | 2.542 | 30 | 78.78 | 87.62 |
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