Research Article
Explosion Pressure and Minimum Explosible Concentration Properties of Metal Sulfide Ore Dust Clouds
Table 5
Summary of explosion pressure data for B group.
| | Sample type | Sulfur content (%) | D50 (μm) | Concentration (g·m−3) | Pmax (MPa) | (dP/dt)max (MPa·s−1) | Kst (MPa·m·s−1) | Whether or notto explode |
| | B200-1 | 25.68 | 9.467 | 60 | 0.14 | 16.06 | 4.36 | No | | B200-2 | 250 | 0.15 | 28.34 | 7.69 | Yes | | B200-3 | 500 | 0.18 | 14.64 | 3.97 | Yes | | B200-4 | 750 | 0.19 | 15.59 | 4.32 | Yes | | B200-5 | 1000 | 0.25 | 12.28 | 3.33 | Yes | | B200-6 | 1500 | 0.19 | 25.03 | 6.80 | Yes |
| | B300-1 | 26.18 | 6.185 | 60 | 0.11 | 8.03 | 2.18 | No | | B300-2 | 250 | 0.15 | 16.06 | 4.36 | Yes | | B300-3 | 500 | 0.16 | 14.17 | 3.85 | Yes | | B300-4 | 750 | 0.19 | 12.28 | 3.33 | Yes | | B300-5 | 1000 | 0.24 | 14.64 | 3.97 | Yes | | B300-6 | 1500 | 0.22 | 16.06 | 4.36 | Yes |
| | B500-1 | 25.60 | 3.563 | 60 | 0.11 | 7.09 | 1.29 | No | | B500-2 | 250 | 0.15 | 20.31 | 5.51 | Yes | | B500-3 | 500 | 0.19 | 25.51 | 6.92 | Yes | | B500-4 | 750 | 0.20 | 25.03 | 6.80 | Yes | | B500-5 | 1000 | 0.21 | 11.81 | 3.21 | Yes | | B500-6 | 1500 | 0.18 | 13.23 | 3.59 | Yes |
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