Research Article
Explosion Flame and Pressure Characteristics of Nonstick Coal Dust and the Inhibition of Explosion Suppressants
Table 5
Inhibition of an explosion suppressant on the explosion pressure of nonstick coal dust.
| (%) | SiO2 | KCl | NH4H2PO4 | Pmax (MPa) | (dP/dt)max (MPa/s) | Pmax (MPa) | (dP/dt)max (MPa/s) | Pmax (MPa) | (dP/dt)max (MPa/s) |
| 0 | 0.63 | 40.79 | 0.63 | 40.79 | 0.63 | 40.79 | 10 | 0.57 | 35.67 | 0.56 | 34.82 | 0.52 | 30.43 | 20 | 0.49 | 32.18 | 0.47 | 31.41 | 0.42 | 26.41 | 30 | 0.43 | 30.20 | 0.41 | 29.95 | 0.36 | 22.68 | 40 | 0.38 | 28.75 | 0.36 | 27.63 | 0.30 | 18.23 | 50 | 0.34 | 26.49 | 0.32 | 25.33 | 0.25 | 15.14 | 60 | 0.31 | 24.17 | 0.30 | 23.67 | 0.21 | 13.95 | 70 | 0.29 | 23.06 | 0.26 | 21.93 | — | — | 80 | 0.27 | 22.12 | 0.24 | 20.46 | — | — |
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, mass percentage of explosion suppression dust mixed with nonstick coal dust. |