Explosion Pressure and Minimum Explosible Concentration Properties of Metal Sulfide Ore Dust Clouds

Table 3

Characteristics of ignition head explosion with different energy.

Ignition head energy (kJ)	Ignition head powder quantity (g)	Pmax (MPa)	(dP/dt)max (MPa·s^−1)	Kst (MPa·m·s^−1)
1	0.24	0.013	5.20	1.41
2	0.48	0.031	7.09	1.92
3	0.72	0.046	5.67	1.54
4	0.96	0.050	6.61	1.80
6	1.44	0.069	6.14	1.67
8	1.92	0.090	9.92	2.69
9	2.16	0.095	8.97	2.44
10	2.40	0.120	8.03	2.18
12	2.88	0.130	13.23	3.59