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

Table 7

Summary of explosion pressure data for D 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
D200-1	9.18	9.511	60	0.12	9.45	2.56	No
D200-2			250	0.12	14.17	3.85	No
D200-3			500	0.11	13.23	3.59	No
D200-4			750	0.11	13.23	3.59	No
D200-5			1000	0.12	11.34	3.08	No
D200-6			1500	0.098	15.59	4.23	No
D300-1	9.74	7.158	60	0.13	21.73	5.90	No
D300-2			250	0.13	15.12	4.10	No
D300-3			500	0.13	18.89	5.13	No
D300-4			750	0.12	20.78	5.64	No
D300-5			1000	0.13	19.84	5.39	No
D300-6			1500	0.13	12.28	3.33	No
D500-1	8.45	5.039	60	0.12	10.86	2.95	No
D500-2			250	0.10	19.84	5.39	No
D500-3			500	0.12	26.92	7.31	No
D500-4			750	0.13	19.37	5.26	No
D500-5			1000	0.13	25.98	7.05	No
D500-6			1500	0.11	21.26	5.77	No