Page 148 - Advanced Mine Ventilation

Generation of Respirable Coal Dust
1 / 2
Maximum a Respirable of Yield Total at Undersize Percent b Respirable 1 / 2 (RDI) AxB/100% Dust (B) [ 10/Density mm 10/Density Size 24.2 36.0 8.00 28.5 38.0 7.95 18.6 22.0 8.10 23.5 39.0 8.75 27.1 39.0 8.70 22.4 39.0 8.64 20.8 46.0 8.70 23.2 51.0 8.64 24.6 43.0 8.52 30.5 42.0 8.70 26.6 44.0 8.

Types (Mass Mean 67.3 75.0 84.5 60.3 69.5 57.5 45.2 45.5 57.3 72.5 60.5 70.5 67.3 61.3 65.0 24.8 42.3 35.2 8. Chapter

Coal (A) diameter ¼ 10/(density)1/2m in graph
Different of L37 Particles Percent) III 67.5 75.0 84.5 59.5 71.0 57.0 45.0 45.5 57.5 72.0 60.0 70.0 67.5 61.0 65.5 24.0 42.5 35.5 distribution

for II 67.0 74.5 84.0 61.0 69.0 57.5 45.5 45.5 57.0 73.5 61.0 71.0 67.5 61.5 65.0 25.5 42.0 35.0 Stoke’s mass
Dust Yield I 67.5 75.5 85.0 60.5 69.5 58.0 45.0 45.5 57.5 72.0 60.5 70.5 67.0 61.5 64.5 25.0 42.5 35.0 as here

Respirable Number expressed corresponding

of Sample 1 2 3 4 5 6 7 8 9 10 11 12 14 15 17 18 19 20 is size the to
Yield respirable referring

9.3 Experiment by
Table Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 a Maximum b Obtained