Page 183 - Advances In Productive, Safe, and Responsible Coal Mining

Out-of-seam dilution: Economic impacts and control strategies
Ash Se Pb Hg As S (ppm) (ppm) (ppm) (ppm) (ppm) (%) 146 43 0.6 25.6 1.68 52.22 138 40.9 0.55 23.3 1.6 59.81 121 37.3 0.68 21.9 1.56 68.32 140 41.5 0.57 24.0 1.6 57.48 2.2 15.2 0.08 2.7 0.73 6.29 3.9 101 0.27 12.8 2.93 19.88 3.0 4.6 0.11 3.6 2.81 24.53 6.1 8 0.16 4.8 4.
sample

channel Yield (%) 0.226 0.475 0.007 0.71 63.04 1.73 0.48 0.40 0.32 0.02 66.00 0.012 0.00 0.01 66.72 0.72

#2
1
mine Partition number 23.2 3.3 0.3 100.0 100.0 99.9 97.0 93.2 0.4 8.3 0.0

for only
analysis Wt (%) 18.0% 5.4 80.3 14.3 100 71.2% 88.5 2.4 0.7 0.6 0.5 7.3 100 10.8% 1.3 98.7 100 100% seam versus

Data average total SG.

9.1 Cumulative Cumulative Cumulative %Difference point¼1.9
Table Corrected SG Roof 1.96 2.08 2.20 Seam 1.28 1.48 1.55 1.72 1.76 2.19 Floor 2.02 2.57 Total Cut