34 lines
No EOL
901 B
Text
34 lines
No EOL
901 B
Text
Use Average Weighted Grade to calculate Recovery and Processing cost then use these two to calculate cut off grade using the formula cof(g) = processing cost / ((net price) * recovery). Use inputs from a table. Make graphs in Python for the Cutoff Grade, Recovery, Processing Cost.
|
||
|
||
|
||
cof(g) = processing cost / ((net price) * recovery)
|
||
|
||
|
||
recovery = Rmax x (1−e^(−k⋅G))
|
||
|
||
processing cost = C0 + C1/G
|
||
|
||
1. Fixed + Grade-Dependent Cost Model
|
||
processing cost = C0 + C1/G
|
||
|
||
2. Tabulated Cost Based on Grade
|
||
|
||
Table equivalent for the given grade
|
||
|
||
3. Regression from Real Cost Data (Realist)
|
||
|
||
Linear: C = a + bG
|
||
|
||
Inverse or logarithmic: C = a + b/G or C = alog(G) + b
|
||
|
||
1. Empirical Linear Model
|
||
|
||
recovery = a + b × grade
|
||
|
||
2. Exponential or Logistic Model (Realist)
|
||
|
||
recovery = Rmax x (1−e^(−k⋅G))
|
||
|
||
3. Stepwise or Tabulated Recovery
|
||
|
||
Table equivalent for the given grade |