Share
3,317 Posts.
lightbulb Created with Sketch. 64
clock Created with Sketch.
27/03/18
17:12
Share
Originally posted by phuket guy
↑
Guys im sitting doing some bulish calcs again - like my last valuation and thinking why is it so high. look to any minning engineer readers or more infomred than me guys can you help me here.
lets say CLA does a 2mtpa mine - starting with open pit with trench pit type mine (for example)- as in without too much overburden.- or same applies in an underground shaft mine.
my question is:
Is there a common estimated figure on how much of that 2mtpa would actually be DOF orebody being dug up? Im thinking about 80%- I know its different in each case- buts is there any average figure to use? -or is it a "how long is a piece of string" question?
or is a 2mtpa through-put normally after discounting all the overburden -as in thats just the amount of Dof orebody to be pulled up as my last cals were based on?
any help friom anyone actually in the game would be much appreciated
Expand
It would all be DOF with some high/low grade stockpiling to the side potentially. No point feeding unmineralised dirt through the plant.
Hence strip ratio is important. How much do you need to dig up to get that DOF to actually put through the plant.
Last edited by
HAC30 :
27/03/18