RE: RE: Pitfals of TARD-MATH
CMK LONG TERM RATIO of clean coal to dug-out stuff
( waste ) looks like 30% coal
See their Tech Rep-
Waste storage - 3 mt /y = they calculated 50/ 50 waste / ROM
Add washing and out of ROM we have 60% clean coal **
(tailings storage is separate from dry waste)
So , 1 mt dug out stuff , = 500kt ROM coal = 300kt clean coal.
3mt dug out = 900kt.clean coal
3mt clean coal sales mean 10mt mining vol , 70% of it waste.
Just look at WTN,GCE ,PRC history -their projections NEVER happened
or happened with 3 Y delay.
CMK is no different.-- and actually more "promotional", bordering on fraud .
That's long term.
2011 seems, it's even lower than 30%
CMK will live or die by the rock -to-coal ratio
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** Applying here data from TEC Elkview Mine :ROM coal 2005-2010 : 9.8mt ,clean coal 5.8mt =
60% clean coal out of ROM
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More color on continuous miner
Continuous mining is truly a misnomer, as room and pillar coal mining is very cyclical.
In the US, one can generally cut 20 ft (or a bit more with MSHA permission),
after which, the face has to be serviced,= roof bolted, ventilation pipes added
, before it can be advanced again.
. During servicing, the "continuous" miner moves to another face.
How much time it takes to cut 7m deep x 7 m wide x 2m high = 100 cubic meters(150t) ?
1/2 - 1 hr ?
How much time it takes to move the machine and set up at second face ?
1/2 hr ?
How much time it takes to service the 7 m x 7 m roof = drill tens of 6-8 ft long holes in the roof
insert 6-8 ft long steel bars and plates ( cost $ 3/ t + labor + bolter capex) ,cement them etc?
1hr ?
S
O,THE MINING IS AS UN- CONTINUOUS AS IT CAN GET.
(another explanation ,besides 60% rock mining at $ 150/ t cost , of low production)
30% -40%of time the machine is not working= moved around. between faces,
waiting for face roof to be secured.
The weak roof at Elk requires 6-8 ft-long bolts
Means ,the shaft must be at least 7 ft high.to accommodate the 6-8 ft drills and bolts + the drilling mach .
At aver 5 ' coal seam - here you go
cutting waste at $ 150 /t cost and sorting out coal from rock .
And GOD is trying to make TRADS to buy his shares by coming out with his tard-math :
"if I have a Lamborgini capable of driving 350 km/hr , and will drive it 20 hrs /day , 25 days / month - I will get to the moon in no time ... LOOOOL , geeesus , GOD,- your infinite wisdom aside .... how stupid do you think people are ?
One would think , GOD doesn't engage in scams . geeez .
Here you can see what REAL SEAM is :
TCK up to 15-20m = 60'
GCE Number 4 coal seam, has a thickness of between 2 and 12m. =36 '
Grande Cache Member is often a thick coal seam (for example the 10 m thick Jewel seam )
BTU 30m = 90' seam here'
https://content.edgar-online.com/edgar_conv_img/2005/05/10/0000950137-05-005648_C95140C95140Z0012.GIF
top seam in PRB 280'
This is only half of the coal seam. on picture
The coal bench the man is standing on is equally as thick
coalweb/Images/stripMine5.jpg
examples of others:
https://www.geokem.com/images/scans/Indonesian_coal_mine.jpg
https://www.crusherasia.com/images/upload/what-is-coal-history.jpg