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PeoplePeopleMgmt SkillsMgmt Skills
The Highwall Puzzle Pieces The Highwall Puzzle Pieces
Com
mun
icat
ion
Com
mun
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EquipmentEquipment
ReservesReserves
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People
Miner Operator 1
Endloader Operator 1
Mechanic 1
Electrician 1
General Laborer 3
Foreman 1
Total 8
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People• Labor shortage
• Two – twelve hours shifts / day
• Operate 4 – 6 days per week
• Maintenance 1 day per week
• Geographic locations change often
• Exposed to nature’s elements
• Perceived as a short term job
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Reserves
• Seam heights 2.5 – 28 ft
• Sustain a 1-3 year project
• 40,000 – 200,000 tpm
• Best if not previously auger mined
• Competent roof or ability to leave head coal
• Mine bottom up
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Equipment Spread
• Modified Continuous Miner
• Cascading Conveyor Cars
• Launch Vehicle
• Stacker - 54 inch belt
• Bulldozer - pushing coal
• 2 Endloaders – loading & unloading cars & loading trucks
• Water Storage Tank
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Communication
• Real time info in the cab
• Web based storage
• Real time communication with
home office (under development)
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Communication
• Real time info in the cab
• Web based storage
• Real time communication with
home office (under development)
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Communication
• Real time info in the cab
• Web based storage
• Real time communication with home office (under development)
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Management Skills
• Long term mine planning
• Synchronization of equipment
• Synchronization of qualities/ markets
• Keeping available wall
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Longwall/Highwall Similarities
• Sole purpose is to cut coal
• Initial reluctance to rely on the technology
• Typically the lowest cost coal from a mining complex
• Keeping gate roads ahead is as challenging as keeping wall available
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Safety
Mining Method NFDL Rate
ADDCAR 0.00
Surface Mining 1.59
Underground Mining 5.72
( 3rd Qt 2005 - YTD)
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Productivity
Mining Method TPEH
Western Surface Mines 22.1
ADDCAR 18.3
Longwall Mines 5.0
Eastern Surface Mines 4.2
Non-Longwall Underground Mines 3.4
( 3rd Qt 2005 - YTD)
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Narrow Pit System
• Footprint reduced from 90 – 45 ft
• Continuous coal flow
• Fewer fines
• Horizontal & vertical guidance
• 1,200 ft penetration
• Purchase – lease – contract mine
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ADDCAR Advantages
• Cascading cars
• Navigational System
• Volume
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Conclusion
If you keep wall …. you experience this