World Class Projects

Arch Coal Company
Black Thunder Mine

Complete project management, detailed engineering, procurement and construction management services were provided to add two run-of-mine, semi-mobile, near-pit crushing stations and an overland conveying system to the existing Black Thunder Mine. The Black Thunder Mine produces nearly 30 million tons per year. The facility includes two semi-mobile, near-pit crushing units, each arranged with 500-ton capacity dump hoppers and fitted with passive dust control systems. Drag chain type feeders are fitted to the dump hoppers and reclaim the coal. Each feeds a crusher unit designed to crush 2,600 TPH of -60"x 0 run-of-mine coal, producing a 2"x 0 product. Coal is conveyed from each crushing unit to a permanent 72" wide overland conveyor. The conveyor moves 5,200 TPH of crushed coal at 1,000 FPM, a distance of 11,700' to an existing slot and silo storage area.

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