CRANDALL CANYON EXPANSION 

TIC was awarded the contract for engineering, construction and procurement JV with Roberts & Schaefer. 

Scope of work consisted of surface expansion that included a new 2,000 TPH facility comprised of storage, screening, crushing, sampling and automated truck loading.

The facility ties into an existing transfer house at the mine mouth and accepts 8” run-of-mine coal. Coal is stockpiled through a 40,000 ton stacking tube, then screened and crushed into a 2” final product. The automated truck loadout is capable of loading tandem coal highway haulers in less than 2 minutes each. The project was completed with little laydown area and had to tie into the existing mine without interrupting operations longer than four days.

Technical Details

• One Jeffery Flextooth impact crusher (800 TPH) and one 80’ high stacking tube and headhouse
• Two Carman pile activators/gyrated drawdown hoppers and one Ramsey two-stage sampling system with a 48” sweep and module screw and one Ramsey belt scale
• One 48” 394’ stacking conveyor
• One 54” 440’ reclaim conveyor and 48” x 320’ loadout conveyor
• One Picor truck loadout facility with 270 ton surge bin and 21.5 ton weigh bin, 180 lf of 12’ diameter multi-plate tunnel and 220 lf of 42” culvert
• New crushing and screening building