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Railroad cars outside preparation plant buildings.

649. Deerfield Preparation Plant, Covel, W. Va.

McDonald Engineering Company, Pittsburgh.

650. Humphrey Mixing Bin, McDonald Engineering Company, Pittsburgh, Pa.

C.E.I. Drying Plant and Storage Pools in foreground.

651. Hanna Coal Company C. E. I. Drying Plant

Facilities and Preparation Plant at Pursglove No. 15.

652. Pursglove No. 15 Preparation Plant, Monongalia County, W. Va.

Exterior buildings and railroad tracks at the Mathies Mine Pittsburgh Consolidation Coal Co., Preparation Plant.

653. Mathies Mine Preparation Plant

Preparation plant surrounded by other mine buildings.

654. Pittsburgh Consolidation Coal Company Central Preparation Plant, Jenkins, Ky.

Mathies Mine, Pittsburgh Coal Co., a division of Pittsburgh Consolidation Coal Company.

655. Mathies Mine Preparation Plant

Coal preparation plant buildings at Mathies Mine.

656. Mathies Mine Preparation Plant

Disco fuel brought by conveyor to screen house and loading boom (shown), where blended and sized for market. At right, ascending conveyor.

657. Disco Fuel

View of the preparation plant from the North East.

658. Georgetown Preparation Plant

Looking down from top of a raw coal conveyor at receiving station.

659. Georgetown Preparation Plant

'The Georgetown Preparation Plant was the worlds largest commercial coal preparation plant, having a capacity of 1,500 tons per hour of raw coal, or 1,275 tons per hour of clean coal. The plant has facilities for dumping bottom-dump tractor-trailer and end-dump trucks, and for rotary and bottom dumping of railroad cars. Coal from these dumps goes into a 1,500 ton bin, from which it is conveyed on a 641 foot belt conveyor to the primary shaker screens. Whereas the conventional coal perparation plant provides only one circuit for all coal washed, the Georgetown plant is unique, in that it provides three separate washing circuites, each of which is designed to most efficiently clean a certain size fraction.'

660. Georgetown Preparation Plant