Coal preparation in France's Lorraine Basin
The Freyming preparation plant is one of the most modern in the Lorraine Basin. It is also the one with the highest capacity - 28,500 raw metric tons or 20,000 clean tons per day, washing coal 20 hours per day. At the top of the mine shaft, the skips are emptied onto metal apron feeders, which provide a regular flow of coal onto two 1200-millimeter (47-1/4-inch) wide rubber belt conveyors. The conveyors lead to the pre-treatment plant for run-of-mine coal and then to the washing plant. At the pre-treatment plant, the conveyors deliver the coal to two scalping screens, which make the separation at 1020 millimeters (40-inch) at a rate of 750 tons per hour per screen. The undersize is removed by a belt equipped with an overband magnetic separator to remove tramp iron. Timber that comes along with the plus-120-millimeter (plus-4-3/4-inch) material is eliminated by immersion in a water drew-boy, after which the coal and the waste rock are crushed in a jaw crusher set at 150 millimeters (6 inches). The coal preparation plant proper consists of two identical, parallel but independent lines with a total capacity of 1600 tons per hour. The plant uses screens, dense media separation and jigs to produce three washed products. The materials handling equipment, including train loading, is emphasized in the description. A detailed flowsheet of the plant is given. (LTN)
- OSTI ID:
- 6515063
- Journal Information:
- World Coal; (United States), Vol. 8:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL PREPARATION
COST
HEAVY MEDIA SEPARATION
JIGS
MATERIALS HANDLING
COAL PREPARATION PLANTS
FLOWSHEETS
FRANCE
COMMINUTION
CONCENTRATORS
DIAGRAMS
EUROPE
INDUSTRIAL PLANTS
SEPARATION PROCESSES
WESTERN EUROPE
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage