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NEW ELK COALCOAL PROCESSING
Coal is processed to remove the majority of the rock before it leaves the site.
• Coal is fed into the plant by a loader feeding the conveyer belt.
• The plant is designed to run at 450 tonnes/hour of feed coal.
• Coal is split into 2 streams (coarse and fine) by use of vibrating screens.
• Coarse coal stream has magnetite added and is put through a heavy media cyclone.
• Fine coal stream is fed into a flotation circuit.
• Both coal streams are put through a dewatering cyclone before being combined and stacked for export.
• Coarse rock stream is dewatered over a vibrating screen, with the water being recycled.
• The coal will adsorb some water through processing, requiring water to be added.
• The proposed processing flow sheet uses proven technology, currently used in many other processing plants.
• Dense media magnetite cyclones separate materials based on density. As coal is a low density material, it is freely separated from the higher density rock.
• Dewatering of the coarse coal occurs in centrifuges. These are like large salad spinners where water is spun out of the coal.
• Dewatering of the fine coal occurs in belt filter presses which are like cheese cloth.
• All clean coal is combined and stacked outside the plant by a conveyor.
• Coarse and Fine Washed Rock will be dewatered, combined, and stacked outside the plant by a conveyor.
Coal Processing
Vibrating Screen Flotation Cells Dense Media Cyclone Magnetite Separator Fine Coal Centrifuge
Heavy MediaVessel
Coarse CoalScreen
Rock CoalScreen
Coarse CoalCentifuges
Raw CoalClassifying
Cyclone
Screen
Fine RockThickener
BeltFilter Press
Raw CoalFeed System
Washed Coal
Washed RockDry Disposal
Raw Coal
Coarse Coal
Washed Coal
Washed Coal Dewatering
Washed Rock Dewatering
Belt Filter PressFeed Hopper
Gravity Section
PressureSection
ReceivingContainer
Drain
ThickenerFlotation
Underflow(Influent)
Overflow Screen
OverflowCollection
(Clean Water)
Thickener Bed
Thickener Rakes
Water toDesliming Screen
(Effluent)
To Belt Press Filter(ThickenerDischarge)
Inlet Well
– This coal does not require drying, reducing our energy use and emissions.
www.newelkcoal.comWe invite you to connect with us. T 859-338-0872 E [email protected] @newelkcoal @newelkcoal
Rock Screen
