ash handling systen in a power plant

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    Fly Ash Handling System

    in a powerplant (500MW)

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    Content

    Classification of AshBottom Ash

    Fly Ash

    Wet System Dry System

    Vacuum Pump

    TACAsh Silo

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    April 27, 2012 3

    WHAT IS ASH?

    Ash is the residue remaining after the coal has been

    incinerated to constant weight under standardconditions.Ash is oxidised form of the mineral matters

    present in coal.Typical ash composition : SiO2, Al2O3, Fe2O3,

    CaO, MgO etc.

    Coal with more SiO2 & Al2O3, Ash MP > 1400C

    Coal with more Fe2O3, CaO & MgO, Ash MP