List the methods for scale and sludge removal.

List the methods for scale and sludge removal.
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1 Answer

Answer :

Methods of scale and sludge removal:

With the help of scrapper, knife ,blades or piece of wood or by wire brushing, if the scale is loosely adhering.

By giving thermal shocks.

By heating the boiler and then suddenly cooling with cold water.

By dissolving them in some chemicals.

By frequent blow-down operation.
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