Our Boilers are having P.A Fans which will carry pulverised coal from the mill to the furnace. Our P.A fans take air from outside the sec air fan O/L and RAPH. Presure before P.A fan = 70--80 mmwc, P.A Fan O/L pressure = 700mmwc.
We are facing problems of severe dust leakage from PA ducts, ex
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