A set of superheater tubes is provided to superheat steam which enters these tubes from the steam space in the boiler shell. The superheated steam can be taken out to the steam stop valve, through the steam pipe. The lower part of the downtake header has a mud box attached to it to collect the sediments. The damper chain controls the quantity of air flowing through the boiler. Two soot doors are provided for internal cleaning of boiler.
Figure 3.5 Babcock and Wilcox boiler
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