This picture shows the lifting of wind box duct before erection of pressure parts . Please
note this is only for super critical boiler and not required for any sub critical boiler up to
500 MW. It has been told that if we do not erect this duct now it will be extremely difficult
to erect the same after pressure part erections and that is true. I thought it is better to mention
the same here.
Burner panel in view . The same is generally erected after erection of vertical /spiral wall up to Burner
panel top. However like all sub critical boiler it is seen that one or two burner panel are getting delayed
due to various reasons . Here also all the burner panel was delayed and we can not wait further because
we have close the furnace . The wait of single burner panel is around 50 T . Now it has to be erected
on temporary supports and burner panel needs to be shifted horizontally to the position . The same
was done afterwards . However it is preferred to have Burner panel in time for erection. The reason for
delay has been explained in the next photograph.
We are doing super critical boiler first time and the kind pressure parts arrangements to be done
around burner is enormous. This job involves huge pipe bending etc to make it a panel. Final
connection will be loose tube with walls. We are told Burner panel was delayed in manufacturing .
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