Wednesday, December 24, 2008

How to bank a boiler.

At the panel, make sure that the boiler is on panel control.
Close the coal cut off door and open the guillotine door to 200mm.
Rake most of the coal off the front of the stoker with a rake, now push the rest of the coal into and onto the live coals in the combustion chamber,making sure that the live coal and the unburnt coal is well mixed with the live coal on top of the unburnt coal,also making sure that the coal is pushed back from the guillotine door for approximately 450mm.
Now close the guillotine door until the indicator plate reads approximately 20mm, now seal the gap between the guillotine door and the stoker with fresh coal to prevent air getting into the combustion chamber.
At the I D damper control, open the damper until you have a reading of -3pa at the draft gauge/ photohelix making sure that the FD dampers are closed.
Fill the boiler with water to the high water mark, making sure that the mainsteam stop valve is closed.
Make sure that the feed pumps are on Auto and that the feedwater valve is open and that the feed water tank is full, this will prevent the boiler running short of water as the boiler cools down

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