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Figure 5.12. Tools (scrapper and a brush) for cleaning the ash from the boiler’s
heat exchanging surfaces;
EXPLANATION:
•
The regular cleaning of the ash, deposited on the heat exchanging surfaces
of the boiler allow achieving high reliability and efficient operation of the
boiler, as well as high durability of the heat exchanger;
•
Another criteria for efficient combustion process and optimal operation of
the boiler, is the color of the ash as well as the presence of any char
particles in the ash material – the amount of these particles should be
small, compared to the total ash mass;
•
The cleaning of the ash in the combustion chamber could be performed at
operation mode of the boiler, but should be done in exceptional cases – the
boiler should be cooled down (but still operating) and special measures for
self protection should be taken in order to prevent any skin injuries. It
should be considered, that hot flue gases will be emitted in the boiler’s
room and thus suffocation could influence the person, who is making the
above mentioned process – take care to make intensive ventilation of the
boiler’s room. In case that such ash cleaning is a must-process, then the
ignition flap should be opened, the door of the combustion chamber should
opened and the ash should be scrapped and collected in a special
container, which is equipped with appropriate lid – take care not to get
burned by the hot particles. After the ash has been cleaned, close the door
of the combustion chamber, then close the ignition flap. Take the ash
container away and leave it to get cooled down to ambient temperature
levels, then empty the ash in appropriate containers or use it as fertilizer
for example;
