In the use process of coal fired steam boiler,the boiler users face the problem of that what should we do during the shutdown.The shutdown can be divided into three types:pressure fire shutdown,normal shut down,and emergency shutdown.In this text,we will mainly discuss the pressure fire shutdown.
We can appropriately thicken the coal seam,stop the rotation of boiler grate,stop the running of drum induced draft fan,turn down the damper of ventilation door and gas pass under the grate moderately,maintaining the combustion through natural ventilation.
If the combustion chamber is no longer burning,we can add water to the inside of coal fired steam boiler for blowdown,after the blowdown,the water level can reach the highest level allowed,and wash the water level gauge.
Turn off the main gas pass,and open other related cooling channels.
It is hoped that this article will provide a better understanding of the proper operation of coal fired steam boiler shutdown.In case you need to know more,please do not hesitate to contact us!
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