Most cement plants meet their heat and power needs by waste heat recovery boilers, yet ineffective removal of ash deposits from boiler tubes have in many occasions lead to boiler in-efficiency, capacity reductions, tube overheating failures and unscheduled shut downs. For a cement kiln waste heat boiler, soot cleaning is very important and we can take several measures to do the ash cleaning.
Sonic soot blowing is cleaning of fouled surfaces by compressed air operated sonic soot blowers. Sound waves sent inside the waste heat boiler propagate in all directions and impart energy to ash particulates which fluidize and jump up from fouled surfaces to be carried away by the flue gas stream. Cleaning is effective even deep into tube bundles leaving no dead corners unclean.
Steam Soot-blowing for waste heat boiler
It uses high-pressure steam as the working medium, through the soot blowing pipe and soot blower the high pressure steam purges the heat transfer surface in the form of injection. This measure is to use the impact energy of the high pressure steam for ash cleaning.
Mechanical vibration ash cleaning for waste heat boiler
The mechanical vibration ash cleaning of cement kiln waste heat boiler is a relatively safe and effective cleaning method, and relatively easy to implement. But there is only limited rapping cleaning machinery percussion, a single mode of action, the effect is limited. Ash deposits are detached from the wall in the stress of repeated vibration.
Cleaning boiler tubes regularly will lower costs by reducing fuel consumption, increasing output and minimizing detrimental wear and tear that can shave years off heating system life.
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