Taking the wet limestone/gypsum desulfuration system in Luohuang Power Plant as example

the causes leading to equipment corrosion

wear out

and scaling in the said system have been analysed

and two recommendations being put forward as follows: (1)It is necessary to avoid selecting tower with many inner parts (such as tower with filler grates) as possible

and to make effort for selecting a lequid column tower with inner empty

to decrease the possibility of scaling in the tower; at the same time

to pay attention for ensuring stable operation of the said desulfuration tower for retarding the velocity of scaling; (2)For positions and parts which are easily subjecting to corrosion and wear out in the desulfuration system

anti corrosion and wear resistant materials

or rubber lining method

should be used as fully as possible

so as to decrease the occurrence of corrosion and wearout problems.