Power plant desulfurization system concentric reducer chemical corrosion resistant wear resistant protective coatings:
Most of power plant desulfurization system concentric reducers are steel components,suffer from corrosion and abrasion dual function in the process of running,lead to shorten the service life greatly,the serious influence on the production run of enterprises.Many units make a layer of rubber lining on the concentric reducer to prolong the service life of the concentric reducers,but there will still be a lining damage,can not achieve the ideal effect.One power plant uses Xiangyang City Hundred Shield Coating Material Co.,Ltd recommended maintenance plan (BD406 corrosion resistant repair adhesives + BD706 wear resistant coating),greatly prolong the service life of the concentric reducers.
Repair technology:
At first,clean the pending-repair part,remove the surface residual rubber and rusting,make the pending-repair part reveal the fresh metal base material,clean and dry,to achieve the ideal maintenance effects.
According to the mass ratio 5:1,make the BD406 anti corrosive repairing agent mix uniformly,smear it on the concentric reducer of the pump case,according to the criss cross method,smear it for 2 times,the coatings had better be 0.2-0.5mm thickness.
After the BD406 corrosion resistant repair adhesive has not been cured,make the BD706 large particle wear resistant coatings mix uniformly according to the mass ratio 4:1,make it be coating on the surface of BD406 anti corrosion coatings layer by layer,every layer should be compacted.
After the BD706 large particles anti abrasion coating complete curing (for 24 hours at room temperature),then it can be put into using.After the coatings full curing,heat the coatings up to the temperature of 60-80 degree and keep this temperature for 2 hours,it can improve 30% comprehensive performance of repair adhesives.
You can also smear a layer of mixed-up BD406 anti corrosive repair agent on its surface as the topcoat after the BD706 abrasion resistant large particle coating initial curing.The service life of pump case concentric reducer after repairing will prolong 2-4 times more than original concentric reducer.
