the coal washing plant slurry pump abrasion corrosion protection:
One of Taian coal washery slurry pump impeller diameter is 750cm,outlet diameter is 250mm,the weight of guard jacket is 0.5 ton,the guard jacket is wearing perforated.
The condition before repairing: almost scrapping.
Material selection: BD7042 anti chemical wear resistant slurry pump repairing epoxy compound coating, BD426T special undercoat.
Construction tools:angle grinder,wire brush,grinding wheel,plaster knife,plastic knife,rubber hammer,special rounding tools,hair brush,electronic scale,iodine-tungsten lamp.
Auxiliary materials: cleaning agent,duster cloth,gloves.
Construction technology of BD7042 slurry pump protection anti abrasion chemical resistant ceramic epoxy coatings:
1.Clean up and polish the pending-repair workpiece on the needing-repair part.
2.Configure BD426T special undercoat and brush coating on the pending-repair part,then wait for the primer curing.
3.Configure BD7042 anti chemical wear resistant slurry pump protective epoxy coating and make it be coating on the pending-repair part,knock on it to be compacted with rubber hammer,then trim the surface with special rounding tools,make the surface be flat and smooth.
4.After initial curing at room temperature,heat it up to the temperature of 100 degree slowly and keep this temperature for 2 hours,cool it down slowly.
5.Coating on the topcoat