Screw conveyor used to skim sludge from the base of a silo at a biomass plant was suffering from severe abrasion, with unprotected screws only lasting 3-4 months.
High abrasion was leading to unprotected screws only lasting 3-4 months in service. Previous Belzona applications on this type of screw were completed with Belzona 1812, which extended their life to over 2 years.
The screw conveyor was grit blasted to SA2 1/2 with a minimum surface profile of 3 mil (75 microns). The area to be coated was then cleaned and degreased using Belzona 9111. The new product, Belzona 1814 was applied to the entire area of the conveyor to provide long-term protection against heavy abrasion.
Belzona 1814’s high abrasion and wear resistance will not corrode and is solvent-free, allowing it to be easily applied in confined spaces with no hot work required. Its long working life and high mechanical strength ensured a protective coating to improve the longevity of the vital assets. After the success of previous applications of Belzona 1812, the client was eager to see the benefits of the new coating.
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