Fan Blade Life Increased by 300%

NanoSteel Thermal Spray Coating and Overlay wear plate drastically reduce surface material loss

Problem: Abrasion, Erosion, and Corrosion

Industrial centrifugal blowers in cement plants ventilate hot gases (≤ 500° C) rich with fine particle dust expelled from high temperature environments inside preheat towers, clinker ovens and clinker coolers.

At a cement plant in South America, blower fan blades mounted inside a pair of discs are fabricated from unprotected Q&T steel and not sufficiently resistant to the combination of abrasion, fine particle erosion and corrosion that they are exposed to during service. Material loss from wear and corrosion is severe, requiring replacement after only 2-4 months of service.

 

    Solution: NanoSteel Coating and Overlay Wear Plate

    NanoSteel wear plate, 0.236 in (6 mm) overlay thickness, for resisting severe abrasion is installed on fan blade and disc surfaces exposed to greatest wear. A NanoSteel thermal spray coating, 0.039 in (1 mm) thickness, for resisting fine particle erosion and corrosion is applied to the overlay wear plate and remaining fan blade and disc surfaces.

     

      Result: NanoSteel Extends Service Life by 300%

      After only 2-4 months of service, unprotected steel fan blades are worn through and must be replaced. However, fan blade and disc surfaces protected with NanoSteel overlay wear plate and a thermal spray coating show minimal wear after 12 months.

      Hot Gas Distribution Inside Blower

      Distribution of hot gases (≤ 500° C) inside industrial centrifugal blower

      Hot Gas Distrubution Inside Industrial Blower

      Unprotected Fan Blade

      Unprotected fan blades are worn and must be replaced after 2-4 months of service

      Unprotected Fan Blade Wear

      NanoSteel Protected Fan Blade

      NanoSteel wear plate and coating on fan blade surface after 12 months of service

      NanoSteel Protected Fan Blade
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