Fan Blade Life Increased by 300%
NanoSteel Thermal Spray Coating and Overlay wear plate drastically reduce surface material loss
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.
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.
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
Unprotected Fan Blade
Unprotected fan blades are worn and must be replaced after 2-4 months of service
NanoSteel Protected Fan Blade
NanoSteel wear plate and coating on fan blade surface after 12 months of service