Anti-Wear Measures for Explosion-Proof Centrifugal Fans

Explosion-proof centrifugal fans typically experience blade wear during operation. How can wear resistance be enhanced? The following anti-wear methods are available:

Blade surface treatment: carburizing, plasma bonding, hard alloy spraying, ceramic coating.

These methods increase blade surface hardness to a certain degree, thereby improving wear resistance. However, various treatment processes present certain difficulties, and factors like high operational complexity or cost reduce the feasibility of processing blades. Wear-resistant coating spraying on external surfaces: This method is easy to implement and low-cost, but the coating wears down, typically starting from the surface within 3-5 months.

Improved blade structure: The blade design of explosion-proof centrifugal fans can be modified to reduce wear. The working surface can be machined into a serrated profile, and hollow blades can be converted to solid blades—specifically, blades can be welded to prevent grinding block formation. Pulsation prevention: After wear occurs, preventing particles from migrating from the rear tray and blade roots converts localized particle-induced wear into uniform wear. This enhances the impeller's wear resistance and extends the fan's service life.

Utilizing explosion-proof centrifugal fan equipment: Dust at the operational center is also expelled through perforated turbine blades. We advocate employing explosion-proof centrifugal fan equipment to purify the working environment and reduce wear on explosion-proof centrifugal fans. Severe blade wear not only impairs operational efficiency but may also pose safety hazards. In such cases, prompt replacement with new blades is essential.