1. Wear-resistant impeller profile design: The fan model is designed for wear resistance, high efficiency, and low noise. The blades are backward-curved, and the blade profile is optimized using gas-solid two-phase flow theory, making the impeller suitable for wear-resistant conditions from the outset.

 

2.Impeller anti-dust accumulation structure design: For conditions where dust easily adheres, a guide vane structure is used at the impeller inlet, effectively preventing dust accumulation on the back of the blades and improving localized impeller wear.

 

3. Wear-resistant structure design: The dual-inlet fan uses a toothed disc, causing dust particles to collide with each other during flow from the impeller interior to the outlet, reducing the impact energy of abrasive particles, minimizing wear on the impeller flow channel, and extending the impeller's service life.

 

The blade inlet design features a thickened blade tip, and wear-resistant protective plates are designed on the impeller disc to reduce wear and protect the disc's weld corners.

 

Depending on the operating conditions, a high-hardness wear-resistant layer is welded onto the working surface of the blades, ceramic sheets are bonded, or wear-resistant composite plates are used to achieve a surface hardness of HRC55 or higher, thereby extending the impeller's wear life. When using the welding process, the blades are intermittently welded using turbulence theory, generating eddies between the weld layers. This reduces the number of collisions between fixed particles and the blades, effectively increasing the impeller's service life.

 

4. Corrosion Resistance Protection

 

By adopting a reasonable corrosion-resistant impeller structure, the cavitation phenomenon of the medium on the blades is reduced, extending the service life.

 

Appropriate selection of corrosion-resistant steel and the use of processes such as rubber lining and spraying anti-corrosion materials meet user requirements.