Impeller wear and abrasive composition, particle size, concentration, shape, impact speed, impact angle, the chemical composition of the gas, nature, temperature and humidity and other factors. While the uneven flow of gas within the impeller speed up the wear and tear.
As measures to prevent impeller wear: First, reduce the dust and corrosive gases into the fan, this fan must have to run the system transformation; the second is to try to make local wear uniform wear and tear, which need to improve the wear resistance of the impeller . If you improve the wear resistance of the impeller can be used high hardness and good wear resistance of the material. This is not only difficult for the impeller manufacturing process, but also from an economic point of view is unreasonable. Therefore, it is an economical and reasonable solution to improve the surface quality of the impeller, wear-resisting layer on the serious parts of the impeller wear and spray a layer of liner on the blade in order to achieve wear resistance.