How To Prevent Wear Of Impeller Of Explosion-proof Axial Fan

When we use explosion proof axial flow machine, the impeler will wear after a period of use, so howto prevent the impeler from wearing? According to the diferentwear mode, anti-wear measures can be divided into the following categories:
I. Blade surface of explosion-proof axial fan
The surface of the blade can be treated by carburizing. plasma surfacing,spraying carbide and pasting ceramic plate. One advantage of these methods is to increasethe hardness of the blade surface, thereby mproving the wear resistance of the blade to a certain extent, but each method has its own disadvantages. Carburizingprocessis difcult, When carburizing. the position and thickness of the carburizing layer should be determined by the blade thickness and wearand carburizing procesThe blade deformation is large during surfacing welding, and repeated welding willead to cracks on the blade surface and accidents Itis diffcult to determine thethickness of the coating during the spraying process; Ceramic tiles work better, but the price is high.
2. Spray wear-resistant coating on the outer surface of explosion-proof axial flow blowerThis method is simple to operate and low cost, but the coating wears quickly and can be used for about 3-5 months at a time.3. Improve the structure of explosion-proof axial fan
There are several methods, such as machining the blade face into a zigzag shape, changing the hollow blade to a solid blad, welding anti wear block on the blade, etc.
can reduce the wear of the impeller to a certain extent.
4. Front anti-wear steps
After the ant wear grating  nstald in the easly worn art, the partidles can be prevented from flowing to the back disk and blade root, the concenitrated wear of theparticles is transformed into uniform wea, the wear resistance of the impeller is improved, and the service life of the fan is prolonged.
5. Improve the aerodynamic planning of explosion-proof axial fan
Reasonable selection of the shape of the fan inlet to ensure the relative speed of the impeler at the smlinle, as far as possbleto reduce the number of fan rotation.choose the appropriate shape of the impeler runner, o that the blade ffom the inletto the outlet of the radian curature radius gradualy increased to reduce the
chance of solid particles and blades collision.