Fan and Blower Impeller Wear-Resistant Coating for Dust-Laden Air

Application fields:

Induced and forced draft fans in boilers and kilns, cement and lime dust handling, biomass and waste-to-energy plants, steel plant dust extraction, and chemical process blowers.

Technical principles and processes:

Blades and the inlet cone are grit blasted and, where erosion has thinned the profile, rebuilt before coating. A tungsten carbide or alumina-titania ceramic layer is applied by HVOF or atmospheric plasma spray depending on the gas temperature and dust chemistry. The impeller is then balanced to the original grade.

Coating performance:

Erosion resistance improved 3-6 times over mild steel blades
Coating thickness 0.15-0.40 mm on blade faces and leading edges
Withstands continuous service up to roughly 540 degrees C with ceramic
Impeller balanced after coating to control vibration
Extended intervals between blade replacement and rebalancing

风机叶轮耐磨涂层加工：针对含尘、腐蚀性烟气工况，对叶片与进气锥做碳化钨或陶瓷涂层，减缓冲刷磨损，延长风机检修周期。

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