In thermal power plant boiler systems, flue gas recirculation fans are core auxiliary equipment for ensuring balanced furnace temperature fields, improving combustion efficiency, and achieving stable environmental compliance. These fans chronically face extreme operating conditions of "high-temperature flue gas, high-concentration hard particles, high-speed scouring, and strong centrifugal vibration." Impeller blades are highly susceptible to erosion wear, localized thinning, cracking, and peeling, which not only significantly shorten equipment life but also trigger excessive vibration, frequent maintenance, and unplanned outages, directly impacting safe continuous unit operation and power generation benefits.
he wear of flue gas recirculation fans is not ordinary surface loss, but composite wear caused by long-term strong impact and cutting from high-temperature, high-speed, large-particle materials. Conventional anti-wear methods such as hardfacing and ordinary tile bonding are highly prone to detachment, cracking, and localized failure under high-temperature thermal expansion, centrifugal throwing, and strong particle scouring. They often show short-term effects but require repeated repairs over the long term, making them unable to truly adapt to the harsh working conditions at thermal power sites. To address this industry pain point, Beijing Titan-Shield Technology provides thermal power plants with a durable and reliable overall impeller anti-wear solution featuring "customized dovetail wear-resistant ceramics + proprietary inlay reinforcement process."
The anti-wear layer under this process combines three core advantages: high hardness and wear resistance, high-temperature deformation resistance, and high bonding strength. It can withstand long-term high-temperature flue gas scouring and hard particle cutting, with wear resistance far exceeding original metal blades and ordinary anti-wear treatments. After ceramic anti-wear retrofit, the erosion resistance life of impeller blades can be increased several times, greatly reducing blade thinning, perforation, and replacement frequency, truly achieving "one-time application, long-term benefit."
Relying on a mature construction system and rigorous quality control, we have in recent years provided impeller blade ceramic anti-wear services for flue gas recirculation fans of multiple coal-fired units under Datang, China Energy, Huadian, and other major power groups, covering projects with different boiler types and different flue gas conditions, and accumulating rich on-site practical experience. Verified through long-term customer operation: after retrofit, fan vibration remains stable, blade wear rates significantly decrease, and maintenance cycles are greatly extended, effectively reducing shutdown maintenance duration, spare parts replacement costs, and labor input. This helps power plants reduce costs, improve efficiency, and ensure continuous stable unit operation, earning high recognition from multiple operation and maintenance organizations.
Titan-Shield has long been deeply engaged in the specialized field of thermal power fan wear protection. We do not provide generalized construction, but rather specialized anti-wear services "tailored to the extreme operating conditions of flue gas recirculation fans." From operating condition surveys, customized solution design, on-site construction, to after-sales follow-up visits, we provide one-stop professional implementation services throughout the entire process. With mature processes, reliable materials, and a proven track record, we safeguard the long-term stable operation of core fan equipment in thermal power plants.