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Anti-erosion for CFB boiler

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Anti-erosion for CFB boiler

  • Categories:Technology
  • Time of issue:2021-08-27 15:39:05
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It is mainly aimed at the parts with severe errosion of the CFB boiler, such as the dense phase area above the castable refractory of the front wall and evaporator and transition area above castable for superheater. The use of overlay welding a anti-errosion alloy will works really well.Compared with the traditional thermal spraying, the overlay welding is not as easy to fall off and thin.

 

img Typical erosion for a CFB boiler
img In 2019, PW-350 wear-resistant alloy was overlaid on the water wall of CFB boiler in the US. Up to now, the service life  are good.
img
img Thermal spraying coating falling off (half a year later on the front wall of a CFB boiler)
img
img Weld overlay for a CFB boiler after 3 years
img

Pourin Special Welding Technology Co., Ltd.

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