KHIA headerKnow-How in Action

VOL XXXI, NO 80, ELITE

Belzona® Protects Coal Dryer Fan

 
 

Industry:

Mining and Quarrying (MINQ)

 
 

Application:

Fans, Blowers and Compressors (FBC)

 
 

Customer Location:

BC, Canada

 
 

Application Date:

June 2008

 
 

Application Situation:

Eroded fan blades

 
 

Problem:

The fan blades were being eroded by the hot coal and water mixture under operating temperatures of 110°C.

 
 

Products:

Belzona 1311 (Ceramic R-Metal)

Belzona 1391 (Ceramic HT)

 

Substrate:

Steel plate

 
 

Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet FBC-1.

 
 

Belzona Facts:

Belzona materials allowed the application to be completed with the minimum amount of downtime; only in one shift. Belzona also provided a sacrificial coating that would ensure the blades would not deteriorate to a point where total replacement became necessary. The balance of the unit was maintained by applying an equal amount of Belzona products per blade. An additional benefit from the application was that power required to run the fan was dramatically reduced (Estimated at ± 15%).

 
 

Photographs Description

  1. View of the wear pattern exhibited by the fan blades.
  2. Preparation of the metal surfaces in progress via grit blasting.
  3. Completed application. Eroded areas were rebuilt with Belzona 1311 and coated with Belzona 1391.
  4. Condition of fan baldes after 12 months in service.
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com