KHIA headerKnow-How in Action

VOL XXIV, NO 74

Cooling Tower Fan Blades Repaired With Belzona

 
 

Industry:

General Industry (GIND)

 
 

Application:

Fans, Blowers and Compressors (FBC)

 
 

Customer Location:

Fertilizer Producer, Indonesia

 
 

Application Date:

February 2010

 
 

Application Situation:

GRP fan blades from cooling tower

 
 

Problem:

Erosion on leading edges, cracks and flaking on trailing edges of cooling tower fan blades caused by UV degradation, erosion and impingement. This reduces the overall efficiency and operation of the cooling system.

 
 

Products:

Belzona® 1311 (Ceramic R Metal)

Belzona® 1321 (Ceramic S Metal)

Belzona® 5811 (Immersion Grade)

 

Substrate:

GRP

 
 

Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet FBC-1. The Leading edges and trailing edges were  rebuilt with Belzona® 1311 and subsequently coated with Belzona® 1321. Blade body was coated using Belzona® 5811.

 
 

Belzona Facts:

The Belzona refurbishment has avoided the high cost of blade replacement. Each cell contains six blades. The Belzona solution will provide the plant with long term protection of the blades.

 
 

Photographs Description

  1. Damage on leading edges
  2. Flaking on trailing edges
  3. Belzona application
  4. Completed blades after coating with Belzona® 1321 and Belzona® 5811
 
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