KHIA headerKnow-How in Action

VOL XV, NO 23

Belzona® Restores Archimedes Screw

 
 

Industry:

Water / Wastewater (WATR)

 
 

Application:

Solids Handling Machinery (SHM)

 
 

Customer Location:

Wastewater treatment facility in a chemical plant, Florida U.S.A.

 
 

Application Date:

1998

 
 

Application Situation:

Archimedes screw

 
 

Problem:

Corrosion/erosion caused the screw blades to wear down. The diameter of the angle was reduced so much that it could not lift the water.

 
 

Products:

Belzona® 1321 (Ceramic S-Metal)

 

Substrate:

Steel and fiberglass

 
 

Application Method:

The application was carried out in accordance with a modified version of Belzona Know-How System Leaflet SHM-14.

 
 

Belzona Facts:

The screw blade edges were worn down and the protective fiberglass liner had delaminated. After welding blade extensions all the way around, Belzona® 1321 was used to reinforce existing fiberglass liner, protecting the entire new weld.

 
 

Photographs Description

  1. Damaged Archemides screw
  2. A close look of welded outskirts coated with Belzona® 1321
  3. Entire screw edges were coated with Belzona
  4. Completed application with cosmetic coating applied
 
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