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