KHIA headerKnow-How in Action

VOL XXVII, NO 49

Belzona® Restores Worn Archimedes Screw

 
 

Industry:

Water / Wastewater (WATR)

 
 

Application:

Solids Handling Machinery (SHM)

 
 

Customer Location:

Ohio, USA

 
 

Application Date:

April 2013

 
 

Application Situation:

Worn archimedes screw flights

 
 

Problem:

Erosion and corrosion caused the edges of the 58 inch long archimedes screw flights to be worn down, thus losing efficiency at Wastewater Treatment Plant. 

 
 

Products:

Belzona 1811 (Ceramic Carbide)

 

Substrate:

Steel

 
 

Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet SHM-14. The entire 58 inch long screw was blasted before applying Belzona 1811 to rebuild and reinforce the edges that were worn down. There is a large sections of the flights were missing, expanded metal was welded in place prior to applying the Belzona 1811.

 
 

Belzona Facts:

The customer stated that the Belzona repair material was much less costly than replacing the archimedes screw and importantly was completed in far less time than conventional repairs would have taken.  A similar application was completed in September of 2009 and was recently inspected. The screw was in the same condition as the day the application was completed more than 6 years ago.

 
 

Photographs Description

  1. Overview of 58 inch archimedes screw
  2. Worn flights on flatbed hauler 
  3. Archimedes screw blasted and prepared for application
  4. Belzona 1811 applied to the screw flights
 
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