KHIA headerKnow-How in Action

VOL XXVII, NO 6

Belzona® Restores Profile Of Ball Mill

 
 

Industry:

General Industry (GIND)

 
 

Application:

Solids Handling Machinery (SHM)

 
 

Customer Location:

Cement plant, Bulgaria

 
 

Application Date:

November, 2011

 
 

Application Situation:

Ball Mill for grinding limestone in cement production

 
 

Problem:

Severe wear particularly on the front wall and feed tube into the main shell.

 
 

Products:

Belzona® 4111 (Magma Quartz)

Belzona® 1812 (Ceramic Carbide FP)

Belzona® 1121 (Super XL-Metal)

 

Substrate:

Mild Steel

 
 

Application Method:

Application was carried out in accordance with modified version of the Belzona Know-How System Leaflet SHM-7. Belzona® 4111 was applied around connecting bolts on the front wall and the shell. Belzona® 1812 was used to restore profiles lost through severe erosion. Belzona® 1121 was used for smoothing the areas with small pitting and erosion damages. These applications were carried out before re-fitting the wear resistant tile lining.

 
 

Belzona Facts:

Based on the previously performed successful repair in 2008 to a similar ball mill shell  the customer required to use again Belzona products to restore the whole profile of the front wall and shell body before installation of the new protective tiles. The alternative conventional welding or metal sprey methods were rejected as being too expensive and incapable of providing the longevity required. Belzona solution was considered to be reliable and the optimum time and money saving approach.

 
 

Photographs Description

  1. View of severe abrasion damages were clearly evident after dismounting the tiles and blasting the surface 
  2. Application in progress 
  3. Completed application of the front wall 
  4. Additionally application of Belzona® 4111 system to restore the profile of the shell
 
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