KHIA headerKnow-How in Action

VOL XXVIII, NO 193

Belzona® Rebuilds Paper Mill Cyclone

 
 

Industry:

Pulp & Paper (PLPR)

 
 

Application:

Tanks and Chemical Containment Areas (TCC)

 
 

Customer Location:

Tacoma, WA, USA

 
 

Application Date:

August 2013

 
 

Application Situation:

Internal lining repair of a cyclone that feeds a hog fuel boiler.

 
 

Problem:

Erosion had progressed over the years to a point of significant material loss and holes emerging as hog fuel is metered through the cyclone.

 
 

Products:

Belzona 1311 (Ceramic R-Metal)

Belzona 1321 (Ceramic S-Metal)

 

Substrate:

Carbon steel

 
 

Application Method:

As usual, downtime was restricted and we had not been able to see interior surfaces prior to shutdown. Considerable pack rust was encountered, which required needle gunning prior to abrasive blasting. Belzona 1311 & 1321 were hand applied, as confined space offered no room for spray equipment use. Belzona 1311 was used to fill the voids and pits before a coat of Belzona 1321 was applied.

 
 

Belzona Facts:

The client had an awareness of Belzona's quality materials and confidence to choose repairs over replacement of equipment, which would have been considerably more costly in both time and money.    

 
 

Photographs Description

  1. Cyclone with lost material piled up around its base
  2. Welded patches can be seen from outside
  3. Pack rust and scale in the interior of the cyclone seen from below
  4. Belzona 1311 applied as fillers and 1st coat of Belzona 1321 is 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