KHIA headerKnow-How in Action

VOL XXXII, NO 13

Belzona® Protects Internal Of Chp Stack

 
 

Industry:

Pulp & Paper (PLPR)

 
 

Application:

Tanks and Chemical Containment Areas (TCC)

 
 

Customer Location:

Papermill, Scotland, UK

 
 

Application Date:

May 2016

 
 

Application Situation:

The stack of the plants CHP (Combined Heat & Power) unit

 
 

Problem:

The stack had been experiencing corrosion issues from the chemicals within the flue gas stream. It was suspected that acids within this stream were condensing on the vertical wall of the stack & causing excessive corrosion around the localized area.Repairs had been attempted in the past by welding mild steel plates to the internals of the stack during shutdowns. This did not solve the problem & the base issue kept occurring year after year.

 
 

Products:

Belzona 1593

 

Substrate:

Mild Steel

 
 

Application Method:

Application was carried out in accordance with Belzona System Leaflet TCC-5. After grit blasting the surface a paste grade Belzona was used to smooth out pitting before applying a two coat system of Belzona 1593.

 
 

Belzona Facts:

The Belzona solution solved the problem & kept the metal loss from reoccurring. All the work was carried out during a short shutdown.

 
 

Photographs Description

1. CHP Stack

2. Plates welded in place during previous attempted repairs

3. Base of the stack coated

4. completed Belzona 1593 coating

 
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