KHIA headerKnow-How in Action

VOL XXXIII, NO 22

Belzona® Applies A Protective System On A Grit Snail

 
 

Industry:

Water / Wastewater (WATR)

 
 

Application:

 
 

Customer Location:

Oregon, USA

 
 

Application Date:

January, 2018

 
 

Application Situation:

The grit removal system, called a Grit Snail, in a waste water treatment plant malfunctioned. The timer had quit working causing the Grit Snail to run constantly causing the factory installed sacrificial coating to wear prematurely through the coating in to the stainless steel housing.

 
 

Problem:

Grit running through the grit removal system wears through the protective coating and the stainless steel housing.

 
 

Products:

Belzona 1811 (Ceramic Carbide)

 

Substrate:

Stainless steel

 
 

Application Method:

The stainless steel and remaining Belzona 1811 are grit blasted. The 1811 is mixed and applied 1/4" thick on the edges and slightly thicker in the canter.

 
 

Belzona Facts:

The Grit Snail manufacturer applied a 6" wide band of 1811 in the wear area of the grit bowl. It is a sacrificial coating and must be renewed from time to time. Replacement bowls are quite expensive, thus having a protective coating that extends the service life of the equipment is ideal

 
 

Photographs Description

1. Grit Snail

2. Worn area inside grit bowl.

3. & 4. Belzona 1811 (Ceramic Carbide) replaced.

 
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