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Hot Air Impeller

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Hot Air Impeller

Industry:

Mining & Mineral Processing Industry,

 

Date:

April 2010,

 

Substrate: 

Fabricated carbon steel fan,

 

Products:

Epo-chem™ RS 500P,

Ceram-chem™ RU 500,

 

Challenge:

During the extraction of hot air fumes, the hot air impeller came under attack from atmospheric moisture and abrasion due to crystalline quartz dust in the air. This proved costly as it resulted in unplanned shut-downs and reduced efficiency. Chemco was asked to supply a coating that would extend the life of the hot air impeller and reduce premature failures caused by abrasion and corrosion attack.

 

Pre balanced coated hot air impeller RU 500
Pre balanced coated hot air impeller RU 500
Low friction finish for hot air impeller
Low friction finish for hot air impeller
Completed, coated & balanced hot air impeller using RS 500P & RU 500
Completed, coated & balanced hot air impeller using RS 500P & RU 500

 

Chemco’s Solution:

Chemco Australia recommended a coating system suitable for corrosive and abrasive environments and with the ability to resist high temperatures. The low friction finish reduced foreign body build up and increased efficiency, reducing unplanned shutdowns

 

Scope:                         

  • Pre-balance, grind welds, sharp edges & remove weld spatter,
  • Abrasive Blast to class 2.5, minimum 50pm profile,
  • Apply RS 500P in 1 coat,
  • Apply RU 500 in 2 coats to a DFT of 400µm – 500µm,
  • Post balance to clients required tolerance,

 

Results:

The hot air impeller has been operating with increased efficiency and without operational issues, the client is now looking at a program to line a further 19 fans based on this success using the RS 500P and RU 500 coating systems.