Conforma Clad^® Coal Riffles 

...significantly extend the life of coarse and fine cut coal riffles and reduce unplanned downtime!

Download PDF here (243KB) 

1. Superior Weight-to-Erosion Resistance Ratio
   It would take an inch of chrome carbide weld overlay or three inches of plain carbon steel to equal the erosion resistance provided by 1/16” (1.5 mm) of Conforma Clad^® cladding.
    

2. Balanced Combustion
   

   Extending the service life of fine cut riffles equips boiler engineers with a better tool to achieve balanced combustion within their boiler furnaces, along with reduced NOx emissions.
   

3. Protect the Entire Riffle
   Conforma Clad can protect the leading edges, working surfaces and sides.
   

4.  

   Proven Results
   Conforma Clad’s premium technology has been used in coal-fired power plants for more than 15 years, extending the life of burners, gas fans, boiler tubes, thermowells, ash conveyance equipment, pitot tubes, pulverizer components and other plant equipment.

      

Riffles are subjected to severe wear conditions as they have a constant, high velocity coal stream impinging and sliding on the riffle surfaces. Most often, the coal stream is concentrated in a “rope” to further contribute to the erosive effect of the coal flow. The purpose of the riffles is to more evenly distribute the fuel/air ratio to the individual coal pipes from each mill. Conforma Clad’s unique tungsten carbide cladding applied to fine cut riffles provides both maintenance and operations/ performance personnel the dual benefit of extended service life and improved combustion and boiler performance via improved fuel/air balance. This approach is extremely cost advantageous over less proven burner balancing methods and is an approach to consider for any such exhauster mill application where OFA (over fire air) and/or LNB (low NOx burner) retrofits are being considered.