The SHOCKSystem™ successfully removed ash accumulation and arrested growth of ash outside of birdcage.
 
SHOCK STORY: ECONOMIZER ASH PILE REMOVAL BY SINGLE COMBUSTOR
Current Situation:
1300+ MW
  • Positive Pressure
  • Blended PRB coal
  • Three level economizer
  • Partial steam-sootblower coverage
  • Extreme economizer pluggage causes increased draft and reduced availability for generating electricity, which results in increased outage costs and frequency
Solution:
  • Install SHOCKSystem™ between the 2nd and 3rd economizer rows and between birdcage and stringers
System Design:
  • One single SHOCKSystem™ was installed, followed by five additional units after initial demonstration
Performance:
  • Removed ash accumulation outside of birdcage
  • Arrested growth of ash outside of birdcage
SHOCKSystem's™ Bottom-Line Impact:
  • Allows boiler to operate during cleaning process
  • Eliminates need to purchase power for resale by eliminating offline cleaning
  • Eliminates additional boiler cleaning labor costs
  • Increases efficiency thus lowering coal usage for the same load
 
Results: Removed Ash in Boiler Region
Five-Picture Time-Elapsed Series of Ash Removal in Boiler Region
1) Ash accumulation inside boiler region prior SHOCKSystem™ cleaning  2) After a few shots with the SHOCKSystem™, the top of first ash pile has been knocked down  3) With the first ash pile removed, the SHOCKSystem™ begins to dismantle the second pile  4) Only traces of the second pile remain after additional shots with the SHOCKSystem™  5) More shocks have reduced the second pile to mere rubble.
 
 
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