Summary of publication

Agenda:

• Fundamentals concerning Fouling /Slagging Behaviour
• Sensor Based Cleaning in the Furnace
• Selective Cleaning for Superheater
• Summary and Outlook

Increase of furnace exit gas temperature (FEGT)

• Slagging at the first superheater
• Increase of attemporator spraying rate
• Change in fouling for the convective zone
• Increase of boiler Off gas temperature (BOGT)

Potential boiler damages
Efficiency losses

• Water Cannon Technology:
• Leading and experienced technology
• Minimum tube wall material thermal effect
• One WLB substitutes approx. 15 conventional wall deslagger
• 100% coverage of cleaning area
• Flexible cleaning pattern (individually adjustable acc. to each boiler)
• Cleaning in difficult accessible areas like hopper, middle wall, bull nose etc.
• Scientific approved application Know-How from more than 1080 installations worldwide

Increase of performace!
Efficiency increase due to 40% larger cleaning area

• The new and advanced solution for selctive cleaning in the furnace area

- Various contamination in the different areas
                    |
  WHERE, WHEN, and HOW
  should the cleaning be done?
                    |
               FACOS^TM

  Furnace - Analysing - Cleaning - Optimisation - System

• SMART FLUX^TM Sensor
  The diagnostic software determines the "Turning Point"
  
  
• SMART GAUGE^TM
  The measuring system for detailed analysis slagging in superheater surface
  

Summary
- Intelligent Sootblowing -

• Water Cannons are the flexible tool for high performance cleaning -
  especially for coal fired boilers facing a broad variation of coal quality
  
• Sensor based FACOS^TM -System ensures selelective cleaning on demand

Results:

• Significant increase of operating safety
• Reduction of furnace exit gas temperature by 75 K
• Significant increase of boiler efficiency up to 1,2%
• Ruduction of NOx emissions up to 6%