WtE Plant

Italy

SPGr enables complete operating period without load reduction

Boiler Data and information about SPGs

  • Boiler design: 3 identical lines, each with three radiation passes and one horizontal convective pass
  • Live steam production per line: 86 t/h
  • Boiler width: radiation passes 8.6 m, horizontal pass 6.2 m
  • Type: Waste-to-Energy
  • three SPGr16 in operation: line 1 since 07/2021, line 2&3 since 12/2021
  • Shock Pulses: approx. 36 per day, in Mixed Mode Operation

Customer benefits

Very good cleaning result by combined operation of Rapping System and SPGr16:

  • Frequency of rapping system was decreased, to reduce mechanical stress at the collectors
  • Significantly reduced number of  intermediate manual explosive cleanings
  • 1.5 years boiler operation period can be achieved, without necessity to reduce the load prior to the shutdown
  • More stable boiler operation conditions

Line 3, comparison of six months periods prior to shutdown, without and with SPGr16 operation

Improvements with SPGr16 operation (at all 3 lines):

  • higher, more stable live steam production
  • lower flue gas pressure drop over full operation period
  • no additional manual explosive cleanings required for superheaters

SPGr enables 13.5 months operating period without load reduction (Example Line 2)

Improvements with SPGr16 operation (at all 3 lines):

  • higher, more stable live steam production
  • lower flue gas pressure drop over full operation period
  • no additional manual explosive cleanings required for superheaters (02/2024: manual explosive cleaning at radiation pass; could be optimized by an additional SPGr)
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