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Rake Sootblower

Rake Sootblower

The Rake Sootblower is designed for the cleaning of economizers, finned heating surfaces or rotating basket type air heater as well as SCR systems at flue gas temperatures < 500°C.

The Rake sootblower offers the following designs to meet specific cleaning requirements for this range of application.

It uses a specially engineered, non-rotating lance to maximize cleaning effect by directing the blowing medium optimally on the air-preheater basket surface. This results in an increase of the local flue gas velocity, enabling effective re-entrainment of solid particulate as well as reduced pressure loss across those surfaces.

Principle of cleaning
  • The blowing rake is equipped with high performance nozzles – blowing element remains in the flue gas path
  • During the blowing process the blowing rake continues to move axially into the flue gas path
  • On reaching the front-side end position the direction of movement changes and the blowing rake returns to its rest position
Travel range
Features
  • Integrated stop valve with adjustable throttle disc for comfortable adjustment of the blowing pressure
  • High-performance nozzles
  • Travel monitoring by limit switch
  • Integrated gear motor for advance movement
  • RS type with double-rack drive design for minimum stress and high stability
Benefits
  • Extended boiler availability and increased boiler efficiency
  • Controllable deposit build-up regardless of flexible boiler operation and changing fuel mixture or varying fuel quality
  • Prevents fouling in the superheater and blockages in the air heater and economisers
  • Maximises thermal efficiency and reduces gas exit temperatures
  • Maintains balanced heat transfer in the boiler as close as possible to design parameters
  • Clyde Bergemann sootblowers are reliable and simple to maintain
  • The Clyde Bergemann design optimises cleaning effect and minimises consumption of steam, water and air