Adelaide Brighton Community | Birkenhead

• Community
• Community Liaison Group
• Community Programs
• Community News
• Land
• Improvement Programs
  • Environmental Improvement Plan
  • The New Environmental Improvement Program (EIP)
  • Water Efficiency Team
  • Alternative Fuels and Raw Materials
  • Dust Reduction
  • Materials Management (MM) - Foam Suppression System
  • Materials Management (MM) - Stockpile Mesh Canopies
  • New Elder Road Truck Wash
  • Slag Raw Material Storage Bunker Completed
  • Traffic
  • Noise
  • Stack Silencer Refurbishment
  • Cement Mill 7 Project
  • Gantry Dust Collector
  • Stormwater Management
  • Wetlands Expansion
  • Vibration Study
  • Independent Stack Emissions Improvement Study
• Air
• Operating Licence

Stack Silencer Refurbishment

Our ongoing independent acoustic noise studies and surveys over an extended period have verified that noise emanating from the top of one of our major stacks (4A) was producing a dominant tone in the neighbourhood (noise actually comes from large fans at the bottom of the stack).

In discussion with our acoustic consultants our noise reduction team decided that the best option would be to modify an existing noise silencer/attenuator located midway in the stack.

The design of the silencer was subsequently assessed by the noise consultants for its suitability and any improvements that could be made to possibly eliminate the tone.

After significant planning and review the silencer was removed for assessment and refurbishment during a major shutdown in March last year.

The silencer underwent a complete overhaul and two subsequent periods of external noise testing has verified that the dominant stack tone has been completely eliminated.