BROOKFIELD, WI (NOVEMBER, 2000)…

   HEIL ENGINEERED SYSTEMS recently completed a new boiler bottom ash and fly ash handling system for Montenay Power Corp. at the Miami-Dade County Resource Recovery Facility.  The new system replaced a troublesome ash handling system that was prone to blockages, spillage, and unscheduled downtime.  All four boilers burn 100% RDF, which is produced by one of two fuel preparation systems, provided by Heil in 1990 and 1997. 

   The new system included the following:

• Submerged drag conveyors to handle the boiler siftings on all four boilers.
  
• Screw conveyors to handle the boiler fly ash on all four boilers.
  
• Vibratory conveyors on each boiler to handle the combined bottom ash, siftings, and fly ash.
  
• Common belt conveyors to transport the collected ash to a loadout building.
  
• A new ash processing building which contained a magnetic separator and eddy current separator to automatically remove residual ferrous and non-ferrous from the ash.
  
• A ferrous and non-ferrous loadout bunker with transport conveyors.
  
• System electrical controls including motor starters, touch screen interface, and tie in to boiler DCS system.
  

Ash processing building and ferrous and non-ferrous loadout conveyors.  Ferrous and non-ferrous separators are located inside the building.

     Heil was responsible for all aspects of the project including system design, equipment supply, installation,  wiring, testing, and training.  The installation portion of the project was carefully coordinated by Heil to ensure that no boiler was out of service for more than a 14 day period.

    The work was completed in October, 2000. Heil met all performance guarantees for the new system which included throughput rate, amount of spillage, and a maximum of 20 minutes' stoppage per day.

    Heil Engineered Systems is a leading supplier of solid waste processing, materials recovery, compost preparation, fuel preparation, and fuel delivery systems to private firms and municipalities throughout the country.

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Ferrous and non-ferrous loadout bunkers containing recovered ferrous and non-ferrous.