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Submerged Scraper Conveyor (SSC)

Wet Bottom Ash Handling

The SSC is used for the continuous removal of furnace bottom ash and is particularly suited where headroom is limited. The system is capable of quenching and transporting over 100 t/h of ash and offers greater energy efficiency than hydraulic systems of comparable capacity. Typically, the dewatered bottom ash is deposited directly into a bunker outside the boiler wall for truck disposal with no further crushing.

A double roller crusher can be used to feeds the ash either to a slurry disposal system or onto belt conveyors for onward transfer.This technology can adopt single or twin hydraulic or electro-mechanical drives to suit the application or customer requirements.

Industry Applications:
  • Boilers typically ranging from 5 -1000 MWe
  • Pulverized coal-fired units
  • Waste-to-energy units
  • Retrofit for plant increased life cycle


  • Hydraulic drive system
  • Proprietary chain design for the arduous environment
  • Auto chain tensioning unit to maintain appropriate operating conditions
  • Wide range of silo storage & discharge options
  • Low water & power consumption
  • Low OPEX costs
  • Low maintenance costs
  • Operational flexibility