Optimised fuel- and bed material system for biomass and waste fuels

• Dosing screw for fuels with equalisation
• Pneumatical fuel feeding
• Open nozzle floor
• Screening and precipitation of big ash parts by the bed ash system

Optimised air and flue gas system

• Controlled composition for fluidising gas consisting of air and recirculation gas
• Two different levels for secondary air
• Controlled profile of combustion chamber temperature
  

Dosing system with equalizer and injector

• Dosing system for fuels up to 300 mm feed size
• Precise and equal dosage
• Pneumatical fuel feeding
• Burn-back protection by temperature control, negative pressure and volume flow of transport air
• Burn-back valve is open by normal operation
• Additional burn-back protection by water sprinkling

Open nozzle floor

• Open nozzle floor suitable for discharge of big particles up to 300 mm
• Low pressure drop
• Optimised equalisation of primary air

Pendular discharge

• Mechanical bed material discharge
• Continuously recirculation of bed material to combustion chamber
• Pneumatical screening