Grate firing

Grate firing is a type of industrial combustion system used for solid fuels. It now is used mainly for burning waste and biomass, but also for smaller coal furnaces.

  • Capacities 0.3 to 175 MWth in industry and CHP
  • Fuel fired per grate area 1-2 MW/m2, maximum grate area 100 m2
  • Grates are typical only suitable for coarse particles, for fine particles a spreader is required, increases max. capacity
  • Primary air through the grate (also used for cooling) and secondary air
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