The 20th biomass steam boiler for power plants

DETAILED PARAMETER OF THE LADDER GRATE(STEP GRATE) BIOMASS BOILER DESIGN PARAMETER Model: natural circulation, double drum, water tube steam boilerSHL20-2.5/400-T Rated evaporation capacity20t/h Rated steam temperature400ºC Rated steam pressure2.5Mpa Rated feed water temperature105ºC 

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DETAILED PARAMETER OF THE LADDER GRATE(STEP GRATE) BIOMASS BOILER
 
DESIGN PARAMETER
 Model: natural circulation, double drum, water tube steam boilerSHL20-2.5/400-T
 Rated evaporation capacity20t/h
 Rated steam temperature400ºC
 Rated steam pressure2.5Mpa
 Rated feed water temperature105ºC
 Cold air temperature20ºC
 Hot air temperature163 ºC
 Design efficiency81.8%
 Combustion typestep grate(ladder grate) firing
 
HEATING SURFACE AREA
 Radiation heating surface97.4 m2
 Convection heating surface345.6 m2 
 Economizer123.5 m2
     Air pre-heater608.5 m2 
 superheater121 m2 
 
FUEL PARAMETER
 fuelpalm firber, palm fruit branches,woodchips.
   Moisture <45%.
 Wood Size:<50X50X25mm3.
 Net calorific value: >2500Kcal/ Kg.
l      THE ABOVE PARAMETER IS ONLY FOR REFFERENCE
l      SUBJECT TO FINAL DESIGN
 
BIOMASS BOILER CHARACTERISTICS

- STEP GRATE and LADDER GRATE for efficient and complete combustion of biomass fuel.
- Fuels can be wood chips, wood wastes, straws, shells or husks,palm fiber, palm fruit branches, etc.
- Special design combustion chamber and heating surfaces for high efficiency heat exchange.
- Thermal efficiency shall be more than 81%.



THE FOLLOWING PICTURES SHOWS LADDER GRATE OF SUCCESSFUL PROJECTS IN INDONESIA SINCE 2010

20th Biomass Fired Steam Boiler for Power Plant





 
 




 

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