Product Name: 20th Biomass Fired Steam Boiler for Power Plant Model NO.: SHL20-2.5/400-T Usage: Industrial, Power Station Burning Style: Chamber Combustion Boiler Manufacturing Level: A Pressure: Medium Pressure Drum Placement: Horizontal Boiler Water Circulation: Natural Circulation Media: Steam Structure: Water Tube Installation: Bulk Boiler Fuel: Palm Fiber, Palm Fruit Branch,Wood Chip Function: Steam Boilers, Biomass Boiler for Power Plant Packing:as Required or by Standard: Standard:GB/Ce/SGS/ASME Origin:China: HS Code:8402120090 Trademark: hua yuan Transport Package: Exported Stanard, or According to Requirements Specification: A level boiler Origin: Origin: China HS Code: 8402190000 Product Description DETAILED PARAMETER OF THE LADDER GRATE(STEP GRATE) BIOMASS BOILERDESIGN PARAMETERModel: natural circulation, double drum, water tube steam boilerSHL20-2.5/400-TRated evaporation capacity20t/hRated steam temperature400ºCRated steam pressure2.5MpaRated feed water temperature105ºCCold air temperature20ºCHot air temperature163 ºCDesign efficiency81.8%Combustion typestep grate(ladder grate) firing HEATING SURFACE AREARadiation heating surface97.4 m2Convection heating surface345.6 m2Economizer123.5 m2 Air pre-heater608.5 m2superheater121 m2FUEL PARAMETERfuelpalm firber, palm fruit branches,woodchips. Moisture<45%.Wood Size:<50x50X25mm3.Net calorific value:>2500Kcal/ Kg.l THE ABOVE PARAMETER IS onLY FOR REFFERENCEl SUBJECT TO FINAL DESIGNBIOMASS 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