DZL Biomass Steam Boiler

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Sitong DZL(H) series solid biomass fuel boiler is energy saving and compact structure, the pressure raise up quickly. This series boiler is single drum horizontal type shell boiler, the combustion equipment is chain grate/moving grate (small scale flaker is available), has the advantages of feed mechanically and strong adaptability of different fuels. The fuel could be wood chips, rice hull, bagasse, straw, peanut shell, mustard stalk, cotton stalk, coconut shell, and waste cloth, etc. Biomass particle diameter should be 6-10 mm, length should be 25-50mm, and water content should be less than 15%. The source of solid biomass fired boiler fuel is widespread, it is renewable green energy with the advantages of low cost, environmental friendly (sulfur content<0.06%, and zero CO2 emission), energy saving, and high combustion efficiency (>90%). Sitong Boiler could design the boiler based on customers’ requirement, the grate could be designed as fixed grate, moving grate, chain grate, and reciprocal grate, etc.

Medicine, chemical, light industry, textile, building material, cultivation, food and beverage, plastic foam, printing washing, rubber processing, paper making, wood processing, hotel and garment manufacturing and tanning , etc.

Advantages of dzl steam boiler

Advanced Design and Configuration Function / Advantage
New Dust Collection Achieve almost zero pollution
Smoke and Dust Separation Chamber Decrease the original emission concentration of smoke
Splayed Wall Has the function of dust suppression, protect environment
Small Scale Flaker Type Grate New metallurgy formulate make the grate withstand high temperature more than 1600℃, make sure running without stop even when repair.
Spirally Corrugated Tube Improve heat transfer coefficient, thermal efficiency increase to 83%.
Airfoil Shape Flue Decrease the flue gas temperature in the area of high temperature tube plate, prevent tube plate cracking and swell.
Spark Retaining Wall in Furnace Improve the combustion efficiency.
New Type Furnace Arch Strength combustion, improve the adaptability of different coal types.
Header Backwater Ejection Avoid water wall tube crack
Large Heating Area Make sure excess output
Secondary Air Design Improve combustion efficiency and reduce emissions
Economizer/ Air Preheater Improve thermal efficiency

Technical Parameters

Model Rated evaporation
Rated pressure
Thermal efficiency (%) Available fuel Fuel consumption


Overall Dimension

L×W×H (mm)



DZL1-0.7/1.0/1.25-T 1 0.7/1.0/1.25 82 Biomass pellet ~200 5100×2200×3000 17
DZL2-0.7/1.0/1.25-T 2 0.7/1.0/1.25 82 ~400 5500×2300×3300 23
DZL4-1.25/1.6-T 4 1.25/1.6 82 ~800 6600×2600×3600 25
DZL6-1.25/1.6-T 6 1.25/1.6 82 ~1200 8200×2900×3800 35
DZL8-1.25/1.6-T 8 1.25/1.6 82 ~1600 8100×3100×3800 45
DZL10-1.25/1.6-T 10 1.25/1.6 82 ~2010 Up 7700×3200×3600

Down 8600×3000×2600

Up 23

Down 28

Note: 1. Parameter is for reference only, if any changes should follow the factory technical data.

2. Our company can design boiler products based on customers’ requirement and different biomass fuels.

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