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8 ton membrane wall boiler
12 ton water tube boiler
10 ton woodchips pal shell biomass boiler
8 ton membrane wall boiler
12 ton water tube boiler
10 ton woodchips pal shell biomass boiler

SZL Biomass Fired Boiler

chain grate boiler | Double drum boiler | Membrane wall boiler

SZL series boiler is double drum boiler with seamless full membrane wall, grate combustion burning, can produce steam for industrial production. Also our company designing SZL-D type boiler most suitable for biomass fuel.

Output: steam
Capacity: 2-40 ton/h
Styles: SZL-D, SZL-A
Available Fuel: biomass, woodchips, palm shell, cocout, waste scrap, bagasse, sawdust, husks etcn
Applied Industries: steam for heating / drying / steam turbine etc


  • SZL series water tube biomass, wood, coal, palm kernel shell, rice husks, sawdust fired boiler for industrial production

  • SZL boiler has SZL-A & SZL-D type, especially SZL-D type is our company patented feature product. This boiler has the characteristics of ①15% bigger furnace combustion, the heated area increases by 40% ②Light furnace wall, not easy to collapse, good airtightness, no deformation, no dust falling; ③The best adjustability, segmented air supply (preheating zone, drying zone, main combustion zone, coke zone, ash slag zone) can freely adjust the air volume ④ Secondary cyclone burnout chamber, greatly reduce fuel cost, improve boiler thermal efficiency ⑤ Built-in dust removal device in the furnace, effectively solve the problem of coking

  • Yuanda Boiler supply whole biomass boiler system: boiler proper |fuel feeder| grate speed reducer | slag remover | PLC control panel | Fleck water treatment | instruments&valves | feed water pumps | water tank | circulation pump | chimney | steam header | economizer | forced fan&induced fan | smoke dust clean equipment | dareator, TDS(choice), high efficiency & energy saving.

  • Application:

  • Generally, SZL industrial boiler is reuqired in every industrial production, for heating/drying/steam turbine. Such as food & beverage, starch, tea, feed mill, rice mill, garments, chemical, pharmaceutical, paper, textile, wood processing, packaging, dyeing, foam, refinery, dairy products, edible oil, tobacco, plastic rubber, oilfield, autoclave, EPS, leather, battery, concrete, building materials, washing powder, soap, cosmetic...



Larger New Furnace + Whirlwind Burning Chamber Design

1. Increases furnace temperature, strength the speed of flue gas, ensure full combustion, avoids thermal nitrogen & anti-coking; 2. Whirlwind burning chamber make the fuel burned again, 5-8% higher efficiency


Front-rear water-cooled arch design

1. Increases the heating area, improve boiler efficiency; 2. Strength the furnace and arch, avoid damage to the arch, protect it from collapse, then extending the boiler lifespan


Seamless Membrane Wall Structure, Fully Sealed

1. Airtight and uniform-pressure win room, good air tightness, strong support, does not deform, does not fall off; 2. Light furnace wall does not collapse and the boiler weight is reduced by 30%


ND Economizer Design, Energy Saving

1. Recycle exhausted smoke to heat feed water, increase feed water temp then save fuel cost at least 6% per hour 2. Reduce chimney smoke temperature

Our Service


From boiler solution, optimization to installation, 24 hours online, provide technical support and avoid risks for you


Based on user needs, we supply tailored service, boiler drawing&PID system, boiler room design, foundation drawings etc


Full-life After sale service. With our professional technical experts and service team, skilled technology provides customers with professional services


Our engineer on-site guidance installation and commissioning, ensure boiler running perfect, free training for boiler operator


According to the customer production requirements, provide professional boiler solutions, cost analysis, project investment budget, boiler drawing&installation and commissioning service


biomass steam boiler
Model Rated steam output
Rated steam pressure
Rated steam temperature
Feed water temperature
Thermal efficiency(%) Fuel consumption(Kg/h)
SZL 2-1.25/1.6/2.5/3.82-AII/T/D 2 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 385.8
SZL 4-1.25/1.6/2.5/3.82-AII/T/D 4 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 807
SZL 6-1.25/1.6/2.5/3.82-AII/T/D 6 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 1209
SZL 8-1.25/1.6/2.5/3.82-AII/T/D 8 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 1563.94
SZL 10-1.25/1.6/2.5/3.82-AII/T/D 10 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 2149.3
SZL 12-1.25/1.6/2.5/3.82-AII/T/D 12 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 2399.7
SZL 15-1.25/1.6/2.5/3.82-AII/T/D 15 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 2568.4
SZL 20-1.25/1.6/2.5/3.82-AII/T/D 20 1.0 to 3.8 (10-38 in bar) 184~450 20/105 87 4266.9
Note: Standard boiler parameter is for your reference, should follow the actual technical data according customer needs & engineer design.

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DZH Coal/Wood Boiler

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