Bubbing Fluid Bed Boiler  4Ton-75Ton

Bubbling Fluidized Bed Boiler is a type of coal biomass boiler using fluidized bed combustion system, design suitable boiler according to per customer's need.  

Fluidization: Air is blown upward through a bed of inert material (e.g., sand or ash) at a velocity that suspends the particles, creating a bubbling fluid-like state.

Combustion: Biomass fuel (e.g., wood chips, agricultural waste, pellets) is injected into the bed. The turbulent mixing of fuel and bed material ensures efficient heat transfer and combustion at lower temperatures (typically 800°C–900°C).

Heat Recovery: Flue gases heat recovery.

 Biomass Fuel Compatibility 

Suitable Fuels:

(1) Wood chips, sawdust, bark.

(2) Agricultural residues (palm kernel shells/fibre, straw, rice husk, coconut shells).

(3) Energy crops (miscanthus, switchgrass).

(4) Dried sewage sludge or poultry litter.

Fuel Requirements:

(1) Moisture content: <50% (preferably <30% for optimal efficiency).

(2) Particle size: <50 mm (may require shredding/chipping).

 Advantages  Bubbing Bed Boiler 

1. High Combustion Efficiency: Excellent fuel-air mixing and low combustion temperatures improve efficiency (up to 97%).

2. Fuel Flexibility: Can burn diverse biomass fuels (e.g., wet, high-ash, or irregularly shaped feedstocks).

3. Low Emissions: 

(1) Reduced NOx (due to lower combustion temps).

(2) Reduced SOx (if limestone is added to the bed to capture sulfur).

4. Ash Management: Less risk of ash melting (slagging) compared to fixed-bed boilers.

 Boiler System Components: 

1. Combustion Chamber: Where the fluidized bed and combustion occur.

2. Air Distribution System: Nozzles or grids to supply primary (fluidizing) and secondary (combustion) air.

3. Fuel Feeding System: Screw conveyors or pneumatic systems to inject biomass into the bed.

4. Heat Exchanger: Tubes/coils to transfer heat from flue gases to water/steam.

5. Ash Handling System: Removes ash and bed material for disposal or reuse.

6. Emissions Control: Cyclones, bag filters, or scrubbers to reduce particulate matter and pollutants.

 About us   Yuanda Boiler 

Looking For A Reliable Boiler Manufacturer?

1. Yuanda Boiler, established in 1956, with 70 years of boiler manufacturing experience and over 18 years of international export experience. We specialize in industrial boilers, thermal oil heaters, hot water boilers, steam boilers, biomass boilers and waste incineration equipment for global industrial projects.

2. Our products have been exported to more than 135 countries and regions, serving customers in textile factories, food processing plants, paper mills, hospitals, chemical industries, palm oil mills, plywood factories, laundry plants, pharmaceutical factories and many other industries worldwide.

3. With professional production lines, strict quality control system and international certifications including ASME, CE, ISO, EAC, DOSH, TUV and BUV, we provide reliable boiler equipment that complies with international standards and project requirements.

Professional Boiler Solution Support

Our experienced engineer team can provide:

1. Boiler model selection according to your project

2. Steam capacity and fuel consumption calculation

3. Boiler room layout suggestions

4. Technical drawings and datasheets

5. Chimney and auxiliary equipment recommendation

6. Container loading and shipping arrangement

7. Overseas installation and commissioning guidance

8. After-sales technical support

Note: OEM and customized boiler manufacturing services are available.

Contact Email: shirley@yuanda-boiler.com