zozen boiler
Home Service FAQs FAQ of circulating fluidized bed boilers What is the difference between fluidized bed boiler and common boiler?

What is the difference between fluidized bed boiler and common boiler?

01 Apr 2022

Different combustion modes are the core difference between fluidized bed boiler and common boiler.

Fluidized bed boiler adopts fluidized combustion mode. After the fuel is crushed to a proper particle size by a crusher, it is fed from the upper part of the air distribution plate of the combustion chamber by a coal feeder, mixed with the hot boiling materials in the combustion chamber, heated rapidly, and the fuel quickly catches fire and burns. Under the action of high air velocity, a large number of solid particles are carried out of the combustion chamber. After being separated by a gas-solid separator, the separated materials are returned to the combustion chamber by a material return device to continue to participate in combustion.

Common boilers are fired by layers. The fuel enters the chain grate through the coal hopper, and enters the furnace with the movement of the chain grate to start its combustion process. Burned coal cinders are discharged to the slag discharge well at the tail of the chain grate with the movement of the chain grate. At the same time, there is air cooling under the chain, which can protect the grate from burning.

Structural and system differences between fluidized bed boiler and common boiler.

The difference of combustion mode leads to the difference of structure between fluidized bed boiler and common boiler. The main structure of circulating fluidized bed boiler includes combustion chamber and circulating furnace, starting burner, air chamber, air distribution device, furnace, gas-solid separator, material return device, drum, downcomer, water wall, superheater, economizer, air preheater, etc. In addition, the circulating fluidized bed boiler mainly includes blower, induced draft fan, return fan, crusher, coal feeder, slag cooler, dust collector, desulfurization and denitrification equipment, chimney, etc.

Common boilers include chain grate, water wall, steam drum, downcomer, superheater, etc. The system has no return fan and crusher.

Related FAQs View More
Related news View More
  • Breakthrough in Overseas Market: ZOZEN Biomass Steam Boiler Empowers Pakistan’s Textile Industry
    Recently, ZOZEN Boiler successfully delivered a DZW series 20-ton reciprocating grate biomass steam boiler to Kohinoor Mills, a renowned textile enterprise in Pakistan, supporting its transition to green and sustainable production. This collaboration not only underscores ZOZEN’s growing influence in overseas markets, but also highlights its technological innovation and professional service capabilities in the biomass boiler field.   ZOZEN Biomass Boiler Supports Pakistan’s T...
    26 Aug 2025
  • ZOZEN Boiler’s Customized Solution Empowers Bestway’s Vietnam Plant for Efficient Growth
    In the global leisure and entertainment product manufacturing sector, Bestway Group is undoubtedly a leading player. With operations spanning over 200 countries and regions, its product portfolio covers around 800 items across leisure, sports, and camping categories. As the company continues to expand its industrial footprint, the Bestway plant in Tien Giang Province, Vietnam, faced an urgent need for a reliable and efficient heat energy supply to support production. ZOZEN Provides a Tailored...
    19 Aug 2025
  • ZOZEN Gas-Fired Boilers Help Mongolia MCS Coca-Cola Reach New Heights
    In 1886, Atlanta pharmacist John Pemberton mixed the first glass of Coca-Cola. What began as a “brown tonic” selling 25 bottles a day has since become a global beverage legend, spanning more than 200 countries with 2 billion servings consumed daily. In Mongolia, its exclusively authorized producer MCS Coca-Cola is expanding into new categories such as iced tea and juices. Powering this strategy is the thermal engine behind the scenes: three 8 t/h WNS series gas-fired steam boilers fr...
    12 Aug 2025

Find the Right Boiler For You

Name *

Email *

WhatsApp/WeChat

Products

Power/Capacity