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Tag Archive How Does A Circulating Fluidized Bed (CFB )Boiler Work

How Does A Circulating Fluidized Bed (CFB )Boiler Work

Circulating Fluidized Bed (CFB )Boiler
Circulating Fluidized Bed combustion has given boiler and power plant operators a greater flexibility in burning a wide range of coal and other fuels. All this without compromising efficiency and with reduced pollution. With CFB, solids are circulated all the way to the top of the combustor, into the cyclone return system, then back to the fluidized bed combustion chamber. The cloud of circulating solids creates a “flywheel” effect that generates massive thermal inertia. Whether the unit is at full or partial load, around 2 percent of the circulating mass is consumed as fuel.

Circulating Fluidized Bed (CFB )Boiler Working Principle
The circulatory system is made up of the furnace of CFB boilers, separators, risers and feeders and other parts of the back, this system can fly out of the furnace of thick combustible solids through separator and trap down, hearth via risers, back valve, after coal by coal into the furnace, part of which in the dense-phase zone combustion, another part with the air flow upward and into the separator. Furnace combustion of a highly dilute phase can be divided into the dense-phase zone of combustion and combustion. Enter the separator material with the fluid up into the separator in two parts of the coal-fired ones and circulating materials, recycle items are to be considered through the hearth burning weight loss. The air required for combustion from the wind and the air distributor plate into the boiler (CFB boilers) furnace burned generates flue gases from the furnace after the separator from the circulatory system. Steady state there is always a certain amount of material flows in the system, the system will be in the cycle running.

What fuels can be heating CFB boiler
CFB boiler can be heating by biomass fuels, like bagasse, lees, rice husk, palm shell, wood chip as well as different kinds of cool. And coal fired CFB boiler are favored by people with development of economy.
One of our customer’s fluidized bed boilers asset is its ability to burn a variety of fuels. But such boiler flexibility requires far more attention to fuel handling and crushing equipment than for a plant that will burn the same fuel over many decades
With CFB, solids are circulated all the way to the top of the combustor, into the cyclone return system, then back to the fluidized bed combustion chamber.The cloud of circulating solids creates a “flywheel” effect that generates massive thermal inertia. Whether the unit is at full or partial load, around 2 percent of the circulating mass is consumed as fuel.

Circulating Fluidized Bed (CFB )Boiler Supplier
For more CFB Circulating Fluidized Bed Boiler Design Types, welcome to contact us at any time! Or you can leave us message in below form. We will back to you within 24 hours. Our Email: service@stongboiler.com.