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Product Thermal Capacity: 1 - 20 t/h
Working Pressure: 0.7 - 2 Mpa
Product Thermal Capacity: 20 - 110 t/h
Working Pressure: 1.25 - 5.3 Mpa
Product Thermal Capacity: 2 – 20t/h
Working Pressure: 1 - 2.5 MPA
Product Thermal Capacity: 4 - 35 t/h
Working Pressure: 1.0 - 2.5 MPA
Boiler engineers can choose between two main types of fluidized-bed boilers—bubbling fluidized bed (BFB) and circulating fluidized bed (CFB). In BFB boilers the velocity of the combustion air is low enough that the fluidized particles remain in the lower furnace; in a CFB unit the velocity is greater and hot particles are circulated through the entire range of the boiler combustion zone.
efficient circulating fluidized bed boiler combustion and fuel flexibility Our CFB boiler technology allows for a wide range of fuels to be burned efficiently. This includes low-grade and difficult-to-burn fuels such as anthracite, lignite, petroleum coke, oil shale, discarded coal, and biomass within a …
(c) Fast Fluidized Bed (Circulating Fluidized Bed): The air velocity in circulating bed combustion is between 4 — 10 m/s. In circulating bed the solid particles elutriated with are return back to the bed at sufficiently high rate. The bed column is divided into two regions.
Jan 30, 2018· Sumitomo SHI FW is the global leader in CFB technology and has supplied a full range of CFB boilers totaling 36 GWe in power capacity and 30 million hours of …
Fluidized-bed combustion (FBC) uses a mixture of particles suspended in an upward flowing airstream, which combine to exhibit fluid-like properties. Combustion takes place in the bed with very intense mixing of gases and solids, high heat transfer to the furnace, and a low combustion temperature.
The heat released during combustion heats up the surrounding boiler tubes and generates steam. The major advantages of Bubbling Fluidized Bed Combustion are the enhanced thermal efficiency, easy ash removal. Another type is the Circulating Fluidized Bed Combustion; it is applied to fuels with higher heating values such as Petcoke.
The present invention is related to a circulating fluidized bed gasification or combustion system ( 1 ) using coal or biomass as raw material and comprising a combustion/gasification reactor ( 2 ); a cyclone ( 3 ) which is in connection with the reactor ( 2 ) so as to seperate solid particles from gas flow; a downcomer ( 4 ) which is in connection with the reactor ( 2 ) and the cyclone ( 3
Circulating fluidized beds are popular for large-scale combustion operations, and they are also gaining attention for gasification of carbonaceous feedstocks. Circulating fluidized beds utilize the entire height of tall vessels for gas–solids contacting, with no distinct interface between bed …
Fluidized-bed combustion : Fluidized-bed combustion Circulating Fluidized Bed Boiler In a CFB boiler furnace the gas velocity is sufficiently high to blow all the solids out of the furnace. The majority of the solids leaving the furnace is captured by a gas–solid separator, and …
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