Research about fluidized bed boiler:
Fluidized bed boiler is a type of boiler with a combustion chamber that burns fuel in a convective moving mixture layer with hydro-gas properties similar to boiling liquids. Fuels used for combustion in fluidized bed furnaces are solid fuels in the form of small particles (coal bran, cashew shells, sawdust, rice husks, agricultural residues, industrial wastes…).
Why is it called the “fluid bed”? Due to such a concept because the fuel combustion process is mixed with non-combustible solids including: sand, ash, coal, rice husk, sawdust… They will be blown up in suspension in the combustion chamber thanks to pressure force of the air stream. In this state, the fuel layer in the combustion chamber will be in a state of expansion, thanks to which the contact between the air and the fuel is also greatly increased. Combustible and non-combustible materials are free to move and boil like liquids. Solid particles are in this state and are called fluidized or fluidized beds.
How many types of fluidized bed boilers:
There are many types of fluidized bed boilers, but the two most common are:
Foam Fluidized Bed Boiler: Powder fluidized bed boiler is divided into several modules that can change the load easily or stop a zone as needed. However, the low combustion efficiency is suitable for sawdust fuel.
Circulating fluidized bed boiler: A new improvement step and overcome the disadvantages of a foam fluidized bed boiler, with high combustion efficiency, thoroughly burning difficult-to-burn fuels in accordance with abundant fuel sources. The disadvantage is that the structure is very complicated and the initial investment cost is higher.
Application of fluidized bed boiler in industry:
In almost all industries, all plants have a need to use heat and depending on the demand for heat with different levels and capacities, the fluidized bed boiler capacity is selected to suit the needs. production demand.
Thanks to the ability to save fuel up to 80%, the fluidized bed boiler can be widely used in factories for cooking and pasteurization (beverage factories, soy sauce factories, vegetable oil factories, etc.) fish sauce factory…) and industries of paper production, pulp, textile dyeing, animal feed, steaming and drying technology, food, pharmaceuticals, hotels…
Advantages of fluidized bed boiler:
Thanks to the automatic control system by PLC combined with inverter to control pressure, temperature, water level, the process of supplying fuel, wind, and water to the furnace is regulated (where the fuel enters the furnace, burns the fire). go there according to the furnace capacity, the residual amount in the combustion chamber is moderate) Saving fuel brings high economic efficiency, superior to the environment than other types of furnaces.
Circulating fluidized bed combustion technology has optimal combustion chamber temperature control, fuel and wind are distributed reasonably, unburnt fuel is recirculated to the combustion chamber to create a burnout process, low ash temperature , the alkaline ash produced by the boiling material helps prevent adhesion to the outer surface of the pipe, protects against chemical corrosion, and there are no moving mechanical parts in the combustion chamber, so the durability and reliability of boiler is very high, reducing the cost and time of equipment maintenance.
The circulating fluidized bed boiler can burn almost all solid fuels, agricultural wastes and by-products such as coal bran, sawdust, rice husks, seed shells, garbage..
The circulating fluidized bed boiler is mechanized with the fuel supply part, and the mechanical equipment prevents ash from sticking and abrading the pipe surface, so it can reduce costs, operating labor, and cleaning the boiler.
The circulating boiling fuel-fired boiler should have a large volumetric heat capacity, which helps to start and increase capacity quickly, combined with modern and reliable control sensors to make the boiler operate stably. no bulge or pressure drop.
When stopping the furnace, the amount of fuel lying down in the boiling layer is moderate, does not generate large heat, so stopping the furnace is very safe and economical.
SExhaustion of fuel in the combustion chamber combined with a high-performance advanced multi-level dust filter device automatically helps to clean exhaust gas before being discharged into the environment.
Working range is not limited in furnace power rating.
Places to buy reputable quality fluidized bed boilers:
KS – Boiler
Fanpage Facebook: https://www.facebook.com/ks.boiler
Hotline: 1900 055 595
Website: https://ks-boiler.com
Office address: No. 9A, Street 73, Tan Quy Dong Residential Area, Tan Phong Ward, District 7, HCMC
Factory address: E2/52 B1 Hamlet 5, Da Phuoc Commune, Binh Chanh District, HCM
