Circulating fluidized bed combustion technology has the characteristics of high efficiency, clean, and low temperature, it is developed and promoted in recently years. Sitong Boiler takes advantages of high efficiency external circulationg cyclone combustion technology, has the characteristics of high thermal efficiency, high desulfurization rate, compact structure, and easy operation. The boiler could be used for different industrial production and electric generation, it is the ideal alternative heating equipment to the conventional boilers. 

CFB boiler adopts fluidized combustion technology, the main structures includes combustion furnace (densen region and Dilute region) and circulating system (high temperature gas-solid separator and material returning system). The combustion system is consisted of furnace, ventilation device and winde chambers. Ventilation device has two types: one is air nozzles type, another one is tight hole types. There are many types wind chambers, the most frequently used is uniform-pressure wind chamber.

Technical Advantages

1.Burn Different Types Solid Fuels 

The temperature in furnace is 850℃～950℃, the fuel particle could reach to furnace temperature and burn rapaidly. Thus, CFB boiler could burn different type solid fuels without any auxiliary fuels. 

2. High Combustion Efficiency 

The fuel is mixed with a large amount of high temperature bed fuels and burn rapidly, and has high combustion rate. The unburned particles are returned to furnace for circulating cumbustion by cyclone separator, lengthen combustion period, and increase combustion efficiency. 

3. Excellent Desulfurization Effect 

Desulfurization process is processed under the optimum reation temperature in furnace, and the circulating system could lengthen the residence time of desulfurizer in boiler, also, the desulfurizer particle size is small as 0.1mm, the reaction contact area with fuel is large, so the desulfurization rate is high. 

4. Low NOx Emission 

The furnace temperature is keep at 850℃～950℃, the temperature is relatively low, so the NOx emission is less. Otherwise, CFB boiler adopts zoning air supply and zoning combustion, the fuel could burn sufficiently, low NOx emission. 

5. High Heat Load of Furnace Cross Section 

Strong mixing and fast heat transfer in furnace, the furnace cross section has high heat load (around 3～5MW/㎡). 

6. Slag Could be Utilizated Comprehensively 

The fuel is combusted under low temperature, and the high combustion efficiency makes slag has low carbon content, also, there are large amount of calcium oxide and calcium sulfate, could used for cement and brick, etc.

4ton CFB Boiler Parameter 

Model: SHX 4-1.25-S 

Boiler Capacity: 4t/h 

Boiler Pressure: 1.25Mpa 

Feed Water Temperature: 104℃ 

Design Thermal Efficiency: 81%~84% 

Exhaust Smoke Temperature: 155℃ 

Overall Dimension: 5300*3255*6400 (L*W*H)

Technical Advantages

1.Burn Different Types Solid Fuels 

The temperature in furnace is 850℃～950℃, the fuel particle could reach to furnace temperature and burn rapaidly. Thus, CFB boiler could burn different type solid fuels without any auxiliary fuels. 

2. High Combustion Efficiency 

The fuel is mixed with a large amount of high temperature bed fuels and burn rapidly, and has high combustion rate. The unburned particles are returned to furnace for circulating cumbustion by cyclone separator, lengthen combustion period, and increase combustion efficiency. 

3. Excellent Desulfurization Effect 

Desulfurization process is processed under the optimum reation temperature in furnace, and the circulating system could lengthen the residence time of desulfurizer in boiler, also, the desulfurizer particle size is small as 0.1mm, the reaction contact area with fuel is large, so the desulfurization rate is high. 

4. Low NOx Emission 

The furnace temperature is keep at 850℃～950℃, the temperature is relatively low, so the NOx emission is less. Otherwise, CFB boiler adopts zoning air supply and zoning combustion, the fuel could burn sufficiently, low NOx emission. 

5. High Heat Load of Furnace Cross Section 

Strong mixing and fast heat transfer in furnace, the furnace cross section has high heat load (around 3～5MW/㎡). 

6. Slag Could be Utilizated Comprehensively 

The fuel is combusted under low temperature, and the high combustion efficiency makes slag has low carbon content, also, there are large amount of calcium oxide and calcium sulfate, could used for cement and brick, etc.

4ton CFB Boiler Parameter 

Model: SHX 4-1.25-S 

Boiler Capacity: 4t/h 

Boiler Pressure: 1.25Mpa 

Feed Water Temperature: 104℃ 

Design Thermal Efficiency: 81%~84% 

Exhaust Smoke Temperature: 155℃ 

Overall Dimension: 5300*3255*6400 (L*W*H)

4ton CFB Boiler Parameter 

Model: SHX 4-1.25-S 

Boiler Capacity: 4t/h 

Boiler Pressure: 1.25Mpa 

Feed Water Temperature: 104℃ 

Design Thermal Efficiency: 81%~84% 

Exhaust Smoke Temperature: 155℃ 

Overall Dimension: 5300*3255*6400 (L*W*H)

Transaction Process

PRE-SALE SERVICE

1) 24 hours customer service hot line, we will offer you professional technical data, suggestion, and purchase guidance.

2) Welcome to visit our factory, we could offer you free airport pick up service, and help you book hotel, tickets, or plan route, etc.

ON-SALE SERVICE

Our professional engineering team will customize the boiler based on your requirement. Also, we could help arrange the boiler room and offer appropriate energy utilization plan, to maximum boiler users’ profit. Sitong Boiler cooperates with experienced transportation agency, to ensure the products arrive to destination intactly. We have overseas installation team for door to door installation, debugging, and periodic maintenance.

Process

customer inquiry -- professional consulting service, customize boiler based on requirement -- place order and pay deposit -- boiler manufacturing -- pay balance -- delivery -- installation, debugging and periodic maintenance

AFTER-SALE SERVICE

1) Offer lifelong door - to - door after sale service and quarterly visiting. We have professional overseas engineering team and overseas agencies, to solve users’ problems during boiler operation

2) 24 months warranty period, if boiler body or accessories are damaged under proper operation, Sitong boiler will maintenance or replace the damaged accessories for free (except spare parts).

3) 24 hours service hot-line, offer proper solutions to solve the problems happened during operation.