Double Cyclone Low Speed Circulating Fluidized Bed Power Station Boiler

Rated Capacity : 25-130 t/h
Pressure : 3.82Mpa-5.29Mpa / 38.2bar-52.9bar
Fuel : bituminous coal, anthracite coal, meagre coal, lignitous coal, coal gangue, slag, etc.
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Product Description
The new type double cyclone circulating fluidized bed boiler with low speed is a new generation, which is designed by Tsinghua University: Zhengzhou Research Institution of Low Speed Circulating Fluidized Bed Boiler. The boiler inherits the original technology advantages, at the same time, makes big breakthrough on the technology of cyclone design on combustion, cyclone separator structure & parametric design, and loop seal system. The boiler is awarded as national patent product.
Zhongding new type double cyclone circulating fluidized bed boiler is a high efficiency, energy saving and environmental protect equipment. It is generally used in Power station, central heating, city heating, paper plant,etc
1. Technological breakthrough
The new type boiler has great technological breakthrough on cyclone separator structure design, separator’s parametrization design, loop seal system, and cyclone design on combustion, effectively improve the combustion and separate efficiency, avoid the problem of coking.
2. Compact structure
Integrate furnace, separator and loop seal system by using membrane water wall, structure compact.
3. Low thermal loss
The loop seal system is composed of two membrane water walls, and the partial heat carried by the fly ash is absorbed by the water wall tube.
4. Adopts anti wear design
A number of measures used on anti wear design, reduce the fluidization velocity, prevent the wear of separator heating surface and membrane water wall.
5. Various kinds of coal are adaptable.
6. The fault rate is extremely low
7. Environmental protection
low-temperature combustion technology, reduce the generation of noxious gas, the limestone can be added to the furnace for desulfuration, harmful gas emissions can meet the environment requirement without use of any denitrification equipment .

Rated Evaporation Rated Steam Pressure Rated Steam Temperature Feed Water Temperature Design Efficiency Body Dimension
ZDG-25/3.82-M 25t/h 3.82MPa 450℃ 105℃ According to the different types of coal, the design efficiency is not lower than 86%. 12650×8530×13200
ZDG-35/3.82-M 35t/h 3.82MPa 450℃ 105℃ 13350×9880×15800
ZDG-35/5.29-Q 35t/h 5.29MPa 485℃ 150℃ 13350×9880×15800
ZDG-40/3.82-M 40t/h 3.82MPa 450℃ 105℃ 14530×10280×18800
ZDG-65/3.82-M 65t/h 3.82MPa 450℃ 140℃ 15530×11080×21300
ZDG-75/3.82-M 75t/h 3.82MPa 450℃ 150℃ 16240×10600×33500
ZDG-130/3.82-M 130t/h 3.82MPa 450℃ 150℃ 21060×14400×40650
Note: Parameter is for reference only, the specific should follow the design institution.

Transaction Process
Customer Inquiry -- Offer Professional Consulting Service -- Place Order -- Customize Boiler Based on Customers’ needs --Production-manufacturing -- Payment -- Impeccable After Sale Service (installation and debugging, periodic maintenance, etc.)

Offered Technical Documents
Installment and Operation Instruction Quality Certificate
Inspection Certificate of Boiler Quality General Drawing of Boiler
Foundation Drawing Boiler Body Drawing
Boiler Room Design Drawing Drawing of Valves, Instruments and Accessories

Company Strength
Zhongding Boiler is the industrial boiler professor of China, it is referred as technical innovated enterprise. The manufacturer base is located in Zhengzhou Airport Economy Zone, and covers an area of 130 thousands m2. The company owns about 800 employees, including 110 technical engineers, and about 700 sets advanced manufacturing equipment. Zhongding Boiler concentrates on the invention of high-tech and energy saving boilers, has owned more than 20 sorts national patent technologies. 


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