Home > Products > circulating fluidized(CFB) bed boiler > Circulating fluidized bed boiler,Power plant CFB boiler,Industrial coal fired steam CFB boiler
Circulating fluidized bed boiler,Power plant CFB boiler,Industrial coal fired steam CFB boiler
- 50 Set / Sets per Month
- hongkong/tianjin/shanghai/lianyungang
- T/T
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Product Details
Condition: | New | Type: | Natural Circulation | Usage: | Power Station |
Structure: | Water Tube | Pressure: | High Pressure | Style: | Horizontal |
Fuel: | Other, Coal-fired, bituminous coal,anthracite coal,lean coal,lignite,coal gangue | Place of Origin: | Henan, China | Brand Name: | Yongxing |
Model Number: | SHXF35-1.25-AI | Output: | Steam | Certification: | ISO9001:2008; ISO14001:2004 |
After-sales Service Provided: | Engineers available to service machinery overseas |
Product Description
China high quality circulating fluidized bed boiler,Power plant CFB boiler,Industrial 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.
Fluidized Bed :
At the bottom of the boiler furnace there is a bed of inert material. Bed is where the coal or fuel spreads. Air supply is from under the bed at high pressure. This lifts the bed material and the coal particles and keeps it in suspension. The coal combustion takes place in this suspended condition. This is the Fluidized bed.
Special design of the air nozzles at the bottom of the bed allows air flow without clogging. Primary air fans provide the preheated Fluidizing air. Secondary air fans provide pre-heated Combustion air. Nozzles in the furnace walls at various levels distribute the combustion air in the furnace.
Circulation of Yongxing circulating fluid bed boiler:
Fine particles of partly burned coal, ash and bed material are carried along with the flue gases to the upper areas of the furnace and then into a cyclone. In the cyclone the heavier particles separate from the gas and falls to the hopper of the cyclone. This returns to the furnace for recirculation. The hot gases from the cyclone pass to the heat transfer surfaces and go out of the boiler.
The systems of Yongxing circulating fluid bed boiler:
1. The main body system
2. The fan system
3. Fuel feeding system
4. Feeding water system
5. Electric control system
6. Cold slag system
7.Smoke treatment ssytem
8. Dust collector system
Main features of Yongxing circulating fluid bed boiler:
1. Fuel adaptability to meet the multi-fuel combustion.
2. A high degree of automation, in the long term to keep the boiler safe and economic operation.
3. Boiler combustion efficiency as high as 95% to 99%, fuel efficiency, the boiler thermal efficiency up to 87%, and energy-saving and efficient.
4. Using exhaust high temperature cyclone separator, the collection of bed material high furnace heat transfer coefficient high overload ability.
5. Boiler load adjustment range, can be 110% to 30% range of adjustment, especially for a large range of boiler load fluctuations occasion.
6. Bed compound can be added limestone, combustion and flue gas SO2 in the reaction of sulfate, desulfurization to meet environmental requirements, while the lower furnace combustion temperature can inhibit the formation of NOx, truly environmentally friendly combustion.
Bed Material:
To start with the bed material is sand. Some portion is lost in the ash during the operation and this has to be made-up. In coal fired boilers the ash from the coal itself will be the makeup material. When firing bio fuels with very low ash content sand will be the makeup bed material. For high Sulphur coals Limestone addition to the bed material reduces SO2 emissions.
SHXF uses crushed coal of 3 to 6 mm size. This requires only a crusher not a pulverizer. From storage hoppers Conveyer and feeders transport the coal to feed chutes in the furnace. Start up is by oil burners in the furnace. Ash spouts in the furnace remove the ash from the bottom of the furnace.
Different boiler manufacturers adopt different methods of cyclone separation , the fluidizing nozzles etc. But the basic principles remain the same.
For more details,please contact me:
Tel: 0086-0371-60183783
Fax: 0086-0371-60183781
Skype: Christina101128
Mobile: 0086-13676929791
Contact Us
- Henan Yongxing Boiler Group Co., Ltd.
- Contact nameCarole Zong
- Phone86-0371-60183783
- AddressNO.8 Zijingshan road Zhengzhou,Henan
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