Product Specifications
| Prod Model: |
Circulating Fluidized Bed Steam Boiler |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| CFB Boiler: |
Circulating Fluidized Bed Boilers |
| Rated Vapor Capacity: 6000kg/H: |
Rated Pressure: 13.0bar |
| Place Style: |
Horizontal |
| Gas Flow Type: |
Water Tube |
| Fuel: |
Oil-Fired |
| Usage: |
Industrial |
| Pressure: |
Low Pressure |
| Burning Style: |
Chamber Combustion Boiler |
| Media: |
Steam and Water |
| Water Circulation: |
Natural Circulation |
| Manufacturing Level: |
B |
Product Description
PART I Customer Requirement
Boiler type: Circulating Fluidized Bed Steam Boiler Structure type: Horizontal fluidized bed
Fuel type: Crushed coal
Rated vapor capacity: 6000kg/h
Rated pressure: 13.0barT
PARTII Product Introduction
Brief Introduction:
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
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.
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.
CFBC 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.
Beijing Double Dragon International Industrial & Mining Machinery Co., Ltd. is a company authorized by the Chinese Foreign Economy and Trade Committee which also get the right to do import and export business independently. The company locates at Beijing, the capital of China, and seats at No. 2-1803 Soubao Business Center, No. 16 Nansanhuan Xilu, Beijing, China.
Bidragon International as a professional export & import company, is one of the selling leaders of agricultural machineries in China, for we have the long stable cooperation with many manufactures of agricultures machineries & grain processing machineries. And most of our partnerships are among the best enterprises in China machinery industry. Many of them are modern enterprises with long histories of manufacturing agricultural machinery. with top quality products, perfect service, a visionary management, Beijing Double Dragon International Agricultural Machinery Co., Ltd. is ready to meet any of the customer's requests from overseas.
As a professional export and import company, our company is the sole agent in overseas market for several manufacturers, such as Changge Chili Processing Machinery Factory, Hangzhou Biomass Boiler Co., Ltd. And Hebi Yuxing Mine Hoist Factory, and they are professional manufacturers in their fields by super quality and the best service.
Our company is engaged in four ranges of machinery:
1. Spice processing machinery, such as chili dryer, chili stem cutter, chili dry washer, chili grinder, coriander and turmeric grinder, etc...
2. Different kinds of boilers, such as wood pellet boiler, straw pellet boiler, rice husk fired boiler, wood dust fired boiler, wood fired boiler and ion exchange resin for boilers.
3. Mine equipments, such as mine hoists, mine winder, mine windlass, mine winch, infrared methane sensor and other kinds of safety detecting devices for coal mines and other mines.
4. Small enrichment machinery, such as tooth picker making line, nail making machine by waste steel wire, skewer(barbecue stick) making line, etc...
