Zhangjiagang Dehai Boiler Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 10 Sets / Year |
| Delivery Time | 150 Days |
| Packaging Details | Seaworthy packing |
| Type | Natural Circulation |
| Pressure | 1.25MPa |
| Structure | Fire Tube |
| Thermal efficiency | 86% |
| Fuel | Coal-fired |
| Weight | 6-130ton |
| Brand Name | Dehai Boiler |
| Model Number | CFB Boiler |
| Certification | ISO9001 , SGS , ABS , ASME |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 10 Sets / Year |
| Delivery Time | 150 Days | Packaging Details | Seaworthy packing |
| Type | Natural Circulation | Pressure | 1.25MPa |
| Structure | Fire Tube | Thermal efficiency | 86% |
| Fuel | Coal-fired | Weight | 6-130ton |
| Brand Name | Dehai Boiler | Model Number | CFB Boiler |
| Certification | ISO9001 , SGS , ABS , ASME | Place of Origin | China |
| High Light | circulating fluidized bed boiler ，fluidized bed furnace | ||
75ton Coal fired high pressure power plant circulation fluidized bed utility boiler
CFB Boiler Advantages
1. Wet flue gas desulfurization has typically been used to capture the pollutants gas. However, this machinery is expensive, hard to maintain and takes a lot of space in power plant. Wet FGD uses lot of water, however only marginal metals like mercury and acid gases such as HCl, HF, SO2 and SO3 can be captured.
2. The turbulator wall design will ensure a perfect mixing and the ability to capture various pollutants. The used of alloy metals had been replaced with a carbon steel design, reducing the installation cost. It also comes in a compact size thus the capital costs could be reduced. The water usage can also be reduced with the design of plug-free water spray nozzles.
Fluidized Bed Introduction
1. Circulating fluidized bed is a relatively new technology with the ability to achieve lower emission of pollutants. Extensive research has been conducted on this technology within the past 15 years due to increasing concerns over pollution caused by traditional methods of combusting coal and its sustainability. The importance of this technology has grown recently because of tightened environmental regulations for pollutant emission.
2. The Mercury and Air Toxic Standards enacted in December 2011 by the EPA have forced all the countries in Europe and America to strictly adhere to this policy. This means that emissions such as metals, acid gases, organic compound, flue gas acids and other pollutants from power plants or industrial facilities have to meet the requirements set by EPA and upgrades have to be done for facilities that do not meet the standards. As a result, the demand for circulating fluidized bed technology is predicted to sky rocket.
Circulation
1. 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. 2. This returns to the furnace for recirculation. Hence the name Circulating Fluidized Bed combustion. The hot gases from the cyclone pass to the heat transfer surfaces and go out of the boiler.
Bed Material
1. 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.
2. 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.
Main Specifications of Circulation Fluidized Bed Boiler
| boiler capacity | 35t/h | 75t/h | 130t/h |
| rated steam capacity t/h | 35 | 75 | 130 |
| rated working pressure Mpa | 3.82 | 3.82 | 5.3 |
| rated steam temperature℃ | 450 | 450 | 450 |
| feed water temperature ℃ | 105 | 130 | 150 |
| combustion method | Circulation fludized bed combustion | Circulation fludized bed combustion | Circulation fludized bed combustion |
| applicable coal | Coal | Coal | Coal |
| design the fuel low level caloric | 12670 | 8117 | 6520 |
| the coal consumption at full load operation(Kg/h) | 9045 | 20417 | 38792 |
| designed efficiency % | 88.6 | 88 | 88 |
| exit gas temperature ℃ | 150 | 145 | 150 |
| De-sulfur efficiency % | 88 | 88 | 88 |
| fuel particle requirement mm | ≤10 | ≤8 | ≤10 |
| lime stone particle requirement mm | ≤2 | ≤2 | ≤2 |
| drum central line elevation mm | 25000 | 28300 | 33000 |
| the highest point elevation l mm | 26750 | 33950 | 54270 |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1998
Total Annual:
30,000,000.00-50,000,000.00
Employee Number:
300~500
Ecer Certification：
Active Member
Dehai Boiler is a manufacturer of A-class boiler(Power station boiler,industrial boiler,HRSG,waste-to-energy boiler,biomass boiler) and correlated A-class pressure parts intergrating the design,fabrication,installation,repair and mainteance. Dehai has ISO9001:2008 certificate is... Dehai Boiler is a manufacturer of A-class boiler(Power station boiler,industrial boiler,HRSG,waste-to-energy boiler,biomass boiler) and correlated A-class pressure parts intergrating the design,fabrication,installation,repair and mainteance. Dehai has ISO9001:2008 certificate is...
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