Project Cost Power Plant 10 MW CFB Boiler
21-03-2019
Project Cost of 10 MW Circulating Fluidized Bed (CFB) plants can comply with environmental emissions regulations without flue gas treatments for sulphur capture and for NOx reduction. Because of the easier preparation of the fuel feed (crushed instead of finely ground), CFB is amenable to the use of lignite and co-firing with biomass.
The limiting factor for co-firing with biomass, in addition to the availability of sustainable biomass, is its high alkali content which reduces the softening temperature of the lignite ash and can cause increased fouling of boiler tube surfaces. However the combustion temperature in CFBC is sufficiently low to avoid slagging of heat exchangers. There are many 10MW size sub critical CFB units in operation, and there is now an offer of a 10 MW CFB boiler with supercritical steam on the market.
Coal drying is part of coal preparation and grinding for PC combustion and for crushing for CFB combustion. It is also integral to the thermodynamic design of the plant. Drying improves crushability or grindability of the coal and assists ignition and flame stability, and can also improve the plant efficiency.
For high moisture sub-bituminous coal or lignite, furnace gas withdrawn from the top of the boiler combustion chamber is used as drying agent. When the furnace gas is reintroduced into the boiler transporting the dried pulverized lignite and the vapour through the burners, the plant efficiency is unaffected. If, however, boiler exit flue gas is used for lignite drying and low pressure bleed steam from the steam turbine is used for feed water heating, the plant efficiency increases. Comparison of measurement data for the alternative systems of furnace gas and flue gas-drying of a lignite with 47% initial moisture dried to 25% shows 4.9% relative efficiency improvement for flue gas coal drying.
Further improvement of the plant efficiency can be gained by dewatering high moisture coals prior to combustion . The temperature of the vapour leaving a steam-fluidized coal dryer is raised by compression, and used for further drying by means of a tubular heat exchanger immersed in the coal dryer. Coal-moisture is removed in the form of liquid water; the boiler is fired by dried coal, and the water vapour content of the flue gas is reduced to the sum of the residual moisture of the dried coal and the combustion products of the hydrogen in the coal.
Circulating fluidised bed Boiler Cases
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Why choose ZG Boiler as Project Cost Power Plant 10 MW CFB Boiler manufacturer
We have over 70 years' experience of boiler and autoclave, and we have a professional installation and after-sales staff for products.Take advantage of the most economical way to improve efficiency and operating flexibility, Get substantial savings on your fuel costs,Reduce all emissions for each K/W of electricity generated, including CO2.
How about the quality of Project Cost Power Plant 10 MW CFB Boiler ?
Our Project Cost Power Plant 10 MW CFB Boiler manufactured strictly according to national and international standard. our products have approved ASME, IBR, ISO9001-2008, etc
All our company's products are 100% factory inspected to ensure the high quality.
We provide one year quality warranty service, please rest assured purchase.
Basic Information of CFB Boiler manufacturer--- ZG Boiler
Established:In 1945
Number of Employees:above 1500 People
Our products:industrial horizontal steam boiler and hot water boiler(biomass boiler, gas boiler, oil boiler, coal boiler, etc), CFB boiler, power plant boiler, waste heating recovery boiler, Pressure Vessel(AAC autoclave, Curing tank,etc )
Factory Size (Sq.meters):400,000 square meters
Factory Location:Factory 1: Zhengzhou,,Henan, China. Factory 2: Xingyang,Henan,China
Number of R&D Staff:376 people
Our Trade & Market
Export Percentage:30-40%
Total Annual Sales Volume:US$100 Million
Main Market:South America(Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Brazil, Bolivia, Chile, Paraguay, Uruguay, Argentina and French Guiana),
North America(Bahamas, Canada, Costa Rica, Cuba, El Salvador, Guatemala, Honduras, Haiti, Jamaica, Mexico, Nicaragua, Panama),
Eastern Asia(Mongolia / Russia / North Korea / South Korea / Japan),
Oceania(Australia, New Zealand, Fiji),
Mid East(Bahrain, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, UAE and Yemen, Palestine, Algeria, Libya, Morocco, Tunisia and Sudan, Mauritania and Somalia),
Africa(Egypt, Sudan, Libya, Tunisia, Algeria, Morocco, Ethiopia, Somalia, Kenya, Tanzania, Sierra Leone, Liberia, Cote d'Ivoire, Ghana, Togo, Niger, Nigeria, Cameroon, Gabon, Congo (Brazzaville), Zambia, Zimbabwe, Angola, Mozambique, Botswana, Namibia, South Africa),
South Asia(Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives)
Southeast Asia(Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, the Philippines, East Timor)
Domestic Market(China)
