Product thermal capacity : 1-20 t/h Working pressure : 0.7-2 Mpa Available fuel : Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc. Available industries : Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc. Introduction:
fluidized bed biomass boiler - Bing is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.
Technical advantages Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.
Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.
Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.
Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.
M. Mandø, in Biomass Combustion Science, Technology and Engineering, 2013. 4.5.2 Fluidized-bed firing. In fluidized-bed boilers a bed, usually consisting of sand particles, is brought into a fluidized state by primary air supplied from below the bed.
Author: Sumitomo SHI FW
Suflur dioxide emissions from wood waste and biomass are generally insignificant; however, if sulfur is a contaminant it can be neutralized by adding limestone to the fluid bed. Circulating or Bubbling ? Boiler engineers can choose between two main types of fluidized-bed boilers—bubbling fluidized bed (BFB) and circulating fluidized bed (CFB).
BFB and CFB boilers burning biomass typically have no heat transfer surfaces at the dense part of the fluidized bed. Several BFB boilers that burn coal have been built using fluid bed heat transfer surfaces to limit the lower furnace bed temperature. For biomass these are not needed.
Fluidized-bed boilers are the most common type of boilers recommended for biomass fuel. The fuel is suspended by an upward flow of combustion air through a bed of hot, inert particles, allowing oxygen to reach the combustible material more readily.
· PDF file- Circulating Fluid Bed - Pulverized Coal - Biomass - Oil & Gas - Solar - Bubbling Fluid Bed - Boiler and HRSG Maintenance •Plant Operation Foster Wheeler Global Power Group Products & Services . 4 Circulating Fluidized Bed (CFB) Boilers Waste Heat Boilers Heat Recovery Steam Generators Bubbling Fluidized Bed (BFB) Boilers PC Boilers
Click to view on 1:5726/8/2014· HYBEX is an advanced Bubbling Fluidized Bed (BFB) boiler developed by Valmet. This video presents the principle of the combustion process. HYBEX boiler provides excellent reliability with various fuels ranging from biomass …
Author: Panagiotis Grammelis, Emmanouil Karampinis, Aristeidis Nikolopoulos
The proportion of combustible material such as biomass within the bed is normally only around 5%. The primary driving force for development of fluidized bed combustion is reduced SO2 and NOx emissions from coal combustion. Bubbling fluidized bed (BFB) combustors are of interest for plants with a nominal boiler capacity greater than 10 MW th.
Bubbling Fluidized-Bed Boilers Circulating Fluidized-Bed (IR-CFB) Boilers Drawing upon our extensive technical expertise and operating experience, B&W developed the Internal Recirculation Circulating Fluidized-Bed (IR-CFB) boiler which is the technology of choice for power plant owners seeking economy, reliability and flexibility.
Ultra-Supercritical Circulating Fluidized Bed (CFB) Boilers. 660 MWe for lignite B, higher for hard coal, for low-grade and difficult-to-burn fuels such as anthracite, lignite, petroleum coke, oil shale, discarded coal and biomass, GE offer circulating fluidized bed technologies with different arrangements suited to fuel .
Fluidized Bed Combustion (FBC) “Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels.” A bed of solid particles is said to be fluidized when the pressurized fluid (liquid or gas) is passed through the medium and causes the solid particles to behave like a fluid under certain conditions.
17/7/2019· ANDRITZ has received an order from Toyo Engineering Corporation (TOYO), Japan, to deliver a PowerFluid Circulating Fluidized Bed boiler with flue gas cleaning system for a new biomass power plant to be built in Ishikari city, Hokkaido, for Ishikari Shinko New Energy Hatsuden Godo Kaisha.
ECOFLUID bubbling fluidized bed boilers form an important part of ANDRITZ bio-energy solutions and are used for steam and power generation from biomass and different alternative fuels, such as sludges, RDF, and residues.
University of Missouri Missouri, USA. B&W designed, engineered and supplied a biomass-fueled bubbling fluidized bed (BFB) boiler to replace the University of Missouri’s existing coal-fired boiler, and to provide the university campus with electricity and steam for heating and other uses.
Circulating fluidized bed technology can be implemented in many different fields ranging from oil and gas to power stations. This technology is highly sought after due to its numerous benefits. Some of the popular applications of circulating fluidized bed are circulating fluidized bed scrubber and circulating fluidized bed gasification system.
Bapat DW, Kulkarni SV, Bhandarkar VP (1997) Design and operating experience on fluidized bed boiler burning biomass fuels with high alkali ash. In: Preto FDS (ed) 14th International Conference on Fluidized Bed Combustion. ASME, New York Google Scholar
Based on the current circulating fluidized bed boiler technology, ZBG design biomass fired boiler that can adapt to burn biomass fuels, has owned the same advantages like other cfb boiler, such as high efficiency, good combustion performance, energy saving. The customer is satisfied with its low emission and stable operation.
Click to view on 2:5330/1/2018· - Largest staff of most experienced fluidized bed experts - More R&D resources and capability than all others Technologies we provide include:-- Circulating Fluidized Bed (CFB) Boiler - Bubbling Fluidized Bed (BFB) Boiler - Biomass …
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