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circulating fluidized bed cfb coal

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.

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Introduction of WNS gas / oil fired steam boiler:

WNS series horizontal internal combustion boiler 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:

1. 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.

2.Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.

3. 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.

4. 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.

Circulating Fluidized Bed (CFB) Boilers | Boile

Cited by: 6 Circulating fluidized bed (CFB) boilers feature the fast fluid bed which is formed in the whole furnace (combustor), and particles are collected in a cyclone and recirculated into the furnace. Therefore higher combustion efficiency and furnace desulfurization/ denitrification efficiency than those of other types of fluidized bed boilers can be

Circulating fluidized bed combustion (CFBC) | Request P

Circulating fluidized bed (CFB) boilers technology meets today's market demand for utility-size boilers with capability for fire broad range of fuel qualities from low-grade high-ash fuels, good

Circulating Fluidized Bed Boiler | CFB Boiler | GE Pow

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 .

Circulating Fluidized Bed Co-Combustion of Coal a

The NOx emission from a circulating fluidized bed (CFB) boiler with 50 MW rated thermal output (50 MWth) during the cofiring of anthracite coal and pelletized corn stalk biomass was investigated.

Energy efficiency analysis of pressurized oxy-co

The flow diagram of the pressurized oxy-coal CFB power generation system is shown in Fig. 1 which is modified based on an in service 300 MWe CFB power plant. In the CFB boiler, Silica acts as the bed material and recycles in the bed , while the coal is continuously added into the dense phase region of the chamber to fluidize and combust.The required oxidants and fluidizing gas are provided by

Circulating Fluidized Bed - an overview | ScienceDirect Topi

Bruce G. Miller, in Coal Energy Systems, 2005. Circulating Fluidized-Bed Scrubbers. Circulating fluidized-bed (CFB) scrubbers are the least commonly used commercial option, and few or no systems are planned in the future (see Table 6-1).CFB scrubbers include dry and semi-dry systems [4].Commercial application of the dry CFB system is the more widespread of the two processes, and it can achieve

System Analysis on Supercritical CO 2 Power Cycle wi

May 14, 2019· Supercritical carbon dioxide (S-CO 2) Brayton power cycle is a competitive technology to achieve high efficiency in a variety of applications.However, in coal power applications, the CO 2 generated from coal combustion still discharges into the atmosphere causing a series of environment problems. In this work, an 300 MWe S-CO 2 power cycle with circulating fluidized bed (CFB) oxy-coal

World’s Largest Circulating Fluidized Bed Boiler Begi

When the Å agisza power plant began commercial operation in late June 2009, it marked the beginning of a new era in the evolution of circulating fluidized bed (CFB) technology. At the heart of

Comparison of Circulating Fluidized Bed Boiler a

Circulating Fluidized Bed (CFB) combustion boilers gives the flexibility for combustion of a wide range of coals and alternative fuel sources. All this without compromising efficiency and with reduced emissions. The key differences of the CFB boiler with the universally accepted Pulverised coal …

China CFBC technology - Circulating Fluidized B

File Size: 1MB 23-06-2015. Fluidized-bed combustion : Fluidized-bed combustion Circulating Fluidized Bed Boiler In a CFB boiler furnace the gas velocity is sufficiently high to blow all the solids out of the furnace. The majority of the solids leaving the furnace is captured by a gas–solid separator, and is re-circulated back to the base of the furnace.

Advantages of a Circulating Fluidized Bed Boil

Sep 06, 2015· The Circulating Fluidized Bed (CFB) technology offers definitely certain advantages over the conventional Pulverized Coal (PC). As with any system …

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