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producers of fluidized bed boilers capable of handling heavy ash load addition of lime stone sand

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) boiler working princip

CFB boiler working principle and How does the CFB boiler work can be get in this page, ZG is a circulating fluidized bed boiler manufacturer in China,With several years R&D, ZG boiler’s Circulating Fluidized Bed (CFB) boiler is characterized by its compatibility with a wide variety of fuels including: low-grade coal, biomass, sludge, waste plastics, etc

Fluidized Bed Boilers - for Companies - Red Vect

Conventional solid fuel power boilers burn the fuel in a fixed bed. In a fluidized bed boiler, hot air is blown at a high velocity up through a bed of sand, limestone, and ash causing the solid particles to fluidize, or behave like a liquid. Fluidization provides good mixing and allows for effective combustion when fuel is added.

Design and operating experience on fluidized bed boil

@article{osti_355813, title = {Design and operating experience on fluidized bed boiler burning biomass fuels with high alkali ash}, author = {Bapat, D W and Kulkarni, S V and Bhandarkar, V P}, abstractNote = {Burning of wood wastes, agricultural wastes, refuse and other biomass fuels for steam and power generation is having a strong revival in view of the high costs of fossil fuel and disposal

Fluidized Bed Combustion | Types and Advantages | Electrical

Mar 04, 2020· Fluidization is a method of mixing fuel and air in a specific proportion, for obtaining combustion. A fluidized bed may be defined as the bed of solid particles behaving as a fluid.It operates on the principal that when an evenly distributed air is passed upward through a finely divided bed of solid particles at low velocity, the particles remain undisturbed, but if the velocity of air flow is

Circulating Fluidized-Bed Boilers - Babcock & Wilc

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. In addition, load-following capabilities are attainable with B&W’s in-bed heat exchanger technology.

(PDF) Utilization of fly ash coming from a CFBC boiler

Utilization of fly ash coming from a CFBC boiler co-firing coal and petroleum coke in Portland cement Article (PDF Available) in Fuel 86(16):2625-2631 · November 2007 with 1,780 Reads

Fluidized Bed Combustion | Fluidized Bed Boiler |F

Fluidized Bed Combustion (FBC Boiler) “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.. Fluidization causes the transformation of the state of solid

Fluidized Bed Combustors for Biomass Boilers - AS

Typically 97% to 99% of all burnable carbon in the fuel stream is combusted, even hard-to-burn materials. Boiler thermal efficiencies can be as high as 87% or more. Although both BFB and CFB systems are effective with biofuels, CFB is especially suitable for large boiler load ranges.

Boiler Systems Flashcards | Quizl

In a stoker-fired boiler, combustion air delivered below the burning fuel bed. Urban Wood Fuels Fuels that include packaging materials, off-cuts from manufacturing, wood remainders from construction and demolition, yard trimmings, tree removal, and from land clearing.

Power Engineering 3B1 Chapter 2 Flashcards | Quizl

2. Sustain a stable ignition while establishing a char bed 3. Stabilize conditions during upsets in the black liquor feed 4. Produce extra steam as required by the process of for power production 5. Burn out the char bed when shutting down 6. Maintain furnace temperatures a. 1,2,3,4,5 b. …

Fluidized Bed Boiler - an overview | ScienceDirect Topi

Due to the bed material inside the boiler, fluidized-bed boilers have high heat transfer coefficients, utilize the entire boiler volume, have a uniform temperature distribution and have a low stable combustion temperature. Fluidized beds are capable of burning very wet fuels and fuel particles of sizes up to 80 mm (van Loo and Koppejan, 2006

Contact Us

zhulin@zozen.com

No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China

0086-510-68530066, +86-13506151292

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