circulating fluidized bed

Industrial boilers

Product thermal capacity: 4-35 t/h

Working pressure: 1.0-2.5 MPA

Outlet temperature: 184-350 ℃

Available fuel: natural gas, coke oven gas, bio-gas,liquid propane gas, diesel, heavy oil, light oil, crude oil

Available industries: Petroleum, chemical, chemical fiber, pharmaceutical, textile printing and dyeing, building materials, wood processing, vegetable oil processing and other industries

  • Product introduction
  • Technical advantages
Introduction

circulating fluidized bed have a three-pass round coil structure. A conical coil is used for the effective protection of the furnace wall at the boiler end. This product is equipped with an advanced combustion device and is fully automated in operation. After the burner ignites the fuel, flame fills the round coil tubes and transfers heat by radiation through the tube wall (first pass). The high temperature flue gas gathers at the back door and then turns to the convection tubes section (second pass), where heat transfer takes place by convection. The flue gas gradually cools down here and flows to the front door, where it is reversed and goes into the third pass. After that, it enters into the chimney through the economizer and is released into the atmosphere.


circulating fluidized bed.This type of heater is delivered as a whole, and is installed on site, it only needs to connect thermal gas(oil) piping and electricity to start operation. The heater has four heating areas: furnace radiation heating area, the first convection tube bundle heating area, the second convection tube bundle heating area and economizer (waste heat boiler).

Digitized manufacture
  • The laying-off of steel tube adopts CNC 3D laser cutting machine.
  • The manufacture of round coil tube adopts CNC coil tube automatic production line. Once-forming and no need for plastic .
Full argon arc welding
  • The tube butt adopts argon arc welding technique and the seams will be done x ray real-time imaging, preventing unqualified seams from entering coil production line .
Easy operation
  • Heater is wholly assembled before delivery, it is easy for installation, debugging and operating.
  • Fully automatic operating, burning, liquid level of high level tank, outlet temperature and flow rate are adjusted automatically and self-protected.
  • The inlet and outlet with end flanges and flanged cover structure facilitate the installation and layout of tubeline in boiler house.
Less fuel consumption
  • Internal side adopts good insulation material, outside uses stainless steel plate, which can mostly reduce heat lost and make working environment better.
  • Multilayers closely spaced tube bundle and steel rod is used to seal and fix, completely eradicating short circuit of flue gas.
  • Before delivery, the residue moisture is removed completely, so the system draining period is reduced to 2 days from 12 days.
Safely operation
  • The inner coil tube has bigger flow rate, so it is more stable under high temperature operation.
  • Conical coil effectively protects the furnace wall at the end of heater and burner on the top.
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Fluidized bed combustion - Wikiped

2019-6-14 · Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels.. In its most basic form, fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials (sand, limestone etc.) through which jets of air are blown to provide the oxygen required for combustion or gasification.

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Circulating Fluidized-Bed Boilers - babcock.c

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. In addition, load-following capabilities

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DESIGN OF CIRCULATING FLUIDIZED BED BOILERS

Circulating Fluidized Bed Boiler Design: Gain a thorough understanding of the best design methods of circulating fluidized bed boilers. Design of Circulating Fluidized Bed Boiler Components and Systems: Learn all the techniques used to design CFB boiler equipment and systems including furnace, cyclones, economizers, superheaters, reheaters, loop seals, expansion joints, refractory, and L-valves.

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circulating fluidized bed - an overview | ScienceDirec

A circulating fluidized-bed (CFB) pyrolyzer, shown in Figure 3.9(b), works on the same principle as the bubbling fluidized bed except that the bed is highly expanded and solids continuously recycle around an external loop comprising a cyclone and loop seal.

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Technology Overview: Circulating Fluidized-Be

COMPARISON BETWEEN THE CONVENTIONAL FLUIDIZED BED AND THE LURGI CIRCULATING FLUID BED FOR THE COMBUSTION OF COAL Criterion Conventional (bubbling) fluidized bed Circulating fluidized bed Heat exchange surface Can/so lids contacting Pressure drop Partial load Load following Bed material Combus tion e fficiency Coal crushing Excess air ratio

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Circulating Fluidized Bed (CFB) Boilers Market Outloo

Global Circulating Fluidized Bed (CFB) Boilers market is expected to continue growth despite challenging oil and gas industry situation amid low prices. Circulating Fluidized Bed (CFB) Boilers market outlook analyses strategies and opportunities for the market from 2019 to 2025

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Circulating fluidized bed - Wikiped

2019-6-6 · The circulating fluidized bed (CFB) is a developing technology for coal combustion to achieve lower emission of pollutants. By using this technology, up to 95% of pollutants[1] can be absorbed before being emitted to the atmosphere.

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circulating fluidized bed – Sumitomo SHI

Circulating Fluidized Bed (CFB) Boiler Technology has increased its world-wide presence principally due to its highly-desirable fuel flexibility feature combined with significantly reduced air emissions, particularly SOx, NOx and even CO2.

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Circulating Fluidized Bed, Circulating Fluidized

Alibaba.com offers 1,486 circulating fluidized bed products. About 44% of these are electricity generation, 20% are boilers, and 1% are refractory. A wide variety of circulating fluidized bed options are available to you, such as natural circulation, once through.

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Fluidized Bed Combustion | Fluidized Bed Boiler |FB

2019-3-13 · Fluidized Bed Combustion is the ignition of a solid fuel under the conditions mentioned above.. We, At Thermodyne, Boiler Manufacture in India, We design and manufacture Boilers with Bubbling Fluidized Bed Combustion (BFBC) Circulating Fluidized Bed Combustion (CFBC).; Bubbling FBC is used for Fuels with lower heating values such as Rice Husk.. Under such sort, the main factors

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Circulating Fluidized Bed (CFB) - HarbisonWalke

Circulating Fluidized Bed (CFB) Circulating fluidized beds (CFBs) are known to be compliant to current emission rate legislation without the capital expenditures of adding selective catalytic reduction (SCR) or flue-gas desulfurization (FGD).

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