Presented at National Boiler Workshop – Introduction to CFBC Boilers by Satyanarayana Senapathi, VP Anjani Steels. ISGEC – CFBC boilers are easy to operate. ISGEC CFBC boiler has high residence time, fly ash recirulation, high turbulence and electrostatic precipitator type. Y Cube Engineered Solutions Private Limited offering CFBC Boiler in Goregaon East, Mumbai, Maharashtra. Get contact details, address, map on Indiamart.

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This lifts the bed material and the coal particles and keeps it in suspension. Follow me on Twitter My Tweets.

How Circulating Fluidized Bed Boilers Work?

If You are looking industrial chimney for a boiler, then You will Call Us: The coal combustion takes place in this suspended condition.

Bed is where the coal or fuel spreads.

CFBC uses crushed coal of 3 to 6 mm size. This requires only a boielr not a pulverizer. Leave a Reply Cancel reply Enter your comment here But the basic principles remain the same. Fill in your details below or click an icon to log in: Primary air fans provide the preheated Fluidizing air.

To start with the bed material is sand. Air supply is from under the bed at high pressure. Ash spouts in the furnace detils the ash from the bottom of the furnace.

Bellows provide air to the coal from the bottom of the bed. How is it different? It adopts a process different from Pulverized Fuel where coal is milled to fine powder similar to talcum powder and fired. At the bottom of the boiler furnace there is a bed of inert material. Secondary air fans provide pre-heated Combustion air. Blog Statshits. To find out more, including how to control cookies, see here: Different boiler manufacturers adopt different methods of cyclone separationthe fluidizing nozzles etc.


How does this technology work?

When firing bio fuels with very low ash content sand will be the makeup bed material. Cfbf is biler Fluidized bed. Nozzles in the furnace walls at various levels distribute the Combustion air in the furnace. By continuing to use this website, you agree to their use. Some portion is lost in the ash during the operation and this has to be made-up. Do not waste Energy on steam leakage in boiler. Hence the name Circulating Fluidized Bed combustion. You are commenting using your Facebook account. In the cyclone the heavier particles separate from the gas and falls to the hopper of the boi,er.

The diagram below shows the schematic of a CFB boiler. Bed Material To start with the bed material is sand. The hot gases from the cyclone pass to the heat transfer surfaces and go out of the boiler. From storage hoppers Conveyer and feeders transport the coal to feed chutes in the furnace. This bed material is fluidized by primary air a part of combustion air. Menu Skip to content About Contact. Thermodyne Boilers Manufacture small industrial Boilers more info visit: Notify me of new comments via email.


This returns to the furnace for recirculation. You are commenting using your Twitter account. Email required Address never made public. You are commenting using your WordPress.

At adequately high air speed, the bed acts as a fluid resulting in rapid mixing of the particles. Special design of the air nozzles at the bottom of the bed allows air flow without clogging.

This is one way of burning pulverised coal in electricity generation plant.

What is CFBC boiler? – Thermodyne Engineering Systems

Fluidized Bed At the bottom of the boiler furnace there is a bed of inert material. Circulating Fluidized Bed combustion gives the flexibility to burn a wide range of fuels with optimum efficiency and reduced emissions. Circulation Fine particles of partly burned coal, ash and bed material are carried along with the flue gases to the upper areas of the furnace and then into a cyclone.

For high Sulphur coals Limestone addition to the bed material reduces Dftails 2 boilre. What are the advantages?

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