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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At the bottom of the boiler furnace there is a bed of inert material. By continuing to use this website, you agree to their use. Notify me of new comments via email.
Menu Skip to content About Contact. Circulating Fluidized Bed combustion gives the flexibility to burn a wide range of fuels with optimum efficiency and reduced emissions. CFBC uses crushed coal of 3 to 6 mm size.
How Circulating Fluidized Bed Boilers Work?
Start up is by oil burners in the furnace. If You are looking detalls chimney for a boiler, then You will Call Us: This requires only a crusher not a pulverizer.
The fluidised action promotes complete coal combustion at relatively low temperatures, and provides a means to transfer combustion heat efficiently from the bed to the steam tubes. To start with the bed material is sand. Fluidized Bed At the bottom of the boiler furnace there is a bed of inert material.
What is CFBC boiler? – Thermodyne Engineering Systems
Fill in your details below or click an icon to log in: This article series explains these issues. 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.
Fluidized Bed combustion is something similar to this. In the olden days blacksmiths used to heat the iron by placing it on a bed of coal. How does this technology work? Secondary air fans provide pre-heated Combustion air.
The coal combustion takes place detakls this suspended condition. 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.
Do not waste Energy on steam leakage in boiler. From storage hoppers Conveyer and feeders transport the coal to feed chutes in the furnace. Air supply is from under the bed at high pressure.
Hence the name Circulating Fluidized Bed combustion. In the cyclone the heavier particles separate from the gas and falls to the hopper of the cyclone. How is it different? Bed is where the coal or fuel spreads. Special design of the air nozzles at the bottom of the bed allows air flow without clogging.
You are commenting using your WordPress. Thermodyne Boilers Manufacture small industrial Boilers more info visit: But the basic principles remain the same. Primary air fans provide the preheated Fluidizing air.
Different boiler manufacturers adopt different methods of cyclone separationthe fluidizing nozzles etc. What are the advantages? At adequately high air speed, the bed acts as a fluid resulting in rapid mixing of the particles. When firing bio fuels with very low ash content sand will be the makeup bed material. Some portion is lost in the ash during the operation and this has to be made-up.
This is the Fluidized bed.
Author archive Author website. To find out more, including how to control cookies, see here: The coal is burnt in a bed of hot particles maintained biler flowing air. For high Sulphur coals Limestone addition to the bed material reduces SO 2 emissions. Nozzles in the furnace walls at various levels distribute the Combustion air in the furnace. The hot goiler from the cyclone pass to the heat transfer surfaces and go out of the boiler.
This bed material is fluidized by primary air a part of combustion air.
This is one way of burning pulverised coal in electricity generation plant. The diagram below shows the schematic of a CFB boiler.