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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To find out more, including how to control cookies, see here: To start with the bed material is sand. You are commenting using your WordPress.
You are commenting using your Twitter account. In the cyclone the heavier particles separate from the gas and falls to the hopper of bliler cyclone. This bed material is fluidized by primary air a part of combustion air. Hence the name Circulating Fluidized Bed combustion. Bed is where the coal or fuel spreads. Notify me of new comments via email.
Some portion is lost in the ash during the operation and this has to be made-up. For high Sulphur coals Limestone addition to the bed material reduces SO 2 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.
Bed Material To start with the bed material retails sand. The diagram below shows the schematic of a CFB boiler. Bellows provide air to the coal from the bottom bokler the bed. This lifts the bed material and the coal particles and keeps it in suspension.
Author archive Author website. The coal combustion takes place in this suspended condition. Secondary air fans provide pre-heated Combustion air. Fill in your details below or click an icon to log in: Air supply is from under the bed at high pressure. Thermodyne Boilers Manufacture small boilfr Boilers more info visit: In coal fired boilers the ash from the coal itself will be the makeup material. Fluidized Bed At the bottom of the boiler furnace there is a bed of inert material.
Leave a Reply Cancel reply Enter your comment here Nozzles in the furnace walls at various levels distribute the Combustion air in the furnace.
How Circulating Fluidized Bed Boilers Work?
How is it different? But the basic principles remain the same. Follow me on Twitter My Tweets. Circulating Fluidized Bed combustion gives the flexibility to burn a wide range of fuels with optimum efficiency and reduced emissions.
ISGEC | CFBC Boilers | Circulating Fluidised Bed Combustion Boilers
Do not waste Energy on steam leakage in boiler. CFBC uses crushed coal of 3 to 6 mm size.
Primary air fans provide the preheated Fluidizing air. From storage hoppers Conveyer and feeders transport the coal to feed chutes in the furnace. Different boiler derails adopt different methods of cyclone separationthe fluidizing nozzles etc. This is one way of burning pulverised coal in electricity generation plant.
How Circulating Fluidized Bed Boilers Work?
This requires only a crusher not a pulverizer. Start up is by oil burners in the furnace. Fluidized Bed combustion is something similar to this.