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CONSTRUCTION
INDCON boilers are of class-1 welded construction and designed in accordance with IBR or any other international code.Strict quality control is maintained at all production stages expert shop supervision is provided to ensure finest workmanship. All welding seams are 100% radiographed to ensure durability and longer life. Hinged doors are provided at front and rear at the ends of the boiler to give easy access for inspection, cleaning and replacement of tubes |
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THE MECHANISM
The fuel is added to a bed of non-combustible particles like sand and is kept in constant movement by combustion air which is blown through from below. The mixed bed behaves as if it were a boiling liquid. It is compact fluidised. The normal operating temperature of fluid bed is 750 Deg.C. and at this low temperature the ash is not sintered or melted.The larger area of contact between fuel and oxygen of combustion air and good mixing gives intensive combustion. The larger quantity of heat held by the bed function as a thermal reservoir and levels out the variation in fuel quantity and moisture content. The fuel particles automatically remain suspended for longer period of time and swirl around in hot material of fluid bed until they burn out completely to ash |
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ADVANTAGES OF FLUIDISED BED COMBUSTION
 High thermal efficiency.
Low combustion temperature.
Low excess air.
Complete combustion of fuel.
Easy ash disposal.
Avoidence of clinkering or ash melting.
Reduced combustion area.
Redused fouling & corrosion of tubes.
No pollution of environment.
Safe & easy fully automatic operation.
Short erection & commisioning period.. |
OTHER BENEFITS
Lower cost of steam generation.
No Excise duty, if fuel is agrowaste.
Lesser payback period. |
AUTOMATIC WATER CONTROLLER
AWLC comprising of feed pump ON/OFF control, low water audible alarm & excess low water alarm with combustion cutout |
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