We undertake complete Fine Coal Handling Package comprising of
Silo Engineering, Extraction Arrangement, Metering and Pumping
Systems. This includes inert gas purging system, explosion vent valve, twin shaft agitator for fine coal bin bottom, volumetric screw conveyor, solid flow meter for weighing and pneumatic screw pump for conveying fine coal to burners.

We manufacture and supply Rotary Kiln Burners for firing Pulverised Coal, Pet Coke, Oil, Fuel Gas or any mixture of these fuels. Alternative / secondary fuel firing arrangement can be incorporated to suit individual plant. SMC Burner can be supplied for any fuel combination for any capacity in the range of 20 M KCal/HR. Upto 250 M KCal/Hr. For other technical details separate detailed brochure for SMC Burner is available on request.

In a Cement Industry, Hot Air is used generally for Drying of Slag, Raw meal and Raw coal. We manufacture and supply Coal / Oil / Gas Fired Hot Air Generators with vertical and horizontal design. Separate literature is available on request for Hot Air Generator.

We also have a special design for Fluidized Bed Hot air Generator, which is more suitable for using Coal of high ash content. Crushed Coal of approx. minus 10mm are fed to the Fluidized Bed Hot Air Generator through a suitable conveyor. Initially the bed is heated up using a pressure atomized fuel oil burner. Once the bed Temp is raised to sufficient heat, Charcoal is fed in to the bed to raise the bed Temp further to ignition temp of Coal. Now the Coal is fed in to the chamber and coal starts burning and volatiles burn in the free board and the Hot Gas of about 900 to 1000 deg C is produced. Bed Temp is controlled by varying the feed rate of coal. A high Temperature switch with an alarm automatically cuts off coal feed, if the bed Temp goes too high. The hot Gases are first made to pass through 2 to 3 sharp changes of direction to trap the fly ash in the Gases. The bottom lump ash is removed through an ash drain in the bottom of the sand bed. This drain discharges the ash through a pipe to the ash handling system.

Any material can be dried quickly if maximum surface of the material is exposed to hot environment.

Fluidization principle is used in Fluidized bed Dryer for drying Solid particle in size from 15mm down.

The Fluidized Bed Dryer consists of Two Cylindrical body, separated by a Distributor plate. The Distributor plate has a number of Air Nozzles through which Hot Air is made to pass.

The bottom body generally known as “Wind Box” serves as the Air distribution Chamber. The Hot air required for drying, may be received from a separate Hot Air Generator or from a Combustion Chamber attached to the Wind box.

The material to be dried forms a fluidized bed due to the aeration of the same and thus maximum surface comes in contact with the Hot air being supplied by the nozzles. Material is fed from one end of the fluid bed, moves along the bed in a fluid state to the other end of the fluid bed. The Dried material leaves the Dryer via the discharge chute in to the Vibrating feeder/conveyor.

After interacting with the material, the Air looses its heat to the material and is made to pass through a dust collector before venting in to atmosphere. The Upper body is so designed that the material does not carry along with the exhaust Air.

Like a Fluidized Bed Dryer, the Fluidized Bed Cooler also uses the principle of Fluidization for maximum exposure of surface for cooling action. These are simple, compact units designed to cool hot solid materials quickly down to any temperature above ambient.

The Fluidized Bed Cooler consists of Two Cylindrical body, separated by a Distributor plate. The Distributor plate, which is the top plate of the “Wind Box”, has a number of Air Nozzles through which Cold atmospheric Air is admitted to fluidize the material.

The material to be Cooled, forms a fluidized bed due to the aeration of the same and thus maximum surface comes in contact with the cold air being supplied by the nozzles. The bed contains number of tubes carrying water in it. The spacing of the tubes is such that it provides maximum heat transfer area without interfering the fluidization.

Material to be cooled is fed from one end of the fluid bed, moves along the bed in a fluid state to the other end of the fluid bed. The Cooled material leaves the Cooler via the discharge chute in to the Vibrating feeder/conveyor. Cold Water flows in the counter current through the tubes that are completely immersed in the material bed.

This is a system where no direct contact of cold water occurs with the material. Most of the heat is removed by the cold water, air only assists in keeping the material in fluid state. The cooling water can be used in another process or recirculated via a cooling tower/ spray pond.