>> SPRAY DRYER

1. ROTARY ATOMIZER 2. NOZZLE ATOMIZER

Spray drying is the transformation of the feed from fluid sate into a dried particulate form by spraying the feed into a hot drying medium. The feed can either be a solution, suspension, emulsion or paste.

Features of the spray drying:

• Continuous & easy operation
• Consistent powder quality through out the operation.
• Applicable for heat sensitive product also.
• Wide natures of the slurries can be handled.

Applications:

>> SPRAY COOLER

1. ROTARY ATOMIZER 2. NOZZLE ATOMIZER

Spray Cooling is the transformation of the feed from fluid sate into a particulate form by spraying the feed into a cold medium. It is the reverse process spray dryer.

Features of the spray drying:

• Continuous & easy operation
• Consistent powder quality through out the operation.
• Close loop plant

Applications:

>> FLASH DRYER

Flash Dryer is used to dry the residual moisture from the centrifuged wet cake. Drying process is accomplished by contacting the wet cake with hot air. Disintegrator because of the high speed and centrifugal action disintegrates the wet cake into powder in hot medium. Hence evaporation takes place.

Features of the spray drying:

• Continuous & easy operation
• Consistent powder quality through out the operation.
• Low drying & initial cost.

Applications:

>> CYCLONE

Cyclone is a mechanical dust separator. The centrifugal force inside the cyclone creates the pressure drop and powder gets separated from the air, hence dust free air escapes to the atmosphere.

The limitations of the cyclone is very fine powder (below 10 microns) can not be trapped in the cyclone

Salient Features

• Optimally sized for the desired airflow rate.
• High dust concentration can be handled
• High separating efficiency (coarse dust).
• Settling vessel is provided to have highest powder separation efficiency.
• Cleaning window is provided with hinged door for easy cleaning.
• Air purging system (at settling vessel) is provided to prevent bridging.
• Low initial cost.
• Low maintenance required through out the life.
• High temperatures can be handled

• Collected material recovered dry for subsequent processing or disposal.

>> BAG FILTER

Recovery of particulate matter from exhaust gas is vital for any industry from two aspects

• To avoid pollution problems

• Recovery of finished product-increasing the plant yield

Salient Features

• Extremely high collection efficiency on both coarse as well as on fine particles.
• Relatively insensitive to gas-stream fluctuation.
• Filter outlet air capable of being re-circulated within the plant (for heat recovery purpose)
• Collected material recovered dry for subsequent processing or disposal.
• No problem with liquid waste disposal, water pollution or liquid freezing.
• Corrosion & rusting of the components usually not problems.
• Taylor made equipments.
• Relatively simple operation.

>> WET SCRUBBER

Wet Scrubber rely on the liquid spray to remove dust particles from the gas stream. Scrubber is also useful for the fume absorption hence very useful is fume extraction systems.

Salient Features

• High dust collection efficiency.
• Fumes also can be absorbed.
• Low maintenance cost.
• Low initial cost.
• Complete wetting of the product.
• Minimum product emission through exhaust.
• Ability to handle high temperature.

>> DUST EXTRACTION / FUME EXTRACTION

Main components used in dust and fume extraction are-

• Cyclone / Bag Filter / Scrubber
• Air Blower
• Ducting from various extraction points.