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Spray Dryer
Spray drying is transformation of feed from a fluid state into dried particulate form by spraying the feed into a hot drying medium. It is a continuous particle-processing drying operation. The feed can be a solution, suspension, dispersion, emulsion or slip. The dried product can be in the form of powders, granules, or agglomerates.

Feed is finely atomized and is introduced in the drying chamber along with hot air. The mixture of atomized feed and hot air moves towards the air exhaust of drying chamber. The time taken by this mixture to travel upto air exhaust is called as residence time of drying. During this residence time, the feed droplets loose its moisture to the hot air and are converted into dry powder particles.

The dry powder falling on to the conical portion of drying chamber slides down to bottom of drying chamber with the assistance of vibrators/knockers and is collected in collection bag/bottle through the rotary valve located at the bottom of drying chamber.

The air leaving the drying chamber entrains some of the dry powder which is recovered in the cyclone separator and collected through rotary airlock. The air leaving the cyclone separator still has traces of dry powder, which is further recovered by scrubbing in wet scrubber or passing it through bag filter. Air from cyclone or bag house is sucked by induced draft fan


Mas Project India manufacture Spray dryer with following types of drying chamber

Salient Features of Mas Project India designed Spray Dryer

Fluid Bed Dryer
To avoid channeling effects and to ensure true fluidization, vibration is required, so Mas Project India is used Vibrating fluid bed dryers in the powder manufacturing unit. After introducing a fluid bed into the spray drying processing, Mas Project India has recognized that there was a distinct difference in the structure of fluid bed treated powder compared with powder from a pneumatic conveying system. The fluid bed treated powder was distinctly coarser and free flowing. The reason for better flow ability was a partial agglomeration.

Mas Project India manufactures Fluidized Bed dryer in 2,3 or 4 sections. In double section FBD 1st section is for heating and 2nd is for cooling. In Triple section FBD 1st sections are for heating and 2nd and 3rd are for cooling. In four sections FBD 1st and 2nd section for heating and 3rd and 4th are for cooling.

Vacuum Band Dryer
Vacuum Belt dryer are especially efficient for the continuous drying of temperature sensitive products. The vacuum inside this type of dryer lowers the aggregate level for evaporation so that efficient drying can be accomplished at lower temperature. This ensures that sensitive foodstuffs can be dried very gently and efficiently. It comprises a vacuum chamber housing a number of conveyor bands which pass over platens heated by steam. These units are supplied with a range of capacities.


Mas Project India designs and supply malted milk plant. Malted milk food is the product obtained by mixing Milk with malt extract and cereal grain. The paste formed is evaporated and vacuum dried to manufacture malted milk powder. The scrapped type evaporator with specially designed agitator shall be used to concentrate the product upto 70-80% TS then it is dried in Vacuum Band dryer.
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