The final product obtained from spray dryer is in powder form. By varying the operating parameters of the spray dryer the required powder characteristics such as moisture, particle size, bulk density, flowability, Particle Morphology etc. can be achieved.

Besides manual and semi-automatic systems we offer PLC & SCADA based systems for easy operation and monitoring of spray dryer. Multiple systems can be operated from a single computer thus reducing the manpower requirement. All the important parameters like temperatures, pressures, flow etc. are recorded and displayed in the system and can be retrieved at any given moment.

Capacity: The spray dryers having water evaporation capacity ranging from 1kg/hr to 18,000 kg/hr can be offered and supplied.

This consists of a vertical pin type rotary and stationary cages. The wet feed is fed at the center of the rotating cage, where it comes in contact with hot air. The rotating cage disperses the feed while drying.

Due to very low residence time in the range of 0.5 to 2 seconds in the flash dryers, heat sensitive products can be easily dried without degradation.

Particle size of the final product can be controlled by installing a particle size controller which recycles the larger particle size back to the agitator and allows only the pre-determined size particles to be discharged as product.

Rotary dryers are used for drying wet powders and cakes, which are easily breakable and dispersible. The rotary dryer consists of a rotating drum with angle lifting blades which lift the feed as the drum rotates and showers it in the stream of hot air flowing through the drum.

The rotary dryers can be used as calciners using direct or indirect firing.

GMP plants are offered for pharmaceutical, food, and biochemical applications.

The process air is supplied to the bed through a special perforated distributor plate and flows through the bed of solids at a velocity sufficient to support the weight of particles in a fluidized state. Bubbles form and collapse within the fluidized bed of material, promoting intense particle movement. In this state, the solids behave like a free flowing boiling liquid

Advanced method of drying wet/semi wet solids
Unlike in Tray Drying every solid particle is floating in the HOT STREAM of Air which is blown from down to up creating material layer in fluidised state
Almost every wet particle directly receives the heat energy from hot Air resulting in uniform and quick drying

Features of RAJ Paddle Dryer :
 

Low running cost – contact dryer.
Continuous production machine without human touch.
Ideal for solvent recovery.
Suitable for Crystalline material.
On-line particle size reduction – no separate pulverizer required.
Factory assembled & tested.
Compact construction – less floor area.
Choice of heating medium – steam, hot water.
Minimum exhaust air quantity – no elaborate air cleaning equipment needed.
Absence of high speed rotating parts – less breakdowns.
Special paddle form – ploughing and self cleaning action.
Initial particle size is maintained.