Spray Dryers

New AVM offers customized spray dryers, mini spray dryers and spray drying systems in different configurations. The dryers are made to convert liquid solutions/suspensions/slurry/emulsions to powder, granules or agglomerates. The gross advantage of spray dryers is consistent product quality with better control on product parameters like product moisture, bulk density, particle size, dispersion, flow ability etc.

Air Flow Pattern Configurations :

• Co- current
• Counter-current
• Mixed flow

Combination of Systems Configurations:

Two Stage Spray Dryer - spray dryers followed by fluid bed dryer for drying products which require longer residence time & product conditioning post drying.
Three Stage Spray Dryer - spray dryers with Internal fluid bed followed by external fluid bed dryer for producing dust free agglomerates.

Liquid Atomizer Configurations:

Single Fluid Nozzle Atomizers.
The liquid feed is atomized into spray droplets by using pressure energy.

Two Fluid Nozzle Atomizers.
The liquid feed is atomized into spray droplets by using energy of secondary fluid like Compressed Air, Nitrogen etc.

Rotary Disc Atomizers / Rotary Atomizers.
In Rotary disc Atomizers, the kinetic energy of wheel is used for atomization.

Air Heating System Configurations :

• Direct Fired / Indirect Fired Air Heaters: using Liquid / Gaseous Fuels.
• Direct / Indirect Fired Air Heaters: using Solid Fuels, Agro Waste, Saw Dust, Rice Husk, Coal, Briquette etc.
• Indirect Air Heaters: Using Steam / Hot Oil / Thermic Fluid
• Electric Air Heaters: using electricity.

Product / Fines Recovery System Configurations:
Cyclone Separators – Mono, Twin, Quadruple, Multi etc.
Bag Filters – Reverse Pulsejet, Mechanical shaking etc.
Wet Scrubbers – Direct Contact Ventury, Adjustable Ventury, Packed scrubbers etc..

Optional Features Configurations:

• Rotating air brooms with dehumidified air.
• Roof cooling. Rotary atomizer Cooling. Nozzle Lance Cooling.
• Online Dosing & Blending system.
• Product Cooling & conveying system.
• Online gas induction system in feed liquid.
• Feed Preparation system.
• Closed Loop Systems / Self Inertized Systems with inert gas as process drying media.
• Solvent Recovery Systems.
• Cleaning in Place Systems.
• Heat Recovery Systems.
• CGMP Construction.
• Safety accessories like Explosion vents with pressure shock resistant design for equipments, explosion de-coupling, Mechanical flame diverter, Vacuum breaker, Fire fighting system
• Computerized control system through PLC / DCS & SCADA.

It's includes:

Two Stage Spray Dryer
This two stage spray dryer is equipped with fluid bed dryer for drying products which require longer residence time & product conditioning post drying.

Three Stage Spray Dryer
This three stage spray dryer has an internal fluid bed equipped with fluid bed dryer for producing free agglomerates.

Pilot Spray Dryer

AVM Pilot or mini spray dryer is an ideal tool for laboratory testing, Small-scale powder production requirements and is designed for an evaporation capacity ranging from 3 kg/hr to 60 kg/hr. The AVM pilot spray dryers comprise of Air heating section, Spray chamber, Cyclone separator, Bag filter liquid pumping system, liquid atomization system, air circulation blowers, Control Panel with Instruments.

AVM offers Pilot / Mini Spray Dryers with variety of Configurations.

Air Heating System Configurations:

• Direct Fired / Indirect Fired Air Heaters: using Liquid / Gaseous Fuels.
• Indirect Air Heaters: Using Steam / Hot Oil / Thermic Fluid
• Electric Air Heaters: using electricity.

Feed Liquid Atomization Options:

• Rotary Disc Atomizers.
• Two Fluid nozzles.
• High Pressure Nozzles.

Additional Features Configuration:

• 2 Stage Systems with Internal Fluidized Bed.
• Closed Loop Systems with inert gas as process drying media.
• Solvent Recovery System.
• Rotating air Brooms for sweeping chamber walls.
• Air Cooled Jacketed Chamber.
• Pre-dehumidification of Drying Air.
• Special Materials of Construction.
• CGMP construction.
• Computerized control system through PLC / DCS & SCADA.

Flash Dryer

We specialize in offering our clients flash dryers, which are widely demanded in the global market. In these flash dryers, wet feed is dispersed into the hot air where the material gets dried during conveying travel through the drying duct & separated in the Cyclones or bag filters. Some applications require pre-conditioning of feed by back-mixing of dry product or mixing with oversize particles tapped through particle classifiers installed at suitable locations on the drying duct.
AVM offers Customized Flash Drying Systems with variety of Configurations.

Material Feeding Configurations:

• Mono Screw Feeder
• Double Screw Feeder.
• Double Paddle Mixer for back mixing of dry product.
• Feed Bin with Lump Breaker.
• Volumetric feeder.
• Rotary Feeder.

Feed Disperser Configurations:

• Sling Fan.
• Cage Mill.
• Mechanical Scatterer.
• Chain Slinger.
• Ventury Feeder.
• Combinations of above.

Oversize Particle Classifier Configurations:

• Deflector Hood
• Ring Classifier

Air Heating System Configurations:

• Direct Fired / Indirect Fired Air Heaters: using Liquid / Gaseous Fuels.
• Direct / Indirect Fired Air Heaters: using Solid Fuels, Agro Waste, Saw Dust, Rice Husk, Coal, Briquette etc.
• Indirect Air Heaters: Using Steam / Hot Oil / Thermic Fluid
• Electric Air Heaters: using electricity.

Product / Fines Recovery System Configurations:

• Cyclone Separators – Mono, Twin, Quadruple, Multi etc.
• Bag Filters – Reverse Pulse jet, Mechanical shaking etc.
• Wet Scrubbers – Direct Contact Ventury, Adjustable Ventury, Packed scrubbers etc.

Optional Features Configurations:

• Product Cooling and Conveying Systems.
• Exhaust gases Recycling for better thermal efficiencies.
• Safety accessories like Static Jumpers, Fire Fighting Systems, Rupture Disc etc.
• Computerized control system through PLC / DCS & SCADA.

Agitated Swirl Flash Dryers

In these dryers, the wet feed is fed into the dryer housing by suitable feeding mechanism above the rotating swirl agitator. The hot air / gas stream is also admitted in the drying duct through specially designed distributor, admitting the air in swirling fashion. The material remains in agitated bed & dried material gets carried forward & separated in the Cyclones or bag filters. Some applications require pre-conditioning of feed by back-mixing of dry product.
AVM offers Customized Agitated Swirl Flash Drying Systems with variety of Configurations.

Material Feeding Configurations:

• Mono Screw Feeder
• Double Screw Feeder.
• Double Paddle Mixer for back mixing of dry product.
• Feed Bin with Lump Breaker.
• Volumetric feeder.
• Rotary Feeder.
• Specially design double shaft feeder followed by mono screw.
• Positive Displacement Screw Pump for Viscous liquid / Pastes.

Particle Classifier Options:

• Orifice Classifier.
• Rotary particle Classifier.

Air Heating System Configurations

• Direct Fired / Indirect Fired Air Heaters: using Liquid / Gaseous Fuels.
• Direct / Indirect Fired Air Heaters: using Solid Fuels, Agro Waste, Saw Dust, Rice Husk, Coal, Briquette etc.
• Indirect Air Heaters: Using Steam / Hot Oil / Thermic Fluid
• Electric Air Heaters: using electricity.

Product / Fines Recovery System Configurations:

• Cyclone Separators – Mono, Twin, Quadruple, Multi etc.
• Bag Filters – Reverse Pulsejet, Mechanical shaking etc.
• Wet Scrubbers – Direct Contact Ventury, Adjustable Ventury, Packed scrubbers etc.

Optional Features Configurations:

• Product Cooling and Conveying Systems.
• Exhaust gases Recycling for better thermal efficiencies.
• Safety accessories like Static Jumpers, Fire Fighting Systems, Rupture Disc etc.
• Water Cooled Dryer Agitator bearing housing for high temp. operation.
• Computerized control system through PLC / DCS & SCADA.