Spray Dryer

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.

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

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

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.

Spray coolers can convert melted material into solid state. They have the technology of spray cooling systems. The molten matter is sprayed into the spray chamber where the matter is solidified. Cooling media is usually dehumidified cold air. The cooling media in these spray cooling systems is admitted into the Spray Chamber. The spray mist comes in intimate contact with the cooling media & gets converted into solid state.

AVM offers Customized Spray Cooling Systems with variety of Configurations.

Air Flow Configurations:

• Co- current.
• Counter- current.
• Mixed Flow.

System Configurations:

• Single Stage Spray Coolers.
• Two Stage Spray Coolers.
• Multi Stage Spray Coolers.

Liquid Atomizer Options:

• Single Fluid Nozzle.
• Two Fluid Nozzle.
• Rotary Disc Atomizer.

Air Cooling Systems Configurations:

• Air Dehumidifiers & Coolers - using utility like Chilled Water, Brine etc.
• Air Dehumidifiers & Coolers - using direct expansion of Refrigerant, Ammonia etc.

Fines Recovery Systems Configurations:

• Cyclone Separators – Mono, Twin, Quadruple etc.
• Bag Filters – Reverse Pulsejet, Mechanical shaking etc.

Optional Feature Configurations Of Spray Coolers:

• Heat tracing for feed line using hot water / steam / electricity as utility.
• Nozzle lance pre-heating, Heated secondary media for Two fluid nozzles.
• Re-circulation of exhaust gas for higher thermal efficiency.
• Safety accessories like Explosion vents with pressure shock resistant design for equipments, Vacuum breaker.
• Computerized control system through PLC / DCS & SCADA.