AIR HEATERS / GAS HEATERS / HOT AIR GENERATOR SYSTEMS AVM offers wide range of customized Heating Systems with variety of Configurations.

Types of Indirect Heated Air / Gas Heating Systems Offered :

• Multiple Concentric Shells Type.
• Shell & Tube Type.
• Multi - Coils in Shell Type.
• External Recuperator Type.
• Tube Bundle over Combustor Bed.
• Finned Tube Type Air Heater.

Types of Direct Fired Air / Gas Heating Systems Offered :

• Single Shell Combustion Chamber.
• F.B. Combustor.
• Multiple Concentric Shell all metal construction (Without Refractory Lining).
• Concentric Shell Type With Refractory Lining.
• Duct Mounted.

Operating Capacities of Heating Systems :

• Air Flow Rates up to 150, 000 Nm^3/hr. Higher flow rates can also be offered.
• Heated Air Temperatures up to 690 °C for Indirect Type.
• Heated Air Temperatures up to 1500 °C for Direct Fired Type.

Types of Fuels / Heating Media for Heating Systems :

• Liquid Fuels: HSD, Light Oil, Heavy Oil, SKO etc.
• Gaseous Fuels: LNG, CNG, Propone, LPG, Producer Gas, Bio Gas etc.
• Solid Fuels: Bio-waste, Saw Dust, Wood Chips, Coal, Rice Husk, Briquettes etc.
• Heating Media: Steam, Hot Oil, Thermic Fluid, Electricity etc.

EXHAUST EMISSION / POLLUTION CONTROL / FINES RECOVERY SYSTEMS

AVM offers customized Systems exhaust emission / pollution control / fines recovery systems with variety of Configurations.

Bag Filters & Dust Collection Systems :
AVM offers Reverse Pulse Jet type Bag Filters for Industrial applications in several customized configurations.

• Pulsing Configurations : On-Line Pulsing, Modular Off-Line Pulsing.
• Flow Rates : As per system requirement.
• Operating Temperature Range : Up to 260°C.
• Housing Type : Cylindrical Housing, Rectangular Housing.
• Air Entry Configurations: Hopper entry with side / central distribution, Tangential entry.
• Plenum Configurations: Top Access, Walk through etc.
• Electrical heat tracing for bottom hopper.
• Cleaning In Place system ( CIP) for special applications.
• Safety Accessories like Fire fighting system, Explosion vents, Antistatic construction etc.
• Air Ingress system for filter bags protection against temperature surges.

Bag filters with Mechanical shaking arrangement can also be offered.

Cyclone Separators :

• Mono, Twin, Quadruple, Multiple Cyclones depending on system requirement.
• Tangential, Wrap Around Inlet configurations.
• Distributed Inlet & Outlet configurations for Multiple Cyclones.

Wet Scrubbing Systems :

• Direct Contact Spray Type Ventury Scrubbers.
• Droplet Separators.
• Adjustable area ventury type with manual / automated adjustment.
• Scrubbers with tower packing, saddle packing, demister mesh packing.

AVM offers wide range of customized Systems with variety of Configurations.

Spray Cooler Technology is a process to convert Melt into solid state by Spraying into Spray chamber. Cooling media is usually dehumidified cold air. The cooling media 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 :

• 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.

Rotary Calciners are used for calcining of the material at high temperature. The Rotary Calciner comprises of rotating shell supported on rollers / tyres and driven by means of suitable drive arrangement. The internals are suitably refractory lined to minimize the heat losses. The combustion chamber is used for producing hot gases required for the calcination and it is connected to the Rotary Calciner through a stationary hood. The feed material is fed into the calciner feed hood through Screw Conveyor at controlled rate. The materials to be calcined travel in counter current fashion within the Calciner and gets discharge through discharge hood.

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.

Fines Recovery Options :

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

Optional Features :

• Pulverizing of Feed / Product
• Feed Material Pre-Heating Arrangement.
• Rotary Cooler for cooling of calcined product.
• Pneumatic conveying systems for feed material and finish product handling.
• Computerized control system through PLC / DCS & SCADA.

AVM offers customized Allied Equipments / Systems with variety of Configurations. Blenders / Powder Mixers

• Equipments configured for Batch or Continuous Operation.
• Capacities as per system requirements.
• Paddle Type Blenders.
• Ribbon Type Blenders.
• Special Rotor Type Blendors.
• Double Cone Blenders.
• Double Shaft Paddle Mixers.
• Online Product Blenders with controlled liquid dosing as per system requirements.

Liquid Feed / Slurry Preparation Systems

• Agitated Reaction Vessels.
• Vessels with Heating, cooling, sparging mechanism.
• High Speed Blungers.

Material Handling Systems

• Double Flap Valves: Motorised / Counterweight type.
• Rotary Air Lock Valves : Drop Through / Blow Through type.
• Rotary Feeders.
• Screw Conveyors.
• Pneumatic Conveying Systems: Lean Phase Suction Type.
• Pneumatic Conveying Systems: Lean Phase Positive Pressure Type.

Cleaning In Place (CIP) Systems

• Single Tank System / Three Tank System.
• Motorised Winch system for large vessels cleaning.
• Wall flush nozzles for cleaning od ductings, equipments.
• Fully automated systems with PLC / DCS & SCADA.

AVM offers customized Allied Equipments / Systems with variety of Configurations. Blenders / Powder Mixers

• Equipments configured for Batch or Continuous Operation.
• Capacities as per system requirements.
• Paddle Type Blenders.
• Ribbon Type Blenders.
• Special Rotor Type Blendors.
• Double Cone Blenders.
• Double Shaft Paddle Mixers.
• Online Product Blenders with controlled liquid dosing as per system requirements.

Liquid Feed / Slurry Preparation Systems

• Agitated Reaction Vessels.
• Vessels with Heating, cooling, sparging mechanism.
• High Speed Blungers.

Material Handling Systems

• Double Flap Valves: Motorised / Counterweight type.
• Rotary Air Lock Valves : Drop Through / Blow Through type.
• Rotary Feeders.
• Screw Conveyors.
• Pneumatic Conveying Systems: Lean Phase Suction Type.
• Pneumatic Conveying Systems: Lean Phase Positive Pressure Type.

Cleaning In Place (CIP) Systems

• Single Tank System / Three Tank System.
• Motorised Winch system for large vessels cleaning.
• Wall flush nozzles for cleaning od ductings, equipments.
• Fully automated systems with PLC / DCS & SCADA.

Rotary Atomizers are used in Spray Drying for atomizing the feed into fine droplets. In Rotary Atomizers, the kinetic energy of wheel rotation is used for atomization of the liquid.

Droplet size of atomized liquid depends upon liquid properties, disc speed, disc configuration etc. Bulk density is also one of the critical product requirement of spray dried products. The desired results can be achieved by using different Atomizer wheel configurations and optimizing atomizer speed, optimizing relevant feed properties