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Industrial Dryers

We are a leading Manufacturer of heatless dryer, heat reactivated dryer, compression type dryer and low pressure air dryer from Vadodara, India.
  • Heatless Dryer
Heatless Dryer

Heatless Dryer

Rs 1 Lakh  / UnitGet Best Price
Usage/ApplicationChemical Industry, Automobile
Dryer TechnologyDessicant
Dryer BrandAirro Engineering
Minimum Output Dew Point-40 C
Voltage220 - 230 V AC
Capacity100 CFM - 3000 CFM
Dryer TypeRegenerative Desiccant Dryer
Wet incoming compressed air or gas is passed through a desiccant bed; the desiccant adsorbs its moisture. After some time of operation, this desiccant gets saturated and needs regeneration. Reactivation or regeneration of desiccant is then necessary to drive-off the adsorbed moisture and to re-store its original adsorptive capacity. This is accomplished via purging the adsorbent by dry air or gas at atmospheric pressure and temperature in reverse direction.

Actual Operations:
  • Heatless Drying Unit has two towers filled with the desiccant for continuous drying operation. At a time, one tower is used for drying while the other tower is reactivated simultaneously. After a fixed time of interval, the drying towers get changeover automatically by operation of sequence timer and interconnected valves.
  • Referring to the flow diagram, assume that the left tower is under drying and the right tower is under reactivation. Wet air or gas enters the tower from bottom side, passes up through the desiccant and comes out from the top. A small bleed flow is split from the exit of left tower and enters the right tower at atmospheric pressure. This bleed air pick-up the moisture from the desiccant and vented out to the atmosphere. After complete reactivation of desiccant, direction of control valves is reversed to place the left tower on reactivation and right tower on drying.

Features:
  • Low initial installation and operating cost.
  • High performance and almost Zero maintenance cost.
  • Low-temperature operation which reduces corrosion of towers.
  • Only single phase electric power is required.
  • Desiccant life around 3 – 5 years.


Dimensions:

S. No. Capacity Line Size Approximate
Space Requirement
CFM NB (MM) Length (mm)
Height (mm)
AHLD 01 10 15 500 500 1000
AHLD 02 20 15 600 600 1000
AHLD 03 30 25 600 600 1500
AHLD 04 50 25 800 800 1500

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  • Heat Reactivated Dryer
Heat Reactivated Dryer

Heat Reactivated Dryer

Rs 2 Lakh  / UnitGet Best Price
BrandAirro Engineering
Dryer TypeRegenerative Desiccant Dryer
Usage/ApplicationIndustrial
Capacity5 Nm3/hr to 5000 Nm3/hr
MaterialMS
Surface FinishPolished
Max Temperature220 degree C
Pressure10 Bar
Dew Point-60 to -80 degree C
Theory of operations:
  • Heat reactivated dryer are used when one needs the air of very low dew point. In this design, desiccant is regenerated at the higher temperature with little dry air purge. Due to dry air purge and thermal regeneration, residual moisture loading on desiccant becomes low and this gives low dew points.
  • The drying unit has 2-vessels filled with activated alumina desiccant. One vessel remains in drying cycle for 4-hours while another vessel is simultaneously regenerated at atmospheric pressure. Around 3 to 5% flow of air dryer capacity is used as the purge for regeneration. Electrical heaters are provided in a central finned stainless pipe in drying vessels. Heating cycle is for 2-hours and in this time desiccant temperature increase up to 100 to 150-degree celsius. at this temperature regeneration is complete. 

Features:
  • A fully automatic unit requiring no attention of the operator.
  • Heaters switch on/off and all valves operation is fully automatic.
  • Low purge air requirement as compared to heat fewer type dryers.
  • Counter-current preheated dry air purge provides maximum removal of adsorbed moisture with minimum gas purge loss.
  • As heating is done desiccant life increases because moisture is removed effectively due to heating.

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  • Compression Type Dryer
Compression Type Dryer

Compression Type Dryer

Rs 7.5 Lakh  / UnitGet Best Price
Dryer TechnologyDessicant
Minimum Output Dew Point-40 C
Usage/ApplicationIndustrial
MaterialMS
Surface FinishColor Coated
Warranty12 months
Capacity300 Nm3/hr to 2000 Nm3/hr
Dryer BrandAirro Engineering
Theory of operations:
  • In HOC type dryer, hot air at 120-degree Celsius to 140-degree Celsius from Compressor discharge is directly used for the desiccant regeneration. Running cost of this dryer is virtually NIL. It has two drying towers filled with the Activated alumina or Molecular sieve desiccant and they alternate in the process every 4-hour automatically.
  • Compressed air directly from air compressor discharge is taken to air dryer inlet through pipelines at 130-degree Celsius (Min) temperature. This hot air is passed one drying vessel were saturated desiccant is regenerated by this high-temperature air. After picking up moisture from the bed, this air is cooled in an intermediate cooler. Here moisture is condensed and removed by an auto drain trap. At 40-degree Celsius temperature, this air passes through second drying vessel where moisture gets absorbed and dry air comes out. Cycle time is 4-hours regeneration and 4-hours drying. After 4-hours changeover of vessels takes place. In the regeneration cycle heating of the bed is only for 2-hours and thereafter the bed is cooled by dry air. Dry air is cooled to 40 degree Celsius temperature before going out of the air dryer.

Features:

  • No loss of compressed air in the purge. It is a no purge loss design.
  • Maintenance is easy and simple as there are no heaters and no other moving parts except 4 way valves.
  • Fully automatic, continuous operation without any attention of the operator.
  • Negligible operating cost. It neither requires electric power for regeneration nor there does any purge loss of compressed air.

Dimensions:
S.No. Capacity Line Size Space Required
CFM NB (mm) Length (mm) Width (mm) Height (mm)
1 300 50 2000 1500 2200
2 400 50 2000 1500 2200
3 500 65 2000 2000 2200
4 600 65 2000 2000 2400
5 750 80 2500 2000 2400

 

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  • Low Pressure Air Dryer
Low Pressure Air Dryer

Low Pressure Air Dryer

Rs 4.5 Lakh  / UnitGet Best Price
Usage/ApplicationChemical, Pharmaceutical
Dryer TechnologyDessicant
Voltage220 V
Capacity250-1750 Nm3/hr
BrandAirro Engineering
Working Pressure6-10 Bar
Max. Inlet Temperature45 degree C

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