Air Knife System, Compressed Air Air Knife System, Raico Engineers, Mumbai, India

	AIR KNIFE SYSTEMS

Comparision of different design of Drying

Comparison of Ring Blower Assisted Air Knife System with High Speed Centrifugal Blower Assisted Air Knife System

Comparison of different design of Drying

Some Disadvantages of other Designs of Blower Based Air Knife

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Summary of some Application

Animation of some more Application

Some of Air Knife Applications

Beverage & Bottling Applications

1. Aluminum & Tin Cans
2. Jars & PET Bottles
3. Cleaning / Drying of Pouches
4. Glass Bottles
5. Crates & Trays
6. Bottles & Cans Drying System
more..

Food Applications

1. Meat, Poultry, Fish, Cheese, Frozen Foods
2. Food Molds
3. Crates, Trays & Conveyor Belts
4. Vegetables and Produce Drying/Cleaning
5. Candy and Confectionary
6. Food Packaging Applications
7. Conveyor Belts
8. Aluminum & Tin Cans
9. Jars & PET Bottles
10. Food / Vegetables Cleaning & Drying System
11. Others
more..

Pharmaceutical Industry Applications

1. Many Applications

Electronic Industry Applications

1. Precision Parts Drying (Cleaning Room/HEPA)
2. Critical Components (100% Dry)
3. Conveying Applications
more..

Engineering and Related Industries Applications

1. Parts Drying Industrial (Part Cleaning Systems)
2. Blow-Off
3. Cables / Extrusion profiles of Rubber Drying System
3. Metal Drying System
4. Plastic Drying System
5. Wires Drying System
6. Strands Drying System
7. Parts Cleaning & Drying Systems
more..

Many Other Interesting Applications

Comparison of Various Drying Systems

COMPARISION SUBJECT	HVLP AIR KNIFE SYSTEM (BLOWER BASED)	COMPRESSED AIR AIR KNIFE SYSTEM	THERMAL DRYING
Air Velocity	Available between 5000fpm-40000fpm	Available between 5000fpm-18,000fpm	Low Velocity Used
Noise Levels	Moderate	Low	Very Low
Capital Costs	Moderate	Higher : If you have to provide for air compressors	Moderate
Capital Costs	Moderate	Low : If spare compressor capacity is available	Moderate
Running Cost	Very Low	Higher	Higher
Maintenance	Negligible	Higher	Moderate
Product Protection	Air supply from blower is cleaner.no oil / moisture / dirt to contaminate	Untreated compressed air contains oil / moisture / dirt	Thermal drying can not be used for product / packing sensitive to heat
Post Drying Care	No specific care or cost involved	No specific care or cost involved	Extra caution and cost involved to handle product dried using this method because of heat
ADVANTAGES
a) PAY OFF	Very quick pay off in most cases within six months due to high savings	N.A	N.A
b) Production Speeds	Higher production speeds possible	N.A	N.A

Aproximation of capital Cost of different comparable systems

HVLP AIR KNIFE SYSTEM : 12” Air Knife + Blower + Connector & Hose = Rs.20, 000/-

Compressed Air Knife System : 12” Air Knife + Compressor + Pipe & Connector = Rs 60,000/-

Thermal Drying : 12” Heater + Blower = Rs.10, 000/-

Aproximation of running energy cost of different comparable systems

HVLP AIR KNIFE SYSTEM

   To run 12” knife with at 24,000FPM, 0.85kw Blower is required.
   Considering cost of energy of Rs.6/- per kw-Hr; cost of running Blower for 8 Hrs, for 300 days per year.
   0.85kw X 8 Hr X 300 days X Rs.6/- per unit = Rs.12,240/-

COMPRESSED AIR KNIFE SYSTEM

   To run 12” knife at 18,000 FPM 5kw Air Compressor is required.
   Considering cost of energy at Rs.6/- per kw-Hr cost of running Air Compressor for 8 Hr for 300 days per year.
   5kw X 8 Hr X 300 days XRs. 6/- per unit = Rs.72,000/-

THERMAL DRYING

12” long Heater of 2 kw Heater with small 200 watts blower is Required.
Considering cost of energy at Rs.6/- per kw- Hr, cost of running Heater For 8 Hr for 300 days per year.
2.2 kw X 8 Hr X 300 days X Rs.6/- per unit = Rs.31,680/-

PAY BACK

Even if you have to replace existing compressed air or thermal system by scrapping the existing system and installing a new HVLP system costing Rs. 20,000/-

Energy cost saving would pay off for System within 3 to 6 months, after which energy cost savings will be total profit.

If plant is running for triple shifts and whole year around, the payback periods will be much faster and savings will be even greater.

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