The advantages of Air-Tec System’s ™ dense-phase pneumatic conveying technology

Quality of materials

The low conveying speed makes it possible to maintain all the characteristics of the conveyed product.  Brittle, delicate and abrasive materials remain intact; mixtures retain all their initial properties.

Efficiency for complex conveying

Air-Tec System’s technology is suitable for distances even greater than 500 meters and flow rates of more than 100 metric tons/h.

Cleanliness and safety

Conveying systems have a low environmental impact. They are completely closed to ensure a clean and safe working environment.

Simplicity of design and assembly

Layout and installation of the system is simpler than for conventional systems.

Energy savings

The proprietary technology results in greater efficiency, in the ratio between the air or another gas and the amount of product conveyed, than conventional mechanical systems or dilute-phase systems.

Less maintenance

Reduced maintenance costs for technical service and the purchase of spare parts due to less wear on the pipes and system in comparison to conventional mechanical systems or dilute-phase systems
I vantaggi del sistema di trasporto Air-Tec

Air-Tec System™ technology

Our systems use a proprietary technology for the dense-phase pneumatic conveying of bulk materials in the form of powders and granules. They can have lengths exceeding 500 m and capacities greater than 100 metric tons/h.
The low conveying speed makes it possible to protect the quality and integrity of any type of material: brittle, abrasive, delicate, mixed, or prone to bridging.
Dense-phase pneumatic conveying is characterized by a high product/air efficiency ratio. The following is an indicative ratio of the air (or other gaseous fluids) to product:
Dense phase - about 30 liters of carrier gas per kilogram of product.
Other systems - about 1000 liters of carrier gas per kilogram of product.

The use of dense-phase pneumatic conveying technology enables cost savings and greater efficiency than conventional mechanical systems, including industrial conveyor belts or bucket elevators, or dilute-phase systems.
The greater flexibility of Air-Tec System™ solutions in comparison to dilute-phase systems with industrial conveyor belts and conventional methods of industrial automation, allows them to be combined with any type of machine: extractors, silos, screws, hoppers, big-bag emptying stations, bag splitters, electrostatic precipitators, and filters. Furthermore, the possibility of using nitrogen during conveying makes it possible to use the systems in ATEX environments.

  • QUALITY OF MATERIALS
  • efficienCY
  • COST SAVINGS
  • fleXIBILITY
  • CLEANLINESS
  • SIMPLICITY

Conveying method

  • standard
  • full pipeline
  • continuous full pipeline
  • Standard method

The standard conveying cycles are characterized by the emptying of the line after each load. They are applied for conveying a wide range of materials.

  • Full-pipeline method

Conveying takes place while the pipe is full in order to obtain considerable savings of air and energy. The full-pipeline method is used to transport fragile and abrasive materials over long distances.
The entire conveying line consists of two parallel pipes: one for conveying materials to their destinations and one for the introduction of air into the pipe by means of special boosters. To achieve reduced air consumption and maximum efficiency, pneumatic solenoid valves that are placed before each destination convey the air to the selected destination.

  • Continuous full-pipeline method

This technology employs multiple connected conveyors that operate alternately to create a continuous flow of materials, thus reducing loading time.

Automation

Our solutions employ advanced automation technology that is capable of managing and controlling the entire conveying cycle from loading the conveyor to reaching the destination chosen by the customer.
The automation software is programmed to perform the operations related to the loading, conveying, and washing phases; it is created, based on the customer’s needs and the characteristics of the system, to adapt to the most complex solutions. The electrical panel consists of a user interface, a PLC (programmable logic controller) capable of processing signals from sensors, and other electronic components for controlling the entire conveying process.

The panel offers the possibility to select the most suitable operating mode from among the following: the manual mode (element by element) to individually manage each individual user and check their efficiency; the semi-automatic mode (with operating phases) to control loading, conveying, and washing; and the automatic mode to automatically manage the operating phases according to the signals received.

During the internal pre-test phase, the electro-mechanical operation of the panel and the automation steps are verified. The system is then tested during its next startup at the customer’s premises.
 

The test laboratory

Air-Tec System’s pilot plant allows tests to be performed on materials supplied by customers, in the form of both powders and granules, and to verify the conveying characteristics before implementation. The laboratory has a database of over 2000 samples of materials and related parameters determined during testing: air consumption, pressure, speed, conveying capacity (maximum volume), filling coefficient, fragility of the material, and further information on request.
The minimum amount of material required for each test is 0.5 m³.

The tests make it possible to:

  • Have important information for the design of the system;
  • Optimize the time during startup;
  • Show visiting customers how the system works;
  • Studying new solutions.

Some materials

Please contact us at airtec@air-tec.it if your material is not mentioned.
AshesCementCereal grainsCobalt and metal powdersCoffeeConstruction sandDetergents and soapsDried sludgeFlourFoundry sandFungicides and basic chemicalsGlassGlass fiberMineralsPet foodPharmaceutical powdersPlastic granulesRubberSaltSpray-dried ceramic powdersSugar
Acrylamide
Acrylic modifier
Active carbon
Adipic Acid
Alumina
Alumina calcined
Aluminate cement
Aluminium fluoride
Aluminium nitride
Aluminium silicate
Anhydrous borax
Animal feed
Antibiotics
Ascorbic Acid
Atomized aluminium powder
Barium and strontium sulfate
Barium sulfate
Barley malt
Base granules detergent
Bed ash
Bentonite
Bicarbonate
Biscuit mix
Black cement
Black sand
Blended glass batch
Bone meals
Borace
Boric acid
Boric acid fine powder
Bran flakes
Bread crumbs
Brown iron oxide
Burnt sand
Cake mix
Calcareous lime
Calcinate coke
Calcium aluminate
Calcium carbide
Calcium carbonate
Calcium fluoride
Calcium oxide
Calcium phosphate
Calcium silicate
Calcium stearate
Calcium sulfate
Cane sugar
caramelized fruit
Carbon black
Carbon black granules
Carbon black pellet
Carbon Mix
Carnalite
Caster sugar
Cat food
Catalyst
Celite
Cellulose
Cement blend
Ceramic
Ceramic dust
Cereal
Chamomile
Charcoal
Charred wood
Chewing gum base
Chicken seasoning
China clay
Chromic acid
Citric acid
Clay
Clay calcined
Clay tile
Coal
Coal dust
Coal slag
Coarse salt
Cobalt oxide
Cocoa
Coffee beans
Coke
Copper matte
Copper Powder
corn
Corn Gluten Meal
Couscous
Crispy rice
Crushed fiberglass
Crushed rock
Cryolite dust
Decaffeinated tea
Desiccated coconut
Dextrose
Diatomaceous earth
Disodium phosphate
Dog food
Dolomite
Dried Anthracite
Dried Anthracite
Dried fine ceramics
Dried peas
Dried sludge pellet
Dry ash
Dry Soap
Epoxy resin
Ethylene vinyl acetate
Feldspar
Ferrite
Fine salt
Fish food
Fly Ash
Foundry dust
Freeze dried coffee
Frit
Fructose
Fruit sugar granules
Fumed silica
Glass batch
Glass beads
Glass frit
Granola
Graphite
Green coffee
Green oats 
Groats
Groats
Gypsum
Hydrated alumina
Hydrated lime
Hydroquinone
Ilmenite
Iron oxide
Iron powder
Lactose
Leftover coffee
Lignite
Lime
Limestone
Long grain rice
Magnesite
Magnesium chloride
Magnesium oxide
Maltodextrin
Manganese dioxide
Marble chips
Medicinal herbs
Medium grain rice
Melamine powder
Metal powder
Metallurgical coke
Mica
Micronized carbon
Milk powder
Milled gypsum
Milled mica
Milled zircon
Mineral black
Mint sugar
Mixed glass
Mixed sand and soda ash
Moist clay
Molybdenum oxide
Monoammonium phosphate
Mortar mix
Mush
Nickel carbonate
Nickel granules
Nickel oxide
Nickel sulfate
Nylon pellets
Oat Flakes
Olivine sand
Paper pulp
Paper pulp pellet
Parmesan cheese
Peanuts
Perlite
Petroleum coke
Pharmaceutical gelatin
Phenolic resin
Phosphoric anhydride
Pink Beans
Plastic caps
Plastic Pellet
Plastic resin pellet
Polyester
Polyester pellet
Polyethylene
Polyethylene glycol
Polyethylene pellet
Polyethylene powder
Polymerized urea
Polypropylene
Polypropylene pellet
Polystyrene
Polystyrene pellet
Polyvinyl chloride
Popcorn
Portland cement
Potash
Potassium carbonate
Potassium sulfate
Potato flakes
Potato flour
Potato starch
Prilled ferrous sulfate
Pvc compounds
Pvc in polvere
PVC resin
Pyrite concentrate
Reclaimed sand
Recycled glass granules
Red iron oxide
Red lead
Refractory batch
Resin
Resin copolymer
Resin powder
Resin-coated sands
Rice
Rock dust
Rye flour
Saccharin sodium
Salt crystals
Sand
Scrap glass
Silica
Silica flour
Silica sand
Silicates
Silicon carbide
Silicon dioxide
Silicon dioxide pellet
Silicon powder
Soda ash
Sodium Bicarbonate
Sodium carbonate peroxide
Sodium chlorate
Sodium citrate
Sodium fluoride
Sodium nitrate
Sodium perborate
Sodium percarbonate
Sodium polyacrylate
Sodium stearate
Sodium sulfate
Sodium triphosphate
Soy protein powder
Soybean meal
Spodumene
Starch
Superabsorbent polymer
Talc
Tea
Tile dust
Titanium dioxide
Titanium slag
Tobacco
Tobacco powder
Trisodium phosphate powder
Urea
Vermiculite
Vinyl acetate
Vinyl resin
Vinyl tile chips
Wheat
Wheat flour
Whole wheat
Wollastonite
Yellow cement
Zeolite
Zinc oxide
Zinc powder
Zinc stearate
Zirconium
Zirconium carbonate