Machines of
Industrial Drying Systems
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MACHINES
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The following table shows which machine might be more appropriate according to product type. Our company can get more information on a product basis.
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MACHINES
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Fruit and Vegetables
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Liquid Products
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Mud type products
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Granular products
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Big-Volume products
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Powder products
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Filter Press
Waste
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Pneumatic Dryer
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bad
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bad
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Very good
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bad
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bad
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good
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Very good
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Tray Dryer
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good
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bad
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medium
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medium
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medium
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medium
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medium
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Continuous Tray Dryer
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good
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bad
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medium
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medium
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medium
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medium
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medium
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Belt Dryer
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good
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bad
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bad
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medium
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medium
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bad
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Bad
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Pipe Dryer
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bad
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bad
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bad
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good
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bad
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good
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Bad
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Fluid Bed Dryer
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bad
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bad
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bad
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good
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bad
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medium
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Bad
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Spray Dryer
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bad
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Very good
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bad
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bad
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bad
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bad
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Bad
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Cabinet dryer
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medium
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bad
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bad
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medium
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Very good
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bad
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Bad
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Mixing Drier
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bad
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bad
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bad
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good
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bad
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bad
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bad
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Following data need to be collected before selection of dryers (Papagiannes, 1992; Van’t Land, 1991)
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1. Physical form of feed – Liquid, slurry, pasty, free flowing powders, granular, crystalline, continuous sheet, discontinuous sheet.
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2. Dryer throughput (Kg/hr).
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3. Upstream/Downstream equipment – batch or continuous.
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4. For particulate feed products, mean particle size and size distribution.
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5. Inlet/outlet moisture content of product.
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6. Maximum allowable product temperature.
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7. Drying curve.
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8. Feed cohesiveness.
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9. Product fragility.
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10. Contamination by drying gas.
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11. Explosion characteristics (vapor/air and dust/air).
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12. Toxicological properties.
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13. Corrosion aspects.
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14. Product value.
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15. Experience already gained.
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