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Prepared by:
MISPLACIDO, PAUL IVAN D.
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Introduction What is a dryer?
Types of dryers
Applications of a specific dryer
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Dryers remove moisture or liquid from substances when such
moisture is undesired. The main process involved in thetransformation from wet to dry is evaporation in which a liquid
becomes a gas and diffuses into the atmosphere. In some cases,
sublimation is achieved, and a solid will change state directly
into a gas.
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Industrial dryer
Food dryer
Air dryer
Continuous Dryer
Conveyor Dryer
Flash dryer
Fluid bed dryer
Freeze dryer
Infrared dryer
Rotary/Drum dryer
Spray dryer
Vacuum rotary dryer
Agitated thin film dryer
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Industrial dryers are used for removing moisture from substances,
products or materials in a business or manufacturing capacity.
U
sually Seen at:Pharmaceutical Food processing
Manufacturing Agricultural
Pollution control Water treatment
Paper industries and others
Application:
working with chemicals, dairy products,
fertilizers, grains, minerals, paper, plastics,
refuse and more.
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Food dryer remove moisture from fruits, vegetables, meats and other
edible substances. Dried foods preserve nutrients, color and flavor
while reducing weight and volume, making them easy to pack and
transport.
Usually Seen at:
Food industries
Application
used by food and beverage companies to create
Fruit leather, beef jerky, powdered juice, vegetables
for dried soup mixes, spices, fruits for breakfast cereals,
powdered milk and more.
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Air dryer are the most common types of industrial dryers. The product to
be dried comes into direct contact with heated air dispensed by the
machine.
Usually Seen at:
Food processing Pharmaceutical
Paper Pollution control
Agricultural sectors
Application:
remove liquids or moisture from bulk solids,
powders, parts and sometimes other liquids
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Continuous dryer remove moisture from a constant flow of substances or
items that enter the dryer, are dried and then exit, all without stopping.
Usually Seen at:
Agricultural Food processing
Publishing Apparel
Lumber industries
Application:
drying ceramics, grain, cereal, paper, screen-printed
graphics and treated wood, granules, gels, pastes,
flakes, slurries, solids and large items.
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Conveyor dyer use a belt to move materials through the dryer at a
continuous feed. Agricultural products are often dried on a belt or
similar conveyor dryer system.
Usually Seen at:
Agricultural Food processing
Chemical Industries Apparel
Lumber industries
Application:
setting wet ink on screen-printed apparel, curing
treated lumber, turning wet paste into dry grains
and drying paper.
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Flash dryer are industrial dryers that dry a substance or material
during exposure to a short burst of high heat. Water sludge is often
dried this way at water treatment plants for the easy removal of
contaminants.
Usually Seen at:
Chemical industries Polymer industries
Food processing Mineral industries
Water treatment plants
Application:
removal of contaminants from water Sludge, removing
of moisture from pastes, gels, powders, cakes, granules,
flakes and slurries
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Fluid bed dryers force heated gas through a permeable surface
where it comes into direct contact with a bed of solid materials,
causing the moisture inside them to evaporate.
Usually Seen at:
Pharmaceutical Agricultural
Food industries
Chemical industries for powders and agglomerates
Application:
used with pesticides, detergents, pigments, milk powder,
yeast, powdered flavorings and more.
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Freeze dryers are used to dry heat sensitive materials such as
chemicals and pharmaceuticals in small batches.
Usually Seen at:
Pharmaceutical industry Some Museum
Application:
removes water and bulk while maintaining flavors and
nutritional content; used to dry and preserve artifacts,
manuscripts and animal or floral specimens.
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Infrared dryers are used most often for the curing of water-based
inks and coatings found in the painting and the screen-printing
industries. These use infrared radiation to quickly dry or set the
material.
Usually Seen at:
Manufacturing processes Food processing
Medical industries Pharmaceutical industries.
Application:
used for paper drying as well as for curing ink,
paint, silicone, foam, adhesives and resin
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Rotary/drum dryers can be gas, liquid or solid fuel fired, and pass
material through a heated rotating drum. Sometimes the drums have
multiple chambers that allow a longer pass to get through the drum.
Usually Seen at:
Chemical industries Food industries
Mineral industries
Application:
include metallic oxides, powdered detergents,
insulation materials, metal powders, carbon
black pigment, and industrial chemicals
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Spray dryers take a material, such as wet sludge or wet powder, and
spin it centrifugally, then direct a line of spray of the material into a
drying chamber, which rapidly dries the material. This type of dryer
is also called a dispersion dryer.
Usually Seen at:
Chemical industries Food industries
Mineral industries
Application:
food flavorings, pigments, industrial chemicals,
ceramic products, dyestuffs, catalysts, detergents,
salts and many more
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Vacuum rotary dryers are best suited for continuous drying of
temperature sensitive and sugar containing products at low
temperature under vacuum conditions.
Usually Seen at:
Chemical industries Food industries
Pharmaceutical industries
Application:
Used to dry malted food, extracts, fruits
and vegetables, gelatin, pharmaceuticals,
beverage mix, enzymes and more
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Agitated thin firm dryers are used for converting concentrated
material to solid/semi solid form. This is designed with vacuum system
without vacuum system. Solvents/water is collected through condenser.
Usually Seen at:
Chemical industries Food industries
Pharmaceutical industries
Application:
Used to dry malted food, extracts, fruits
and vegetables, gelatin, pharmaceuticals,
beverage mix, enzymes and more
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AIR DRYER GRAIN DRYER
DIRECT CONTACT
DRYER
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CEREAL DRYER FRUITS/VEGETABLES
DRYER
FOOD DRYER
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Continuous Conveyor Dryer Continuous Hot Air Dryer
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