Fluidized Bed Driers – Batch, Solid, Not Heat Sensitive
Industry: Fruit and Vegetable Preserving and Specialty Food Mfg (NAICS 3114)
NAICS process:
311411 Frozen Fruit and Vegetables
311421 Canned Fruit and Vegetables
311422 Canned Specialty Products
311423 Dried and Dehydrated Products
Process Brief: Moisture in fruits and vegetables is removed using hot air.
Energy source: Steam/Natural gas
Energy Intensity: 1,800-9,600 Btu/lb of water in the product
Fluidized bed driers use hot air to dry small, strong products such as peas, diced and sliced vegetables, grains, powders, and herbs. The product sits on a perforated plate or screen and hot air is blown up through the plate and the product becomes entrained in the upward flowing gas stream. The process must be carefully controlled to assure that the product, which becomes lighter as it dries, is properly entrained. Fluidized bed systems dry foods uniformly and quickly, although energy costs tend to be higher than for other options. Most of the energy load is thermal, but these driers also use considerable electricity for fans that must maintain the product in the fluidized bed in addition to moving the hot air through the drier.
Tornesh Dryer
http://www.carriervibrating.com/industries/tornesh_dryer.asp
Manufacturers
Aeroglide Corporation
Mailing Address
P.O. Box 29505
Raleigh, NC 27626-0505
Telephone: 919-851-2000
Web site: www.aeroglide.com
Niro Inc.
9165 Rumsey Road
Columbia, MD 21045
Telephone: 410-997-8700
Web site: www.niroinc.com
Carrier Vibrating Equipment, Inc.
P. O. Box 37070
Louisville, Kentucky 40233-7070
Telephone: 502-969-3171
Web site: www.carriervibrating.com