Design and construction of suitable dryer for washed dried barberries.
2008
Chaji, Hossein | Mahdi Niya, A`bbas | Bi Deli, Nepton
Annually, over 10000 tons of dried barberry is produced in Iran that 97% of that is produced in south khorasan. It is very important in Birjand and Quen economically. Characteristics of barberry are very complex so efforts for industrial drying haven't had results in the past. Almost, total barberries are dried in traditional methods (directly in sun or in shadow) so products are polluted by yeast, mold and soil, sand …etc. Therefore it isn't suitable for export. If dried berries, in short time washed by brine and again dried immediately, pollution amount will reduce and color and taste improve. Therefore in this investigation a plant designed and constructed for dried barberries that washed in brine. It is conclude of two partsheater and dryer. Air is warmed by heater in indirect method so air isn't polluted by combustion gases. A blower blows heated air to under of tray so air pass in throw flow case. There is a vibrator unit for more uniform drying and help to berries movement in tray. The frequency of trey is between 4.5 to 16.6 Hz. In order to high thermal productivity almost 80% of air is recycled. Temperature is controlled by a digital thermostat.
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