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Zhengzhou Taida Mining and Metallurgy Equipment Co., Ltd.
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Coffee drying machine

Poster:Taida TAIDA Rotary Dryer-Tags:drying machine,dryer machine,d
Product Details
Tel:86-371-55635058    Fax:86-371-67792566

drying machine,dryer machine,drying machinery

There are several coffee drying machine systems available. Many older drying machines are converted grain drying machines that are not as efficient as the new horizontal barrel drying machines. The new coffee drying machines are designed to mix the coffee evenly to ensure uniform drying. Drying coffee by using mechanical drying machines accelerates the slowest part of the coffee drying process (15-11%) and helps prevent fermentation. In some environments that have a high humidity the entire drying process must take place in mechanical drying machines. Mechanical drying machines should never be set higher than 40-45°C and this question should be asked before buying any coffees that have been mechanically dried. At higher temperatures the germ is killed and the flavor potential of the coffee is ruined. At extreme temperatures the bean crystallizes, and when smashed with a hammer, will break like glass.

The best, but least utilized method of drying coffee is by using drying tables. In this method the pulped and fermented coffee is spread thinly on raised beds, which allows the air to pass on all sides of the coffee. The coffee is mixed by hand and the drying that takes place is more uniform and fermentation is less likely. Most coffee from Africa is dried in this manner and select coffee farms around the world are following their lead.

Technical parameters


 
LPG-5 LPG-25 LPG-50 LPG-100 LPG-150 LPG-200 LPG-500 LPG-800 LPG-1000 LPG-2000 LPG-3000 LPG-4500 LPG-6500
Inlet temperature C 140-350 automatically controlled
Outlet teperature C 80-90
Centritugal spraying nonzzle High Speed centrifugal atomizer
Centritugal spraying nonzzle (KG/H) 5 25 50 100 150 200 500 800 1000 200 3000 4500 6500
Rotation speed(r.p.m) 25000 22000 21500 18000 16000 12000-13000 11000-12000
Spraying disc diameter(mm) 60 120 150 180-210 Decided in accordance with the
requirements of process
Max,Electric heating power(kw) 8 31.5 120 81 99  
Dride powder restoring rate () ≥95
Length of convered area (m) 1.6 4 4.5 5.2 7 7.5 12.5 13.5 14.5  
Width of convered area (m) 1.1 2.7 2.8 3.5 5.5 6 8 12 14 Depends on working process,
manufacturing conditions and
customers requirements to
design.
heigth of tower body (m) 1.75 4.5 5.5 6.7 7.2 8 10 11 15
hoisting heighr of nozzle (m) -- 2.5 2.5 3.2 3.2 3.2 3.2 3.2 3.2
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rotary dryer

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