15t tapioca/cassava/potato starch air-stream crash dryer

Specifications

The Air- stream crash dryer is our latest invention patented product. And the invention patented product number is ZL 2006 1 0086403.8 

The dryer is applied to corn, cassava, tapioca, sweet potato,  potatoes starch  and wheat powder drying. The equipment is designed by combining air- stream crash with vortex flash vaporization dry two dry theories. At present it is the first choice for drying high moistrue and bulk material. 

 Gelatinization temperature of other starches:

Corn starch: 62 - 72°C;        Cassava starch: 59 - 69°C;

Potato starch: 58 - 68°C;      Wheat starch: 58 - 64°C

Compare with tower type starch dryer, air stream crash dryer has two advantages:

1.   Save heat energy source. The work pressure of heat exchanger is 0.4 - 0.5 MP (0.6 - 0.8 MP for tower type starch dryer), drying temperature solid mixing is ≤55°C (≥65°C for tower type starch dryer). It saves heat energy source 5 – 8% as reducing work pressure and drying temperature. If produce starch 100T/d, it saves stream 4 – 6 T/d; the price of steam is RMB200/T, it will save RMB200/T x 5T/d = RMB1000/d, and RMB1000/d x 300days = RMB300000/year.

2.  Starch quantity is very good. the initializing temperature for sweet potato gelatinization is 58°C, the final temperature for sweet potato gelatinization is 72°C. Although tower type starch dryer is a flash stream drying, the drying temperature reaches to gelatinization temperature. So there is some starch gelatinization. And there is a little of yellow suspended solids after mixing water. But, for air steam crash dryer, the temperature is lower gelatinization temperature, so it guarantees quality of the starch.