When designed air flow drying system, we fully considered each
factor of turbulent flow,cyclone separating and heat exchange etc.,
so that each
collocation and parameter have definite theory basis, such as heat
exchange's collocation , temperature control of inlet air and
outlet air,diameter
change of cyclone pipe etc. Through measuring on feeding material
moisture,or temperature difference between inlet and outlet, the
feeding
quantity and inlet steam volume can be automatic adjusted, thus the
water content of product could of product could reach the
technology
requirement.This kind airflow dryer is not only suitable to all
kinds potato kinds starch to be dried,but also adaptable to the
drying of corn starch
and wheat starch.
Main technical parameters
Model | DG-3.2 | DG-4.0 | DG-6.0 | DG-10.0 |
Output(t/h) | 3.2 | 4.0 | 6.0 | 10.0 |
Power capacity(Kw) | 97 | 139 | 166 | 269 |
Moisture of wet starch(%) | ≤40 | ≤40 | ≤40 | ≤40 |
Moisture of dry starch(%) | 12-14 | 12-14 | 12-14 | 12-14 |
1. Fully considered each factor of turbulent flow, cyclone
separating and heat exchange.
2. Parts contact with starch is made of stainless steel 304.
3. Energy saving, moisture of product stable.
The working principle of airflow dryer
The cold air enters the radiator plate through the air filter, and
the hot air flow after heating enters the dry air pipe. Meanwhile,
the wet material
enters the hopper of the feeding unit from the wet starch inlet,
and is transported into the hoist by the feeding winch.The hoist
rotates at high
speed to drop the wet material into the dry duct, so that the wet
material is suspended in the high speed hot air stream and heat is
exchanged.After the material is dried, it enters the cyclone
separator with the airflow, and the separated dry material is
discharged by wind
winding, and the finished product is screened and packed into the
warehouse. And the separated exhaust gas, by the exhaust fan into
the exhaust
gas duct, into the atmosphere.
There are four steps to making starch
1.Cleaning:To remove the stone sand and from the raw material ,and
peel it.
2.Crushing :To destroys the fiber structure and makes the starch
particles free.
3.Separator:To removing sand ,mud from starch slurry, degreasing,
microslag separation, protein separation, washing and concentration
of all
kinds of starch and modified starch emulsion.
4.Drying and Packing:To dehydrator the wet starch, sifter and
packaged. 
