How to make sweet potato starch?

The following is the introduction of our production technology for how to make sweet potato starch
Cleaning and washing-cutting and rasping-separating-concentration and refining-dehydrating-drying and packing

1.Preprocessing of sweet potato
Cleaning and washing: For how to make sweet potato starch, the first step is cleaning. Cleaning process is for removing the stone, seed and dirt of sweet potato. Dry sieve is mainly used for this purpose. Then the potato need to be washed in rotary washing machine. After the two process, the sweet potato is completely and thoroughly washed.
2.Sweet potato starch extraction process
Cutting and rasping: After washing, the sweet potato is firstly cut into small pieces so that it can be crushed fully in isolation of starch from sweet potato process. After cutting, the sweet potato is crushed into slurry for further processing. Crushing plays an important role in the process for how to make sweet potato starch for it determines the starch yield. DOING rasper is a high efficient machine with high rasping coefficient and high extraction rate.

3. Sweet potato starch separating and refining process
a. Separating and desanding: After crushing, the fiber, protein, cell sap and other materials are released from cell wall for how to make sweet potato starch. Therefore the separating is needed to separate starch from fiber and other impurities.  And the mainly machine contains centrifuge sieve and fine fiber sieve which remove fiber and small fiber respectively. After that, the sweet potato starch slurry is pumped by a screw pump into a desander to remove sand particles.
b. Concentration and refining: The starch slurry from the desander unit is transferred to the multi-stage concentration and refining unit. For how to make sweet potato starch, hydrocyclone station is mainly used for this process. The process water is pumped in from the other end of the hydrocyclone station to wash the starch in a countercurrent way. Usually a full process includes the concentration, recycling and refining of starch milk.

4.Sweet potato starch dehydrating and drying process
a. Dehydrating: The dehydrating is used to reduce the water content of cassava milk so that is can be dried. Vacuum filter is a sweet potato starch processing machine take use of negative pressure to achieve the purpose of dehydrating for how to make sweet potato starch.
b. Drying and packing: The final process for how to make sweet potato starch is the drying and packing. The dehydrated starch cake is transported to the feed inlet of the flash dryer through the conveyor belt and enters the hoist through the feeder. The wet starch is heated by the high speed hot air and the water is evaporated. Finally, the dried starch is then transported to semi-automatic packaging machine and packaged into finished products.

The whole production process for how to make sweet potato starch adopts the company's new automatic starch processing production line, from fresh sweet potato to starch products are all automated production, high quality, high efficiency, energy saving and labor saving. Should you have any concern about how to make sweet potato starch, welcome consult our engineer.


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Contact: Ms Elina
Email: market@doinggroup.com                                           
Tel: 0086 371 5677 1822                                                 
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cassava starch machine