Sweet potato starch machine
1. Cleaning and washing machine: The cleanness of the material have an vital influence on the end products, therefore the cleaning and washing section are important in hot sale sweet potato roduction line. In this section the attached sand, dirt, weed, soil and other debris of sweet potato are first cleaned in sweet potato starch machine. The dry sieve is designed with inner spiral which can push forward sweet potato during the cleaning process. There is no water needed for this machine. Then the cleaned sweet potato enters into sweet potato washing machine for further wash the outer impurities.
2.Cutting and crushing machine: Due to the big size of sweet potato, it will be better to cut it into small piece before crushing process. The cutting machine is used for this purpose. After cutting, the sweet potato is transported into rasper for crushing by screw feeder. As an important sweet potato starch machine, rasper is mainly used for destroying the tissue structure of sweet potatoes so that the small starch particles can be separated from the roots.
Sweet potato washing machine
3. Separating machine: The crushed sweet potato paste contains other impurities like fiber, protein and cell sap. Therefore the separating process is needed. It also has an important influence on the starch yield. In sweet potato starch production line, centrifuge sieve is widely used sweet potato starch machine for separating fiber out of starch.
4. Desanding machine: According to the principle of specific gravity separation, the starch slurry is pumped into the desander by a pressure pump, and the bottom stream is desanded by this sweet potato starch machine, and the top stream is passed through the slurry to achieve the purpose of sand removal.
5. Concentration and refining machine: Instead of traditional precipitation process, the concentration and refining process can separate non-starch substances with high efficiency, thus to improve the quality and whiteness of sweet potato starch. And hydrocyclone station is the widely used sweet potato starch machine in sweet potato starch production line for this purpose. Hydrocyclone station can effectively separate non-starch substances such as protein, fiber and cell sap in starch.
Sweet potato starch dewatering machine
6. Dehydration machine: The water content of starch milk coming out of hydrocyclone station is too large to dry directly. Therefore, it is necessary to dehydrate starch milk by sweet potato starch machine first, so that the water content of starch is about 38%-40%.
7. Drying and packing machine: After dewatering, the wet starch is transported to the flash dryer for drying. The flash dryer takes use of the negative press principle to dry the wet starch which can effectively control the loss of the starch. And the last sweet potato starch machine is semi-automatic packaging machine. It can save labors for the factory.
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