Sweet potato starch preparation
Sweet potato is a good material which can be processed to be starch. Sweet potato starch preparation must go through a series of procedures, which include sweet potato cleaning and washing section, sweet potato grinding section, sweet potato starch slurry extraction section, sweet potato starch dehydrating section, sweet potato starch drying section, sweet potato starch sieving and packing section. Sweet potato starch preparation machines all made by DOING company.
Sweet potato starch preparation machines
1.The cleaning and washing section of sweet potato starch preparation. This section includes sweet potato cleaning machine, rotary washing machine.
(1).Sweet potato cleaning machine: In this part, fresh sweet potatoes are transported to the cleaning machine, in order to remove the dirt attached on the surface of sweet potato and some peel of sweet potatoes. It has stable speed so as to make the sweet potato free of damage. Easily adjustment according to raw materials features.
(2).Rotary washing machine: Rotary washing machine is the washing section machine in sweet potato starch preparation and it adopts the principle of countercurrent to clean out mud, sand and small stones effectively. The damage rate of raw material is below 1% and this can ensure high starch extraction yield.
2. The grinding section of sweet potato starch preparation. This section includes sweet potato grinding machine.
Sweet potato grinding machine : the machine is used to crush sweet potato, and the material becomes a kind of starch slurry. Sweet potato grinding machine is designed by DOING company combined with advanced foreign technology. It can fully crush sweet potatoes, with high rasping coefficient.
3.The extraction section of sweet potato starch preparation. This section includes centrifuge sieve, fine fiber sieve, disc separation machine, hydrocyclone station.
(1).Centrifuge sieve: The machine is used for the extraction of starch from the materials, removing fiber from starch slurry.
(2).Fine fiber sieve: The machine can deal with smaller fiber, and remove them out of starch slurry. Its automatic front and back washing system guarantees good screen penetration and the stability of the equipment.
(3).Disc separation machine: The machine plays an important part in the process of sweet potato starch preparation.It can be used for enrichment and purification of sweet potato starch slurry. Usually, sweet potato starch disc separators are used in the sweet potato starch preparation in conjunction with hydrocyclone station.
(4).Hydrocyclone station: The full cyclone separation system includes concentrating, recovering and washing so as to clean out fiber and cell sap effectively. It is a significant machine of the extraction section of sweet potato starch preparation.
Main machines used for sweet potato starch preparation
4.The dehydrating section of sweet potato starch preparation. This section includes starch vacuum filter.
Starch vacuum filter: After those steps above, the pure starch slurry should be dewatered by vacuum filter, then it become starch. But at this time, starch water content is 38%-42%. The machine can work stably and be easy to operate.
5.The drying section of sweet potato starch preparation. This section mainly includes flash dryer.
Flash dryer: The machine is applied to dry sweet potato starch. The whole system adopts negative system and cooling system, thus it can guarantee purer and dryer sweet potato starch.
6.The sieving and packing section of sweet potato starch preparation. This section mainly includes sweet potato sieving machine and packing machine.
In brief, sweet potato starch preparation mainly includes sweet potato cleaning machine, rotary washing machine, sweet potato grinding machine, centrifuge sieve, fine fiber sieve, disc separation machine, hydrocyclone station, starch vacuum filter, flash dryer, sweet potato sieving machine and packing machine. These machines made by DOING all are high- quality and in reasonable price.
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