Sweet potato starch production in Nigeria

The sweet potato starch production in Nigeria and main equipments:
Fresh sweet potato (conveyor machine)- cleaning (dry sieve)- washing(rotary washing machine)- grinding (rasper)- starch and slag separation (centrifugal sieve, fine fiber sieve)- desanding (desander)- protein separation (hydrocyclone station)- dehydration (vacuum filter)- drying (flash dryer)-packing(semi-automatic packing machine)

Sweet potato starch production line

* Cleaning: The weighted sweet potato is cleaned by dry sieve to remove the foreign matters attached on raw sweet potato. There is no water needed in this sweet potato starch production in Nigeria.

* Washing: Water is added in paddle washing machine for further removing the sand, dirt, soil and other impurities attached on raw material in sweet potato starch production in Nigeria. Backwashing method is adopted for better washing effect.

* Crushing and filtration section: The washed sweet potato is subjected to high-strength rasper, of which the starch extraction rate is up to 95%. Multiple filtration means is adopted in sweet potato starch production in Nigeria to remove fiber impurities, and the free starch filtration rate is 98%.
The mainly sweet potato starch machine equipped in this section includes: cutting machine, rasper, centrifugal sieve and fine fiber sieve.

Sweet potato grater

* Sand removal unit
Then in sweet potato starch production in Nigeria, the starch slurry is sent to a stirred starch tank, and then the starch is removed by a two-stage sand remover, and the collected sand is discharged by a butterfly valve.

* Protein separation unit: Hydrocyclone station is used in this process for sweet potato starch production in Nigeria. The starch is further concentrated and refined to remove non-starch components such as protein to improve the quality of the starch.

* Dehydrating: After the above process, the starch slurry still contains a lot of water, so it must be dehydrated to facilitate drying in sweet potato starch production in Nigeria. Peeler centrifuge is extensively used for dehydrating. The moisture content of wet starch after dehydration is required to be lower than 40%.

Starch dryer machine

* Starch drying unit
sweet potato starch production in Nigeria requires to dry wet starch to the moisture content of 14%. The dried product is collected by a high efficiency single cyclone and discharged by a low speed screw conveyor. The finished product is conveyed by air flow or screw conveyor for cooling. The cooled dry starch will be collected by a two-stage cyclone and sent to the sifter using a screw conveyor, sieved and packaged.

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