Sweet potato starch production line

Sweet Potato Starch Production Line

More than 10 years experience in tuber starch processing field

Adopting advanced European process technology 

Process description:  Sweet potato transporting, De-stoning, Washing, Chopping, Rasping, De-sanding, Fiber extraction, Concentration and refining, De-watering , Drying, Packing 

Processing capacity :  60tons/day sweet potato starch  120 tons/day sweet potato starch  200 tons/day sweet potato starch   Advantages: 

- Advanced European process technology 

- High quality equipment materials and treatment 

- First class machine fabrication technology and strict quality control 

- Advanced DCS control system 

- First class potato starch quality 

- Excellent after sale service 

For more details please contact us. 

The fresh harvested roots are weighted and storages on a clean concrete square. From there they are dumped into rotary cleaning drums for pre-cleaning/dry cleaning of the roots. The roots coming from the cleaning drums are transported to the paddle washer/peeler. At inspection belt the roots are inspected on tails and remaining impurities such as timber and bones. After inspection the roots are transported to the rasping section. The cleaned roots coming from the root washing section are fed into the chopper. The chopper chops the roots into coarse pieces which fall into the rasping-hopper and then they are dosed and distributed to the rasper. The disintegrated roots are pumped into the desanding units where sand and other coarse particles are removed. The de-sanded root-slurry is discharged to the extraction section. One extraction/pulp-dewatering line consists of one three-stage extraction unit and one pulp-dewatering sieve.The starch milk is discharged to the crude starch milk tank.The fibers from an extraction unit are fed to a pulp-dewatering unit where the fibers are dewatered. Before the crude starch milk is fed to the separator for concentration, a second degritting is executed to remove the very fine sand (red clay) from the starch milk. The crude starch milk is fed into the two phase nozzle separator via the rotary brush strainer to protect the nozzles of the separator for coarse impurities. The crude starch milk is concentrated to a density of 18 - 19° Bé and continuously discharged through the nozzles. The concentrated starch milk is directly fed into the washing unit. The washing unit is a multi stage cyclone unit consists of 8 washing stages. The starch milk is washed counter currently in order to remove the remaining fibers, protein and other impurities.  The dewatering is done by a peeler centrifuge. The dewatered starch cake is discharged on a belt conveyor which transports it the dryer section. After dewatering of the starch milk, the starch cake is transported by belt conveyors to the flash dryer. The refine starch is transported into a starch silo, where the starch is cooled by retention time. From the silo the starch is extracted by the semi-automatic bagging installation, where the starch is bagged into 25kg bags.
Main Equipment  1 Paddle washer 2 Rasper 3 Desanding unit 4 Centrisieve 5 Dewatering sieve 6 Hydrocyclone unit  7 Fine fibre sieve 8 Peeler centrifuge 9 Flash dryer 10 Weighing and packing machine 11 Control system 12 Miscellaneous