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What is the production process of potato starch ?
Potato starch production plant
The potato starch production process of industry is separates the components of the fresh potato: potato starch, protein, cellulose envelope, soluble fractions .To produce potato starch from fresh potato, the potatoes are crushed; the potato starch are released from the destroyed cells. The starch is then washed out ,refining and dried to potato starch powder for different industrial use.
What is the production process of potato starch ?
The production process of potato starch from fresh potato as below :
(1) Raw material receiving unit:
The potato is carried besides the storage pool after weighing. Firstly, it goes through the vibration sieve for removing the stones and sand. Then the pre-cleaned potato falls on the conveyer and enters into the de-stone and washing process .
(2) De-stone and washing unit:
Potato is transferred into the destone machine to be cleaned by washing conveyor . The small sand and stone go through the rotary screen then meet with bigger size stone which was stopped and sent back to the entrance of de-stone machine. Most of sand and stone are removed out of de-stone machine. The potato then goes into rotary cleaning machine for further removing of dirt and broken chips. Cleaned potato falls into a wahing conveying equipped with nozzles for washing the surface of potato. Workers can manually take out the rotten potatos, wooden and plastic items.
(3) Milling unit:
The milling unit is the most important step for extracting potato starch. The feeding screw pumped the clean potato into milling machine. Highly-efficient milling machine will release the starch in potato at most.
(4) Centrifugal extracting unit:
The mixture is transferred to the 3 stage centrifugal sieves, each sieve works with a fiber pump and a defoam pump. The mixture enters into each sieve to separate residue and starch. After 3 stages continuous washing and separation, the filtrate is sent to desanding unit, and the residue is sent to the residue dewatering unit.
Potato starch processing machine
(5) Potato residue dewatering unit:
The potato residue will be pumped to the centrifugal sieve for dewatering, the centrifugal sieve works like the extraction sieve. Then the screw conveyor discharges the residue out of the process, and the water will go back to the process water system.(6) De-sanding cyclone unit:
After centrifugal extracting, the starch milk is transferred to de-sanding cyclone by fiber pump. The hydro-cyclone divide the milk into two parts: the light part which contains the mixture of starch and protein will go out from top of the cyclone, and the heavy part which contains the sand will be discharged out of the system. After desanding ,the material is sent to concentration and refining unit.(7) Concentration and refining unit
The starch milk from centrifugal sieve goes into the 16 stages of refining hydro-cyclone, and fresh water comes into the cyclone from the end of system. Firstly, starch milk is pumped into 3 stages of concentration unit to remove the water, then the condensed starch milk enter the next 13 stages of washing unit, and the overflow enters into another 2 stages of recycle unit to recycle starch. Most of the effluent with fiber is discharged out of the process, and a little part goes back to the process water system. Finally, the condensed starch slurry is pumped into the starch slurry storage tank.(8) Vacuum dewatering unit:
The starch slurry is pumped into inlet tank of vacuum dewatering machine. Then the vacuum rotary drum will adsorb the starch on the drum surface and the filtrate is transferred out of the system by filtrate pump. The filter cake on the drum will be peeled off by peeler and then transferred to the air dryer by screw conveyor.
Potato starch air drying unit machine
(9) Air drying unit:
(10) Sieving and storage unit:
The starch is transferred into the vibration sieve by screw conveyor, and the sieve is used to separate the coarse and fine starch particle. Then the fine starch goes into starch tank for temporary storage.
(11) Weighing and package unit:
After seiving, the fine starch goes to the auto-packager, and will be packed into 25 kg/bag.
After seiving, the fine starch goes to the auto-packager, and will be packed into 25 kg/bag.
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DOING company offers cassava processing machine from single machine to the complete production line. If you want to get more details about cassava processing machine, please contact us:
- Do you want to buy machine?
- Yes, I want to buy machine
- No, I Just learning
- What is your raw material?
- Cassava
- Potato
- Sweet potato
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- 2. What is the final product you want to produce?
- Garri
- Cassava flour
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- Cassava chips
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- 3.What is your capacity plan?
- Small scale garri machine
- 1ton per day
- 2tons per day
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- 3.What is your capacity plan?
- Small scale
- 5tons per day
- 10tons per day
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- 100tons per day
- Others
- 3.What is your capacity plan?
- Small scale
- 5tons per day
- 10tons per day
- 20tons per day
- 50tons per day
- 100tons per day
- 200tons per day
- 300tons per day
- Others
- 3.What is your capacity plan?
- Small scale
- Middle type
- Large scale
- What is your capacity plan?
- Small scale
- 5tons per day
- 10tons per day
- 20tons per day
- 50tons per day
- 100tons per day
- 200tons per day
- 300tons per day
- Others
