Potato starch and potato starch derivatives are used in many recipes, for
example in noodles, wine gums, cocktail nuts, potato chips, hot dog sausages,
bakery cream and instant soups and sauces, in gluten-free recipes in kosher foods for Passover and in Asian
cuisine. In pastry, e. G. Sponge cake, it is used to keep the cake
moist and give a soft texture. It is also occasionally used in the
preparation of pre-packed grated cheese, to reduce sweating and
binding.
Potato starch is used in technical applications as wallpaper
adhesive, for textile finishing and textile sizing, in paper
coating and sizing and as an adhesive in paper sacks and gummed
tape.
Process description of potato starch production line:
Potato transporting, De-stoning, Washing, Rasping, De-sanding,
Fibre extraction, Concentration and refining, Fine fibre sieving,
Dewatering, Drying, Packing
(1) Raw material receiving and washing during the potato starch
processing machines:
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 belt
conveyer and enters into the storage pool, and the rubbish will be
carried away by truck.
(2) De-stone and washing unit of potato starch processing machines:
Potato is transferred into the screw destone machine to be cleaned
by water flow. 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.
Then the potato is sent by bulk elevator into temporary storage in
which it can stay 2 hours.
(3) Crushing unit of potato starch processing machines:
The Crushing unit is the most important step for extracting potato
starch. The feeding screw combined at bottom of the storage tank
pumped the clean potato into milling machine. Highly-efficient
milling machine will release the starch in potato at most.
(4) Centrifugal extracting unit of potato starch processing
machines:
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
concentration and refining unit, and the residue is sent to the
residue dewatering unit.
(5) Potato residue dewatering unit of potato starch processing
machines:
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) Concentration and refining unit of potato starch processing
machines
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.
(7) Vacuum dewatering unit of potato starch processing machines:
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.
(8) Air drying unit of potato starch processing machines:
After dewatering process, the air dryer will dry the starch to the
required moisture of the commercial starch.
The package machine will be according to the customers’ special
requirements.
Company Profile
Adhering to the principle of managing scientifically and honesty
and credit,our factory has passed ISO9001-2000 quality system
certification. Now, Our factory can provide potato dry cleaning machine, potato washing machine, potato peeling machine, potato sticks cutting machine, potato grader, potato chips production line, potato starch production line, potato mesh bag packing machine, potato dosing packing machine.
Our potato processing products have passed with CE,ISO and SGS
Certificates and has been widely sold all over the world.