Sweet potato starch production line
Sweet potatoes are washed by water guns and sent to the weeding machine to remove impurities before entering the stone removal machine. After weeding, stone removal, and sediment removal, it enters the drum cleaning machine for cleaning, and then is sent to the crusher and filing mill for crushing by the screw conveyor.
The mixed slurry of sweet potatoes after filing is pumped to the horizontal centrifugal sieve group and cylindrical sieve group for screening. The starch in the mixed slurry is fully extracted here. Coarse starch milk is sent to the refining section; Potato residue is pumped out of the workshop through a screw pump.
Add a desander between the centrifugal screen and the cyclone station to remove fine sediment and ensure that the ash content of the finished starch does not exceed the standard.
The concentration and washing of starch rely on starch cyclone stations, which are divided into four stages according to their applications: recovery, concentration, fine residue separation, and washing.
Starch milk with a dry matter content of about 40% is dehydrated to a moisture content of 38-40% in the dehydration section, and then sent to the drying section. The dried starch needs to be further screened through a starch sieve and rapidly cooled .
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