Method for recycling process water in production of cornstarch
A technology of corn starch and water circulation, which is applied in the field of corn starch production, can solve the problems of heavy sewage treatment burden, high production cost, and large water consumption, and achieve the effects of improving treatment quality, increasing dry matter yield, and reducing water consumption
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[0023] The process water recycling method in cornstarch production comprises the following steps:
[0024] (1) Soaking: Soak the corn with the prepared acidic soaking solution after removing impurities. After the soaking solution is evaporated by steam, the evaporated water is removed for sewage treatment. Grade swirl washing.
[0025] (2) Coarse grinding: the soaked corn is subjected to coarse grinding to remove the germ, the germ is washed, squeezed and dried to obtain dry germ, the germ is washed and squeezed, and the extruded washing water is circulated to wash the germ.
[0026] (3) Fine grinding: the coarsely ground corn is finely ground to remove fiber to obtain coarse starch, the fiber is washed, squeezed and dried to obtain dry fiber, and the fiber is squeezed and the extruded washing water is circulated to wash the fiber.
[0027] (4) Protein separation: the crude starch is separated into starch milk and protein milk, and the protein milk is squeezed and dried by a ...
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