Starch production technology

A production process and starch technology, applied in the field of food processing, can solve the problems of increased power consumption, water consumption, large amount of production, burden on sewage treatment plants, etc., and achieve the effect of reducing power distribution power load, lightening load and improving service life.

Inactive Publication Date: 2017-01-11
SHANDONG XIANGRUI PHARMA
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AI Technical Summary

Problems solved by technology

[0002] At present, in the domestic traditional starch production process, the dehydration of refined starch milk adopts a horizontal siphon scraper centrifuge. Through the dual action of centrifugal force and siphon suction, solid-liquid separation is realized. The dehydration filtrate and siphon liquid of the scraper centrifuge are discharged to the waste water pool. The corn steep liquor produced by the soaking process of starch production is evaporated and concentrated to obtain concentrated corn steep liquor, and the steam condensate is discharged to the waste water tank, which will generate a large amount of waste water during production, increase power consumption and water consumption, and also cause a burden to the subsequent sewage treatment plant

Method used

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Embodiment Construction

[0015] Below in conjunction with specific embodiment, further illustrate the present invention.

[0016] A starch production process, with purification, soaking, crushing, germ separation, fine grinding, fiber separation, protein separation, starch washing, refining, dehydration, drying, packaging, recycling, raw corn is sent to corn drum sieve for purification and impurity removal, The purified raw corn is put into the corn mixing box and mixed with dilute corn steep liquor, and then sent to the soaking tank for soaking. Crushing, germ separation, the thin corn steep liquor obtained after crushing, after fine grinding, is sent to the pressure curved sieve, and the fiber separation and coarse starch milk separation are carried out through the pressure curved sieve, and the remaining fine corn steep liquor is obtained by evaporating and concentrating Concentrated corn steep liquor is sold, and steam is condensed to obtain corn steep liquor soda, which is sent to the recycling s...

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Abstract

The invention discloses a starch production technology. The starch production technology comprises the following steps: carrying out purifying, carrying out soaking, carrying out crushing, separating embryos, carrying out fine-grinding, separating fiber, separating protein, washing starch, carrying out refining, carrying out dehydrating, carrying out drying, carrying out packing, and carrying out recycling. On basis of the characteristics of small amount of siphon suction produced in the step of carrying out dehydrating and small amount of suspended solids in steam in the steamed corn pulp produced in the step of separating fiber in the starch production technology, the pH value is regulated to 7.0-7.5 by using sodium carbonate; and the product is reused in the 12-stage cyclone washing process in the step of starch washing. Compared with traditional technologies, the starch production technology realizes recycling of the siphon suction and the steamed corn pulp vapor-water, reduces discharge of starch wastewater, decreases new water consumption amount in the 12-stage cyclone washing process in the separating step, increases yields of the corresponding dry matters by reducing water discharge amount, reduces influent load of starch wastewater treatment, ensures water-treatment influent sulfite content lower than 50mg/l, reduces the load of the aeration tank before water inletting into the IC reactor, and improves the service life of the aeration tank system.

Description

technical field [0001] The invention belongs to the technical field of food processing, and mainly relates to a starch production process. Background technique [0002] At present, in the domestic traditional starch production process, the dehydration of refined starch milk adopts a horizontal siphon scraper centrifuge. Through the dual action of centrifugal force and siphon suction, solid-liquid separation is realized. The dehydration filtrate and siphon liquid of the scraper centrifuge are discharged to the waste water pool. The corn steep liquor produced by the soaking process of starch production is evaporated and concentrated to obtain concentrated corn steep liquor, and the steam condensate is discharged to the waste water tank, which will generate a large amount of waste water during production, increase power consumption and water consumption, and also cause a burden to the subsequent sewage treatment plant. [0003] It is necessary to seek a starch production proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/00C08B30/04
Inventor 孟广银刘天友王国王志勇郑岚英陈振伟
Owner SHANDONG XIANGRUI PHARMA
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