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Crystallization process for glucose production

A technology for glucose and crystallization, applied in the field of glucose production technology, can solve the problems of unstable cooling process control, long crystallization process cycle, complicated equipment composition, etc., and achieve the effects of improving product quality, shortening production cycle, and reducing the number of equipment.

Inactive Publication Date: 2003-02-26
XIWANG GROUP
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Problems solved by technology

[0003] The crystallization process in the traditional glucose production process in my country adopts single-tank crystallization and intermittent operation, and the crystallization process cycle is long. Generally, the operation cycle of a single tank is about 70 hours, and the output can only reach 2 / 3 of the tank capacity, and the remaining 1 / 3 should be reserved as seed crystals, the production efficiency is low, and the utilization rate of equipment is poor
During this single-tank batch operation process, the heat exchange is not uniform, the control of the cooling process is unstable, and problems such as small crystal grains, slow nucleation, and soft grains are prone to occur, which directly affect the quality of the final product. Although the foreign chemical industry has advanced crystallization However, due to the complex structure of the equipment, high cost, difficult operation and low crystallization yield, it is not suitable for manufacturers in my country who process glucose from agricultural products.

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  • Crystallization process for glucose production
  • Crystallization process for glucose production
  • Crystallization process for glucose production

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Embodiment Construction

[0018] Now with four 25m 3 Taking the glucose crystallization device used in series as a group of horizontal crystallizers as an example, the embodiment of the horizontal continuous crystallization process of the present invention is specifically described.

[0019] Concentrate the sugar liquid from the separation process after starch sizing, liquefaction, saccharification, slag removal, and decolorization to 70-72% of dry matter through a multi-effect evaporator, with a pH value of 3.5-4.2 and a hue ≤ 4 # , the temperature is controlled at 42-44 ° C, carbon particles ≤ 8 particles / 500ml, and then pumped into the inlet of the primary crystallizer in the crystallization process, and the flow rate of the material is controlled to 2.5m 3 / h or so, so that the material flows through the primary crystallizer, secondary crystallizer, tertiary crystallizer, and quaternary crystallizer at a uniform speed, and flows out stably from the outlet of the quaternary crystallizer, while coo...

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Abstract

A crystallization process for glucose production features several horizontal crystallizers connected serially for continuous feeding, continuous crystallization and continuous discharging. The stable continuous operation of the crystallization process is maintained by controlling the material inlet temperature, discharging temperature and other several main parameters. Compared with the traditional crystallization process, the present invention has the advantages of low investment in equipment, high production efficiency, continuous stable operation of crystallization process, high product quality and high yield of crystallized glucose.

Description

(1) Technical field [0001] The invention belongs to a glucose production process, in particular to a crystallization process in the glucose production process. (2) Technical background [0002] Crystalline glucose is generally made of starch, which is processed through starch slurrying, liquefaction, saccharification, slag removal, decolorization, separation, crystallization, separation, and drying. It is an important raw material in food processing, pharmaceutical products, industrial fermentation and other industries. [0003] The crystallization process in the traditional glucose production process in my country adopts single-tank crystallization and intermittent operation, and the crystallization process cycle is long. Generally, the operation cycle of a single tank is about 70 hours, and the output can only reach 2 / 3 of the tank capacity, and the remaining 1 / 3 should be reserved as a seed crystal, the production efficiency is low, and the equipment utilization rate is ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K1/10
Inventor 王勇王亮王岩崔宝贵陈翠花
Owner XIWANG GROUP
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