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A kind of pretreatment method and system of starch size

A starch slurry and pretreatment technology, applied in the field of starch treatment, can solve the problems of wasting chemical raw and auxiliary materials, increasing the difficulty of sewage treatment, reducing starch reaction efficiency, etc., achieving convenient control, saving raw material costs, and high production efficiency Effect

Active Publication Date: 2021-04-06
东莞建泰生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the concentration of starch milk is reduced, the efficiency of starch reaction is greatly reduced, the waste of chemical raw and auxiliary materials is increased, and the difficulty of sewage treatment is increased, and it is easy to cause environmental pollution.

Method used

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  • A kind of pretreatment method and system of starch size
  • A kind of pretreatment method and system of starch size
  • A kind of pretreatment method and system of starch size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 Shown, a kind of pretreatment method of starch slurry comprises the steps:

[0035] (A1), take by weight 10 parts of starch, 13.9 parts of water, 0.12 parts of a strong alkali-water solution with a mass concentration of 30%, and set aside;

[0036] (A2), add water and strong alkali-water solution in feeding tank 1 and mix evenly, obtain mixed solution;

[0037] (A3), add the starch that accounts for 40% of the total amount of starch in the step (A1) to the mixed solution obtained in the step (A2) via the feeding tank 1, add the remaining starch after mixing evenly, and then stir evenly, that is Obtain starch slurry.

[0038] The starch is native tapioca starch.

[0039] The step (A2) also includes: before adding water and strong alkali-water solution into the feeding tank 1, cleaning the feeding tank 1 until there is no starch residue.

[0040] In the step (A3), keep the temperature of the mixed solution at 25°C.

[0041] The strong base-water solu...

Embodiment 2

[0048] The difference between this embodiment and embodiment 1 is:

[0049] Such as figure 1 Shown, a kind of pretreatment method of starch slurry comprises the steps:

[0050] (A1), take by weight 8 parts of starch, 10 parts of water, 0.1 part of a strong alkali-water solution with a mass concentration of 28%, and set aside;

[0051] (A2), add water and strong alkali-water solution in feeding tank 1 and mix evenly, obtain mixed solution;

[0052] (A3), add the starch that accounts for 20% of the total amount of starch in the step (A1) to the mixed solution obtained in the step (A2) through the feeding tank 1 at one time, add the remaining starch after mixing evenly, and then stir evenly, that is Obtain starch slurry.

[0053] In the step (A3), keep the temperature of the mixed solution at 10°C.

[0054] In the step (A2), after adding water and a strong alkali-water solution, add 1 part by weight of sodium sulfate to the feeding tank 1.

Embodiment 3

[0056] The difference between this embodiment and embodiment 1 is:

[0057] Such as figure 1 Shown, a kind of pretreatment method of starch slurry comprises the steps:

[0058] (A1), take by weight 12 parts of starch, 16 parts of water, 0.14 parts of strong alkali-water solution with a mass concentration of 32%, and set aside;

[0059] (A2), add water and strong alkali-water solution in feeding tank 1 and mix evenly, obtain mixed solution;

[0060] (A3), add the starch that accounts for 80% of the total amount of starch in the step (A1) to the mixed solution obtained in the step (A2) via the feeding tank 1, add the remaining starch after mixing evenly, and then stir evenly, that is Obtain starch slurry.

[0061] In the step (A3), the temperature of the mixed solution was kept at 32°C.

[0062] In the step (A2), after adding water and a strong alkali-water solution, add 2 parts by weight of sodium sulfate to the feeding tank 1.

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Abstract

The present invention relates to the technical field of starch treatment, in particular to a pretreatment method and system for starch slurry, the pretreatment method comprising the following steps: (A1), weighing starch, water, and strong alkali-water solution in parts by weight; ( A2), add water and strong alkali-water solution in the feeding tank and mix evenly, obtain mixed solution; (A3), add one-timely to account for the total amount of starch in step (A1) in the mixed solution that step (A2) obtains via feeding tank 20-80% of the starch, mix well and then add the rest of the starch, and then stir evenly to get the starch slurry. This method can not only avoid the gelatinization of the starch slurry before entering the reaction stage and waste the starch raw material, but also ensure that the pH value of the starch slurry reaches 11‑11.5, which meets the requirements for subsequent starch modification, and can also ensure that the starch slurry enters the reaction tank The concentration of 21-22 degrees Baume improves the reaction efficiency, thereby saving the cost of raw materials, and is simple to operate, convenient to control, and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of starch treatment, in particular to a method and system for pretreatment of starch slurry. Background technique [0002] Starch is a natural high-molecular carbohydrate composed of glucose. It has two structures of branched chain and straight chain. It is widely found in seeds, tubers and fruits of plants. It is a renewable, non-toxic, biodegradable, resource Rich green products. However, the defects in the structure and performance of natural native starch have affected its wide application. In industry, native starch is often used for various denaturation to improve its application performance. The most commonly used method is wet reaction. [0003] The first step of pulping in the current domestic modified starch wet production technology is mostly to add a certain amount of water to the pulping tank first, and then add the original starch to disperse the starch in the water. The concentration of the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B30/14C08B30/16
Inventor 李毅伦李向东
Owner 东莞建泰生物科技有限公司
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