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Device and method for preparing rice protein through magnetic field-assisted electrostatic separation

A rice protein, electrostatic separation technology, applied in the field of rice protein, to avoid volatile organic solvents and toxic substances, high yield and purity, and low cost.

Pending Publication Date: 2022-03-11
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many parameters in the charging and separation process (friction supercharger tube length, charging effect, collection area, electrode distance, etc.) will have a significant impact on the final separation result, and are still in the stage of exploration and optimization.

Method used

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  • Device and method for preparing rice protein through magnetic field-assisted electrostatic separation
  • Device and method for preparing rice protein through magnetic field-assisted electrostatic separation
  • Device and method for preparing rice protein through magnetic field-assisted electrostatic separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Example 1 A method for preparing rice protein by magnetic field-assisted electrostatic separation, comprising the following steps:

[0069] S1: The rice dregs were ground in a factory-scale air impact mill with the rotor frequency set to 40Hz, and then the ground material was air-classified into fine powder in the air classifier, the classifier wheel frequency, feed The volume and the frequency of the induced draft fan are set to 50Hz, 6.0kg / h and 50Hz respectively.

[0070] S2: The electric blower pump equipment of the feeding system provides a stable air flow, the gas flow rate is 7L / min, and the fine powder particles are stored in the intermittent fluidized bed equipment of the feeding system and the fine powder particles are fully contacted with the air flow mix. Enter the spiral friction booster tube to charge the material. The spiral friction booster tube is made of polytetrafluoroethylene (PTFE) tube, the inner diameter of the tube is 6mm, and the length of th...

Embodiment 2

[0073] Example 2 A method for preparing rice protein by magnetic field-assisted electrostatic separation

[0074]Same as Example 1, except that in S3, the electrode spacing is 10 cm, the voltage is 10 kv, and the electric field strength is 1 kv / cm. The purity results of rice protein in the negative electrode collection area are shown in image 3 , the yield results of rice protein in the negative electrode collection area are shown in Figure 4 .

Embodiment 3

[0075] Example 3 A method for preparing rice protein by magnetic field-assisted electrostatic separation

[0076] Same as Example 1, except that in S3, the electrode spacing is 20cm, the voltage is 20v, and the electric field strength is 1kv / cm. The purity results of rice protein in the negative electrode collection area are shown in image 3 , the yield results of rice protein in the negative electrode collection area are shown in Figure 4 .

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Abstract

The invention provides a device and method for preparing rice protein through magnetic field-assisted electrostatic separation, and belongs to the field of rice protein. The method comprises the following steps that S1, rice residues are ground in a grinding machine and then classified in an air classifier, and a fine powder material is obtained; s2, air flow is provided by a feeding system, so that the fine powder material particles are carried in the air flow and enter a friction pressurizing pipe to carry out friction electrification charging on the fine powder material; and S3, after the fine powder material is electrified, the fine powder material enters a separation chamber under airflow conveying, and after the electrified fine powder material is subjected to the action of an electric field formed by the two copper electrodes, a magnetic field formed by the two permanent magnets and a gravity field, rice protein particles are separated. The method is simple in process, remarkable in effect, low in cost, free of pollution and waste, free of use of volatile organic solvents, toxic substances and the like, environmentally friendly and safe and has wide development and market application prospects.

Description

technical field [0001] The invention relates to the technical field of rice protein, in particular to a device and method for preparing rice protein through magnetic field-assisted electrostatic separation. Background technique [0002] Animal protein has become an indispensable food for human beings due to its excellent edible quality and nutritional content. However, raising animals in an energy-intensive manner requires large amounts of arable land, water, grain and other crops. Among them, the conversion of edible vegetable protein has become a new life trend. As a plant-based protein, rice protein is rich in nutrients and comprehensive, and it is also a good source of protein in terms of nutritional quality. Therefore, it is of great value to isolate rice protein from rice. [0003] Traditional methods for obtaining vegetable protein components mainly include wet separation and dry separation. Among them, wet separation requires the use of a large amount of water (5...

Claims

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Application Information

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IPC IPC(8): B03C1/023B03C1/005B02C23/14
CPCB03C1/023B03C1/005B02C23/14
Inventor 谢明勇刘欢肖祖平付爱平
Owner NANCHANG UNIV
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