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Intelligent pollution prevention and control method used in starch sugar desalination process

A starch sugar and desalination technology, applied in the field of starch sugar desalination, can solve the problems of not taking into account the pollution of the membrane system, the difficulty of stable operation of the system, and the difficult application prospects, etc., to improve stability and efficiency, reduce material loss, Guaranteed effect of desalination efficiency

Pending Publication Date: 2021-11-09
郑州中科新兴产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Using electrodialysis to remove the salt in the sugar solution is a new desalination process. There are some research reports. CN105771663 A discloses an electrodialysis device for the desalination of starch sugar hydrolyzate. The device system includes the former The processing device system, electrodialysis device system and cleaning device system are used for the desalination and refining of starch sugar. They only apply electrodialysis technology to the starch sugar desalination process, and do not take into account the pollution of the membrane system during the starch sugar electrodialysis process. , the whole system is difficult to run stably
CN 109761434 A discloses a combined process method for desalination of starch hydrolyzate, which belongs to the technical field of sugar desalination, and relates to a combined process method for desalination of starch hydrolyzate, which is characterized by less sugar leakage and improved desalination efficiency , but this method is difficult to have application prospects in the stable operation of the whole system and the scale-up experiment
[0005] In summary, in view of the advantages and disadvantages of the electrodialysis desalination process, the intelligent pollution prevention and control of the entire starch sugar desalination system is the core issue restricting the application of electrodialysis technology in the starch sugar desalination

Method used

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  • Intelligent pollution prevention and control method used in starch sugar desalination process
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  • Intelligent pollution prevention and control method used in starch sugar desalination process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The starch sugar is first pasteurized at 75°C for 10 seconds, and then enters the high-efficiency heat exchanger, and the flow rate of the high-efficiency heat exchanger is 3m 3 / h, after heat exchange, the material is stable at 30°C and enters 5m 3 After 20 minutes of settlement, most of the impurities can settle at the bottom, which effectively reduces the pressure of the subsequent processing unit. 5m 3 The supernatant of the feeding tank is pumped to the security filter, and the flow rate of the security filter is controlled to be 3 m 3 / h, the pressure difference between the inlet and outlet is 0.2 Mpa, the pore size of the filter core of the security filter is 0.2µm PP cotton, after being filtered by the security filter, the starch sugar enters the ultrafiltration unit. The fresh water effluent flow rate of the ultrafiltration system is 3m 3 / h, concentrated water outlet flow rate is 8 m 3 / h, the wall thickness is 0.02 μm, the inner diameter of the membrane f...

Embodiment 2

[0038] The starch sugar is first pasteurized at 80°C for 10 seconds, and then enters the high-efficiency heat exchanger, and the flow rate of the high-efficiency heat exchanger is 4m 3 / h, after heat exchange, the material is stable at 30°C and enters 5m 3 After 20 minutes of settlement, most of the impurities can settle at the bottom, which effectively reduces the pressure of the subsequent processing unit. 5m 3 The supernatant of the feeding tank is pumped to the security filter, and the flow rate of the security filter is controlled to be 4 m 3 / h, the pressure difference between the inlet and outlet is 0.3 Mpa, the pore size of the filter element of the security filter is 0.3 µm PP cotton, after being filtered by the security filter, the starch sugar enters the ultrafiltration unit. The fresh water effluent flow rate of the ultrafiltration system is 3m 3 / h, concentrated water outlet flow rate is 8 m 3 / h, the wall thickness is 0.02 μm, the inner diameter of the membra...

Embodiment 3

[0040] The starch sugar is first pasteurized at 85°C for 10 seconds, and then enters the high-efficiency heat exchanger, and the flow rate of the high-efficiency heat exchanger is 4m 3 / h, after heat exchange, the material is stable at 30°C and enters 5m 3 After 20 minutes of settlement, most of the impurities can settle at the bottom, which effectively reduces the pressure of the subsequent processing unit. 5m 3 The supernatant of the feeding tank is pumped to the security filter, and the flow rate of the security filter is controlled to be 6 m 3 / h, the pressure difference between the inlet and outlet is 0.4 Mpa, the pore size of the filter core of the security filter is 0.4 µm PP cotton, after being filtered by the security filter, the starch sugar enters the ultrafiltration unit. The fresh water effluent flow rate of the ultrafiltration system is 3m 3 / h, concentrated water outlet flow rate is 8 m 3 / h, the wall thickness is 0.02 μm, the inner diameter of the membrane ...

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Abstract

The invention relates to an intelligent pollution prevention and control method used in a starch sugar desalination process. The intelligent pollution prevention and control method mainly comprises a set of complete cleaning system and two parallel starch sugar desalination processes, and it is guaranteed that at least one line is operated for starch sugar desalination. Detection indexes of the rear end of each process section are monitored online in real time through the cleaning system, if the detection indexes exceed a set value, the control system can be automatically switched to another device of the parallel process, and the cleaning system can only conduct independent cleaning on the device which is seriously polluted. Through the control of the intelligent online cleaning system, efficient cleaning can be realized, the consumption of cleaning water is reduced, the operation stability of equipment is improved, and the long-term stable operation of the starch sugar desalting process can be ensured. The invention provides an effective solution for the pollution problem in the starch sugar electrodialysis desalination process from the aspects of on-line monitoring, pretreating, equipment operation, system cleaning and the like.

Description

technical field [0001] The invention belongs to the technical field of starch sugar desalination, and in particular relates to an intelligent pollution prevention and control method in the process of starch sugar desalination. Background technique [0002] Sugar is an indispensable nutrient for human life activities. Sugar is not only enough to provide 60%-70% of calories for people, but also an important substance that constitutes human cells. There are many types of carbohydrates that people ingest from daily food, the main ingredient of which is starch sugar. Starch sugar is decomposed by amylase in the human body and finally absorbed by the human body. Corn accounts for the highest proportion of grain production, and using corn as a raw material for starch sugar is a major technical process in many countries. [0003] Corn is used as raw material to produce starch sugar. During the processing of corn, many impurities are brought by raw materials, water and catalysts. A...

Claims

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Application Information

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IPC IPC(8): B01D61/58C13K1/08
CPCB01D61/58C13K1/08B01D61/145B01D61/422B01D2311/2692B01D2311/2649Y02A20/124
Inventor 刘艳杰聂毅张曼曼翟栋海彬
Owner 郑州中科新兴产业技术研究院
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