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Method for predicting crystallization state of sugarcane sugar boiling process

A technology of crystallization state and prediction method, which is applied in the field of sugarcane sugar production, to achieve the effect of facilitating timely response, improving accuracy, and strong real-time performance

Active Publication Date: 2013-09-25
GUANGXI UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] At present, there is no published literature and patent reports on a method for predicting the crystallization state of sugarcane boiling process

Method used

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  • Method for predicting crystallization state of sugarcane sugar boiling process
  • Method for predicting crystallization state of sugarcane sugar boiling process
  • Method for predicting crystallization state of sugarcane sugar boiling process

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Embodiment Construction

[0049] The technical solution of the present invention will be further described and illustrated with the accompanying drawings and embodiments below.

[0050] figure 1 It is a flow chart of specific steps of the method for predicting the crystallization state of the sugarcane boiling process described in the present invention. Take the implementation process of a certain sugar factory as an example to explain in further detail. Take the boiled massecuite as an example: the number of cooking cubes is 55m3; the syrup brix is ​​62Bx, the purity is: 85AP, the temperature is 65°C; the temperature of hot water is 68°C; the cooking stage is divided into: the initial stage, the bottom material stage, sorting stage, feeding stage, concentration stage, sugar release stage. The crystallization state prediction process of sugarcane sugar boiling process is as follows:

[0051] (1) Install an automatic monitoring platform for the crystallization process of sugar cane boiling in the sug...

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Abstract

The invention relates to a method for predicting the crystallization state of the sugarcane sugar boiling process. The method comprises the following steps of: establishing an original decision table by taking six factors comprising massecuite brix, massecuite temperature, vacuum degree, feeding flow, steam temperature and steam pressure as condition attributes and taking crystallization state level as a decision attribute, and performing discretization treatment on the original decision table; extracting a prediction rule of the crystallization state according to a rough set theory and storing the prediction rule of the crystallization state into an expert system knowledge base; performing rule matching by using an inference machine of an expert system according to the real-time value of the condition attributes and the existing rule of the knowledge base, and outputting the predicting result of the crystallization state; establishing an on-line crystallization state prediction learning model based on a support vector machine, and adding the predicting result of the crystallization state into the expert system knowledge base to realize on-line updating of the expert system knowledge base. The invention also provides a system for realizing the method. The system can accurately predict the crystallization state of the sugarcane sugar boiling process so as to effectively improve the automation level of the sugarcane sugar boiling process.

Description

1. Technical field [0001] The invention relates to the technical field of sugar cane sugar production, in particular to a method for predicting the crystallization state of the sugar cane cooking process. 2. Background technology [0002] The sugarcane boiling process is the most important link in sugarcane sugar production, and it is also the only process that has not been automatically controlled by sugarcane sugar enterprises in my country. The key factor is that there is no online measurement of the supersaturation of the sugar solution that affects the sugarcane sugar crystallization process. , even if it is indirectly measured by many other methods, the results are not ideal and cannot be used as a basis for judgment. The essence of the crystallization process of sugarcane boiled sugar is the process of liquid-solid conversion of syrup in the boiled sugar crystallization tank. The massecuite in the supersaturation metastable zone in the crystallization tank can make th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/14C13B25/06
Inventor 蒙艳玫余弦何海平陆冠成董振王小纯庞海锋叶俊科郑康元
Owner GUANGXI UNIV
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