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Sugar production clarifying production line

A production line and heating device technology, applied in the production of sucrose, sugar production, purification of sugar juice, etc., can solve the problems of high sulfur content of finished sugar, high color value of finished sugar, poor clarification effect, etc. The effect of high separation efficiency and less auxiliary equipment

Active Publication Date: 2015-08-12
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a sugar clarification production line, which solves the problem of the poor clarification effect of the traditional sulfite sugar clarification process, high sulfur content and low quality of the finished sugar, and the color of the finished sugar obtained by processing sugarcane juice with traditional membrane separation technology. high value technical issues

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0027] A sugar clarification production line, including a mixed juice box 3, a decanter centrifuge 4, a first heating device, a sulfur fumigation device, a second heating device, a multi-stage ceramic membrane ultrafiltration system 16, and a plate and frame filter press connected in sequence Machine 18.

[0028] A first buffer tank 5 is connected between the decanter centrifuge 4 and the first heating device, a second buffer tank 11 is connected between the sulfur fumigation device and the second heating device, and the second heating device and the multi-stage ceramic membrane A third buffer tank 15 is connected between the ultrafiltration systems.

[0029] The inlet of the mixed juice box 3 is connected with the pressing and extracting section 1 of the sugarcane sugar factory and the lime milk tank 2, the outlet of the mixed juice box 3 is connected with the inlet of the decanter centrifuge 4, and the outlet of the decanter centrifuge 4 is connected with the inlet of the fi...

Embodiment 2

[0036] This embodiment is an example of actual production using the sugar clarification production line described in Example 1, and the specific steps are as follows:

[0037] (1) Liming: adding milk of lime with a concentration of 8.0 ° Be to the mixed juice of the sugarcane sugar factory, adjusting the pH value of the sugarcane juice to 7.6, preventing the sucrose in the sugarcane juice from converting under acidic conditions, resulting in the loss of sucrose, and obtaining limed cane juice;

[0038] (2) Coarse filtration: Utilize a decanter centrifuge with an aperture of 50.0 μm to filter the ash-added sugarcane juice to obtain the coarsely filtered sugarcane juice;

[0039] (3) The first heating: heat the coarsely filtered sugarcane juice to 55°C with a tube-and-tube heat exchanger, which is beneficial to the sulfur fumigation process of the next step on the SO 2 The absorption of sugarcane juice is obtained by heating for the first time;

[0040] (4) Sulfur fumigation: ...

Embodiment 3

[0053] This embodiment is another example of actual production using the sugar clarification production line described in Embodiment 1, and the specific operation steps are as follows:

[0054] (1) Liming: adding milk of lime with a concentration of 8.5 ° Be to the mixed juice of the sugarcane sugar factory, adjusting the pH value of the sugarcane juice to 7.5, preventing the sucrose in the sugarcane juice from converting under acidic conditions, resulting in the loss of sucrose, and obtaining limed cane juice;

[0055] (2) Coarse filtration: Utilize a decanter centrifuge with an aperture of 150.0 μm to filter the ash-added sugarcane juice to obtain the coarsely filtered sugarcane juice;

[0056] (3) The first heating: heat the coarsely filtered sugarcane juice to 65°C with a tube-and-tube heat exchanger, which is beneficial to the sulfur fumigation process of the next step on the SO 2 The absorption of sugarcane juice is obtained by heating for the first time;

[0057] (4) ...

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Abstract

A sugar production clarifying production line comprises a mixed juice box, a horizontal screw-type centrifuge, a first heating device, a sulfur fumigating device, a second heating device, a multi-stage ceramic membrane ultrafiltration system, and a plate-frame filter press, which are connected in sequence. During the clarification process of mixed sugarcane juice, only a little amount of limestone and SO2 is added, so the sulfur content of finished sugar is very low, and moreover the sugar has the advantages of low color value, high purity, and low ash content, and is capable of meeting the requirements of high-end customers. Furthermore, during the sugarcane juice clarification process, a ceramic membrane is used to carry out ultrafiltration and clarification; because the membrane resistance due to the scales on the ceramic membrane is small, the membrane permeation flux is large when the ceramic membrane is used to filter sugarcane juice, moreover, the decay speed of membrane flux is slow, the high membrane flux can last for a long time, thus the membrane washing period is prolonged, and the membrane washing frequency is reduced.

Description

technical field [0001] The invention relates to the technical field of sugar refining engineering, in particular to a sugar refining clarification production line. Background technique [0002] my country is the third largest sugar producing country in the world, with an annual output of more than 10 million tons of white granulated sugar. At present, according to different sugar clarification processes, there are mainly two methods for producing farmland white granulated sugar: the first is the sulfurous acid method, and the second is the carbonic acid method. Although these two methods can produce white granulated sugar meeting national quality standards, there are more or less deficiencies in both the sulfurous acid method and the carbonic acid method. Sulfurous acid method adds more SO in the clarification process 2 As a clarifying agent, there will be more sulfur residues in the finished sugar, which has certain limitations for high-end customers; while the carbonic a...

Claims

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Application Information

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IPC IPC(8): C13B20/00C13B20/16C13B20/06
CPCC13B20/00C13B20/06C13B20/16C13B20/165
Inventor 李凯李文杭方学陆海勤谢彩锋
Owner GUANGXI UNIV
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