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All-component utilization sugar cane-to-sugar system and treatment method thereof

A full-component, sugarcane technology, applied in the direction of purification, sucrose production and application using physical methods, can solve the problems of using a large number of chemicals, secondary pollution, etc., and achieve the effect of reducing investment and operating costs and avoiding accumulation.

Inactive Publication Date: 2018-04-20
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems that a large amount of waste liquid and waste materials will be produced in the sugar cane sugar making process of the prior art, and a large amount of chemical agents need to be used in the process of waste liquid treatment and secondary pollution may be caused, the present invention provides a pure physical separation based Sugar cane sugar production system utilizing components and its processing method

Method used

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  • All-component utilization sugar cane-to-sugar system and treatment method thereof
  • All-component utilization sugar cane-to-sugar system and treatment method thereof
  • All-component utilization sugar cane-to-sugar system and treatment method thereof

Examples

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Embodiment 1

[0091] The present embodiment provides a kind of whole component utilization sugar cane sugar making system, such as figure 1 As shown, the system includes a pretreatment unit, a multistage membrane filtration unit and a concentrate treatment unit;

[0092] The pretreatment unit includes a vibrating screen 1 and a solid-liquid separation device 2, the liquid outlet of the vibrating screen 1 is connected to the feed port of the solid-liquid separation device 2; the vibrating screen is a two-stage vibrating screen, the first stage The screen mesh precision is 40 mesh, and the second stage screen mesh precision is 120 mesh; the solid-liquid separation device 2 is a scraper type self-cleaning filter;

[0093] The multi-stage membrane filtration unit includes a clarification membrane 3, a decolorization membrane 4, a concentration membrane 5 and a reverse osmosis membrane 6, the liquid outlet of the solid-liquid separation device 2 is connected to the feed port of the clarification...

Embodiment 2

[0104] This embodiment provides a sugar cane sugar production system utilizing all components, the system includes a pretreatment unit, a multi-stage membrane filtration unit and a concentrate treatment unit;

[0105] The pretreatment unit includes a vibrating screen 1 and a solid-liquid separation device 2, the liquid outlet of the vibrating screen 1 is connected to the feed port of the solid-liquid separation device 2; the vibrating screen is a two-stage vibrating screen, the first stage The screen mesh precision is 60 mesh, and the second stage screen mesh precision is 150 mesh; the solid-liquid separation device 2 is a scraper type self-cleaning filter;

[0106] The multi-stage membrane filtration unit includes a clarification membrane 3, a decolorization membrane 4, a concentration membrane 5 and a reverse osmosis membrane 6, the liquid outlet of the solid-liquid separation device 2 is connected to the feed port of the clarification membrane 3, and the clarification membra...

Embodiment 3

[0117]This embodiment provides a sugarcane sugar production system utilizing all components. The system structure refers to Embodiment 1, the difference is that: the first-stage sieve has a precision of 20 mesh, and the second-stage sieve has a precision of 100 mesh; The molecular weight cut-off of the clarification membrane 3 is 30000Da, the decolorization membrane 4 is a polyamide roll-type ultrafiltration membrane module, and the molecular weight cut-off is 1000Da, and the concentrated membrane 5 is a polyamide roll-type membrane module, and the molecular weight cut-off is 150Da. The reverse osmosis membrane 6 module is a polyamide roll-type membrane module, and the standard desalination rate is 99.3%.

[0118] The treatment method of the sugarcane sugar production system refers to the method in Example 1, the difference is: in step (1), the pH is adjusted to 6.8 and heated to 55 ° C; in step (2), the clarification membrane 3 is clarified at 0.5 MPa, The filtration temperat...

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Abstract

The invention provides an all-component utilization sugar cane-to-sugar system and a treatment method thereof. The all-component utilization sugar cane-to-sugar system comprises a pretreatment unit, amulti-stage membrane filtration unit and a concentrated liquid treatment unit, wherein the pretreatment unit comprises a vibration sieve and a solid-liquid separation device, the multi-stage membranefiltration unit comprises a clarification membrane, a decolorization membrane, a concentration membrane and a reverse osmosis membrane, and the concentrated liquid treatment unit comprises a horizontal centrifuge and a rotary drum vacuum filter. With the system and the method of the present invention, the accumulation of the concentrated liquid of the clarification membrane in the system can be avoided, and the high-value utilization of the concentrated liquid of the decolorization membrane, the permeated liquid of the concentration membrane and the crystallization mother liquor can be achieved; and no chemical agent is added during the whole process, all the components in the sugar cane mixing juice are subjected to high-value utilization, no waste honey is produced, and the sucrose recovery rate can be greater than 95%.

Description

technical field [0001] The invention belongs to the technical field of sugar production, and relates to a sugarcane sugar production system utilizing all components and a processing method thereof, in particular to a sugarcane sugar production system utilizing all components based on pure physical separation and a processing method thereof. Background technique [0002] The existing sugarcane sugar production process includes sugarcane pressing and extraction, cleaning of sugarcane mixed juice, evaporation and concentration of clear juice, crystallization, honey separation and drying. The clarification and decolorization effect of the mixed juice directly determines the quality of the finished sugar. The traditional cleaning process is to add a large amount of lime and sulfur dioxide (sulfurous acid method) to the mixed juice, or add lime and carbonic acid gas (carbonic acid method), and then separate and precipitate to remove non-sugar impurities in the mixed juice to reduc...

Claims

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Application Information

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IPC IPC(8): C13B20/16C13B25/00C13B30/02
CPCC13B20/16C13B20/165C13B25/00C13B30/002C13B30/02
Inventor 罗建泉万印华
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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