CN102517402B - Method for clarifying clear juice from saccharose refinery by using high gradient magnetic separation technology - Google Patents
Method for clarifying clear juice from saccharose refinery by using high gradient magnetic separation technology Download PDFInfo
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- CN102517402B CN102517402B CN201110406164.0A CN201110406164A CN102517402B CN 102517402 B CN102517402 B CN 102517402B CN 201110406164 A CN201110406164 A CN 201110406164A CN 102517402 B CN102517402 B CN 102517402B
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Abstract
A method for clarifying clear juice from a saccharose refinery by using a high gradient magnetic separation technology comprises steps of: adding ferriferrous oxide magnetic powder into a sugarcane clear juice; stirring with a uniform speed; insulating for 3-5 min at 60-90 DEG C; introducing the clear juice through a magnetic field with a magnetic field intensity of 0.5-1.5 T; sending the material liquid through a magnetic powder separator rapidly; and collecting the treated material liquid. Based on a physical clarification technology of magnetic separation for separating and clarifying impurities, the invention provides a physical clarification technology for secondary clarification in saccharose manufacture. The technology does not require addition of chemical clarifier and has obvious separating effect; and the clear juice and subsequent syrup thereof have god thermal stability. Test results show that the technology can be used for clarification and impurity removal of syrup, and the equipment has small land occupation and saves energy. Therefore, the method can reduce production cost of an enterprise and has promising development prospect in sugar manufacture industry.
Description
Technical field
The invention belongs to the method for utilizing the clear juice of High-gradient Magnetic isolation technique clarification cane sugar factory.
Background technology
The sugarcane juice extracting from sugarcane has very complicated composition, wherein, except the more sucrose of content, also has various inorganic and organic non-sugar impuritiess.And the content of these non-sugars and kind along with the difference of the situations such as sugar cane breed, cultivation mode, weather, soil and squeeze juice extracting condition difference.On the whole, the existence of these non-sugars, has influence on the extraction of Sucrose and the quality of product the most at last.Therefore the task of cane sugar factory clarification workshop section is to the clarifying treatment of purifying from the sugarcane juice of squeezing section, the object of clarification is to remove non-sugar, improve juice purity, and effort reduces colour and viscosity, for follow-up Zhu Tang workshop section provides high-quality feedstocks syrup, cane juice clarification process is exactly the process of a colloid chemistry in fact.
The method of cane juice clarification is a lot, such as ion exchange method, electroosmose process, syrup floatation, membrane separation process, ion exclusion method etc.Ion exchange method is to utilize ion exchange principle to carry out the desalination of dilute juice, decolouring processing, is used for abroad producing refined sugar.Electroosmose process, take selective ion exchange membrane as separating medium, using DC electric field as motivating force, can be separated electrolyte ion component from the aqueous solution and other not charged components.Syrup floatation is to utilize whisking machine to break into broken bubble containing bubble gum slurry to carry out buoyance lift, is brought on liquid level by skim together with various suspended impurities adhere to bubble, and the syrup of bottom becomes peace and quiet syrup.In membrane separation process, there are again ultrafiltration process and reverse osmosis method.The semi-permeable membranes that ultrafiltration process purification syrup is used, can let slip the small molecules such as water and sucrose, but does not allow pigment, protein and colloidal particle pass through.Reverse osmosis method is equivalent to the anti-process of osmose process, can be used for replacing syrup to purify and evaporation in sugar industry.Current application ultrafiltration process and reverse osmosis method are purified and the key that concentrates syrup can be the good semi-permeable membranes of processability, this technology is except requiring film to have very high selectivity, also require film to have chemical stability, will grow work-ing life and be difficult for polluting, it is large etc. that physical strength is wanted.Ion exclusion method is that the distribution difference in liquid phase and solid phase, as basis, utilizes ion exchange resin by ionic solute and non-ionic type solute method disconnected from each other take solute.Although above-mentioned technology has lot of advantages, but because sucrose product price is generally higher compared with cost low and that new technology clarification is purified, be difficult to large-scale promotion in sugar industry and use, therefore those skilled in the art are making great efforts to seek inexpensive defecation method.
Magnetic separation technique utilizes the effect of externally-applied magnetic field to change the physicochemical property of material, makes can change in material, and the material that possesses magnetic is separated.Magnetic separation method can be divided into three kinds of magnetic agglomeration separation, magnetic disc separation and high-gradient magnetically separatings by principle of device.Magnetic separation technique as Physical Separation Technology be applied to the earliest the screening of ore, kaolinic decolouring is brightened, and is successfully applied to urban industry wastewater treatment.High-gradient Magnetic isolation technique (HGMS) is to adopt the magnetic matrix that can produce high magnetic field gradients, obtains high magnetic force and realizes the collecting to microfine weakly magnetic material, reaches the object of removing microfine weakly magnetic material.High-gradient Magnetic isolation technique can be applied to industrial smoke dedusting and field of waste water treatment, be applied to wastewater treatment and will first add " magnetic kind " and coagulating agent, strengthen the ability of absorption impurity, but utilize the magnetic separation technique clarification clear juice of cane sugar factory aspect there are no report.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of chemical clarification agent, separating effect of not adding in subsequent disposal and significantly utilizes High-gradient Magnetic isolation technique to clarify the method for the clear juice of cane sugar factory.
The present invention solves the problems of the technologies described above with following technical scheme:
The processing step of the inventive method is:
Utilize a method for magnetic separation technique clarifying treatment sugar cane juice, it is characterized in that processing step is:
(1) add Fe 3 O 4 magnetic powder in sugar cane juice, magnetic powder addition is the clear juice of 0.1～0.3g/150ml;
(2) at the uniform velocity stir the feed liquid 1～5min adding after magnetic kind;
(3) feed liquid after stirring reaction is incubated 3～5min under the condition of 60～90 ℃;
(4) feed liquid that insulation is processed is with 75～225mL/min flow velocity rapidly by magnetic field, and magneticstrength is 0.5～1.5T;
(5) while hot feed liquid is passed through to magnetic separator, the feed liquid after collection and treatment fast.
Ferroferric oxide powder is analytical pure nano particle.
It is 100～300pm that stirrer stirs speed.
The optimum reaction condition that magnetic separation technique is further clarified the clear juice in sub-method sugar refinery is: the clear juice of magnetic iron powder add-on 0.1g/150mL, and stirring velocity is 100rpm, magnetization churning time 3min, magneticstrength is 1.5T.
The clear juice optimum reaction condition that magnetic separation technique is further clarified lime method processing is: magnetic iron powder add-on is the clear juice of 0.1g/150mL, and stirring velocity is 100rpm, magnetization churning time 3min, and magneticstrength is 1T.
The present invention is at physics clarification process---on the basis of magnetic separation technique separating clarifying impurity, the physics clarification process of a cane sugar manufacture post-defecation is provided, this technique is not added chemical clarification agent in subsequent disposal, separating effect is obvious, clear juice and follow-up syrup Heat stability is good thereof, test-results shows that this technology can be for juice liming removal of impurities process, and this occupation area of equipment is little, energy-conservation, can reduce enterprise's production cost, have good development prospect in sugar-refining industry.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that the present invention utilizes magnetic separation technique clarifying treatment sugar cane juice.
Embodiment
(1) process the clear juice of sulfitation sugar mill
Embodiment 1:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.1g, be to stir 5min under 100rpm in stirrer speed, at 90 ℃ of water bath with thermostatic control pot temperatures, be incubated 5min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.5T by magneticstrength while hot under 75mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 0.64, and colour index reduces by 15.56%.
Embodiment 2:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.1g, be to stir 3min under 200rpm in stirrer speed, under thermostat water bath temperature 60 C, be incubated 5min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.0T by magneticstrength while hot under 150mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 0.67, and colour index reduces by 9.46%.
Embodiment 3:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.2g, be to stir 1min under 300rpm in stirrer speed, at 90 ℃ of water bath with thermostatic control pot temperatures, be incubated 3min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.0T by magneticstrength while hot under 75mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 0.56, and colour index reduces by 8.67%.
Embodiment 4:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.3g, be to stir 3min under 200rpm in stirrer speed, at 90 ℃ of water bath with thermostatic control pot temperatures, be incubated 5min, making syrup flow velocity by peristaltic pump is the magnetic field that is 0.5T by magneticstrength while hot under 75mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 2.03, and colour index reduces-6.72%.
Embodiment 5:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.3g, be to stir 2min under 100rpm in stirrer speed, under thermostat water bath temperature 60 C, be incubated 3min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.0T by magneticstrength while hot under 225mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is-0.82, and colour index reduces by 9.86%.
(2) process the clear juice of lime method
Embodiment 1:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.1g, be to stir 5min under 300rpm in stirrer speed, under thermostat water bath temperature 60 C, be incubated 5min, making syrup flow velocity by peristaltic pump is the magnetic field that is 0.5T by magneticstrength while hot under 225mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 0.16, and colour index reduces-6.54%.
Embodiment 2:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.1g, be to stir 1min under 200rpm in stirrer speed, at 90 ℃ of water bath with thermostatic control pot temperatures, be incubated 3min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.0T by magneticstrength while hot under 225mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 0.55, and colour index reduces by 0.37%.
Embodiment 3:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.2g, be to stir 3min under 300rpm in stirrer speed, under thermostat water bath temperature 60 C, be incubated 3min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.0T by magneticstrength while hot under 75mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 0.21, and colour index reduces by 3.23%.
Embodiment 4:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.3g, be to stir 1min under 300rpm in stirrer speed, at 90 ℃ of water bath with thermostatic control pot temperatures, be incubated 5min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.5T by magneticstrength while hot under 75mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is 0.3, and colour index reduces by 59.71%.
Embodiment 5:
Every part of clear juice sample is got 150mL and is tested, at room temperature add magnetic kind ferroferric oxide powder 0.3g, be to stir 2min under 100rpm in stirrer speed, under thermostat water bath temperature 60 C, be incubated 5min, making syrup flow velocity by peristaltic pump is the magnetic field that is 1.0T by magneticstrength while hot under 150mL/min, clear juice after filtration magnetization is removed absorption the magnetic of impurity, get filtered juice sample liquid and carry out analyzing and testing, the relative Normal juice blank of detected result group purity difference is-0.9, and colour index reduces by 45.42%.
Claims (3)
1. utilize a method for High-gradient Magnetic isolation technique clarifying treatment sugar cane juice, it is characterized in that processing step is:
(1) add Fe 3 O 4 magnetic powder in sugar cane juice, magnetic powder addition is the clear juice of 0.1～0.3g/150ml;
(2) at the uniform velocity stir the feed liquid 1～5min adding after magnetic kind;
(3) feed liquid after stirring reaction is incubated 3～5min under the condition of 60～90 ℃;
(4) feed liquid that insulation is processed is with 75～225mL/min flow velocity rapidly by magnetic field, and magneticstrength is 0.5～1.5T;
(5) while hot feed liquid is passed through to magnetic separator, the feed liquid after collection and treatment fast;
Wherein:
Ferroferric oxide powder is analytical pure nano particle;
It is 100～300rpm that stirrer stirs speed.
2. the method for utilizing High-gradient Magnetic isolation technique clarifying treatment sugar cane juice as claimed in claim 1, it is characterized in that magnetic separation technique further clarifies the optimum reaction condition of the clear juice in sub-method sugar refinery and be: the clear juice of magnetic iron powder add-on 0.1g/150mL, stirring velocity is 100rpm, magnetization churning time 3min, magneticstrength is 1.5T.
3. the method for utilizing High-gradient Magnetic isolation technique clarifying treatment sugar cane juice as claimed in claim 1, it is characterized in that magnetic separation technique further clarifies the clear juice optimum reaction condition of lime method processing and be: magnetic iron powder add-on is the clear juice of 0.1g/150mL, stirring velocity is 100rpm, magnetization churning time 3min, magneticstrength is 1T.
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| CN103276115B (en) * | 2013-05-11 | 2014-10-01 | 湖南湘易康制药有限公司 | Production technology of medicinal sucrose |
| CN107341614A (en) * | 2017-07-10 | 2017-11-10 | 广西宏智科技有限公司 | Based on internet+cane sugar manufacture factory chemical analysis management system |
| CN108676926B (en) * | 2018-06-01 | 2022-04-22 | 广西科技师范学院 | Production method of white granulated sugar |
| CN109338019A (en) * | 2018-11-30 | 2019-02-15 | 合浦县工业和信息化局 | Sugarcane cleans automatically and the method for cane sugar manufacture |
| CN109468418A (en) * | 2018-11-30 | 2019-03-15 | 合浦县工业和信息化局 | The cane sugar manufacture method of sucrose recovery rate can be improved |
| CN115336658A (en) * | 2022-07-18 | 2022-11-15 | 广州抒戈糖业有限公司 | Light-colored liquid crystal sugar syrup and preparation method thereof |
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