CN109971892A - A kind of sugar-cane juice is clarified without sulphur and desalination system and method - Google Patents
A kind of sugar-cane juice is clarified without sulphur and desalination system and method Download PDFInfo
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- CN109971892A CN109971892A CN201910359500.7A CN201910359500A CN109971892A CN 109971892 A CN109971892 A CN 109971892A CN 201910359500 A CN201910359500 A CN 201910359500A CN 109971892 A CN109971892 A CN 109971892A
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- sugar
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- sulphur
- desalination
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
Abstract
The invention belongs to sugar industry field, a kind of sugar-cane juice is disclosed without sulphur clarification and desalination system and method.The system comprises syrup levitating device, floating juice vaporising device, adsorbent equipment, electrodialysis desalination device, eluent vaporising device and compound fertilizer preparation facilities.It after milk of lime and phosphoric acid is added in sugar-cane juice, is separated through syrup levitating device, obtains floating juice and dross；Resulting floating juice is concentrated by evaporation to 25~45 ° of Bx, and raw sugar slurry is obtained, and then successively handles through macroporous resin adsorption and electrodialysis desalination is handled, obtain clear syrup and concentrate；Gained dross and concentrate are through being mixed with compound fertilizer；With ethanol elution macroreticular resin, eluent is obtained, eluent obtains pigment through being concentrated by evaporation.System of the invention does not generate calcium carbonate alkaline filter mud without carbonation and sulphur acid neutralizing unit, does not use SO2, and can realize waste full resource utilization, environmental benefit, economic benefit and social benefit highly significant.
Description
Technical field
The invention belongs to sugar industry fields, and in particular to a kind of sugar-cane juice is clarified without sulphur and desalination system and method.
Background technique
Currently, sugar industry uses two kinds of technique production plantation white sugars, the i.e. peace and quiet technology of carbonatation process and sulfurous method substantially.
Carbonatation process generates a large amount of alkaline (8.0 < pH < 11) solid waste-filter mud (wet filter mud is to raw material than being about 5-10%), because
Processing is difficult, and discharge amount is big, pollutes to environment, and limits its application.Sulfurous method sugar refining technology: due to sulfurous acid pair
The reducing bleach effect of pigment is unstable, and sugar products is put long returns color, and ash content, insoluble matter impurity content are high, and product sulfur content is in 20mg/
Kg or more (standard GB/T 317-2006 provides level-one white granulated sugar sulfur content≤30mg/kg), with domestic and international purification sugar products sulfur-bearing
Still there is a big difference for standard of the amount less than 6mg/kg, influences sugar products safety, currently, the white granulated sugar of many sulfitation sugar mills is uncomfortable
For producing soda, medicine and high-quality food；In addition, larger (dosage is about 0.1% pair of sugarcane to sulfur consumption in technique
Than), the SO that when burning generates2Gas is larger to environment and human body harm.In addition, because sugarcane itself exists in sugar manufacturing process
A large amount of ash contents, such as potassium, sodium, magnesium, calcium, sulfate radical, silicate and phosphate radical are evaporating, are boiling the easy shape of processes such as sugar and crystallization
At incrustation, while because a large amount of inorganic salts are to make mellite, significantly reducing sugar withdrawal, (for molasses to sugarcane than about 3%, wherein 1g is non-
Sugar takes away about 1g total reducing sugar).Requirement with sugar products standard and consumer to product quality is continuously improved, traditional sugar clarification
Technique is by huge challenge, it would be highly desirable to new cane juice clarification technique is found, to obtain the sugar products of better quality.
External Closed Circulation in Sugar Production is that two-step method refining refined sugar mode and China's One-step production arable land white granulated sugar mode have centainly
Difference, raw sugar produce raw sugar using lime method clarification process, then by peace and quiet technologies such as charcoal post, exchanger resin or UF membranes
Further clarification, the juice for obtaining high-quality carry out purified sugar production.More advanced liquid glucose purification method have membrane separation process, from
Sub- exchange process, membrane separation process also do not show in sugar refinery's application of low added value of product so far since membrane material, film attenuation problem are more
Model, ion-exchange is more in external sugar refinery's application, and the country also introduced advanced ion exchange equipment, but existed
Quality of material requires the problems such as high, complicated for operation, and domestic sugar refinery fails to promote.
Therefore, sugaring field there is an urgent need to develop it is a kind of can satisfy China's sugar products production efficient no sulphur cane juice clarification and
Desalination new system and method reform the deficiency of traditional carbonatation process and sulfurous method system.
Summary of the invention
In place of the above shortcoming and defect of the existing technology, the primary purpose of the present invention is that providing a kind of sugarcane
Juice is clarified without sulphur and desalination system.
Another object of the present invention is to provide a kind of sugar-cane juices without sulphur clarification and desalination process.
The object of the invention is achieved through the following technical solutions:
A kind of sugar-cane juice is clarified without sulphur and desalination system, including syrup levitating device, floating juice vaporising device, absorption dress
It sets, electrodialysis desalination device, eluent vaporising device and compound fertilizer preparation facilities；Floating juice is arranged in the syrup levitating device
Outlet and dross outlet, floating juice outlet are connected to floating juice vaporising device, and dross outlet is connected to compound fertilizer preparation facilities；
The floating juice vaporising device is arranged thick syrup outlet and is connected to adsorbent equipment；The adsorbent equipment is connected to electrodialysis desalination dress
It sets, and eluent outlet is set and is connected to eluent vaporising device；Clear syrup outlet and dense is arranged in the electrodialysis desalination device
The outlet of contracting liquid, concentrated solution outlet are connected to compound fertilizer preparation facilities.
Further, the adsorbent equipment refers to macroporous resin adsorption device.
Further, the compound fertilizer preparation facilities refers to mixed granulation machine.
A kind of sugar-cane juice is clarified without sulphur and desalination process, includes the following steps:
(1) it after being separately added into a certain amount of milk of lime and phosphoric acid in sugar-cane juice, separates, is floated through syrup levitating device
Juice and dross；
(2) by the resulting floating juice of step (1), 25~45 ° of Bx is concentrated into through floating juice vaporising device, obtain raw sugar slurry；
(3) the resulting raw sugar slurry of step (2) is successively subjected to adsorption treatment through macroporous resin adsorption device and electrodialysis is de-
Salt device carries out desalting processing, obtains clear syrup and concentrate；
(4) concentrate that the resulting dross of step (1) and step (3) obtain is mixed with through compound fertilizer preparation facilities
Compound fertilizer；
(5) raw sugar slurry is after step (3) processing, with the macroreticular resin filled in ethanol elution macroporous resin adsorption device,
Obtain eluent；Eluent is concentrated to get pigment through eluent vaporising device.
Further, the additional amount of milk of lime described in step (1) is the 0.8%~1.5% of sugar-cane juice quality, the phosphorus
The additional amount of acid is the 0.035%~0.1% of sugar-cane juice quality.
Further, the evaporation conditions that juice vaporising device is floated described in step (2) are vacuum degree 0MPa~-0.1MPa,
Temperature 50 C~130 DEG C.
Further, the preferred D201 type of macroreticular resin or D101 type are big in macroporous resin adsorption device described in step (3)
Hole resin.
Further, the voltage of electrodialysis desalination device described in step (3) is 15V~100V.
Further, eluent is concentrated at 55 DEG C~75 DEG C of temperature through eluent vaporising device in step (5), is concentrated into
When original volume 1/20~1/10, stop, obtaining the paste pigment that moisture content is 2%~10%.
System and method of the invention have the following advantages that and the utility model has the advantages that
(1) system of the invention by syrup levitating device, floating juice vaporising device, adsorbent equipment, electrodialysis desalination device,
Eluent vaporising device and compound fertilizer preparation facilities are combined, have equipment investment it is small, installation be easy, ancillary equipment compared with
Less, the advantage that running expense is low, investment is quick, stable, the clear syrup obtained through processing good, ash content with peace and quiet effect
The advantages such as content is low.
(2) system of the invention does not generate calcium carbonate alkaline filter mud, does not use without carbonation and sulphur acid neutralizing unit
SO2, the syrup residence time is short, and sugar loss is few, can increase the purity of product.
(3) the eluent vaporising device that system of the invention is connected by adsorbent equipment prepares pigment, is floated by syrup
The compound fertilizer preparation facilities that device is connected with electrodialysis desalination device prepares compound fertilizer, it can be achieved that the full recycling benefit of waste
With environmental benefit, economic benefit and social benefit highly significant.
Detailed description of the invention
Fig. 1 is connection relationship structural map of the sugar-cane juice without sulphur clarification and desalination system in the embodiment of the present invention；
Fig. 2 is specific flow chart of the sugar-cane juice without sulphur clarification and desalination process in the embodiment of the present invention.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment 1
A kind of sugar-cane juice of the present embodiment is clarified without sulphur and desalination system, and connection relationship structural map is as shown in Figure 1, include
Syrup levitating device 1, floating juice vaporising device 2, adsorbent equipment 3, electrodialysis desalination device 4, eluent vaporising device 5 and compound
Fertilizer preparation facilities 6；The syrup levitating device 1 is arranged floating juice outlet and 1. exports with dross 2., 1. floating juice outlet connects
To floating juice vaporising device 2,2. dross outlet is connected to compound fertilizer preparation facilities 6；The floating juice vaporising device 2 is arranged slightly
3. syrup outlet is connected to adsorbent equipment 3；The adsorbent equipment 3 is connected to electrodialysis desalination device 4, and eluent outlet is arranged
4. being connected to eluent vaporising device 5；The electrodialysis desalination device 4 be arranged clear syrup outlet 5. with concentrated solution outlet 6., it is dense
6. the outlet of contracting liquid is connected to compound fertilizer preparation facilities 6.
Using above system carry out sugar-cane juice without sulphur clarify and desalination method, detailed process as shown in Fig. 2, step such as
Under:
(1) after being separately added into the milk of lime of sugar-cane juice quality 0.8% and 0.035% phosphoric acid in sugar-cane juice, through syrup
Levitating device separation obtains floating juice and dross；
(2) by the resulting floating juice of step (1), through floating juice vaporising device under the conditions of vacuum degree 0MPa, 130 DEG C of temperature
25 ° of Bx are concentrated into, raw sugar slurry is obtained；
(3) the resulting raw sugar slurry of step (2) is successively subjected to adsorption treatment and electricity through D201 type macroporous resin adsorption device
The electrodialysis desalination device that pressure is 15V carries out desalting processing, obtains clear syrup and concentrate；
(4) concentrate that the resulting dross of step (1) and step (3) obtain is mixed with through compound fertilizer preparation facilities
Compound fertilizer；
(5) raw sugar slurry is after step (3) processing, with the macroreticular resin filled in ethanol elution macroporous resin adsorption device,
Obtain eluent；Eluent is concentrated at 55 DEG C of temperature through eluent vaporising device, when being concentrated into original volume 1/10, stops,
Obtain the paste pigment that moisture content is 10%.
Clear syrup major parameter is detected according to the measuring method in international standard ICUMSA, the results showed that sugar-cane juice processing
Preceding purity is 82.5% (weight percent), and treated, and clear purity of syrup is 85.8% (weight percent), improves purity difference
For 85.8-82.5=3.3AP；Clear syrup color value is 700IU560nm；Clear syrup turbidity: 50BTU；Clear syrup amount containing inorganic salts is
0.05% (weight percent).
Embodiment 2
A kind of sugar-cane juice of the present embodiment without sulphur clarify and desalination system, connection relationship structural map as shown in Figure 1, using
The system carries out method of the sugar-cane juice without sulphur clarification and desalination, and detailed process is as shown in Fig. 2, steps are as follows:
(1) after being separately added into the milk of lime of sugar-cane juice quality 1.5% and 0.1% phosphoric acid in sugar-cane juice, through in syrup
Floating device separation, obtains floating juice and dross；
(2) by the resulting floating juice of step (1), through floating juice vaporising device in vacuum degree -0.06MPa, 90 DEG C of items of temperature
It is concentrated into 45 ° of Bx under part, obtains raw sugar slurry；
(3) the resulting raw sugar slurry of step (2) is successively subjected to adsorption treatment and electricity through D201 type macroporous resin adsorption device
The electrodialysis desalination device that pressure is 100V carries out desalting processing, obtains clear syrup and concentrate；
(4) concentrate that the resulting dross of step (1) and step (3) obtain is mixed with through compound fertilizer preparation facilities
Compound fertilizer；
(5) raw sugar slurry is after step (3) processing, with the macroreticular resin filled in ethanol elution macroporous resin adsorption device,
Obtain eluent；Eluent is concentrated at 75 DEG C of temperature through eluent vaporising device, when being concentrated into original volume 1/20, stops,
Obtain the paste pigment that moisture content is 2%.
Clear syrup major parameter is detected according to the measuring method in international standard ICUMSA, the results showed that sugar-cane juice processing
Preceding purity is 81.8% (weight percent), and treated, and clear purity of syrup is 84.7% (weight percent), improves purity difference
For 84.7-81.8=2.9AP；Clear syrup color value is 750IU560nm；Clear syrup turbidity: 45BTU；Clear syrup amount containing inorganic salts is
0.03% (weight percent).
Embodiment 3
A kind of sugar-cane juice of the present embodiment without sulphur clarify and desalination system, connection relationship structural map as shown in Figure 1, using
The system carries out method of the sugar-cane juice without sulphur clarification and desalination, and detailed process is as shown in Fig. 2, steps are as follows:
(1) after being separately added into the milk of lime of sugar-cane juice quality 1.0% and 0.05% phosphoric acid in sugar-cane juice, through in syrup
Floating device separation, obtains floating juice and dross；
(2) by the resulting floating juice of step (1), through floating juice vaporising device in vacuum degree -0.1MPa, temperature 50 C condition
Under be concentrated into 35 ° of Bx, obtain raw sugar slurry；
(3) the resulting raw sugar slurry of step (2) is successively subjected to adsorption treatment and electricity through D101 type macroporous resin adsorption device
The electrodialysis desalination device that pressure is 50V carries out desalting processing, obtains clear syrup and concentrate；
(4) concentrate that the resulting dross of step (1) and step (3) obtain is mixed with through compound fertilizer preparation facilities
Compound fertilizer；
(5) raw sugar slurry is after step (3) processing, with the macroreticular resin filled in ethanol elution macroporous resin adsorption device,
Obtain eluent；Eluent is concentrated under temperature 60 C through eluent vaporising device, when being concentrated into original volume 1/15, stops,
Obtain the paste pigment that moisture content is 5%.
Clear syrup major parameter is detected according to the measuring method in international standard ICUMSA, the results showed that sugar-cane juice processing
Preceding purity is 83.7% (weight percent), and treated, and clear purity of syrup is 86.9% (weight percent), improves purity difference
For 86.9-83.7=3.2AP；Clear syrup color value is 650IU560nm；Clear syrup turbidity: 55BTU；Clear syrup amount containing inorganic salts is
0.04% (weight percent).
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (9)
1. a kind of sugar-cane juice is clarified without sulphur and desalination system, it is characterised in that: the sugar-cane juice is clarified without sulphur and desalination system packet
Include syrup levitating device, floating juice vaporising device, adsorbent equipment, electrodialysis desalination device, eluent vaporising device and compound fertilizer
Expect preparation facilities；Floating juice outlet and dross outlet is arranged in the syrup levitating device, and floating juice outlet is connected to floating juice and steams
Transmitting apparatus, dross outlet are connected to compound fertilizer preparation facilities；The floating juice vaporising device is arranged thick syrup outlet and is connected to
Adsorbent equipment；The adsorbent equipment is connected to electrodialysis desalination device, and eluent outlet is arranged and is connected to eluent evaporation dress
It sets；Clear syrup outlet and concentrated solution outlet is arranged in the electrodialysis desalination device, and concentrated solution outlet is connected to compound fertilizer preparation
Device.
2. a kind of sugar-cane juice according to claim 1 is clarified without sulphur and desalination system, it is characterised in that: the adsorbent equipment
Refer to macroporous resin adsorption device.
3. a kind of sugar-cane juice according to claim 1 is clarified without sulphur and desalination system, it is characterised in that: the compound fertilizer
Preparation facilities refers to mixed granulation machine.
4. a kind of sugar-cane juice is clarified without sulphur and desalination process, it is characterised in that include the following steps:
(1) it after being separately added into a certain amount of milk of lime and phosphoric acid in sugar-cane juice, is separated through syrup levitating device, obtains floating juice
And dross；
(2) by the resulting floating juice of step (1), 25~45 ° of Bx is concentrated into through floating juice vaporising device, obtain raw sugar slurry；
(3) the resulting raw sugar slurry of step (2) is successively subjected to adsorption treatment through macroporous resin adsorption device and electrodialysis desalination fills
Carry out desalting processing is set, clear syrup and concentrate are obtained；
(4) concentrate that the resulting dross of step (1) and step (3) obtain is mixed with through compound fertilizer preparation facilities compound
Fertilizer；
(5) raw sugar slurry, with the macroreticular resin filled in ethanol elution macroporous resin adsorption device, obtains after step (3) processing
Eluent；Eluent is concentrated to get pigment through eluent vaporising device.
5. a kind of sugar-cane juice according to claim 4 is clarified without sulphur and desalination process, it is characterised in that: institute in step (1)
The additional amount for stating milk of lime is the 0.8%~1.5% of sugar-cane juice quality, and the additional amount of the phosphoric acid is sugar-cane juice quality
0.035%~0.1%.
6. a kind of sugar-cane juice according to claim 4 is clarified without sulphur and desalination process, it is characterised in that: institute in step (2)
The evaporation conditions for stating floating juice vaporising device are vacuum degree 0MPa~-0.1MPa, temperature 50 C~130 DEG C.
7. a kind of sugar-cane juice according to claim 4 is clarified without sulphur and desalination process, it is characterised in that: institute in step (3)
Stating macroreticular resin in macroporous resin adsorption device is D201 type or D101 type macroreticular resin.
8. a kind of sugar-cane juice according to claim 4 is clarified without sulphur and desalination process, it is characterised in that: institute in step (3)
The voltage for stating electrodialysis desalination device is 15V~100V.
9. a kind of sugar-cane juice according to claim 4 is clarified without sulphur and desalination process, it is characterised in that: step is washed in (5)
De- liquid is concentrated at 55 DEG C~75 DEG C of temperature through eluent vaporising device, when being concentrated into original volume 1/20~1/10, stops, obtaining
The paste pigment that moisture content is 2%~10%.
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